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. 2004 Feb 11;191(1):517–522. doi: 10.1016/0042-6822(92)90223-C

Cell receptor-independent infection by a neurotropic murine coronavirus

Thomas M Gallagher ∗,1, Michael J Buchmeier , Stanley Perlman †,2
PMCID: PMC7131763  PMID: 1413526

Abstract

The cellular receptors for a coronavirus, mouse hepatitis virus (MHV), have been recently identified as one or more members of the carcinoembryonic antigen (CEA) family. The neurotropic JHM strain of MHV (MHV-JHM) possesses a highly fusogenic surface (S) glycoprotein. This protein is now shown to promote the spread of MHV into cells lacking the specific CEA-related MHV receptor. Resistant cells are recruited into MHV-induced syncytium with consequent production of progeny virus. Cell-to-cell spread of virus via membrane fusion without the requirement for specific cell surface receptor offers a novel way for virus to spread within infected hosts.

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