Galactosaminogalactan activates the inflammasome to provide host protection.
Galactosaminogalactan activates the inflammasome to provide host protection.
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半乳糖氨基半乳糖激活炎症小体,提供宿主保护。
DOI:
10.1038/s41586-020-2996-z
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发表时间:
2020-12
期刊:
影响因子:
64.8
通讯作者:
Kanneganti TD
中科院分区:
文献类型:
--
作者:
Briard B;Fontaine T;Samir P;Place DE;Muszkieta L;Malireddi RKS;Karki R;Christgen S;Bomme P;Vogel P;Beau R;Mellado E;Ibrahim-Granet O;Henrissat B;Kalathur RC;Robinson C;Latgé JP;Kanneganti TD
Inflammasomes are important sentinels of innate immune defense activated in response to diverse stimuli, including pathogen-associated molecular patterns (PAMPs). Activation of the inflammasome provides host defense against aspergillosis, a major health concern for immunocompromised patients; however, the Aspergillus fumigatus PAMPs responsible for inflammasome activation are not known. Here we discovered that A. fumigatus galactosaminogalactan (GAG) is a novel PAMP that activates the NLRP3 inflammasome. Binding of GAG to ribosomal proteins inhibited cellular translation machinery, thereby activating the NLRP3 inflammasome. The galactosamine moiety bound to ribosomal proteins and blocked cellular translation, triggering NLRP3 inflammasome activation. In mice, a GAG-deficient Aspergillus mutant Δgt4c failed to elicit protective inflammasome activation and exhibited enhanced virulence. Moreover, administration of GAG protected mice from DSS-induced colitis in an inflammasome-dependent manner. Thus, ribosomes connect sensing of this fungal PAMP to activation of an innate immune response.
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影响因子:
64.5
作者:
Karki R;Lee E;Place D;Samir P;Mavuluri J;Sharma BR;Balakrishnan A;Malireddi RKS;Geiger R;Zhu Q;Neale G;Kanneganti TD
通讯作者:
Kanneganti TD
影响因子:
8.7
作者:
Man SM;Karki R;Kanneganti TD
通讯作者:
Kanneganti TD
影响因子:
4.6
作者:
Man SM;Karki R;Briard B;Burton A;Gingras S;Pelletier S;Kanneganti TD
通讯作者:
Kanneganti TD
影响因子:
32.4
作者:
Bronner DN;Abuaita BH;Chen X;Fitzgerald KA;Nuñez G;He Y;Yin XM;O'Riordan MX
通讯作者:
O'Riordan MX
DOI:
10.1038/ismej.2017.32
发表时间:
2017-07
期刊:
The ISME journal
影响因子:
--
作者:
Briard B;Rasoldier V;Bomme P;ElAouad N;Guerreiro C;Chassagne P;Muszkieta L;Latgé JP;Mulard L;Beauvais A
通讯作者:
Beauvais A