Folate receptor in malignant effusions of ovarian carcinoma

作者: JAN HOLM , STEEN INGEMANN HANSEN , MIMI HØIER-MADSEN , POUL-ERIK HELKJAER , MICHAEL BZOREK

DOI: 10.1111/J.1699-0463.1995.TB01420.X

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摘要: Binding of 3H-folate in human ovarian adenocarcinoma tissue was a high-affinity type (K approximately 10(10) M-1) and displayed apparent positive cooperatively. A folate receptor also present ascitic fluid pleural effusion. Radioligand dissociation slow at pH 7.4, but rapid 3.5. The analogues methotrexate particular 5-formyltetrahydrofolate acted as inhibitors binding fluid. Ovarian showed immunostaining with rabbit antibodies against milk folate-binding protein. gel filtration diagram contained two peaks radiolabelled (at 25 100 kDa). kDa peak predominant single band 70 seen on SDS-PAGE immunoblotting malignant effusions. concentration specimens could be determined by an immunochemical method (ELISA) utilizing

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