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New preclinical antimalarial drugs potently inhibit hepatitis C virus genotype 1b RNA replication.

التفاصيل البيبلوغرافية
العنوان: New preclinical antimalarial drugs potently inhibit hepatitis C virus genotype 1b RNA replication.
المؤلفون: Youki Ueda, Midori Takeda, Kyoko Mori, Hiromichi Dansako, Takaji Wakita, Hye-Sook Kim, Akira Sato, Yusuke Wataya, Masanori Ikeda, Nobuyuki Kato
المصدر: PLoS ONE, Vol 8, Iss 8, p e72519 (2013)
بيانات النشر: Public Library of Science (PLoS), 2013.
سنة النشر: 2013
المجموعة: LCC:Medicine
LCC:Science
مصطلحات موضوعية: Medicine, Science
الوصف: BACKGROUND: Persistent hepatitis C virus (HCV) infection causes chronic liver diseases and is a global health problem. Although new triple therapy (pegylated-interferon, ribavirin, and telaprevir/boceprevir) has recently been started and is expected to achieve a sustained virologic response of more than 70% in HCV genotype 1 patients, there are several problems to be resolved, including skin rash/ageusia and advanced anemia. Thus a new type of anti-HCV drug is still needed. METHODOLOGY/PRINCIPAL FINDINGS: Recently developed HCV drug assay systems using HCV-RNA-replicating cells (e.g., HuH-7-derived OR6 and Li23-derived ORL8) were used to evaluate the anti-HCV activity of drug candidates. During the course of the evaluation of anti-HCV candidates, we unexpectedly found that two preclinical antimalarial drugs (N-89 and its derivative N-251) showed potent anti-HCV activities at tens of nanomolar concentrations irrespective of the cell lines and HCV strains of genotype 1b. We confirmed that replication of authentic HCV-RNA was inhibited by these drugs. Interestingly, however, this anti-HCV activity did not work for JFH-1 strain of genotype 2a. We demonstrated that HCV-RNA-replicating cells were cured by treatment with only N-89. A comparative time course assay using N-89 and interferon-α demonstrated that N-89-treated ORL8 cells had more rapid anti-HCV kinetics than did interferon-α-treated cells. This anti-HCV activity was largely canceled by vitamin E. In combination with interferon-α and/or ribavirin, N-89 or N-251 exhibited a synergistic inhibitory effect. CONCLUSIONS/SIGNIFICANCE: We found that the preclinical antimalarial drugs N-89 and N-251 exhibited very fast and potent anti-HCV activities using cell-based HCV-RNA-replication assay systems. N-89 and N-251 may be useful as a new type of anti-HCV reagents when used singly or in combination with interferon and/or ribavirin.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1932-6203
Relation: http://europepmc.org/articles/PMC3758303?pdf=render; https://doaj.org/toc/1932-6203
DOI: 10.1371/journal.pone.0072519
URL الوصول: https://doaj.org/article/44c3076c16694327aded1920622dcfca
رقم الأكسشن: edsdoj.44c3076c16694327aded1920622dcfca
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:19326203
DOI:10.1371/journal.pone.0072519