Phase separation drives RNA virus-induced activation of the NLRP6 inflammasome.
Phase separation drives RNA virus-induced activation of the NLRP6 inflammasome.
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相分离驱动 RNA 病毒诱导的 NLRP6 炎症小体激活
DOI:
10.1016/j.cell.2021.09.032
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发表时间:
2021-11-11
期刊:
影响因子:
64.5
通讯作者:
Wu H
中科院分区:
文献类型:
--
作者:
Shen C;Li R;Negro R;Cheng J;Vora SM;Fu TM;Wang A;He K;Andreeva L;Gao P;Tian Z;Flavell RA;Zhu S;Wu H
NLRP6 is important in host defense by inducing functional outcomes including inflammasome activation and interferon production. Here we show that NLRP6 undergoes liquid-liquid phase separation (LLPS) upon interaction with dsRNA in vitro and in cells, and that an intrinsically disordered poly-lysine sequence (K350–354) of NLRP6 is important for multivalent interactions, phase separation and inflammasome activation. Nlrp6-deficient or Nlrp6K350−354A mutant mice show reduced inflammasome activation upon mouse hepatitis virus or rotavirus infection, and in steady state stimulated by intestinal microbiota, implicating NLRP6 LLPS in anti-microbial immunity. Recruitment of ASC via helical assembly solidifies NLRP6 condensates, and ASC further recruits and activates caspase-1. Lipoteichoic acid, a known NLRP6 ligand, also promotes NLRP6 LLPS, and DHX15, a helicase in NLRP6-induced interferon signaling, co-forms condensates with NLRP6 and dsRNA. Thus, LLPS of NLRP6 is a common response to ligand stimulation, which serves to direct NLRP6 to distinct functional outcomes depending on the cellular context. dsRNA induces phase separation of NLRP6 for inflammasome activation
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影响因子:
6.7
作者:
Ghimire L;Paudel S;Jin L;Baral P;Cai S;Jeyaseelan S
通讯作者:
Jeyaseelan S
影响因子:
14.8
作者:
通讯作者:
--
影响因子:
64.5
作者:
Hara H;Seregin SS;Yang D;Fukase K;Chamaillard M;Alnemri ES;Inohara N;Chen GY;Núñez G
通讯作者:
Núñez G
影响因子:
64.5
作者:
Levy M;Thaiss CA;Zeevi D;Dohnalová L;Zilberman-Schapira G;Mahdi JA;David E;Savidor A;Korem T;Herzig Y;Pevsner-Fischer M;Shapiro H;Christ A;Harmelin A;Halpern Z;Latz E;Flavell RA;Amit I;Segal E;Elinav E
通讯作者:
Elinav E
DOI:
10.1126/science.aas8995
发表时间:
2020-09-18
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Magupalli VG;Negro R;Tian Y;Hauenstein AV;Di Caprio G;Skillern W;Deng Q;Orning P;Alam HB;Maliga Z;Sharif H;Hu JJ;Evavold CL;Kagan JC;Schmidt FI;Fitzgerald KA;Kirchhausen T;Li Y;Wu H
通讯作者:
Wu H