hESC-derived immune suppressive dendritic cells induce immune tolerance of parental hESC-derived allografts.

hESC-derived immune suppressive dendritic cells induce immune tolerance of parental hESC-derived allografts.
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hESC 衍生的免疫抑制树突状细胞诱导亲本 hESC 衍生同种异体移植物的免疫耐受

DOI:
10.1016/j.ebiom.2020.103120
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发表时间:
2020-12
期刊:
影响因子:
11.1
通讯作者:
Xu Y
Xu Y
中科院分区:
医学1区
文献类型:
--
作者:
Todorova D;Zhang Y;Chen Q;Liu J;He J;Fu X;Xu Y

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人类胚胎干细胞(human embryonic stem cells,hESCs)具有无限自我更新的内在能力和分化为三胚层功能细胞的独特潜能,在再生医学领域具有巨大的潜力。应用基于hESC的细胞疗法的主要挑战是hESC衍生的同种异体移植物的同种异体免疫排斥。我们从野生型和CTLA 4-IG/PD-L1敲入的hESC衍生树突状细胞样细胞(DCL),表示WT DCL和CP DCL。评价DC相关基因和表面分子的表达,以及它们体外刺激同种异体T细胞和诱导调节性T(Treg)细胞的DCL能力。使用免疫系统人源化小鼠模型,我们研究了CP DCL的过继转移是否可以诱导亲本hESC衍生的平滑肌和心肌细胞同种异体移植物的长期免疫耐受。CP DCL可以在强烈的炎症刺激后维持免疫抑制特性并诱导Treg细胞。虽然CP DCL在体内短暂存活,但它们诱导亲本hESC衍生的同种异体移植物的长期免疫耐受。该策略不引起全身性免疫抑制,但诱导对DCL特异性HLA特异性的免疫耐受,因此它提供了一种安全有效的方法来诱导来自任何临床批准的hESC系的同种异体移植物的免疫耐受。国家自然科学基金广东省领军人才项目(编号00201516),广东省重点研发计划(2019 B 020235003)深圳市科技创新委员会(JCYJ 20180504170301309),国家高新技术研发计划项目(863计划编号2015 AA 020310),深圳市医药“三明”项目深圳市发展和改革委员会(S2016004730009)、中国资源管理协会(DISC 2 -10559)。
With their inherent capability of unlimited self-renewal and unique potential to differentiate into functional cells of the three germ layers, human embryonic stem cells (hESCs) hold great potential in regenerative medicine. A major challenge in the application of hESC-based cell therapy is the allogeneic immune rejection of hESC-derived allografts. We derived dendritic cell-like cells (DCLs) from wild type and CTLA4-Ig/PD-L1 knock-in hESCs, denoted WT DCLs and CP DCLs. The expression of DC-related genes and surface molecules was evaluated, as well as their DCL capacity to stimulate allogeneic T cells and induce regulatory T (Treg) cells in vitro. Using an immune system humanized mouse model, we investigated whether the adoptive transfer of CP DCLs can induce long-term immune tolerance of parental hESC-derived smooth muscle and cardiomyocyte allografts. CP DCLs can maintain immune suppressive properties after robust inflammatory stimulation and induce Treg cells. While CP DCLs survive transiently in vivo, they induce long-term immune tolerance of parental hESC-derived allografts. This strategy does not cause systemic immune suppression but induces immune tolerance specific for DCL-specific HLAs, and thus it presents a safe and effective approach to induce immune tolerance of allografts derived from any clinically approved hESC line. NSFC, leading talents of Guangdong Province Program (No. 00201516), Key R&D Program of Guangdong Province (2019B020235003), Science and Technology Innovation Committee of Shenzhen Municipality (JCYJ20180504170301309), National High-tech R&D Program (863 Program No. 2015AA020310), Shenzhen “Sanming” Project of Medicine (SZSM201602102), Development and Reform Commission of Shenzhen Municipality (S2016004730009), CIRM (DISC2–10559).
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发表时间: 2013-08
期刊: American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons
影响因子: --
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