Cited by 123Cardiac Ischemia and ReperfusionMitochondrial Function and PathologySirtuins and Resveratrol in Medicine

Mechanism for resveratrol-induced cardioprotection against reperfusion injury involves glycogen synthase kinase 3β and mitochondrial permeability transition pore

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Xi, Jinkun, Wang, Huihua, Mueller, Robert A., Norfleet, Edward A., Xu, Zhelong·2009·European Journal of Pharmacology

Abstract

Resveratrol pretreatment can protect the heart by inducing pharmacological preconditioning. Whether resveratrol protects the heart when applied at reperfusion remains unknown. We examined the effect of resveratrol on myocardial infarct size when given at reperfusion and investigated the mechanism underlying the effect. Isolated rat hearts were subjected to 30 min ischemia followed by 2 h of reperfusion, and myocardial samples were collected from the risk zone for Western blot analysis. Mitochondrial swelling was spectrophotometrically measured as a decrease in absorbance at 520 nm (A(520)). Resveratrol reduced infarct size and prevented cardiac mitochondrial swelling. Resveratrol enhanced GSK-3beta phosphorylation upon reperfusion, an effect that was mediated by the cyclic guanosine monophosphate (cGMP)/protein kinase G (PKG) pathway. Resveratrol translocated GSK-3beta from cytosol to mitochondria via the cGMP/PKG pathway. Further studies showed that mitochondrial GSK-3beta was co-immunoprecipitated with cyclophilin D but not with VDAC (voltage dependent anion channel) or ANT (adenine nucleotide translocator). These data suggest that resveratrol prevents myocardial reperfusion injury presumably by targeting the mPTP through translocation of GSK-3beta from cytosol to mitochondria. Translocated GSK-3beta may ultimately interact with cyclophilin D to modulate the mPTP opening.

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Authors
Xi, J., Wang, H., Mueller, R. A., Norfleet, E. A., & Xu, Z.
Affiliations
University of North Carolina at Chapel Hill (US)
Corresponding author
Xu, Zhelong
Venue
European Journal of Pharmacology
Publisher
Elsevier BV
Published
2009-02
Volume
604
Issue
1-3
Pages
111-116
ISSN
0014-2999 (ISSN-L)
OpenAlex
W1990435925
Cited by
123
References
43
Citations by year
2026: 3 · 2025: 1 · 2024: 3 · 2023: 3 · 2022: 5 · 2021: 10 · 2020: 6 · 2019: 4 · 2018: 9 · 2017: 8 · 2016: 4 · 2015: 11 · 2014: 7 · 2013: 7 · 2012: 11
FWCI
7.33
Type
journal article
Language
en
Open access
Locations
  • European Journal of Pharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (R01HL08336, R01HL083362)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Cardiac Ischemia and Reperfusion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
Keywords
resveratrol, cardioprotection, myocardial ischemia-reperfusion injury, glycogen synthase kinase-3β, mitochondrial permeability transition pore, cyclophilin D, mitochondrial swelling, infarct size, mitochondrial translocation, ischemia-reperfusion
MeSH terms
Glycogen Synthase Kinase 3 beta, Resveratrol, Mitochondrial Permeability Transition Pore, Animals, Cardiotonic Agents, Male, Mitochondria, Heart, Mitochondrial Swelling, Myocardial Infarction, Stilbenes, Blotting, Western, Myocardial Reperfusion Injury, Rats, Wistar, Myocytes, Cardiac, Mitochondrial Membrane Transport Proteins, Glycogen Synthase Kinase 3, Immunoprecipitation, Rats, In Vitro Techniques

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