Caspase-8 modulates dectin-1 and complement receptor 3-driven IL-1β production in response to β-glucans and the fungal pathogen, Candida albicans.
Caspase-8 modulates dectin-1 and complement receptor 3-driven IL-1β production in response to β-glucans and the fungal pathogen, Candida albicans.
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caspase-8可调节dectin-1和补体受体3驱动的IL-1β产生,以响应于β-葡聚糖和真菌病原体念珠菌白色念珠菌。
DOI:
10.4049/jimmunol.1400276
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发表时间:
2014-09-01
期刊:
影响因子:
--
通讯作者:
Fitzgerald KA
中科院分区:
文献类型:
--
作者:
Ganesan S;Rathinam VAK;Bossaller L;Army K;Kaiser WJ;Mocarski ES;Dillon CP;Green DR;Mayadas TN;Levitz SM;Hise AG;Silverman N;Fitzgerald KA
Inflammasomes are central mediators of host defense to a wide range of microbial pathogens. The NLRP3 inflammasome plays a key role in triggering caspase-1 dependent IL-1β maturation and resistance to fungal dissemination in Candida albicans infection. β-glucans are major components of fungal cell walls that trigger IL-1β secretion in both murine and human immune cells. In this study, we sought to determine the contribution of β-glucans to C. albicans-induced inflammasome responses in mouse dendritic cells. We show that the NLRP3-ASC-caspase-1 inflammasome is absolutely critical for IL-1β production in response to β-glucans. Interestingly, we also found that both Complement Receptor 3 (CR3/Mac-1) and dectin-1 play a crucial role in coordinating β-glucan-induced IL-1β processing as well as a cell death response. In addition to the essential role of caspase-1, we identify an important role for the pro-apoptotic protease caspase-8 in promoting β-glucan-induced cell death and NLRP3 inflammasome-dependent IL-1β maturation. A strong requirement for Complement Receptor 3 and caspase-8 was also found for NLRP3 dependent IL-1β production in response to heat killed Candida albicans. Together, these results define the importance of dectin-1, CR3 and caspase-8, in addition to the canonical NLRP3 inflammasome, in mediating β-glucan and C. albicans induced innate responses in dendritic cells. Collectively, these findings establish a novel link between β-glucan recognition receptors and the inflammatory proteases caspase-8 and caspase-1 in coordinating cytokine secretion and cell death in response to immunostimulatory fungal components.
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DOI:
10.4049/jimmunol.1201715
发表时间:
2012-11-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Joly S;Eisenbarth SC;Olivier AK;Williams A;Kaplan DH;Cassel SL;Flavell RA;Sutterwala FS
通讯作者:
Sutterwala FS
DOI:
10.1086/523110
发表时间:
2007-11-15
期刊:
The Journal of infectious diseases
影响因子:
--
作者:
Gow NA;Netea MG;Munro CA;Ferwerda G;Bates S;Mora-Montes HM;Walker L;Jansen T;Jacobs L;Tsoni V;Brown GD;Odds FC;Van der Meer JW;Brown AJ;Kullberg BJ
通讯作者:
Kullberg BJ
影响因子:
4.4
作者:
Jouault, Thierry;Behi, Miryam El Abed-El;Poulain, Daniel
通讯作者:
Poulain, Daniel
影响因子:
4.4
作者:
Beisner, DR;Ch'en, IL;Hedrick, SM
通讯作者:
Hedrick, SM
影响因子:
5.5
作者:
Bromuro, Carla;Romano, Maria;Cassone, Antonio
通讯作者:
Cassone, Antonio