Cancer Drug ResistanceTherapeutics
KEAP1-NRF2 Pathway as a Novel Therapeutic Target for EGFR-Mutant NSCLC
Tuberculosis and Respiratory Diseases 2025-01-01
Jae-Sun Choi, Seung Hyeun Lee
Abstract
This study elucidates the KEAP1-NRF2 pathway as a potential therapeutic target for EGFR-mutant NSCLC. NRF2 expression was enhanced in gefitinib-resistant cells. NRF2 inhibition with brusatol enhanced osimertinib-induced cell death and potentiated tumor growth inhibition in xenograft model.
Key Findings
- NRF2 is elevated in gefitinib-resistant EGFR-mutant NSCLC cells
- Brusatol causes dose-dependent NRF2 downregulation and cell death
- NRF2 inhibition synergizes with osimertinib
- Establishes NRF2 modulation as strategy to overcome EGFR-TKI resistance
Clinical Significance
Addresses critical unmet need of EGFR-TKI resistance in lung cancer. Provides rationale for combination trials of NRF2 inhibitors with existing targeted therapies.
Citation
Choi, J.S. et al. (2025). KEAP1-NRF2 in EGFR-Mutant NSCLC. Tuberculosis and Respiratory Diseases.
DOI: 10.4046/trd.2024.0087