Radioimmunolocation of a heterotransplanted human choriocarcinoma (BeWo) using monoclonal anti-SSEA-1: pharmacokinetics.
Antibodies-Monoclonal: du, Antigen-Antibody-Complex: an, Choriocarcinoma: im, ri, Female, Glycolipids: an, Human, Iodine-Radioisotopes: du, Mice, Mice-Inbred-BALB-C, Mice-Nude, Neoplasm-Transplantation, Pregnancy, SUPPORT-U-S-GOVT-NON-P-H-S, SUPPORT-U-S-GOVT-P-H-S, Transplantation-Heterologous, Uterine-Neoplasms: im, ri
Hybridoma 1987 Jun;6(3):241-51
Stage-Specific Embryonic Antigen-1 (SSEA-1), originally discovered on mouse teratocarcinomas, has since been found on some human non-seminomatous germ-cell tumors and adenocarcinomas, as well as on some adult mouse and human tissues. A monoclonal antibody to this antigen (anti-SSEA-1; IgM, kappa) was used for radioimmunolocation. Nude mice bearing the human choriocarcinoma BeWo, which is SSEA-1 positive, were injected using a mixture of [131I]anti-SSEA-1 and [125I]MOPC 104E, an unselected myeloma protein of the same heavy-chain isotype. Animals were sacrificed at 24 hour intervals; the radioactive deposition due to both antibodies was determined for both tumors and normal organs. Accumulation of anti-SSEA-1 in the tumor was consistantly rapid and specific, while little accumulation of the unselected myeloma protein occurred. At five days after injection, an average of 3% of the initial dose of specific antibody was retained per gram of tumor; the tumor/blood ratio was 11, tumor/muscle was 80. Gamma-camera imaging allowed ready location of the tumors. Tumors could also be imaged using F(ab')2 antibody fragments.
Ballou, B; Reiland, J M.; Levine, G; Solter, D; and Hakala, T R., " Radioimmunolocation of a heterotransplanted human choriocarcinoma (BeWo) using monoclonal anti-SSEA-1: pharmacokinetics." (1987). Faculty Research 1980 - 1989. 951.
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