Cited by 78Epigenetics and DNA MethylationGenetics, Aging, and Longevity in Model OrganismsAntioxidants, Aging, Portulaca oleracea

Prevention of age-related changes in hippocampal levels of 5-methylcytidine by caloric restriction

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Chouliaras, Leonidas, van den Hove, Daniel L.A., Kenis, Gunter, Keitel, Stella, Hof, Patrick R., van Os, Jim, Steinbusch, Harry W.M., Schmitz, Christoph +1 more·2012·Neurobiology of Aging

Abstract

Aberrant DNA methylation patterns have been linked to molecular and cellular alterations in the aging brain. Caloric restriction (CR) and upregulation of antioxidants have been proposed as interventions to prevent or delay age-related brain pathology. Previously, we have shown in large cohorts of aging mice, that age-related increases in DNA methyltransferase 3a (Dnmt3a) immunoreactivity in the mouse hippocampus were attenuated by CR, but not by overexpression of superoxide dismutase 1 (SOD1). Here, we investigated age-related alterations of 5-methylcytidine (5-mC), a marker of DNA methylation levels, in a hippocampal subregion-specific manner. Examination of 5-mC immunoreactivity in 12- and 24-month-old wild type (WT) mice on control diet, mice overexpressing SOD1 on control diet, wild type mice on CR, and SOD1 mice on CR, indicated an age-related increase in 5-mC immunoreactivity in the hippocampal dentate gyrus, CA3, and CA1-2 regions, which was prevented by CR but not by SOD1 overexpression. Moreover, positive correlations between 5-mC and Dnmt3a immunoreactivity were observed in the CA3 and CA1-2. These findings suggest a crucial role for DNA methylation in hippocampal aging and in the mediation of the beneficial effects of CR on aging.

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Crossref · 10.1016/j.neurobiolaging.2011.06.003

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  1. Mastroeni D Grover A Delvaux E Whiteside C Coleman PD Rogers J Epigenetic changes in Alzheimer’s disease: decrements in DNA methylation Neurobiol. Aging 2011 31 2025 2037 19117641 PMC2962691

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Authors
Chouliaras, L., van den Hove, D. L. A., Kenis, G., Keitel, S., Hof, P. R., van Os, J., Steinbusch, H. W. M., Schmitz, C., & Rutten, B. P. F.
Affiliations
  • Maastricht University Medical Centre (NL)
  • Icahn School of Medicine at Mount Sinai (US)
  • Anatomische Anstalt (DE)
Corresponding author
Rutten, Bart P.F.
Venue
Neurobiology of Aging
Publisher
Elsevier BV
Published
2012-08
Volume
33
Issue
8
Pages
1672-1681
ISSN
0197-4580 (ISSN-L)
OpenAlex
W2068128042
Cited by
78
References
89
Citations by year
2026: 2 · 2025: 2 · 2024: 3 · 2023: 5 · 2022: 4 · 2021: 1 · 2020: 4 · 2019: 2 · 2018: 9 · 2017: 6 · 2016: 2 · 2015: 10 · 2014: 8 · 2013: 8 · 2012: 12
FWCI
3.61
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Aging (publishedVersion)
  • PubMed (publishedVersion)
  • Research Publications (Maastricht University) (publishedVersion, other-oa)
  • PubMed Central (acceptedVersion)
  • Research Publications (Maastricht University) (submittedVersion, other-oa)
Funders
  • Internationale Stichting Alzheimer Onderzoek (09552, 07551)
  • Marie Curie Host Fellowship (MC-EST 020589)
  • NIH (P50 AG05138)
  • NWO (91106003)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Antioxidants, Aging, Portulaca oleracea
Keywords
caloric restriction, DNA methylation, 5-methylcytidine, hippocampus, brain aging, DNMT3A, superoxide dismutase 1, dentate gyrus, CA3, hippocampal subfields
MeSH terms
Superoxide Dismutase-1, DNA Methyltransferase 3A, Aging, Animals, Cytidine, Hippocampus, Male, Mice, Inbred C57BL, Mice, Transgenic, Superoxide Dismutase, DNA Methylation, Caloric Restriction, Mice

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