Cited by 207Epigenetics and DNA MethylationPancreatic function and diabetesGenomics and Chromatin Dynamics

Aging-Dependent Demethylation of Regulatory Elements Correlates with Chromatin State and Improved β Cell Function

Open access
Avrahami, Dana, Li, Changhong, Zhang, Jia, Schug, Jonathan, Avrahami, Ran, Rao, Shilpa, Stadler, Michael B., Burger, Lukas +3 more·2015·Cell Metabolism

Abstract

Aging is driven by changes of the epigenetic state that are only partially understood. We performed a comprehensive epigenomic analysis of the pancreatic β cell, key player in glucose homeostasis, in adolescent and very old mice. We observe a global methylation drift resulting in an overall more leveled methylome in old β cells. Importantly, we discover targeted changes in the methylation status of β cell proliferation and function genes that go against the global methylation drift, are specific to β cells, and correlate with repression of the proliferation program and activation of metabolic regulators. These targeted alterations are associated with specific chromatin marks and transcription factor occupancy in young β cells. Strikingly, we find β cell function improved in aged mice, as predicted by the changes in methylome and transcriptome. Thus, aging of terminally differentiated cells in mammals is not always coupled to functional decline.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.cmet.2015.07.025

Cites

33 of 33 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Age-associated DNA hypermethylation of some transcription factor binding sites suggests ability of these proteins to bind DNA and regulate transcription could be disrupted.

    “For example, age-associated DNA hypermethylation of some transcription factor binding sites (Avrahami et al., 2015; Sun et al., 2014; Yuan et al., 2015) suggests that the ability of these proteins to bind DNA and regulate transcription could be disrupted.”

    From The Aging Epigenome (2016) · cites this paper as Avrahami et al., 2015

  • In aged β cells, a significant correlation between DNA methylation and gene expression changes exists for distal regulatory regions (enhancers) but not proximal regulatory regions (promoters).

    “However, at least in the case of aged β cells, a significant correlation between DNA methylation and gene expression changes exists for distal regulatory regions (enhancers), but not proximal regulatory regions (promoters) (Avrahami et al., 2015).”

    From The Aging Epigenome (2016) · cites this paper as Avrahami et al., 2015

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Avrahami, D., Li, C., Zhang, J., Schug, J., Avrahami, R., Rao, S., Stadler, M. B., Burger, L., Schübeler, D., Glaser, B., & Kaestner, K. H.
Affiliations
  • Hadassah Medical Center (IL)
  • Children's Hospital of Philadelphia (US)
  • University of Pennsylvania (US)
  • Friedrich Miescher Institute (CH)
Corresponding author
Kaestner, Klaus H.
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2015-10
Volume
22
Issue
4
Pages
619-632
ISSN
1550-4131 (ISSN-L)
OpenAlex
W2142976933
Cited by
207
References
33
Citations by year
2026: 9 · 2025: 11 · 2024: 16 · 2023: 27 · 2022: 14 · 2021: 23 · 2020: 13 · 2019: 20 · 2018: 21 · 2017: 24 · 2016: 26 · 2015: 3
FWCI
10.72
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (1uc4dk104119-01)
  • U.S. Public Health Service (NIDDK 5T32DK007314)
  • National Institute of Diabetes and Digestive and Kidney Diseases (UC4DK116271, UC4-DK104119, R01DK098517, P30 DK 19525, P30DK019525, T32DK007314)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
Keywords
aging, DNA methylation, pancreatic beta cells, epigenetic drift, chromatin state, beta-cell function, beta-cell proliferation, glucose homeostasis, transcription factor occupancy, chromatin marks, transcriptome, terminal differentiation
MeSH terms
Insulin Secretion, Aging, Animals, Cells, Cultured, Chromatin, Enhancer Elements, Genetic, Histones, Insulin, Male, Mice, Inbred C57BL, Promoter Regions, Genetic, Protein Binding, Transcription Factors, CpG Islands, DNA Methylation, Cell Proliferation, Insulin-Secreting Cells, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review