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TGF-β specifies T FH versus T H 17 cell fates in murine CD4 + T cells through c-Maf

T follicular helper (T ) cells are essential for effective antibody responses, but deciphering the intrinsic wiring of mouse T cells has long been hampered by the lack of a reliable protocol for their generation in vitro. We report that transforming growth factor-β (TGF-β) induces robust expression...

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Published in:Science immunology 2024-03, Vol.9 (93), p.eadd4818
Main Authors: Chang, Yinshui, Bach, Luisa, Hasiuk, Marko, Wen, Lifen, Elmzzahi, Tarek, Tsui, Carlson, Gutiérrez-Melo, Nicolás, Steffen, Teresa, Utzschneider, Daniel T, Raj, Timsse, Jost, Paul Jonas, Heink, Sylvia, Cheng, Jingyuan, Burton, Oliver T, Zeiträg, Julia, Alterauge, Dominik, Dahlström, Frank, Becker, Jennifer-Christin, Kastl, Melanie, Symeonidis, Konstantinos, van Uelft, Martina, Becker, Matthias, Reschke, Sarah, Krebs, Stefan, Blum, Helmut, Abdullah, Zeinab, Paeschke, Katrin, Ohnmacht, Caspar, Neumann, Christian, Liston, Adrian, Meissner, Felix, Korn, Thomas, Hasenauer, Jan, Heissmeyer, Vigo, Beyer, Marc, Kallies, Axel, Jeker, Lukas T, Baumjohann, Dirk
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Language:English
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Summary:T follicular helper (T ) cells are essential for effective antibody responses, but deciphering the intrinsic wiring of mouse T cells has long been hampered by the lack of a reliable protocol for their generation in vitro. We report that transforming growth factor-β (TGF-β) induces robust expression of T hallmark molecules CXCR5 and Bcl6 in activated mouse CD4 T cells in vitro. TGF-β-induced mouse CXCR5 T cells are phenotypically, transcriptionally, and functionally similar to in vivo-generated T cells and provide critical help to B cells. The study further reveals that TGF-β-induced CXCR5 expression is independent of Bcl6 but requires the transcription factor c-Maf. Classical TGF-β-containing T helper 17 (T 17)-inducing conditions also yield separate CXCR5 and IL-17A-producing cells, highlighting shared and distinct cell fate trajectories of T and T 17 cells. We demonstrate that excess IL-2 in high-density T cell cultures interferes with the TGF-β-induced T cell program, that T and T 17 cells share a common developmental stage, and that c-Maf acts as a switch factor for T versus T 17 cell fates in TGF-β-rich environments in vitro and in vivo.
ISSN:2470-9468
2470-9468
DOI:10.1126/sciimmunol.add4818