Isolation of tumor-specific antibodies from effusions of ovarian carcinomas.

International Journal of Cancer. Journal International Du Cancer
B H DorsettH R Barber

Abstract

Peritoneal effusions of patients with ovarian cancer contain sizable amounts of free and complexed immunoglobulins. By means of salt precipitation procedures, antibodies were recovered that after purification and concentration displayed a high degree of specificity against ovarian carcinoma cells. In indirect immunofluorescence, immunoglobulins recovered from seven different peritoneal effusions showed bright cytoplasmic staining with tissue cultures and fresh suspensions of ovarian carcinoma cells but not of normal ovaries or non-ovarian tumors. Immunoglobulins isolated from fluids of benign ovarian cysts or from effusions of non-ovarian tumors were negative in immunofluorescence tests. Autologous antibodies recovered from peritoneal effusions will be hopefully utilized in sensitive radioimmunoassay tests that are greatly needed for the early detection of ovarian cancer, the leading cause of death from gynecologic neoplasia.

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Citations

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