B cells play a central role in immune system function. Deregulation of normal B cell maturation can lead to the development of autoimmune syndromes as well as B cell malignancies. Elucidation of the molecular features of normal B cell development is important for the development of new target therapies for autoimmune diseases and B cell malignancies. Employing B cell–specific conditional knockout mice, we have demonstrated here that the transcription factor leukemia/lymphoma-related factor (LRF) forms an obligate dimer in B cells and regulates mature B cell lineage fate and humoral immune responses via distinctive mechanisms. Moreover, LRF inactivation in transformed B cells attenuated their growth rate. These studies identify what we believe to be a new key factor for mature B cell development and provide a rationale for targeting LRF dimers for the treatment of autoimmune diseases and B cell malignancies.
Nagisa Sakurai, Manami Maeda, Sung-Uk Lee, Yuichi Ishikawa, Min Li, John C. Williams, Lisheng Wang, Leila Su, Mai Suzuki, Toshiki I. Saito, Shigeru Chiba, Stefano Casola, Hideo Yagita, Julie Teruya-Feldstein, Shinobu Tsuzuki, Ravi Bhatia, Takahiro Maeda
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The BTB-ZF transcription factor Zbtb20 is driven by Irf4 to promote plasma cell differentiation and longevity
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International Journal of Surgical Pathology | 2013 |
ADAM10 Regulates Transcription Factor Expression Required for Plasma Cell Function
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Stage-specific functions of leukemia/lymphoma-related factor (LRF) in the transcriptional control of osteoclast development
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Proceedings of the National Academy of Sciences | 2012 |
LRF-mediated Dll4 repression in erythroblasts is necessary for hematopoietic stem cell maintenance
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