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|Title:||Generation of functional mesenchymal stem cells from different induced pluripotent stem cell lines|
|Citation:||Stem Cells and Development, 2014; 23(10):1084-1096|
|Publisher:||Mary Ann Liebert|
|Kim Hynes, Danijela Menicanin, Krzysztof Mrozik, Stan Gronthos, and P. Mark Bartold|
|Abstract:||The therapeutic potential of mesenchymal stem cells (MSC) has highlighted the need for identifying easily accessible and reliable sources of these cells. An alternative source for obtaining large populations of MSC is through the controlled differentiation of induced pluripotent stem cells (iPSC). In the present study, colonies of iPSC were cultured in MSC culture media for 2 weeks. Serial passaging then selected for fast growing MSC-like cells with a typical fibroblastic morphology and the capacity to proliferate on standard culture flasks without feeder cells. MSC-like cells were developed from iPSC lines arising from three different somatic tissues: gingiva, periodontal ligament (PDL), and lung. The iPSC-MSC like cells expressed key MSC-associated markers (CD73, CD90, CD105, CD146, and CD166) and lacked expression of pluripotent markers (TRA160, TRA181, and alkaline phosphatase) and hematopoietic markers (CD14, CD34, and CD45). In vitro iPSC-MSC-like cells displayed the capacity to differentiate into osteoblasts, adipocytes, and chondrocytes. In vivo subcutaneous implantation of the iPSC-MSC-like cells into NOD/SCID mice demonstrated that only the PDL-derived iPSC-MSC-like cells exhibited the capacity to form mature mineralized structures which were histologically similar to mature bone. These findings demonstrate that controlled induction of iPSC into fibroblastic-like cells that phenotypically and functionally resemble adult MSC is an attractive approach to obtain a readily available source of progenitor cells for orthopedic and dental-related tissue-engineering applications. However, a detailed characterization of the iPSC-MSC-like cells will be important, as MSC-like cells derived from different iPSC lines exhibit variability in their differentiation capacity.|
|Keywords:||Cell Line; Animals; Mice, Inbred NOD; Humans; Mice; Mice, SCID; Antigens, CD; Mesenchymal Stem Cell Transplantation; Cell Differentiation; Adult; Female; Induced Pluripotent Stem Cells; Mesenchymal Stromal Cells; Heterografts|
|Rights:||© Mary Ann Liebert|
|Appears in Collections:||Dentistry publications|
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