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Updated: Jun 17, 2026

Establishment and Characterization of Three Afatinib-resistant Lung Adenocarcinoma PC-9 Cell Lines Developed with Increasing Doses of Afatinib
Published on: June 26, 2019
Erlotinib
M Steins1, M Thomas, M Geissler
1Clinic for Thoracic Diseases, University of Heidelberg, Amalienstrasse 5, 69126, Heidelberg, Germany. martin.steins@thoraxklinik-heidelberg.de
Abstract:
The epidermal growth factor receptor (EGFR) has been implicated in a multiplicity of cancer-related signal transduction pathways like cellular proliferation, adhesion, migration, neoangiogenesis, and apoptosis inhibition, all of them important features of cancerogenesis and tumour progression. Its tyrosine kinase activity plays a central role in mediating these processes and has been intensely studied to exploit it as a therapeutic target. Inhibitors of this pathway have been developed and assessed in trials with significant efficacy in clinical applications. The current review focuses in particular on the clinical data of EGFR tyrosine kinase inhibition in different tumour entities, preferably non-small cell lung cancer (NSCLC) and pancreatic cancer with emphasis on the approved small molecule erlotinib. Its clinical applications, evidence-based efficacy, and toxicity as well as predictive markers of response are discussed.
Insights
Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors, like erlotinib, show significant efficacy in treating cancers such as non-small cell lung cancer. This review details their clinical applications, effectiveness, and toxicity.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- The epidermal growth factor receptor (EGFR) is crucial in cancer development, regulating proliferation, migration, and survival.
- EGFR's tyrosine kinase activity is a key driver of tumor progression and a significant therapeutic target.
Purpose of the Study:
- To review clinical data on EGFR tyrosine kinase inhibition.
- To focus on erlotinib's efficacy, toxicity, and predictive markers in non-small cell lung cancer and pancreatic cancer.
Main Methods:
- Review of clinical trial data for EGFR tyrosine kinase inhibitors.
- Emphasis on erlotinib in non-small cell lung cancer (NSCLC) and pancreatic cancer.
- Analysis of clinical applications, efficacy, toxicity, and response markers.
Main Results:
- EGFR tyrosine kinase inhibitors have demonstrated significant efficacy in clinical applications.
- Erlotinib shows promise in treating specific tumor types, with varying responses.
- Predictive markers are essential for optimizing treatment outcomes.
Conclusions:
- EGFR tyrosine kinase inhibition is a validated therapeutic strategy for certain cancers.
- Erlotinib is an important treatment option, particularly for NSCLC and pancreatic cancer.
- Further research into predictive markers will enhance personalized treatment approaches.
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