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Immunization against the polyoma tumor-specific transplantation antigen (TSTA) with polyoma T-antigens
T Ramqvist1, D O Pallas, J DeAnda
1Department of Tumor Biology, Karolinska Institute, Stockholm, Sweden.
International Journal of Cancer
|July 15, 1988
Abstract:
The relationship between the polyoma virus tumor-specific transplantation antigen (TSTA) and 2 of the virus proteins coded from the early region of polyomavirus was investigated. Mice were immunized with small T antigen and a truncated mutant of middle T antigen, both purified from genetically engineered Escherichia coli. The 2 proteins induced protective immunity against polyomavirus-induced tumors, but not against non-polyoma tumors, indicating that one or more of the polyoma T antigens are directly involved in a TSTA function.