Inhibiting the interaction between apoptosis inducing factor and cyclophilin a prevents brain injury in neonatal mice after hypoxia-ischemia.

Inhibiting the interaction between apoptosis inducing factor and cyclophilin a prevents brain injury in neonatal mice after hypoxia-ischemia. Neuropharmacology. 2020 Apr 08;:108088 Authors: Rodriguez J, Xie C, Li T, Sun Y, Wang Y, Xu Y, Li K, Zhang S, Zhou K, Wang Y, Mallard C, Hagberg H, Doti N, Wang X, Zhu C Abstract The interaction between apoptosis-inducing factor (AIF) and cyclophilin A (CypA) has been shown to contribute to caspase-independent apoptosis. Blocking the AIF/CypA interaction protects against glutamate-induced neuronal cell death in vitro, and the purpose of this study was to determine the in vivo effect of an AIF/CypA interaction blocking peptide (AIF(370-394)-TAT) on neonatal mouse brain injury after hypoxia ischemia (HI). The pups were treated with AIF (370-394)-TAT peptide intranasally prior to HI. Brain injury was significantly reduced at 72 h after HI in the AIF(370-394)-TAT peptide treatment group compared to vehicle-only treatment for both the gray matter and the subcortical white matter, and the neuroprotection was more pronounced in males than in females. Neuronal cell death was evaluated in males at 8 h and 24 h post-HI, and it was decreased significantly in the CA1 region of the hippocampus and the nucleus habenularis region after AIF(370-394)-TAT treatment. Caspase-independent apoptosis was decreased in the cortex, striatum, and nucleus habenularis after AIF(370-394)-TAT treatment, but no signific...
Source: Neuropharmacology - Category: Drugs & Pharmacology Authors: Tags: Neuropharmacology Source Type: research