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  • Title: Early interaction of canine calicivirus with cells is the major determinant for its cell tropism in vitro.
    Author: Maeda Y, Tohya Y, Matsuura Y, Mochizuki M, Sugimura T.
    Journal: Vet Microbiol; 2002 Jul 22; 87(4):291-300. PubMed ID: 12069767.
    Abstract:
    Canine calicivirus (CaCV) No. 48 strain isolated from a dog with fatal diarrhea is known to be able to replicate in MDCK and primary dog kidney cells. In this study, two new canine cell lines, MCM-B2 and MCA-B1, were determined to be permissive for CaCV No. 48, whereas other cell lines, including one canine cell line, A-72, were non-permissive. Flow cytometric analysis indicated that CaCV No. 48 binds efficiently to the permissive cells and to some degree also to Vero cells that are non-permissive for the virus, but does not bind to the other non-permissive cells tested. Both the permissive and non-permissive cells could be transfected with genomic RNA from CaCV No. 48, resulting in the appearance of CPE, production of capsid antigen and release of infectious progeny. These results suggested that the early interaction of the virus with cells, probably by binding to a virus receptor on the cell membrane, is the major determinant of CaCV No. 48 cell tropism in vitro.
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