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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

Title
Novel application of human periodontal ligament stem cells and water-soluble chitin for collagen tissue regeneration: In vitro and in vivo investigations
Authors
Jung I.H.Park J.C.Kim J.C.Jeon D.W.Choi S.H.Cho K.S.Im G.I.Kim B.S.Kim C.S.
Ewha Authors
전동원
Issue Date
2012
Journal Title
Tissue Engineering - Part A
ISSN
1937-3341JCR Link
Citation
vol. 18, no. 41400, pp. 643 - 653
Indexed
SCI; SCIE; SCOPUS WOS scopus
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. © 2012. Mary Ann Liebert, Inc.
DOI
10.1089/ten.tea.2011.0164
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조형예술대학 > 의류학전공 > Journal papers
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