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Mech Ageing Dev. 2018 Dec;176:19-23. doi: 10.1016/j.mad.2018.10.005. Epub 2018 Nov 3.

Caloric restriction and cellular senescence.

Author information

1
Charles Perkins Centre and Central Clinical School, The University of Sydney, Australia; Department of Medicine, Washington University School of Medicine, St. Louis, USA; Department of Clinical and Experimental Sciences, Brescia University, Brescia, Italy. Electronic address: luigi.fontana@sydney.edu.au.
2
University of Groningen, European Research Institute for the Biology of Aging, University Medical Center Groningen, Groningen, Netherlands; Lebanese University, Doctoral School of Science and Technology, Hadath, Beirut, Lebanon.
3
University of Groningen, European Research Institute for the Biology of Aging, University Medical Center Groningen, Groningen, Netherlands. Electronic address: m.demaria@umcg.nl.

Abstract

Cellular senescence is a state of irreversible growth arrest characterized by hypertrophy and secretion of various bioactive molecules, a phenomenon defined the Senescence-Associated Secretory Phenotype (SASP). Senescent cells are implicated in a number of biological functions, from embryogenesis to aging. Significantly, excessive accumulation of senescent cells is associated to a decline of regenerative capacity and chronic inflammation. In accordance, the removal of senescent cells is sufficient to delay several pathologies and promote healthspan. Calorie restriction (CR) without malnutrition is currently the most effective non-genetic intervention to delay aging phenotypes. Recently, we have shown that CR can prevent accumulation of senescent cells in both mice and humans. Here, we summarize the current knowledge on the molecular and cellular events associated with CR, and define how these events can interfere with the induction of cellular senescence. We discuss the potential side effects of preventing senescence, and the possible alternative dietary interventions with potential senolytic properties.

PMID:
30395873
DOI:
10.1016/j.mad.2018.10.005
[Indexed for MEDLINE]

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