The central role of DNA damage in the ageing process

Björn Schumacher (), Joris Pothof, Jan Vijg and Jan H. J. Hoeijmakers
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Björn Schumacher: University of Cologne
Joris Pothof: Erasmus University Medical Center
Jan Vijg: Albert Einstein College of Medicine, Bronx
Jan H. J. Hoeijmakers: University of Cologne

Nature, 2021, vol. 592, issue 7856, 695-703

Abstract: Abstract Ageing is a complex, multifaceted process leading to widespread functional decline that affects every organ and tissue, but it remains unknown whether ageing has a unifying causal mechanism or is grounded in multiple sources. Phenotypically, the ageing process is associated with a wide variety of features at the molecular, cellular and physiological level—for example, genomic and epigenomic alterations, loss of proteostasis, declining overall cellular and subcellular function and deregulation of signalling systems. However, the relative importance, mechanistic interrelationships and hierarchical order of these features of ageing have not been clarified. Here we synthesize accumulating evidence that DNA damage affects most, if not all, aspects of the ageing phenotype, making it a potentially unifying cause of ageing. Targeting DNA damage and its mechanistic links with the ageing phenotype will provide a logical rationale for developing unified interventions to counteract age-related dysfunction and disease.

Date: 2021
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DOI: 10.1038/s41586-021-03307-7

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