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Allogeneic transplantation of iPS cell-derived cardiomyocytes regenerates primate hearts

机译:iPS细胞衍生的心肌细胞的同种异体移植可再生灵长类动物的心脏

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摘要

Induced pluripotent stem cells (iPSCs) constitute a potential source of autologous patient-specific cardiomyocytes for cardiac repair, providing a major benefit over other sources of cells in terms of immune rejection. However, autologous transplantation has substantial challenges related to manufacturing and regulation. Although major histocompatibility complex (MHC)-matched allogeneic transplantation is a promising alternative strategy(1), few immunological studies have been carried out with iPSCs. Here we describe an allogeneic transplantation model established using the cynomolgus monkey (Macaca fascicularis), the MHC structure of which is identical to that of humans. Fibroblast-derived iPSCs were generated from a MHC haplotype (HT4) homozygous animal and subsequently differentiated into cardiomyocytes (iPSC-CMs). Five HT4 heterozygous monkeys were subjected to myocardial infarction followed by direct intra-myocardial injection of iPSC-CMs. The grafted cardiomyocytes survived for 12 weeks with no evidence of immune rejection in monkeys treated with clinically relevant doses of methylprednisolone and tacrolimus, and showed electrical coupling with host cardiomyocytes as assessed by use of the fluorescent calcium indicator G-CaMP7.09. Additionally, transplantation of the iPSC-CMs improved cardiac contractile function at 4 and 12 weeks after transplantation; however, the incidence of ventricular tachycardia was transiently, but significantly, increased when compared to vehicle-treated controls. Collectively, our data demonstrate that allogeneic iPSC-CM transplantation is sufficient to regenerate the infarcted non-human primate heart; however, further research to control post-transplant arrhythmias is necessary.
机译:诱导的多能干细胞(iPSC)构成了用于心脏修复的自体患者特异性心肌细胞的潜在来源,就免疫排斥而言,它比其他细胞来源具有重要优势。然而,自体移植具有与制造和调节有关的重大挑战。尽管主要的组织相容性复合物(MHC)匹配的同种异体移植是一种有前途的替代策略(1),但对iPSC进行的免疫学研究很少。在这里,我们描述了使用食蟹猴(Macaca fascicularis)建立的同种异体移植模型,其MHC结构与人类的相同。成纤维细胞衍生的iPSC是由MHC单倍型(HT4)纯合动物产生的,然后分化为心肌细胞(iPSC-CM)。对五只HT4杂合猴子进行心肌梗死,然后直接心肌内注射iPSC-CM。在用临床相关剂量的甲基强的松龙和他克莫司治疗的猴子中,移植的心肌细胞存活了12周,没有免疫排斥的迹象,并且通过使用荧光钙指示剂G-CaMP7.09进行了评估,显示与宿主心肌细胞发生电耦合。另外,iPSC-CMs的移植改善了移植后4周和12周的心脏收缩功能。然而,与溶媒治疗的对照组相比,室性心动过速的发生是短暂的,但显着增加。总体而言,我们的数据表明,同种异体iPSC-CM移植足以再生梗死的非人灵长类动物心脏。但是,有必要进一步研究以控制移植后心律失常。

著录项

  • 来源
    《Nature》 |2016年第7625期|388-391|共4页
  • 作者单位

    Shinshu Univ, Inst Biomed Sci, Matsumoto, Nagano 3908621, Japan|Shinshu Univ, Sch Med, Dept Cardiovasc Med, Matsumoto, Nagano 3908621, Japan;

    Shinshu Univ, Sch Med, Dept Cardiovasc Surg, Matsumoto, Nagano 3908621, Japan;

    Shinshu Univ, Sch Med, Dept Cardiovasc Surg, Matsumoto, Nagano 3908621, Japan;

    Shinshu Univ, Sch Med, Dept Cardiovasc Surg, Matsumoto, Nagano 3908621, Japan;

    Shinshu Univ, Sch Med, Dept Cardiovasc Surg, Matsumoto, Nagano 3908621, Japan;

    Shinshu Univ, Sch Med, Dept Cardiovasc Surg, Matsumoto, Nagano 3908621, Japan;

    Shinshu Univ, Sch Med, Dept Cardiovasc Surg, Matsumoto, Nagano 3908621, Japan;

    Shinshu Univ, Sch Med, Dept Cardiovasc Surg, Matsumoto, Nagano 3908621, Japan;

    Shinshu Univ, Sch Med, Dept Pediat, Matsumoto, Nagano 3908621, Japan;

    Ina Res Inc, Ina, Saitama 3994501, Japan;

    Ina Res Inc, Ina, Saitama 3994501, Japan;

    Tokai Univ, Sch Med, Dept Mol Life Sci, Isehara, Kanagawa 2591193, Japan;

    Saitama Univ, Brain Sci Inst, Saitama 3388570, Japan|Saitama Univ, Grad Sch Sci & Engn, Saitama 3388570, Japan;

    Saitama Univ, Brain Sci Inst, Saitama 3388570, Japan|Saitama Univ, Grad Sch Sci & Engn, Saitama 3388570, Japan;

    Tottori Univ, Chromosome Engn Res Ctr, Yonago, Tottori 6838503, Japan;

    Tottori Univ, Chromosome Engn Res Ctr, Yonago, Tottori 6838503, Japan;

    Tottori Univ, Chromosome Engn Res Ctr, Yonago, Tottori 6838503, Japan;

    Kyoto Univ, Inst Integrated Cell Mat Sci WPI iCeMS, Kyoto 6068501, Japan;

    Shinshu Univ, Sch Med, Dept Cardiovasc Med, Matsumoto, Nagano 3908621, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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