Heparan sulfate is the attachment factor associated with channel catfish virus infection on host cells

Channel catfish virus (CCV; family Alloherpesviridae) infects channel catfish, causing great harm to aquaculture fisheries and economic development. Attachment is the first step in viral infection and relies on the interaction of virions with components of the extracellular matrix (ECM). The present...

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Main Authors: Fei Yu, Hongxun Chen, Jiehua Xu, Yu Wang, Chunlan Nie, Siyang Song, Lihui Meng, Kai Hao, Zhe Zhao
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-09-01
Series:Frontiers in Veterinary Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fvets.2023.1260002/full
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author Fei Yu
Hongxun Chen
Jiehua Xu
Yu Wang
Chunlan Nie
Siyang Song
Lihui Meng
Kai Hao
Zhe Zhao
author_facet Fei Yu
Hongxun Chen
Jiehua Xu
Yu Wang
Chunlan Nie
Siyang Song
Lihui Meng
Kai Hao
Zhe Zhao
author_sort Fei Yu
collection DOAJ
description Channel catfish virus (CCV; family Alloherpesviridae) infects channel catfish, causing great harm to aquaculture fisheries and economic development. Attachment is the first step in viral infection and relies on the interaction of virions with components of the extracellular matrix (ECM). The present study aimed to explored the role of the main three ECM components in CCV attachment. Western blotting and quantitative real-time PCR analysis showed that neither collagen nor hyaluronic acid treatments had significant effects on CCV attachment. When exogenous heparin was used as a competitive inhibitor, the adhesion of heparin sodium salt to CCV was dose-dependent. When the concentration of heparin sodium salt was 10 mg/mL, the inhibitory effect on CCV infection of channel catfish ovary (CCO/BB) cells was more than 90%. Heparinase I could significantly prevent CCV attachment by digesting heparan sulfate on the cell surface, and both heparin sodium salt and heparinase I could dose-dependently reduce CCV titers, suggesting that heparin plays an important role in CCV attachment. In addition, the binding experiments between heparin-agarose beads and virions showed that CCV virions could specifically bind to heparin in a dose-dependent manner. The above results suggested that heparan sulfate might be an attachment factor involved in CCV infection of CCO/BB cells. These results increase our understand of the attachment mechanism of CCV and lay the foundation for further research on antiviral drugs.
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spelling doaj.art-f3f6adeb60374727938eb7084f74bb032023-09-07T14:09:12ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692023-09-011010.3389/fvets.2023.12600021260002Heparan sulfate is the attachment factor associated with channel catfish virus infection on host cellsFei YuHongxun ChenJiehua XuYu WangChunlan NieSiyang SongLihui MengKai HaoZhe ZhaoChannel catfish virus (CCV; family Alloherpesviridae) infects channel catfish, causing great harm to aquaculture fisheries and economic development. Attachment is the first step in viral infection and relies on the interaction of virions with components of the extracellular matrix (ECM). The present study aimed to explored the role of the main three ECM components in CCV attachment. Western blotting and quantitative real-time PCR analysis showed that neither collagen nor hyaluronic acid treatments had significant effects on CCV attachment. When exogenous heparin was used as a competitive inhibitor, the adhesion of heparin sodium salt to CCV was dose-dependent. When the concentration of heparin sodium salt was 10 mg/mL, the inhibitory effect on CCV infection of channel catfish ovary (CCO/BB) cells was more than 90%. Heparinase I could significantly prevent CCV attachment by digesting heparan sulfate on the cell surface, and both heparin sodium salt and heparinase I could dose-dependently reduce CCV titers, suggesting that heparin plays an important role in CCV attachment. In addition, the binding experiments between heparin-agarose beads and virions showed that CCV virions could specifically bind to heparin in a dose-dependent manner. The above results suggested that heparan sulfate might be an attachment factor involved in CCV infection of CCO/BB cells. These results increase our understand of the attachment mechanism of CCV and lay the foundation for further research on antiviral drugs.https://www.frontiersin.org/articles/10.3389/fvets.2023.1260002/fullchannel catfish virusheparinattachment factorvirus infectionantiviral agents
spellingShingle Fei Yu
Hongxun Chen
Jiehua Xu
Yu Wang
Chunlan Nie
Siyang Song
Lihui Meng
Kai Hao
Zhe Zhao
Heparan sulfate is the attachment factor associated with channel catfish virus infection on host cells
Frontiers in Veterinary Science
channel catfish virus
heparin
attachment factor
virus infection
antiviral agents
title Heparan sulfate is the attachment factor associated with channel catfish virus infection on host cells
title_full Heparan sulfate is the attachment factor associated with channel catfish virus infection on host cells
title_fullStr Heparan sulfate is the attachment factor associated with channel catfish virus infection on host cells
title_full_unstemmed Heparan sulfate is the attachment factor associated with channel catfish virus infection on host cells
title_short Heparan sulfate is the attachment factor associated with channel catfish virus infection on host cells
title_sort heparan sulfate is the attachment factor associated with channel catfish virus infection on host cells
topic channel catfish virus
heparin
attachment factor
virus infection
antiviral agents
url https://www.frontiersin.org/articles/10.3389/fvets.2023.1260002/full
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