Cellular senescence mitigation is the clinical and biological strategy focused on preventing, reducing, or clearing senescent cells—those cells that have ceased dividing but remain metabolically active and secrete pro-inflammatory molecules, collectively known as the Senescence-Associated Secretory Phenotype (SASP). This intervention aims to lessen the detrimental impact of these dysfunctional cells on tissue microenvironments, which is a major contributor to age-related decline and chronic disease. Effective mitigation is considered a core strategy in the pursuit of enhanced longevity and systemic healthspan.
Origin
The concept stems from the discovery of cellular senescence, a state of irreversible growth arrest, first described in the early 1960s, which later evolved into a recognized hallmark of aging. “Mitigation,” meaning the action of reducing the severity or seriousness of something, was later combined with the term as research began to identify therapeutic targets for intervening in the aging process. The term is fundamentally rooted in molecular biology and gerontology.
Mechanism
The mechanism involves targeting senescent cells for elimination using senolytic agents or modulating the SASP using senomorphic compounds, thereby reducing chronic, sterile inflammation in surrounding tissues. Senescent cells accumulate due to telomere shortening or persistent damage, and their presence disrupts tissue homeostasis. By clearing these cells, the body can restore a more youthful tissue environment, potentially improving organ function and hormonal signaling pathways.
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