详细信息:The STEMCCA Cre-Excisable Constitutive Polycistronic (OKSM) Lentivirus Kit contains high titer polycistronic (OKSM) lentivirus and Polybrene transfection reagent that have been validated for the generation of mouse and human induced pluripotent stem cells from mouse embryonic fibroblasts (MEFs) and human foreskin fibroblasts (HFFs), respectively. The Cre-excisable STEMCCA vector, comprised of the transcription factors Oct-4, Klf4, SOX-2, and c-Myc (OKSM) separated by the self-cleaving 2A peptide and IRES sequences, includes flanking LoxP sites that enable Cre-mediated excision of the vector following reprogramming (Sommer CA, 2009).
The use of a single polycistronic lentiviral vector significantly improves reprogramming efficiencies and reduces the number of viral integrations. Furthermore, the ability to remove the reprogramming vector has been shown to improve the developmental potential of iPS cells and significantly increase their capacity to undergo directed differentiation in vitro (Sommer CA, 2010).
