期刊
JOURNAL OF INFECTIOUS DISEASES
卷 223, 期 8, 页码 1381-1389出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/infdis/jiaa545
关键词
antiviral agents; hepatitis B virus; liver stiffness measurement; transient elastography
资金
- Ministry of Science and Technology of Taiwan [107-2314-B-002-167-MY2]
This study found a significant relationship between the percentage of A1762T/G1764A mutations after HBeAg seroconversion and liver fibrosis, suggesting that this mutation may induce hepatic inflammation by suppressing PD-L1 in hepatocytes.
Background. We investigated the relationships among the percentage of hepatitis B virus (HBV) mutations and liver fibrosis after hepatitis B e antigen (HBeAg) seroconversion. Methods. We quantified the percentage of HBV mutants by pyrosequencing using serum samples obtained at inflammatory phase and after HBeAg seroconversion in 160 initially HBeAg-positive chronic HBV-infected patients. The relationships between antiviral agents, percentages of HBV mutations, and liver stiffness measurements (LSMs) were analyzed. Results. We demonstrated that the percentages of A1762T/G1764A mutation are significantly higher in subjects with an LSM >7 kPa than in those with an LSM <= 7 kPa after HBeAg seroconversion. Hepatitis B e antigen seroconversion age is positively correlated with the percentages of A1762T/G1764A mutation at inflammatory phase before HBeAg seroconversion. Subjects who underwent interferon, entecavir, or tenofovir disoproxil fumarate therapy before HBeAg seroconversion possessed a lower percentage of A1762T/G1764A mutation after HBeAg seroconversion. The percentage of A1762T/G1764A >= 20% after HBeAg seroconversion was predictive of an LSM >71(1 3 a (hazard ratio = 6.37, P = .001). The presence of A1762T/G1764A led to downregulated messenger ribonucleic acid and protein levels of programmed-death ligand-1 (PD-L1) in hepatocytes. Conclusions. The percentage of A1762T/G1764A mutations after HBeAg seroconversion was associated with liver fibrosis. The A1762T/G1764A mutation may evoke hepatic inflammation by suppressing PD-L1 in hepatocytes.
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