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Updated: Sep 26, 2025

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Published on: June 28, 2019
Cellular Senescence: Molecular Targets, Biomarkers, and Senolytic Drugs
Natalie Kudlova1, Juan Bautista De Sanctis1,2, Marian Hajduch1,2
1Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, 77147 Olomouc, Czech Republic.
Abstract:
Cellular senescence is defined as irreversible cell cycle arrest caused by various processes that render viable cells non-functional, hampering normal tissue homeostasis. It has many endogenous and exogenous inducers, and is closely connected with age, age-related pathologies, DNA damage, degenerative disorders, tumor suppression and activation, wound healing, and tissue repair. However, the literature is replete with contradictory findings concerning its triggering mechanisms, specific biomarkers, and detection protocols. This may be partly due to the wide range of cellular and in vivo animal or human models of accelerated aging that have been used to study senescence and test senolytic drugs. This review summarizes recent findings concerning senescence, presents some widely used cellular and animal senescence models, and briefly describes the best-known senolytic agents.
Insights
Cellular senescence, a state of irreversible cell cycle arrest, impacts aging and disease. This review clarifies senescence mechanisms, models, and senolytic drugs, addressing research inconsistencies.
Area of Science:
- Gerontology
- Cell Biology
- Molecular Biology
Background:
- Cellular senescence is a state of stable cell cycle arrest with implications for aging and disease.
- Senescence is induced by various factors and linked to age-related pathologies, DNA damage, and tissue repair.
- Contradictory findings exist regarding senescence triggers, biomarkers, and detection methods.
Purpose of the Study:
- To summarize recent findings on cellular senescence.
- To present common cellular and animal models used in senescence research.
- To briefly describe established senolytic agents.
Main Methods:
- Literature review of recent senescence research.
- Compilation of widely used cellular and animal senescence models.
- Summary of key senolytic drugs and their mechanisms.
Main Results:
- Senescence is a complex process with diverse inducers and roles in tissue homeostasis.
- Varied experimental models contribute to inconsistencies in senescence research.
- Senolytic agents offer potential therapeutic strategies for senescence-related conditions.
Conclusions:
- Clarifying senescence mechanisms and utilizing standardized models are crucial for advancing research.
- Senolytics represent a promising therapeutic avenue for age-related diseases.
- Further research is needed to reconcile existing data and refine detection protocols.
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