Abstract
The study of T-cell-mediated cytotoxicity in domestic animals, especially in cattle, has been hampered by the lack of proper restimulatory as well as target systems. While the currently available bovine cell lines have not been typed for the major histocompatibility complex (MHC) class I molecules they express, methods to derive lines of cells obtained from animals that are MHC-typed have not been thoroughly explored. In the present study, we describe a method for the development of cell lines from MHC-typed animals. Cells obtained from the skin of a calf typed as bovine lymphocyte antigen-A11/-A13 were transfected with a plasmid containing the whole genome of simian vacuolating virus 40 (SV40). A cell line was derived from the resultant transfectants. This cell line expressed bovine MHC class I molecules on the cell surface, and SV40 large T antigen in the nucleus. The cells were permissive to the replicative cycle of bovine herpesvirus-1 (BHV-1), and the major glycoproteins of BHV-1 were expressed at expected times after infection. The present study should contribute to the study of cytotoxic T lymphocyte response of cattle to BHV-1 and other intracellular pathogens.
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