Research Paper Volume 13, Issue 5 pp 7180—7189
Neuroprotective effect of hydrogen sulfide against glutamate-induced oxidative stress is mediated via the p53/glutaminase 2 pathway after traumatic brain injury
- 1 Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, P.R. China
- 2 Department of Thyroid and Breast Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, P.R. China
Received: November 11, 2020 Accepted: January 4, 2021 Published: February 26, 2021
https://doi.org/10.18632/aging.202575How to Cite
Copyright: © 2021 Sun et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Several reports suggest that hydrogen sulfide (H2S) exerts multiple biological and physiological effects on the pathogenesis of traumatic brain injury (TBI). However, the exact molecular mechanism involved in this effect is not yet fully known. In this study, we found that H2S alleviated TBI-induced motor and spatial memory deficits, brain pathology, and brain edema. Moreover, sodium hydrosulfide (NaHS), an H2S donor, treatment markedly increased the expression of Bcl-2, while inhibited the expression of Bax and Cleaved caspase-3 in TBI-challenged rats. Tunnel staining also demonstrated these results. Treatment with NaHS significantly reduced the glutamate and glutaminase 2 (GLS-2) protein levels, and glutamate-mediated oxidative stress in TBI-challenged rats. Furthermore, we demonstrated that H2S treatment inhibited glutamate-mediated oxidative stress through the p53/GLS-2 pathway. Therefore, our results suggested that H2S protects brain injury induced by TBI through modulation of the glutamate-mediated oxidative stress in the p53/GLS-2 pathway-dependent manner.