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  • An antibody-drug conjugate (ADC) composed of MCDT2219A , a humanized IgG1 anti-CD22 monoclonal antibody covalently linked, via a protease-cleavable peptide linker, to monomethyl auristatin E (MMAE), an auristatin derivative and a potent microtubule disrupting agent, with potential antineoplastic activity. Upon administration, the monoclonal antibody moiety of DCDT2980S binds to B-cell-specific CD22 receptors and is rapidly internalized, thereby delivering MMAE intracellularly. Upon proteolytic cleavage, MMAE binds to tubulin and inhibits its polymerization, resulting in G2/M phase arrest and tumor cell apoptosis. CD22, a cell surface glycoprotein, is expressed on mature B-cells and on most malignant B-cells. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C104167\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C104167\' NCI Thesaurus)
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