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Effect of Electrospun Non-Woven Mats of Dibutyryl Chitin/Poly(Lactic Acid) Blends on Wound Healing in Hairless Mice
School of Alternative Medicine and Health Science, College of Alternative Medicine, Jeonju University, Jeonju 560-759, Korea
Department of Biochemistry, Chonbuk National University Medical School, Jeonju 561-756, Korea
Center of Chemical Technology, Division of Chemical Engineering, Hankyong National University, 167 Chungang-ro, Anseong-si, Gyeonggi-do 456-749, Korea
Division of Bio Nano Chemistry, College of Natural Sciences, Wonkwang University, Iksan 570-749, Korea
* Author to whom correspondence should be addressed.
Received: 8 February 2012; in revised form: 4 March 2012 / Accepted: 6 March 2012 / Published: 9 March 2012
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.
Keywords: dibutyryl chitin; nanofiber membrane; electrospinning; hairless mice; wound healing
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Jang, S.I.; Mok, J.Y.; Jeon, I.H.; Park, K.-H.; Nguyen, T.T.T.; Park, J.S.; Hwang, H.M.; Song, M.-S.; Lee, D.; Chai, K.Y. Effect of Electrospun Non-Woven Mats of Dibutyryl Chitin/Poly(Lactic Acid) Blends on Wound Healing in Hairless Mice. Molecules 2012, 17, 2992-3007.
Jang SI, Mok JY, Jeon IH, Park K-H, Nguyen TTT, Park JS, Hwang HM, Song M-S, Lee D, Chai KY. Effect of Electrospun Non-Woven Mats of Dibutyryl Chitin/Poly(Lactic Acid) Blends on Wound Healing in Hairless Mice. Molecules. 2012; 17(3):2992-3007.
Jang, Seon Il; Mok, Ji Ye; Jeon, In Hwa; Park, Kwang-Hyun; Nguyen, Thuy Thi Thu; Park, Jun Seo; Hwang, Hee Min; Song, Mi-Sun; Lee, Duckhee; Chai, Kyu Yun. 2012. "Effect of Electrospun Non-Woven Mats of Dibutyryl Chitin/Poly(Lactic Acid) Blends on Wound Healing in Hairless Mice." Molecules 17, no. 3: 2992-3007.