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Updated: Mar 25, 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
Drug Resistance to EGFR Inhibitors in Lung Cancer
Background:
The discovery of mutations in epidermal growth factor receptor (EGFR) has dramatically changed the treatment of patients with non-small-cell lung cancer (NSCLC), the leading cause of cancer deaths worldwide. EGFR-targeted therapies show considerable promise, but drug resistance has become a substantial issue.
Methods:
We reviewed the literature to provide an overview of the drug resistance to EGFR tyrosine kinase inhibitors (TKIs) in NSCLC.
Results:
The mechanisms causing primary, acquired and persistent drug resistance to TKIs vary. Researchers and clinicians, who have used study findings to develop more effective therapeutic approaches, have found that the sequential use of single agents presents a formidable challenge, suggesting that multidrug combinations must be considered.
Conclusions:
In the era of precision medicine, oncologists should promptly obtain an accurate diagnosis of drug resistance in each patient to be able to design the most relevant combination therapy to overcome patient-specific drug resistance.
Insights
Drug resistance to epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) is a major challenge in non-small-cell lung cancer (NSCLC). Combination therapies are crucial for overcoming resistance and improving patient outcomes.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Epidermal growth factor receptor (EGFR) mutations have revolutionized non-small-cell lung cancer (NSCLC) treatment.
- EGFR-targeted therapies offer significant promise but face challenges due to drug resistance.
- Drug resistance remains a substantial issue in NSCLC treatment.
Purpose of the Study:
- To review the literature on drug resistance mechanisms to EGFR tyrosine kinase inhibitors (TKIs) in NSCLC.
- To provide an overview of primary, acquired, and persistent drug resistance.
- To inform the development of more effective therapeutic strategies.
Main Methods:
- Literature review of studies on EGFR TKI resistance in NSCLC.
- Analysis of various drug resistance mechanisms.
- Synthesis of findings to guide clinical practice.
Main Results:
- Mechanisms of primary, acquired, and persistent drug resistance to TKIs are diverse.
- Sequential use of single agents is challenging for overcoming resistance.
- Multidrug combinations are essential for effective treatment strategies.
Conclusions:
- Accurate diagnosis of drug resistance is critical for personalized treatment.
- Combination therapy is necessary to overcome patient-specific drug resistance.
- Precision medicine requires tailored therapeutic approaches for NSCLC patients.
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