Research Paper Volume 16, Issue 2 pp 1767—1780

Tremella fuciformis polysaccharides induce ferroptosis in Epstein–Barr virus-associated gastric cancer by inactivating NRF2/HO-1 signaling

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Figure 1. EBV-infected AGS and MKN45 cells are sensitive to erastin-induced ferroptosis. EBV-infected AGS and MKN45 cells were preincubated with 1 μM Fer-1 for 1 h and then treated with or without 10 μM erastin for 24 h. (A) CCK-8 assay demonstrated that erastin reduced EBV-infected AGS and MKN45 cell viability, but Fer-1 partially abolished these effects. The erastin-induced upregulation of MDA (B) and Fe2+ (C) levels was reversed by Fer-1 pretreatment in both EBV-infected AGS and MKN45 cells. (D) Erastin decreased intracellular GSH levels, but Fer-1 elevated GSH levels in EBV-infected AGS and MKN45 cells. *p<0.05, **p<0.01, ***p<0.001 vs. DMSO; #p<0.05, ##p<0.01, ###p<0.001 vs. erastin.