A novel 2',3'-dideoxy-2'-α-fluoro-2'-β--methyl-6-methoxy guanosine () and its phosphoramidate prodrug () have been designed and synthesized. Their biological activity was evaluated in both cytotoxicity and cell-based HCV replicon assays. Neither compounds exhibited cytotoxicity up to the highest concentration tested (100 μM) in the Huh-7 cell line. The prodrug () displayed nanomolar level antiviral activity (EC = 0.39-1.1 μM) against the HCV genotype (GT) 1a, 1b, 2a, and 1b S282T replicons.
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http://dx.doi.org/10.1021/acsmedchemlett.7b00174 | DOI Listing |
ACS Med Chem Lett
August 2024
Department of Medicinal Chemistry, University of Minnesota, 2231 Sixth Street SE, Minneapolis, Minnesota 55455, United States.
Expert Opin Investig Drugs
January 2024
Departments of Preclinical and Clinical Development, Atea Pharmaceuticals, Boston, MA, USA.
Introduction: Chronic hepatitis C virus (HCV) persists as a public health concern worldwide. Consequently, optimizing HCV therapy remains an important objective. While current therapies are generally highly effective, advanced antiviral agents are needed to maximize cure rates with potentially shorter treatment durations in a broader patient population, particularly those patients with advanced diseases who remain difficult to treat.
View Article and Find Full Text PDFTurk J Gastroenterol
June 2023
Department of Pharmacology, Eskişehir Osmangazi University Faculty of Medicine, Eskişehir, Turkey.
Background: Cyclophosphamide is a commonly used anticancer and immunosuppressive agent; however, hepatotoxicity is one of its severe toxicities. Hydrogen sulfide is a gaseous signaling molecule that plays crucial regulatory roles in various physiological functions. This study aimed to evaluate the hepatoprotective effect of hydrogen sulfide against cyclo phosp hamid e-ind uced hepatic damage in rats.
View Article and Find Full Text PDFChemMedChem
February 2023
Faculty of Chemistry, University of Warsaw, 1 Pasteur St., 02-093, Warsaw, Poland.
Nutrients
October 2022
Beijing Advanced Innovation Center for Food Nutrition and Human Health, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China.
The carnosine and anserine, which represent histidine dipeptides (HD), are abundant in chicken broth (CB). HD are endogenous dipeptide that has excellent antioxidant and immunomodulatory effects. The immunomodulatory effect of CB hydrolysate (CBH) and HD in cyclophosphamide (CTX)-induced immunosuppressed mice was examined in this study.
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