Antigen-specific Treg cells induce infectious tolerance

IF 40 1区 医学 Q1 ENDOCRINOLOGY & METABOLISM
Olivia Tysoe
{"title":"Antigen-specific Treg cells induce infectious tolerance","authors":"Olivia Tysoe","doi":"10.1038/s41574-025-01182-0","DOIUrl":null,"url":null,"abstract":"<p>Regulatory T (T<sub>reg</sub>) cells can induce immune tolerance, making T<sub>reg</sub> cellular therapy a promising strategy to prevent autoimmunity. Clinical trials of T<sub>reg</sub> cell therapies so far have shown limited efficacy, probably due to the use of polyclonal T<sub>reg</sub> cells, which lack antigen specificity. A study in <i>Science Translational Medicine</i> demonstrates that T<sub>reg</sub> cells expressing a chimeric antigen receptor (CAR) specific to the HLA-A2 antigen (A2-CAR T<sub>reg</sub> cells) were able to induce persistent tolerance in a mouse model of type 1 diabetes mellitus.</p><p>Mice injected with BDC2.5 T<sub>eff</sub> cells alone experienced hyperglycaemia and autoimmune destruction of both the transplanted and native islets. Of the mice co-treated with A2-CAR T<sub>reg</sub> cells, 82% were protected from hyperglycaemia, compared with only 33% of mice treated with BDC2.5 T<sub>eff</sub> cells plus polyclonal T<sub>reg</sub> cells. As expected, the A2-CAR T<sub>reg</sub> cells prevented the autoimmune destruction of the transplanted HLA-A2<sup>+</sup> islet graft. Surprisingly, however, HLA-A2<sup>−</sup> islets in the pancreas were also protected, which suggests that the A2-CAR T<sub>reg</sub> cells had induced systemic tolerance even without the HLA-A2 antigen.</p>","PeriodicalId":18916,"journal":{"name":"Nature Reviews Endocrinology","volume":"20 1","pages":""},"PeriodicalIF":40.0000,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Reviews Endocrinology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1038/s41574-025-01182-0","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENDOCRINOLOGY & METABOLISM","Score":null,"Total":0}
引用次数: 0

Abstract

Regulatory T (Treg) cells can induce immune tolerance, making Treg cellular therapy a promising strategy to prevent autoimmunity. Clinical trials of Treg cell therapies so far have shown limited efficacy, probably due to the use of polyclonal Treg cells, which lack antigen specificity. A study in Science Translational Medicine demonstrates that Treg cells expressing a chimeric antigen receptor (CAR) specific to the HLA-A2 antigen (A2-CAR Treg cells) were able to induce persistent tolerance in a mouse model of type 1 diabetes mellitus.

Mice injected with BDC2.5 Teff cells alone experienced hyperglycaemia and autoimmune destruction of both the transplanted and native islets. Of the mice co-treated with A2-CAR Treg cells, 82% were protected from hyperglycaemia, compared with only 33% of mice treated with BDC2.5 Teff cells plus polyclonal Treg cells. As expected, the A2-CAR Treg cells prevented the autoimmune destruction of the transplanted HLA-A2+ islet graft. Surprisingly, however, HLA-A2 islets in the pancreas were also protected, which suggests that the A2-CAR Treg cells had induced systemic tolerance even without the HLA-A2 antigen.

抗原特异性Treg细胞诱导感染性耐受
调节性T (Treg)细胞可以诱导免疫耐受,使Treg细胞治疗成为预防自身免疫的一种很有前途的策略。迄今为止,Treg细胞疗法的临床试验显示疗效有限,可能是由于使用的多克隆Treg细胞缺乏抗原特异性。《科学转化医学》杂志的一项研究表明,在1型糖尿病小鼠模型中,表达HLA-A2抗原特异性嵌合抗原受体(CAR)的Treg细胞(A2-CAR Treg细胞)能够诱导持久耐受性。单独注射BDC2.5 Teff细胞的小鼠出现了高血糖和移植和天然胰岛的自身免疫破坏。在与A2-CAR Treg细胞共同治疗的小鼠中,82%的小鼠免受高血糖的影响,而与BDC2.5 Teff细胞加多克隆Treg细胞治疗的小鼠中只有33%的小鼠受到保护。正如预期的那样,A2-CAR Treg细胞阻止了移植的HLA-A2+胰岛移植物的自身免疫破坏。然而,令人惊讶的是,胰腺中的HLA-A2−胰岛也受到保护,这表明即使没有HLA-A2抗原,A2-CAR Treg细胞也能诱导全身耐受。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Nature Reviews Endocrinology
Nature Reviews Endocrinology 医学-内分泌学与代谢
CiteScore
42.00
自引率
0.70%
发文量
158
审稿时长
6-12 weeks
期刊介绍: Nature Reviews Endocrinology aspires to be the foremost platform for reviews and commentaries catering to the scientific communities it serves. The journal aims to publish articles characterized by authority, accessibility, and clarity, enhanced with easily understandable figures, tables, and other visual aids. The goal is to offer an unparalleled service to authors, referees, and readers, striving to maximize the usefulness and impact of each article. Nature Reviews Endocrinology publishes Research Highlights, Comments, News & Views, Reviews, Consensus Statements, and Perspectives relevant to researchers and clinicians in the fields of endocrinology and metabolism. Its broad scope ensures that the work it publishes reaches the widest possible audience.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信