Acquired resistance to erlotinib in MET diagnostic (+) patients was not reversed by emibetuzumab plus erlotinib or emibetuzumab monotherapy, although a subset of patients obtained clinical benefit.
over 2 years ago
P2 data • Preclinical • Clinical Trial,Phase II • Journal
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MET (MET proto-oncogene, receptor tyrosine kinase)
We report that MET surface expression is reduced by MARCH1, 4, or 8-mediated ubiquitination and that emibetuzumab-induced MET ubiquitination contributes to its capacity to downregulate MET and inhibit human tumor cell proliferation. Thus, MARCH E3 ligases can act as cofactors for antitumor Abs that target cell surface proteins, suggesting that the MARCH protein repertoire of cells is a determinant of their response to such Abs.
4 years ago
Journal
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MET (MET proto-oncogene, receptor tyrosine kinase) • HGF (Hepatocyte growth factor) • SLC3A2 (Solute Carrier Family 3 Member 2)
Various kinase inhibitor and monoclonal antibody (e.g. Emibetuzumab and Onartuzumab) have been developed to block the HGF/c-MET interactions, however, those kinase-inhibiting-based therapeutics have shown limited success in clinical trials...An example of this design strategy is the FDA-approved bispecific antibody blinatumomab...Collectively, the novel c-MET/CD3 bispecific antibody can provide immunotherapy for c-MET-overexpressing tumors which conventional antibody or small molecular inhibitor might not. These findings also support the immunotherapeutic effects on combination of T-cell dependent bispecific antibody and immune checkpoint blockade.