{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T12:20:54Z","timestamp":1791980454886,"version":"4.4.0"},"reference-count":62,"publisher":"American Society for Microbiology","issue":"1","license":[{"start":{"date-parts":[[2015,1,1]],"date-time":"2015-01-01T00:00:00Z","timestamp":1420070400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Antimicrob Agents Chemother"],"published-print":{"date-parts":[[2015,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            Dengue virus (DENV), a member of the\n            <jats:named-content xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" content-type=\"genus-species\" xlink:type=\"simple\">Flaviviridae<\/jats:named-content>\n            family, is a mosquito-borne pathogen and the cause of dengue fever. The increasing prevalence of DENV worldwide heightens the need for an effective vaccine and specific antivirals. Due to the dependence of DENV upon the lipid biosynthetic machinery of the host cell, lipid signaling and metabolism present unique opportunities for inhibiting viral replication. We screened a library of bioactive lipids and modulators of lipid metabolism and identified 4-hydroxyphenyl retinamide (4-HPR) (fenretinide) as an inhibitor of DENV in cell culture. 4-HPR inhibits the steady-state accumulation of viral genomic RNA and reduces viremia when orally administered in a murine model of DENV infection. The molecular target responsible for this antiviral activity is distinct from other known inhibitors of DENV but appears to affect other members of the\n            <jats:named-content xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" content-type=\"genus-species\" xlink:type=\"simple\">Flaviviridae<\/jats:named-content>\n            , including the West Nile, Modoc, and hepatitis C viruses. Although long-chain ceramides have been implicated in DENV replication, we demonstrate that DENV is insensitive to the perturbation of long-chain ceramides in mammalian cell culture and that the effect of 4-HPR on dihydroceramide homeostasis is separable from its antiviral activity. Likewise, the induction of reactive oxygen species by 4-HPR is not required for the inhibition of DENV. The inhibition of DENV\n            <jats:italic>in vivo<\/jats:italic>\n            by 4-HPR, combined with its well-established safety and tolerability in humans, suggests that it may be repurposed as a pan-\n            <jats:named-content xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" content-type=\"genus-species\" xlink:type=\"simple\">Flaviviridae<\/jats:named-content>\n            antiviral agent. This work also illustrates the utility of bioactive lipid screens for identifying critical interactions of DENV and other viral pathogens with host lipid biosynthesis, metabolism, and signal transduction.\n          <\/jats:p>","DOI":"10.1128\/aac.04177-14","type":"journal-article","created":{"date-parts":[[2014,10,14]],"date-time":"2014-10-14T03:23:42Z","timestamp":1413257022000},"page":"85-95","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":53,"title":["The Bioactive Lipid 4-Hydroxyphenyl Retinamide Inhibits Flavivirus Replication"],"prefix":"10.1128","volume":"59","author":[{"given":"Margot","family":"Carocci","sequence":"first","affiliation":[{"name":"Harvard Medical School, Department of Microbiology and Immunobiology, Boston, Massachusetts, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen M.","family":"Hinshaw","sequence":"additional","affiliation":[{"name":"Harvard Medical School, Department of Biological Chemistry and Molecular Pharmacology, Boston, Massachusetts, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mary A.","family":"Rodgers","sequence":"additional","affiliation":[{"name":"Harvard Medical School, Department of Microbiology and Immunobiology, Boston, Massachusetts, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Valerie A.","family":"Villareal","sequence":"additional","affiliation":[{"name":"Harvard Medical School, Department of Microbiology and Immunobiology, Boston, Massachusetts, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dominique J.","family":"Burri","sequence":"additional","affiliation":[{"name":"Harvard Medical School, Department of Microbiology and Immunobiology, Boston, Massachusetts, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rajendra","family":"Pilankatta","sequence":"additional","affiliation":[{"name":"Harvard Medical School, Department of 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