Evidence map›Paper›PMID 12034823›Full record

ArticleNucleic acids research2002

Epigenetic regulation of an IAP retrotransposon in the aging mouse: progressive demethylation and de-silencing of the element by its repetitive induction.

Willy Barbot, Anne Dupressoir, Vladimir Lazar, Thierry Heidmann

Open access · bronzeAbstract read
In one paragraph

Article in Nucleic acids research, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
6.1field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

50 citing papers in PubMed, 113 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Epigenetics, Microbiome and Personalized Medicine: Focus on Kidney Disease.International journal of molecular sciences · 2024
    Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Human endogenous retroviruses in development and disease.Computational and structural biotechnology journal · 2021
    Review
  11. SIRT6 Through the Brain Evolution, Development, and Aging.Frontiers in aging neuroscience · 2021
    Article
  12. Review
  13. Ageing,The Malaysian journal of medical sciences : MJMS · 2020
    Review
  14. Review
  15. New Insights into Chronological Mobility of Retrotransposons In Vivo.Oxidative medicine and cellular longevity · 2019
    Article
  16. The Retrotransposon storm and the dangers of a Collyer's genome.Current opinion in genetics & development · 2018
    Review
  17. Review
  18. Epigenetics: Linking Nutrition to Molecular Mechanisms in Aging.Preventive nutrition and food science · 2017
    Review
  19. Article
  20. Viral component of the human genome.Molecular biology · 2017
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Willy BarbotUnité des Rétrovirus Endogènes et Eléments Rétroïdes des Eucaryotes Supérieurs, UMR 1573 CNRS, Institut Gustave Roussy, 39 rue Camille Desmoulins, 94805 Villejuif Cedex, France.
Anne Dupressoir
Vladimir Lazar
Thierry Heidmann
Centre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The recent insertion of a murine intracisternal A-particle (IAP) retrotransposon within one of the introns of a housekeeping gene, the circadian m.nocturnin gene, revealed a singular expression profile, both throughout the daytime and the mouse life span. Measurement of the levels of transcripts from this element by quantitative real-time RT-PCR, in organs of 1-24-month-old mice, disclosed that the inserted element--which is part of a large family of otherwise severely repressed mobile elements--becomes active upon aging, specifically in the liver where the m.nocturnin housekeeping gene is expressed in a circadian manner and induces a circadian expression of the IAP sequence. This age-dependent induction is cell-autonomous, as it persists in hepatocytes in primary culture. We further show, using methylation-sensitive enzymes, a correlation between the life-time kinetics of this process and a liver-specific demethylation of the IAP promoter. These results strongly support a model whereby the progressive demethylation and turning on of the IAP sequence is the sole result of the transient, daily activation-throughout the mouse life span--of its promoter. This phenomenon, which develops on a timescale of months to years in the aging mouse, might reveal a general epigenetic--and stochastic--process, which could account for a large series of events associated with cell and animal aging.

Indexed as

DNA MethylationGene SilencingAgingAnimalsCells, CulturedCircadian RhythmGenes, Intracisternal A-ParticleHepatocytesLiverMaleMiceMice, Inbred BALB CModels, GeneticNuclear ProteinsOrgan SpecificityPromoter Regions, GeneticnocturninNuclear ProteinsProteinsRetroelementsRNA, MessengerTranscription Factors

Identifiers

PMID12034823
PMCPMC117196
OpenAlexW2070940851

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.