Various methods utilizing viruses, DNA, RNA, miRNA and protein have been developed to generate integration-free induced pluripotent stem cells (iPSCs). Disadvantages to existing methods include: (1) low reprogramming efficiency (i.e. DNA and protein), (2) a lengthy requirement for negative selection and subcloing steps to remove persistent traces of the virus (i.e. Sendai virus)1 and (3) for daily transfections of four individual in vitro generated mRNAs over a 14 day period (i.e. mRNA based)2.
EMD Millipore’s Simplicon RNA Reprogramming Kit is a safe and efficient method to generate integration free, virus-free human iPS cell using a single transfection step. The technology is based upon a positive strand, single-stranded RNA species derived from non-infectious (non-packaging), self-replicating Venezuelian equine encephalitis (VEE) virus3. The Simplicon RNA replicon is a synthetic in vitro transcribed RNA expressing all four reprogramming factors (OKS-iG; Oct4, Klf4, Sox2 and Glis1) in a polycistronic transcript that is able to self-replicate for a limited number of cell divisions. View our Application Note!
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