RESUMO
Objective To investigate the expression of ferroptosis-related proteins in the hippocampus in AD mice. Methods AD mice were created by knocking in PSEN1 p.G378E gene in C57BL/6 mice. The expression of ferroptosis-related proteins, glutathione peroxidase 4 (GPX4), cystine-glutamate exchanger (SLC7A11), long-chain fattyacyl-CoA synthetase 4 (ACSL4) and phosphatidylethanolamine-binding protein1 (PEBP1) in the hippocampus were compared among PSEN1 p.G378E-/-、 PSEN1 p.G378E-/+and WT mice. Results The expression levels of GPX4, PEBP1, SLC7A11 and ACSL4 proteins in the hippocampus were significantly increased in PSEN1 p.G378E-/-mice than in either PSEN1 p.G378E-/+or WT mice (P<0.05). Meanwhile, the expression levels of GPX4 and PSEN1 proteins were higher in PSEN1 p.G378E-/+mice than in WT mice (P<0.05). However, there were no significant differences in expression levels of SLC7A11 and ACSL4 proteins between PSEN1 p.G378E-/+mice and WT mice (P>0.05). Conclusion Expression levels of ferroptosis-related proteins are significantly increased in the hippocampus of PSEN1 p.G378E knock-in mice.