1
|
Eldeeb D, Ikeda Y, Hojo H, Ohba S. Unraveling the hidden complexity: Exploring dental tissues through single-cell transcriptional profiling. Regen Ther 2024; 27:218-229. [PMID: 38596822 PMCID: PMC11002530 DOI: 10.1016/j.reth.2024.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/21/2024] [Accepted: 03/24/2024] [Indexed: 04/11/2024] Open
Abstract
Understanding the composition and function of cells constituting tissues and organs is vital for unraveling biological processes. Single-cell analysis has allowed us to move beyond traditional methods of categorizing cell types. This innovative technology allows the transcriptional and epigenetic profiling of numerous individual cells, leading to significant insights into the development, homeostasis, and pathology of various organs and tissues in both animal models and human samples. In this review, we delve into the outcomes of major investigations using single-cell transcriptomics to decipher the cellular composition of mammalian teeth and periodontal tissues. The recent single-cell transcriptome-based studies have traced in detail the dental epithelium-ameloblast lineage and dental mesenchyme lineages in the mouse incisors and the tooth germ of both mice and humans; unraveled the microenvironment, the identity of niche cells, and cellular intricacies in the dental pulp; shed light on the molecular mechanisms orchestrating root formation; and characterized cellular dynamics of the periodontal ligament. Additionally, cellular components in dental pulps were compared between healthy and carious teeth at a single-cell level. Each section of this review contributes to a comprehensive understanding of tooth biology, offering valuable insights into developmental processes, niche cell identification, and the molecular secrets of the dental environment.
Collapse
Affiliation(s)
- Dahlia Eldeeb
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Japan
- Department of Physiology, Division of Biomedical Sciences, Nihon University School of Medicine, Japan
- Department of Oral Biology, Faculty of Dentistry, Cairo University, Egypt
| | - Yuki Ikeda
- Department of Tissue and Developmental Biology, Graduate School of Dentistry, Osaka University, Japan
| | - Hironori Hojo
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Japan
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Japan
| | - Shinsuke Ohba
- Department of Tissue and Developmental Biology, Graduate School of Dentistry, Osaka University, Japan
| |
Collapse
|
2
|
Mello DB, Mesquita FCP, Silva dos Santos D, Asensi KD, Dias ML, Campos de Carvalho AC, Goldenberg RCDS, Kasai-Brunswick TH. Mesenchymal Stromal Cell-Based Products: Challenges and Clinical Therapeutic Options. Int J Mol Sci 2024; 25:6063. [PMID: 38892249 PMCID: PMC11173248 DOI: 10.3390/ijms25116063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 05/24/2024] [Accepted: 05/26/2024] [Indexed: 06/21/2024] Open
Abstract
Mesenchymal stromal cell (MSC)-based advanced therapy medicinal products (ATMPs) are being tried in a vast range of clinical applications. These cells can be isolated from different donor tissues by using several methods, or they can even be derived from induced pluripotent stem cells or embryonic stem cells. However, ATMP heterogeneity may impact product identity and potency, and, consequently, clinical trial outcomes. In this review, we discuss these topics and the need to establish minimal criteria regarding the manufacturing of MSCs so that these innovative therapeutics may be better positioned to contribute to the advancement of regenerative medicine.
Collapse
Affiliation(s)
- Debora B. Mello
- National Center of Structural Biology and Bioimaging, CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (D.B.M.); (A.C.C.d.C.)
| | | | - Danúbia Silva dos Santos
- Center of Cellular Technology, National Institute of Cardiology, INC, Rio de Janeiro 22240-002, Brazil;
- National Institute of Science and Technology for Regenerative Medicine-REGENERA, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (K.D.A.); (R.C.d.S.G.)
| | - Karina Dutra Asensi
- National Institute of Science and Technology for Regenerative Medicine-REGENERA, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (K.D.A.); (R.C.d.S.G.)
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil;
| | - Marlon Lemos Dias
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil;
| | - Antonio Carlos Campos de Carvalho
- National Center of Structural Biology and Bioimaging, CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (D.B.M.); (A.C.C.d.C.)
- National Institute of Science and Technology for Regenerative Medicine-REGENERA, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (K.D.A.); (R.C.d.S.G.)
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil;
| | - Regina Coeli dos Santos Goldenberg
- National Institute of Science and Technology for Regenerative Medicine-REGENERA, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (K.D.A.); (R.C.d.S.G.)
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil;
| | - Tais Hanae Kasai-Brunswick
- National Center of Structural Biology and Bioimaging, CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (D.B.M.); (A.C.C.d.C.)
- National Institute of Science and Technology for Regenerative Medicine-REGENERA, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (K.D.A.); (R.C.d.S.G.)
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil;
| |
Collapse
|
3
|
Duncan HF, Kobayashi Y, Kearney M, Shimizu E. Epigenetic therapeutics in dental pulp treatment: Hopes, challenges and concerns for the development of next-generation biomaterials. Bioact Mater 2023; 27:574-593. [PMID: 37213443 PMCID: PMC10199232 DOI: 10.1016/j.bioactmat.2023.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/11/2023] [Accepted: 04/11/2023] [Indexed: 05/23/2023] Open
Abstract
This opinion-led review paper highlights the need for novel translational research in vital-pulp-treatment (VPT), but also discusses the challenges in translating evidence to clinics. Traditional dentistry is expensive, invasive and relies on an outmoded mechanical understanding of dental disease, rather than employing a biological perspective that harnesses cell activity and the regenerative-capacity. Recent research has focussed on developing minimally-invasive biologically-based 'fillings' that preserve the dental pulp; research that is shifting the paradigm from expensive high-technology dentistry, with high failure rates, to smart restorations targeted at biological processes. Current VPTs promote repair by recruiting odontoblast-like cells in a material-dependent process. Therefore, exciting opportunities exist for development of next-generation biomaterials targeted at regenerative processes in the dentin-pulp complex. This article analyses recent research using pharmacological-inhibitors to therapeutically-target histone-deacetylase (HDAC) enzymes in dental-pulp-cells (DPCs) that stimulate pro-regenerative effects with limited loss of viability. Consequently, HDAC-inhibitors have the potential to enhance biomaterial-driven tissue responses at low concentration by influencing the cellular processes with minimal side-effects, providing an opportunity to develop a topically-placed, inexpensive bio-inductive pulp-capping material. Despite positive results, clinical translation of these innovations requires enterprise to counteract regulatory obstacles, dental-industry priorities and to develop strong academic/industry partnerships. The aim of this opinion-led review paper is to discuss the potential role of therapeutically-targeting epigenetic modifications as part of a topical VPT strategy in the treatment of the damaged dental pulp, while considering the next steps, material considerations, challenges and future for the clinical development of epigenetic therapeutics or other 'smart' restorations in VPT.
Collapse
Affiliation(s)
- Henry F. Duncan
- Division of Restorative Dentistry & Periodontology, Dublin Dental University Hospital, Trinity College Dublin, University of Dublin, Lincoln Place, Dublin, Ireland
| | - Yoshifumi Kobayashi
- Department of Oral Biology, Rutgers School of Dental Medicine, Newark, NJ, USA
| | - Michaela Kearney
- Division of Restorative Dentistry & Periodontology, Dublin Dental University Hospital, Trinity College Dublin, University of Dublin, Lincoln Place, Dublin, Ireland
| | - Emi Shimizu
- Department of Oral Biology, Rutgers School of Dental Medicine, Newark, NJ, USA
| |
Collapse
|
4
|
Sedek EM, Kamoun EA, El-Deeb NM, Abdelkader S, Fahmy AE, Nouh SR, Khalil NM. Photocrosslinkable gelatin-treated dentin matrix hydrogel as a novel pulp capping agent for dentin regeneration: I. synthesis, characterizations and grafting optimization. BMC Oral Health 2023; 23:536. [PMID: 37542230 PMCID: PMC10401831 DOI: 10.1186/s12903-023-03236-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 07/18/2023] [Indexed: 08/06/2023] Open
Abstract
BACKGROUND In recent years, treated dentin matrix (TDM) has been introduced as a bioactive hydrogel for dentin regeneration in DPC. However, no study has introduced TDM as a photocrosslinkable hydrogel with a natural photoinitiating system. Therefore, the present study aimed to explore the synthesis, characterizations and grafting optimization of injectable gelatin- glycidyl methacrylate (GMA)/TDM hydrogels as a novel photocrosslinkable pulp capping agent for dentin regeneration. METHODS G-GMA/TDM hydrogel was photocrosslinked using a new two-component photoinitiating system composed of riboflavin as a photoinitiator under visible light and glycine as a first time coinitiator with riboflavin. The grafting reaction conditions of G-GMA/TDM e.g. GMA concentration and reaction time were optimized. The kinetic parameters e.g. grafting efficiency (GE) and grafting percentage (GP%) were calculated to optimize the grafting reaction, while yield (%) was determined to monitor the formation of the hydrogel. Moreover, G-GMA/TDM hydrogels were characterized by swelling ratio, degradation degree, and cytotoxicity. The instrumental characterizations e.g. FTIR, 1H-NMR, SEM and TGA, were investigated for verifying the grafting reaction. Statistical analysis was performed using F test (ANOVA) and Post Hoc Test (P = 0.05). RESULTS The grafting reaction dramatically increased with an increase of both GMA concentration and reaction time. It was realized that the swelling degree and degradation rate of G-GMA/TDM hydrogels were significantly reduced by increasing the GMA concentration and prolonging the reaction time. When compared to the safe low and moderate GMA content hydrogels (0.048, 0.097 M) and shorter reaction times (6, 12, 24 h), G-GMA/TDM with high GMA contents (0.195, 0.391 M) and a prolonged reaction time (48 h) demonstrated cytotoxic effects against cells using the MTT assay. Also, the morphological surface of G-GMA/TDM freeze-dried gels was found more compacted, smooth and uniform due to the grafting process. Significant thermal stability was noticed due to the grafting reaction of G-GMA/TDM throughout the TGA results. CONCLUSIONS G-GMA/TDM composite hydrogel formed by the riboflavin/glycine photoinitiating system is a potential bioactive and biocompatible system for in-situ crosslinking the activated-light pulp capping agent for dentin regeneration.
Collapse
Affiliation(s)
- Eman M Sedek
- Dental Biomaterials Department, Faculty of Dentistry, Alexandria University, Champolion St., Azarita, Alexandria, Egypt.
| | - Elbadawy A Kamoun
- Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg Al-Arab City, Alexandria, 21934, Egypt
- Nanotechnology Research Center (NTRC), The British University in Egypt, El-Shreouk City, Cairo, Egypt
| | - Nehal M El-Deeb
- Biopharmaceutical Products Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City, Alexandria, New Borg El-Arab City, Egypt
| | - Sally Abdelkader
- Dental Biomaterials Department, Faculty of Dentistry, Alexandria University, Champolion St., Azarita, Alexandria, Egypt
| | - Amal E Fahmy
- Dental Biomaterials Department, Faculty of Dentistry, Alexandria University, Champolion St., Azarita, Alexandria, Egypt
| | - Samir R Nouh
- Surgery Department, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Nesma Mohamed Khalil
- Oral Biology Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| |
Collapse
|
5
|
Treated Dentin Matrix in Tissue Regeneration: Recent Advances. Pharmaceutics 2022; 15:pharmaceutics15010091. [PMID: 36678720 PMCID: PMC9861705 DOI: 10.3390/pharmaceutics15010091] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022] Open
Abstract
Tissue engineering is a new therapeutic strategy used to repair serious damage caused by trauma, a tumor or other major diseases, either for vital organs or tissues sited in the oral cavity. Scaffold materials are an indispensable part of this. As an extracellular-matrix-based bio-material, treated dentin matrixes have become promising tissue engineering scaffolds due to their unique natural structure, astonishing biological induction activity and benign bio-compatibility. Furthermore, it is important to note that besides its high bio-activity, a treated dentin matrix can also serve as a carrier and release controller for drug molecules and bio-active agents to contribute to tissue regeneration and immunomodulation processes. This paper describes the research advances of treated dentin matrixes in tissue regeneration from the aspects of its vital properties, biologically inductive abilities and application explorations. Furthermore, we present the concerning challenges of signaling mechanisms, source extension, individualized 3D printing and drug delivery system construction during our investigation into the treated dentin matrix. This paper is expected to provide a reference for further research on treated dentin matrixes in tissue regeneration and better promote the development of relevant disease treatment approaches.
Collapse
|
6
|
Dentin Particulate for Bone Regeneration: An In Vitro Study. Int J Mol Sci 2022; 23:ijms23169283. [PMID: 36012558 PMCID: PMC9408967 DOI: 10.3390/ijms23169283] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 08/01/2022] [Accepted: 08/03/2022] [Indexed: 11/23/2022] Open
Abstract
The aim of this in vitro study was to investigate the commitment and behavior of dental pulp stem cells (DPSCs) seeded onto two different grafting materials, human dentin particulate (DP) and deproteinized bovine bone matrix (BG), with those cultured in the absence of supplements. Gene expression analyses along with epigenetic and morphological tests were carried out to examine odontogenic and osteogenic differentiation and cell proliferation. Compressive testing of the grafting materials seeded with DPSCs was performed as well. DPSC differentiation into odontoblast-like cells was identified from the upregulation of odontogenic markers (DSPP and MSX) and osteogenic markers (RUNX2, alkaline phosphatase, osteonectin, osteocalcin, collagen type I, bmp2, smad5/8). Epigenetic tests confirmed the presence of miRNAs involved in odontogenic or osteogenic commitment of DPSCs cultured for up to 21 days on DP. Compressive strength values obtained from extracellular matrix (ECM) synthesized by DPSCs showed a trend of being higher when seeded onto DP than onto BG. High expression of VEGF factor, which is related to angiogenesis, and of dentin sialoprotein was observed only in the presence of DP. Morphological analyses confirmed the typical phenotype of adult odontoblasts. In conclusion, the odontogenic and osteogenic commitment of DPSCs and their respective functions can be achieved on DP, which enables exceptional dentin and bone regeneration.
Collapse
|
7
|
Fu Z, Zhuang Y, Cui J, Sheng R, Tomás H, Rodrigues J, Zhao B, Wang X, Lin K. Development and challenges of cells- and materials-based tooth regeneration. ENGINEERED REGENERATION 2022. [DOI: 10.1016/j.engreg.2022.04.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
|
8
|
Olaru M, Sachelarie L, Calin G. Hard Dental Tissues Regeneration-Approaches and Challenges. MATERIALS 2021; 14:ma14102558. [PMID: 34069265 PMCID: PMC8156070 DOI: 10.3390/ma14102558] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/10/2021] [Accepted: 05/13/2021] [Indexed: 12/13/2022]
Abstract
With the development of the modern concept of tissue engineering approach and the discovery of the potential of stem cells in dentistry, the regeneration of hard dental tissues has become a reality and a priority of modern dentistry. The present review reports the recent advances on stem-cell based regeneration strategies for hard dental tissues and analyze the feasibility of stem cells and of growth factors in scaffolds-based or scaffold-free approaches in inducing the regeneration of either the whole tooth or only of its component structures.
Collapse
Affiliation(s)
- Mihaela Olaru
- “Petru Poni” Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487 Iasi, Romania;
| | - Liliana Sachelarie
- Faculty of Medical Dentistry, “Apollonia” University of Iasi, 2 Muzicii Str., 700399 Iasi, Romania;
- Correspondence:
| | - Gabriela Calin
- Faculty of Medical Dentistry, “Apollonia” University of Iasi, 2 Muzicii Str., 700399 Iasi, Romania;
| |
Collapse
|
9
|
Louvrier A, Terranova L, Meyer C, Meyer F, Euvrard E, Kroemer M, Rolin G. Which experimental models and explorations to use in regenerative endodontics? A comprehensive review on standard practices. Mol Biol Rep 2021; 48:3799-3812. [PMID: 33761086 DOI: 10.1007/s11033-021-06299-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 03/18/2021] [Indexed: 01/09/2023]
Abstract
Since the discovery of dental pulp stem cells, a lot of teams have expressed an interest in dental pulp regeneration. Many approaches, experimental models and biological explorations have been developed, each including the use of stem cells and scaffolds with the final goal being clinical application in humans. In this review, the authors' objective was to compare the experimental models and strategies used for the development of biomaterials for tissue engineering of dental pulp with stem cells. Electronic queries were conducted on PubMed using the following terms: pulp regeneration, scaffold, stem cells, tissue engineering and biomaterial. The extracted data included the following information: the strategy envisaged, the type of stem cells, the experimental models, the exploration or analysis methods, the cytotoxicity or viability or proliferation cellular tests, the tests of scaffold antibacterial properties and take into account the vascularization of the regenerated dental pulp. From the 71 selected articles, 59% focused on the "cell-transplantation" strategy, 82% used in vitro experimentation, 58% in vivo animal models and only one described an in vivo in situ human clinical study. 87% used dental pulp stem cells. A majority of the studies reported histology (75%) and immunohistochemistry explorations (66%). 73% mentioned the use of cytotoxicity, proliferation or viability tests. 48% took vascularization into account but only 6% studied the antibacterial properties of the scaffolds. This article gives an overview of the methods used to regenerate dental pulp from stem cells and should help researchers create the best development strategies for research in this field.
Collapse
Affiliation(s)
- A Louvrier
- Chirurgie Maxillo-Faciale, stomatologie et odontologie hospitalière, CHU Besançon, 25000, Besançon, France.
- UMR1098, RIGHT Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, 25000, Besançon, France.
| | - L Terranova
- UMR_S 1121 Biomatériaux et Bioingénierie, Université de Strasbourg, INSERM, FMTS, Strasbourg, France
| | - C Meyer
- Chirurgie Maxillo-Faciale, stomatologie et odontologie hospitalière, CHU Besançon, 25000, Besançon, France
- Laboratoire Nano Médecine, Imagerie, Thérapeutique, Univ. Bourgogne Franche-Comté, EA 4662, 25000, Besançon, France
| | - F Meyer
- UMR_S 1121 Biomatériaux et Bioingénierie, Université de Strasbourg, INSERM, FMTS, Strasbourg, France
| | - E Euvrard
- Chirurgie Maxillo-Faciale, stomatologie et odontologie hospitalière, CHU Besançon, 25000, Besançon, France
- Laboratoire Nano Médecine, Imagerie, Thérapeutique, Univ. Bourgogne Franche-Comté, EA 4662, 25000, Besançon, France
| | - M Kroemer
- UMR1098, RIGHT Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, 25000, Besançon, France
- Pharmacie Centrale, CHU Besançon, 25000, Besançon, France
| | - G Rolin
- UMR1098, RIGHT Interactions Greffon-Hôte-Tumeur/Ingénierie Cellulaire et Génique, Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, 25000, Besançon, France
- INSERM CIC-1431, CHU Besançon, 25000, Besançon, France
| |
Collapse
|
10
|
Ahmed GM, Abouauf EA, AbuBakr N, Elarab AE, Fawzy El-Sayed K. Stem Cell-Based Tissue Engineering for Functional Enamel and Dentin/Pulp Complex: A Potential Alternative to the Restorative Therapies. Stem Cells 2021. [DOI: 10.1007/978-3-030-77052-5_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
11
|
Dental Tissue-Derived Human Mesenchymal Stem Cells and Their Potential in Therapeutic Application. Stem Cells Int 2020; 2020:8864572. [PMID: 32952572 PMCID: PMC7482010 DOI: 10.1155/2020/8864572] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 07/15/2020] [Indexed: 02/05/2023] Open
Abstract
Human mesenchymal stem cells (hMSCs) are multipotent cells, which exhibit plastic adherence, express specific cell surface marker spectrum, and have multi-lineage differentiation potential. These cells can be obtained from multiple tissues. Dental tissue-derived hMSCs (dental MSCs) possess the ability to give rise to mesodermal lineage (osteocytes, adipocytes, and chondrocytes), ectodermal lineage (neurocytes), and endodermal lineages (hepatocytes). Dental MSCs were first isolated from dental pulp of the extracted third molar and till now they have been purified from various dental tissues, including pulp tissue of permanent teeth and exfoliated deciduous teeth, apical papilla, periodontal ligament, gingiva, dental follicle, tooth germ, and alveolar bone. Dental MSCs are not only easily accessible but are also expandable in vitro with relative genomic stability for a long period of time. Moreover, dental MSCs have exhibited immunomodulatory properties by secreting cytokines. Easy accessibility, multi-lineage differentiation potential, and immunomodulatory effects make dental MSCs distinct from the other hMSCs and an effective tool in stem cell-based therapy. Several preclinical studies and clinical trials have been performed using dental MSCs in the treatment of multiple ailments, ranging from dental diseases to nondental diseases. The present review has summarized dental MSC sources, multi-lineage differentiation capacities, immunomodulatory features, its potential in the treatment of diseases, and its application in both preclinical studies and clinical trials. The regenerative therapeutic strategies in dental medicine have also been discussed.
Collapse
|
12
|
Tissue Engineering Approaches for Enamel, Dentin, and Pulp Regeneration: An Update. Stem Cells Int 2020; 2020:5734539. [PMID: 32184832 PMCID: PMC7060883 DOI: 10.1155/2020/5734539] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 01/07/2020] [Indexed: 12/12/2022] Open
Abstract
Stem/progenitor cells are undifferentiated cells characterized by their exclusive ability for self-renewal and multilineage differentiation potential. In recent years, researchers and investigations explored the prospect of employing stem/progenitor cell therapy in regenerative medicine, especially stem/progenitor cells originating from the oral tissues. In this context, the regeneration of the lost dental tissues including enamel, dentin, and the dental pulp are pivotal targets for stem/progenitor cell therapy. The present review elaborates on the different sources of stem/progenitor cells and their potential clinical applications to regenerate enamel, dentin, and the dental pulpal tissues.
Collapse
|
13
|
The role of stem cell therapy in regeneration of dentine-pulp complex: a systematic review. Prog Biomater 2018; 7:249-268. [PMID: 30267369 PMCID: PMC6304177 DOI: 10.1007/s40204-018-0100-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 09/12/2018] [Indexed: 12/16/2022] Open
Abstract
Infection of the dental pulp will result in inflammation and eventually tissue necrosis which is treated conventionally by pulpectomy and root canal treatment. Advances in regenerative medicine and tissue engineering along with the introduction of new sources of stem cells have led to the possibility of pulp tissue regeneration. This systematic review analyzes animal studies published since 2010 to determine the ability of stem cell therapy to regenerate the dentine-pulp complex (DPC) and the success of clinical protocols. In vitro and human clinical studies are excluded and only the experimental studies on animal models were included. Dental pulp stem cells constitute the most commonly used cell type. The majority of stem cells are incorporated into various types of scaffold and implanted into root canals. Some of the studies combine growth factors with stem cells in an attempt to improve the outcome. Studies of ectopic transplantation using small animal models are simple and non-systematic evaluation techniques. Stem cell concentrations have not been so far reported; therefore, the translational value of such animal studies remains questionable. Though all types of stem cells appear capable of regenerating a dentine-pulp complex, still several factors have been considered in selecting the cell type. Co-administrative factors are essential for inducing the systemic migration of stem cells, and their vascularization and differentiation into odontoblast-like cells. Scaffolds provide a biodegradable structure able to control the release of growth factors. To identify problems and reduce costs, novel strategies should be initially tested in subcutaneous or renal capsule implantation followed by root canal models to confirm results.
Collapse
|
14
|
Huynh NCN, Le SH, Doan VN, Ngo LTQ, Tran HLB. Simplified conditions for storing and cryopreservation of dental pulp stem cells. Arch Oral Biol 2017; 84:74-81. [PMID: 28957734 DOI: 10.1016/j.archoralbio.2017.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 09/05/2017] [Accepted: 09/05/2017] [Indexed: 01/09/2023]
Abstract
OBJECTIVES This study aimed to simplify the collection, isolation and cryopreservation procedure of human dental pulp stem cells (DPSCs) to ease the establishment of dental stem cell banking. DESIGN Extracted third molars were collected and stored either in growth medium or in gentamicin-saline (480μg/ml) for 6, 9 or 12h. DPSCs were isolated and subjected to cryopreservation by a controlled-rate or rapid freezing method in 5 or 10% DMSO. Flow cytometry and growth pattern of DPSCs before and after cryopreservation were conducted. RESULTS Rate of contamination by which the extracted teeth were stored in control and gentamicin-saline were 9.1% (N=33) and 2.3% (N=43), respectively. Successful cell isolation rate of teeth preserved in gentamicin-saline at 6h (92.9%) was comparable to those of growth media group (90.3%). At 9 and 12h, the rates dropped significantly to 75% and 54%, respectively. Cryopreservation by controlled-rate freezing either in 5 or 10% DMSO resulted in a significantly higher percentage of viable cells than by rapid freezing. Cells conserved by controlled-rate freezing in 5% DMSO showed a pattern of growth similar to control unfrozen cells; 10% DMSO significantly deteriorated the growth pattern of the cells. After thawing, DPSCs conserved by controlled-rate freezing still expressed stemness characteristics, although hematopoietic stem cell markers were slightly increased. CONCLUSION Gentamicin-saline was effective in preserving human teeth for DPSC isolation. Controlled-rate freezing in 5% DMSO gave the highest rate of cell viability. This study simplifies the storage conditions and proposes a simple method for cryopreservation of DPSCs.
Collapse
Affiliation(s)
- Nam Cong-Nhat Huynh
- Department of Dental Basic Sciences, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy, Ho Chi Minh City, Viet Nam
| | - Son Hoang Le
- Department of Dental Basic Sciences, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy, Ho Chi Minh City, Viet Nam
| | - Vu Nguyen Doan
- Department of Physiology and Animal Biotechnology, Laboratory of Tissue Engineering and Biomedical Materials, Faculty of Biology - Biotechnology, University of Science, Vietnam National University, Ho Chi Minh City, Viet Nam
| | - Lan Thi Quynh Ngo
- Department of Dental Basic Sciences, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy, Ho Chi Minh City, Viet Nam
| | - Ha Le Bao Tran
- Department of Physiology and Animal Biotechnology, Laboratory of Tissue Engineering and Biomedical Materials, Faculty of Biology - Biotechnology, University of Science, Vietnam National University, Ho Chi Minh City, Viet Nam.
| |
Collapse
|
15
|
Mehrvarzfar P, Abbott PV, Mashhadiabbas F, Vatanpour M, Tour Savadkouhi S. Clinical and histological responses of human dental pulp to MTA and combined MTA/treated dentin matrix in partial pulpotomy. AUST ENDOD J 2017; 44:46-53. [PMID: 28833942 DOI: 10.1111/aej.12217] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2017] [Indexed: 01/05/2023]
Abstract
The aim of this study was to compare the responses of mineral trioxide aggregate (MTA) and combined MTA/treated dentin matrix (TDM) as direct pulp capping material. In this clinical trial study, 33 intact third molars in 11 healthy volunteers (three molars in each) were included. Partial pulpotomies were performed in a split mouth manner in two of the third molars in each patient randomly and the third tooth had used as TDM source. The coronal dentin was chopped to dentine chips and transformed to TDM using different concentrations of ethylene diamine tetraacetic acid (EDTA) solution. Pulps were directly capped by MTA alone or using a combination layering of MTA/TDM. Following 6-week clinical and radiological evaluations, each tooth was extracted and prepared for histological evaluation. There were no significant differences in the clinical and radiographic responses or in the quality of dentin bridges (P > 0.05). However, the dentin bridge was significantly thicker in MTA/TDM group than MTA group (P = 0.003). Using the combination of MTA/TDM as a pulp-dressing agent may form a thicker dentin bridge compared to MTA alone.
Collapse
Affiliation(s)
- Payman Mehrvarzfar
- Department of Endodontics, Dental Branch, Islamic Azad University, Tehran, Iran
| | - Paul V Abbott
- Clinical Dentistry, School of Dentistry, The University of Western Australia, Nedlands, WA, Australia
| | - Fatemeh Mashhadiabbas
- Department of Maxillofacial Pathology, Dental Branch, Shahid Beheshti University, Tehran, Iran
| | - Mehdi Vatanpour
- Department of Endodontics, Dental Branch, Islamic Azad University, Tehran, Iran
| | | |
Collapse
|
16
|
In Vitro and In Vivo Dentinogenic Efficacy of Human Dental Pulp-Derived Cells Induced by Demineralized Dentin Matrix and HA-TCP. Stem Cells Int 2017; 2017:2416254. [PMID: 28761445 PMCID: PMC5518496 DOI: 10.1155/2017/2416254] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 04/26/2017] [Accepted: 05/03/2017] [Indexed: 01/09/2023] Open
Abstract
Human dental pulp cells have been known to have the stem cell features such as self-renewal and multipotency. These cells are differentiated into hard tissue by addition of proper cytokines and biomaterials. Hydroxyapatite-tricalcium phosphates (HA-TCPs) are essential components of hard tissue and generally used as a biocompatible material in tissue engineering of bone. Demineralized dentin matrix (DDM) has been reported to increase efficiency of bone induction. We compared the efficiencies of osteogenic differentiation and in vivo bone formation of HA-TCP and DDM on human dental pulp stem cells (hDPSCs). DDM contains inorganic components as with HA-TCP, and organic components such as collagen type-1. Due to these components, osteoinduction potential of DDM on hDPSCs was remarkably higher than that of HA-TCP. However, the efficiencies of in vivo bone formation are similar in HA-TCP and DDM. Although osteogenic gene expression and bone formation in immunocompromised nude mice were similar levels in both cases, dentinogenic gene expression level was slightly higher in DDM transplantation than in HA-TCP. All these results suggested that in vivo osteogenic potentials in hDPSCs are induced with both HA-TCP and DDM by osteoconduction and osteoinduction, respectively. In addition, transplantation of hDPSCs/DDM might be more effective for differentiation into dentin.
Collapse
|
17
|
Analysis of the Adherence of Dental Pulp Stem Cells on Two-Dimensional and Three-Dimensional Silk Fibroin-Based Biomaterials. J Craniofac Surg 2017; 28:939-943. [DOI: 10.1097/scs.0000000000003596] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
|
18
|
Bassir SH, Wisitrasameewong W, Raanan J, Ghaffarigarakani S, Chung J, Freire M, Andrada LC, Intini G. Potential for Stem Cell-Based Periodontal Therapy. J Cell Physiol 2016; 231:50-61. [PMID: 26058394 PMCID: PMC4627700 DOI: 10.1002/jcp.25067] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 06/05/2015] [Indexed: 02/06/2023]
Abstract
Periodontal diseases are highly prevalent and are linked to several systemic diseases. The goal of periodontal treatment is to halt the progression of the disease and regenerate the damaged tissue. However, achieving complete and functional periodontal regeneration is challenging because the periodontium is a complex apparatus composed of different tissues, including bone, cementum, and periodontal ligament. Stem cells may represent an effective therapeutic tool for periodontal regeneration due to their plasticity and their ability to regenerate different tissues. This review presents and critically analyzes the available information on stem cell-based therapy for the regeneration of periodontal tissues and suggests new avenues for the development of more effective therapeutic protocols.
Collapse
Affiliation(s)
- Seyed Hossein Bassir
- Division of Periodontology, Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA
| | - Wichaya Wisitrasameewong
- Division of Periodontology, Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA
- Department of Periodontology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, MA
| | - Justin Raanan
- Division of Periodontology, Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA
| | - Sasan Ghaffarigarakani
- Division of Periodontology, Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA
| | - Jamie Chung
- Division of Periodontology, Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA
| | - Marcelo Freire
- Division of Periodontology, Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA
- Department of Applied Oral Sciences, The Forsyth Institute, Cambridge, MA
| | - Luciano C. Andrada
- Division of Periodontology, Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA
| | - Giuseppe Intini
- Division of Periodontology, Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA
- Harvard Stem Cell Institute, Boston, MA
| |
Collapse
|
19
|
Cryopreservation and Banking of Dental Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 951:199-235. [DOI: 10.1007/978-3-319-45457-3_17] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
20
|
Ledesma-Martínez E, Mendoza-Núñez VM, Santiago-Osorio E. Mesenchymal Stem Cells Derived from Dental Pulp: A Review. Stem Cells Int 2015; 2016:4709572. [PMID: 26779263 PMCID: PMC4686712 DOI: 10.1155/2016/4709572] [Citation(s) in RCA: 154] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 08/09/2015] [Indexed: 01/09/2023] Open
Abstract
The mesenchymal stem cells of dental pulp (DPSCs) were isolated and characterized for the first time more than a decade ago as highly clonogenic cells that were able to generate densely calcified colonies. Now, DPSCs are considered to have potential as stem cell source for orthopedic and oral maxillofacial reconstruction, and it has been suggested that they may have applications beyond the scope of the stomatognathic system. To date, most studies have shown that, regardless of their origin in third molars, incisors, or exfoliated deciduous teeth, DPSCs can generate mineralized tissue, an extracellular matrix and structures type dentin, periodontal ligament, and dental pulp, as well as other structures. Different groups worldwide have designed and evaluated new efficient protocols for the isolation, expansion, and maintenance of clinically safe human DPSCs in sufficient numbers for various therapeutics protocols and have discussed the most appropriate route of administration, the possible contraindications to their clinical use, and the parameters to be considered for monitoring their clinical efficacy and proper biological source. At present, DPSC-based therapy is promising but because most of the available evidence was obtained using nonhuman xenotransplants, it is not a mature technology.
Collapse
Affiliation(s)
- Edgar Ledesma-Martínez
- Hematopoiesis and Leukemia Laboratory, Research Unit on Cell Differentiation and Cancer, FES Zaragoza, National Autonomous University of Mexico, 09230 Mexico City, MEX, Mexico
| | - Víctor Manuel Mendoza-Núñez
- Research Unit on Gerontology, FES Zaragoza, National Autonomous University of Mexico, 09230 Mexico City, MEX, Mexico
| | - Edelmiro Santiago-Osorio
- Hematopoiesis and Leukemia Laboratory, Research Unit on Cell Differentiation and Cancer, FES Zaragoza, National Autonomous University of Mexico, 09230 Mexico City, MEX, Mexico
| |
Collapse
|
21
|
Ashri NY, Ajlan SA, Aldahmash AM. Dental pulp stem cells. Biology and use for periodontal tissue engineering. Saudi Med J 2015; 36:1391-9. [PMID: 26620980 PMCID: PMC4707394 DOI: 10.15537/smj.2015.12.12750] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 09/22/2015] [Indexed: 12/14/2022] Open
Abstract
Inflammatory periodontal disease is a major cause of loss of tooth-supporting structures. Novel approaches for regeneration of periodontal apparatus is an area of intensive research. Periodontal tissue engineering implies the use of appropriate regenerative cells, delivered through a suitable scaffold, and guided through signaling molecules. Dental pulp stem cells have been used in an increasing number of studies in dental tissue engineering. Those cells show mesenchymal (stromal) stem cell-like properties including self-renewal and multilineage differentiation potentials, aside from their relative accessibility and pleasant handling properties. The purpose of this article is to review the biological principles of periodontal tissue engineering, along with the challenges facing the development of a consistent and clinically relevant tissue regeneration platform. This article includes an updated review on dental pulp stem cells and their applications in periodontal regeneration, in combination with different scaffolds and growth factors.
Collapse
Affiliation(s)
- Nahid Y Ashri
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia. E-mail.
| | | | | |
Collapse
|
22
|
Liu G, Xu G, Gao Z, Liu Z, Xu J, Wang J, Zhang C, Wang S. Demineralized Dentin Matrix Induces Odontoblastic Differentiation of Dental Pulp Stem Cells. Cells Tissues Organs 2015; 201:65-76. [DOI: 10.1159/000440952] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2015] [Indexed: 11/19/2022] Open
Abstract
The aim of this study was to investigate the effect of demineralized dentin matrix (DDM) on dental pulp stem cells (DPSCs) and the potential of complexes with DPSCs and DDM for mineralized tissue formation. Stem cells derived from the dental pulp of healthy pigs aged 18 months were isolated and cultured. DPSCs were incubated with alpha-minimum essential medium treated with DDM extract at 1 mg/ml (DDM1) or 10 mg/ml (DDM10). The concentrations of 3 growth factors in DDM extract was measured by enzyme-linked immunosorbent assay. Adhesion of DPSCs on DDM and hydroxyapatite-tricalcium phosphate (HA-TCP) surfaces was observed using scanning electron microscopy. Cell proliferation was evaluated with cell counting kit-8 and migration by Transwell migration assays. Odontoblastic differentiation was assessed by alkaline phosphatase (ALP) and alizarin red staining, ALP activity and real-time polymerase chain reaction analysis of markers of ALP, runt-related transcription factor 2, type I collagen, dentin matrix acidic phosphoprotein-1, osteonectin and dentin sialophosphoprotein (DSPP). Finally, DPSCs were combined with DDM and placed subcutaneously in nude mice for 12 weeks; DPSCs combined with HA-TCP and DDM alone served as controls. DDM could promote DPSC adhesion, migration and odontoblastic differentiation. Mineralized tissue formation was observed with the DPSC and DDM combination and the DPSC and HA-TCP combination. The mineralized tissue of the DPSC + DDM combination stained positive for DSPP, similar to the dentin tissue. These results indicate that DDM induces DPSC odontoblastic differentiation, suggesting applications for dentin regeneration.
Collapse
|