Mechanism linking ultraviolet exposure, oncogenic mutations, and seborrheic keratosis development

Determine the mechanism by which oncogenic mutations contribute to the development of seborrheic keratoses in human skin, particularly in the context of chronic ultraviolet (UV) exposure and aging-related changes, to clarify the causal pathway from UV exposure to seborrheic keratosis formation.

Background

Seborrheic keratoses (SKs) are common benign epidermal tumors whose prevalence increases with age. The paper discusses chronic ultraviolet (UV) exposure as a key factor in skin aging and references studies suggesting associations between cumulative sun exposure and SK occurrence.

While the authors found significant differences in roughness parameters of SKs related to sun exposure, they explicitly note that the biological mechanism connecting UV exposure, potential oncogenic mutations, and SK development remains unresolved, highlighting a gap between epidemiological correlations and mechanistic understanding.