Antibody-guided irradiation of malignant ascites in ovarian cancer: a new therapeutic method possessing specificity against cancer cells
Immunocytology of ascitic fluid of a patient with ovarian cancer demonstrated reactivity with two tumor-associated monoclonal antibodies, AUA1 and HMFG2. AUA1 radiolabeled with 48.6 mCi /sup 131/I was given intraperitoneally. There was a reduction in the rate of reaccumulation of ascites. Cytology of recurrent ascites revealed reactivity with antibody HMFG2 but not AUA1. The patient was further treated intraperitoneally with 39.0 mCi /sup 131/I-labeled HMFG2. There has been no reaccumulation of ascites. It is concluded that antibody-guided irradiation may be an effective treatment of malignant ascites secondary to ovarian cancer. Furthermore, this case illustrates the specificity of antibody interactions in the mediation of therapeutic effect and the possibility of tumor selection after irradiation with a single monoclonal antibody. If specificity plays a role, all major specificities should be covered by an appropriate panel of radioactively labeled antibodies. It is recommended that for comprehensive therapy of malignant ascites secondary to ovarian cancer, a mixture of antibodies such as HMFG2 and AUA1 should be used.
- Research Organization:
- Royal Postgraduate Medical School and Hammersmith Hospital, London, England
- OSTI ID:
- 5000645
- Journal Information:
- Obstet. Gynecol.; (United States), Journal Name: Obstet. Gynecol.; (United States)
- Country of Publication:
- United States
- Language:
- English
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ASCITES
RADIOTHERAPY
CARCINOMAS
MONOCLONAL ANTIBODIES
SPECIFICITY
CARRIERS
IODINE 131
OVARIES
PATIENTS
ANTIBODIES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
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ODD-EVEN NUCLEI
ORGANS
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RADIOISOTOPES
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