Efficacy of an Innovative Poly-Component Formulation in Counteracting Human Dermal Fibroblast Aging by Influencing...

Area of Science:

• Dermatology and Cellular Biology
• Biochemistry of Aging
• Cosmetic Science

Background:

• Skin aging is linked to reactive oxygen species (ROS) accumulation.
• Oxidative stress triggers cellular senescence and inflammatory processes.
• Understanding mechanisms of anti-aging formulations is crucial.

Purpose of the Study:

• To investigate the mechanisms of a poly-component formulation (K) on aged human dermal fibroblasts (HDFs).
• To evaluate K's direct free radical-scavenging action and modulation of antioxidant systems.
• To assess K's impact on inflammatory pathways and aging markers.

Main Methods:

• Assessed free radical scavenging capacity and antioxidant enzyme activities (SOD, CAT).
• Analyzed Nuclear factor E2-related factor 2 (Nrf2) and Nuclear factor kappa-B (NF-κB) levels via Western blot.
• Measured pro-inflammatory cytokines, matrix metalloproteinases (MMPs), and advanced glycation end-products (AGEs).

Main Results:

• K formulation demonstrated dose-dependent counteraction of stress-induced aging.
• Increased antioxidant enzyme activities (SOD, CAT) and phospho-Nrf2 (p-Nrf2) expression.
• Reduced pro-inflammatory cytokines, MMPs, and AGEs, linked to decreased phospho-NF-κB (p-NF-κB) levels.

Conclusions:

• K formulation exerts direct scavenging effects and enhances endogenous antioxidant systems.
• It modulates inflammatory pathways by downregulating p-NF-κB and upregulating Nrf2 activation.
• The formulation shows reparative and regenerative potential for treating skin aging.