Induced, but not natural, regulatory T cells retain phenotype and function following exposure to inflamed synovial fibroblasts.

Induced, but not natural, regulatory T cells retain phenotype and function following exposure to inflamed synovial fibroblasts.
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诱导性而非天然的调节性 T 细胞在暴露于发炎的滑膜成纤维细胞后保留表型和功能

DOI:
10.1126/sciadv.abb0606
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发表时间:
2020-10
期刊:
影响因子:
13.6
通讯作者:
Zheng SG
Zheng SG
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Yang S;Zhang X;Chen J;Dang J;Liang R;Zeng D;Zhang H;Xue Y;Liu Y;Wu W;Zhao J;Wang J;Pan Y;Xu H;Sun B;Huang F;Lu Y;Hsueh W;Olsen N;Zheng SG

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当遇到发炎的滑膜成纤维细胞时,诱导的调节性T细胞是表型和功能稳定的。CD 4 + Foxp 3+调节性T细胞(Regulatory T cells,TCRs)数量异常和/或功能异常与类风湿关节炎(RA)的发病机制有关。之前的一项研究表明,胸腺衍生的天然Treg(nTreg)更喜欢在炎症关节中积聚,并在炎症滑液成纤维细胞(SF)的刺激下转分化为TH 17细胞。在这项研究中,我们对两种Treg亚群进行了头对头比较,并证明了诱导的T细胞(iTclad),而不是nTclad,在用发炎的SF引发后保留了T效应细胞(Tefs)上的Foxp 3表达和调节功能。此外,iTibetin在体外和体内抑制胶原诱导的关节炎(CIA)-SF的增殖、炎性细胞因子产生、迁移和侵袭能力。此外,我们注意到,iTsaline直接靶向发炎的SF来治疗自身免疫性关节炎,而nTsaline未能做到这一点。因此,操纵iTreg亚群可能具有更大的预防或治疗RA患者的潜力。
Induced regulatory T cells are phenotypic and functionally stable when encountering inflamed synovial fibroblast. Aberrant number and/or dysfunction of CD4+Foxp3+ Regulatory T cells (Tregs) are associated with the pathogenesis of rheumatoid arthritis (RA). A previous study has demonstrated that thymus-derived, natural Tregs (nTregs) prefer to accumulate in inflamed joints and transdifferentiate to TH17 cells under the stimulation of inflamed synovial fibroblasts (SFs). In this study, we made a head-to-head comparison of both Treg subsets and demonstrated that induced Tregs (iTregs), but not nTregs, retained Foxp3 expression and regulatory function on T effector cells (Teffs) after being primed with inflamed SFs. In addition, iTregs inhibited proliferation, inflammatory cytokine production, migration, and invasion ability of collagen-induced arthritis (CIA)–SFs in vitro and in vivo. Moreover, we noted that iTregs directly targeted inflamed SFs to treat autoimmune arthritis, while nTregs failed to do this. Thus, manipulation of the iTreg subset may have a greater potential for prevention or treatment of patients with RA.
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