Cytolytic and tumor inhibitory antibodies against UK114 protein in the sera of cancer patients
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- Published online on: April 1, 1997 https://doi.org/10.3892/ijo.10.4.779
- Pages: 779-785
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Abstract
UK114 is a 14 kDa protein identified in the perchloric acid soluble extract of goat liver. Anti-UK114 antibodies identify this protein as expressed by the membrane of human cancer cells. In the present study, anti-UK114 antibodies were detected in the sera of cancer patients by ELISA and by immunofluorescence tests using human cancer cell lines as a target. UK114 protein is antigenic in cancer patients. Human anti-UK114 antibodies have cytolytic effects in vitro and their presence correlates with inhibition of growth of human carcinoma cells xenografted in nu/nu mice. This finding may open new prospects for immunotherapy.