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Clinical MedicineIn-Press PreviewInfectious disease Open Access | 10.1172/JCI188016
1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
Find articles by Dallmann-Sauer, M. in: JCI | PubMed | Google Scholar
1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
Find articles by Fava, V. in: JCI | PubMed | Google Scholar |
1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
Find articles by Malherbe, S. in: JCI | PubMed | Google Scholar
1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
Find articles by MacDonald, C. in: JCI | PubMed | Google Scholar
1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
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1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
Find articles by Kroon, E. in: JCI | PubMed | Google Scholar
1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
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1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
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1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
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1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
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1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
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1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
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1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
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1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
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1Program in Infectious Diseases and Global Health, The Research Institute of the McGill University Health Centre, Montréal, Canada
2outh African Medical Research Council Centre for Tuberculosis Research, Bio, Stellenbosch University, Cape Town, South Africa
3South African Medical Research Council Centre for Tuberculosis Research, Di, Stellenbosch University, Cape Town, South Africa
4St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller , The Rockefeller University, New York, United States of America
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Published January 21, 2025 - More info
Natural resistance to Mycobacterium tuberculosis (Mtb) infection in some people with HIV (PWH) is unexplained. We performed single cell RNA-sequencing of bronchoalveolar lavage cells, unstimulated or ex vivo stimulated with Mtb, for 7 PWH who were TST & IGRA positive (called LTBI) and 6 who were persistently TST & IGRA negative (called resisters). Alveolar macrophages (AM) from resisters displayed a baseline M1 macrophage phenotype while AM from LTBI did not. Resisters displayed alveolar lymphocytosis, with enrichment of all T cell subpopulations including IFNG-expressing cells. In both groups, mycobactericidal granulysin was expressed almost exclusively by a T cell subtype that co-expressed granzyme B, perforin and NK cell receptors. These poly-cytotoxic T lymphocytes (CTL) over-expressed activating NK cell receptors and were increased in resister BAL. Following challenge with Mtb, only Intraepithelial Lymphocytes-like cells from LTBI participants responded with increased transcription of IFNG. AM from resisters responded with a stronger TNF signature at 6h post-infection while at 24h post-infection AM from LTBI displayed a stronger IFN-γ signature. Conversely, at 24h post-infection only AM from resisters displayed a significant upregulation of MICA transcripts which encode an activating ligand for poly-CTL. These results suggest that poly-CTL and AM mediate the resister phenotype in PWH.