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1 result(s) for "姚伟明 刘妍 思兰兰 许智慧 李鹏高 卜绿萍 兰金初 徐东平"
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新型中药制剂肃毒星对乙型肝炎病毒体外复制的抑制作用研究
目的观察新型中药制剂肃毒星对野生和恩替卡韦(ETV)耐药乙型肝炎病毒(HBV)的抑制作用。方法以不同浓度(0、0.0005、0.001、0.005、0.01mg/m1)的肃毒星分别处理HepG2.2.15细胞(D基因型/ayw亚型野生HBV稳定复制细胞系)和HepG2.A64细胞(c基因型/adr亚型ETv耐药HBV稳定复制细胞系),作用时间4d。采用酶联免疫吸附试验检测细胞培养上清@HBsAg和HBeAg含量的变化;提取细胞内病毒核心颗粒,采用实时荧光定量PCR方法检测两种细胞内HBVDNA复制水平的变化。观察不同作用时间下,药物对HBVDNA的抑制作用。结果肃毒星对HepG2.2.1S细胞和HepG2.A64细胞内HBVDNA复制和HBsAg、HBeAg的分泌均有明显抑制作用,且具有药物剂量和时间依赖性,最高浓度(0.0lmg/m1)的肃毒星对HepG2.2.15细胞内病毒的抑制率达到80.83%,对HBsAg和HBeAg的抑制率分别达51.00%和64.05%;而对HepG2.A64细胞内HBVDNA抑制率为65.18%,对HBsAg和HBeAg的抑制率分别为32.8s%和73.86%。随肃毒星作用时间延长,其对HepG2.2.15细胞HBVDNA的抑制效果增强,但未显示对HepG2.A64细胞内ETV耐药型HBV株病毒抑制率增强的效果。结论体外细胞培养实验中,肃毒星不仅可有效抑制野生HBV复制和抗原分泌,而且对ETV耐药HBV的复制和抗原分泌也具有很好的抑制作用。