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SLC10A1 S267F variant influences susceptibility to HBV infection and reduces cholesterol level by impairing bile acid uptake.

著者 Cheng X , Wang Y , Tian J , Zhou L , Chen X , Guo H , Zeng J , Shen N , Li J , Ke J , Zhu Y , Gong J , Chang J , Liu L , Zhong R
J Viral Hepat.2019 Jun 08 ; ():.
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The SLC10A1 Ser267Phe (S267F) variant has been reported to severely inhibit hepatitis B virus (HBV) infection and taurocholate transport activity. This study aimed to clarify the effects of this variant on HBV infection and bile acid metabolism. SLC10A1 S267F was genotyped in 2907 HBV-exposed subjects (including HBV persistent carriers and spontaneously recovered subjects) and 1364 unexposed subjects (HBV marker-negative subjects), followed by replication I, comprising 914 exposed subjects and 1123 unexposed subjects, and replication II, comprising 355 children born to HBsAg-positive mothers (226 HBV-infected children and 129 controls). Intriguingly, SLC10A1 AA was observed only in the unexposed group, but not in the exposed group. The SLC10A1 A allele consistently decreased HBV infection risk compared with the G allele (OR =0.76, 95% CI: 0.64-0.90 in combined samples). In addition, children with the SLC10A1 GA genotype had a reduced risk of perinatal transmission (OR =0.31, 95% CI: 0.14-0.71). Moreover, unexposed subjects with the SLC10A1 AA genotype exhibited decreased serum total cholesterol and low density lipoprotein cholesterol compared to those with the GG or GA genotypes (P = 2.975×10 and 0.004, respectively). The study highlighted the role of the SLC10A1 S267F variant in the loss of the ability to support HBV infection and taurocholate transport activity. Subjects with the AA genotype may escape from HBV infection and present decreased cholesterol levels as a consequence of impaired bile acid uptake. This article is protected by copyright. All rights reserved.
PMID: 31177598 [PubMed - as supplied by publisher]
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