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Updated: Jun 13, 2025

Techniques to Induce and Quantify Cellular Senescence
Published on: May 1, 2017
Genetic and Epigenetic Interactions Involved in Senescence of Stem Cells
Florin Iordache1,2, Adriana Cornelia Ionescu Petcu1, Diana Mihaela Alexandru3
1Biochemistry Disciplines, Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine, 050097 Bucharest, Romania.
Abstract:
Cellular senescence is a permanent condition of cell cycle arrest caused by a progressive shortening of telomeres defined as replicative senescence. Stem cells may also undergo an accelerated senescence response known as premature senescence, distinct from telomere shortening, as a response to different stress agents. Various treatment protocols have been developed based on epigenetic changes in cells throughout senescence, using different drugs and antioxidants, senolytic vaccines, or the reprogramming of somatic senescent cells using Yamanaka factors. Even with all the recent advancements, it is still unknown how different epigenetic modifications interact with genetic profiles and how other factors such as microbiota physiological conditions, psychological states, and diet influence the interaction between genetic and epigenetic pathways. The aim of this review is to highlight the new epigenetic modifications that are involved in stem cell senescence. Here, we review recent senescence-related epigenetic alterations such as DNA methylation, chromatin remodeling, histone modification, RNA modification, and non-coding RNA regulation outlining new possible targets for the therapy of aging-related diseases. The advantages and disadvantages of the animal models used in the study of cellular senescence are also briefly presented.
Insights
Cellular senescence, a key aging process, involves epigenetic changes in stem cells. This review highlights new epigenetic targets for treating age-related diseases.
Area of Science:
- Gerontology and Epigenetics
- Stem Cell Biology
- Molecular Biology
Background:
- Cellular senescence is a permanent cell cycle arrest, with replicative senescence linked to telomere shortening and premature senescence to stress.
- Current treatments for senescence target epigenetic changes, including drugs, senolytics, and somatic cell reprogramming.
- The complex interplay between genetic profiles, epigenetic modifications, and external factors like microbiota and diet in senescence remains unclear.
Purpose of the Study:
- To review recent epigenetic modifications involved in stem cell senescence.
- To identify novel therapeutic targets for aging-related diseases based on senescence-associated epigenetic alterations.
Main Methods:
- Literature review of recent studies on cellular senescence and epigenetics.
- Focus on DNA methylation, chromatin remodeling, histone modification, RNA modification, and non-coding RNA regulation.
- Brief overview of animal models used in senescence research.
Main Results:
- Detailed examination of various epigenetic alterations in stem cell senescence.
- Identification of specific epigenetic mechanisms influencing senescence pathways.
- Discussion of potential therapeutic strategies targeting these epigenetic modifications.
Conclusions:
- Epigenetic modifications play a crucial role in stem cell senescence.
- Understanding these epigenetic changes offers new avenues for therapeutic interventions in aging.
- Further research is needed to elucidate the intricate interactions influencing senescence.
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