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首页> 外文期刊>Cell biology international. >A potential model for studying the plasticity and reprogramming of human epidermal stem cells through preimplantation blastocyst microinjection.
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A potential model for studying the plasticity and reprogramming of human epidermal stem cells through preimplantation blastocyst microinjection.

机译:通过植入前胚泡显微注射研究人表皮干细胞的可塑性和重编程的潜在模型。

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Microinjection of adult stem cells (ASCs) into blastocysts provides a classic model for studying ASC plasticity. To explore the molecular mechanisms that govern the reprogramming of ASCs, we evaluated the experimental model through microinjection of human epidermal stem cells (hEpiSCs) into mouse blastocysts. Mouse blastocysts underwent regular embryogenesis after microinjection of allogeneic cells, confirmed by morphological observation and embryo cell counting. hEpiSCs survive and integrate into mouse embryos, by monitoring the migration of injected cells at 2, 4, 12, 16 and 24 h. In this xenogeneic system, hEpiSCs could be reprogrammed within 24 h, as evidenced by the silencing of CK15 and Integrin beta 1 gene expression, without activation of Oct4 and Nanog. Microinjection of hEpiSCs into mouse blastocysts provides an efficient model for studying the molecular mechanisms of their plasticity. Moreover, the possibility of inducing pluripotent stem cells without transgenes or viruses can be entertained.
机译:将成体干细胞(ASC)显微注射到胚泡中提供了研究ASC可塑性的经典模型。为了探索控制ASC重新编程的分子机制,我们通过将人表皮干细胞(hEpiSCs)显微注射到小鼠胚泡中来评估实验模型。显微观察和胚胎细胞计数证实,同种异体细胞显微注射后,小鼠胚泡定期进行胚胎发生。通过在2、4、12、16和24小时监控注入的细胞的迁移,hEpiSCs可以存活并整合到小鼠胚胎中。在这种异种系统中,hEpiSCs可以在24小时内重新编程,这可以通过CK15和整合素β1基因表达的沉默来证明,而无需激活Oct4和Nanog。将hEpiSCs显微注射到小鼠胚泡中提供了研究其可塑性的分子机制的有效模型。此外,可以考虑诱导没有转基因或病毒的多能干细胞的可能性。

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