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: Seon Il Jang, Ji Ye Mok, In Hwa Jeon, Kwang-Hyun Park, Thuy Thi Thu Nguyen, Jun Seo Park, Hee Min Hwang, Mi-Sun Song, Duckhee Lee, Kyu Yun Chai
• Journal: Molecules (Basel, Switzerland) (Molecules) Vol. 17 Issue 3 Pg. 2992-3007 (Mar 09 2012) ISSN: 1420-3049 [Electronic] Switzerland
• PMID: 22406903 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• FLG protein, human
• Filaggrin Proteins
• Intermediate Filament Proteins
• Polyesters
• Polymers
• di-O-butyrylchitin
• Chitin
• Lactic Acid
• poly(lactide)
• Collagen

Topics

• Animals
• Bandages
• Cell Line
• Cell Movement
• Chitin (analogs & derivatives, pharmacology, therapeutic use)
• Collagen (biosynthesis)
• Dose-Response Relationship, Drug
• Extracellular Matrix (metabolism)
• Filaggrin Proteins
• Humans
• Intermediate Filament Proteins (metabolism)
• Keratinocytes (metabolism, physiology)
• Lactic Acid (pharmacology, therapeutic use)
• Male
• Mice
• Mice, Hairless
• Nanofibers (therapeutic use, ultrastructure)
• Polyesters
• Polymers (pharmacology, therapeutic use)
• Skin (drug effects, injuries, pathology)
• Tensile Strength
• Wound Healing