title: A Method to Isolate, Purify, and Characterize Human Periodontal Ligament Stem Cells.
abstract: Human periodontal ligament stem cells (PDLSCs) are a unique population of mesenchymal stem cells (MSCs) that demonstrate the capacity to generate cementum- and periodontal ligament-like structures in vivo. As such, PDLSCs represent a promising cell-based therapy in reconstructive dentistry for the treatment of periodontal disease. The present chapter describes two methods for isolating PDLSCs from human PDL tissue including traditional plastic adherence, and immunomagnetic selection based on the expression of MSC-associated surface markers STRO-1 antigen, CD146 (MUC-18), CD29 (Integrin β-1), CD44, and CD106 (VCAM-1). Although no single antibody demonstrates specificity for MSCs, isolation based on expression of individual markers results in homogenous preparations of PDLSCs. Methods to further characterize the immunophenotype and multipotent capacity of PDLSCs to differentiate into adipocytes, osteoblast-, and cementoblast-like cells in vitro, and cementum- and periodontal ligament-like tissues in vivo, are also described.
authors.affiliation: Colgate Australian Dental Research Centre, Dental School, University of Adelaide, Adelaide, SA, Australia.
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Mrozik
authors.affiliation: Mesenchymal Stem Cell Group, Adelaide Medical School, Faculty of Health Sciences, University of Adelaide, Adelaide, Adelaide, SA, 5005, Australia.
authors.forename: Stan
authors.initials: S
authors.lastname: Gronthos
authors.affiliation: Department of Anatomy and Cell BiologySchool of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA.
authors.forename: Songtao
authors.initials: S
authors.lastname: Shi
authors.affiliation: Colgate Australian Clinical Dental Research Centre, Dental School, University of Adelaide, Frome Road, Adelaide, SA, 5005, Australia.
authors.forename: P Mark
authors.initials: PM
authors.lastname: Bartold
mesh_terms: D000818:Animals; D015415:Biomarkers; D018929:Cell Culture Techniques / Q000379:methods; D002454:Cell Differentiation; D002469:Cell Separation / Q000379:methods; D003114:Colony-Forming Units Assay; D006801:Humans; D007150:Immunohistochemistry; D018189:Immunomagnetic Separation / Q000379:methods; D016130:Immunophenotyping / Q000379:methods; D059630:Mesenchymal Stem Cells / Q000166:cytology / Q000378:metabolism; D010513:Periodontal Ligament / Q000166:cytology*; D010641:Phenotype; D033581:Stem Cell Transplantation; D013234:Stem Cells / Q000166:cytology* / Q000378:metabolism*
chemical_list: D015415:Biomarkers
keywords: Adherence isolation; Differentiation potential; Immunomagnetic isolation; Mesenchymal stem cells; Periodontal ligament stem cells