B cells expressing the transcription factor T-bet drive lupus-like autoimmunity
Kira Rubtsova, Anatoly V. Rubtsov, Joshua M. Thurman, Johanna M. Mennona, John W. Kappler, Philippa Marrack
Kira Rubtsova, Anatoly V. Rubtsov, Joshua M. Thurman, Johanna M. Mennona, John W. Kappler, Philippa Marrack
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Research Article Autoimmunity Immunology

B cells expressing the transcription factor T-bet drive lupus-like autoimmunity

Abstract

B cells contribute to multiple aspects of autoimmune disorders and may play a role in triggering disease. Thus, targeting B cells may be a promising strategy for treating autoimmune disorders. Better understanding of the B cell subsets that are responsible for the development of autoimmunity will be critical for developing efficient therapies. Here we have reported that B cells expressing the transcription factor T-bet promote the rapid appearance of autoantibodies and germinal centers in spontaneous murine models of systemic lupus erythematosus (SLE). Conditional deletion of T-bet from B cells impaired the formation of germinal centers and mitigated the development of kidney damage and rapid mortality in SLE mice. B cell–specific deletion of T-bet was also associated with lower activation of both B cells and T cells. Taken together, our results suggest that targeting T-bet–expressing B cells may be a potential target for therapy for autoimmune diseases.

Authors

Kira Rubtsova, Anatoly V. Rubtsov, Joshua M. Thurman, Johanna M. Mennona, John W. Kappler, Philippa Marrack

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