gefitinib

The ELK3-SERPINE1-PCBP2 axis promotes GEF resistance in lung cancer by inhibiting ferroptosis, providing a potential new therapeutic strategy for overcoming chemoresistance.

Our study provides a prognostic assessment tool for GC based on EMT-related genes and offers novel insights into understanding the roles of EMT in GC progression and treatment resistance. These findings may aid in the development of precision therapy strategies for GC.

To our knowledge, ARIA is the largest real-world study of dacomitinib's efficacy and safety. Final analysis of this study showed substantial clinical efficacy of dacomitinib and revealed treatment patterns, such as starting dose, in the real world. Safety data were consistent with dacomitinib's known safety profile. These results support first-line dacomitinib use in Asian patients with EGFR mutation-positive advanced NSCLC.

P1, N=8, Completed, Precision Biotech Taiwan Corp.

In this large real-world comparative effectiveness study using target trial emulation, first-line osimertinib was associated with substantially prolonged OS and a favorable safety profile, including lower rates of severe infections and hospitalizations, compared with first-generation EGFR-TKIs in patients with metastatic EGFR-mutant NSCLC.

A 41-year-old male with metastatic lung adenocarcinoma received gefitinib as the first-line treatment. Drug binding dynamics simulation indicated reduced binding activity of osimertinib to L747_T751del and K754E mutation sites as compared to other third- or second-generation EGFR-targeted inhibitors. This study provides the first comprehensive investigation of the L747_T751del and in cis K754E mutation and its interaction with EGFR-targeted inhibitors, offering valuable clinical guidance for treating uncommon EGFR exon 19 mutations.

In this study, we found that EGFR-TKI, including gefitinib and osimertinib, impaired WWP2-mediated proteasomal degradation of LAPTM4B. These compounds synergistically enhance the efficacy of EGFR-TKIs in NSCLC models in vitro and in vivo, with minimal toxicity. Integrative analyses of patient tissue samples, cellular models, an animal model, and cancer databases highlight the critical role of the LAPTM4B-ATP1A1-lysosomal acidification axis in EGFR-TKI resistance, providing a promising therapeutic avenue for overcoming resistance in EGFR-mutant NSCLC.

erlotinib-, gefitinib-, and osimertinib-resistant HCC827 cell lines were established by exposing them to increasing EGFR-TKIs concentrations. A nomogram (C-index = 0.7) integrated RiskScore with clinical factors for personalized prognosis. This model bridges in vitro resistance mechanisms with clinical immune landscapes, offering a tool to stratify patients for EGFR-TKIs, immunotherapies, or combinatorial strategies.

Therapeutic targeting of this axis with the EGFR inhibitor gefitinib restored oxaliplatin sensitivity in vitro and synergistically suppressed RBM8A-driven xenograft growth in vivo. Additionally, single-cell RNA-seq revealed RBM8A enrichment in malignant gastric epithelial cells, while tissue microarrays confirmed that dual RBM8A/EGFR overexpression predicts the poorest survival outcomes. Collectively, our findings define the RBM8A-eIF4A3-EGFR axis as a druggable determinant of chemoresistance and establish RBM8A as both a prognostic biomarker and therapeutic target in GC.

To assess clinical relevance, blood samples from 109 gefitinib/erlotinib- and 54 osimertinib-treated patients were analyzed for these SNPs. These findings suggest that ABC transporter SNPs could be valuable biomarkers for personalized medicine in NSCLC. These findings suggest that ABC transporter SNPs may serve as valuable biomarkers for predicting EGFR-TKI efficacy in NSCLC patients with EGFR mutations, which will contribute to personalized medicine.

In vivo, mouse xenograft models confirmed that Remodelin significantly enhanced the antitumor efficacy of gefitinib. These findings suggest the potential of NAT10 as a therapeutic target to overcome EGFR-TKI resistance and improve treatment outcomes in patients with NSCLC.

Additionally, Nano-Gefitinib significantly increased M1 macrophage phenotype, evidenced by the upregulation in the immunoexpression of the CD68, in addition to increasing CD8 and caspase-3 and decreasing CD4, with VEGF immunoreactivity in the combination group. Gefitinib biosomes encouraged macrophage polarization, apoptosis, and reduced inflammation, with a subsequent decrease in tumor volume.