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Combining TGF-β signal inhibition and connexin43 silencing for iPSC induction from mouse cardiomyocytes.

Scientific reports (2014-12-05)
Ping Dai, Yoshinori Harada, Hitoshi Miyachi, Hideo Tanaka, Satsuki Kitano, Tetsuya Adachi, Tomoyuki Suzuki, Hitoshi Hino, Tetsuro Takamatsu
RESUMEN

The reprogramming of differentiated cells into induced pluripotent stem cells (iPSCs) can be achieved by ectopic expression of defined transcription factors (Oct3/4, Sox2, Klf4 and c-Myc). However, to date, some iPSCs have been generated using viral vectors; thus, unexpected insertional mutagenesis in the target cells would be a potential risk. Here we report reprogramming of siPSCs (gene silencing-induced pluripotent stem cells) from mouse neonatal cardiomyocytes (CMs) by combining TGF-β signal inhibition and connexin43 (Cx43) silencing, and show that siPSCs show pluripotency in vitro and in vivo. Our novel non-insertional mutagenesis technique may provide a means for iPSC generation.

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