Cell fusing agent virus and dengue virus mutually interact in Aedes aegypti cell lines

Abstract The genus Flavivirus contains more than 70 single-stranded, positive-sense arthropod-borne RNA viruses. Some flaviviruses are particularly medically important to humans and other vertebrates including dengue virus (DENV), West Nile virus, and yellow fever virus. These viruses are transmitte...

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Autores principales: Guangmei Zhang, Sultan Asad, Alexander A. Khromykh, Sassan Asgari
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Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/2612d31f91d34fbdb7452002f51862d0
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spelling oai:doaj.org-article:2612d31f91d34fbdb7452002f51862d02021-12-02T12:32:20ZCell fusing agent virus and dengue virus mutually interact in Aedes aegypti cell lines10.1038/s41598-017-07279-52045-2322https://doaj.org/article/2612d31f91d34fbdb7452002f51862d02017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07279-5https://doaj.org/toc/2045-2322Abstract The genus Flavivirus contains more than 70 single-stranded, positive-sense arthropod-borne RNA viruses. Some flaviviruses are particularly medically important to humans and other vertebrates including dengue virus (DENV), West Nile virus, and yellow fever virus. These viruses are transmitted to vertebrates by mosquitoes and other arthropod species. Mosquitoes are also infected by insect-specific flaviviruses (ISFs) that do not appear to be infective to vertebrates. Cell fusing agent virus (CFAV) was the first described ISF, which was discovered in an Aedes aegypti cell culture. We found that while CFAV infection could be significantly reduced by application of RNAi against the NS5 gene, removal of the treatment led to quick restoration of CFAV replication. Interestingly, we found that CFAV infection significantly enhanced replication of DENV, and vice versa, DENV infection significantly enhanced replication of CFAV in mosquito cells. We have shown that CFAV infection leads to increase in the expression of ribonuclease kappa (RNASEK), which is known to promote infection of viruses that rely on endocytosis and pH-dependent entry. Knockdown of RNASEK by dsRNA resulted in reduced DENV replication. Thus, increased expression of RNASEK induced by CFAV is likely to contribute to enhanced DENV replication in CFAV-infected cells.Guangmei ZhangSultan AsadAlexander A. KhromykhSassan AsgariNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Guangmei Zhang
Sultan Asad
Alexander A. Khromykh
Sassan Asgari
Cell fusing agent virus and dengue virus mutually interact in Aedes aegypti cell lines
description Abstract The genus Flavivirus contains more than 70 single-stranded, positive-sense arthropod-borne RNA viruses. Some flaviviruses are particularly medically important to humans and other vertebrates including dengue virus (DENV), West Nile virus, and yellow fever virus. These viruses are transmitted to vertebrates by mosquitoes and other arthropod species. Mosquitoes are also infected by insect-specific flaviviruses (ISFs) that do not appear to be infective to vertebrates. Cell fusing agent virus (CFAV) was the first described ISF, which was discovered in an Aedes aegypti cell culture. We found that while CFAV infection could be significantly reduced by application of RNAi against the NS5 gene, removal of the treatment led to quick restoration of CFAV replication. Interestingly, we found that CFAV infection significantly enhanced replication of DENV, and vice versa, DENV infection significantly enhanced replication of CFAV in mosquito cells. We have shown that CFAV infection leads to increase in the expression of ribonuclease kappa (RNASEK), which is known to promote infection of viruses that rely on endocytosis and pH-dependent entry. Knockdown of RNASEK by dsRNA resulted in reduced DENV replication. Thus, increased expression of RNASEK induced by CFAV is likely to contribute to enhanced DENV replication in CFAV-infected cells.
format article
author Guangmei Zhang
Sultan Asad
Alexander A. Khromykh
Sassan Asgari
author_facet Guangmei Zhang
Sultan Asad
Alexander A. Khromykh
Sassan Asgari
author_sort Guangmei Zhang
title Cell fusing agent virus and dengue virus mutually interact in Aedes aegypti cell lines
title_short Cell fusing agent virus and dengue virus mutually interact in Aedes aegypti cell lines
title_full Cell fusing agent virus and dengue virus mutually interact in Aedes aegypti cell lines
title_fullStr Cell fusing agent virus and dengue virus mutually interact in Aedes aegypti cell lines
title_full_unstemmed Cell fusing agent virus and dengue virus mutually interact in Aedes aegypti cell lines
title_sort cell fusing agent virus and dengue virus mutually interact in aedes aegypti cell lines
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/2612d31f91d34fbdb7452002f51862d0
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AT sultanasad cellfusingagentvirusanddenguevirusmutuallyinteractinaedesaegypticelllines
AT alexanderakhromykh cellfusingagentvirusanddenguevirusmutuallyinteractinaedesaegypticelllines
AT sassanasgari cellfusingagentvirusanddenguevirusmutuallyinteractinaedesaegypticelllines
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