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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
[Advanced Research on MicroRNAs and EGFR-TKIs Secondary Resistance]
Ming Wang1, Zhenyu Sun2, Linian Huang3
1Bengbu Medical College, Bengbu 233000, China;Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China.
Abstract:
Lung cancer is a leading cause of cancer mortality worldwide. Several molecular pathways underlying mechanisms of this disease have been partly elucidated, among which the epidermal growth factor receptor (EGFR) pathway is one of the well-known signaling cascades that plays a critical role in tumorigenesis. The strategies to effectively inhibit EGFR signaling pathway have been used in non-small cell lung cancer (NSCLC) targeted therapy. Patients with EGFR mutations benefit from EGFR-tyrosine kinase inhibitors (EGFR-TKIs) treatment. However, most of TKIs-treated patients eventually suffer drug resistant after 10-month treatments. MiRNAs (microRNAs) is a non coding RNA and protein involved in regulating gene expression in the transcription level. More and more studies have found that miRNAs are correlated with EGFR-TKIs secondary resistance. MiRNAs may serve as novel targets to circumvent the resistance and promising predictive biomarkers for EGFR-TKIs. In this paper, we reviewed briefly advanced research on miRNAs and EGFR-TKIs secondary resistance in NSCLC.
Insights
MicroRNAs (miRNAs) are linked to drug resistance in non-small cell lung cancer (NSCLC) treated with epidermal growth factor receptor (EGFR) inhibitors. Targeting miRNAs may overcome resistance and predict treatment success.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Lung cancer is a major global cause of cancer mortality.
- The epidermal growth factor receptor (EGFR) pathway is crucial in lung cancer development.
- EGFR-tyrosine kinase inhibitors (EGFR-TKIs) are used for non-small cell lung cancer (NSCLC) with EGFR mutations.
Purpose of the Study:
- To review the role of microRNAs (miRNAs) in acquired resistance to EGFR-TKIs in NSCLC.
- To explore miRNAs as potential therapeutic targets and predictive biomarkers for EGFR-TKI resistance.
Main Methods:
- Literature review of recent research on miRNAs and EGFR-TKI resistance in NSCLC.
- Analysis of studies investigating the correlation between miRNA expression and drug resistance.
Main Results:
- Acquired resistance to EGFR-TKIs is a significant clinical challenge in NSCLC treatment.
- MiRNAs are increasingly recognized for their involvement in the mechanisms of EGFR-TKI secondary resistance.
- Evidence suggests miRNAs can modulate sensitivity to EGFR-TKIs.
Conclusions:
- MiRNAs represent promising novel targets to overcome EGFR-TKI resistance in NSCLC.
- MiRNAs may serve as valuable predictive biomarkers for patient response to EGFR-TKIs.
- Further research into miRNA-based strategies is warranted for improved NSCLC therapy.
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