TcpC inhibits neutrophil extracellular trap formation by enhancing ubiquitination mediated degradation of peptidylarginine deiminase 4.
TcpC inhibits neutrophil extracellular trap formation by enhancing ubiquitination mediated degradation of peptidylarginine deiminase 4.
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TcpC通过增强泛素化介导的肽基精氨酸脱亚胺酶4降解抑制中性粒细胞胞外陷阱形成。
DOI:
10.1038/s41467-021-23881-8
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发表时间:
2021-06-09
影响因子:
16.6
通讯作者:
Pan JP
中科院分区:
文献类型:
--
作者:
Ou Q;Fang JQ;Zhang ZS;Chi Z;Fang J;Xu DY;Lu KZ;Qian MQ;Zhang DY;Guo JP;Gao W;Zhang NR;Pan JP
TcpC is a multifunctional virulence factor of uropathogenic E. coli (UPEC). Neutrophil extracellular trap formation (NETosis) is a crucial anti-infection mechanism of neutrophils. Here we show the influence of TcpC on NETosis and related mechanisms. We show NETosis in the context of a pyelonephritis mouse model induced by TcpC-secreting wild-type E. coli CFT073 (CFT073wt) and LPS-induced in vitro NETosis with CFT073wt or recombinant TcpC (rTcpC)-treated neutrophils are inhibited. rTcpC enters neutrophils through caveolin-mediated endocytosis and inhibits LPS-induced production of ROS, proinflammatory cytokines and protein but not mRNA levels of peptidylarginine deiminase 4 (PAD4). rTcpC treatment enhances PAD4 ubiquitination and accumulation in proteasomes. Moreover, in vitro ubiquitination kit analyses show that TcpC is a PAD4-targetd E3 ubiquitin-ligase. These data suggest that TcpC inhibits NETosis primarily by serving as an E3 ligase that promotes degradation of PAD4. Our findings provide a novel mechanism underlying TcpC-mediated innate immune evasion. TcpC is a well characterised multifunctional virulence factor expressed by uropathogenic Eschericia coli. Here the authors show that TcpC also targets neutrophil NETosis via its E3 ligase functionality promoting the degradation of PAD4, and represents an additional immune evasion function of this bacterially derived virulence factor.
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影响因子:
44.1
作者:
Hu H;Sun SC
通讯作者:
Sun SC
DOI:
10.1084/jem.20100239
发表时间:
2010-08-30
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Li P;Li M;Lindberg MR;Kennett MJ;Xiong N;Wang Y
通讯作者:
Wang Y
影响因子:
5.7
作者:
Fonseca Z;Díaz-Godínez C;Mora N;Alemán OR;Uribe-Querol E;Carrero JC;Rosales C
通讯作者:
Rosales C
影响因子:
8.8
作者:
Khan I;Steeg PS
通讯作者:
Steeg PS
影响因子:
11.2
作者:
Kuehnle, Andrea;Veelken, Rhea;Galuska, Sebastian P.
通讯作者:
Galuska, Sebastian P.