Author: ["Carolyn G King","Takashi Kobayashi","Pedro J Cejas","Taesoo Kim","Kwiyeom Yoon","Gregory K Kim","Elise Chiffoleau","Somia P Hickman","Patrick T Walsh","Laurence A Turka","Yongwon Choi"]
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Abstract
TRAF6 has a key role in the regulation of innate immune responses by mediating signals from both TNF receptor and interleukin-1 receptor/Toll-like receptor superfamilies. Here we show that T cell–specific deletion of TRAF6 unexpectedly results in multiorgan inflammatory disease. TRAF6-deficient T cells exhibit hyperactivation of the phosphatidylinositol 3-kinase (PI3K)-Akt pathway compared with wild-type T cells and, as a result, become resistant to suppression by CD4+CD25+ regulatory T cells. These data identify a previously unrecognized role for TRAF6 in the maintenance of peripheral tolerance, and suggest the presence of a T cell–intrinsic control mechanism to render responder T cells susceptible to tolerizing signals.Cite this article
King, C., Kobayashi, T., Cejas, P. et al. TRAF6 is a T cell–intrinsic negative regulator required for the maintenance of immune homeostasis. Nat Med 12, 1088–1092 (2006). https://doi.org/10.1038/nm1449 