Fig 1.
Generation of canine induced pluripotent stem cells (ciPSCs). (A) Schematic diagram of the generation of ciPSCs. ciPSC colonies can be picked out approximately 12–15 days and are alkaline phosphatase-positive. (B) Immunofluorescence staining of pluripotent markers. Similar to cESCs, ciPSCs are positive for pluripotent stem cell markers Oct-4 (b and h), Tra-1-60 (c and i), Nanog (e and k) and SSEA-4 (f and l), with nuclear staining by DAPI (a, d, g and j). (C) Quantitative PCR analysis of expression of pluripotent stem cell markers Oct-4, Nanog, Sox-2, c-Myc and Klf-4. Y-axis value represents fold differences (log2) in expression of select genes. (D) Pearson correlation analysis for gene expression in cASCs, ciPSCs and cESCs using transcripts with SD <0.2 among all samples (17,895 probes, P < 1.0E-15). Reprinted with permission from Lee et al. 2011.