NCIt definition : An immunoconjugate consisting of the humanized monoclonal antibody M9346A against
folate receptor 1 (FOLR1) conjugated, via the disulfide-containing cleavable linker
sulfo-SPDB, to the cytotoxic maytansinoid DM4, with potential antineoplastic activity.
The anti-FOLR1 monoclonal antibody moiety of mirvetuximab soravtansine targets and
binds to the cell surface antigen FOLR1. After antibody-antigen interaction and internalization,
the immunoconjugate releases DM4, which binds to tubulin and disrupts microtubule
assembly/disassembly dynamics, thereby inhibiting cell division and cell growth of
FOLR1-expressing tumor cells. FOLR1, a member of the folate receptor family is overexpressed
on a variety of epithelial-derived cancer cells. The sulfo-SPDB linker prevents cleavage
in the bloodstream and may improve this agent's efficacy in multidrug resistant tumor
cells.;
UNII : 98DE7VN88D;
CAS number : 1453084-37-1; a href https://gsrs.ncats.nih.gov/ginas/app/beta/browse-substance?search 1453084-37-1
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