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Int. J. Mol. Sci. 2015, 16(6), 13633-13648; doi:10.3390/ijms160613633

Human Gingival Integration-Free iPSCs; a Source for MSC-Like Cells

1
Department of Oral Implantology, Osaka Dental University, Hirakata, Osaka 573-1121, Japan
2
Department of Biomaterials, Osaka Dental University, Hirakata, Osaka 573-1121, Japan
3
Department of Bioresources for Drug Discovery, National Institute of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka 567-0085, Japan
4
Research and Development Center for Cell Therapy, Foundation for Biomedical Research and Innovation, Kobe, Hyougo 650-0047, Japan
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Charles J. Malemud
Received: 7 May 2015 / Revised: 1 June 2015 / Accepted: 9 June 2015 / Published: 15 June 2015
(This article belongs to the Section Biochemistry, Molecular and Cellular Biology)
View Full-Text   |   Download PDF [2386 KB, uploaded 15 June 2015]   |  

Abstract

Mesenchymal stem cells (MSCs) are considered a potential autologous therapy for tissue engineering. The available procedures for MSC retrieval from patients are invasive, and their limited in vitro proliferation restricts their use in the treatment of damaged tissues. Therefore, it is important to establish an alternative and safe source of MSCs. The objective of this study was to demonstrate induced pluripotent stem cell (iPSC) generation from a combination of an accessible source tissue and an integration-free method; we also attempted the differentiation of iPSCs into MSC-like cells (MSLCs) for future autologous tissue engineering. iPSCs were derived from human gingival tissues, which are easily accessible in the field of dentistry, via the use of non-integrating episomal plasmids. Established iPSCs expressed embryonic stem (ES) cell-specific markers, as assessed by gene analysis and immunocytochemistry. Embryoid bodies and teratoma formation were formed from iPSCs, showing their capacity to differentiate into three germ layers. Furthermore, we were successful in differentiating iPSCs into MSLCs. They tested positively for their capacity of trilineage differentiation. Our results demonstrate that human gingival integration-free iPSCs, readily accessible stem cells generated using episomal plasmid vectors, are a promising source of MSLCs, which can be used in tissue regeneration. View Full-Text
Keywords: human gingival tissues; episomal vectors; mesenchymal; plasmid; pluripotent; gingival fibroblasts human gingival tissues; episomal vectors; mesenchymal; plasmid; pluripotent; gingival fibroblasts
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Umezaki, Y.; Hashimoto, Y.; Nishishita, N.; Kawamata, S.; Baba, S. Human Gingival Integration-Free iPSCs; a Source for MSC-Like Cells. Int. J. Mol. Sci. 2015, 16, 13633-13648.

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