Tuft cells, taste-chemosensory cells, orchestrate parasite type 2 immunity in the gut.

Tuft cells, taste-chemosensory cells, orchestrate parasite type 2 immunity in the gut.
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簇细胞,味觉化学细胞,在肠道中编排寄生虫2型免疫力。

DOI:
10.1126/science.aaf1648
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发表时间:
2016-03-18
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Garrett WS
Garrett WS
中科院分区:
其他
文献类型:
--
作者:
Howitt MR;Lavoie S;Michaud M;Blum AM;Tran SV;Weinstock JV;Gallini CA;Redding K;Margolskee RF;Osborne LC;Artis D;Garrett WS

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肠上皮形成宿主与其微生物群之间的基本屏障。原生动物和蠕虫是哺乳动物(包括人类)肠道微生物群的成员,但肠道上皮细胞对这些真核生物的反应的许多方式仍不清楚。在这里,我们表明,簇细胞,这是味觉化学感受上皮细胞,积累寄生虫定植和感染。通过TRMP 5的缺失破坏化学感受信号传导消除了寄生虫定殖期间簇状细胞、杯状细胞、嗜酸性粒细胞和2型先天性淋巴样细胞的扩增。簇状细胞是寄生虫诱导的细胞因子白细胞介素-25的主要来源,其通过促进先天淋巴细胞产生白细胞介素-13来间接诱导簇状细胞扩增。我们的研究结果确定肠簇细胞作为关键的哨兵在肠道上皮细胞,促进2型免疫反应肠道寄生虫。
The intestinal epithelium forms an essential barrier between a host and its microbiota. Protozoa and helminths are members of the gut microbiota of mammals, including humans, yet the many ways that gut epithelial cells orchestrate responses to these eukaryotes remain unclear. Here we show that tuft cells, which are taste-chemosensory epithelial cells, accumulate during parasite colonization and infection. Disruption of chemosensory signaling through the loss of TRMP5 abrogates the expansion of tuft cells, goblet cells, eosinophils, and type 2 innate lymphoid cells during parasite colonization. Tuft cells are the primary source of the parasite-induced cytokine interleukin-25, which indirectly induces tuft cell expansion by promoting interleukin-13 production by innate lymphoid cells. Our results identify intestinal tuft cells as critical sentinels in the gut epithelium that promote type 2 immunity in response to intestinal parasites.
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