cccDNA
甲基转移酶
乙型肝炎病毒
核糖核酸
病毒学
分子生物学
DNA
乙型肝炎病毒β前体
抄写(语言学)
DNMT1型
生物
医学
基因
乙型肝炎病毒DNA聚合酶
遗传学
病毒
乙型肝炎表面抗原
哲学
甲基化
语言学
作者
Dmitry Kostyushev,А. П. Зуева,Sergey Brezgin,А. Д. Липатников,В. Н. Симирский,Dieter Glebe,Volchkova Ev,German A. Shipulin,Vladimir Chulanov
标识
DOI:10.17116/terarkh2017891121-26
摘要
Aim. To define the role of DNA-methyltransferases of type 1 and type 3A in hepatitis B viral cycle. Materials and methods. Human hepatoma cells HepG2 with stable expression of 1.1-mer HBV genome were transfected with vectors encoding DNA-methyltransferase 1 (DNMT1), DNA-methyltransferase 3A (DNMT3A) or were co-transfected with these vectors. Total HBV DNA copy number, relative expression of pregenomic RNA (pgRNA), S-protein-encoding RNA (S-RNA) and cccDNA were analyzed by quantitative and semi-quantitative real-time PCR-analysis with TaqMan probes for assessment of DNMTs-mediated effects on HBV. Results. DNMT1 and DNMT3A suppress HBV transcription and replication, though to different magnitude. cccDNA pool is enlarged statistically significantly ≈2-fold (P
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