Copied to clipboard!

RAF1 extrachromosomal DNA amplification confers acquired erlotinib resistance in NSCLC cell model

Despite their clinical significance, EGFR-directed therapies inevitably encounter drug resistance. This study demonstrates that ecDNA-mediated RAF1 amplification reactivates MAPK signaling independently of mutant EGFR, contributing to erlotinib resistance in EGFR-mutant NSCLC cell models. This finding identifies oncogenic amplification by ecDNA as a novel mechanism leading to erlotinib resistance, opening new avenues for therapeutic strategies in NSCLC.

Type: Cancer Genomics
Archiver: European Genome-phenome Archive (EGA)

1 Dataset

Click on a Dataset ID in the table below to learn more, and to find out who to contact about access to these data

Dataset ID	Description	Technology	Samples
EGAD50000002658	This dataset contains whole genome sequencing (WGS) and RNA sequencing (RNA-seq) FASTQ files from two PC9 NSCLC cell lines: erlotinib-resistant (PC9-ER-R) and erlotinib-sensitive parental (PC9-ER-S). A total of 4 paired-end FASTQ file pairs were generated using Illumina NovaSeq 6000, comprising 2 WGS and 2 RNA-seq libraries. Data were generated to investigate RAF1 ecDNA-mediated acquired erlotinib resistance mechanisms.	Illumina NovaSeq 6000	2