NCIt related terms : DT388IL3 fusion protein; TAGRAXOFUSP;
NCIt definition : A recombinant protein consisting of human interleukin 3 (IL3) fused to the first 388
amino acids of diphtheria toxin [DT(388)] (DT388IL3) with potential antineoplastic
activity. Upon intravenous administration of tagraxofusp-erzs, the IL3 moiety binds
to IL3 receptors on cells expressing the receptor. Subsequently, the DT(388) toxin
moiety, which contains both translocation and catalytic domains, is transported across
the cell membrane via endocytosis. Within the cytosol, the catalytic domain of the
toxin both catalyzes the ADP-ribosylation of, and inactivates, translation elongation
factor 2 (EF-2), which results in the inhibition of translation during protein synthesis.
IL3 may be overexpressed by a variety of cancers, including blastic plasmacytoid dendritic
cell neoplasm and acute myeloid leukemia (AML).;
Alternative definition : NCI-GLOSS: A substance being studied in the treatment of myeloid leukemia (a disease
in which too many immature non-lymphocyte white blood cells are found in the blood
and bone marrow). DT388IL3 fusion protein is made by combining IL-3 with a toxic substance.
The IL-3 attaches to the cancer cells and the toxic substance kills them.;
UNII : 8ZHS5657EH;
CAS number : 2055491-00-2; a href https://gsrs.ncats.nih.gov/ginas/app/beta/browse-substance?search 2055491-00-2
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