飞速体育cba:EMBO Rep.2015 Apr;16(4):447-55. doi: 10.15252/embr.201439637. Epub 2015 Mar 3.
飞速体育cba:WDFY1mediatesTLR3/4signalingbyrecruitingTRIF.
Hu YH
1,
Zhang Y
1,
Jiang LQ
1,
Wang S
1,
Lei CQ
1,
Sun MS
1,
Shu HB
1,
Liu Y
2.
飞速体育cba:Author information
- 1State Key Laboratory of Virology, Medical Research Institute,College of Life Sciences Wuhan University, Wuhan, China.
- 2State Key Laboratory of Virology, Medical Research Institute,College of Life Sciences Wuhan University, Wuhan, China yuliu@whu.edu.cn.
飞速体育cba:Abstract
Toll-like receptors (TLRs) are pattern recognition receptors that sense a variety of pathogens, initiate innate immune responses, and direct adaptive immunity. All TLRs exceptTLR3recruit the adaptor MyD88 to ultimately elicit inflammatory gene expression, whereasTLR3and internalized TLR4 use TIR-domain-containing adaptorTRIFfor the induction of type I interferon and inflammatory cytokines. Here, we identify the WD repeat and FYVE-domain-containing proteinWDFY1as a crucial adaptor protein in theTLR3/4signalingpathway. Overexpression ofWDFY1potentiatesTLR3- and TLR4-mediated activation of NF-κB, interferon regulatory factor 3 (IRF3), and production of type I interferons and inflammatory cytokines.WDFY1depletion has the opposite effect.WDFY1interacts withTLR3and TLR4 andmediatesthe recruitment ofTRIFto these receptors. Our findings suggest a crucial role forWDFY1in bridging the TLR-TRIFinteraction, which is necessary for TLRsignaling.
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