NCIt definition : A fully human, IgG1 monoclonal antibody directed against the FLT3 tyrosine kinase
receptor (CD135) with potential antineoplastic activity. Upon binding to FLT3, anti-FLT3
monoclonal antibody IMC-EB10 blocks FLT3 ligand binding to FLT3 and subsequent FLT3
phosphorylation, which may result in the inhibition of FLT3-mediated signal transduction
pathways. In addition, this agent may stimulate an anti-FLT3 antibody-dependent cell-mediated
cytotoxicity (ADCC) against FLT3-expressing tumor cells, which may result in the inhibition
of cellular proliferation and survival in FLT3-expressing cells. FLT3 (FLK2), a class
III tyrosine kinase receptor, is overexpressed or mutated in most B lineage and acute
myeloid leukemias.;