TY - JOUR
T1 - Isolation and characterization of human periodontal ligament (PDL) stem cells (PDLSCs) from the inflamed PDL tissue
T2 - In vitro and in vivo evaluations
AU - Park, Jung Chul
AU - Kim, Jeong Min
AU - Jung, Im Hee
AU - Kim, Jane C.
AU - Choi, Seong Ho
AU - Cho, Kyoo Sung
AU - Kim, Chang Sung
PY - 2011/8
Y1 - 2011/8
N2 - Objectives: Mesenchymal stem cells (MSC) could be isolated from healthy periodontal ligaments (PDL). The aims of this study were to isolate and characterize human PDL stem cells (hPDLSCs) from inflamed PDL tissue, and to evaluate their regenerative potential. Materials and Methods: Inflamed hPDLSCs (ihPDLSCs) were isolated from the inflamed PDL tissue obtained from intra-bony defects during flap surgery, and characterized by immunohistochemical staining, colony-forming unit assay, fluorescence-activated cell sorting, and mRNA expression in comparison with healthy hPDLSCs obtained from extracted teeth for orthodontic purpose. The proliferative potential and migratory potential was evaluated, and compared with healthy hPDLSCs. Regenerative potential was assessed by an in vivo ectopic transplantation model. Results: ihPDLSCs were successfully isolated and characterized as MSCs. Both ihPDLSCs and hPDLSCs were successfully differentiated under osteogenic/cementogenic and adipogenic microenvironment. The proliferative potential did not differ between healthy hPDLSCs and ihPDLSCs, while the migratory capacity was significantly increased in ihPDLSCs (p<0.05). Both groups exhibited new cementum-like tissue and related PDL fibre regeneration in an in vivo transplantation model. Conclusion: ihPDLSCs could be successfully isolated from inflamed PDL tissue, and they retained the regenerative potential for cementum and related PDL tissues.
AB - Objectives: Mesenchymal stem cells (MSC) could be isolated from healthy periodontal ligaments (PDL). The aims of this study were to isolate and characterize human PDL stem cells (hPDLSCs) from inflamed PDL tissue, and to evaluate their regenerative potential. Materials and Methods: Inflamed hPDLSCs (ihPDLSCs) were isolated from the inflamed PDL tissue obtained from intra-bony defects during flap surgery, and characterized by immunohistochemical staining, colony-forming unit assay, fluorescence-activated cell sorting, and mRNA expression in comparison with healthy hPDLSCs obtained from extracted teeth for orthodontic purpose. The proliferative potential and migratory potential was evaluated, and compared with healthy hPDLSCs. Regenerative potential was assessed by an in vivo ectopic transplantation model. Results: ihPDLSCs were successfully isolated and characterized as MSCs. Both ihPDLSCs and hPDLSCs were successfully differentiated under osteogenic/cementogenic and adipogenic microenvironment. The proliferative potential did not differ between healthy hPDLSCs and ihPDLSCs, while the migratory capacity was significantly increased in ihPDLSCs (p<0.05). Both groups exhibited new cementum-like tissue and related PDL fibre regeneration in an in vivo transplantation model. Conclusion: ihPDLSCs could be successfully isolated from inflamed PDL tissue, and they retained the regenerative potential for cementum and related PDL tissues.
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U2 - 10.1111/j.1600-051X.2011.01716.x
DO - 10.1111/j.1600-051X.2011.01716.x
M3 - Article
C2 - 21449989
AN - SCOPUS:79960341743
SN - 0303-6979
VL - 38
SP - 721
EP - 731
JO - Journal of Clinical Periodontology
JF - Journal of Clinical Periodontology
IS - 8
ER -
