TGFB1 and hepatocellular carcinoma: This study demonstrated that the hepatoma cells proliferation increased after these cells were co-cultured with hMSC and TGFβ-1 gene transfection hMSC, suggesting that hMSC that can promote the hepatoma cells proliferation and exogenous TGFβ-1 (by TGFβ-1 gene infected hMSC high expression) can also promote the hepatoma cells proliferation.