Cited by 101Reproductive Biology and FertilityTelomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model Organisms

The DOI matches its Crossref record; 92 of the 93 references it cites were found in a registry or an index.

Cellular hallmarks of aging emerge in the ovary prior to primordial follicle depletion

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Abstract

Decline in ovarian reserve with advancing age is associated with reduced fertility and the emergence of metabolic disturbances, osteoporosis, and neurodegeneration. Recent studies have provided insight into connections between ovarian insufficiency and systemic aging, although the basic mechanisms that promote ovarian reserve depletion remain unknown. Here, we sought to determine if chronological age is linked to changes in ovarian cellular senescence, transcriptomic, and epigenetic mechanisms in a mouse model. Histological assessments and transcriptional analyses revealed the accumulation of lipofuscin aggresomes and senescence-related transcripts (Cdkn1a, Cdkn2a, Pai-1 and Hmgb1) significantly increased with advancing age. Transcriptomic profiling and pathway analyses following RNA sequencing, revealed an upregulation of genes related to pro-inflammatory stress and cell-cycle inhibition, whereas genes involved in cell-cycle progression were downregulated; which could be indicative of senescent cell accumulation. The emergence of these senescence-related markers preceded the dramatic decline in primordial follicle reserve observed. Whole Genome Oxidative Bisulfite Sequencing (WGoxBS) found no genome-wide or genomic context-specific DNA methylation and hydroxymethylation changes with advancing age. These findings suggest that cellular senescence may contribute to ovarian aging, and thus, declines in ovarian follicular reserve. Cell-type-specific analyses across the reproductive lifespan are needed to fully elucidate the mechanisms that promote ovarian insufficiency.

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  1. te Velde, 1998, Developmental and endocrine aspects of normal ovarian aging, Mol. Cell. Endocrinol., 145, 67, 10.1016/S0303-7207(98)00171-3 · DOI

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Metadata

Authors
Ansere, V. A., Ali-Mondal, S., Sathiaseelan, R., Garcia, D. N., Isola, J. V. V., Henseb, J. D., Saccon, T. D., Ocañas, S. R., Tooley, K. B., Stout, M. B., Schneider, A., & Freeman, W. M.
Affiliations
  • University of Oklahoma Health Sciences Center (US)
  • Universidade Federal de Pelotas (BR)
  • Oklahoma Medical Research Foundation (US)
Corresponding author
Freeman, Willard M.
Venue
Mechanisms of Ageing and Development
Publisher
Elsevier BV
Published
2021-03
Volume
194
Pages
111425
ISSN
0047-6374 (ISSN-L)
OpenAlex
W3117460981
Cited by
101
References
93
Citations by year
2026: 31 · 2025: 22 · 2024: 23 · 2023: 10 · 2022: 12 · 2021: 3
FWCI
4.68
Type
journal article
Language
en
Open access
Locations
  • Mechanisms of Ageing and Development (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • American Foundation for Aging Research
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
  • National Institute on Aging
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Reproductive Biology and Fertility
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
ovarian aging, cellular senescence, ovarian reserve, primordial follicle depletion, DNA methylation, hydroxymethylation, epigenetics, transcriptomics, oxidative bisulfite sequencing, p21, CDKN2A, plasminogen activator inhibitor-1, HMGB1, inflammation, cell cycle inhibition, mouse model
MeSH terms
Age Factors, Aging, Animals, Female, Ovarian Follicle, Mice, Inbred C57BL, Ovary, Cytokines, Primary Ovarian Insufficiency, Cellular Senescence, Cell Cycle Proteins, Inflammation Mediators, DNA Methylation, Gene Expression Profiling, Epigenesis, Genetic, Mice, Transcriptome, Ovarian Reserve

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