O-2-Alkylated Cytosine Acyclic Nucleoside Phosphonamidate Prodrugs Display Pan-Genotype Antiviral Activity against African Swine Fever Virus

Autor: Leah V. Goulding, Eleonóra Kiss, Robert Vrancken, Nesya Goris, Min Luo, Elisabetta Groaz, Piet Herdewijn, Linda Dixon
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: mSphere, Vol 7, Iss 6 (2022)
Druh dokumentu: article
ISSN: 2379-5042
DOI: 10.1128/msphere.00378-22
Popis: ABSTRACT African swine fever virus (ASFV) causes a highly contagious hemorrhagic disease with case fatality rates approaching 100% in domestic pigs. ASFV is responsible for substantial economic losses, but despite ongoing efforts, no vaccine or antiviral agent is currently available. Attempts to control the spread of ASFV are dependent on early detection, adherence to biosecurity measures, and culling of infected herds. However, an effective antiviral agent may be used in lieu of or in conjunction with a vaccine to effectively curb ASFV outbreaks. The dose-dependent antiviral activities of two amidate prodrugs (compounds 1a and 1b) of O-2-alkylated 3-fluoro-2-(phosphonomethoxy)propyl cytosine [(R)-O-2-alkylated FPMPC] against ASFV isolates of four different genotypes were determined. Both compounds were found to inhibit ASFV progeny virus output by >90% at noncytotoxic concentrations (
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