NCIt related terms : interleukin-13 PE38QQR immunotoxin;
NCIt definition : A recombinant chimeric protein with potent antitumor activity. Cintredekin besudotox
is composed of interleukin-13 (IL13), a pleiotropic immunoregulatory cytokine, linked
to a mutated form of pseudomonas exotoxin A; this agent targets and kills tumor cells
that express the IL13 receptor (IL13R).The IL13 moiety attaches to the IL13R on the
tumor cell membrane, facilitating the entry of the exotoxin. The exotoxin moiety induces
caspase-mediated apoptosis of tumor cells via a mechanism involving mitochondrial
damage; it also catalyzes the transfer of ADP ribose from nicotinamide adenine dinucleotide
(NAD) to elongation factor-2 in eukaryotic cells, thereby inactivating elongation
factor 2 and inhibiting protein synthesis.;
Alternative definition : NCI-GLOSS: A substance being studied in the treatment of cancer. It is made by combining
interleukin-13 with a toxin from Pseudomonas bacteria. It is a type of recombinant
chimeric protein.;