(A) Confocal 10 μm section of stained D10 salispheres cultured in SM [FGF7] for epithelial marker β1 integrin (ITGB1), K5, αSMA, K14, KIT, and/or nuclei (DAPI, blue). Scale bar, 50 μm. (B) FACS analysis (% of cells) of KIT+, FGFR2b+, K5+ and K14+ cells present in D10 SM cultured salispheres. N=3 biological samples. Mean±SEM. (C) Gene expression of human D10 salispheres cultured in SM [FGF7] and BM, normalized to RPS29 and SM D3 (dotted line). *, P<0.05, one-way ANOVA with post-Dunnett test compared to D3, N = 4 biological samples.