title: Increased cutaneous wound healing effect of biodegradable liposomes containing madecassoside: preparation optimization, in vitro dermal permeation, and in vivo bioevaluation.
abstract: Madecassoside (MA) is highly potent in treating skin disorders such as wounds and psoriasis. However, the topical wound healing effect of MA was hampered by its poor membrane permeability. In order to overcome this shortcoming, MA liposomes were designed and prepared by a double-emulsion method to enhance transdermal and wound healing effects. In this study, response surface methodology was adopted to yield the optimal preparation conditions of MA double-emulsion liposomes with average particle size of 151 nm and encapsulation efficiency of 70.14%. Moreover, MA double-emulsion liposomes demonstrated superior stability and homogeneous appearance in 5 months; their leakage rate was <12% even at 37°C and <5% at 4°C within 1 month. In vitro skin permeation, skin distribution, and burn wound healing of MA liposomal formulations were conducted for the first time to evaluate MA delivery efficiency and wound healing effect. The transdermal property and wound cure effect of MA double-emulsion liposomes were superior to those of MA film dispersion liposomes, and both the methods were endowed with an excellent performance by polyethylene glycol modification. In conclusion, double-emulsion liposome formulation was an applicable and promising pharmaceutical preparation for enhancing MA delivery toward wound healing effect and improving wound-healing progress.
authors.affiliation: School of Chemistry and Chemical Engineering, Guangdong Provincial Key Laboratory for Green Chemical Product Technology, South China University of Technology, Guangzhou.
authors.forename: Zehao
authors.initials: Z
authors.lastname: Li
authors.affiliation: School of Chemistry and Chemical Engineering, Guangdong Provincial Key Laboratory for Green Chemical Product Technology, South China University of Technology, Guangzhou.
authors.forename: Meifeng
authors.initials: M
authors.lastname: Liu
authors.affiliation: School of Chemistry and Chemical Engineering, Guangdong Provincial Key Laboratory for Green Chemical Product Technology, South China University of Technology, Guangzhou.
authors.forename: Huijuan
authors.initials: H
authors.lastname: Wang
authors.affiliation: Guangdong Jiabao Pharmaceutical Co., Ltd., Qingyuan, People's Republic of China.
authors.forename: Song
authors.initials: S
authors.lastname: Du
mesh_terms: D000279:Administration, Cutaneous; D000818:Animals; D001672:Biocompatible Materials / Q000737:chemistry*; D002626:Chemistry, Pharmaceutical; D020405:Dermis / Q000187:drug effects*; D004655:Emulsions; D005260:Female; D008081:Liposomes; D008297:Male; D010316:Particle Size; D010539:Permeability / Q000187:drug effects; D017207:Rats, Sprague-Dawley; D012044:Regression Analysis; D012869:Skin Absorption / Q000187:drug effects*; D055672:Static Electricity; D014315:Triterpenes / Q000737:chemistry / Q000494:pharmacology*; D014945:Wound Healing / Q000187:drug effects*
chemical_list: D001672:Biocompatible Materials; D004655:Emulsions; D008081:Liposomes; D014315:Triterpenes; C093443:madecassoside
keywords: double-emulsion method; madecassoside liposomes; skin permeation; transdermal property; wound-healing effect