期刊
JOURNAL OF AUTOIMMUNITY
卷 94, 期 -, 页码 110-121出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jaut.2018.07.017
关键词
-
类别
资金
- IMB Core Facility
- [TR SFB 128]
NF-kappa B inducing kinase (NIK) is the key protein of the non-canonical NF-kappa B pathway and is important for the development of lymph nodes and other secondary immune organs. We elucidated the specific role of NIK in T cells using T-cell specific NIK-deficient (NIK Delta T) mice. Despite showing normal development of lymphoid organs, NIK Delta T mice were resistant to induction of CNS autoimmunity. T cells from MCAT mice were deficient in late priming, failed to up-regulate T-bet and to transmigrate into the CNS. Proteomic analysis of activated NIK-/.T cells showed de-regulated expression of proteins involved in the formation of the immunological synapse: in particular, proteins involved in cytoskeleton dynamics. In line with this we found that NIK-deficient T cells were hampered in phosphorylation of Zap70, LAT, AKT, ERK1/2 and PLC gamma upon TCR engagement. Hence, our data disclose a hitherto unknown function of NIK in T-cell priming and differentiation.
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