Abstract

Cerebral ischemia/reperfusion injury (CIRI) can lead to increased vascular endothelial permeability and blood-brain barrier damage in patients with stroke. G protein-coupled receptor 4 (GPR4) is a functional pH sensor that plays a key role in renal ischemia-reperfusion-induced apoptosis. However, whether GPR4 has a role in cerebral ischemia remains to be further studied. Our study found that after oxygen-glucose deprivation/reoxygenation (OGD/R) treatment, the levels of GPR4 and CHOP in SH-SY5Y cells were significantly increased, which was accompanied by a decrease in cell viability, and an increase in LDH release and apoptosis. After knockdown of GPR4 using shRNA, CHOP levels in SH-SY5Y cells were also decreased, which unexpectedly increased cell activity and decreased LDH release and apoptosis rate. Interestingly, CHOP overexpression reversed the effect of GPR4 knockdown, suggesting that OGD/R-induced CIRI may involve endoplasmic reticulum stress-related apoptosis. In conclusion, our study provided a basis for further research on the mechanism of CIRI.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.