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Deprecated: Implicit conversion from float 263.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Sci+Transl+Med 2020 ; 12 (541): ä Nephropedia Template TP
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An orally bioavailable broad-spectrum antiviral inhibits SARS-CoV-2 in human airway epithelial cell cultures and multiple coronaviruses in mice #MMPMID32253226
Sheahan TP; Sims AC; Zhou S; Graham RL; Pruijssers AJ; Agostini ML; Leist SR; Schafer A; Dinnon KH 3rd; Stevens LJ; Chappell JD; Lu X; Hughes TM; George AS; Hill CS; Montgomery SA; Brown AJ; Bluemling GR; Natchus MG; Saindane M; Kolykhalov AA; Painter G; Harcourt J; Tamin A; Thornburg NJ; Swanstrom R; Denison MR; Baric RS
Sci Transl Med 2020[Apr]; 12 (541): ä PMID32253226show ga
Coronaviruses (CoVs) traffic frequently between species resulting in novel disease outbreaks, most recently exemplified by the newly emerged SARS-CoV-2, the causative agent of COVID-19. Here, we show that the ribonucleoside analog beta-d-N(4)-hydroxycytidine (NHC; EIDD-1931) has broad-spectrum antiviral activity against SARS-CoV-2, MERS-CoV, SARS-CoV, and related zoonotic group 2b or 2c bat-CoVs, as well as increased potency against a CoV bearing resistance mutations to the nucleoside analog inhibitor remdesivir. In mice infected with SARS-CoV or MERS-CoV, both prophylactic and therapeutic administration of EIDD-2801, an orally bioavailable NHC prodrug (beta-d-N(4)-hydroxycytidine-5'-isopropyl ester), improved pulmonary function and reduced virus titer and body weight loss. Decreased MERS-CoV yields in vitro and in vivo were associated with increased transition mutation frequency in viral, but not host cell RNA, supporting a mechanism of lethal mutagenesis in CoV. The potency of NHC/EIDD-2801 against multiple CoVs and oral bioavailability highlights its potential utility as an effective antiviral against SARS-CoV-2 and other future zoonotic CoVs.