Potential of hepatogenic differentiation of cultured PDSCs by placental extract proteins. (A) ICG up‐taken PDSCs were observed to be green in colour in hepatogenic induced PDSCs after differentiation in cultured PDSCs by FBS (a), PEP‐A (b), PEP‐B (c) and PEP‐C (d). (B) After hepatogenic differentiation, glycogen deposition in cultured PDSCs by FBS (a), PEP‐A (b), PEP‐B (c), and PEP‐C (d) stained by PAS. (C) Urea production of cultured PDSCs by placental extract depended on hepatogenic differentiation (×200 original magnification).