Cutting edge: resistance to Bacillus anthracis infection mediated by a lethal toxin sensitive allele of Nalp1b/Nlrp1b.
Cutting edge: resistance to Bacillus anthracis infection mediated by a lethal toxin sensitive allele of Nalp1b/Nlrp1b.
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尖端:对NALP1B/NLRP1B的致命毒素敏感等位基因介导的对炭疽芽孢杆菌感染的抗性。
DOI:
10.4049/jimmunol.0903114
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发表时间:
2010-01-01
期刊:
影响因子:
--
通讯作者:
Bradley KA
中科院分区:
文献类型:
--
作者:
Terra JK;Cote CK;France B;Jenkins AL;Bozue JA;Welkos SL;LeVine SM;Bradley KA
Pathogenesis of Bacillus anthracis is associated with the production of lethal toxin (LT), which activates the murine Nalp1b/Nlrp1b inflammasome and induces caspase-1-dependent pyroptotic death in macrophages and dendritic cells. Here, we investigated the effect of allelic variation of Nlrp1b on the outcome of LT challenge and infection by B. anthracis spores. Nlrp1b allelic variation did not alter the kinetics or pathology of end stage disease induced by purified LT, suggesting that, in contrast to previous reports, macrophage lysis does not contribute directly to LT-mediated pathology. However, animals expressing LT-sensitive alleles of Nlrp1b showed an early inflammatory response to LT and increased resistance to infection by B. anthracis. Data presented here support a model whereby LT-mediated activation of Nlrp1b and subsequent lysis of macrophages is not a mechanism used by B. anthracis to promote virulence but rather a protective host-mediated innate immune response.
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影响因子:
1.6
作者:
Park, S;Leppla, SH
通讯作者:
Leppla, SH
影响因子:
3.1
作者:
Liao, Kuo-Chieh;Mogridge, Jeremy
通讯作者:
Mogridge, Jeremy
影响因子:
2.8
作者:
Nye, S. H.;Wittenburg, A. L.;Jacob, H. J.
通讯作者:
Jacob, H. J.
DOI:
10.1073/pnas.90.21.10198
发表时间:
1993-11-01
影响因子:
11.1
作者:
HANNA, PC;ACOSTA, D;COLLIER, RJ
通讯作者:
COLLIER, RJ
影响因子:
56.9
作者:
Shao, F;Golstein, C;Innes, RW
通讯作者:
Innes, RW