tumour specific antigen

tumour specific antigen
(= tumour specific transplantation antigen; TSTA)
Antigen on tumour cells detected by cell-mediated immunity. For virus-transformed cells TSTA (unlike T-antigen) is found to differ for different individual tumours induced by the same virus. May consist of fragments of T-antigens exposed at the cell surface.

Dictionary of molecular biology. 2004.

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