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Approaches towards Longevity: Reprogramming, Senolysis, and Improved Mitotic Competence as Anti-Aging Therapies
Sofia Melo Pereira1,2, Rui Ribeiro3,4, Elsa Logarinho5,6,7
1Ageing and Aneuploidy Laboratory, IBMC, Instituto de Biologia Molecular e Celular, Universidade do Porto, 4200-135 Porto, Portugal. spereira@ibmc.up.pt.
Abstract:
Mainstream approaches that are currently used as anti-aging therapies primarily explore the senescence and epigenetic drift aging hallmarks and they are at two ends of the spectrum. While senolytic therapies include either the selective elimination of senescent cells or the disruption of their secretome with the use of drugs or natural compounds, cellular reprogramming uses genetic manipulation to revert cells all the way back to pluripotency. Here, we describe the progress that has been made on these therapies, while highlighting the major challenges involved. Moreover, based on recent findings elucidating the impact of mitotic shutdown and aneuploidy in cellular senescence, we discuss the modulation of mitotic competence as an alternative strategy to delay the hallmarks of aging. We propose that a regulated rise in mitotic competence of cells could circumvent certain limitations that are present in the senolytic and reprogramming approaches, by acting to decelerate senescence and possibly restore the epigenetic landscape.
Insights
This study explores anti-aging therapies like senolytics and cellular reprogramming. It proposes modulating mitotic competence as a novel strategy to slow aging and restore epigenetic landscape.
Area of Science:
- Gerontology and Cellular Biology
- Epigenetics and Aging Research
Background:
- Current anti-aging therapies focus on senescence and epigenetic drift.
- Senolytics eliminate senescent cells, while reprogramming reverts cells to pluripotency.
Purpose of the Study:
- To review progress and challenges in senolytic and reprogramming anti-aging therapies.
- To propose modulating mitotic competence as an alternative anti-aging strategy.
Main Methods:
- Review of current senolytic and cellular reprogramming approaches.
- Discussion of recent findings on mitotic shutdown and aneuploidy in senescence.
- Conceptual proposal for modulating mitotic competence.
Main Results:
- Senolytic and reprogramming therapies face significant challenges.
- Mitotic shutdown and aneuploidy impact cellular senescence.
- Modulating mitotic competence may offer a new anti-aging avenue.
Conclusions:
- A regulated increase in mitotic competence could overcome limitations of current anti-aging methods.
- This approach may decelerate senescence and restore the epigenetic landscape.
- Mitotic competence modulation presents a promising alternative strategy for aging delay.
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