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Prognostically relevant gene signatures of high-grade serous ovarian carcinoma
Roel G.W. Verhaak,1 Pablo Tamayo,2 Ji-Yeon Yang,1 Diana Hubbard,2,3 Hailei Zhang,3 Chad J. Creighton,4 Sian Fereday,5 Michael Lawrence,2 Scott L. Carter,2,3 Craig H. Mermel,2,3 Aleksandar D. Kostic,2,3 Dariush Etemadmoghadam,5 Gordon Saksena,2 Kristian Cibulskis,2 Sekhar Duraisamy,3 Keren Levanon,3,6 Carrie Sougnez,2 Aviad Tsherniak,2 Sebastian Gomez,2 Robert Onofrio,2 Stacey Gabriel,2 Lynda Chin,2,3 Nianxiang Zhang,1 Paul T. Spellman,7 Yiqun Zhang,4 Rehan Akbani,1 Katherine A. Hoadley,8 Ari Kahn,9 Martin Köbel,10 David Huntsman,11 Robert A. Soslow,12 Anna Defazio,13 Michael J. Birrer,14 Joe W. Gray,7 John N. Weinstein,1 David D. Bowtell,5 Ronny Drapkin,3 Jill P. Mesirov,2 Gad Getz,2 Douglas A. Levine,15 Matthew Meyerson,2,3 and The Cancer Genome Atlas Research Network
1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
Find articles by Verhaak, R. in: JCI | PubMed | Google Scholar
1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
Find articles by Yang, J. in: JCI | PubMed | Google Scholar
1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
Find articles by Mermel, C. in: JCI | PubMed | Google Scholar
1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
Find articles by Duraisamy, S. in: JCI | PubMed | Google Scholar
1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
Find articles by Levanon, K. in: JCI | PubMed | Google Scholar
1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
Find articles by Sougnez, C. in: JCI | PubMed | Google Scholar
1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
Find articles by Köbel, M. in: JCI | PubMed | Google Scholar
1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
Find articles by Huntsman, D. in: JCI | PubMed | Google Scholar
1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
Find articles by Soslow, R. in: JCI | PubMed | Google Scholar
1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
Find articles by Birrer, M. in: JCI | PubMed | Google Scholar
1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
Find articles by Gray, J. in: JCI | PubMed | Google Scholar
1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
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1Department of Bioinformatics and Computational Biology, MD Anderson Cancer Center, Houston, Texas, USA. 2The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA. 3Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA. 4Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA. 5Cancer Genetics and Genomics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. 6Sheba Cancer Research Center, Chaim Sheba Medical Center, Ramat Gan, Israel. 7Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, USA. 8Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA. 9SRA International, Fairfax, Virgina, USA. 10Department of Pathology and Laboratory Medicine, University of Calgary, Calgary Laboratory Services, Calgary, Alberta, Canada. 11British Columbia Cancer Agency, Centre for Translational and Applied Genomics, Vancouver, British Columbia, Canada. 12Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA. 13Department of Gynaecological Oncology and Westmead Institute for Cancer Research, University of Sydney at Westmead Millennium Institute, Westmead, New South Wales, Australia. 14Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA. 15Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Address correspondence to: Roel G.W. Verhaak, University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1410, Houston, Texas 77030, USA. Phone: 713.563.2293; Fax: 713.563.4242; E-mail: rverhaak@mdanderson.org.
Published December 21, 2012 - More info
J Clin Invest. 2013;123(1):517–525. https://doi.org/10.1172/JCI65833.
© 2012 The American Society for Clinical Investigation
Received: July 31, 2012; Accepted: October 24, 2012
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Results
Gene expression profiles from individual HGS-OvCa tumor samples exhibit features of multiple subtype signatures. It was previously reported that a portion of ovarian tumor samples are characterized by high numbers of infiltrating T lymphocytes or stromal cells and that such tumor samples can be recognized by expression profiling (23, 24). Using immunohistochemistry, we identified an increased number of samples with infiltrating T lymphocytes in the Immunoreactive group (42% [n = 19] vs. 16% [n = 80]; P < 0.01, Fisher exact test), whereas desmoplasia, associated with infiltrating stromal cells, was found more often in the Mesenchymal cluster, with borderline significance (27% [n = 26] vs. 12% [n = 63]; P = 0.07, Fisher exact test). To investigate the possibility that tumor samples expressing the Immunoreactive and Mesenchymal signatures were additionally expressing the non–infiltrating cell–associated Differentiated or Proliferative signature, we used single-sample gene set enrichment analysis (ssGSEA) to assess gene set activation scores for all 489 tumor samples. ssGSEA is a rank-based comparison of the expression levels of genes in the gene set with all other genes in an expression profile. In this analysis, expression profiles clustering with, for instance, the Differentiated group will have a high Differentiated signature score. Signatures of the 4 subtypes were described previously (20). To define ssGSEA score cutoffs for inclusion in the set of samples expressing a subtype signature, we first assessed the silhouette width for each clustered profile. The silhouette width is defined as the ratio between the smallest correlation between a profile and all other profiles within its cluster and the largest correlation between that profile and all other profiles outside its cluster. The minimum ssGSEA score among samples that defined the original clusters and that clustered with a positive silhouette width to establish the ssGSEA score was used as cutoff value for inclusion into a subtype set. In this analysis, 82% of the 489 expression profiles were assigned to at least 2 subtypes (Figure 1 and Supplemental Table 1; supplemental material available online with this article; doi: 10.1172/JCI65833DS1). For comparison, a similar analysis on our previously reported subtypes of glioblastoma (25) assigned 24% of expression profiles to more than 1 class (Supplemental Figure 1). Every possible signature combination was observed in at least 1 tumor sample, and negative correlations were observed between the Immunoreactive and Proliferative signatures (r2 = –0.81) and between the Differentiated and Mesenchymal signatures (r2 = –0.57). The overlap in gene signature scores suggests that HGS-OvCa does not consist of mutually exclusive expression subtypes, but that each tumor sample is represented by multiple signatures at different levels of activation. This pattern may reflect a higher level of homogeneity than is seen in other tumor types, such as glioblastoma and breast cancer.
Figure 1HGS-OvCa signature ssGSEA scores. ssGSEA scores for 489 HGS-OvCa tumor samples were generated using 4 previously described gene expression signatures (20): differentiated (D), immunoreactive (I), mesenchymal (M), and proliferative (P). (A) Binary scores indicating whether a tumor sample activates the gene signature. Each column represents 1 sample; each row represents 1 gene signature. Red, activated; black, not activated. (B) Raw gene set activation scores. Each column represents 1 sample; each row represents 1 gene signature. (C) Scatter plots and r2 values (numbers within plots) for all gene set combinations.
Characterization of gene expression signatures. To assess whether the 4 HGS-OvCa subtype expression signatures were associated with specific genomic aberrations, we investigated whether gene set activation scores were significantly increased in altered versus nonaltered samples. Genes with alterations in more than 3% of samples were included in the analysis (copy number alterations, n = 489; mutation events, n = 316). After Benjamini-Hochberg correction of gene set score t test P values for multiple testing, no gene mutation or copy number deletion resulted in a significant change of gene set score. Copy number amplifications of 367 genes, mapping to 13 different commonly amplified regions, were found to be associated with a significant increase of activation levels of at least 1 of the 4 ovarian cancer signatures (Supplemental Table 2). To gain further insight into the possible target of amplification for the 13 amplification regions, we calculated Pearson correlation coefficients among 279 amplified genes with matching expression data and gene set activation scores. Of 11 genes with matching expression data at 1q32.1, LAD1, which regulates stability of epithelial layer stability with mesenchyme, showed a correlation with the Differentiated gene set that was distinctly higher than other genes. When linking 105 genes at the 19q13 locus with expression levels to the Proliferative signature, we found NOTCH3 to be among the most highly correlated. NOTCH3 inactivation in samples expressing the Proliferative signature may provide a therapeutic opportunity (26). The 12q14 gene whose expression correlated most highly with the Proliferative gene set was HMGA2, which suggests a role for this chromatin-modifying gene that has previously been related to progression in lung adenocarcinoma (27). Amplification of the transcription factor MYC was associated with a significant difference in Differentiated and Immunoreactive gene set scores, but correlation was much higher with Differentiated than with Immunoreactive signature scores.
The gene signatures were further characterized by correlating signature activation scores to the activation scores of 7,565 gene sets from the Molecular Signatures Database ( http://www.broadinstitute.org/msigdb/; ref. 28) and gene expression levels (see Supplemental Methods).
Predicting outcome using an integrated signature classifier. We previously described a transcriptional signature of 193 genes predictive of overall survival, which was developed using univariate Cox regression analysis on the expression profiles of 215 HGS-OvCa samples (20). In order to maximize the discovery power of the TCGA dataset, we used all 481 TCGA HGS-OvCa–derived expression profiles with matching clinical data, rather than the 215 profiles used in our previous work (20). To generate the new signature, we selected the 100 genes whose expression was most correlated (good prognosis genes, n = 47), or anticorrelated (poor prognosis genes, n = 53), with survival (Supplemental Table 3). We chose a signature of 100 genes to prevent sensitivity to overfitting of the data and to permit analysis of new samples with a medium-throughput expression assay. We named this signature the “Classification of Ovarian Cancer” (CLOVAR) survival signature. Gene set enrichment analysis of the 100-gene CLOVAR survival signature, which includes genes such as RB1, NFKBIB, and RXRB, showed an overlap between the signature and Molecular Signatures Database gene sets such as BENPORATH_MYC_MAX_TARGETS and LY_AGING_OLD_UP (Supplemental Table 4). Of the 100 genes in the CLOVAR survival signature, 36 were included from our recently reported 193-gene survival signature (20).
To verify the prognostic power of the CLOVAR survival signature, we used ssGSEA to analyze 64 TCGA expression profiles not included in the training dataset and 815 expression profiles with matching survival annotation from 6 published studies (9, 10, 23, 29–31). CLOVAR survival signature ssGSEA scores were calculated for each of the 7 validation datasets. The validation cohort included data generated on 5 different expression platforms, and the scale of the ssGSEA scores was dependent on the total number of genes included in the expression platform used. To make ssGSEA scores comparable between different expression platforms, scores were converted to a [0,1] scale within each dataset (see Methods). The validation set was stratified into CLOVAR poor prognosis or CLOVAR good prognosis groups using a cutoff score of 0.5. The difference in survival between the 2 prognostic groups was highly statistically significant (P < 0.0001; Figure 2A).
Figure 2Survival per CLOVAR subtype, CLOVAR survival class, and double classifiers. Kaplan Meier curves for CLOVAR survival class (A), survival per CLOVAR subtype (B), and double classification of samples by both CLOVAR subtype and CLOVAR survival signature (C). Data represent survival capped at 60 months for 879 samples in the validation set. (D) A further significant difference in survival was observed between optimally and suboptimally debulked CLOVAR Mesenchymal/CLOVAR poor prognosis patients.
A significant difference in recurrence-free survival was observed between patients in the TCGA cohort whose tumor samples expressed either the Immunoreactive or the Mesenchymal signature (Supplemental Figure 2). Next, we set out to verify this survival characteristic in the validation cohort. As reducing the size of the signature allows for the use of medium-high throughput gene expression quantification systems, we first reduced the 4 subtype signatures from 800 genes to gene signatures that, combined, contained 100 genes. We refer to these herein as CLOVAR subtype signatures. The CLOVAR subtype signatures classified the TCGA cohort into the 4 groups used to define the signatures with a cross-validation error rate of 8%, which indicates that the original clustering was captured by the reduced signatures. In order to determine whether validation cohort samples expressed the subtype signatures, we assessed ssGSEA scores of CLOVAR subtype signatures in the TCGA expression dataset. The minimum ssGSEA score among core samples was used to establish the ssGSEA score used as a cutoff value for inclusion into a subtype set. Using these ssGSEA cutoff values, tumor samples in the validation cohort were identified as expressing the CLOVAR Immunoreactive or CLOVAR Mesenchymal signatures. Cases expressing both signatures were assigned to a class according to the higher of the 2 scores. Those samples that did not express one of the signatures related to infiltrating cells were assigned to the CLOVAR Proliferative, CLOVAR Differentiated, CLOVAR Immunoreactive, or CLOVAR Mesenchymal class depending on the highest normalized gene set score for the 4 CLOVAR gene set signatures. Kaplan-Meier analysis revealed a highly significant difference in survival among the 4 validation set expression groups established by this approach (P < 0.0001; Figure 2B).
To combine the CLOVAR survival and CLOVAR subtype signatures for outcome prediction, we established a multiple covariate model using the TCGA dataset and including 3 signature scores as variables: CLOVAR survival, CLOVAR Immunoreactive, and CLOVAR Mesenchymal. In this model, CLOVAR survival was the dominant variable (Supplemental Table 5). Based on this model with CLOVAR survival and CLOVAR subtype as covariates, we computed risk scores of patients in training and validation sets. Patients in each set were then classified into good, intermediate, and poor outcome groups according the risk scores, using tertiles of risk scores for the TCGA set as cutoffs. We used this model to compute risk scores and classified the validation set (n = 879) into good, intermediate, and poor outcome groups, which showed 5-year survival of 55%, 38%, and 29%, respectively. Next, we tested whether including additional prognostic factors could improve the predictions. CLOVAR survival, CLOVAR Immunoreactive, and CLOVAR Mesenchymal scores, stage, grade, residual disease, and age annotation were available on 428 TCGA patients, which were used to calibrate a model (Supplemental Table 5). Using this extended model, we classified 328 patients from the validation set for which these parameters were available. The 5-year survival of the good, intermediate, and poor outcome groups using the extended model was 60%, 39%, and 27%, respectively. Lastly, we tested whether addition of “presence of BRCA1/BRCA2 germline mutations” to the model could further inform prognostic classification. BRCA1/BRCA2 germline data were available for 273 patients in the TCGA set and 83 patients in the validation set. The 5-year survival of the good, intermediate, and poor outcome groups in the validation set using the extended model including BRCA1/BRCA2 germline mutations was 61%, 25%, and 0%, respectively. To compare the performance of the 3 models, we computed likelihoods for the TCGA and validation sets using high/intermediate/low classification as a covariate, only including samples with nonmissing data on all variables (TCGA, n = 273; validation set, n = 83; Figure 3). Both in the TCGA set, which was used to train the models, and in the validation set, the extended model combined with BRCA1/BRCA2 germline mutation status showed the highest likelihood, suggesting most accurate performance in outcome prediction. Although the comparison may be hampered by the specific set of cases for which the correct annotation was available, this result suggests that a model combining CLOVAR survival, CLOVAR Immunoreactive, and CLOVAR Mesenchymal scores and BRCA1/BRCA2 germline mutation status provides optimal outcome predictions.
Figure 3Survival analysis of multiple covariate outcome predictions. A multiple covariate proportional hazards model was trained using (A) only CLOVAR survival and CLOVAR subtype signatures; (B) CLOVAR survival and CLOVAR subtype signatures, stage, grade, age, and residual disease; or (C) CLOVAR survival and CLOVAR subtype signatures, stage, grade, age, residual disease, and BRCA1/BRCA2 germline mutations. Models were trained on a training dataset (TCGA samples; n = 273) and tested on the validation set (n = 83), including all samples with nonmissing data on all variables. The difference in outcome of the 3 predicted groups was tested using Kaplan-Meier survival analysis.
As BRCA1/BRCA2 germline mutation status was only available for 9.4% of samples in the validation set, we sought to further optimize outcome prediction through combination of the CLOVAR survival and CLOVAR subtype signatures. We performed Kaplan-Meier survival analysis between samples with CLOVAR poor prognosis and CLOVAR good prognosis survival signatures within each of the CLOVAR Immunoreactive, CLOVAR Mesenchymal, CLOVAR Proliferative, and CLOVAR Differentiated subtypes. Importantly, the CLOVAR survival classifier predicted outcome with high significance within each of the 4 CLOVAR subtype groups (Figure 2C). The worst outcome was found in patients with tumors classified as both CLOVAR Mesenchymal and CLOVAR poor prognosis, which represented 23% of the validation set and showed a median overall survival of 23 months. The hazard ratio for death within 5 years of diagnosis for this group compared with the remainder of the sample cohort was 1.95 (95% confidence interval, 1.59 to 2.40), and the hazard ratio for recurrence within 12 months was 1.66 (95% confidence interval, 1.26 to 2.18) (Supplemental Table 6). Of the CLOVAR Mesenchymal/CLOVAR poor prognosis cases, 63% were determined to be resistant to platinum therapy, defined as having tumor recurrence within 6 months after the end of platinum therapy (Supplemental Table 1 and Supplemental Figure 3). All other samples — those not classified as CLOVAR Mesenchymal/CLOVAR poor prognosis — showed a platinum resistance rate of 23%. To refine the classification, we sought to understand those CLOVAR Mesenchymal/CLOVAR poor prognosis patients that had a relatively favorable outcome, with greater than 12 months progression-free survival (PFS). Germline BRCA1/BRCA2 mutations are associated with increased response rates to chemotherapy and overall survival (32). However, germline BRCA1/BRCA2 mutations were not found more frequently among tumor samples predicted as CLOVAR Mesenchymal/CLOVAR poor prognosis with greater than 12 months PFS compared with those CLOVAR Mesenchymal/CLOVAR poor prognosis samples with less than 12 months PFS. Similarly, such patients were not more likely to have been optimally debulked, were not younger, and did not receive a different treatment regimen compared with patients for which there was concordance between molecular prediction and poor clinical outcome. Interestingly, the amount of residual tumor after surgical debulking was independently related to prognosis in the CLOVAR Mesenchymal/CLOVAR poor prognosis, CLOVAR Immunoreactive/CLOVAR poor prognosis, and CLOVAR Differentiated/CLOVAR poor prognosis groups (Figure 2D and Supplemental Figure 4). Understanding the misclassification of these patients requires further investigation and will assist in more accurate prediction of PFS.
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Methods
Patients and tumor samples. HGS-OvCa samples were collected and processed through the TCGA Biospecimens Core Resource at the International Genomics Consortium; the same set of samples was used as in the prior TCGA ovarian carcinoma report (20). 489 ovarian tumors were selected according to the following criteria: (a) at least 70% tumor nuclei and less than 20% necrosis, (b) microarray quality controls within standards, and (c) high-quality data on each of the 3 gene expression platforms used. See Supplemental Table 1 for patient characteristics; all patient data have been deposited at the Data Coordinating Center of TGCA ( http://cancergenome.nih.gov).
Microarray experiments and data processing. Gene expression profiles were established as described previously (20, 21, 25). In short, samples were assayed on 3 different microarray platforms: Affymetrix Human Exon 1.0 ST GeneChips, Affymetrix HT-HG-U133A GeneChips, and custom designed Agilent 244,000 feature gene expression microarrays. Microarray labeling and hybridization protocols and quality control measures for each platform were performed as described elsewhere. Probes on all 3 platforms were aligned to a transcript database consisting of RefSeq (36.1) and complete coding sequences from GenBank (version 161). Affymetrix HT-HGU133A and Exon platforms were normalized and summarized using robust multichip average (RMA). Agilent data were lowess normalized and log transformed, and the mean was used to calculate gene level summaries. Gene-centric expression values were generated for every gene with at least 5 (Affymetrix) or 3 (Agilent) perfect-match probes per gene, resulting in expression values for 12,042 (HT-HGU133A), 18,632 (Exon), and 18,623 (Agilent) genes, the intersect of the 3 platforms being 11,861 genes. All data are available at TCGA ( https://tcga-data.nci.nih.gov/tcgafiles/ftp_auth/distro_ftpusers/anonymous/other/publications/ov_exp/). The full data have been described in detail elsewhere (ref. 21 and TCGA Data Primer; https://wiki.nci.nih.gov/display/TCGA/TCGA+Data+Primer). Factor analysis was used to integrate these measurements together into a single estimate of the relative gene expression, as described previously (25, 42), and resulted in a unified gene estimate for each sample for 11,861 genes.
Subclass signature gene and gene set identification. The significance analysis of microarrays (SAM) method was used to identify marker genes and gene sets of each subtype. Each class was compared with the other 3 classes combined (43). We have provided both rank order and test statistics for all these analyses to allow independent confirmation of our findings on future analyses and datasets. The 200 most representative genes per TCGA expression cluster were selected by ranking genes by the F score (the measure used by SAM to indicate the difference in gene expression between 2 groups) for a given gene (43). F scores that are further deviated from 0 indicate a larger difference in gene expression. Signature genes could be either down- or upregulated. We limited our analysis to patients whose expression profiles clustered with a positive silhouette width (n = 413), a measure of how well a given expression profile represents the cluster of which it is a member. For marker gene set identification, SAM was applied on gene set activation scores.
Validation datasets. Class signatures were verified using expression profiles of 64 additional TCGA U133A expression profiles and publicly available stage II–III–IV ovarian serous carcinoma samples (GEO accession no. GSE9899; refs. 9, 10, 23, 29–31). Probes from Affymetrix HG-U133A or HG-U133plus2 GeneChip platforms were mapped to a transcript database and combined in 1 probe set per gene (44). Expression levels from the 4 Affymetrix datasets were individually established using RMA and quantile normalization (45). The Operon Human version 3 dataset of Crijns et al. (9) was downloaded from GEO (accession no. GSE13876). For each gene within each sample, expression values were averaged for the 2 dye swap profiles. Probes measuring the same gene were averaged to get 1 expression value per gene and sample.
We used ssGSEA (see below) to generate gene set activation scores for each of the 4 signatures, after dimension reduction of the 800 genes in the combined signatures to the 100 genes included in the CLOVAR subtype signatures to facilitate classification of new samples using medium-throughput expression technologies (Supplemental Table 7). We used a Correlation-based Feature Subset Selection algorithm available in Weka software, version 3.6.2 (46, 47). The search method was set to Best First search with default values. 10-fold cross validation was performed on the data. For each of the 10 runs, the algorithm output the best subset of genes it could find. Then, each of the genes was assigned a score based on how many subsets it was included in out of 10. We sorted the genes in descending order based on their scores: genes that appeared in all 10 subsets were at the top, followed by genes included in 9 subsets, and so on. To establish a 100-gene signature capable of predicting subtype, we selected the top 100 genes of this list that were additionally present in each of the 4 validation sets. The 100-gene set was used to train support vector machines for classification of samples in the validation set. Mean classification error when applying the 100-gene signature was 8% (CLOVAR Differentiated, 9%; CLOVAR Immunoreactive, 9%; CLOVAR Mesenchymal, 6%; CLOVAR Proliferative, 8%), which indicates that classification can be performed with small error rates using the 100-gene signature. Using the 100-gene signature and ssGSEA, we assigned 879 expression profiles in the validation set to 1 of the 4 classes.
Prediction of survival. Using the 481 samples in the TCGA cohort for which survival annotation was supplied, each gene in the unified expression dataset (n = 11,861) was assigned a univariate Cox P value for correlation with survival. The 100 genes with lowest Cox P values were used to calculate a prognostic t score, defined as the 2-sided t statistic comparing, within each tumor profile, the average of the poor prognosis mRNAs with the average of the good prognosis mRNAs (i.e., the t score for a given tumor being high when both the poor prognosis mRNAs in the signature were high and the good prognosis mRNAs were low) (48).
ssGSEA scores and gene sets. ssGSEA was used to generate gene set activation scores for the subtype, CLOVAR subtype, and CLOVAR survival expression signatures. For a given sample, gene expression values were rank normalized and rank ordered. The empirical cumulative distribution functions (ECDFs) of the genes in the signature and the remaining genes were calculated. A statistic was calculated by an integration of the difference between the ECDFs, which is similar to the one used in GSEA, but based on absolute expression rather than differential expression (25). The details of the procedure are as follows: for a given signature G of size NG and single sample S, of the dataset of N genes, the genes are replaced by their ranks according to their absolute expression L = {r1, r2, r3, . . . , rN} and rank ordered. An enrichment score ES(G,S) is obtained by a weighted sum (integration) of the difference between the ECDF of the genes in the signature PG and the ECDF of the remaining genes PNG.
(Equation 1)
This calculation was repeated for each gene set in the database and each sample in the dataset. Notice that this quantity is signed, and that the exponent α = 3/4 adds a rank-associated weight.
The normalized ssGSEA scores are obtained in a similar manner as the normalized enrichment scores are obtained in standard GSEA (49). For a given sample, the ssGSEA normalized enrichment score is obtained by dividing the observed raw ssGSEA by the mean of the raw ssGSEA scores obtained for randomized versions of the gene set’s tags. This normalization uses the mean of the positive/negative permutation raw ssGSEA scores according to the sign (positive/negative) of the observed ssGSEA score. The normalization adjusts the ssGSEA scores to be in the same scale regardless of the size of the gene set and is motivated by the asymptotic scaling of the Kolmogorov-Smirnov statistic as a function of gene set size (see ref. 49 and Supplemental Methods).
Gene sets were downloaded from the Molecular Signatures Database (collection C2, version 3.0; http://www.broadinstitute.org/msigdb; ref. 28) and complemented by the Oncogene Pathway Activation database, a manually curated collection of 296 gene sets defined from GEO gene expression datasets and the biomedical literature as representing oncogene activation or tumor suppressor dysregulation (49). These 2 collections were augmented with additional “combined” signatures for the ones that have both upregulated (UP) and downregulated (DN) versions, producing a total of 7,553 gene sets. Subtypes were annotated using gene sets (see Supplemental Methods).
Subclass classification. In order to establish the subtype of tumor samples in the validation set, CLOVAR subtype gene set scores were generated using ssGSEA. Scores were normalized to allow comparability between datasets from different expression platforms as described above. Of the TCGA samples originally clustering in the Immunoreactive subtype with a positive silhouette width, the lowest CLOVAR Immunoreactive signature normalized ssGSEA score was determined to be 0.63. Similarly, of the TCGA samples originally clustering in the Mesenchymal subtype, the lowest CLOVAR Mesenchymal signature ssGSEA score was determined to be 0.56. All samples in the validation set that expressed the CLOVAR Immunoreactive/CLOVAR Mesenchymal signature above these thresholds were assigned to the Immunoreactive (n = 280) and Mesenchymal (n = 282) groups per the higher of the 2 normalized ssGSEA scores. Samples in the validation set were assigned to 1 of the 4 classes per the highest of the 4 normalized ssGSEA scores. Normalized ssGSEA scores were additionally determined for the CLOVAR survival gene set, and cases were assigned to CLOVAR poor prognosis and CLOVAR good prognosis groups based on a score threshold of 0.5.
Associations of gene expression signatures with mutations and copy number alterations. Segmented copy number profiles from the Agilent 244K platform were available for 489 ovarian carcinoma samples and matched normal controls. Preprocessing was performed using the GISTIC2.0 pipeline, as described previously (20, 50). All genes that were reported to be altered in at least 10 of 489 cases (1,437 deleted, 8,793 amplified) were categorized using sample-specific thresholds as previously described (21) into 1 of 3 levels: (a) deep deletion, (b) neutral copy number, and (c) high gain. Deletions and gains were tested independently of each other.
Nearly complete exon sequence data on 18,500 genes and 316 samples was used to report 19,356 somatic mutations in the previously reported integrated genomic analysis of ovarian carcinoma (20).
Association of copy number alterations and mutations with gene expression signatures was determined by comparing the normalized gene set scores of altered and nonaltered samples using a paired t test and using the Hochberg method implemented in p.adjust ( http://www.R-project.org) for controlling the family-wise error rate.
Expression profiling of normal fallopian tube. Fresh Fallopian tube fimbria specimens were obtained from the Brigham and Women’s Hospital Department of Pathology with IRB approval. Only fimbria from nononcologic gynecological procedures were used. The tissue was incubated in a dissociation medium composed of MEM (Cellgro) supplemented with 3.5 mg/ml Pronase (Roche Diagnostics) and 0.25 mg/ml DNase (Sigma-Aldrich) for 48–72 hours in 4°C with constant mild agitation as previously described (51). The dissociated epithelial cells were harvested by centrifugation cultured in growth medium (DMEM/Ham’s F12, 1:1 [Cellgro], supplemented with 2% serum substitute Ultroser G [Pall Corp.] and 1% penicillin/streptomycin [PS; Invitrogen]) on culture dishes treated with human collagen IV (Sigma-Aldrich; 0.06 mg/ml in water). RNA from the cells was extracted using TRIzol reagent (Invitrogen) followed by RNeasy clean-up kit (Qiagen). Expression profiling was performed using Human Genome U133 Plus 2.0 microarray (Affymetrix).
Histopathological features. For a subset of 98 TCGA ovarian carcinomas, a single slide stained for H&E was scanned at ×20 using Aperio XS slide scanner (Aperio). At low-power magnification, the extent of demoplastic stromal reaction was recorded as extensive if the tumor cell/stroma ratio was less than 2:1, i.e., the desmoplastic stroma accounted for at least one-third of the tumor area. Typically, tumor cells were seen in a nested pattern surrounded by abundant stroma. At high-power magnification, 10 fields were counted for the presence of intratumoral lymphocytes within the cellular borders of tumor cells. Prominent intratumoral lymphocytosis was defined as >10 lymphocytes per average high-power field.
Computation of risk scores. To evaluate the CLOVAR survival signature for outcome prediction, 3 different models were considered. The first model included 2 covariates, CLOVAR survival score and CLOVAR subtype signatures (Figure 3A), grouping all samples into 3 categories: CLOVAR Immunoreactive, CLOVAR Mesenchymal, and others. In order to test whether including additional prognostic factors would improve the predictions, the first model was extended (Figure 3B) by adding the following 4 potential prognostic factors to the CLOVAR survival signature model: (a) stage, (b) grade, (c) age, and (d) residual disease. Next, the addition of “presence of BRCA1/BRCA2 germline mutations” to the second model was evaluated (Figure 3C). For this purpose, the third model included CLOVAR survival score, CLOVAR subtype signatures, stage, grade, age, residual disease, and presence of BRCA1/BRCA2 germline mutations as predictors of survival. To make a fair comparison among models, the same set of samples was used for all 3 models (TCGA training set, n = 273; validation set, n = 83), with nonmissing data on all variables. In each model, the risk score was computed for each patient, defined as a linear combination of predictor variables weighted by their respective Cox regression coefficients. Patients in the training set were then classified into good, intermediate, and poor outcome groups according to the risk scores, using tertile scores of the training set as cutoffs. Similarly, patients in the validation set were split into 3 risk groups using the same cutoffs as used for the training set. Differences in survival times were tested using the log-rank test.
Statistics. Statistical analysis was performed using the R statistical computing environment. The SAM method was used to identify marker genes and gene sets of each subtype, ranking genes and gene sets by F test score and with a q value less than 0.05 considered significant. Log-rank likelihood models and Cox proportional hazards regression models were used to test for differences in survival, and a P value of less than 0.05 was considered significant. A paired 2-sided Student’s t test was used to test the significance of association between expression subtype and genomic alterations. P values were corrected for multiple testing using the Hochberg method for controlling the family-wise error rate. Corrected P values less than 0.05 were considered significant.
Study approval. Ovarian cancer samples were collected and processed through the TCGA Biospecimens Core Resource at the International Genomics Consortium (Phoenix, Arizona, USA), as described elsewhere (20). All specimens were collected using IRB-approved protocols and were deidentified to ensure patient confidentiality. All data used in this study have been published previously, or through TCGA.
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