Cellular senescence or stemness: hypoxia flips the coin

Abstract Cellular senescence is a complex physiological state whose main feature is proliferative arrest. Cellular senescence can be considered the reverse of cell immortalization and continuous tumor growth. However, cellular senescence has many physiological functions beyond being a putative tumor...

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Main Authors: Daniel Otero-Albiol, Amancio Carnero
Format: Article
Language:English
Published: BMC 2021-07-01
Series:Journal of Experimental & Clinical Cancer Research
Subjects:
Online Access:https://doi.org/10.1186/s13046-021-02035-0
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author Daniel Otero-Albiol
Amancio Carnero
author_facet Daniel Otero-Albiol
Amancio Carnero
author_sort Daniel Otero-Albiol
collection DOAJ
description Abstract Cellular senescence is a complex physiological state whose main feature is proliferative arrest. Cellular senescence can be considered the reverse of cell immortalization and continuous tumor growth. However, cellular senescence has many physiological functions beyond being a putative tumor suppressive trait. It remains unknown whether low levels of oxygen or hypoxia, which is a feature of every tissue in the organism, modulate cellular senescence, altering its capacity to suppress the limitation of proliferation. It has been observed that the lifespan of mammalian primary cells is increased under low oxygen conditions. Additionally, hypoxia promotes self-renewal and pluripotency maintenance in adult and embryonic stem cells (ESCs), induced pluripotent stem cells (iPSCs) and cancer stem cells (CSCs). In this study, we discuss the role of hypoxia facilitating senescence bypass during malignant transformation and acquisition of stemness properties, which all contribute to tumor development and cancer disease aggressiveness.
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spelling doaj.art-082c485ca22e4ed7b2300298528e8aac2022-12-21T22:08:37ZengBMCJournal of Experimental & Clinical Cancer Research1756-99662021-07-0140112010.1186/s13046-021-02035-0Cellular senescence or stemness: hypoxia flips the coinDaniel Otero-Albiol0Amancio Carnero1Instituto de Biomedicina de Sevilla, IBIS, Hospital Universitario Virgen del Rocío, Universidad de Sevilla, Consejo Superior de Investigaciones CientíficasInstituto de Biomedicina de Sevilla, IBIS, Hospital Universitario Virgen del Rocío, Universidad de Sevilla, Consejo Superior de Investigaciones CientíficasAbstract Cellular senescence is a complex physiological state whose main feature is proliferative arrest. Cellular senescence can be considered the reverse of cell immortalization and continuous tumor growth. However, cellular senescence has many physiological functions beyond being a putative tumor suppressive trait. It remains unknown whether low levels of oxygen or hypoxia, which is a feature of every tissue in the organism, modulate cellular senescence, altering its capacity to suppress the limitation of proliferation. It has been observed that the lifespan of mammalian primary cells is increased under low oxygen conditions. Additionally, hypoxia promotes self-renewal and pluripotency maintenance in adult and embryonic stem cells (ESCs), induced pluripotent stem cells (iPSCs) and cancer stem cells (CSCs). In this study, we discuss the role of hypoxia facilitating senescence bypass during malignant transformation and acquisition of stemness properties, which all contribute to tumor development and cancer disease aggressiveness.https://doi.org/10.1186/s13046-021-02035-0hypoxiaoxygencellular senescenceimmortalizationcancerstemness
spellingShingle Daniel Otero-Albiol
Amancio Carnero
Cellular senescence or stemness: hypoxia flips the coin
Journal of Experimental & Clinical Cancer Research
hypoxia
oxygen
cellular senescence
immortalization
cancer
stemness
title Cellular senescence or stemness: hypoxia flips the coin
title_full Cellular senescence or stemness: hypoxia flips the coin
title_fullStr Cellular senescence or stemness: hypoxia flips the coin
title_full_unstemmed Cellular senescence or stemness: hypoxia flips the coin
title_short Cellular senescence or stemness: hypoxia flips the coin
title_sort cellular senescence or stemness hypoxia flips the coin
topic hypoxia
oxygen
cellular senescence
immortalization
cancer
stemness
url https://doi.org/10.1186/s13046-021-02035-0
work_keys_str_mv AT danieloteroalbiol cellularsenescenceorstemnesshypoxiaflipsthecoin
AT amanciocarnero cellularsenescenceorstemnesshypoxiaflipsthecoin