Soraphen A: a broad-spectrum antiviral natural product with potent anti-hepatitis C virus activity

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• dc.contributor.author Koutsoudakis, Georgeca
• dc.contributor.author Romero-Brey, Inésca
• dc.contributor.author Berger, Carolaca
• dc.contributor.author Pérez Vilaró, Gemma, 1985-ca
• dc.contributor.author Monteiro Perin, Paulaca
• dc.contributor.author Vondran, Florian Wolfgang Rudolfca
• dc.contributor.author Kalesse, Markusca
• dc.contributor.author Harmrolfs, Kirstenca
• dc.contributor.author Müller, Rolfca
• dc.contributor.author Martínez, Javier P.ca
• dc.contributor.author Pietschmann, Thomasca
• dc.contributor.author Bartenschlager, Ralfca
• dc.contributor.author Brönstrup, Markca
• dc.contributor.author Meyerhans, Andreasca
• dc.contributor.author Díez Antón, Juana, 1962-ca
• dc.date.accessioned 2017-02-03T08:09:20Z
• dc.date.available 2017-02-03T08:09:20Z
• dc.date.issued 2015ca
• dc.description.abstract BACKGROUND & AIMS: Soraphen A (SorA) is a myxobacterial metabolite that inhibits the acetyl-CoA carboxylase, a key enzyme in lipid biosynthesis. We have previously identified SorA to efficiently inhibit the human immunodeficiency virus (HIV). The aim of the present study was to evaluate the capacity of SorA and analogues to inhibit hepatitis C virus (HCV) infection. METHODS: SorA inhibition capacity was evaluated in vitro using cell culture derived HCV, HCV pseudoparticles and subgenomic replicons. Infection studies were performed in the hepatoma cell line HuH7/Scr and in primary human hepatocytes. The effects of SorA on membranous web formation were analysed by electron microscopy./nRESULTS:/nSorA potently inhibits HCV infection at nanomolar concentrations. Obtained EC50 values were 0.70 nM with a HCV reporter genome, 2.30 nM with wild-type HCV and 2.52 nM with subgenomic HCV replicons. SorA neither inhibited HCV RNA translation nor HCV entry, as demonstrated with subgenomic HCV replicons and HCV pseudoparticles, suggesting an effect on HCV replication. Consistent with this, evidence was obtained that SorA interferes with formation of the membranous web, the site of HCV replication. Finally, a series of natural and synthetic SorA analogues helped to establish a first structure-activity relationship./nCONCLUSIONS:/nSorA has a very potent anti-HCV activity. Since it also interferes with the membranous web formation, SorA is an excellent tool to unravel the mechanism of HCV replication.
• dc.description.sponsorship The authors are supported by grants BFU2013-44629-R (to JD, GK and GPV), SAF2013-46077-R (to/nAM and JM), both from the Spanish Ministry of Economy and Competitiveness and FEDER, and from the German Centre for Infection Research (DZIF, to MB and RM)
• dc.format.mimetype application/pdfca
• dc.identifier.citation Koutsoudakis G, Romero-Brey I, Berger C, Pérez-Vilaró G, Monteiro Perin P, Vondran FW, Kalesse M, Harmrolfs K, Müller R, Martinez JP, Pietschmann T, Bartenschlager R, Brönstrup M, Meyerhans A, Díez J. Soraphen A: A broad-spectrum antiviral natural product with potent anti-hepatitis C virus activity. J Hepatol. 2015 Oct; 63(4): 813-21. DOI: 10.1016/j.jhep.2015.06.002ca
• dc.identifier.doi http://dx.doi.org/10.1016/j.jhep.2015.06.002
• dc.identifier.issn 0168-8278ca
• dc.identifier.uri http://hdl.handle.net/10230/28045
• dc.language.iso engca
• dc.publisher Elsevierca
• dc.relation.ispartof Journal of Hepatology. 2015 Oct; 63(4):813-21
• dc.rights © Elsevier http://dx.doi.org/10.1016/j.jhep.2015.06.002ca
• dc.rights.accessRights info:eu-repo/semantics/openAccessca
• dc.subject.other Virus de l'hepatitis C
• dc.subject.other Productes naturals
• dc.title Soraphen A: a broad-spectrum antiviral natural product with potent anti-hepatitis C virus activityca
• dc.type info:eu-repo/semantics/articleca
• dc.type.version info:eu-repo/semantics/acceptedVersionca