Functional Features of Senescent Cells and Implications for Therapy

Area of Science:

• Gerontology and Cellular Biology
• Molecular Biology and Aging Research

Background:

• Cellular senescence is a fundamental aging mechanism impacting tissue and organ function.
• Senescent cells contribute significantly to organismal aging and age-related decline.
• Dysfunctional senescent cells exhibit genomic instability, cell cycle arrest, and metabolic impairments.

Purpose of the Study:

• To characterize the features of senescent cells.
• To review current geroprotective therapies targeting senescence.
• To identify challenges and future directions in anti-aging treatment strategies.

Main Methods:

• Literature search of PubMed and Scopus databases up to March 2025.
• Analysis of articles focusing on senescent cells, aging, senolytic therapy, SASP, and mitochondrial dysfunction.
• Synthesis of information on cellular senescence characteristics and therapeutic interventions.

Main Results:

• Senescent cells possess distinct functional and structural characteristics, including genomic alterations and altered cellular processes.
• Key targets for intervention include cell cycle arrest, lysosomal and mitochondrial dysfunction, and the production of senescence-associated secretory phenotype (SASP) factors.
• Senolytic therapy and targeting SASP are emerging strategies for combating aging.

Conclusions:

• Understanding senescent cell biology is crucial for developing effective anti-aging interventions.
• Targeting specific features of senescent cells holds therapeutic potential for enhancing healthy longevity.
• Further research into novel anti-aging strategies is warranted to address the complexities of senescence.