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Derivation and Long-Term Culture of Transgene-Free Human Induced Pluripotent Stem Cells on Synthetic Substrates

机译:合成基质上无转基因人类诱导的多能干细胞的衍生和长期培养

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We describe a platform to derive, culture, and differentiate genomically stable, transgene-free human induced pluripotent stem cells (iPSCs) on a fully synthetic polymer substrate made of a grafted zwitterionic hydrogel: poly2-(methacryloyloxy)ethyl dimethyl-(3-sulfopropyl) ammonium hydroxide (PMEDSAH). Three independent transgene-free iPSC lines derived in these conditions demonstrated continuous self-renewal, genomic stability, and pluripotency in vitro and in vivo after up to 9 months of continuous in vitro culture on PMEDSAH-grafted plates. Together, these data demonstrate the strength this alternative platform offers to generate and maintain human iPSCs for regenerative medicine.
机译:我们描述了一个平台,该平台在由接枝两性离子水凝胶制成的完全合成的聚合物底物上衍生,培养和区分基因组稳定的,无转基因的人类诱导多能干细胞(iPSC):聚2-(甲基丙烯酰氧基)乙基二甲基-(3-磺丙基)氢氧化铵(PMEDSAH)。在这些条件下衍生的三个独立的无转基因iPSC品系在PMEDSAH移植的平板上进行了长达9个月的连续体外培养后,在体外和体内表现出连续的自我更新,基因组稳定性和多能性。这些数据一起证明了该替代平台在生成和维护用于再生医学的人iPSC方面的实力。

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