Transfersome Encapsulated with the R-carvedilol Enantiomer for Skin Cancer Chemoprevention

Area of Science:

• Dermatology
• Nanotechnology
• Pharmacology

Background:

• The R-carvedilol enantiomer of carvedilol lacks beta-adrenergic activity but possesses skin cancer preventive properties.
• Effective topical delivery is crucial for R-carvedilol's skin protective effects.

Purpose of the Study:

• To develop and characterize R-carvedilol-loaded transfersomes for enhanced skin delivery.
• To evaluate the in vitro and in vivo efficacy of these transfersomes in preventing UV-induced skin damage and cancer.

Main Methods:

• R-carvedilol transfersomes were formulated and characterized for physical properties and stability.
• In vitro drug release, ex vivo skin penetration, and retention studies were conducted.
• Skin irritation, toxicity, and efficacy against UV radiation in mice were assessed.

Main Results:

• Transfersomes significantly improved R-carvedilol skin permeation and retention compared to the free drug.
• The optimal formulation (T-RCAR-3) showed no in vitro or in vivo skin irritation.
• Topical T-RCAR-3 effectively reduced UV-induced skin inflammation and carcinogenesis in mice.

Conclusions:

• R-carvedilol transfersomes offer a feasible approach for topical delivery.
• This formulation demonstrates potential for preventing UV-induced skin inflammation and cancer.