Experimental Study on the Cooperative Anticarcinogenic Effect of Arsenic Trioxide and Octreotide on Human Hepatocellular Carcinoma / 中国药房

ABSTRACT

OBJECTIVE:To study the cooperative effect of arsenic trioxide(As 2 O 3 )and octreotide on the proliferation of human hepatocellular carcinoma(HCC)SMMC-7721and to observe the combining effect of the two drugs.METHODS:The killing effect of drugs was determined by MTT;the cell cycle was determined by flow cytometry(FCM);the drug combination analysis was conducted by the moderate efficiency principle.RESULTS:The combination of arsenic trioxide and octreotide significantly inhibited cell proliferation of SMMC-7721in vitro;and the moderate efficiency concentration of As 2 O 3 and oc-treotide in combination was2.022?mol/L and8.088?mol/L respectively,which were lower than those when used singly.The combination of two drugs can inhibit HCC at the S-phase.The combination index was less than1if the combining domino offect of As 2 O 3 and octreotide was more than0.3.CONCLUSION:Combination of As 2 O 3 and octreotide in vitro can signifi-cantly increase the inhibition effect of each single one on the proliferation of SMMC-7721and the combination of two has a better anticarcinogenic effect when the domino offect of the combination is above0.3.