Cited by 111Neurological Disorders and TreatmentsSirtuins and Resveratrol in MedicineNeurological Disease Mechanisms and Treatments

Resveratrol Prevents CA1 Neurons against Ischemic Injury by Parallel Modulation of Both GSK-3β and CREB through PI3-K/Akt Pathways

Simão, Fabrício, Matté, Aline, Pagnussat, Aline S., Netto, Carlos A., Salbego, Christianne G.·2012·European Journal of Neuroscience

Abstract

Accumulating evidence indicates that resveratrol potently protects against cerebral ischemia damage due to its oxygen free radicals scavenging and antioxidant properties. However, cellular mechanisms that may underlie the neuroprotective effects of resveratrol in brain ischemia are not fully understood yet. This study aimed to investigate the potential association between the neuroprotective effect of resveratrol and the apoptosis/survival signaling pathways, in particular the glycogen synthase kinase 3 (GSK‐3β) and cAMP response element‐binding protein (CREB) through phosphatidylinositol 3‐kinase (PI3‐K)‐dependent pathway. An experimental model of global cerebral ischemia was induced in rats by the four‐vessel occlusion method for 10 min and followed by different periods of reperfusion. Nissl staining indicated extensive neuronal death at 7 days after ischemia/reperfusion. Administration of resveratrol by i.p. injections (30 mg/kg) for 7 days before ischemia significantly attenuated neuronal death. Both GSK‐3β and CREB appear to play a critical role in resveratrol neuroprotection through the PI3‐K/Akt pathway, as resveratrol pretreatment increased the phosphorylation of Akt, GSK‐3β and CREB in 1 h in the CA1 hippocampus after ischemia/reperfusion. Furthermore, administration of LY294002, an inhibitor of PI3‐K, compromised the neuroprotective effect of resveratrol and decreased the level of p‐Akt, p‐GSK‐3β and p‐CREB after ischemic injury. Taken together, the results suggest that resveratrol protects against delayed neuronal death in the hippocampal CA1 by maintaining the pro‐survival states of Akt, GSK‐3β and CREB pathways. These data suggest that the neuroprotective effect of resveratrol may be mediated through activation of the PI3‐K/Akt signaling pathway, subsequently downregulating expression of GSK‐3β and CREB, thereby leading to prevention of neuronal death after brain ischemia in rats.

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Crossref · 10.1111/j.1460-9568.2012.08229.x

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  • As an antioxidant agent, RSV can scavenge free radicals and reduce ROS formation by inhibiting expression of NADPH and glycogen synthase kinase 3 beta proteins, and upregulating expression of antioxidant enzymes such as SOD2, CAT, GPx, and thioredoxin.

    “As an antioxidant agent, RSV can scavenge free radicals and reduce ROS formation, by inhibiting the expression of NADPH and glycogen synthase kinase 3 beta proteins, and upregulating the expression of some antioxidant enzymes, such as SOD2, CAT, GPx, and thioredoxin [320,339,340].”

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Authors
Simão, F., Matté, A., Pagnussat, A. S., Netto, C. A., & Salbego, C. G.
Affiliations
Universidade Federal do Rio Grande do Sul (BR)
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2012-07-22
Volume
36
Issue
7
Pages
2899-2905
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W1939636416
Cited by
111
References
45
Citations by year
2026: 3 · 2025: 6 · 2024: 10 · 2023: 5 · 2022: 7 · 2021: 11 · 2020: 7 · 2019: 3 · 2018: 4 · 2017: 9 · 2016: 10 · 2015: 15 · 2014: 10 · 2013: 7 · 2012: 3
FWCI
5.63
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Neurological Disorders and Treatments
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
resveratrol, neuroprotection, cerebral ischemia, ischemia-reperfusion injury, hippocampal CA1, GSK3β, CREB, PI3K/Akt signaling, Akt phosphorylation, neuronal cell death, delayed neuronal death, LY294002, four-vessel occlusion
MeSH terms
Glycogen Synthase Kinase 3 beta, Resveratrol, Phosphoinositide-3 Kinase Inhibitors, Animals, Brain Ischemia, Chromones, Male, Morpholines, Neurons, Phosphorylation, Stilbenes, Signal Transduction, Reperfusion Injury, Rats, Wistar, Apoptosis, Cyclic AMP Response Element-Binding Protein, Neuroprotective Agents, Phosphatidylinositol 3-Kinases, Glycogen Synthase Kinase 3, Proto-Oncogene Proteins c-akt, Rats, CA1 Region, Hippocampal

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