Article ; Online: Cellular Senescence: From Mechanisms to Current Biomarkers and Senotherapies.
2023 Volume 75, Issue 4, Page(s) 675–713
Abstract: An increase in life expectancy in developed countries has led to a surge of chronic aging-related diseases. In the last few decades, several studies have provided evidence of the prominent role of cellular senescence in many of these pathologies. Key ... ...
Abstract | An increase in life expectancy in developed countries has led to a surge of chronic aging-related diseases. In the last few decades, several studies have provided evidence of the prominent role of cellular senescence in many of these pathologies. Key traits of senescent cells include cell cycle arrest, apoptosis resistance, and secretome shift to senescence-associated secretory phenotype resulting in increased secretion of various intermediate bioactive factors important for senescence pathophysiology. However, cellular senescence is a highly phenotypically heterogeneous process, hindering the discovery of totally specific and accurate biomarkers. Also, strategies to prevent the pathologic effect of senescent cell accumulation during aging by impairing senescence onset or promoting senescent cell clearance have shown great potential during in vivo studies, and some are already in early stages of clinical translation. The adaptability of these senotherapeutic approaches to human application has been questioned due to the lack of proper senescence targeting and senescence involvement in important physiologic functions. In this review, we explore the heterogeneous phenotype of senescent cells and its influence on the expression of biomarkers currently used for senescence detection. We also discuss the current evidence regarding the efficacy, reliability, development stage, and potential for human applicability of the main existing senotherapeutic strategies. SIGNIFICANCE STATEMENT: This paper is an extensive review of what is currently known about the complex process of cellular senescence and explores its most defining features. The main body of the discussion focuses on how the multifeature fluctuation of the senescence phenotype and the physiological role of cellular senescence have both caused a limitation in the search for truly reliable senescence biomarkers and the progression in the development of senotherapies. |
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MeSH term(s) | Humans ; Reproducibility of Results ; Senotherapeutics ; Cellular Senescence/physiology ; Aging/metabolism ; Biomarkers ; Chronic Disease |
Chemical Substances | Senotherapeutics ; Biomarkers |
Language | English |
Publishing date | 2023-02-02 |
Publishing country | United States |
Document type | Journal Article ; Review |
ZDB-ID | 209898-2 |
ISSN | 1521-0081 ; 0031-6997 |
ISSN (online) | 1521-0081 |
ISSN | 0031-6997 |
DOI | 10.1124/pharmrev.122.000622 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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