Cited by 18Sirtuins and Resveratrol in MedicineChromosomal and Genetic VariationsEpigenetics and DNA Methylation

Resveratrol blocks retrotransposition of LINE-1 through PPAR α and sirtuin-6

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Okudaira, Noriyuki, Ishizaka, Yukihito, Tamamori-Adachi, Mimi·2022·Scientific Reports

Abstract

The retroelement long interspersed element-1 ( LINE-1 or L1) comprises about 17% of the human genome. L1 retrotransposition is known to cause genomic instability and related disorders, and resveratrol suppresses this retrotransposition; however, the underlying mechanism is still not elucidated. Recent observations showed that low-molecular-weight compounds might induce L1 retrotransposition through unknown mechanisms. This study aimed to determine polyphenol resveratrol (RV)’s effect on L1-RTP (retrotransposition) in somatic cells. Surprisingly, RV completely blocked L1-RTP. Experiments using the PPARα inhibitor GW6471 or siRNA-mediated PPARα depletion showed that RV-mediated L1-RTP’s inhibition depended on peroxisome proliferator-activated receptor α (PPARα). We demonstrated that RV inhibits p38 and cAMP response element binding protein phosphorylation, which are involved in MAPK signaling, and the L1-ORF1 protein’s chromatin recruitment. Furthermore, RV increased the expression of sirtuin-6 (SIRT6), which inhibited the activation of L1. The sirtuins family, SIRT1, SIRT6, and SIRT7, but not SIRT3, are involved in RV-mediated inhibition of L1-RTP. Overall, our findings suggest that RV directly modulates PPARα-mediated L1-RTP in somatic cells and that MAPK signaling interacts with SIRT6 closely and may play a role in preventing human diseases such as cancer.

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Authors
Okudaira, N., Ishizaka, Y., & Tamamori-Adachi, M.
Affiliations
  • Teikyo University (JP)
  • National Center for Global Health and Medicine (JP)
Corresponding author
Okudaira, Noriyuki
Venue
Scientific Reports
Published
2022-05-11
Volume
12
Issue
1
Pages
7772-7772
ISSN
2045-2322 (ISSN-L)
OpenAlex
W4280492450
Cited by
18
References
53
Citations by year
2026: 4 · 2025: 6 · 2024: 5 · 2023: 2 · 2022: 1
FWCI
2.00
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
Japan Society for the Promotion of Science KAKENHI (20K05943)
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
Keywords
resveratrol, LINE-1 retrotransposition, retrotransposons, PPARα, SIRT6, MAPK signaling, p38 phosphorylation, CREB phosphorylation, ORF1 protein, chromatin recruitment, somatic cells, genomic instability, polyphenols
MeSH terms
Resveratrol, Humans, Retroelements, Long Interspersed Nucleotide Elements, Sirtuins, PPAR alpha, Sirtuin 1

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