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A synthetic targeted protein toxin which consists of human transferrin (Tf) conjugated to a diphtheria toxin that contains a point mutation (CRM107). After binding to the transferrin receptor expressed on the tumor cell surface, transferrin-CRM107 is internalized, where the diphtheria toxin moiety exerts its cytotoxic effect intracellularly by inhibiting protein synthesis through ADP-ribosylation of elongation factor. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C26676\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C26676\' NCI Thesaurus)
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