CD4 derived double negative T cells prevent the development and progression of nonalcoholic steatohepatitis.

CD4 derived double negative T cells prevent the development and progression of nonalcoholic steatohepatitis.
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CD4 衍生的双阴性 T 细胞可预防非酒精性脂肪性肝炎的发生和进展。

DOI:
10.1038/s41467-021-20941-x
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发表时间:
2021-01-28
影响因子:
16.6
通讯作者:
Zhang D
Zhang D
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Sun G;Zhao X;Li M;Zhang C;Jin H;Li C;Liu L;Wang Y;Shi W;Tian D;Xu H;Tian Y;Wu Y;Liu K;Zhang Z;Zhang D

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肝脏炎症是NASH发生和发展的驱动力。针对炎症的治疗被认为是有益的。在这项研究中,过继转移CD 4 + T细胞转化的双阴性T细胞(cDNT)保护小鼠免受饮食诱导的肝脏脂肪积累、小叶炎症和局灶性坏死。cDNT选择性抑制肝脏浸润性Th 17细胞和促炎性M1巨噬细胞。M2巨噬细胞分泌的IL-10降低cDNT的存活和功能,以保护M2巨噬细胞免受cDNT介导的溶解。NKG 2A是一种细胞抑制分子,参与了IL-10诱导的细胞凋亡并减弱了cDNT的抑制功能。总之,离体产生的cDNT在饮食诱导的肥胖、2型糖尿病和NASH中发挥有效的保护作用。治疗效果的改善是由于对肝脏炎症细胞的抑制作用。这项研究支持了可能利用这种基于自体免疫细胞的疗法治疗NASH的概念和可行性。肝脏炎症有助于非酒精性脂肪性肝炎(NASH)的发展。在这里,作者表明,在小鼠模型中,通过抑制炎性Th 17细胞和M1巨噬细胞,转移离体产生的CD 4衍生的双阴性T细胞可以预防NASH的发展和进展。
Hepatic inflammation is the driving force for the development and progression of NASH. Treatment targeting inflammation is believed to be beneficial. In this study, adoptive transfer of CD4+ T cells converted double negative T cells (cDNT) protects mice from diet-induced liver fat accumulation, lobular inflammation and focal necrosis. cDNT selectively suppress liver-infiltrating Th17 cells and proinflammatory M1 macrophages. IL-10 secreted by M2 macrophages decreases the survival and function of cDNT to protect M2 macrophages from cDNT-mediated lysis. NKG2A, a cell inhibitory molecule, contributes to IL-10 induced apoptosis and dampened suppressive function of cDNT. In conclusion, ex vivo-generated cDNT exert potent protection in diet induced obesity, type 2 diabetes and NASH. The improvement of outcome is due to the inhibition on liver inflammatory cells. This study supports the concept and the feasibility of potentially utilizing this autologous immune cell-based therapy for the treatment of NASH. Hepatic inflammation contributes to the development of nonalcoholic steatohepatitis (NASH). Here, the authors show that a transfer of ex vivo generated CD4 derived double negative T cells can prevent the development and progression of NASH by suppression of inflammatory Th17 cells and M1 macrophages in mouse models.
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