Enterocyte-innate lymphoid cell crosstalk drives early IFN-γ-mediated control of Cryptosporidium.

Enterocyte-innate lymphoid cell crosstalk drives early IFN-γ-mediated control of Cryptosporidium.
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DOI:
10.1038/s41385-021-00468-6
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发表时间:
2022-03
期刊:
影响因子:
8
通讯作者:
Hunter CA
Hunter CA
中科院分区:
医学1区
文献类型:
--
作者:
Gullicksrud JA;Sateriale A;Engiles JB;Gibson AR;Shaw S;Hutchins ZA;Martin L;Christian DA;Taylor GA;Yamamoto M;Beiting DP;Striepen B;Hunter CA

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The intestinal parasite, Cryptosporidium, is a major contributor to global child mortality and causes opportunistic infection in immune deficient individuals. Innate resistance to Cryptosporidium, which specifically invades enterocytes, is dependent on the production of IFN-γ, yet whether enterocytes contribute to parasite control is poorly understood. In this study, utilizing a mouse-adapted strain of C. parvum, we show that epithelial-derived IL-18 synergized with IL-12 to stimulate innate lymphoid cell (ILC) production of IFN-γ required for early parasite control. The loss of IFN-γ-mediated STAT1 signaling in enterocytes, but not dendritic cells or macrophages, antagonized early parasite control. Transcriptional profiling of enterocytes from infected mice identified an IFN-γ signature and enrichment of the anti-microbial effectors IDO, GBP and IRG. Deletion experiments identified a role for Irgm1/m3 in parasite control. Thus, enterocytes promote ILC production of IFN-γ that acts on enterocytes to restrict the growth of Cryptosporidium.
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