Abstract
We explored the clinical and pathological impact of epidermal growth factor receptor (EGFR) extracellular domain missense mutations. Retrospective assessment of 260 de novo glioblastoma patients revealed a significant reduction in overall survival of patients having tumors with EGFR mutations at alanine 289 (EGFRA289D/T/V). Quantitative multi-parametric magnetic resonance imaging analyses indicated increased tumor invasion for EGFRA289D/T/V mutants, corroborated in mice bearing intracranial tumors expressing EGFRA289V and dependent on ERK-mediated expression of matrix metalloproteinase-1. EGFRA289V tumor growth was attenuated with an antibody against a cryptic epitope, based on in silico simulation. The findings of this study indicate a highly invasive phenotype associated with the EGFRA289V mutation in glioblastoma, postulating EGFRA289V as a molecular marker for responsiveness to therapy with EGFR-targeting antibodies.
Original language | English |
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Pages (from-to) | 163-177.e7 |
Journal | Cancer Cell |
Volume | 34 |
Issue number | 1 |
DOIs | |
State | Published - Jul 9 2018 |
Keywords
- A289D/T/V
- EGFR
- EGFR oncogenes
- EGFR targeted therapy
- GBM
- glioblastoma
- glioma
- radiogenomics
- radiomics
- survival