Fig. 5From: Efficient generation of male germ-like cells derived during co-culturing of adipose-derived mesenchymal stem cells with Sertoli cells under retinoic acid and testosterone inductionExamination of TM4 cells after treating with or without retinoic acid and testosterone on day 3. TM4 cells without retinoic acid and testosterone treatment were used as a control (white bar). a Morphologically, TM4 cells treated with RA and T showed fewer dead cells than the untreated group, (scale bar 100 μm). b, c The mRNA and protein expression of FGF2, NRG1, IGFI, TGFβ1, and TGFβ2 in RA- and T-treated TM4 cell is also upregulated than the untreated group. b Relative mRNA expression of cytokines genes by qRT-PCR. c Relative level of protein expression by western blot, quantitative analysis result by image-pro plus software. Y-axis indicates the relative mRNA value normalized to control group TM4 mRNA level. Bar graphs represent mean ± SD (n = 3 per group). Different letters on the bar graph indicate significant differences between the groups at the 0.05 level (n = 3)Back to article page