Autologous antibodies eluted from membrane fragments in human ovarian epithelial neoplastic effusions III. Cytotoxic potential in vitro and characterization of antigen(s)
1990
Cyst and ascites fluids from patients with ovarian epithelial neoplasms contain immunoglobulins with antitumor activity. Autologous antibodies bound to the cellular membrane fragments obtained from human ovarian neoplastic effusions react with cell-surface antigens on different human ovarian cell lines, surgical specimens of human ovarian adenocarcinoma, and human ovarian tumors grown in athymic Balb/c mice. The antibodies do not react with tissue preparations from normal human ovaries, other nonovarian normal or neoplastic tissues, and nonovarian human cell lines. These studies indicate that these antibodies are capable of complement-mediated lysis of human ovarian tumor cell lines in vitro. Preliminary characterization of the autologous ovarian tumor-associated antigen(s) indicates that it may be composed of three large-molecular-weight proteins of 182,000, 164,000, and 122,000 d.
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