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Dissemination of MHV4 (strain JHM) infection does not require specific coronavirus receptors.

Identifieur interne : 003C21 ( Ncbi/Checkpoint ); précédent : 003C20; suivant : 003C22

Dissemination of MHV4 (strain JHM) infection does not require specific coronavirus receptors.

Auteurs : T M Gallagher [États-Unis] ; M J Buchmeier ; S. Perlman

Source :

RBID : pubmed:8209743

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English descriptors

Abstract

In this report, we demonstrate the syncytial spread of MHV4 (strain JHM) infection through non-murine cell cultures which lack a specific MHV4 receptor and are therefore resistant to infection by free virions. This was achieved by allowing infected murine cells to settle onto confluent monolayers of non-murine cells in a straightforward infectious center assay. Receptor-independent syncytium formation induced by cells expressing the MHV4 spike (S) from recombinant vaccinia viruses (VV) indicated that spread was mediated by this coronavirus glycoprotein. We conclude that the S protein of MHV4 is so potently fusogenic that it does not require prior binding to a virus-specific surface receptor to induce fusion of closely-opposed plasma membranes.

DOI: 10.1007/978-1-4615-2996-5_43
PubMed: 8209743


Affiliations:


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pubmed:8209743

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<div type="abstract" xml:lang="en">In this report, we demonstrate the syncytial spread of MHV4 (strain JHM) infection through non-murine cell cultures which lack a specific MHV4 receptor and are therefore resistant to infection by free virions. This was achieved by allowing infected murine cells to settle onto confluent monolayers of non-murine cells in a straightforward infectious center assay. Receptor-independent syncytium formation induced by cells expressing the MHV4 spike (S) from recombinant vaccinia viruses (VV) indicated that spread was mediated by this coronavirus glycoprotein. We conclude that the S protein of MHV4 is so potently fusogenic that it does not require prior binding to a virus-specific surface receptor to induce fusion of closely-opposed plasma membranes.</div>
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