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Roman A, Páll E, Mihu CM, Petruţiu AS, Barbu-Tudoran L, Câmpian RS, Florea A, Georgiu C. Tracing CD34+ Stromal Fibroblasts in Palatal Mucosa and Periodontal Granulation Tissue as a Possible Cell Reservoir for Periodontal Regeneration. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2015; 21:837-848. [PMID: 26040442 DOI: 10.1017/s1431927615000598] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The aim of the present research was to trace CD34+ stromal fibroblastic cells (CD34+ SFCs) in the palatal connective tissue harvested for muco-gingival surgical procedures and in granulation tissues from periodontal pockets using immunohistochemical and transmission electron microscopy. Immunohistochemical analysis targeted the presence of three antigens: CD31, α-smooth muscle actin (α-SMA), and CD34. In the palate, CD31 staining revealed a colored inner ring of the vessels representing the endothelium, α-SMA+ was located in the medial layer of the vasculature, and CD34 was intensely expressed by endothelial cells and artery adventitial cells (considered to be CD34+ SFCs). Granulation tissue showed the same pattern for CD31+ and α-SMA, but a different staining pattern for CD34. Ultrastructural examination of the palatal tissue highlighted perivascular cells with fibroblast-like characteristics and pericytes in close spatial relationship to endothelial cells. The ultrastructural evaluation of granulation tissue sections confirmed the presence of neovasculature and the inflammatory nature of this tissue. The present study traced the presence of CD34+ SFCs and of pericytes in the palatal connective tissue thus highlighting once more its intrinsic regenerative capabilities. The clinical and systemic factors triggering mobilization and influencing the fate of local CD34+SCFs and other progenitors are issues to be further investigated.
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Affiliation(s)
- Alexandra Roman
- 1Department of Periodontology, Faculty of Dental Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,15 V. Babeş Street,400012 Cluj-Napoca,Romania
| | - Emőke Páll
- 1Department of Periodontology, Faculty of Dental Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,15 V. Babeş Street,400012 Cluj-Napoca,Romania
| | - Carmen M Mihu
- 3Department of Histology, Faculty of Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,6 L. Pasteur Street,400349 Cluj-Napoca,Romania
| | - Adrian S Petruţiu
- 1Department of Periodontology, Faculty of Dental Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,15 V. Babeş Street,400012 Cluj-Napoca,Romania
| | - Lucian Barbu-Tudoran
- 4Department of Molecular Biology and Biotechnologies, Faculty of Biology and Geology,Babeş-Bolyai University,5-7 Clinicilor Street,400006 Cluj-Napoca,Romania
| | - Radu S Câmpian
- 5Department of Oral Rehabilitation, Faculty of Dental Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,15 V. Babeş Street,400012 Cluj-Napoca,Romania
| | - Adrian Florea
- 6Department of Cell and Molecular Biology, Faculty of Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,6 L. Pasteur Street,400349 Cluj-Napoca,Romania
| | - Carmen Georgiu
- 7Department of Pathology, Faculty of Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,8 V. Babeş Street,400012 Cluj-Napoca,Romania
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153
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Age-related decline in the matrix contents and functional properties of human periodontal ligament stem cell sheets. Acta Biomater 2015; 22:70-82. [PMID: 25922305 DOI: 10.1016/j.actbio.2015.04.024] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 04/16/2015] [Accepted: 04/19/2015] [Indexed: 02/08/2023]
Abstract
In this study, periodontal ligament (PDL) stem cells (PDLSCs) derived from different-aged donors were used to evaluate the effect of aging on cell sheet formation. The activity of PDLSCs was first determined based on their colony-forming ability, surface markers, proliferative/differentiative potentials, senescence-associated β-galactosidase (SA-βG) staining, and expression of pluripotency-associated transcription factors. The ability of these cells to form sheets, based on their extracellular matrix (ECM) contents and their functional properties necessary for osteogenic differentiation, was evaluated to predict the age-related changes in the regenerative capacity of the cell sheets in their further application. It was found that human PDLSCs could be isolated from the PDL tissue of different-aged subjects. However, the ability of the PDLSCs to proliferate and to undergo osteogenic differentiation and their expression of pluripotency-associated transcription factors displayed age-related decreases. In addition, these cells exhibited an age-related increase in SA-βG expression. Aged cells showed an impaired ability to form functional cell sheets, as determined by morphological observations and Ki-67 immunohistochemistry staining. Based on the production of ECM proteins, such as fibronectin, integrin β1, and collagen type I; alkaline phosphatase (ALP) activity; and the expression of osteogenic genes, such as ALP, Runt-related transcription factor 2, and osteocalcin, cell sheets formed by PDLSCs derived from older donors demonstrated a less potent osteogenic capacity compared to those formed by PDLSCs from younger donors. Our data suggest that the age-associated decline in the matrix contents and osteogenic properties of PDLSC sheets should be taken into account in cell sheet engineering research and clinical periodontal regenerative therapy.
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154
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Sawada K, Takedachi M, Yamamoto S, Morimoto C, Ozasa M, Iwayama T, Lee CM, Okura H, Matsuyama A, Kitamura M, Murakami S. Trophic factors from adipose tissue-derived multi-lineage progenitor cells promote cytodifferentiation of periodontal ligament cells. Biochem Biophys Res Commun 2015; 464:299-305. [PMID: 26116772 DOI: 10.1016/j.bbrc.2015.06.147] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 06/22/2015] [Indexed: 01/09/2023]
Abstract
Stem and progenitor cells are currently being investigated for their applicability in cell-based therapy for periodontal tissue regeneration. We recently demonstrated that the transplantation of adipose tissue-derived multi-lineage progenitor cells (ADMPCs) enhances periodontal tissue regeneration in beagle dogs. However, the molecular mechanisms by which transplanted ADMPCs induce periodontal tissue regeneration remain to be elucidated. In this study, trophic factors released by ADMPCs were examined for their paracrine effects on human periodontal ligament cell (HPDL) function. ADMPC conditioned medium (ADMPC-CM) up-regulated osteoblastic gene expression, alkaline phosphatase activity and calcified nodule formation in HPDLs, but did not significantly affect their proliferative response. ADMPCs secreted a number of growth factors, including insulin-like growth factor binding protein 6 (IGFBP6), hepatocyte growth factor and vascular endothelial growth factor. Among these, IGFBP6 was most highly expressed. Interestingly, the positive effects of ADMPC-CM on HPDL differentiation were significantly suppressed by transfecting ADMPCs with IGFBP6 siRNA. Our results suggest that ADMPCs transplanted into a defect in periodontal tissue release trophic factors that can stimulate the differentiation of HPDLs to mineralized tissue-forming cells, such as osteoblasts and cementoblasts. IGFBP6 may play crucial roles in ADMPC-induced periodontal regeneration.
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Affiliation(s)
- Keigo Sawada
- Department of Periodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Masahide Takedachi
- Department of Periodontology, Osaka University Graduate School of Dentistry, Osaka, Japan.
| | - Satomi Yamamoto
- Department of Periodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Chiaki Morimoto
- Department of Periodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Masao Ozasa
- Department of Periodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Tomoaki Iwayama
- Department of Periodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Chun Man Lee
- Medical Center for Translational Research, Osaka University Hospital, Osaka, Japan
| | - Hanayuki Okura
- Research on Disease Bioresources, Platform of Therapeutics for Rare Disease, National Institute of Biomedical Innovation, Osaka, Japan
| | - Akifumi Matsuyama
- Research on Disease Bioresources, Platform of Therapeutics for Rare Disease, National Institute of Biomedical Innovation, Osaka, Japan
| | - Masahiro Kitamura
- Department of Periodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Shinya Murakami
- Department of Periodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
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155
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Prateeptongkum E, Klingelhöffer C, Müller S, Ettl T, Morsczeck C. Characterization of progenitor cells and stem cells from the periodontal ligament tissue derived from a single person. J Periodontal Res 2015; 51:265-72. [PMID: 26108342 DOI: 10.1111/jre.12306] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2015] [Indexed: 01/05/2023]
Abstract
BACKGROUND Periodontal ligament progenitor cells (PDLPs) and PDL stem cells (PDLSCs) are progenitor and stem cells that were isolated from PDL tissues using the outgrowth and single cell isolation methods respectively. The differences between PDLPs and PDLSCs characteristics could be observed from previous studies. However, these cells were obtained from different patients. This study was the first report to compare the characterization of PDLPs and PDLSCs from the same person. MATERIAL AND METHODS The characterization of PDLPs and PDLSCs includes flow cytometry analysis, cell proliferation assay and the assessment of the colony-forming unit fibroblast. The osteogenic differentiation was evaluated by alkaline phosphatase activity, biomineralization (alizarin red staining) and gene expression of osteogenic markers. The adipogenic differentiation was examined by Oil Red O staining and adipocyte-related gene expression. RESULTS Mesenchymal stem cell marker expression and colony-forming unit fibroblast analysis of PDLPs and PDLSCs were similar. However, PDLSCs grew faster than PDLPs on days 3 and 5 of the cell proliferation assay. Both PDLPs and PDLSCs could differentiate into osteoblast and adipocyte-like cells. However, the mineralization of PDLSCs was stronger than that of PDLPs. CONCLUSIONS The characteristics of undifferentiated PDL cells in our study were not significantly impacted by the isolation method. We assumed that both PDLPs and PDLSCs are valuable cell sources for periodontal regeneration. However, PDLSCs have a possible advantage for the regeneration of alveolar bone.
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Affiliation(s)
- E Prateeptongkum
- Department of Cranio- and Maxillofacial Surgery, University Hospital Regensburg, Regensburg, Germany
| | - C Klingelhöffer
- Department of Cranio- and Maxillofacial Surgery, University Hospital Regensburg, Regensburg, Germany
| | - S Müller
- Department of Cranio- and Maxillofacial Surgery, University Hospital Regensburg, Regensburg, Germany
| | - T Ettl
- Department of Cranio- and Maxillofacial Surgery, University Hospital Regensburg, Regensburg, Germany
| | - C Morsczeck
- Department of Cranio- and Maxillofacial Surgery, University Hospital Regensburg, Regensburg, Germany
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156
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Manescu A, Giuliani A, Mohammadi S, Tromba G, Mazzoni S, Diomede F, Zini N, Piattelli A, Trubiani O. Osteogenic potential of dualblocks cultured with human periodontal ligament stem cells: in vitro and synchrotron microtomography study. J Periodontal Res 2015; 51:112-24. [PMID: 26094874 DOI: 10.1111/jre.12289] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVE In the present study, the early stages of in vitro bone formation in collagenated porcine scaffolds cultured with human periodontal ligament cells were investigated. The comparison between the osteogenic potential of this structure in basal and differentiating culture media was explored to predict the mechanism of its biological behavior as graft in human defect. Results were validated by synchrotron radiation X-Ray phase contrast computed microtomography (micro-CT). As the periodontal disease plays a key role in systemic and oral diseases, it is crucial to find advanced therapeutic clinical interventions to repair periodontal defects. This has been recently explored using cells and tissues developed in vitro that should ideally be immunologically, functionally, structurally and mechanically identical to the native tissue. MATERIAL AND METHODS In vitro cultures of human periodontal ligament cells, easily obtained by scraping of alveolar crestal and horizontal fibers of the periodontal ligament, were seeded on to collagenated porcine blocks constituted by natural cancellous and cortical bone. 3D images were obtained by synchrotron radiation micro-CT and processed with a phase-retrieval algorithm based on the transport of intensity equation. RESULTS Starting from the second week of culture, newly formed mineralized bone was detected in all the scaffolds, both in basal and differentiating media. Bone mineralization was proved to occur preferentially in the trabecular portion and in differentiating media. CONCLUSION The chosen method, supported by phase contrast micro-CT analysis, successfully and quantitatively monitored the early stages of bone formation and the rate of the bioscaffold resorption in basal and differentiating culture media.
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Affiliation(s)
- A Manescu
- Dipartimento di Scienze Cliniche Specialistiche e Odontostomatologiche, Sezione di Biochimica, Biologia e Fisica, Università Politecnica delle Marche, Ancona, Italy
| | - A Giuliani
- Dipartimento di Scienze Cliniche Specialistiche e Odontostomatologiche, Sezione di Biochimica, Biologia e Fisica, Università Politecnica delle Marche, Ancona, Italy
| | - S Mohammadi
- Sincrotrone Trieste S.C.p.A, Basovizza (Trieste), Italy
| | - G Tromba
- Sincrotrone Trieste S.C.p.A, Basovizza (Trieste), Italy
| | - S Mazzoni
- Dipartimento di Scienze Cliniche Specialistiche e Odontostomatologiche, Sezione di Biochimica, Biologia e Fisica, Università Politecnica delle Marche, Ancona, Italy
| | - F Diomede
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Stem Cells and Regenerative Medicine, University of Chieti-Pescara, Chieti, Italy
| | - N Zini
- National Research Council of Italy, IGM and SC Laboratory of Musculoskeletal Cell Biology, IOR, Bologna, Italy
| | - A Piattelli
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Stem Cells and Regenerative Medicine, University of Chieti-Pescara, Chieti, Italy
| | - O Trubiani
- Department of Medical, Oral and Biotechnological Sciences, Laboratory of Stem Cells and Regenerative Medicine, University of Chieti-Pescara, Chieti, Italy
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157
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Bartold PM, Gronthos S, Ivanovski S, Fisher A, Hutmacher DW. Tissue engineered periodontal products. J Periodontal Res 2015; 51:1-15. [PMID: 25900048 DOI: 10.1111/jre.12275] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2015] [Indexed: 01/25/2023]
Abstract
Attainment of periodontal regeneration is a significant clinical goal in the management of advanced periodontal defects arising from periodontitis. Over the past 30 years numerous techniques and materials have been introduced and evaluated clinically and have included guided tissue regeneration, bone grafting materials, growth and other biological factors and gene therapy. With the exception of gene therapy, all have undergone evaluation in humans. All of the products have shown efficacy in promoting periodontal regeneration in animal models but the results in humans remain variable and equivocal concerning attaining complete biological regeneration of damaged periodontal structures. In the early 2000s, the concept of tissue engineering was proposed as a new paradigm for periodontal regeneration based on molecular and cell biology. At this time, tissue engineering was a new and emerging field. Now, 14 years later we revisit the concept of tissue engineering for the periodontium and assess how far we have come, where we are currently situated and what needs to be done in the future to make this concept a reality. In this review, we cover some of the precursor products, which led to our current position in periodontal tissue engineering. The basic concepts of tissue engineering with special emphasis on periodontal tissue engineering products is discussed including the use of mesenchymal stem cells in bioscaffolds and the emerging field of cell sheet technology. Finally, we look into the future to consider what CAD/CAM technology and nanotechnology will have to offer.
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Affiliation(s)
- P M Bartold
- Colgate Australian Clinical Dental Research Centre, Dental School, University of Adelaide, Adelaide, SA, Australia
| | - S Gronthos
- School of Medical Sciences, University of Adelaide, Adelaide, SA, Australia
| | - S Ivanovski
- Griffith Health Institute, School of Dentistry and Oral Health, Griffith University, Gold Coast, Qld, Australia
| | - A Fisher
- Griffith Health Institute, School of Dentistry and Oral Health, Griffith University, Gold Coast, Qld, Australia
| | - D W Hutmacher
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Qld, Australia
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158
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Saito MT, Silvério KG, Casati MZ, Sallum EA, Jr FHN. Tooth-derived stem cells: Update and perspectives. World J Stem Cells 2015; 7:399-407. [PMID: 25815123 PMCID: PMC4369495 DOI: 10.4252/wjsc.v7.i2.399] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 10/22/2014] [Accepted: 11/10/2014] [Indexed: 02/06/2023] Open
Abstract
Tissue engineering is an emerging field of science that focuses on creating suitable conditions for the regeneration of tissues. The basic components for tissue engineering involve an interactive triad of scaffolds, signaling molecules, and cells. In this context, stem cells (SCs) present the characteristics of self-renewal and differentiation capacity, which make them promising candidates for tissue engineering. Although they present some common markers, such as cluster of differentiation (CD)105, CD146 and STRO-1, SCs derived from various tissues have different patterns in relation to proliferation, clonogenicity, and differentiation abilities in vitro and in vivo. Tooth-derived tissues have been proposed as an accessible source to obtain SCs with limited morbidity, and various tooth-derived SCs (TDSCs) have been isolated and characterized, such as dental pulp SCs, SCs from human exfoliated deciduous teeth, periodontal ligament SCs, dental follicle progenitor cells, SCs from apical papilla, and periodontal ligament of deciduous teeth SCs. However, heterogeneity among these populations has been observed, and the best method to select the most appropriate TDSCs for regeneration approaches has not yet been established. The objective of this review is to outline the current knowledge concerning the various types of TDSCs, and discuss the perspectives for their use in regenerative approaches.
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159
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Periodontal ligament stem cells: current status, concerns, and future prospects. Stem Cells Int 2015; 2015:972313. [PMID: 25861283 PMCID: PMC4378705 DOI: 10.1155/2015/972313] [Citation(s) in RCA: 159] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 03/03/2015] [Accepted: 03/03/2015] [Indexed: 12/12/2022] Open
Abstract
Periodontal ligament stem cells (PDLSCs), which reside in the perivascular space of the periodontium, possess characteristics of mesenchymal stem cells and are a promising tool for periodontal regeneration. Recently, great progress has been made in PDLSC transplantation. Investigators are attempting to maximize the proliferation and differentiation potential of PDLSCs by modifying culture conditions and applying growth factors. Nevertheless, problems remain. First, incomparability among different studies must be minimized by establishing standard guidelines for culture and identification of PDLSCs. Notably, attention should be paid to the biological safety of PDLSC transplantation. The present review updates the latest findings regarding PDLSCs and discusses standard criteria for culture and identification of PDLSCs. Finally, the review calls for careful consideration of PDLSC transplantation safety.
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160
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Liu J, Yu F, Sun Y, Jiang B, Zhang W, Yang J, Xu GT, Liang A, Liu S. Concise Reviews: Characteristics and Potential Applications of Human Dental Tissue-Derived Mesenchymal Stem Cells. Stem Cells 2015; 33:627-38. [PMID: 25447379 DOI: 10.1002/stem.1909] [Citation(s) in RCA: 231] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 10/21/2014] [Accepted: 11/07/2014] [Indexed: 12/16/2022]
Affiliation(s)
- Junjun Liu
- Department of Ophthalmology; Shanghai Tenth People's Hospital
| | - Fang Yu
- Laboratory of Oral Biomedical Science and Translational Medicine, School of Stomatology; Tongji University; Shanghai People's Republic of China
| | - Yao Sun
- Laboratory of Oral Biomedical Science and Translational Medicine, School of Stomatology; Tongji University; Shanghai People's Republic of China
| | - Beizhan Jiang
- Laboratory of Oral Biomedical Science and Translational Medicine, School of Stomatology; Tongji University; Shanghai People's Republic of China
| | - Wenjun Zhang
- Translational Center for Stem Cell Research, Tongji Hospital; Tongji University School of Medicine; Shanghai People's Republic of China
| | - Jianhua Yang
- Department of Ophthalmology; Shanghai Tenth People's Hospital
| | - Guo-Tong Xu
- Department of Ophthalmology; Shanghai Tenth People's Hospital
| | - Aibin Liang
- Translational Center for Stem Cell Research, Tongji Hospital; Tongji University School of Medicine; Shanghai People's Republic of China
| | - Shangfeng Liu
- Department of Ophthalmology; Shanghai Tenth People's Hospital
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161
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Cementum and Periodontal Ligament Regeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 881:207-36. [PMID: 26545752 DOI: 10.1007/978-3-319-22345-2_12] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The unique anatomy and composition of the periodontium make periodontal tissue healing and regeneration a complex process. Periodontal regeneration aims to recapitulate the crucial stages of wound healing associated with periodontal development in order to restore lost tissues to their original form and function and for regeneration to occur, healing events must progress in an ordered and programmed sequence both temporally and spatially, replicating key developmental events. A number of procedures have been employed to promote true and predictable regeneration of the periodontium. Principally, the approaches are based on the use of graft materials to compensate for the bone loss incurred as a result of periodontal disease, use of barrier membranes for guided tissue regeneration and use of bioactive molecules. More recently, the concept of tissue engineering has been integrated into research and applications of regenerative dentistry, including periodontics, to aim to manage damaged and lost oral tissues, through reconstruction and regeneration of the periodontium and alleviate the shortcomings of more conventional therapeutic options. The essential components for generating effective cellular based therapeutic strategies include a population of multi-potential progenitor cells, presence of signalling molecules/inductive morphogenic signals and a conductive extracellular matrix scaffold or appropriate delivery system. Mesenchymal stem cells are considered suitable candidates for cell-based tissue engineering strategies owing to their extensive expansion rate and potential to differentiate into cells of multiple organs and systems. Mesenchymal stem cells derived from multiple tissue sources have been investigated in pre-clinical animal studies and clinical settings for the treatment and regeneration of the periodontium.
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162
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Sanz AR, Carrión FS, Chaparro AP. Mesenchymal stem cells from the oral cavity and their potential value in tissue engineering. Periodontol 2000 2014; 67:251-67. [DOI: 10.1111/prd.12070] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2014] [Indexed: 12/26/2022]
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163
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Smith PC, Martínez C, Cáceres M, Martínez J. Research on growth factors in periodontology. Periodontol 2000 2014; 67:234-50. [DOI: 10.1111/prd.12068] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2013] [Indexed: 12/16/2022]
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164
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Hakki SS, Kayis SA, Hakki EE, Bozkurt SB, Duruksu G, Unal ZS, Turaç G, Karaoz E. Comparison of mesenchymal stem cells isolated from pulp and periodontal ligament. J Periodontol 2014; 86:283-91. [PMID: 25325708 DOI: 10.1902/jop.2014.140257] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Cell-based therapy using mesenchymal stem cells (MSCs) seems promising to obtain regeneration of dental tissues. A comparison of tissue sources, including periodontal ligament (PDL) versus pulp (P), could provide critical information to select an appropriate MSC population for designing predictable regenerative therapies. The purpose of this study is to compare the proliferation and stemness and the MSC-specific and mineralized tissue-specific gene expression of P-MSCs and PDL-MSCs. METHODS MSCs were obtained from PDL and P tissue of premolars (n = 3) extracted for orthodontic reasons. MSC proliferation was evaluated using a real-time cell analyzer for 160 hours. Telomerase activity was evaluated by a telomeric repeat amplification protocol assay based on enzyme-linked immunosorbent assay. Total RNA was isolated from the MSCs on day 3. A polymerase chain reaction (PCR) array was used to compare the expression of MSC-specific genes. The expression of mineralized tissue-associated genes, including Type I collagen (COL I), runt-related transcription factor 2 (RunX2), bone sialoprotein (BSP), and osteocalcin (OCN) messenger RNA (mRNA), was evaluated using quantitative real-time PCR. RESULTS Higher proliferation potential and telomerase activity were observed in the P-MSCs compared to PDL-MSCs of premolar teeth. Fourteen of 84 genes related to MSCs were expressed differently in the PDL-MSCs versus the P-MSCs. The expressions of bone morphogenetic protein 2 (BMP2) and BMP6; sex-determining region Y-box 9 (SOX9); integrin, alpha 6 (ITGA6); melanoma cell adhesion molecule (MCAM); phosphatidylinositol glycan anchor biosynthesis, class S (PIGS); prominin 1 (PROM1); ribosomal protein L13A (RPL13A); and microphthalmia-associated transcription factor (MITF) were higher in the P-MSCs compared to the PDL-MSCs, and higher expression of matrix metalloproteinase 2 (MMP2), interleukin (IL)-6, insulin (INS), alanyl (membrane) aminopeptidase (ANPEP), and IL-10 were observed in the PDL-MSCs. However, there was no statistically significant difference in the expression of mineralized tissue-associated genes, including BSP and RunX2, between the P-MSCs and the PDL-MSCs. Higher expression of COL I and lower expression of OCN mRNA transcripts were noted in the PDL-MSCs compared to the P-MSCs. CONCLUSIONS The results of this study suggest that MSCs isolated from P and PDL tissues show different cellular behavior. To increase the predictability of MSC-based regenerative treatment, differences in dental tissue-derived MSCs and favorable aspects of cell sources should be further clarified.
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Affiliation(s)
- Sema S Hakki
- Department of Periodontology, Faculty of Dentistry, Selçuk University, Konya, Turkey
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165
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Vecchiatini R, Penolazzi L, Lambertini E, Angelozzi M, Morganti C, Mazzitelli S, Trombelli L, Nastruzzi C, Piva R. Effect of dynamic three-dimensional culture on osteogenic potential of human periodontal ligament-derived mesenchymal stem cells entrapped in alginate microbeads. J Periodontal Res 2014; 50:544-53. [DOI: 10.1111/jre.12225] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/11/2014] [Indexed: 01/28/2023]
Affiliation(s)
- R. Vecchiatini
- Department of Biomedical and Specialty Surgical Sciences; Ferrara University; Ferrara Italy
| | - L. Penolazzi
- Department of Biomedical and Specialty Surgical Sciences; Ferrara University; Ferrara Italy
| | - E. Lambertini
- Department of Biomedical and Specialty Surgical Sciences; Ferrara University; Ferrara Italy
| | - M. Angelozzi
- Department of Biomedical and Specialty Surgical Sciences; Ferrara University; Ferrara Italy
| | - C. Morganti
- Department of Biomedical and Specialty Surgical Sciences; Ferrara University; Ferrara Italy
| | - S. Mazzitelli
- Department of Life Sciences and Biotechnology; Ferrara University; Ferrara Italy
| | - L. Trombelli
- Department of Biomedical and Specialty Surgical Sciences; Ferrara University; Ferrara Italy
- Research Centre for the Study of Periodontal and Peri-implant Diseases; Ferrara University; Ferrara Italy
| | - C. Nastruzzi
- Department of Life Sciences and Biotechnology; Ferrara University; Ferrara Italy
| | - R. Piva
- Department of Biomedical and Specialty Surgical Sciences; Ferrara University; Ferrara Italy
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166
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Xu Q, Li B, Yuan L, Dong Z, Zhang H, Wang H, Sun J, Ge S, Jin Y. Combination of platelet-rich plasma within periodontal ligament stem cell sheets enhances cell differentiation and matrix production. J Tissue Eng Regen Med 2014; 11:627-636. [DOI: 10.1002/term.1953] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2014] [Revised: 06/17/2014] [Accepted: 07/17/2014] [Indexed: 01/25/2023]
Affiliation(s)
- Qiu Xu
- State Key Laboratory of Military Stomatology, Centre for Tissue Engineering; Fourth Military Medical University; Xi'an Shaanxi People's Republic of China
- Department of Periodontology, School of Stomatology; Zunyi Medical Collage; Guizhou People's Republic of China
| | - Bei Li
- State Key Laboratory of Military Stomatology, Centre for Tissue Engineering; Fourth Military Medical University; Xi'an Shaanxi People's Republic of China
- Research and Development Centre for Tissue Engineering; Fourth Military Medical University; Xi'an Shaanxi People's Republic of China
| | - Lin Yuan
- Department of Stomatology; First Affiliated Hospital, Guangzhou Medical University; Guangdong People's Republic of China
| | - Zhiwei Dong
- Department of Oral and Maxillofacial Surgery; General Hospital of Shenyang Military Area Command; Liaoning People's Republic of China
| | - Hao Zhang
- State Key Laboratory of Military Stomatology, Centre for Tissue Engineering; Fourth Military Medical University; Xi'an Shaanxi People's Republic of China
| | - Han Wang
- State Key Laboratory of Military Stomatology, Centre for Tissue Engineering; Fourth Military Medical University; Xi'an Shaanxi People's Republic of China
- Department of Stomatology; First Affiliated Hospital, Guangzhou Medical University; Guangdong People's Republic of China
| | - Jin Sun
- State Key Laboratory of Military Stomatology, Centre for Tissue Engineering; Fourth Military Medical University; Xi'an Shaanxi People's Republic of China
- Department of Stomatology; First Affiliated Hospital, Guangzhou Medical University; Guangdong People's Republic of China
| | - Song Ge
- Department of Periodontology, School of Stomatology; Zunyi Medical Collage; Guizhou People's Republic of China
| | - Yan Jin
- State Key Laboratory of Military Stomatology, Centre for Tissue Engineering; Fourth Military Medical University; Xi'an Shaanxi People's Republic of China
- Research and Development Centre for Tissue Engineering; Fourth Military Medical University; Xi'an Shaanxi People's Republic of China
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167
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Adhesion and proliferation of human periodontal ligament cells on poly(2-methoxyethyl acrylate). BIOMED RESEARCH INTERNATIONAL 2014; 2014:102648. [PMID: 25165689 PMCID: PMC4140152 DOI: 10.1155/2014/102648] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 06/29/2014] [Indexed: 01/09/2023]
Abstract
Human periodontal ligament (PDL) cells obtained from extracted teeth are a potential cell source for tissue engineering. We previously reported that poly(2-methoxyethyl acrylate) (PMEA) is highly biocompatible with human blood cells. In this study, we investigated the adhesion, morphology, and proliferation of PDL cells on PMEA and other types of polymers to design an appropriate scaffold for tissue engineering. PDL cells adhered and proliferated on all investigated polymer surfaces except for poly(2-hydroxyethyl methacrylate) and poly[(2-methacryloyloxyethyl phosphorylcholine)-co-(n-butyl methacrylate)]. The initial adhesion of the PDL cells on PMEA was comparable with that on polyethylene terephthalate (PET). In addition, the PDL cells on PMEA spread well and exhibited proliferation behavior similar to that observed on PET. In contrast, platelets hardly adhered to PMEA. PMEA is therefore expected to be an excellent scaffold for tissue engineering and for culturing tissue-derived cells in a blood-rich environment.
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168
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Bright R, Hynes K, Gronthos S, Bartold PM. Periodontal ligament-derived cells for periodontal regeneration in animal models: a systematic review. J Periodontal Res 2014; 50:160-72. [PMID: 24965968 DOI: 10.1111/jre.12205] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVE Implantation of periodontal ligament stem cells is emerging as a potential periodontal regenerative procedure. This systematic review considers the evidence from animal models investigating the use of periodontal ligament stem cells for successful periodontal regeneration. MATERIAL AND METHODS PubMed, Embase, MEDLINE and Google Scholar were searched to December 2013 for quantitative studies examining the outcome of implanting periodontal ligament stem cells into experimental periodontal defects in animals. Inclusion criteria were: implantation of periodontal ligament stem cells into surgically created periodontal defects for periodontal regeneration; animal models only; source of cells either human or animal; and published in English. We followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. RESULTS From the literature search, 43 studies met the inclusion criteria. A wide variety of surgical defects were created in four species of animal (dog, rat, pig and sheep). Owing to wide variability in defect type, cell source and cell scaffold, no meta-analysis was possible. Outcome measures included new bone, new cementum and new connective tissue formation. In 70.5% of the results, statistically significant improvements of these measures was recorded. CONCLUSION These results are notable in that they indicate that irrespective of the defect type and animal model used, periodontal ligament stem cell implantation can be expected to result in a beneficial outcome for periodontal regeneration. It is recommended that there is sufficient evidence from preclinical animal studies to warrant moving to human studies to examine the efficacy, safety, feasibility (autologous vs. allogeneic transplantation) and delivery of periodontal ligament stem cells for periodontal regeneration.
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Affiliation(s)
- R Bright
- Colgate Australian Clinical Dental Research, School of Dentistry, University of Adelaide, Adelaide, South Australia, Australia
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169
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Lei M, Li K, Li B, Gao LN, Chen FM, Jin Y. Mesenchymal stem cell characteristics of dental pulp and periodontal ligament stem cells after in vivo transplantation. Biomaterials 2014; 35:6332-43. [PMID: 24824581 DOI: 10.1016/j.biomaterials.2014.04.071] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 04/17/2014] [Indexed: 12/13/2022]
Abstract
Mesenchymal stem cells (MSCs) isolated from human postnatal dental pulp and periodontal ligament (PDL) tissues can give rise to multilineage differentiation in vitro and generate related dental tissues in vivo. However, the cell properties of human dental pulp stem cells (DPSCs) and PDL stem cells (PDLSCs) after in vivo implantation remain largely unidentified. In this study, cells were re-isolated from in vivo-generated dental pulp-like and PDL-like tissues (termed re-DPCs and re-PDLCs, respectively) as a result of ectopic transplantation of human DPSC and PDLSC sheets. The cell characteristics in terms of colony-forming ability, cell surface antigens and multi-differentiation potentials were all evaluated before and after implantation. It was found that re-DPCs and re-PDLCs were of human and mesenchymal origin and positive for MSC markers such as STRO-1, CD146, CD29, CD90 and CD105; and, to some extent, re-DPCs could maintain their colony forming abilities. Moreover, both cell types were able to form mineral deposits and differentiate into adipocytes and chondrocytes; however, quantitative analysis and related gene expression determination showed that the osteo-/chondro-differentiation capabilities of re-DPCs and re-PDLCs were significantly reduced compared to those of DPSCs and PDLSCs, respectively (P < 0.05); re-PDLCs showed a greater reduction potential than re-DPCs. We conclude that DPSCs and PDLSCs may maintain their MSC characteristics after in vivo implantation and, compared to PDLSCs, DPSCs appear much more stable under in vivo conditions. These findings provide additional cellular and molecular evidence that supports expanding the use of dental tissue-derived stem cells in cell therapy and tissue engineering.
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Affiliation(s)
- Ming Lei
- State Key Laboratory of Military Stomatology, Department of Periodontology & Biomaterials Unit, School of Stomatology, Fourth Military Medical University, Xi'an, PR China; State Key Laboratory of Military Stomatology, Research and Development Center for Tissue Engineering, Fourth Military Medical University, Xi'an, PR China
| | - Kun Li
- State Key Laboratory of Military Stomatology, Department of Periodontology & Biomaterials Unit, School of Stomatology, Fourth Military Medical University, Xi'an, PR China; State Key Laboratory of Military Stomatology, Research and Development Center for Tissue Engineering, Fourth Military Medical University, Xi'an, PR China
| | - Bei Li
- State Key Laboratory of Military Stomatology, Research and Development Center for Tissue Engineering, Fourth Military Medical University, Xi'an, PR China
| | - Li-Na Gao
- State Key Laboratory of Military Stomatology, Department of Periodontology & Biomaterials Unit, School of Stomatology, Fourth Military Medical University, Xi'an, PR China; State Key Laboratory of Military Stomatology, Translational Research Team, School of Stomatology, Fourth Military Medical University, Xi'an, PR China
| | - Fa-Ming Chen
- State Key Laboratory of Military Stomatology, Department of Periodontology & Biomaterials Unit, School of Stomatology, Fourth Military Medical University, Xi'an, PR China; State Key Laboratory of Military Stomatology, Translational Research Team, School of Stomatology, Fourth Military Medical University, Xi'an, PR China.
| | - Yan Jin
- State Key Laboratory of Military Stomatology, Research and Development Center for Tissue Engineering, Fourth Military Medical University, Xi'an, PR China; State Key Laboratory of Military Stomatology, Translational Research Team, School of Stomatology, Fourth Military Medical University, Xi'an, PR China.
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170
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Tran HLB, Doan VN, Le HTN, Ngo LTQ. Various methods for isolation of multipotent human periodontal ligament cells for regenerative medicine. In Vitro Cell Dev Biol Anim 2014; 50:597-602. [PMID: 24719182 DOI: 10.1007/s11626-014-9748-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 03/12/2014] [Indexed: 01/09/2023]
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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171
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Chamila Prageeth Pandula P, Samaranayake L, Jin L, Zhang C. Periodontal ligament stem cells: an update and perspectives. ACTA ACUST UNITED AC 2014; 5:81-90. [DOI: 10.1111/jicd.12089] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 11/23/2013] [Indexed: 12/12/2022]
Affiliation(s)
| | - L.P. Samaranayake
- Department of Oral Biosciences; Faculty of Dentistry; The University of Hong Kong; Hong Kong China
| | - L.J. Jin
- Department of Periodontology; Faculty of Dentistry; The University of Hong Kong; Hong Kong China
| | - Chengfei Zhang
- Department of Comprehensive Dental Care; Faculty of Dentistry; The University of Hong Kong; Hong Kong China
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172
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Menicanin D, Mrozik KM, Wada N, Marino V, Shi S, Bartold PM, Gronthos S. Periodontal-ligament-derived stem cells exhibit the capacity for long-term survival, self-renewal, and regeneration of multiple tissue types in vivo. Stem Cells Dev 2014; 23:1001-11. [PMID: 24351050 DOI: 10.1089/scd.2013.0490] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Primary periodontal ligament stem cells (PDLSCs) are known to possess multidifferentiation potential and exhibit an immunophenotype similar to that described for bone-marrow-derived mesenchymal stem cells. In the present study, bromo-deoxyuridine (BrdU)-labeled ovine PDLSCs implanted into immunodeficient mice survived after 8 weeks post-transplantation and exhibited the capacity to form bone/cementum-like mineralized tissue, ligament structures similar to Sharpey's fibers with an associated vasculature. To evaluate self-renewal potential, PDLSCs were recovered from harvested primary transplants 8 weeks post-transplantation that exhibit an immunophenotype and multipotential capacity comparable to primary PDLSCs. The re-derived PDLSCs isolated from primary transplants were implanted into secondary ectopic xenogeneic transplants. Histomorphological analysis demonstrated that four out of six donor re-derived PDLSC populations displayed a capacity to survive and form fibrous ligament structures and mineralized tissues associated with vasculature in vivo, although at diminished levels in comparison to primary PDLSCs. Further, the capacity for long-term survival and the potential role of PDLSCs in dental tissue regeneration were determined using an ovine preclinical periodontal defect model. Autologous ex vivo-expanded PDLSCs that were prelabeled with BrdU were seeded onto Gelfoam(®) scaffolds and then transplanted into fenestration defects surgically created in the periodontium of the second premolars. Histological assessment at 8 weeks post-implantation revealed surviving BrdU-positive PDLSCs associated with regenerated periodontium-related tissues, including cementum and bone-like structures. This is the first report to demonstrate the self-renewal capacity of PDLSCs using serial xenogeneic transplants and provides evidence of the long-term survival and tissue contribution of autologous PDLSCs in a preclinical periodontal defect model.
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Affiliation(s)
- Danijela Menicanin
- 1 Colgate Australian Clinical Dental Research Centre, School of Dentistry, University of Adelaide , Adelaide, Australia
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173
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Steindorff MM, Lehl H, Winkel A, Stiesch M. Innovative approaches to regenerate teeth by tissue engineering. Arch Oral Biol 2014; 59:158-66. [DOI: 10.1016/j.archoralbio.2013.11.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Revised: 11/04/2013] [Accepted: 11/11/2013] [Indexed: 01/09/2023]
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174
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175
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Paknejad M, Eslaminejad MB, Ghaedi B, Rokn AR, Khorsand A, Etemad-Moghadam S, Alaeddini M, Dehghan MM, Moslemi N, Nowzari H. Isolation and Assessment of Mesenchymal Stem Cells Derived From Bone Marrow: Histologic and Histomorphometric Study in a Canine Periodontal Defect. J ORAL IMPLANTOL 2014; 41:284-91. [PMID: 24383495 DOI: 10.1563/aaid-joi-d-13-00220] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of the present study was to investigate an isolation procedure to culture mesenchymal stem cells derived from bone marrow and evaluate their potential in periodontal regeneration. Potential stem cells from bone marrow, aspirated from the iliac crest of nine mongrel canines 1 to 2 years of age, were cultivated. After the examination of surface epitopes of the isolated cells, the total RNA from osteogenic, adipogenic, and chondrogenic cell cultures were analyzed by reverse transcription polymerase chain reaction (RT-PCR) to confirm stem cell gene expressions. 2 × 10(7) mL of the stem cells were loaded on 0.2 mL of anorganic bovine bone mineral (ABBM) granules. In each animal, bilateral acute/chronic intrabony periodontal defects were created surgically and by placement of ligatures around the cervical aspect of the teeth. At week 5, after flap debridement, the bilateral defects were randomly assigned to 2 treatment groups: the control group received ABBM, and the test group received BMSCs-loaded ABBM. Eight weeks after transplantation, regenerative parameters were analyzed histologically and histometrically. The RNA expressions confirmed the cultivation of mesenchymal stem cell. More new cementum and periodontal ligament (PDL) were measured in the test group (cementum: 3.33 ± 0.94 vs 2.03 ± 1.30, P = 0.027; PDL: 2.69 ± 0.73 vs 1.53 ± 1.21, P = 0.026). New bone formation was similar in both groups (2.70 ± 0.86 vs 1.99 ± 1.31; P = 0.193). Mesenchymal stem cells derived from bone marrow should be considered a promising technique for use in patients with periodontal attachment loss and merits further investigations.
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Affiliation(s)
- Mojgan Paknejad
- 1 Dental Research Center, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Baharak Ghaedi
- 3 Department of Periodontics, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Amir-Reza Rokn
- 4 Dental Implant Research Center, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Afshin Khorsand
- 5 Department of Periodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahroo Etemad-Moghadam
- 1 Dental Research Center, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojgan Alaeddini
- 1 Dental Research Center, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mehdi Dehghan
- 6 Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Neda Moslemi
- 5 Department of Periodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.,7 Laser Research Center of Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Hessam Nowzari
- 8 Taipei Academy of Reconstructive Dentistry, Research Expert, the Italian Ministry of Education and Research
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176
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Ozasa M, Sawada K, Iwayama T, Yamamoto S, Morimoto C, Okura H, Matsuyama A, Komoda H, Lee CM, Sawa Y, Kitamura M, Hashikawa T, Takedachi M, Murakami S. Periodontal tissue regeneration by transplantation of adipose tissue-derived multi-lineage progenitor cells. Inflamm Regen 2014. [DOI: 10.2492/inflammregen.34.109] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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177
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The influence of cellular source on periodontal regeneration using calcium phosphate coated polycaprolactone scaffold supported cell sheets. Biomaterials 2014; 35:113-22. [DOI: 10.1016/j.biomaterials.2013.09.074] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 09/23/2013] [Indexed: 11/23/2022]
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178
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NOTCH1 signaling regulates the BMP2/DLX-3 directed osteogenic differentiation of dental follicle cells. Biochem Biophys Res Commun 2013; 443:500-4. [PMID: 24321094 DOI: 10.1016/j.bbrc.2013.11.120] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 11/28/2013] [Indexed: 01/09/2023]
Abstract
Dental follicle cells (DFCs) are dental stem/progenitor cells and the genuine precursors of alveolar osteoblasts and dental cementoblasts. A previous study showed that the transcription factor DLX3 (distal less homeobox 3) supports the osteogenic differentiation in DFCs via a positive feedback loop with the bone morghogenetic protein (BMP) 2. Until today, however, the control of this BMP2/DLX3 pathway by additional signaling pathways remains elusive. Previous studies also suggested that the NOTCH signaling pathway plays a role in the osteogenic differentiation of DFCs. In this study we showed that DLX3 overexpression and the initiation of the osteogenic differentiation by BMP2 or dexamethasone induced the NOTCH signaling pathway in DFCs. However, the induction of NOTCH-signaling impaired not only the osteogenic differentiation (ALP activity and mineralized nodules) but also the expression of the transcription factor DLX3 and the activation of the BMP-signaling pathway. So, NOTCH signaling plays a regulatory role for the osteogenic differentiation of DFCs. In conclusion, results of our study suggest that the NOTCH-signaling pathway, which is activated during the osteogenic differentiation of DFCs, regulates the BMP2/DLX3 directed differentiation of DFCs via a negative feed-back loop.
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179
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Gao LN, An Y, Lei M, Li B, Yang H, Lu H, Chen FM, Jin Y. The effect of the coumarin-like derivative osthole on the osteogenic properties of human periodontal ligament and jaw bone marrow mesenchymal stem cell sheets. Biomaterials 2013; 34:9937-51. [DOI: 10.1016/j.biomaterials.2013.09.017] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Accepted: 09/04/2013] [Indexed: 12/29/2022]
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180
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What and where are the stem cells for Dentistry? ACTA ACUST UNITED AC 2013; 34:13-8. [DOI: 10.1016/j.sdj.2013.11.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 11/02/2013] [Accepted: 11/08/2013] [Indexed: 01/09/2023]
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181
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Osman A, Gnanasegaran N, Govindasamy V, Kathivaloo P, Wen AS, Musa S, Abu Kasim NH. Basal expression of growth-factor-associated genes in periodontal ligament stem cells reveals multiple distinctive pathways. Int Endod J 2013; 47:639-51. [DOI: 10.1111/iej.12200] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 10/01/2013] [Indexed: 01/08/2023]
Affiliation(s)
- A. Osman
- Department of Children's Dentistry and Orthodontics; Faculty of Dentistry; University of Malaya; Kuala Lumpur Malaysia
| | - N. Gnanasegaran
- Department of Conservative Dentistry; Faculty of Dentistry; University of Malaya; Kuala Lumpur Malaysia
| | - V. Govindasamy
- Hygieia Innovation Sdn. Bhd; Lot 1G-2G, Lanai Complex No.2; Persiaran Seri Perdana, Precinct 10; Federal Territory of Putrajaya; Putrajaya Malaysia
| | - P. Kathivaloo
- Hygieia Innovation Sdn. Bhd; Lot 1G-2G, Lanai Complex No.2; Persiaran Seri Perdana, Precinct 10; Federal Territory of Putrajaya; Putrajaya Malaysia
| | - A. S. Wen
- Department of Conservative Dentistry; Faculty of Dentistry; University of Malaya; Kuala Lumpur Malaysia
| | - S. Musa
- Department of Children's Dentistry and Orthodontics; Faculty of Dentistry; University of Malaya; Kuala Lumpur Malaysia
| | - N. H. Abu Kasim
- Department of Conservative Dentistry; Faculty of Dentistry; University of Malaya; Kuala Lumpur Malaysia
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182
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Trofin EA, Monsarrat P, Kémoun P. Cell therapy of periodontium: from animal to human? Front Physiol 2013; 4:325. [PMID: 24298258 PMCID: PMC3828527 DOI: 10.3389/fphys.2013.00325] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 10/19/2013] [Indexed: 12/30/2022] Open
Abstract
Periodontitis is a chronic inflammatory disease affecting the soft and hard tissues supporting the teeth, which often leads to tooth loss. Its significant impact on the patient's general health and quality of life point to a need for more effective management of this condition. Existing treatments include scaling/root planning and surgical approaches but their overall effects are relatively modest and restricted in application. The goal of regenerative therapy of periodontal defects is to enhance endogenous progenitors and thus promote optimal wound healing. Considering that the host or tissue might be defective in the periodontitis context, it has been proposed that grafting exogenous stem cells would produce new tissues and create a suitable microenvironment for tissue regeneration. Thus, cell therapy of periodontium has been assessed in many animal models and promising results have been reported. However, the methodological diversity of these studies makes the conversion to clinical practice difficult. The aim of this review is to highlight the primary requirements to be satisfied before the leap to clinical trials can be made. We therefore review cell therapy applications for periodontal regeneration in animal models and the concerns to be addressed before undertaking human experiments.
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Affiliation(s)
- Elena A Trofin
- Department of Biology, Toulouse Faculty of Dentistry - Paul Sabatier University, Toulouse University Hospital - CHU de Toulouse Toulouse, France ; Department of Pathology, Faculty of Medicine and Odontology, University of Valencia Valencia, Spain
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183
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Zhao BJ, Liu YH. Simvastatin induces the osteogenic differentiation of human periodontal ligament stem cells. Fundam Clin Pharmacol 2013; 28:583-92. [DOI: 10.1111/fcp.12050] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 08/20/2013] [Accepted: 09/13/2013] [Indexed: 12/26/2022]
Affiliation(s)
- Bing-jiao Zhao
- Department of Orthodontics; School of Stomatology; Tongji University; 399 YanChangZhong Road Shanghai 200072 China
- Department of Orthodontics; Shanghai Stomatological Disease Center; 1258 FuXingZhong Road Shanghai 200002 China
| | - Yue-hua Liu
- Department of Orthodontics; School of Stomatology; Tongji University; 399 YanChangZhong Road Shanghai 200072 China
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184
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Mrozik KM, Wada N, Marino V, Richter W, Shi S, Wheeler DL, Gronthos S, Bartold PM. Regeneration of periodontal tissues using allogeneic periodontal ligament stem cells in an ovine model. Regen Med 2013; 8:711-23. [DOI: 10.2217/rme.13.66] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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185
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Iwasaki K, Komaki M, Yokoyama N, Tanaka Y, Taki A, Kimura Y, Takeda M, Oda S, Izumi Y, Morita I. Periodontal Ligament Stem Cells Possess the Characteristics of Pericytes. J Periodontol 2013; 84:1425-33. [DOI: 10.1902/jop.2012.120547] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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186
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Han J, Menicanin D, Gronthos S, Bartold PM. Stem cells, tissue engineering and periodontal regeneration. Aust Dent J 2013; 59 Suppl 1:117-30. [PMID: 24111843 DOI: 10.1111/adj.12100] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The aim of this review is to discuss the clinical utility of stem cells in periodontal regeneration by reviewing relevant literature that assesses the periodontal-regenerative potential of stem cells. We consider and describe the main stem cell populations that have been utilized with regard to periodontal regeneration, including bone marrow-derived mesenchymal stem cells and the main dental-derived mesenchymal stem cell populations: periodontal ligament stem cells, dental pulp stem cells, stem cells from human exfoliated deciduous teeth, stem cells from apical papilla and dental follicle precursor cells. Research into the use of stem cells for tissue regeneration has the potential to significantly influence periodontal treatment strategies in the future.
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Affiliation(s)
- J Han
- Colgate Australian Clinical Dental Research Centre, School of Dentistry, The University of Adelaide, South Australia
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187
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Yang H, Gao LN, An Y, Hu CH, Jin F, Zhou J, Jin Y, Chen FM. Comparison of mesenchymal stem cells derived from gingival tissue and periodontal ligament in different incubation conditions. Biomaterials 2013; 34:7033-47. [DOI: 10.1016/j.biomaterials.2013.05.025] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Accepted: 05/16/2013] [Indexed: 12/25/2022]
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188
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Takedachi M, Sawada K, Yamamoto S, Ozasa M, Shimabukuro Y, Kitamura M, Murakami S. Periodontal tissue regeneration by transplantation of adipose tissue-derived stem cells. J Oral Biosci 2013. [DOI: 10.1016/j.job.2013.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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189
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Iwata T, Washio K, Yoshida T, Ishikawa I, Ando T, Yamato M, Okano T. Cell sheet engineering and its application for periodontal regeneration. J Tissue Eng Regen Med 2013; 9:343-56. [DOI: 10.1002/term.1785] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 05/01/2013] [Accepted: 05/06/2013] [Indexed: 01/01/2023]
Affiliation(s)
- Takanori Iwata
- Institute of Advanced Biomedical Engineering and Science; Tokyo Women's Medical University; Shinjuku-ku Tokyo Japan
- Department of Oral and Maxillofacial Surgery; Tokyo Women's Medical University; Shinjuku-ku Tokyo Japan
| | - Kaoru Washio
- Institute of Advanced Biomedical Engineering and Science; Tokyo Women's Medical University; Shinjuku-ku Tokyo Japan
| | - Toshiyuki Yoshida
- Institute of Advanced Biomedical Engineering and Science; Tokyo Women's Medical University; Shinjuku-ku Tokyo Japan
| | - Isao Ishikawa
- Institute of Advanced Biomedical Engineering and Science; Tokyo Women's Medical University; Shinjuku-ku Tokyo Japan
| | - Tomohiro Ando
- Department of Oral and Maxillofacial Surgery; Tokyo Women's Medical University; Shinjuku-ku Tokyo Japan
| | - Masayuki Yamato
- Institute of Advanced Biomedical Engineering and Science; Tokyo Women's Medical University; Shinjuku-ku Tokyo Japan
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science; Tokyo Women's Medical University; Shinjuku-ku Tokyo Japan
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190
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Han J, Menicanin D, Marino V, Ge S, Mrozik K, Gronthos S, Bartold PM. Assessment of the regenerative potential of allogeneic periodontal ligament stem cells in a rodent periodontal defect model. J Periodontal Res 2013; 49:333-45. [DOI: 10.1111/jre.12111] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2013] [Indexed: 12/21/2022]
Affiliation(s)
- J. Han
- Colgate Australian Clinical Dental Research Centre; School of Dentistry; University of Adelaide; Adelaide SA Australia
| | - D. Menicanin
- Colgate Australian Clinical Dental Research Centre; School of Dentistry; University of Adelaide; Adelaide SA Australia
| | - V. Marino
- Colgate Australian Clinical Dental Research Centre; School of Dentistry; University of Adelaide; Adelaide SA Australia
| | - S. Ge
- Department of Periodontology; School of Stomatology; Shandong University; Jinan China
| | - K. Mrozik
- Colgate Australian Clinical Dental Research Centre; School of Dentistry; University of Adelaide; Adelaide SA Australia
| | - S. Gronthos
- Mesenchymal Stem Cell Laboratory; School of Medical Sciences; University of Adelaide; Adelaide SA Australia
| | - P. M. Bartold
- Colgate Australian Clinical Dental Research Centre; School of Dentistry; University of Adelaide; Adelaide SA Australia
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191
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Guo S, Guo W, Ding Y, Gong J, Zou Q, Xie D, Chen Y, Wu Y, Tian W. Comparative Study of Human Dental Follicle Cell Sheets and Periodontal Ligament Cell Sheets for Periodontal Tissue Regeneration. Cell Transplant 2013; 22:1061-73. [PMID: 23007138 DOI: 10.3727/096368912x656036] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Periodontal ligament cell (PDLC) sheets have been shown to contribute to periodontal tissue regeneration. Dental follicle cells (DFCs), acknowledged as the precursor cells of PDLCs, have demonstrated stemness, embryonic features, heterogeneity, and pluripotency. Therefore, we hypothesized that DFC sheets might be more effective and suitable for periodontal tissue regeneration than PDLC sheets. In this study, we compared the biological characteristics of DFC sheets and PDLC sheets in vitro. To investigate the potential for periodontal tissue regeneration in vivo, complexes composed of two types of cell sheets combined with dentin matrix were implanted subcutaneously into nude mice for 6 weeks. Our results showed that, when forming cell sheets, DFCs secreted richer extracellular matrix than PDLCs. And compared to DFCs, DFC sheets expressed high levels of calcification-related genes, including alkaline phosphatase ( alp), bone sialoprotein ( bsp), osteopontin ( opn), runt-related transcription factor ( runx2), as well as the periodontal ligament-specific genes collagen III ( col III) and periostin, while the gene expression of bsp, osteocalcin ( ocn), and opn were greatly increased in PDLC sheets, when compared to PDLCs. col I expression did not change significantly. However, cementum protein 23 ( cp-23) expression increased several fold in PDLC sheets compared to PDLCs but decreased in DFC sheets compared to DFCs. DFC and PDLC sheets were both positive for Collagen I (Col I), cementum attachment protein (CAP), ALP, BSP, OCN, and OPN protein expression, and Col I, ALP, BSP, and OPN expression were increased after cell sheets were formed. Furthermore, the levels of laminin and fibronectin were higher in DFCs and DFC sheets than that of PDLCs and PDLC sheets, respectively. In vivo, DFC and PDLC sheets could both regenerate periodontal tissue-like structures, but DFC sheets demonstrated stronger periodontal regeneration potential than PDLC sheets. Therefore, DFC sheets derived from discarded dental follicle tissue after tooth extraction may be more advantageous for clinical periodontal tissue regeneration in the future.
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Affiliation(s)
- Shujuan Guo
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China
- Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Weihua Guo
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China
| | - Yi Ding
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China
- Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Jian Gong
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China
- Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Qing Zou
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China
| | - Dan Xie
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China
| | - Yali Chen
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China
- Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Yafei Wu
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China
- Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Weidong Tian
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, Sichuan, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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192
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Yang JR, Hsu CW, Liao SC, Lin YT, Chen LR, Yuan K. Transplantation of embryonic stem cells improves the regeneration of periodontal furcation defects in a porcine model. J Clin Periodontol 2013; 40:364-71. [DOI: 10.1111/jcpe.12069] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 03/05/2012] [Accepted: 01/09/2013] [Indexed: 12/31/2022]
Affiliation(s)
- Jenn-Rong Yang
- Division of Physiology; Livestock Research Institute; Council of Agriculture Executive Yuan; Tainan Taiwan
| | - Chia-Wen Hsu
- Dental Department; Tainan Municipal Hospital; Tainan Taiwan
| | - Shih-Chung Liao
- Department of Oral Medicine; National Cheng Kung University Hospital; Tainan Taiwan
| | - Yu-Ting Lin
- Division of Physiology; Livestock Research Institute; Council of Agriculture Executive Yuan; Tainan Taiwan
| | - Lih-Ren Chen
- Division of Physiology; Livestock Research Institute; Council of Agriculture Executive Yuan; Tainan Taiwan
| | - Kuo Yuan
- Department of Oral Medicine; National Cheng Kung University Hospital; Tainan Taiwan
- Institute of Oral Medicine; College of Medicine; National Cheng Kung University; Tainan Taiwan
- School of Dentistry; College of Oral Medicine; Taipei Medical University; Taipei Taiwan
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193
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Abstract
Scientists have recently focused their attention on adult stem cells as new and more effective treatments for different diseases and disabilities. In fact, it is known that stem cells are capable of renewing themselves and that they can generate multiple cell types. Today, there is new evidence that stem cells are present in far more tissues and organs than once thought and that these cells are capable of developing into more kinds of cells than previously imagined. In this chapter, we focus the attention on teeth as source of stem cells. In particular, we describe the characteristic of the different types of dental stem cells and their use in tissue engineering.
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194
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Hynes K, Menicanin D, Gronthos S, Bartold PM. Clinical utility of stem cells for periodontal regeneration. Periodontol 2000 2012; 59:203-27. [PMID: 22507067 DOI: 10.1111/j.1600-0757.2012.00443.x] [Citation(s) in RCA: 169] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The aim of this review is to discuss the clinical utility of stem cells in periodontal regeneration by reviewing relevant literature that assesses the periodontal-regenerative potential of stem cells. We considered and described the main stem cell populations that have been utilized with regard to periodontal regeneration, including bone marrow-derived mesenchymal stem cells and the main dental-derived mesenchymal stem cell populations: periodontal ligament stem cells, dental pulp stem cells, stem cells from human exfoliated deciduous teeth, stem cells from apical papilla and dental follicle precursor cells. Research into the use of stem cells for tissue regeneration has the potential to significantly influence periodontal treatment strategies in the future.
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195
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Lu H, Xie C, Zhao YM, Chen FM. Translational research and therapeutic applications of stem cell transplantation in periodontal regenerative medicine. Cell Transplant 2012; 22:205-29. [PMID: 23031442 DOI: 10.3727/096368912x656171] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Stem cells have received a great deal of interest from the research community as potential therapeutic "tools" for a variety of chronic debilitating diseases that lack clinically effective therapies. Stem cells are also of interest for the regeneration of tooth-supporting tissues that have been lost to periodontal disease. Indeed, substantial data have demonstrated that the exogenous administration of stem cells or their derivatives in preclinical animal models of periodontal defects can restore damaged tissues to their original form and function. As we discuss here, however, considerable hurdles must be overcome before these findings can be responsibly translated to novel clinical therapies. Generally, the application of stem cells for periodontal therapy in clinics will not be realized until the best cell(s) to use, the optimal dose, and an effective mode of administration are identified. In particular, we need to better understand the mechanisms of action of stem cells after transplantation in the periodontium and to learn how to preciously control stem cell fates in the pathological environment around a tooth. From a translational perspective, we outline the challenges that may vary across preclinical models for the evaluation of stem cell therapy in situations that require periodontal reconstruction and the safety issues that are related to clinical applications of human stem cells. Although clinical trials that use autologous periodontal ligament stem cells have been approved and have already been initiated, proper consideration of the technical, safety, and regulatory concerns may facilitate, rather than inhibit, the clinical translation of new therapies.
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Affiliation(s)
- Hong Lu
- Department of Periodontology and Oral Medicine, School of Stomatology, Fourth Military Medical University, Xi'an 710032, People's Republic of China
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196
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The effect of aging on the pluripotential capacity and regenerative potential of human periodontal ligament stem cells. Biomaterials 2012; 33:6974-86. [DOI: 10.1016/j.biomaterials.2012.06.032] [Citation(s) in RCA: 128] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2012] [Accepted: 06/17/2012] [Indexed: 12/14/2022]
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197
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Wang WJ, Zhao YM, Lin BC, Yang J, Ge LH. Identification of multipotent stem cells from adult dog periodontal ligament. Eur J Oral Sci 2012; 120:303-10. [PMID: 22813220 DOI: 10.1111/j.1600-0722.2012.00975.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Wen-Jun Wang
- Department of Pediatric Dentistry; Peking University School and Hospital of Stomatology; Beijing China
| | - Yu-Ming Zhao
- Department of Pediatric Dentistry; Peking University School and Hospital of Stomatology; Beijing China
| | - Bi-Chen Lin
- Department of Pediatric Dentistry; Peking University School and Hospital of Stomatology; Beijing China
| | - Jie Yang
- Department of Pediatric Dentistry; Peking University School and Hospital of Stomatology; Beijing China
| | - Li-Hong Ge
- Department of Pediatric Dentistry; Peking University School and Hospital of Stomatology; Beijing China
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198
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Song JS, Kim SO, Kim SH, Choi HJ, Son HK, Jung HS, Kim CS, Lee JH. In vitro and in vivo characteristics of stem cells derived from the periodontal ligament of human deciduous and permanent teeth. Tissue Eng Part A 2012; 18:2040-51. [PMID: 22571499 DOI: 10.1089/ten.tea.2011.0318] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
In many studies, adult stem cells have been found in human periodontal ligament (PDL), but in most cases they were found in the permanent teeth. The aim of the present study was to characterize stem cells from the PDL of deciduous teeth (dPDLSCs) and compare them with those from the PDL of permanent teeth (pPDLSCs). Stem cell markers were examined by a flow cytometric analysis. The results of in vitro differentiation into adipogenic and osteogenic lineages were analyzed by histochemical staining and quantitative reverse transcription-polymerase chain reaction (RT-PCR). The results of in vivo transplantation were analyzed by histological staining, immunohistochemical staining, and quantitative RT-PCR. There were no significant differences in the proliferation rate, cell cycle distribution, expressions of stem cell markers such as Stro-1 and CD146, or in vitro differentiation. The pPDLSC transplants made more typical cementum/PDL-like tissues and expressed more cementum/PDL-related genes (CP23 and collagen XII) than did the dPDLSC transplants. Together, these results suggest that pPDLSCs are better candidates for use in reconstructing periodontium.
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Affiliation(s)
- Je Seon Song
- Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Yonsei University, Seoul, Korea
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199
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Abstract
Periodontal and endodontic diseases are inflammatory responses leading to periodontal and pulpal tissue loss. Regenerative therapies aim to restore the lost structures to vitality and function. Various materials and treatments methods have been used such as bone grafts, guided tissue regeneration, enamel matrix derivatives, growth and differentiation factors, and stem cells. Although the current materials and methods demonstrated adequate clinical results, true and complete biological tissue regeneration is not yet attainable. The current article reviews chronologically the materials and methods used in periodontal and endodontic regeneration highlighting their clinical success and shortcomings, and discussing future directions in regenerative therapy.
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200
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Abstract
The search for more accessible mesenchymal stem cells than those found in bone marrow has propelled interest in dental tissues. Human dental stem/progenitor cells (collectively termed dental stem cells [DSCs]) that have been isolated and characterized include dental pulp stem cells, stem cells from exfoliated deciduous teeth, stem cells from apical papilla, periodontal ligament stem cells, and dental follicle progenitor cells. Common characteristics of these cell populations are the capacity for self-renewal and the ability to differentiate into multiple lineages. In vitro and animal studies have shown that DSCs can differentiate into osseous, odontogenic, adipose, endothelial, and neural-like tissues.
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Affiliation(s)
- Christine M Sedgley
- Department of Endodontology, School of Dentistry, Oregon Health and Science University, 611 Southwest Campus Drive, Portland, OR 97239, USA.
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