Abstract
In order to develop topical preparations of taxifolin glycoside (TXG) for the treatment of atopic dermatitis (AD), formulations of Pep-1 peptide-conjugated elastic liposomes (Pep1-EL) were examined for their in vitro skin permeation profile and in vivo therapeutic efficacy. TXG-loaded Pep1-EL - a nanovesicle consisting of phosphatidylcholine, Tween 80, N-[4-(p-maleimidophenyl)butyryl]-phosphatidylethanolamine (MPB-PE), and Pep-1 peptide - is 130. nm in size, and has a zeta potential of 25. mV and a deformability index value of 60. Here, we examined the skin permeability of several topical preparations using a Franz diffusion cell mounted with depilated mouse skin and found that formulations of Pep1-EL exhibited superior absorption when compared to aqueous solution, EL or Pep-1 peptide-admixed EL formulations. Both transepidermal water loss and skin surface hydration were also measured using AD-induced NC/Nga mice, and the TXG-loaded Pep1-EL treatment group displayed a significantly expedited recovery in skin barrier function when compared to the controls treated with a TXG aqueous solution (p<0.05). AD-associated immune responses - including serum interleukine-4, immunoglobulin E, and interferon-gamma - were also regulated by topical application of TXG-loaded Pep1-EL. In conclusion, the novel Pep1-EL formulation of TXG shows substantial promise in the treatment of AD as a result of its desirable skin delivery-promoting capability.
Original language | English |
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Pages (from-to) | 198-204 |
Number of pages | 7 |
Journal | International Journal of Pharmaceutics |
Volume | 402 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2010 Dec 15 |
Keywords
- Atopic dermatitis
- Elastic liposomes
- NC/Nga mice
- Pep-1 peptide
- Taxifolin glycoside
ASJC Scopus subject areas
- Pharmaceutical Science