Bach2 deficiency leads autoreactive B cells to produce IgG autoantibodies and induce lupus through a T cell-dependent extrafollicular pathway

Autor: Eunkyeong Jang, Un Kyo Kim, Kiseok Jang, Young Soo Song, Ji-Young Cha, Hansol Yi, Jeehee Youn
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Experimental and Molecular Medicine, Vol 51, Iss 12, Pp 1-13 (2019)
Druh dokumentu: article
ISSN: 1226-3613
2092-6413
DOI: 10.1038/s12276-019-0352-x
Popis: Autoimmune disease: Bach2 orchestrates immune function Bach2, a protein that regulates gene expression, is required in the B cells and T cells of the immune system to protect against autoimmune disease. Bach2 deficiency has previously been associated with systemic lupus erythematosus (SLE), but the mechanisms through which it contributes to the development of an immune response against healthy tissue in many parts of the body were unclear. Jeehee Youn at Hanyang University in Seoul, South Korea, and colleagues showed that B cells from mice lacking Bach2 produce self-reactive antibodies and express SLE-related genes. Furthermore, when they specifically deleted Bach2 in T cells, they found that it triggered differentiation into a type of T cell which promoted the maturation of self-reactive B cells. The authors conclude that Bach2 activity in both B cells and T cells is key to maintaining immune self-tolerance.
Databáze: Directory of Open Access Journals
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