title: Effect of electrospun non-woven mats of dibutyryl chitin/poly(lactic acid) blends on wound healing in hairless mice.
abstract: The aim of this study was to examine the proliferative ability of dibutyryl chitin (DBC) on scratch wounds in HaCaT keratinocytes and to evaluate the effect of nanoporous non-woven mat (DBCNFM) on skin wound healing in hairless mice using the advantages of DBCNFM, such as high porosity and high surface area to volume. The cell spreading activity of DBC was verified through a cell spreading assay in scratched human HaCaT keratinocytes. Scratch wound experiments showed that DBC notably accelerates the spreading rate of HaCaT keratinocytes in a dose dependent manner. The molecular aspects of the healing process were also investigated by hematoxylin & eosin staining of the healed skin, displaying the degrees of reepithelialization and immunostaining on extracellular matrix synthesis and remodeling of the skin. Topical application of DBCNFM significantly reduced skin wound rank scores and increased the skin remodeling of the wounded hairless mice in a dose dependent way. Furthermore, DBCNFM notably increased the expression of the type 1 collagen and filaggrin. These results demonstrate that DBC efficiently accelerates the proliferation of HaCaT keratinocytes and DBCNFM notably increases extracellular matrix synthesis on remodeling of the skin, and these materials are a good candidate for further evaluation as an effective wound healing agent.
authors.affiliation: School of Alternative Medicine and Health Science, College of Alternative Medicine, Jeonju University, Jeonju 560-759, Korea.
authors.forename: Seon Il
authors.initials: SI
authors.lastname: Jang
authors.forename: Ji Ye
authors.initials: JY
authors.lastname: Mok
authors.forename: In Hwa
authors.initials: IH
authors.lastname: Jeon
authors.forename: Kwang-Hyun
authors.initials: KH
authors.lastname: Park
authors.forename: Thuy Thi Thu
authors.initials: TT
authors.lastname: Nguyen
authors.forename: Jun Seo
authors.initials: JS
authors.lastname: Park
authors.forename: Hee Min
authors.initials: HM
authors.lastname: Hwang
authors.forename: Mi-Sun
authors.initials: MS
authors.lastname: Song
authors.forename: Duckhee
authors.initials: D
authors.lastname: Lee
authors.forename: Kyu Yun
authors.initials: KY
authors.lastname: Chai
mesh_terms: D000818:Animals; D001458:Bandages; D002460:Cell Line; D002465:Cell Movement; D002686:Chitin / Q000031:analogs & derivatives* / Q000494:pharmacology / Q000627:therapeutic use; D003094:Collagen / Q000096:biosynthesis; D004305:Dose-Response Relationship, Drug; D005109:Extracellular Matrix / Q000378:metabolism; D000091344:Filaggrin Proteins; D006801:Humans; D007381:Intermediate Filament Proteins / Q000378:metabolism; D015603:Keratinocytes / Q000378:metabolism / Q000502:physiology; D019344:Lactic Acid / Q000494:pharmacology* / Q000627:therapeutic use; D008297:Male; D051379:Mice; D008812:Mice, Hairless; D057139:Nanofibers / Q000627:therapeutic use / Q000648:ultrastructure; D011091:Polyesters; D011108:Polymers / Q000494:pharmacology* / Q000627:therapeutic use; D012867:Skin / Q000187:drug effects / Q000293:injuries / Q000473:pathology; D013718:Tensile Strength; D014945:Wound Healing
chemical_list: C000717249:FLG protein, human; D000091344:Filaggrin Proteins; D007381:Intermediate Filament Proteins; D011091:Polyesters; D011108:Polymers; C528051:di-O-butyrylchitin; D002686:Chitin; D019344:Lactic Acid; C033616:poly(lactide); D003094:Collagen