In vitro study of ethosome penetration in human skin and hypertrophic scar tissue.

Abstract

The purpose of this study is to characterize a novel transdermal delivery carrier, ethosomes containing 5-fluorouracil. The delivery of drugs from ethosomes in human hypertrophic scar (HS) and the mechanisms of action of ethosomes in human HS were investigated. Percutaneous ethosome permeation was evaluated in vitro in human HS and skin using a Franz's cell. The amount of 5-fluorouracil that permeated HS and skin after 24 hours was most abundant in ethosomes via HS (E-Scar), followed by hydroethanolic solution via HS (H-Scar), ethosomes via skin (E-Skin), and hydroethanolic solution via skin (H-Skin). The penetration of ethosomes in HS and skin was analyzed by ethosomes fluorescently labeled with rhodamine 6GO using confocal laser scanning microscopy. The fluorescence intensity after application for 24 hours was highest in E-Scar, followed by E-Skin, H-Scar, and H-Skin, which indicates the penetration of ethosomes in HS was greatest. In conclusion, we consider that ethosomes are a highly efficient carrier in HS.

• Authors: Zhen Zhang, Yan Wo, Yixin Zhang, Danru Wang, Rong He, Huijin Chen, Daxiang Cui
• Journal: Nanomedicine : nanotechnology, biology, and medicine (Nanomedicine) Vol. 8 Issue 6 Pg. 1026-33 (Aug 2012) ISSN: 1549-9642 [Electronic] United States
• PMID: 22033085 (Publication Type: Clinical Trial, Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2012 Elsevier Inc. All rights reserved.

Chemical References

• Immunosuppressive Agents
• Nanocapsules
• Fluorouracil

Topics

• Administration, Cutaneous
• Adult
• Cicatrix, Hypertrophic (metabolism)
• Female
• Fluorouracil (administration & dosage, pharmacology)
• Humans
• Immunosuppressive Agents (administration & dosage, pharmacokinetics)
• Nanocapsules (administration & dosage, chemistry)
• Skin Absorption
• Tissue Distribution
• Transport Vesicles
• Young Adult