The E3 ubiquitin ligase TRIM31 attenuates NLRP3 inflammasome activation by promoting proteasomal degradation of NLRP3.
The E3 ubiquitin ligase TRIM31 attenuates NLRP3 inflammasome activation by promoting proteasomal degradation of NLRP3.
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E3 泛素连接酶 TRIM31 通过促进 NLRP3 的蛋白酶体降解来减弱 NLRP3 炎症小体的激活
DOI:
10.1038/ncomms13727
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发表时间:
2016-12-08
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
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作者:
The NLRP3 inflammasome has a fundamental role in host defence against microbial pathogens and its deregulation may cause diverse inflammatory diseases. NLRP3 protein expression is a rate-limiting step for inflammasome activation, thus its expression must be tightly controlled to maintain immune homeostasis and avoid detrimental effects. However, how NLRP3 expression is regulated remains largely unknown. In this study, we identify E3 ubiquitin ligase TRIM31 as a feedback suppressor of NLRP3 inflammasome. TRIM31 directly binds to NLRP3, promotes K48-linked polyubiquitination and proteasomal degradation of NLRP3. Consequently, TRIM31 deficiency enhances NLRP3 inflammasome activation and aggravates alum-induced peritonitis in vivo. Furthermore, TRIM31 deficiency attenuates the severity of dextran sodium sulfate (DSS)-induced colitis, an inflammatory bowel diseases model in which NLRP3 possesses protective roles. Thus, our research describes a mechanism by which TRIM31 limits NLRP3 inflammasome activity under physiological conditions and suggests TRIM31 as a potential therapeutic target for the intervention of NLRP3 inflammasome related diseases. The NLRP3 inflammasome controls the response of the host to pathogens; precise regulation is required to limit autoimmune diseases. Here, the authors identify the E3 ligase TRIM31 that aids the ubiquitin-mediated proteasomal degradation of NLRP3, which may be a therapeutic target for alleviating disease.
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影响因子:
29.7
作者:
Davis BK;Wen H;Ting JP
通讯作者:
Ting JP
影响因子:
3.8
作者:
Choi AJ;Ryter SW
通讯作者:
Ryter SW
影响因子:
32.4
作者:
Duong, Bao H.;Onizawa, Michio;Oses-Prieto, Juan A.;Advincula, Rommel;Burlingame, Alma;Malynn, Barbara A.;Ma, Averil
通讯作者:
Ma, Averil
DOI:
10.4049/jimmunol.1202737
发表时间:
2013-01-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
He Y;Franchi L;Núñez G
通讯作者:
Núñez G
DOI:
10.1084/jem.20100050
发表时间:
2010-05-10
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Allen IC;TeKippe EM;Woodford RM;Uronis JM;Holl EK;Rogers AB;Herfarth HH;Jobin C;Ting JP
通讯作者:
Ting JP