• Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning Province, China;
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ObjectiveTo evaluate the effect of ZnPP Ⅸ on the expressions of heme oxygenase-1 (HO-1) and glutathione-Stransferase-π (GST-π) and the chemosensitivity of drug-resistant hepatic carcinoma cell line Bel/Fu, and explore it’s possibility to reverse drug-resistance and the relevant regulating mechanism. Methods①MTT assay was adopted to detect the drug sensitivity for adriamycin, mitomycin, and 5-fluorouracil of Bel/Fu cell after ZnPP Ⅸ being induced for 24 h. ②RTPCR was carried out to detect the expressions of HO-1 and GST-π mRNA after Bel/FU cells being treated with different concentrations ZnPP Ⅸ for 24 h. ResultsAfter Bel/Fu cells being treated with ZnPP Ⅸ for 24 h, the 50% inhibiting concentration (IC50) for drugs was decreased dramatically (P lt;0.05). Meanwhile, the expressions of HO-1 and GST-π mRNA in the treated cells also decreased dose-dependently (P lt;0.01). ConclusionsZnPP Ⅸ can increase the chemosensitivity of Bel/FU cells by down-regulation of HO-1 and GST-π expression. ZnPP Ⅸ is a potential agent to reverse multidrug resistance of hepatic carcinoma cells.

Citation: ZHANG Junkai,WANG Zhongyu,GONG Peng,LUO Haifeng,CHENG Lei.. Effect of ZnPP Ⅸ on HO-1 and GST-π Expressions and Chemosensitivity of Drug-Resistant Hepatic Carcinoma Cell Line Bel/Fu. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2011, 18(5): 503-506. doi: Copy