ABSTRACT
OBJECTIVE:To study the inhibitory effects of emodin on the proliferation of human hepatocellular carcinoma SMMC7721 cells. METHODS:SMMC7721 cells were treated with 0(negative control),25,37.5,50,62.5,75,87.5,100μmol/L emodin solution and 100 μmol/L 5-FU for 24 h,48 h,72 h. The optical density value of cells was detected,and inhibition rate was calculated. SMMC7721 cells were treated with 0 (negative control),25,50,75 μmol/L emodin solution and 100 μmol/L 5-FU for 48 h,and cell apoptosis rate,cell cycle and the expression of Bax and Bcl-2 gene were detected. RESULTS:Compared with negative control,the rate of cell proliferation inhibition increased after treated with 25,37.5,50,62.5,75,87.5,100 μmol/L emodin and 100 μmol/L 5-FU,which was positively associated with the concentration and duration. Compared with negative con-trol,the rate of cell apoptosis increased after treated with 25,50,75 μmol/L emodin solution and 100 μmol/L 5-FU;the expres-sion of Bax increased and that of Bcl-2 dereased;50,75 μmol/L emodin solution and 100 μmol/L 5-FU could arrested cells at G0/G1 phase(P<0.05 or P<0.01). CONCLUSIONS:Emodin can inhibit the proliferation of SMMC7721,promote cell apoptosis and in-hibit cell growth.