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Osteogenic potential of rat stromal cells derived from periodontal ligament
Author(s) -
Kato Tomotaka,
Hattori Koji,
Deguchi Tomonori,
Katsube Yoshihiro,
Matsumoto Tomohiro,
Ohgushi Hajime,
Numabe Yukihiro
Publication year - 2011
Publication title -
journal of tissue engineering and regenerative medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.835
H-Index - 72
eISSN - 1932-7005
pISSN - 1932-6254
DOI - 10.1002/term.379
Subject(s) - mesenchymal stem cell , stromal cell , cd90 , osteocalcin , dental alveolus , periodontal fiber , periodontal ligament stem cells , regeneration (biology) , bone marrow , chemistry , adipose tissue , pathology , microbiology and biotechnology , alkaline phosphatase , biology , cd34 , medicine , stem cell , dentistry , enzyme , biochemistry
Various mesenchymal stromal cells (MSCs) have been applied to regenerative medicine. MSCs derived from periodontal tissue could also be a useful cell source for alveolar bone regeneration. However, only a few attempts of direct comparisons have been made between MSCs from periodontal tissues and those from other somatic tissues. The purpose of this study was to clarify the osteogenic characteristics of mesenchymal stromal cells derived from bone marrow (BMSCs), adipose tissue (ASCs) and periodontal ligament (PDLSCs). BMSCs, ASCs and PDLSCs were isolated from Fisher 344 rats. After 1 week of primary culture, stromal cells were subjected to cell surface analysis and osteogenic differentiation. The cells were subcultured for 2 weeks with and without osteogenic supplements (OS), followed by biochemical and histological analyses. With regard to cell surface antigens, all MSCs were positive for CD29 and CD90 and negative for CD45. With regard to osteogenic differentiation, BMSCs with OS had the highest ALP activity, calcium uptake and osteocalcin content. Without OS, PDLSCs had the highest levels of these bone differentiation markers. RT–PCR analysis and histological analysis showed similar trends. These results indicate that PDLSCs are an ideal candidate for alveolar bone regeneration. Copyright © 2011 John Wiley & Sons, Ltd.