First Author | Nagashima H | Year | 2014 |
Journal | Nat Immunol | Volume | 15 |
Issue | 5 | Pages | 449-56 |
PubMed ID | 24681564 | Mgi Jnum | J:209978 |
Mgi Id | MGI:5569197 | Doi | 10.1038/ni.2863 |
Citation | Nagashima H, et al. (2014) The adaptor TRAF5 limits the differentiation of inflammatory CD4(+) T cells by antagonizing signaling via the receptor for IL-6. Nat Immunol 15(5):449-56 |
abstractText | The physiological functions of members of the tumor-necrosis factor (TNF) receptor (TNFR)-associated factor (TRAF) family in T cell immunity are not well understood. We found that in the presence of interleukin 6 (IL-6), naive TRAF5-deficient CD4(+) T cells showed an enhanced ability to differentiate into the TH17 subset of helper T cells. Accordingly, TH17 cell-associated experimental autoimmune encephalomyelitis (EAE) was greatly exaggerated in Traf5(-/-) mice. Although it is normally linked with TNFR signaling pathways, TRAF5 constitutively associated with a cytoplasmic region in the signal-transducing receptor gp130 that overlaps with the binding site for the transcription activator STAT3 and suppressed the recruitment and activation of STAT3 in response to IL-6. Our results identify TRAF5 as a negative regulator of the IL-6 receptor signaling pathway that limits the induction of proinflammatory CD4(+) T cells that require IL-6 for their development. |