This study investigated the functional impact of recurrent mutations in cervical cancer. Using whole-exome sequencing, cell models, and in vivo experiments, researchers identified the PIK3CA-E545K mutation as frequently occurring. This specific mutation was shown to enhance tumor cell proliferation and invasion while suppressing apoptosis. These effects are mediated by sustained activation of the AKT/mTOR signaling pathway. The findings suggest that targeting the PI3K/AKT/mTOR axis could represent a promising therapeutic strategy for this cancer.
This study investigates histologic transformation to lung squamous cell carcinoma (LUSC) in EGFR-mutant lung adenocarcinoma (LUAD) patients, an underrecognized resistance mechanism. Multiomic analyses revealed that patients with transforming or adenosquamous (LUAS) phenotypes experienced shorter overall survival on first-line osimertinib. Inactivation of the retinoblastoma (Rb) pathway, particularly via CDKN2A/B deletions, was identified as a key driver of this transformation. Furthermore, MET pathway upregulation was observed, and combined EGFR and MET inhibition demonstrated efficacy in preclinical models. These findings suggest novel strategies to counteract this aggressive form of resistance.