NCOA4-driven ferritinophagy and GSH reprogramming underlie maslinic acid-induced ferroptosis and autophagy in breast cancer. (PubMed, Transl Cancer Res)
Additionally, co-treatment with the autophagy inhibitor chloroquine (CQ) attenuated MA-induced FTH1 downregulation and rescued MA-induced inhibition of cell viability in MDA-MB-231 cells...Bioinformatics analysis identified key hub genes associated with MA-induced autophagy, including tumor protein p53 (TP53), heat shock protein 90 alpha family class a member 1 (HSP90AA1), AKT serine/threonine kinase 1 (AKT1), mTOR, tumor necrosis factor (TNF), interleukin 6 (IL6), epidermal growth factor receptor (EGFR) and BCL2 apoptosis regulator (BCL2), as well as hub genes related to ferroptosis, such as mitogen-activated protein kinase 3 (MAPK3), RELA proto-oncogene (RELA), epidermal growth factor receptor (EGFR), prostaglandin-endoperoxide synthase 2 (PTGS2), SRC proto-oncogene (SRC), interleukin 1 beta (IL1B), interleukin 6 (IL6), and peroxisome proliferator activated receptor gamma (PPARG). In MDA-MB-231 cells, MA triggered autophagy through p53 upregulation and mTOR signaling inhibition, and induced ferroptosis by reprogramming GSH metabolism and activating the NCOA4-mediated ferritinophagy pathway, lead to FTH1 degradation.