Naratuximab emtansine

{
  "id": "MLC-T-ONC-015438",
  "term": "Naratuximab emtansine",
  "field": "Oncology and biomedicine",
  "definition": "An immunoconjugate that consists of a humanized IgG1 antibody K7153A against the cell-surface antigen CD37 and covalently linked via the uncleavable, maleimide-derived thioether-based linker SMCC to the maytansinoid DM1, with potential pro-apoptotic and cytotoxic activities. Upon administration of naratuximab emtansine, the antibody moiety of IMGN529 binds to CD37 on tumor B cells and induces an antibody-dependent cell-mediated cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC), thereby showing pro-apoptotic activity. In addition, after the internalization of this agent and lysosomal degradation, the DM1 moiety binds to tubulin and inhibits tubulin polymerization and microtubule assembly, resulting in a disruption of microtubule activity and cell division, and eventually causing cell death in CD37-positive B cells. CD37, a transmembrane glycoprotein, is overexpressed in B-cell malignancies. Compared to reducible, cleavable linkers, the non-reducible SMCC linker shows increased stability in plasma.",
  "references": [
    "National Cancer Institute Thesaurus"
  ],
  "url": "https://mlchart.com/terminology/oncology/naratuximab-emtansine/"
}