脱氧野尻霉素衍生物抗乙型肝炎病毒的体外试验研究

目的:观察脱氧野尻霉素(DNJ)衍生物N—苄基—1—脱氧野尻霉素(P-DNJ)与N—壬基—1—脱氧野尻霉素(NN-DNJ)的体外抗乙型肝炎病毒(HBV)作用。方法:以HBVDNA转染的人肝癌细胞株HepG22,2,15细胞为靶细胞,以不同浓度的试验药物培养细胞,在第6天、第10天时应用时间分辨免疫荧光分析法和荧光实时定量聚合酶链反应法检测培养基上清液中HBsAg、HBeAg和HBVDNA,同时应用MTT法检测药物对细胞的毒性。结果:P-DNJ、NN-DNJ在试验浓度(5~125μg.mL-1)内未见细胞毒性作用,在浓度为125μg.mL-1时能显著减少细胞培养基上清液中HBsAg、HBeAg、HBVDNA的分泌。结论:P-DNJ、NN-DNJ在体外细胞培养试验中发现有抗HBV作用。

Anti-HBV Activity of Deoxynojirimycin Derivatives in Vitro

OBJECTIVE:To investigate the anti-HBV activities of deoxynojirimycin(DNJ)derivatives N—benzyl—1—DNJ(P-DNJ)and N—nonyl—1—DNJ(NN-DNJ)in vitro.METHODS:Human hepatoma carcinoma cell lines HepG2 2,2,15,which were transfected from HBV DNA,were taken as target cells,cells were cultured with different concentrations of test drugs, with HBsAg,HBeAg and HBV DNA in the cultured supernatant determined by time-resolved immunofluorometric assay and fluorescent quantitation PCR assay on day 6th and 10th day,meanwhile,with the cytotoxicity of DNJ derivatives determined by MTT assay.RESULTS:No cytotoxic effects was noted when the test concentration of P-DNJ and NN-DNJ was within 5～125μg·mL-1,HBsAg and HBeAg levels and HBV DNA secretion decreased significantly at a concentration of 125μg·mL-1.CONCLUSION:P-DNJ and NN-DNJ showed anti-HBV activity in the in vitro cell culture experiment.