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Abstract Title:

Antiviral effect of saikosaponin B2 in combination with daclatasvir on NS5A resistance-associated substitutions of hepatitis C virus.

Abstract Source:

J Chin Med Assoc. 2019 May ;82(5):368-374. PMID: 30920421

Abstract Author(s):

Wei-Ping Lee, Keng-Li Lan, Shi-Xian Liao, Yi-Hsiang Huang, Ming-Chih Hou, Keng-Hsin Lan

Article Affiliation:

Wei-Ping Lee

Abstract:

BACKGROUND: Hepatitis C virus (HCV) is a major causative agent of chronic hepatitis, cirrhosis, and hepatocellular carcinoma. The rapid progress in the development of direct-acting antivirals has greatly elevated the cure rate to≥95% in recent years. However, the high cost of treatment is not affordable to patients in some countries, necessitating the development of less expensive treatment.

METHODS: We adopted a cell culture-derived HCV system to screen a library of the pure compounds extracted from herbs deposited in the chemical bank of the National Research Institute of Chinese Medicine, Taiwan.

RESULTS: We found that saikosaponin B2 inhibited viral entry, replication, and translation. Saikosaponin B2 is a plant glycoside and a component of xiao-chai-hu-tang, a traditional Chinese herbal medicine extracted from the roots of Bupleurum falcatum. It also inhibited daclatasvir-resistant mutant strains of HCV, especially in combination with daclatasvir.

CONCLUSION: Our results may aid the development of a new combination therapy useful for patients with HCV who are intolerant or refractory to the currently available medications, including pegylated interferon and direct-acting antiviral agents.

Study Type : In Vitro Study

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