Abstract:
:Anthracycline, either daunomycin or doxorubicin, was site specifically attached to the carbohydrate moiety of a monoclonal anticarcinoembryonic antigen antibody by using amino-dextran as the intermediate carrier. The reaction resulted in an immunoconjugate that contains approximately 20 to 25 molecules of drug per molecule of immunoglobulin G. Flow-cytometric studies revealed the retention of the antibody-binding activity. The immunoconjugate was cytotoxic to the target cells, as examined by the 75selenomethionine incorporation studies, and remained efficient for targeting a human colonic tumor (GW-39) in the nude mouse model. The conjugate possessed a greater antitumor activity against the subcutaneous tumor than either the free drug or an irrelevant antibody conjugate, and it was well tolerated by the animals at a much higher dose level than was the unconjugated drug.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Shih LB,Goldenberg DM,Xuan H,Lu H,Sharkey RM,Hall TCsubject
Has Abstractpub_date
1991-08-15 00:00:00pages
4192-8issue
16eissn
0008-5472issn
1538-7445journal_volume
51pub_type
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