Cited by 88Autophagy in Disease and TherapyMuscle Physiology and DisordersMitochondrial Function and Pathology

Resveratrol Ameliorates Mitophagy Disturbance and Improves Cardiac Pathophysiology of Dystrophin-deficient mdx Mice

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Kuno, Atsushi, Hosoda, Ryusuke, Sebori, Rio, Hayashi, Takashi, Sakuragi, Hiromi, Tanabe, Mika, Horio, Yoshiyuki·2018·Scientific Reports

Abstract

Autophagy activation improves the phenotype in mdx mice, a Duchenne muscular dystrophy (DMD) model, although the underlying mechanisms are obscure. We previously found that resveratrol, a strong inducer of autophagy, ameliorates the cardiac pathology of mdx mice. Autophagy could eliminate damaged mitochondria, a major source of intracellular reactive oxygen species (ROS), although there is no evidence for mitochondriopathy in dystrophic cardiomyopathy. To elucidate resveratrol’s function, we investigated the deletion of mitochondrial DNA (mtDNA), autophagy of damaged mitochondria (mitophagy), and ROS accumulation in the mdx mouse heart. Low levels of normal mtDNA and abnormal accumulations of mitochondria-containing autophagosomes were found in the mdx mouse heart. Administering resveratrol to mdx mice for 56 weeks ameliorated the cardiomyopathy, with significant reductions in the amount of mtDNA deletion, the number of mitochondria-containing autophagosomes, and the ROS levels. Resveratrol induced nuclear FoxO3a accumulation and the expression of autophagy-related genes, which are targets of FoxOs. The most effective dose in mdx mice was 0.4 g resveratrol/kg food. In conclusion, resveratrol improved cardiomyopathy by promoting mitophagy in the mdx mouse heart. We propose that acquired mitochondriopathy worsens the pathology of DMD and is a potential therapeutic target for the cardiomyopathy in DMD patients.

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Authors
Kuno, A., Hosoda, R., Sebori, R., Hayashi, T., Sakuragi, H., Tanabe, M., & Horio, Y.
Affiliations
Sapporo Medical University (JP)
Corresponding author
Kuno, Atsushi
Venue
Scientific Reports
Published
2018-10-22
Volume
8
Issue
1
Pages
15555-15555
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2896564721
Cited by
88
References
40
Citations by year
2026: 6 · 2025: 12 · 2024: 12 · 2023: 7 · 2022: 14 · 2021: 14 · 2020: 17 · 2019: 5
FWCI
7.03
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Japan Research Foundation for Clinical Pharmacology
  • Suhara Memorial Foundation
  • Japan Society for the Promotion of Science (18K06965, 15K08312)
Topics
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
resveratrol, mitophagy, Duchenne muscular dystrophy, mdx mice, dystrophic cardiomyopathy, mitochondrial DNA deletions, reactive oxygen species, FOXO3, autophagy, cardiac pathology
MeSH terms
Resveratrol, Animals, Antioxidants, Cardiotonic Agents, Disease Models, Animal, Myocardium, Dystrophin, Treatment Outcome, Reactive Oxygen Species, Mice, Inbred mdx, Muscular Dystrophy, Duchenne, Mitophagy

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