首页> 外文期刊>Cell metabolism >Beta Cell Dedifferentiation Induced by IRE1 alpha Deletion Prevents Type 1 Diabetes
【24h】

Beta Cell Dedifferentiation Induced by IRE1 alpha Deletion Prevents Type 1 Diabetes

机译:IS1α缺失诱导的β细胞消除剂可防止1型糖尿病

获取原文
获取原文并翻译 | 示例
           

摘要

Immune-mediated destruction of insulin-producing beta cells causes type 1 diabetes (T1D). However, how beta cells participate in their own destruction during the disease process is poorly understood. Here, we report that modulating the unfolded protein response (UPR) in beta cells of non-obese diabetic (NOD) mice by deleting the UPR sensor IRE1 alpha prior to insulitis induced a transient dedifferentiation of beta cells, resulting in substantially reduced islet immune cell infiltration and beta cell apoptosis. Single-cell and whole-islet transcriptomics analyses of immature beta cells revealed remarkably diminished expression of beta cell autoantigens and MHC class I components, and upregulation of immune inhibitory markers. IRE1 alpha-deficient mice exhibited significantly fewer cytotoxic CD8 T cells in their pancreata, and adoptive transfer of their total T cells did not induce diabetes in Rag1(-/-) mice. Our results indicate that inducing beta cell dedifferentiation, prior to insulitis, allows these cells to escape immune-mediated destruction and may be used as a novel preventive strategy for T1 D in high-risk individuals.
机译:免疫介导的胰岛素的β细胞破坏引起1型糖尿病(T1D)。然而,在疾病过程中,β细胞在自己的破坏中如何参与自己的破坏。这里,我们通过删除紫外线之前通过删除UPR传感器IRE1α在胰岛炎之前通过缺陷诱导β细胞的瞬时消退,调节展开蛋白响应(NOOD)小鼠的展开蛋白响应(UPR),导致胰岛素显着降低的胰岛免疫细胞浸润和β细胞凋亡。未成熟的β细胞的单细胞和全胰岛转录组织分析显示β细胞自身抗原和MHC I类组分的表达显着减少,以及免疫抑制标志物的上调。 IS1α缺陷小鼠在它们的胰腺中表现出显着更少的细胞毒性CD8 T细胞,并且在RAG1( - / - )小鼠中,它们的总T细胞的养态不会诱导糖尿病。我们的研究结果表明,在云炎之前,诱导β细胞消除剂允许这些细胞逃避免疫介导的破坏,并且可以用作高危人中的T1 D的新型预防策略。

著录项

  • 来源
    《Cell metabolism》 |2020年第4期|共20页
  • 作者单位

    Univ Wisconsin Sch Med &

    Publ Hlth Dept Biomol Chem Madison WI 53706 USA;

    Univ Wisconsin Sch Med &

    Publ Hlth Dept Biomol Chem Madison WI 53706 USA;

    Univ Wisconsin Sch Med &

    Publ Hlth Dept Biomol Chem Madison WI 53706 USA;

    Wisconsin Inst Discovery Dept Cell &

    Regenerat Biol Madison WI 53706 USA;

    Univ Wisconsin Sch Med &

    Publ Hlth Dept Biomol Chem Madison WI 53706 USA;

    Univ Wisconsin Sch Med &

    Publ Hlth Dept Biomol Chem Madison WI 53706 USA;

    Univ Wisconsin Sch Med &

    Publ Hlth Dept Biomol Chem Madison WI 53706 USA;

    Univ Wisconsin Sch Med &

    Publ Hlth Dept Biomol Chem Madison WI 53706 USA;

    Med Coll Wisconsin Dept Microbiol &

    Immunol Milwaukee WI 53226 USA;

    Med Coll Wisconsin Dept Microbiol &

    Immunol Milwaukee WI 53226 USA;

    Univ Wisconsin Sch Med &

    Publ Hlth Dept Biostat &

    Med Informat Madison WI 53705 USA;

    Wisconsin Inst Discovery Dept Cell &

    Regenerat Biol Madison WI 53706 USA;

    Univ Wisconsin Sch Med &

    Publ Hlth Dept Biomol Chem Madison WI 53706 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 内分泌腺疾病及代谢病;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号