Group 3 innate lymphoid cells produce the growth factor HB-EGF to protect the intestine from TNF-mediated inflammation.

Group 3 innate lymphoid cells produce the growth factor HB-EGF to protect the intestine from TNF-mediated inflammation.
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3型天然淋巴细胞产生生长因子肝素结合表皮生长因子(HB - EGF),以保护肠道免受肿瘤坏死因子(TNF)介导的炎症侵害。

DOI:
10.1038/s41590-021-01110-0
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发表时间:
2022-03
期刊:
影响因子:
30.5
通讯作者:
Sonnenberg GF
Sonnenberg GF
中科院分区:
医学1区
文献类型:
--
作者:
Zhou L;Zhou W;Joseph AM;Chu C;Putzel GG;Fang B;Teng F;Lyu M;Yano H;Andreasson KI;Mekada E;Eberl G;Sonnenberg GF

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肿瘤坏死因子(TNF)驱动肠道中的慢性炎症和细胞死亡,阻断TNF是炎症性肠病(IBD)的治疗方法。尽管有这些知识,但保护肠道免受TNF影响的途径尚未完全了解。在这里,我们证明,第3组先天淋巴样细胞(ILC 3)保护肠上皮细胞从TNF诱导的细胞死亡。这种情况独立于白细胞介素(IL)-22,而是我们确定ILC 3是肝素结合表皮生长因子样生长因子(HB-EGF)的主要来源。ILC 3响应前列腺素E2(PGE 2)和EP 2受体的接合而产生HB-EGF。缺乏ILC 3衍生的HB-EGF的小鼠表现出对TNF介导的上皮细胞死亡和实验性肠道炎症的易感性增加。最后,人ILC 3产生HB-EGF,并从发炎的肠道中减少。这些结果定义了ILC 3衍生的HB-EGF在保护肠道免受TNF侵害中的重要作用,并表明该途径的破坏有助于IBD。
Tumor necrosis factor (TNF) drives chronic inflammation and cell death in the intestine, and blocking TNF is a therapeutic approach in inflammatory bowel disease (IBD). Despite this knowledge, the pathways that protect the intestine from TNF are incompletely understood. Here we demonstrate that group 3 innate lymphoid cells (ILC3s) protect the intestinal epithelium from TNF-induced cell death. This occurs independent from interleukin (IL)-22, and rather we identify that ILC3s are a dominant source of heparin-binding epidermal growth factor-like growth factor (HB-EGF). ILC3s produce HB-EGF in response to prostaglandin E2 (PGE2) and engagement of the EP2 receptor. Mice lacking ILC3-derived HB-EGF exhibit increased susceptibility to TNF-mediated epithelial cell death and experimental intestinal inflammation. Finally, human ILC3s produce HB-EGF and are reduced from the inflamed intestine. These results define an essential role for ILC3-derived HB-EGF in protecting the intestine from TNF and indicate that disruption of this pathway contributes to IBD.
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