IFN-dependent and -independent Reduction in West Nile Virus Infectivity in Human Dermal Fibroblasts
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Although dermal fibroblasts are one of the first cell types exposed to West Nile virus (WNV) during a blood meal by an infected mosquito, little is known about WNV replication within this cell type. Here, we demonstrate that neuroinvasive, WNV-New York (WNV-NY), and nonneuroinvasive, WNV-Australia (WNV-AUS60) strains are able to infect and replicate in primary human dermal fibroblasts (HDFs). However, WNV-AUS60 replication and spread within HDFs was reduced compared to that of WNV-NY due to an interferon (IFN)-independent reduction in viral infectivity early in infection. Additionally, replication of both strains was constrained late in infection by an IFN-β-dependent reduction in particle infectivity. Overall, our data indicates that human dermal fibroblasts are capable of supporting WNV replication; however, the low infectivity of particles produced from HDFs late in infection suggests that this cell type likely plays a limited role as a viral reservoir in vivo.
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Saiz J, Martin-Acebes M, Blazquez A, Escribano-Romero E, Poderoso T, Jimenez de Oya N Virulence. 2021; 12(1):1145-1173.
PMID: 33843445 PMC: 8043182. DOI: 10.1080/21505594.2021.1908740.
Host sphingomyelin increases West Nile virus infection in vivo.
Martin-Acebes M, Gabande-Rodriguez E, Garcia-Cabrero A, Sanchez M, Ledesma M, Sobrino F J Lipid Res. 2016; 57(3):422-32.
PMID: 26764042 PMC: 4766991. DOI: 10.1194/jlr.M064212.
Bustos-Arriaga J, Mita-Mendoza N, Lopez-Gonzalez M, Garcia-Cordero J, Juarez-Delgado F, Gromowski G Immunol Res. 2015; 64(2):392-403.
PMID: 26130295 DOI: 10.1007/s12026-015-8675-8.