Fig. 6From: Fabrication of chitosan-polyvinyl alcohol and silk electrospun fiber seeded with differentiated keratinocyte for skin tissue regeneration in animal wound modelMorphology of seeded stem cells isolated from mice on day 0 and differentiated mesenchymal stem cells to keratinocyte type on day 18 in differentiating media. b Flow cytometry histograms of MSCs stained with fluorescein conjugated antibody. Black: without staining; red: stained cells (c) Expression of keratinocyte proteins including cytokeratin-19 (CK-19), involucrin (IVL) and vimentin (vim) after 18 days in differentiating media for MSC-derived keratinocytes, mice foreskin-derived keratinocytes as a positive control and MSCs in conventional culture medium. Nuclei were counterstained with DAPIBack to article page