The right time for senescence

Cellular senescence is a highly complex and programmed cellular state with diverse and, at times, conflicting physiological and pathological roles across the lifespan of an organism. Initially considered a cell culture artifact, senescence evolved from an age-related circumstance to an intricate cel...

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Main Authors: Diogo Paramos-de-Carvalho, Antonio Jacinto, Leonor Saúde
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2021-11-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/72449
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author Diogo Paramos-de-Carvalho
Antonio Jacinto
Leonor Saúde
author_facet Diogo Paramos-de-Carvalho
Antonio Jacinto
Leonor Saúde
author_sort Diogo Paramos-de-Carvalho
collection DOAJ
description Cellular senescence is a highly complex and programmed cellular state with diverse and, at times, conflicting physiological and pathological roles across the lifespan of an organism. Initially considered a cell culture artifact, senescence evolved from an age-related circumstance to an intricate cellular defense mechanism in response to stress, implicated in a wide spectrum of biological processes like tissue remodelling, injury and cancer. The development of new tools to study senescence in vivo paved the way to uncover its functional roles in various frameworks, which are sometimes hard to reconcile. Here, we review the functional impact of senescent cells on different organismal contexts. We provide updated insights on the role of senescent cells in tissue repair and regeneration, in which they essentially modulate the levels of fibrosis and inflammation, discussing how “time” seems to be the key maestro of their effects. Finally, we overview the current clinical research landscape to target senescent cells and contemplate its repercussions on this fast-evolving field.
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spelling doaj.art-28587e67f11245f4ba9f5d67b7f05e292022-12-22T03:52:55ZengeLife Sciences Publications LtdeLife2050-084X2021-11-011010.7554/eLife.72449The right time for senescenceDiogo Paramos-de-Carvalho0https://orcid.org/0000-0003-2274-7167Antonio Jacinto1https://orcid.org/0000-0002-4193-6089Leonor Saúde2https://orcid.org/0000-0001-5933-8872Instituto de Medicina Molecular – João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal; CEDOC, NOVA Medical School, Faculdade de Ciências Médicas da Universidade Nova de Lisboa, Lisbon, PortugalCEDOC, NOVA Medical School, Faculdade de Ciências Médicas da Universidade Nova de Lisboa, Lisbon, PortugalInstituto de Medicina Molecular – João Lobo Antunes e Instituto de Histologia e Biologia do Desenvolvimento, Faculdade de Medicina da Universidade de Lisboa, Lisbon, PortugalCellular senescence is a highly complex and programmed cellular state with diverse and, at times, conflicting physiological and pathological roles across the lifespan of an organism. Initially considered a cell culture artifact, senescence evolved from an age-related circumstance to an intricate cellular defense mechanism in response to stress, implicated in a wide spectrum of biological processes like tissue remodelling, injury and cancer. The development of new tools to study senescence in vivo paved the way to uncover its functional roles in various frameworks, which are sometimes hard to reconcile. Here, we review the functional impact of senescent cells on different organismal contexts. We provide updated insights on the role of senescent cells in tissue repair and regeneration, in which they essentially modulate the levels of fibrosis and inflammation, discussing how “time” seems to be the key maestro of their effects. Finally, we overview the current clinical research landscape to target senescent cells and contemplate its repercussions on this fast-evolving field.https://elifesciences.org/articles/72449senescencetimetissue remodellingpathophysiologysenotherapies
spellingShingle Diogo Paramos-de-Carvalho
Antonio Jacinto
Leonor Saúde
The right time for senescence
eLife
senescence
time
tissue remodelling
pathophysiology
senotherapies
title The right time for senescence
title_full The right time for senescence
title_fullStr The right time for senescence
title_full_unstemmed The right time for senescence
title_short The right time for senescence
title_sort right time for senescence
topic senescence
time
tissue remodelling
pathophysiology
senotherapies
url https://elifesciences.org/articles/72449
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