Abstract
Periodontal ligament (PDL) is a specialized connective tissue that connects cementum and alveolar bone to maintain and support the teeth in situ and preserve tissue homeostasis. Recent studies have revealed the existence of stem cells in human dental tissues including periodontal ligament that play an important role, not only in the maintenance of the periodontium but also in promoting periodontal regeneration. In this study, human periodontal ligament cells (hPDLCs) were isolated by outgrowth and enzymatic dissociation methods. Expression of surface markers on PDLCs as human mesenchymal stem cells (MSCs) was identified by flow cytometry. In addition, proliferation and differentiation capacity of cultured cells to osteoblasts, adipocytes were evaluated. As a result, we successfully cultured cells from the human periodontal ligament tissues. PDLCs express mesenchymal stem cell (MSC) markers such as CD44, CD73, and CD90 and do not express CD34, CD45, and HLA-DR. PDLCs also possess the multipotential to differentiate into various types of cells, such as osteoblast and adipocytes, in vitro. Therefore, these cells have high potential to serve as materials for tissue engineering, especially dental tissue engineering.
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This research is funded by Vietnam Ministry of Science and Technology under grant number ĐTĐL.2012-G/34.
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Editor: T. Okamoto
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Tran, H.L.B., Doan, V.N., Le, H.T.N. et al. Various methods for isolation of multipotent human periodontal ligament cells for regenerative medicine. In Vitro Cell.Dev.Biol.-Animal 50, 597–602 (2014). https://doi.org/10.1007/s11626-014-9748-z
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DOI: https://doi.org/10.1007/s11626-014-9748-z