Circ_0002638 drives squamous cell lung cancer (LUSC) progression and chemotherapy resistance by inhibiting ferroptosis via SENP1-mediated deSUMOylation of ACSL4. - Wang DG; Wang J; Gao J; Ao YQ; Long X; Zhu SQ; Zeng ZH; Zhang LX; Chen SW; Pei X; Wu YB (Life sciences, 2025)