Lopinavir enhances anoikis by remodeling autophagy in a circRNA-dependent manner.

ABSTRACT: Macroautophagy/autophagy-mediated anoikis resistance is crucial for tumor metastasis. As a key autophagy-related protein, ATG4B has been demonstrated to be a prospective anti-tumor target. However, the existing ATG4B inhibitors are still far from clinical application, especially for tumor metastasis. In this study, we identified a novel circRNA, circSPECC1, that interacted with ATG4B. CircSPECC1 facilitated liquid-liquid phase separation of ATG4B, which boosted the ubiquitination and degradation of ATG4B in gastric cancer (GC) cells. Thus, pharmacological addition of circSPECC1 may serve as an innovative approach to suppress autophagy by targeting ATG4B. Specifically, the circSPECC1 underwent significant m⁶A modification in GC cells and was subsequently recognized and suppressed

SUBMITTER: Wu Y 

PROVIDER: S-EPMC11210930 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature