Redundant roles for inflammasome receptors NLRP3 and NLRC4 in host defense against Salmonella.
Redundant roles for inflammasome receptors NLRP3 and NLRC4 in host defense against Salmonella.
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DOI:
10.1084/jem.20100257
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发表时间:
2010-08-02
期刊:
影响因子:
--
通讯作者:
Monack DM
中科院分区:
文献类型:
--
作者:
Broz P;Newton K;Lamkanfi M;Mariathasan S;Dixit VM;Monack DM
Intracellular pathogens and endogenous danger signals in the cytosol engage NOD-like receptors (NLRs), which assemble inflammasome complexes to activate caspase-1 and promote the release of proinflammatory cytokines IL-1β and IL-18. However, the NLRs that respond to microbial pathogens in vivo are poorly defined. We show that the NLRs NLRP3 and NLRC4 both activate caspase-1 in response to Salmonella typhimurium. Responding to distinct bacterial triggers, NLRP3 and NLRC4 recruited ASC and caspase-1 into a single cytoplasmic focus, which served as the site of pro–IL-1β processing. Consistent with an important role for both NLRP3 and NLRC4 in innate immune defense against S. typhimurium, mice lacking both NLRs were markedly more susceptible to infection. These results reveal unexpected redundancy among NLRs in host defense against intracellular pathogens in vivo.
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DOI:
10.4049/jimmunol.0802367
发表时间:
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期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
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DOI:
10.4049/jimmunol.0901323
发表时间:
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期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
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