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Analysis of the binding of hepatitis C virus genotype 1a and 1b E2 glycoproteins to peripheral blood mononuclear cell subsets

Yamada, Eriko; Montoya, Maria; Schuettler, Christian G.; Hickling, Timothy P.; Tarr, Alexander W.; Vitelli, Alessandra; Dubuisson, Jean; Patel, Arvind H.; Ball, Jonathan K.; Borrow, Persephone

Authors

Eriko Yamada

Maria Montoya

Christian G. Schuettler

Timothy P. Hickling

Alessandra Vitelli

Jean Dubuisson

Arvind H. Patel

Jonathan K. Ball

Persephone Borrow



Abstract

Hepatitis C virus (HCV) binding to hepatocytes is thought to be mediated via interaction of the E2 glycoprotein with (co-)receptors including CD81 and scavenger receptor class B type I (SR-BI). Here, the expression of CD81 and SR-BI was analysed on peripheral blood mononuclear cell (PBMC) subsets, and the binding of genotype 1 soluble truncated E2 (sE2) proteins to these cells was investigated. All PBMC subsets expressed CD81, although at varying levels. In contrast, SR-BI was only detected on monocytes and dendritic cells (DCs). The genotype 1a H77c sE2 protein showed higher PBMC binding than other genotype 1a/b sE2s. H77c sE2 binding to different PBMC subsets largely paralleled their level of CD81 expression, and could be inhibited by blocking E2-CD81 interaction. However, those PBMC subsets reported to be infected by HCV in vivo (monocytes, DCs and B cells) also exhibited residual, CD81-independent binding, indicating roles for SIR-BI/other receptor(s) in mediating haematopoietic cell infection. © 2005 SGM.

Citation

Yamada, E., Montoya, M., Schuettler, C. G., Hickling, T. P., Tarr, A. W., Vitelli, A., Dubuisson, J., Patel, A. H., Ball, J. K., & Borrow, P. (2005). Analysis of the binding of hepatitis C virus genotype 1a and 1b E2 glycoproteins to peripheral blood mononuclear cell subsets. Journal of General Virology, 86(9), 2507-2512. https://doi.org/10.1099/vir.0.81169-0

Journal Article Type Article
Online Publication Date Sep 1, 2005
Publication Date Sep 1, 2005
Deposit Date Nov 9, 2022
Journal Journal of General Virology
Print ISSN 0022-1317
Electronic ISSN 1465-2099
Publisher Microbiology Society
Peer Reviewed Peer Reviewed
Volume 86
Issue 9
Pages 2507-2512
DOI https://doi.org/10.1099/vir.0.81169-0
Public URL https://nottingham-repository.worktribe.com/output/3129665
Publisher URL https://www.microbiologyresearch.org/content/journal/jgv/10.1099/vir.0.81169-0