Transdermal Delivery of siRNA through Microneedle Array
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AbstractSuccessful development of siRNA therapies has significant potential for the treatment of skin conditions (alopecia, allergic skin diseases, hyperpigmentation, psoriasis, skin cancer, pachyonychia congenital) caused by aberrant gene expression. Although hypodermic needles can be used to effectively deliver siRNA through the stratum corneum, the major challenge is that this approach is painful and the effects are restricted to the injection site. Microneedle arrays may represent a better way to deliver siRNAs across the stratum corneum. In this study, we evaluated for the first time the ability of the solid silicon microneedle array for punching holes to deliver cholesterol-modified housekeeping gene (Gapdh) siRNA to the mouse ear skin. Treating the ear with microneedles showed permeation of siRNA in the skin and could reduce Gapdh gene expression up to 66% in the skin without accumulation in the major organs. The results showed that microneedle arrays could effectively deliver siRNA to relevant regions of the skin noninvasively.
All Author(s) ListDeng Y, Chen J, Zhao Y, Yan XH, Zhang L, Choy KW, Hu J, Sant HJ, Gale BK, Tang T
Journal nameScientific Reports
Year2016
Month2
Day18
Volume Number6
PublisherNATURE PUBLISHING GROUP
ISSN2045-2322
eISSN2045-2322
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesMultidisciplinary Sciences; Science & Technology - Other Topics

Last updated on 2020-24-11 at 23:26