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Novel application of human periodontal ligament stem cells and water-soluble chitin for collagen tissue regeneration: in vitro and in vivo investigations

Authors
 Im Hee Jung  ;  Jung Chul Park  ;  Jane C. Kim  ;  Dong Won Jeon  ;  Seong Ho Choi  ;  Kyoo Sung Cho  ;  Gun Il Im  ;  Byung Soo Kim  ;  Chang Sung Kim 
Citation
 Tissue Engineering Part A, Vol.18(5-6) : 643-653, 2012 
Journal Title
 Tissue Engineering Part A 
ISSN
 1937-3341 
Issue Date
2012
Abstract
Human periodontal ligament stem cells (hPDLSCs) have been proposed as an alternative to conventional cosmetic fillers because they display an innate ability to synthesize collagen. The aims of this study were to determine the effects of water-soluble chitin (WSC) on the proliferation and migration of hPDLSCs, and to quantify collagen synthesis in vitro and in vivo compared with human adipose-derived stem cell (hADSC)s. hPDLSCs were isolated from healthy extracted teeth, and the cell proliferation and cell migration capacities of untreated hPDLSCs (control group) and WSC-treated hPDLSCs (test group) were compared. Insoluble/soluble collagen synthesis were also assessed, and collagen related markers were evaluated including lysyl oxidase (LOX), lysyl oxidase like (LOXL)1, LOXL2, and hydroxyproline. In vivo collagen formation was examined by transplanting hyaluronic acid as a cell carrier into the subcutaneous pockets of immunocompromised mice in the control and test groups; histology and immunohistochemistry analyses were performed 4 (n=4) and 8 (n=4) weeks later. There was a dose-dependent enhancement of hPDLSCs proliferation in the test group, and a concomitant reduction in cell migration. The amount of insoluble collagen formed was greater in the test group than in the control group (p<0.05), whereas soluble collagen formation was significantly reduced in the test group (p<0.05). The histology and immunohistochemistry results revealed that the amount of collagen formed in vivo was greater in WSC-treated hPDLSCs than in the control cells at 4 and 8 weeks (p<0.05), and histometric analysis at 8 weeks revealed that enhancement of collagen formation by hPDLSCs was greater than by hADSCs. These results indicate that WSC modulates the properties of hPDLSCs, rendering them more suitable for cosmetic soft-tissue augmentation.
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/91935
Full Text
http://online.liebertpub.com/doi/full/10.1089/ten.tea.2011.0164
DOI
10.1089/ten.tea.2011.0164
Appears in Collections:
1. Journal Papers (연구논문) > 2. College of Dentistry (치과대학) > Dept. of Periodontics (치주과학교실)
Yonsei Authors
김창성(Kim, Chang Sung)
박정철(Park, Jung Chul)
정임희(Jung, Im Hee)
조규성(Cho, Kyoo Sung)
최성호(Choi, Seong Ho)
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