Genomic and Transcriptomic Analysis of Neuroendocrine Transformation in ALK-Rearranged Lung Adenocarcinoma After Treatments With Sequential ALK Inhibitors: A Brief Report.

ABSTRACT:

Introduction

Neuroendocrine (NE) transformation has been reported in patients with ALK-rearranged NSCLC after ALK inhibition, but unlike EGFR-mutant NSCLC, the exact mechanism of NE transformation in ALK-rearranged NSCLC is poorly studied.

Methods

We collected the matched pre- and post-transformation samples from a patient with ALK-rearranged lung adenocarcinoma (LUAD) and performed targeted panel sequencing, whole exome sequencing, and bulk RNA sequencing.

Results

Multiple mutations were shared between the pretransformation and post-transformation samples. Neither RB1 nor TP53 mutation was detected, but CDKN2A deletion and CDK4 amplification were found instead. Mismatch repair-associated mutational signature was

SUBMITTER: Huang J 

PROVIDER: S-EPMC9168149 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature