... Plasmid Collections Plasmids for Stem Cell Research Plasmids for Stem Cell Research...Reprogramming Plasmids Differentiation and Transdifferentiation Plasmids Stem Cell Research Plasmids Stem cells...Lentivirus Human Expression of human Sox2, Nanog, Oct4, and Lin28 from four separate lentiviral plasmids Induced...Minicircle Human Non-integrating mini-intronic plasmid (MIP) polycistronic expression of human Oct4, Klf4...Retrovirus Human Yamanaka factors for generating human iPS cells; retroviral expression of human Sox2, Oct3...(5):861-72. Yamanaka Plasmid Human Non-integrating transient expression of human L-Myc, Lin28, Sox2, Klf4...Replicating EBNA1 episome Human Non-integrating EBNA1-mediated polycistronic expression of human Sox2, KLF4,...