Journal
EUROPEAN JOURNAL OF PHARMACEUTICS AND BIOPHARMACEUTICS
Volume 163, Issue -, Pages 223-239Publisher
ELSEVIER
DOI: 10.1016/j.ejpb.2021.04.007
Keywords
Combination therapy; Skin cancer; Crystalline index; Dual emulsification; Lipid-nanosystem; Dermatokinetic; Efficacy study
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Funding
- Indian Council of Medical Research (ICMR), Government of India New Delhi, India [3/2/2/45/2018/Online Onco Fship/NCD-III]
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A combinatorial nanostructured lipid carrier gel of 5-fluorouracil and resveratrol was formulated, optimized, and characterized in this study, showing potential for enhanced permeation and synergistic effects against skin cancer. Stability studies and in vitro release studies demonstrated improved drug release and penetration capabilities of the optimized lipid-nanosystem.
In the present study, combinatorial nanostructured lipid carrier gel of 5-fluorouracil and resveratrol was formulated, optimized and characterized to enhance permeation in between epidermis and dermis layers of the skin to obtain a synergistic effect against skin cancer. After extensive trials, a newly modified emulsiosonication method was developed and additionally, for the first time, stability studies were done in the beginning to optimize formulation technique, which exhibited two major benefits simultaneously; first, it provided bestoptimized technique for preparation of combinatorial lipid-nanosystem, and secondly, it also demonstrated a detailed report card of durability of formulations. In vitro release study showed a significantly improved, slow and prolonged release of drugs from the optimized lipid-nanosystem (***p < 0.05), which followed non-Fickian Higuchi kinetics. Besides, mechanism of skin permeation enhancement study, dermatokinetic assessment, and depth analysis of optimized formulation on skin exhibited improved permeation and well distribution of drugs up to the dermis layer of skin. Moreover, combinatorial linogel possessed significantly greater efficacy (**p < 0.01) on the A431 cell line, as compared to the conventional formulation. Thus, findings revealed that modified method of preparation for dual drug-loaded lipid-nanosystem lead to the production of a stable formulation that also improved the retention of both 5-fluorouracil and resveratrol in between the epidermis and dermis region of skin thereby helping in the management and treatment of skin cancer.
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