Fluorescence microscope image showed that stem cells differentiate to hepatocyte and express the albumin in 2 weeks after HGF treatment. (A) Stem cells themselves without differentiation to hepatocyte-like cell (CELL STALKER-CSR dye staining, red; Original magnification: ×10, ×20). (B) Stems cells with differentiation to hepatocyte and albumin expression(Anti-albumin staining, green; Original magnification: ×10, ×20)