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A human monoclonal antibody against the carbohydrate antigen sialyl-Lewis A (carbohydrate antigen 19-9; CA19-9), with potential antineoplastic activity. Upon administration, monoclonal antibody 5B1 binds to CA19-9 and kills CA19-9-expressing tumor cells, possibly through the induction of both complement-dependent cytotoxicity (CDC) and antibody-dependent cell-mediated cytotoxicity (ADCC). CA19-9 is overexpressed on a number of different tumor cell types, and plays a key role in tumor cell survival and metastasis. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C125900\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C125900\' NCI Thesaurus)
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