Adipocytes Emerge as Central Drivers of Skin Aging in New Review

A recent review in Biogerontology reframes skin aging by positioning adipocytes—particularly dermal white adipose tissue (dWAT)—as central regulators of age-related cutaneous change. Traditionally, skin aging has been attributed to epidermal and dermal alterations, including keratinocyte senescence, extracellular matrix (ECM) degradation, and fibroblast dysfunction. In contrast, skin-associated adipose tissue has largely been regarded as a structural filler.

The authors synthesize emerging evidence suggesting that adipocyte aging may precede and influence dermal deterioration. Age-associated adipocyte dysfunction is characterized by senescence-associated secretory phenotype (SASP) signaling, metabolic reprogramming, and altered adipokine secretion. These changes may promote ECM breakdown, impair fibroblast activity, and sustain chronic low-grade inflammation within the dermal microenvironment. The review also highlights regional heterogeneity in dWAT across anatomical sites, proposing that site-specific adipose characteristics contribute to the spatial variability observed in skin aging patterns.

Mechanistically, the authors describe an adipocyte–immune–fibroblast tri-cellular network in which senescent adipocytes interact with immune cells and fibroblasts to amplify tissue-level aging phenotypes. Current anti-aging strategies, which largely target epidermal turnover, dermal remodeling, or volumization, may not address upstream adipocyte dysfunction.

The authors propose a conceptual framework in which adipocyte aging represents an initiating event in cutaneous aging and discuss investigational approaches—including senolytics, senomorphics, and adipocyte functional reprogramming—as potential regenerative strategies.

“Here, we propose a conceptual framework in which adipocyte aging functions as an initiating event in skin aging,” the authors wrote. “This adipocyte-centered perspective reframes the pathophysiology of skin aging and highlights novel therapeutic opportunities for regenerative dermatology.”