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Stress, cell senescence and organismal ageing

Lookup NU author(s): Dr Joao Passos



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


© 2017 The Authors. Cellular senescence was first described by Hayflick and Moorhead in the 1960s as the irreversible arrest of cells following prolonged cultivation. Telomere shortening is the key mechanism driving replicative senescence in human fibroblasts. Later, pioneering work by Olivier Toussaint and others showed that stress plays a major role in the induction of senescence in vitro, a phenomenon known as stress-induced premature senescence or SIPS. It is also now widely accepted that senescence plays a role in vivo. An emerging body of evidence from animal models, and particularly mice, has demonstrated an important role for senescence in several processes such as embryonic development, wound healing, tumour suppression and ageing. However, mostly due to a lack of availability of tissues and specific markers, less is known about the importance of cell senescence in humans. In this review, we summarize some of the key findings in the field of senescence, stress-induced senescence and telomeres. We focus particularly on the role of telomere dysfunction and senescence during the ageing process as well as potential interventions, including pharmacological approaches like telomerase activators and senolytics, to counteract their detrimental effects in ageing and disease.

Publication metadata

Author(s): de Magalhaes JP, Passos JF

Publication type: Article

Publication status: Published

Journal: Mechanisms of Ageing and Development

Year: 2018

Volume: 170

Pages: 2-9

Print publication date: 01/03/2018

Online publication date: 05/07/2017

Acceptance date: 04/07/2017

Date deposited: 24/07/2017

ISSN (print): 0047-6374

ISSN (electronic): 1872-6216

Publisher: Elsevier Ireland Ltd


DOI: 10.1016/j.mad.2017.07.001


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Funder referenceFunder name
Leverhulme Trust (RPG-2016-015)
LongeCity and the Methuselah Foundation.
Wellcome Trust (104978/Z/14/Z)