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Establishment and Characterization of Three Afatinib-resistant Lung Adenocarcinoma PC-9 Cell Lines Developed with Increasing Doses of Afatinib
Published on: June 26, 2019
Lung adenocarcinoma: guiding EGFR-targeted therapy and beyond
1Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA. ladanyim@mskcc.org
Abstract:
Somatic mutations in certain tyrosine kinases have emerged as central 'drivers' of specific cancers and these mutant proteins are proving to be excellent substrates for targeted therapies. This is the case for mutant EGFR-dependent lung adenocarcinomas, where EGFR mutation testing is already being used to help guide treatment decisions. Here, we provide an overview of the biology of EGFR-targeted therapies and the clinical experience to date, the positive and negative predictors of response, pathologic correlates of EGFR-mutant status, testing methods to establish patient eligibility for these agents, and the basis for primary and secondary resistance.
Insights
Targeted therapies for cancers with specific tyrosine kinase mutations, like epidermal growth factor receptor (EGFR) in lung cancer, are effective. Understanding EGFR mutation testing and resistance is key for guiding treatment decisions.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Somatic mutations in tyrosine kinases drive specific cancers.
- Mutant proteins are targets for novel therapies.
- Epidermal growth factor receptor (EGFR) mutations are key drivers in lung adenocarcinoma.
Purpose of the Study:
- To provide an overview of EGFR-targeted therapies.
- To discuss clinical experience, predictors of response, and resistance.
- To cover testing methods for patient eligibility.
Main Methods:
- Literature review of EGFR-targeted therapies.
- Analysis of clinical trial data.
- Review of pathological and resistance mechanisms.
Main Results:
- EGFR mutation testing guides treatment in lung adenocarcinoma.
- Predictors of response and resistance are being identified.
- Understanding resistance mechanisms is crucial for effective therapy.
Conclusions:
- EGFR-targeted therapies represent a significant advance in lung cancer treatment.
- Personalized medicine approaches based on molecular profiling are essential.
- Further research into resistance mechanisms will improve patient outcomes.
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