Biocompatible Ionic Liquid Enhances Transdermal Antigen Peptide Delivery and Preventive Vaccination Effect

Yoshiro Tahara, Kaho Morita, Rie Wakabayashi, Noriho Kamiya, Masahiro Goto

研究成果: Contribution to journalArticle査読

抄録

Ionic liquids (ILs) attract significant attention as novel solvents for drug delivery systems because of their ability to solubilize poorly soluble drugs and tune the physiological properties of active pharmaceutical ingredients. For the next generation of IL-based drug delivery systems, biocompatibility is a high priority. In the current study, choline-fatty acids ([Cho][FA]) were used as a biocompatible IL to mediate the dissolution of a water-soluble antigen peptide in an oil-based skin penetration enhancer. Among the candidate fatty acids (C8, C10, C12, C14, C16, C18:0, and C18:1), C18:1 was selected because of its low cytotoxicity and mediation of skin permeability for an antigen peptide. Using IL[Cho][C18:1] and an oil-based penetration enhancer, the flux of transdermal delivery of the peptide increased 28-fold compared with delivery using an aqueous vehicle. Furthermore, the IL-mediated transcutaneous vaccination succeeded in suppressing tumor growth in vivo compared to injection. The skin irritation produced by this formulation was tested using an in vitro 3D constructed skin tissue model and an in vivo histological study, which concluded that the formulation did not cause skin irritation. The results suggest that biocompatible IL-mediated dissolution in an oil-based skin penetration enhancer is a promising strategy for transdermal drug delivery.

本文言語英語
ジャーナルMolecular pharmaceutics
DOI
出版ステータス印刷前のE-pub - 9 21 2020

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