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Updated: May 14, 2026

Establishing Dual Resistance to EGFR-TKI and MET-TKI in Lung Adenocarcinoma Cells In Vitro with a 2-step Dose-escalation Procedure
Published on: August 11, 2017
Mechanisms of resistance to EGFR targeted therapies
Gorjan Hrustanovic1, Bianca J Lee, Trever G Bivona
1Department of Medicine, Division of Hematology and Oncology, Helen Diller Comprehensive Cancer Center University of California San Francisco, San Francisco, CA, USA.
Abstract:
EGFR is a validated therapeutic target in many human cancers. EGFR targeted therapies are in widespread clinical use in patients with non-small cell lung cancer and other tumor types. Despite the clinical success of EGFR targeted therapy, resistance to treatment is a significant barrier to the optimized use of EGFR inhibitors to cure patients with lung and other cancers. Here, we review established and emerging mechanisms of resistance to EGFR targeted therapy and highlight strategies that could overcome treatment resistance and therefore enhance clinical outcomes.
Insights
Epidermal growth factor receptor (EGFR) targeted therapies show promise in cancer treatment but face resistance. This review explores resistance mechanisms and strategies to improve patient outcomes.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Epidermal growth factor receptor (EGFR) is a key target in human cancers.
- EGFR inhibitors are clinically used for non-small cell lung cancer and other malignancies.
- Treatment resistance limits the efficacy of EGFR-targeted therapies.
Purpose of the Study:
- To review established and emerging mechanisms of resistance to EGFR targeted therapy.
- To highlight strategies for overcoming treatment resistance.
- To enhance clinical outcomes for cancer patients.
Main Methods:
- Literature review of established and emerging resistance mechanisms.
- Analysis of current and novel therapeutic strategies.
- Synthesis of findings to guide future research and clinical application.
Main Results:
- Identified diverse mechanisms of primary and acquired resistance to EGFR inhibitors.
- Discussed strategies including combination therapies and next-generation inhibitors.
- Highlighted the importance of understanding resistance pathways for personalized treatment.
Conclusions:
- Resistance to EGFR targeted therapy is multifactorial.
- Overcoming resistance requires a comprehensive understanding of molecular mechanisms.
- Developing novel strategies is crucial for improving long-term patient survival and treatment efficacy.
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