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Kong X, Vishwanath V, Neelakantan P, Ye Z. Harnessing antimicrobial peptides in endodontics. Int Endod J 2024; 57:815-840. [PMID: 38441321 DOI: 10.1111/iej.14043] [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: 10/25/2023] [Revised: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 06/13/2024]
Abstract
Endodontic therapy includes various procedures such as vital pulp therapy, root canal treatment and retreatment, surgical endodontic treatment and regenerative endodontic procedures. Disinfection and tissue repair are crucial for the success of these therapies, necessitating the development of therapeutics that can effectively target microbiota, eliminate biofilms, modulate inflammation and promote tissue repair. However, no current endodontic agents can achieve these goals. Antimicrobial peptides (AMPs), which are sequences of amino acids, have gained attention due to their unique advantages, including reduced susceptibility to drug resistance, broad-spectrum antibacterial properties and the ability to modulate the immune response of the organism effectively. This review systematically discusses the structure, mechanisms of action, novel designs and limitations of AMPs. Additionally, it highlights the efforts made by researchers to overcome peptide shortcomings and emphasizes the potential applications of AMPs in endodontic treatments.
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Affiliation(s)
- Xinzi Kong
- Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong S.A.R., China
| | - Vijetha Vishwanath
- Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong S.A.R., China
| | - Prasanna Neelakantan
- Department of Endodontics, University of the Pacific Arthur A. Dugoni School of Dentistry, San Francisco, California, USA
| | - Zhou Ye
- Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong S.A.R., China
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2
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Chinipardaz Z, Zhong JM, Yang S. Regulation of LL-37 in Bone and Periodontium Regeneration. LIFE (BASEL, SWITZERLAND) 2022; 12:life12101533. [PMID: 36294968 PMCID: PMC9604716 DOI: 10.3390/life12101533] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/21/2022] [Accepted: 09/23/2022] [Indexed: 11/06/2022]
Abstract
The goal of regenerative therapy is to restore the structure and function of the lost tissues in the fields of medicine and dentistry. However, there are some challenges in regeneration therapy such as the delivery of oxygen and nutrition, and the risk of infection in conditions such as periodontitis, osteomyelitis, etc. Leucine leucine-37 (LL-37) is a 37-residue, amphipathic, and helical peptide found only in humans and is expressed throughout the body. It has been shown to induce neovascularization and vascular endothelial growth factor (VEGF) expression. LL-37 also stimulates the migration and differentiation of mesenchymal stem cells (MSCs). Recent studies have shown that LL-37 plays an important role in the innate defense system through the elimination of pathogenic microbes and the modulation of the host immune response. LL-37 also manifests other functions such as promoting wound healing, angiogenesis, cell differentiation, and modulating apoptosis. This review summarizes the current studies on the structure, expression, and function of LL-37 and highlights the contributions of LL-37 to oral cavity, periodontium, and bone regeneration.
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Affiliation(s)
- Zahra Chinipardaz
- Department of Basic and Translation Sciences, University of Pennsylvania, 240 South 40th Street, Levy 437, Philadelphia, PA 19104, USA
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jessica M. Zhong
- Department of Basic and Translation Sciences, University of Pennsylvania, 240 South 40th Street, Levy 437, Philadelphia, PA 19104, USA
| | - Shuying Yang
- Department of Basic and Translation Sciences, University of Pennsylvania, 240 South 40th Street, Levy 437, Philadelphia, PA 19104, USA
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Center for Innovation & Precision Dentistry, School of Dental Medicine, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA 19104, USA
- The Penn Center for Musculoskeletal Disorders, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Correspondence:
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3
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Gomez-Sosa JF, Cardier JE, Caviedes-Bucheli J. The hypoxia-dependent angiogenic process in dental pulp. J Oral Biosci 2022; 64:381-391. [PMID: 35998752 DOI: 10.1016/j.job.2022.08.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 08/09/2022] [Accepted: 08/15/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND In this review, we analyzed the existing literature to elucidate how the hypoxia-dependent angiogenic processes work in dental pulp. Angiogenesis is an essential biological process in the maturation and homeostasis of teeth. It involves multiple sequential steps such as endothelial cell proliferation and migration, cell-to-cell contact, and tube formation. HIGHLIGHT Clinical implications of understanding the process of angiogenesis include how the mineralization processes of dental pulp occur and how dental pulp maintains its homeostasis, preventing irreversible inflammation or necrosis. CONCLUSION The angiogenesis process in dental pulp regulates adequate concentrations of oxygen required for mineralization in root development and defense mechanisms against chronic stimuli.
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Affiliation(s)
- Jose Francisco Gomez-Sosa
- Unidad de Terapia Celular - Centro de Medicina Regenerativa, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas-Venezuela.
| | - Jose E Cardier
- Unidad de Terapia Celular - Centro de Medicina Regenerativa, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas-Venezuela
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4
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Álvarez-Vásquez JL, Castañeda-Alvarado CP. Dental pulp fibroblast: A star Cell. J Endod 2022; 48:1005-1019. [DOI: 10.1016/j.joen.2022.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 12/16/2022]
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5
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Yong Z, Kuang G, Fengying S, Shoumei X, Duohong Z, Jiacai H, Xuyan T. Comparison of the Angiogenic Ability between SHED and DPSC in a Mice Model with Critical Limb Ischemic. Tissue Eng Regen Med 2022; 19:861-870. [PMID: 35474506 PMCID: PMC9294125 DOI: 10.1007/s13770-022-00452-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/14/2022] [Accepted: 03/09/2022] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND Regenerative medicine by using stem cells from dental pulp is promising for treating patients with critical limb ischemic (CLI). Here, we investigated the difference in the angiogenetic ability of stem cells from human exfoliated deciduous teeth (SHED) and human dental pulp stem cells (DPSC). METHODS SHED and DPSC were harvested from dental pulp and analyzed in flow- cytometry for detecting the expression of surface markers. Levels of angiogenetic marker were examined by RT-PCR and Western-blot. Eighteen immunodeficient mice of critical limb ischemic model were divided into three groups: SHED, DPSC and saline, which was administered with SHED, DPSC or saline intramuscularly. Histological examination was performed to detect the regenerative results. RESULTS A highly expression of CD146 was detected in SHED. Moreover, cells with negative expression of both CD146 and CD31 in SHED were more in comparison with those in DPSC. Expression of angiogenesis factors including CXCL12, CXCR4, Hif-1a, CD31, VEGF and bFGF were significant higher in SHED than DPSC by the RT-PCR and Western-Blot results. SHED induced more CD31 expression and less fibrous tissue formation in the critical limb ischemic model as compare with DPSC and saline. CONCLUSION Both SHED and DPSC possessed the ability of repairing CLI. With expressing more proangiogenesis factors, SHED may have the advantage of repairing CLI.
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Affiliation(s)
- Zhou Yong
- College & Hospital of Stomatology, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, 230032, China.,Department of Dental Implantology, College & Hospital of Stomatology, Anhui Medical University, Hefei, 230032, China.,Periodontal Department College & Hospital of Stomatology, Anhui Medical University, Hefei, 230032, China
| | - Gu Kuang
- College & Hospital of Stomatology, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, 230032, China.,Periodontal Department College & Hospital of Stomatology, Anhui Medical University, Hefei, 230032, China
| | - Sun Fengying
- College & Hospital of Stomatology, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, 230032, China.,Periodontal Department College & Hospital of Stomatology, Anhui Medical University, Hefei, 230032, China
| | - Xuan Shoumei
- College & Hospital of Stomatology, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, 230032, China.,Periodontal Department College & Hospital of Stomatology, Anhui Medical University, Hefei, 230032, China
| | - Zou Duohong
- Department of Oral Surgery, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, School of Medicine, Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200011, China.,Periodontal Department College & Hospital of Stomatology, Anhui Medical University, Hefei, 230032, China
| | - He Jiacai
- College & Hospital of Stomatology, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, 230032, China.,Department of Dental Implantology, College & Hospital of Stomatology, Anhui Medical University, Hefei, 230032, China.,Periodontal Department College & Hospital of Stomatology, Anhui Medical University, Hefei, 230032, China
| | - Tang Xuyan
- College & Hospital of Stomatology, Key Laboratory of Oral Diseases Research of Anhui Province, Anhui Medical University, Hefei, 230032, China.
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6
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Vijayashree RJ, Sivapathasundharam B. The diverse role of oral fibroblasts in normal and disease. J Oral Maxillofac Pathol 2022; 26:6-13. [PMID: 35571294 PMCID: PMC9106253 DOI: 10.4103/jomfp.jomfp_48_22] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/03/2022] [Accepted: 02/03/2022] [Indexed: 11/22/2022] Open
Abstract
Fibroblasts are the major cellular component of the connective tissue. They differ both structurally and functionally based on their location. The oral fibroblasts vary from the dermal fibroblasts in their origin, properties and also functions. These cells play an important role in wound healing, tumor progression and metastasis, allergic reactions. In this review, the various functions of the oral fibroblasts are discussed in detail.
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Affiliation(s)
- R J Vijayashree
- Department of Oral Pathology and Microbiology, Meenakshi Ammal Dental College and Hospital, Chennai, Tamil Nadu, India
| | - B Sivapathasundharam
- Department of Oral Pathology and Microbiology, Priyadharshini Dental College and Hospital, Tiruvallur, Tamil Nadu, India
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Application of Selected Biomaterials and Stem Cells in the Regeneration of Hard Dental Tissue in Paediatric Dentistry-Based on the Current Literature. NANOMATERIALS 2021; 11:nano11123374. [PMID: 34947723 PMCID: PMC8709498 DOI: 10.3390/nano11123374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 11/28/2022]
Abstract
Currently, the development of the use of biomaterials and their application in medicine is causing rapid changes in the fields of regenerative dentistry. Each year, new research studies allow for the discovery of additional possibilities of dental tissue restoration. The structure and functions of teeth are complex. They consist of several diverse tissues that need to act together to ensure the tooth’s function and durability. The integrity of a tooth’s enamel, dentin, cementum, and pulp tissue allows for successful mastication. Biomaterials that are needed in dentistry must withstand excessive loading forces, be biocompatible with the hosts’ tissues, and stable in the oral cavity environment. Moreover, each tooth’s tissue, as well as aesthetic qualities in most cases, should closely resemble the natural dental tissues. This is why tissue regeneration in dentistry is such a challenge. This scientific research focuses on paediatric dentistry, its classification of caries, and the use of biomaterials in rebuilding hard dental tissues. There are several methods described in the study, including classical conservative methods such as caries infiltration or stainless-steel crowns. Several clinical cases are present, allowing a reader to better understand the described methods. Although the biomaterials mentioned in this work are artificial, there is currently ongoing research regarding clinical stem cell applications, which have a high potential for becoming one of the most common techniques of lost dental-tissue regeneration in the near future. The current state of stem cell development is mentioned, as well as the various methods of its possible application in dentistry.
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8
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Lee HN, Liang C, Liao L, Tian WD. Advances in Research on Stem Cell-Based Pulp Regeneration. Tissue Eng Regen Med 2021; 18:931-940. [PMID: 34536210 DOI: 10.1007/s13770-021-00389-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/17/2021] [Accepted: 08/18/2021] [Indexed: 02/05/2023] Open
Abstract
Although root canal therapy is the most common and widely used treatment at clinical presentation, there are still some postoperative complications. As cell biology and tissue engineering techniques advance rapidly, the use of biological therapy to regenerate dental pulp has become a new trend; Relevant literatures in recent five years were searched using key words such as "root canal therapy", "Dental pulp stem cells", "Dental pulp regeneration", and "Cell homing" in PubMed, Web of Science, etc; Dental pulp stem cells (DPSCs) have multi-differentiation potential, self-renewal capability, and high proliferative ability. Stem cell-based dental pulp regeneration has emerged as a new research hot spot in clinical therapy. Recently, dental pulp-like structures have been generated by the transplantation of exogenous DPSCs or the induction of homing of endogenous DPSCs. Studies on DPSCs are important and significant for dental pulp regeneration and dental restoration; In this review, the existing clinical treatment methods, dental pulp regeneration, and DPSC research status are revealed, and their application prospects are discussed. The stem cell-based pulp regeneration exerts promising potential in clinical therapy for pulp regeneration.
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Affiliation(s)
- Hua-Nien Lee
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases and Engineering Research Center of Oral Translational Medicine, Ministry of Education and National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610044, China
| | - Cheng Liang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases and Engineering Research Center of Oral Translational Medicine, Ministry of Education and National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610044, China
| | - Li Liao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases and Engineering Research Center of Oral Translational Medicine, Ministry of Education and National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610044, China.
| | - Wei-Dong Tian
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases and Engineering Research Center of Oral Translational Medicine, Ministry of Education and National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610044, China.
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9
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Yun KH, Ko MJ, Chae YK, Lee K, Nam OH, Lee HS, Cheon K, Choi SC. Doxycycline-Loaded Nitric Oxide-Releasing Nanomatrix Gel in Replanted Rat Molar on Pulp Regeneration. APPLIED SCIENCES (BASEL, SWITZERLAND) 2021; 11:6041. [PMID: 36004383 PMCID: PMC9397492 DOI: 10.3390/app11136041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The aim of the present study was to evaluate the effect of doxycycline-loaded NO-releasing nanomatrix gel on pulp regeneration in replantation of avulsed rat teeth. A total of 28 maxillary first molars extracted from rats were replanted. The rats were divided into two groups based on the use of root surface treatment: doxycycline-loaded NO-releasing nanomatrix group and no treatment. Eight weeks after replantation, the rats were sacrificed, and the teeth were evaluated using histomorphometric analysis. On histomorphometric analysis, the NO-releasing nanomatrix group demonstrated a significantly lower grade of pulp inflammation (1.00 ± 1.11, mean ± standard deviation) compared to the no treatment group (2.21 ± 1.25, p = 0.014). NO-releasing nanomatrix group showed a significantly higher grade of pulp regeneration (2.57 ± 0.85, p = 0.012) and significantly lower grade of pulp inflammation (1.00 ± 0.68, p = 0.025) compared to the no treatment group. In conclusion, NO-releasing nanomatrix gel improved pulp regeneration of replanted teeth, though the sample size of this study was rather small. Within the limits of this study, NO-releasing nanomatrix gel can provide more favorable pulpal regeneration despite replantation.
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Affiliation(s)
- Kwan-Hee Yun
- Department of Pediatric Dentistry, Graduate School, Kyung Hee University, Seoul 02447, Korea
| | - Mi-Ja Ko
- Department of Pediatric Dentistry, Graduate School, Kyung Hee University, Seoul 02447, Korea
| | - Yong-Kown Chae
- Department of Pediatric Dentistry, Graduate School, Kyung Hee University, Seoul 02447, Korea
| | - Koeun Lee
- Department of Pediatric Dentistry, Kyung Hee University Dental Hospital, Seoul 17104, Korea
| | - Ok-Hyung Nam
- Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Hyo-Seol Lee
- Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Kyounga Cheon
- Department of Pediatric Dentistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Sung-Chul Choi
- Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
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Le Fournis C, Jeanneau C, Giraud T, El Karim I, Lundy FT, About I. Fibroblasts Control Macrophage Differentiation during Pulp Inflammation. J Endod 2021; 47:1427-1434. [PMID: 34181951 DOI: 10.1016/j.joen.2021.06.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 06/16/2021] [Accepted: 06/18/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION During pulp inflammation, recruited macrophages can differentiate into 2 phenotypes: proinflammatory M1 and anti-inflammatory M2. Pulp fibroblasts have previously been shown to regulate pulp inflammation via cytokine and growth factor secretion. We hypothesized that upon carious injury, pulp fibroblasts interact with macrophages and modulate their differentiation. METHODS Cultures of pulp fibroblasts were physically injured and incubated with lipoteichoic acid (LTA) to mimic the pulp environment underlying a carious lesion. Physical injuries without LTA were performed on cultured fibroblasts to simulate the surrounding pulp tissue. Fibroblast supernatants were collected and added to undifferentiated macrophages to study their differentiation into M1 or M2 phenotypes by investigating cytokine secretion profiles and phagocytosis capacity. Histologic staining and immunofluorescence were performed on healthy and carious human tooth sections to localize the 2 macrophage phenotypes. RESULTS LTA-stimulated fibroblasts induced macrophage differentiation into the M1 phenotype with a significant increase both in tumor necrosis factor alpha secretion and phagocytosis capacity. By contrast, injured fibroblasts without LTA led to M2 differentiation with a significant increase in interleukin 10 secretion and low phagocytosis capacity. In carious teeth, M1 macrophages were detected mainly in the pulp zone underlying caries, whereas M2 macrophages were detected in the peripheral inflammatory zone. CONCLUSIONS Fibroblasts induced macrophage differentiation to proinflammatory M1 with high bacteria phagocytosis capacity to control infection at the carious front. Fibroblasts located at the periphery of the inflammatory zone induced macrophage differentiation to anti-inflammatory M2. The fine balance between the 2 phenotypes may represent a prerequisite for initiating the healing process.
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Affiliation(s)
- Chloé Le Fournis
- Aix Marseille University, CNRS, Institute of Movement Sciences, Marseille, France
| | - Charlotte Jeanneau
- Aix Marseille University, CNRS, Institute of Movement Sciences, Marseille, France
| | - Thomas Giraud
- Aix Marseille University, CNRS, Institute of Movement Sciences, Marseille, France; APHM, Hôpital Timone, Service d'Odontologie, Marseille, France
| | - Ikhlas El Karim
- Wellcome-Wolfson for Experimental Medicine, Queen's University Belfast, Belfast, United Kingdom
| | - Fionnuala T Lundy
- Wellcome-Wolfson for Experimental Medicine, Queen's University Belfast, Belfast, United Kingdom
| | - Imad About
- Aix Marseille University, CNRS, Institute of Movement Sciences, Marseille, France.
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Li B, Ouchi T, Cao Y, Zhao Z, Men Y. Dental-Derived Mesenchymal Stem Cells: State of the Art. Front Cell Dev Biol 2021; 9:654559. [PMID: 34239870 PMCID: PMC8258348 DOI: 10.3389/fcell.2021.654559] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 04/29/2021] [Indexed: 12/11/2022] Open
Abstract
Mesenchymal stem cells (MSCs) could be identified in mammalian teeth. Currently, dental-derived MSCs (DMSCs) has become a collective term for all the MSCs isolated from dental pulp, periodontal ligament, dental follicle, apical papilla, and even gingiva. These DMSCs possess similar multipotent potential as bone marrow-derived MSCs, including differentiation into cells that have the characteristics of odontoblasts, cementoblasts, osteoblasts, chondrocytes, myocytes, epithelial cells, neural cells, hepatocytes, and adipocytes. Besides, DMSCs also have powerful immunomodulatory functions, which enable them to orchestrate the surrounding immune microenvironment. These properties enable DMSCs to have a promising approach in injury repair, tissue regeneration, and treatment of various diseases. This review outlines the most recent advances in DMSCs' functions and applications and enlightens how these advances are paving the path for DMSC-based therapies.
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Affiliation(s)
- Bo Li
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Takehito Ouchi
- Department of Dentistry and Oral Surgery, School of Medicine, Keio University, Tokyo, Japan
- Department of Physiology, Tokyo Dental College, Tokyo, Japan
| | - Yubin Cao
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Head and Neck Oncology, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Yi Men
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
- Department of Head and Neck Oncology, West China School of Stomatology, Sichuan University, Chengdu, China
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12
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Alghutaimel H, Yang X, Drummond B, Nazzal H, Duggal M, Raïf E. Investigating the vascularization capacity of a decellularized dental pulp matrix seeded with human dental pulp stem cells: in vitro and preliminary in vivo evaluations. Int Endod J 2021; 54:1300-1316. [PMID: 33709438 DOI: 10.1111/iej.13510] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 12/17/2022]
Abstract
AIM To investigate the vascularization capacity of a decellularized dental pulp matrix (DDP) of bovine origin seeded with human dental pulp stem cells (hDPSCs) in vitro and to present preliminary in vivo findings. METHODOLOGY Bovine dental pulps were decellularized and then analysed using histological staining and DNA quantification. The resultant DDPs were characterized using immunohistochemical staining for the retention of vascular endothelial growth factor A (VEGF-A) and fibroblast growth factor 2 (FGF-2). Furthermore, DDPs were recellularized with hDPSCs and analysed histologically. The expression of markers involved in angiogenesis by hDPSCs colonizing the DDPs was assessed in vitro. A preliminary in vivo study was then conducted in which hDPSCs-seeded and unseeded DDPs were inserted in debrided human premolars root slices and implanted subcutaneously in immunodeficient mice. Samples were retrieved after 30 days and analysed using histological and immunohistochemical staining. The independent samples t-test, analysis of variance and a Kruskal-Wallis test were used to analyse the quantitative data statistically depending on the group numbers and normality of data distribution. The difference between the groups was considered significant when the P-value was less than 0.05. RESULTS Acellular dental pulp matrices were generated following bovine dental pulp decellularization. Evaluation of the developed DDPs revealed a significant DNA reduction (P < 0.0001) with preservation of the native histoarchitecture and vasculature and retention of VEGF-A and FGF-2. Upon recellularization of the DDPs with hDPSCs, the in vitro analyses revealed cell engraftment with progressive repopulation of DDPs' matrices and vasculature and with enhanced expression of markers involved in angiogenesis. In vivo implantation of root slices with hDPSCs-seeded DDPs revealed apparent vascularization enhancement as compared to the unseeded DDP group (P < 0.0001). CONCLUSIONS The developed decellularized dental pulp matrix had pro-angiogenic properties characterized by the retention of native vasculature and angiogenic growth factors. Seeding of hDPSCs into the DDP led to progressive repopulation of the vasculature, enhanced expression of markers involved in angiogenesis in hDPSCs and improved in vivo vascularization capacity. The se suggest that a combination of DDP and hDPSCs have the potential to provide a promising vascularization promoting strategy for dental pulp regeneration.
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Affiliation(s)
- H Alghutaimel
- Department of Paediatric Dentistry, School of Dentistry, University of Leeds, Leeds, UK.,Department of Paediatric Dentistry, School of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - X Yang
- Department of Oral Biology, School of Dentistry, University of Leeds, Leeds, UK
| | - B Drummond
- Department of Paediatric Dentistry, School of Dentistry, University of Leeds, Leeds, UK
| | - H Nazzal
- Paediatric Dentistry Section, Hamad Dental Centre, Hamad Medical Corporation, Doha, Qatar
| | - M Duggal
- College of Dental Medicine, QU Health, Qatar University, Doha, Qatar
| | - E Raïf
- Department of Oral Biology, School of Dentistry, University of Leeds, Leeds, UK
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13
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Caviedes-Bucheli J, Lopez-Moncayo LF, Muñoz-Alvear HD, Gomez-Sosa JF, Diaz-Barrera LE, Curtidor H, Munoz HR. Expression of substance P, calcitonin gene-related peptide and vascular endothelial growth factor in human dental pulp under different clinical stimuli. BMC Oral Health 2021; 21:152. [PMID: 33757513 PMCID: PMC7988903 DOI: 10.1186/s12903-021-01519-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 03/16/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The aim of this study was to measure the dental pulp inflammatory response through neuropeptides (SP and CGRP) as a response to occlusal trauma, orthodontic movements and a combination of both, as well as the angiogenic defense mechanism through VEGF expression, which could be the initial step to mineralized tissue formation. METHODS Forty human dental pulp samples were collected from healthy first premolars with extraction indicated due to orthodontic reasons from a sample of 20 patients. Patients were divided into four groups with 10 premolars each (1 mandibular and 1 maxillary premolar from each patient): healthy pulp control group, occlusal trauma group, moderate orthodontic forces group; and occlusal trauma plus moderate orthodontic forces group. Stimuli were applied for 24 h before tooth extraction in all experimental groups. All samples were processed, and SP, CGRP, and VEGF were measured by radioimmunoassay. The Kruskal-Wallis test was performed to assess significant differences among groups and Mann-Whitney's U post hoc pairwise comparisons were also performed. RESULTS The highest increase in SP, CGRP, and VEGF expressions was found in the occlusal trauma plus orthodontic forces group, followed by the moderate orthodontic forces, the occlusal trauma and the control groups, with statistically significant differences between all groups for each of the 3 peptides analyzed (Kruskal-Wallis p < 0.001). All possible pairwise post-hoc comparisons were also significant for each peptide analyzed (Mann-Whitney's U p < 0.001). CONCLUSION SP, CGRP, and VEGF expressions significantly increase in human dental pulps when stimulated by occlusal trauma combined with moderate orthodontic forces, as compared with these two stimuli applied independently. Name of the registry: Importance of Neurogenic Inflammation in the Angiogenic Response of the Dental Pulp as a Defensive Response. TRIAL REGISTRATION NUMBER NCT03804034. Date of registration: 01/15/2019 Retrospectively registered. URL of trial registry record: https://clinicaltrials.gov/ct2/show/NCT03804034?term=NCT03804034&draw=2&rank=1 .
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Affiliation(s)
- Javier Caviedes-Bucheli
- Centro de Investigaciones Odontologicas, Pontificia Universidad Javeriana, Bogotá, Colombia. .,Endodontics Department, Universidad Cooperativa de Colombia, Pasto, Colombia.
| | | | | | | | | | | | - Hugo Roberto Munoz
- Endodontics Department, Universidad de San Carlos de Guatemala, Guatemala City, Guatemala
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Nagaraja S, Mathew S, Abraham A, Ramesh P, Chandanala S. Evaluation of vascular endothelial growth factor - A release from platelet-rich fibrin, platelet-rich fibrin matrix, and dental pulp at different time intervals. J Conserv Dent 2021; 23:359-363. [PMID: 33623236 PMCID: PMC7883787 DOI: 10.4103/jcd.jcd_465_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 07/13/2020] [Accepted: 08/12/2020] [Indexed: 11/04/2022] Open
Abstract
Background Lack of collateral blood supply and the low compliance environment of pulp makes its healing, a challenge. Vascular endothelial growth factor (VEGF) is a primary angiogenic growth factor. Knowledge of dose and time-dependent expression of VEGF from platelet concentrates, namely platelet-rich fibrin (PRF) and PRF matrix (PRFM), along with vital pulp can aid in developing strategies to improve the outcome of vital pulp therapy and regenerative procedures. Hence, the aim of this study was to compare VEGF kinetics of PRF, PRFM, and dental pulp. Materials and Methods The PRF, PRFM, and vital dental pulp were placed in culture media for a week; the supernatant was collected from these samples at days 1, 4, and 7. VEGF-A expression was evaluated using ELISA and compared with the weight of the sample so as to quantify the release of VEGF-A per milligram of sample. Results PRF exhibited maximum VEGF-A release on day 4 and was sustained till day 7. In contrast, PRFM and dental pulp showed no significant release of VEGF-A till day 7. However, on day 7, there was a rapid increase in VEGF-A expression from dental pulp that was comparable to PRF. On comparing the release of VEGF-A per milligram of tissue, pulp exhibited the maximum values. Conclusion Among the platelet concentrates, differential expression of VEGF-A was superior in PRF. The use of PRF in partial pulpitis should be explored in order to restore pulp vascularity and hasten pulpal healing.
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Affiliation(s)
- Shruthi Nagaraja
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Sylvia Mathew
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Anil Abraham
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Poornima Ramesh
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Shashank Chandanala
- Department of Adult Stem Cells, School of Regenerative Medicine, Manipal University, Bengaluru, Karnataka, India
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Jochums A, Volk J, Perduns R, Plum M, Schertl P, Bakopoulou A, Geurtsen W. Influence of 2-hydroxyethyl methacrylate (HEMA) exposure on angiogenic differentiation of dental pulp stem cells (DPSCs). Dent Mater 2021; 37:534-546. [PMID: 33579530 DOI: 10.1016/j.dental.2020.12.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 11/13/2020] [Accepted: 12/30/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The angiogenic differentiation of dental pulp stem cells (DPSCs) is important for tissue homeostasis and wound healing. In this study the influence of 2-hydroxyethyl methacrylate (HEMA) on angiogenic differentiation was investigated. METHODS To evaluate HEMA effects on angiogenic differentiation, DPSCs were cultivated in angiogenic differentiation medium (ADM) in the presence or absence of non-toxic HEMA concentrations (0.1 mM and 0.5 mM). Subsequently, angiogenic differentiation was analyzed on the molecular level by qRT-PCR and protein profiler analyzes of angiogenic markers and flow cytometry of PECAM1. The influence of HEMA on angiogenic phenotypes was analyzed by cell migration and sprouting assays. RESULTS Treatment with 0.5 mM HEMA during differentiation can lead to a slight reduction of angiogenic markers on mRNA level. HEMA also seems to slightly reduce the quantity of angiogenic cytokines (not significant). However, these HEMA concentrations have no detectable influence on cell migration, the abundance of PECAM1 and the formation of capillaries. Higher concentrations caused primary cytotoxic effects in angiogenic differentiation experiments conducted for longer periods than 72 h. SIGNIFICANCE Non-cytotoxic HEMA concentrations seem to have a minor impact on the expression of angiogenic markers, essentially on the mRNA level, without affecting the angiogenic differentiation process itself on a detectable level.
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Affiliation(s)
- André Jochums
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, D-30625 Hannover, Germany.
| | - Joachim Volk
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, D-30625 Hannover, Germany.
| | - Renke Perduns
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, D-30625 Hannover, Germany.
| | - Melanie Plum
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, D-30625 Hannover, Germany.
| | - Peter Schertl
- Department of Cell Biology and Biophysics, Leibniz University Hannover, D-30419 Hannover, Germany
| | - Athina Bakopoulou
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.Th), Greece.
| | - Werner Geurtsen
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, D-30625 Hannover, Germany.
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Dental Mesenchymal Stem/Progenitor Cells: A New Prospect in Regenerative Medicine. Stem Cells 2021. [DOI: 10.1007/978-3-030-77052-5_9] [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]
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Shen S, Shang L, Liu H, Liang Q, Liang W, Ge S. AGGF1 inhibits the expression of inflammatory mediators and promotes angiogenesis in dental pulp cells. Clin Oral Investig 2020; 25:581-592. [PMID: 32789654 DOI: 10.1007/s00784-020-03498-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 08/03/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To determine the role of angiogenic factor with G-patch and FHA domain 1 (AGGF1) in inflammatory response of human dental pulp cells (DPCs) and the underneath mechanism and to explore its role in angiogenesis. MATERIALS AND METHODS The expression of AGGF-1 in human healthy and inflammatory pulp tissues was detected by immunohistochemistry. RT-qPCR and Western blot were used to evaluate the expression of AGGF1 in DPCs stimulated by lipopolysaccharide (LPS). After AGGF1 was knocked down, the expression of LPS-induced inflammatory cytokines in DPCs was quantified by RT-qPCR and ELISA. Immunofluorescence and Western blot were used to assess the activation of NF-κB signaling. Inflammatory cytokines were detected by RT-qPCR and ELISA in DPCs pretreated with NF-κB pathway inhibitors before LPS stimulation, and then the effect of AGGF1 on angiogenesis was also evaluated. RESULTS AGGF1 expression increased in inflammatory dental pulp tissues. In DPCs stimulated by LPS, AGGF1 was upregulated in a dose-dependent manner (P < 0.05). In AGGF1 knockdown cells, the expression of IL-6, IL-8, and monocyte chemoattractant protein-1 (MCP-1/CCL-2) increased by LPS stimulation (P < 0.001). Nuclear translocation of p65 was promoted, and the addition of NF-κB inhibitors inhibited the expression of inflammatory factors. Meanwhile, knockdown of AGGF1 inhibited vascularization. CONCLUSIONS AGGF1 inhibited the synthesis of inflammatory cytokines through NF-κB signaling pathway and promoted the angiogenesis of DPCs. CLINICAL RELEVANCE This study might shed light in the treatment of pulpitis and regeneration of dental pulp tissues; however, more clinical trials are required to validate these findings.
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Affiliation(s)
- Song Shen
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, 250012, Jinan, People's Republic of China
| | - Lingling Shang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, 250012, Jinan, People's Republic of China
| | - Hongrui Liu
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, 250012, Jinan, People's Republic of China
| | - Qianyu Liang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, 250012, Jinan, People's Republic of China
| | - Wei Liang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, 250012, Jinan, People's Republic of China
| | - Shaohua Ge
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, 250012, Jinan, People's Republic of China.
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Zhou H, Li X, Yin Y, He XT, An Y, Tian BM, Hong YL, Wu LA, Chen FM. The proangiogenic effects of extracellular vesicles secreted by dental pulp stem cells derived from periodontally compromised teeth. Stem Cell Res Ther 2020; 11:110. [PMID: 32143712 PMCID: PMC7060605 DOI: 10.1186/s13287-020-01614-w] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 02/16/2020] [Accepted: 02/20/2020] [Indexed: 02/07/2023] Open
Abstract
Background Although dental pulp stem cells (DPSCs) isolated from periodontally compromised teeth (P-DPSCs) have been demonstrated to retain pluripotency and regenerative potential, their use as therapeutics remains largely unexplored. In this study, we investigated the proangiogenic effects of extracellular vesicles (EVs) secreted by P-DPSCs using in vitro and in vivo testing models. Methods Patient-matched DPSCs derived from periodontally healthy teeth (H-DPSCs) were used as the control for P-DPSCs. Conditioned media (CMs) derived from H-DPSCs and P-DPSCs (H-CM and P-CM), CMs derived from both cell types pretreated with the EV secretion blocker GW4869 (H-GW and P-GW), and EVs secreted by H-DPSCs and P-DPSCs (H-EVs and P-EVs) were prepared to test their proangiogenic effects on endothelial cells (ECs). Cell proliferation, migration, and tube formation were assessed using the Cell Counting Kit-8 (CCK-8), transwell/scratch wound healing, and Matrigel assays, respectively. Specifically, quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) and western blot analysis were used to examine the expression levels of angiogenesis-related genes/proteins in ECs in response to EV-based incubation. Finally, a full-thickness skin defect model was applied to test the effects of EVs on wound healing and new vessel formation. Results Both H-CM and P-CM promoted EC angiogenesis, but the proangiogenic effects were compromised when ECs were incubated in H-GW and P-GW, wherein the EV secretion was blocked by pretreatment with GW4869. In EV-based incubations, although both H-EVs and P-EVs were found to enhance the angiogenesis-related activities of ECs, P-EVs exerted a more robust potential to stimulate EC proliferation, migration, and tube formation. In addition, P-EVs led to higher expression levels of angiogenesis-related genes/proteins in ECs than H-EVs. Similarly, both P-EVs and H-EVs were found to accelerate wound healing and promote vascularization across skin defects in mice, but wounds treated with P-EVs resulted in a quicker healing outcome and enhanced new vessel formation. Conclusions The findings of the present study provide additional evidence that P-DPSCs derived from periodontally diseased teeth represent a potential source of cells for research and therapeutic use. Particularly, the proangiogenic effects of P-EVs suggest that P-DPSCs may be used to promote new vessel formation in cellular therapy and regenerative medicine.
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Affiliation(s)
- Huan Zhou
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Xuan Li
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Yuan Yin
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Xiao-Tao He
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Ying An
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Bei-Min Tian
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Yong-Long Hong
- Stomatology Center, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, People's Republic of China.
| | - Li-An Wu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China.
| | - Fa-Ming Chen
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China.
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Vitor LLR, Prado MTO, Lourenço Neto N, Oliveira RC, Sakai VT, Santos CF, Dionísio TJ, Rios D, Cruvinel T, Machado MAAM, Oliveira TM. Does photobiomodulation change the synthesis and secretion of angiogenic proteins by different pulp cell lineages? JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 203:111738. [PMID: 31954290 DOI: 10.1016/j.jphotobiol.2019.111738] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 09/02/2019] [Accepted: 12/09/2019] [Indexed: 12/28/2022]
Abstract
This study aimed to compare the synthesis and secretion of VEGF-A, VEGF-C, VEGF-D, VEGFR1, VEGFR2, and FGF-2 between pulp fibroblasts from human primary teeth (HPF) and stem cell from human deciduous teeth (SHED) before and after photobiomodulation. HPF were obtained from explant technique and characterized by immunohistochemistry, while SHED were obtained from digestion technique and characterized by flow cytometry. HPF (control group) and SHED were plated, let to adhere, and put on serum starvation to synchronize the cell cycles prior to photobiomodulation. Then, both cell lineages were irradiated with 660-nm laser according to the following groups: 2.5 and 3.7 J/cm2. MTT and crystal violet assays respectively verified viability and proliferation. ELISA Multiplex Assay assessed the following proteins: VEGF-A, VEGF-C, VEGF-D, VEGFR1, VEGFR2, FGF-2, at 6, 12, and 24 h after photobiomodulation, in supernatant and lysate. Two-way ANOVA/Tukey test evaluated cell viability and proliferation, while angiogenic production and secretion values were analyzed by one-way ANOVA (P < .05). Statistically similar HPF and SHED viability and proliferation patterns occurred before and after photobiomodulation (P > .05). HPF exhibited statistically greater values of all angiogenic proteins than did SHED, at all study periods, except for FGF-2 (supernatant; 12 h); VEGFR1 (lysate; non-irradiated; 12 h); and VEGFR1 (lysate; non-irradiated; 24 h). Photobiomodulation changed the synthesis and secretion of angiogenic proteins by HPF. HPF produced and secreted greater values of all tested angiogenic proteins than did SHED before and after irradiation with both energy densities of 2.5 and 3.7 J/cm2.
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Affiliation(s)
| | - Mariel Tavares Oliveira Prado
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Natalino Lourenço Neto
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Rodrigo Cardoso Oliveira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | - Carlos Ferreira Santos
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Thiago José Dionísio
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Daniela Rios
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Thiago Cruvinel
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | | | - Thais Marchini Oliveira
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
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21
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Sultan N, Amin LE, Zaher AR, Scheven BA, Grawish ME. Dental pulp stem cells: Novel cell-based and cell-free therapy for peripheral nerve repair. World J Stomatol 2019; 7:1-19. [DOI: 10.5321/wjs.v7.i1.1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 11/15/2018] [Accepted: 01/08/2019] [Indexed: 02/06/2023] Open
Abstract
The regeneration of peripheral nerves comprises complicated steps involving a set of cellular and molecular events in distal nerve stumps with axonal sprouting and remyelination. Stem cell isolation and expansion for peripheral nerve repair (PNR) can be achieved using a wide diversity of prenatal and adult tissues, such as bone marrow or brain tissues. The ability to obtain stem cells for cell-based therapy (CBT) is limited due to donor site morbidity and the invasive nature of the harvesting process. Dental pulp stem cells (DPSCs) can be relatively and simply isolated from the dental pulps of permanent teeth, extracted for surgical or orthodontic reasons. DPSCs are of neural crest origin with an outstanding ability to differentiate into multiple cell lineages. They have better potential to differentiate into neural and glial cells than other stem cell sources through the expression and secretion of certain markers and a range of neurotropic factors; thus, they should be considered a good choice for PNR using CBT. In addition, these cells have paracrine effects through the secretion of neurotrophic growth factors and extracellular vesicles, which can enhance axonal growth and remyelination by decreasing the number of dying cells and activating local inhabitant stem cell populations, thereby revitalizing dormant or blocked cells, modulating the immune system and regulating inflammatory responses. The use of DPSC-derived secretomes holds great promise for controllable and manageable therapy for peripheral nerve injury. In this review, up-to-date information about the neurotrophic and neurogenic properties of DPSCs and their secretomes is provided.
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Affiliation(s)
- Nessma Sultan
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura 35516, Egypt
| | - Laila E Amin
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura 35516, Egypt
| | - Ahmed R Zaher
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura 35516, Egypt
| | - Ben A Scheven
- School of Dentistry, Oral Biology, College of Medical and Dental Sciences, University of Birmingham, Birmingham B5 7EG, United Kingdom
| | - Mohammed E Grawish
- Department of Oral Biology, Faculty of Dentistry, Mansoura University, Mansoura 35516, Egypt
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Tziafas D, Kodonas K, Gogos C, Tziafa C, Papadimitriou S. EDTA conditioning of circumpulpal dentine induces dentinogenic events in pulpotomized miniature swine teeth. Int Endod J 2018; 52:656-664. [DOI: 10.1111/iej.13048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 11/21/2018] [Indexed: 11/28/2022]
Affiliation(s)
- D. Tziafas
- Hamdan Bin Mohammed College of Dental Medicine Mohammed Bin Rashid University of Medicine and Health Sciences Dubai United Arab Emirates
| | | | | | | | - S. Papadimitriou
- School of Veterinary Medicine Aristotle University of Thessaloniki Thessaloniki Greece
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Morotomi T, Washio A, Kitamura C. Current and future options for dental pulp therapy. JAPANESE DENTAL SCIENCE REVIEW 2018; 55:5-11. [PMID: 30733839 PMCID: PMC6354285 DOI: 10.1016/j.jdsr.2018.09.001] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 07/13/2018] [Accepted: 09/10/2018] [Indexed: 01/01/2023] Open
Abstract
Dental pulp is a connective tissue and has functions that include initiative, formative, protective, nutritive, and reparative activities. However, it has relatively low compliance, because it is enclosed in hard tissue. Its low compliance against damage, such as dental caries, results in the frequent removal of dental pulp during endodontic therapy. Loss of dental pulp frequently leads to fragility of the tooth, and eventually, a deterioration in the patient’s quality of life. With the development of biomaterials such as bioceramics and advances in pulp biology such as the identification of dental pulp stem cells, novel ideas for the preservation of dental pulp, the regenerative therapy of dental pulp, and new biomaterials for direct pulp capping have now been proposed. Therapies for dental pulp are classified into three categories; direct pulp capping, vital pulp amputation, and treatment for non-vital teeth. In this review, we discuss current and future treatment options in these therapies.
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Affiliation(s)
- Takahiko Morotomi
- Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu 803-8580, Japan
| | - Ayako Washio
- Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu 803-8580, Japan
| | - Chiaki Kitamura
- Division of Endodontics and Restorative Dentistry, Department of Science of Oral Functions, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu 803-8580, Japan
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Giraud T, Jeanneau C, Bergmann M, Laurent P, About I. Tricalcium Silicate Capping Materials Modulate Pulp Healing and Inflammatory Activity In Vitro. J Endod 2018; 44:1686-1691. [PMID: 30217466 DOI: 10.1016/j.joen.2018.06.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 06/13/2018] [Accepted: 06/19/2018] [Indexed: 12/14/2022]
Abstract
INTRODUCTION On stimulation by lipoteichoic acid or by a physical injury, fibroblasts have been shown to play a major role in the initiation of the pulp inflammatory reaction and healing through secretion of complement proteins and growth factors. The application of direct pulp-capping materials on these cells may interfere with the inflammatory and the healing processes within the pulp's inextensible environment. This work was designed to study in vitro the effects of silicate-based materials on pulp fibroblast modulation of the initial steps of pulp inflammation and healing. METHODS The effects of Biodentine, TheraCal, and Xeno III eluates were studied on lipoteichoic acid-stimulated and physically injured fibroblasts. Cytokine secretion (interleukin 6, vascular endothelial growth factor, fibroblast growth factor-2, and transforming growth factor-β1) was quantified by enzyme-linked immunosorbent assay. Inflammatory THP-1 adhesion to endothelial cells and their migration and activation were studied in vitro. Human pulp fibroblast proliferation was investigated with the MTT test, and their migration to the injury site was studied with the scratch healing assay. RESULTS Interleukin 6 and vascular endothelial growth factor secretion increased with all materials but to a lesser extent with Biodentine. Fibroblast growth factor-2 and transforming growth factor-β1 secretion was significantly higher with Biodentine than with all other materials. THP-1 cell adhesion to endothelial cells and their activation were reduced by Biodentine and TheraCal. However, their migration decreased only with Biodentine. Fibroblast proliferation significantly increased with Biodentine but significantly decreased with Xeno III after day 6. Finally, only Biodentine induced fibroblast migration to the injury site in the scratch assay. CONCLUSIONS These results confirm that pulp-capping materials affect the early steps of pulp inflammation and healing. They show that Biodentine had the highest pulp healing and anti-inflammatory potential when compared with the resin-containing materials. This highlights the interest of the material choice for direct pulp-capping.
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Affiliation(s)
- Thomas Giraud
- Aix Marseille Univ, CNRS, ISM, Inst Movement Sci, Marseille, France; APHM, Hôpital Timone, Service d'Odontologie, Marseille, France
| | | | - Madison Bergmann
- Aix Marseille Univ, CNRS, ISM, Inst Movement Sci, Marseille, France
| | - Patrick Laurent
- Aix Marseille Univ, CNRS, ISM, Inst Movement Sci, Marseille, France; APHM, Hôpital Timone, Service d'Odontologie, Marseille, France
| | - Imad About
- Aix Marseille Univ, CNRS, ISM, Inst Movement Sci, Marseille, France.
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25
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Abstract
Creating an optimal microenvironment that supports angiogenesis, cell-cell cross talk, cell migration, and differentiation is crucial for pulp/dentin regeneration. It was shown that dental stem cells being seeded onto a scaffold and transplanted in vivo could give rise to a new tissue similar to that of the native pulp. However, the unique structure of the tooth with a pulp space encased within hard dentin allows only a single blood supply from a small apical opening located at the apex of the root canals. Therefore, a further strategy that can address this limitation such as the incorporation of endothelial/endothelial progenitor cells or cells with high angiogenic potential into the transplant is required so that the added cells can contribute to the vascularization within the implant. However, the placement of 2 or more different cell types inside 3-dimensional porous scaffolds is technologically challenging. In contrast to the conventional scaffolding approach, self-assembly of monodispersed cells into 3-dimensional tissue mimics permits true physiological interactions between and among different types of cells without any influence from a secondary material. In this review, we discuss potential strategies that can be used in vasculature engineering in dental pulp regeneration with a specific emphasis on combining prevascularization and scaffold-based or scaffold-free approaches.
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Affiliation(s)
| | - Chengfei Zhang
- Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China.
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26
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Huan J, Dou L, Yan QF, Yang DQ. [An in vitro study of the angiogenic effects of concentrate growth factor on human umbilical vein endothelial cells]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2018; 36:247-251. [PMID: 29984922 DOI: 10.7518/hxkq.2018.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OBJECTIVE This study aimed to explore the effects of concentrate growth factor extracts (CGFe) on human umbilical vein endothelial cells (HUVECs) in vitro. METHODS Concentrate growth factor (CGF) were prepared from the peripheral blood of healthy donors, followed by CGFe. Four groups were designed based on cell culture medium, as follows: 2%CGFe, 5%CGFe, 10%CGFe, and control. The proliferation activity of HUVECs was detected by cell cycle and CCK-8 assays. The migration of HUVECs was detected by scratch assay. The mRNA expression levels of vascular endothelial growth factor (VEGF), chemokine receptor 4 (CXCR4), and platelet derived growth factor (PDGF) were examined by quantitative real time polymerase chain reaction (qRT-PCR). RESULTS Results of CCK-8 and cell cycle assays showed that CGFe promoted the proliferation capability of HUVECs in a dose-dependent manner, and the data had statistical significance among four groups (P<
0.05). The cell migration assay indicated that CGF accelerated wound closure in a dose-dependent manner after 12 h of culture (P<0.05). The results of qRT-PCR showed that CGF upregulated the expression levels of VEGF, CXCR4, and PDGF in HUVECs. CONCLUSIONS CGFe can promote the proliferation, migration, and angiogenic differentiation of HUVECs. Thus, CGF might be an appropriate cure for dental pulp revascularization.
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Affiliation(s)
- Jun Huan
- Dept. of Conservative Dentistry and Endodontics, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, China;Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China;Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Lei Dou
- Dept. of Conservative Dentistry and Endodontics, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, China;Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China;Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Qi-Fang Yan
- Dept. of Conservative Dentistry and Endodontics, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, China;Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China;Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - De-Qin Yang
- Dept. of Conservative Dentistry and Endodontics, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, China;Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China;Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
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27
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Yoshiba N, Edanami N, Tohma A, Takeuchi R, Ohkura N, Hosoya A, Noiri Y, Nakamura H, Yoshiba K. Detection of bone marrow-derived fibrocytes in human dental pulp repair. Int Endod J 2018; 51:1187-1195. [DOI: 10.1111/iej.12940] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 04/12/2018] [Indexed: 01/01/2023]
Affiliation(s)
- N. Yoshiba
- Division of Cariology, Operative Dentistry and Endodontics; Department of Oral Health Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - N. Edanami
- Division of Cariology, Operative Dentistry and Endodontics; Department of Oral Health Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - A. Tohma
- Division of Cariology, Operative Dentistry and Endodontics; Department of Oral Health Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - R. Takeuchi
- Division of Cariology, Operative Dentistry and Endodontics; Department of Oral Health Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - N. Ohkura
- Division of Cariology, Operative Dentistry and Endodontics; Department of Oral Health Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - A. Hosoya
- Division of Histology; Department of Oral Growth and Development; School of Dentistry; Health Sciences University of Hokkaido; Ishikari-gun Hokkaido Japan
| | - Y. Noiri
- Division of Cariology, Operative Dentistry and Endodontics; Department of Oral Health Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - H. Nakamura
- Department of Oral Histology; Institute for Dental Science; Matsumoto Dental University; Shiojiri Nagano Japan
| | - K. Yoshiba
- Division of Cariology, Operative Dentistry and Endodontics; Department of Oral Health Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
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28
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Potential Roles of Dental Pulp Stem Cells in Neural Regeneration and Repair. Stem Cells Int 2018; 2018:1731289. [PMID: 29853908 PMCID: PMC5964589 DOI: 10.1155/2018/1731289] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 03/22/2018] [Indexed: 12/22/2022] Open
Abstract
This review summarizes current advances in dental pulp stem cells (DPSCs) and their potential applications in the nervous diseases. Injured adult mammalian nervous system has a limited regenerative capacity due to an insufficient pool of precursor cells in both central and peripheral nervous systems. Nerve growth is also constrained by inhibitory factors (associated with central myelin) and barrier tissues (glial scarring). Stem cells, possessing the capacity of self-renewal and multicellular differentiation, promise new therapeutic strategies for overcoming these impediments to neural regeneration. Dental pulp stem cells (DPSCs) derive from a cranial neural crest lineage, retain a remarkable potential for neuronal differentiation, and additionally express multiple factors that are suitable for neuronal and axonal regeneration. DPSCs can also express immunomodulatory factors that stimulate formation of blood vessels and enhance regeneration and repair of injured nerve. These unique properties together with their ready accessibility make DPSCs an attractive cell source for tissue engineering in injured and diseased nervous systems. In this review, we interrogate the neuronal differentiation potential as well as the neuroprotective, neurotrophic, angiogenic, and immunomodulatory properties of DPSCs and its application in the injured nervous system. Taken together, DPSCs are an ideal stem cell resource for therapeutic approaches to neural repair and regeneration in nerve diseases.
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29
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Gharaei MA, Xue Y, Mustafa K, Lie SA, Fristad I. Human dental pulp stromal cell conditioned medium alters endothelial cell behavior. Stem Cell Res Ther 2018; 9:69. [PMID: 29562913 PMCID: PMC5861606 DOI: 10.1186/s13287-018-0815-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 02/01/2018] [Accepted: 02/22/2018] [Indexed: 12/13/2022] Open
Abstract
Background Angiogenesis is of utmost importance for tissue regeneration and repair. Human dental pulp stromal cells (hDPSCs) possess angiogenic potential, as they secrete paracrine factors that may alter the host microenvironment. However, more insight into how hDPSCs guide endothelial cells (ECs) in a paracrine fashion is yet to be obtained. Therefore, the current study aimed to investigate the effect(s) of conditioned medium derived from hDPSCs (hDPSC-CM) on EC behavior in vitro. Methods hDPSCs were harvested from third molars scheduled for surgical removal under informed consent. The angiogenic profile of hDPSC-CM was identified using human angiogenesis antibody array and enzyme-linked immunosorbent assay (ELISA). Using real-time reverse transcription-polymerase chain reaction (RT-PCR) and ELISA, the mRNA and protein expression level of specific angiogenic biomarkers was determined in human umbilical vein endothelial cells (HUVECs) exposed to hDPSC-CM. The effect of hDPSC-CM on HUVEC attachment, proliferation and migration was evaluated by crystal violet staining, MTT, transwell migration along with real-time cell monitoring assays (xCELLigence; ACEA Biosciences, Inc.). A Matrigel assay was included to examine the influence of hDPSC-CM on HUVEC network formation. Endothelial growth medium (EGM-2) and EGM-2 supplemented with hDPSC-CM served as experimental groups, whereas endothelial basal medium (EBM-2) was set as negative control. Results A wide range of proangiogenic and antiangiogenic factors, including vascular endothelial growth factor, tissue inhibitor of metalloproteinase protein 1, plasminogen activator inhibitor (serpin E1), urokinase plasminogen activator and stromal cell-derived factor 1, was abundantly detected in hDPSC-CM by protein profiling array and ELISA. hDPSC-CM significantly accelerated the adhesion phases, from sedimentation to attachment and spreading, the proliferation rate and migration of HUVECs as shown in both endpoint assays and real-time cell analysis recordings. Furthermore, Matrigel assay demonstrated that hDPSC-CM stimulated tubulogenesis, affecting angiogenic parameters such as the number of nodes, meshes and total tube length. Conclusions The sustained proangiogenic and promaturation effects of hDPSC-CM shown in this in vitro study strongly suggest that the trophic factors released by hDPSCs are able to trigger pronounced angiogenic responses, even beyond EGM-2 considered as an optimal culture condition for ECs.
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Affiliation(s)
- M A Gharaei
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Årstadveien 19, N-5009, Bergen, Norway
| | - Y Xue
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Årstadveien 19, N-5009, Bergen, Norway
| | - K Mustafa
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Årstadveien 19, N-5009, Bergen, Norway
| | - S A Lie
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Årstadveien 19, N-5009, Bergen, Norway
| | - I Fristad
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Årstadveien 19, N-5009, Bergen, Norway.
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30
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Fujii S, Fujimoto K, Goto N, Abiko Y, Imaoka A, Shao J, Kitayama K, Kanawa M, Sosiawan A, Suardita K, Nishimura F, Kato Y. Characterization of human dental pulp cells grown in chemically defined serum-free medium. Biomed Rep 2018; 8:350-358. [PMID: 29556382 PMCID: PMC5844140 DOI: 10.3892/br.2018.1066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 02/08/2018] [Indexed: 01/09/2023] Open
Abstract
Dental pulp cells (DPCs) are promising candidates for use as transplantable cells in regenerative medicine. However, ex vivo expansion of these cells typically requires culture media containing fetal bovine serum, which may cause infection and immunological reaction following transplantation. In addition, the proliferation and differentiation of DPCs markedly depend upon serum batches. Therefore, the present study examined whether DPCs could be expanded under serum-free conditions. DPCs obtained from four donors were identified to proliferate actively in the serum-free medium, STK2, when compared with those cells in control medium (Dulbecco's modified Eagle's medium containing 10% serum). The high proliferative potential with STK2 was maintained through multiple successive culture passages. DNA microarray analyses demonstrated that the gene expression profile of DPCs grown in STK2 was similar to that of cells grown in the control medium; however, a number of genes related to cell proliferation, including placental growth factor and inhibin-βE, were upregulated in the STK2 cultures. Following induction of osteogenesis, DPCs grown in STK2 induced alkaline phosphatase activity and calcification at higher levels compared with the control medium cultures, indicating maintenance of differentiation potential in STK2. This serum-free culture system with DPCs may have applications in further experimental studies and as a clinical strategy in regenerative medicine.
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Affiliation(s)
- Sakiko Fujii
- Department of Dental Science for Health Promotion, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Katsumi Fujimoto
- Department of Dental and Medical Biochemistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan.,Department of Molecular Biology and Biochemistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Noriko Goto
- Department of Pediatric Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Yoshimitsu Abiko
- Department of Biochemistry and Molecular Biology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba 271-8587, Japan
| | - Asayo Imaoka
- Department of Biochemistry and Molecular Biology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba 271-8587, Japan
| | | | - Kazuko Kitayama
- Department of Dental and Medical Biochemistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Masami Kanawa
- Natural Science Center for Basic Research and Development, Hiroshima University, Hiroshima 734-8553, Japan
| | - Agung Sosiawan
- Department of Dental Public Health, Faculty of Dental Medicine, Airlangga University, Surabaya, East Java 60132, Indonesia
| | - Ketut Suardita
- Department of Conservative Dentistry, Faculty of Dental Medicine, Airlangga University, Surabaya, East Java 60132, Indonesia
| | - Fusanori Nishimura
- Department of Dental Science for Health Promotion, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Yukio Kato
- Department of Dental and Medical Biochemistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan.,Two Cells Co., Ltd., Hiroshima 734-0816, Japan
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31
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Yusof MFH, Zahari W, Hashim SNM, Osman ZF, Chandra H, Kannan TP, Noordin KBAA, Azlina A. Angiogenic and osteogenic potentials of dental stem cells in bone tissue engineering. J Oral Biol Craniofac Res 2018; 8:48-53. [PMID: 29556464 PMCID: PMC5854554 DOI: 10.1016/j.jobcr.2017.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 10/18/2017] [Indexed: 02/07/2023] Open
Abstract
Manipulation of dental stem cells (DSCs) using current technologies in tissue engineering unveil promising prospect in regenerative medicine. DSCs have shown to possess angiogenic and osteogenic potential in both in vivo and in vitro. Neural crest derived DSCs can successfully be isolated from various dental tissues, exploiting their intrinsic great differentiation potential. In this article, researcher team intent to review the characteristics of DSCs, with focus on their angiogenic and osteogenic differentiation lineage. Clinical data on DSCs are still lacking to prove their restorative abilities despite extensive contemporary literature, warranting research to further validate their application for bone tissue engineering.
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Affiliation(s)
- Muhammad Fuad Hilmi Yusof
- Basic Sciences and Oral Biology Unit, School of Dental Sciences, USM Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Wafa’ Zahari
- Basic Sciences and Oral Biology Unit, School of Dental Sciences, USM Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Siti Nurnasihah Md Hashim
- Basic Sciences and Oral Biology Unit, School of Dental Sciences, USM Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Zul Faizuddin Osman
- Basic Sciences and Oral Biology Unit, School of Dental Sciences, USM Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Hamshawagini Chandra
- Basic Sciences and Oral Biology Unit, School of Dental Sciences, USM Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Thirumulu Ponnuraj Kannan
- Basic Sciences and Oral Biology Unit, School of Dental Sciences, USM Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
- Human Genome Center, School of Medical Sciences, USM Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
| | | | - Ahmad Azlina
- Basic Sciences and Oral Biology Unit, School of Dental Sciences, USM Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
- Human Genome Center, School of Medical Sciences, USM Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
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32
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Zhang M, Jiang F, Zhang X, Wang S, Jin Y, Zhang W, Jiang X. The Effects of Platelet-Derived Growth Factor-BB on Human Dental Pulp Stem Cells Mediated Dentin-Pulp Complex Regeneration. Stem Cells Transl Med 2017; 6:2126-2134. [PMID: 29064632 PMCID: PMC5702518 DOI: 10.1002/sctm.17-0033] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 09/05/2017] [Indexed: 12/12/2022] Open
Abstract
Dentin‐pulp complex regeneration is a promising alternative treatment for the irreversible pulpitis caused by tooth trauma or dental caries. This process mainly relies on the recruitment of endogenous or the transplanted dental pulp stem cells (DPSCs) to guide dentin‐pulp tissue formation. Platelet‐derived growth factor (PDGF), a well‐known potent mitogenic, angiogenic, and chemoattractive agent, has been widely used in tissue regeneration. However, the mechanisms underlying the therapeutic effects of PDGF on dentin‐pulp complex regeneration are still unclear. In this study, we tested the effect of PDGF‐BB on dentin‐pulp tissue regeneration by establishing PDGF‐BB gene‐modified human dental pulp stem cells (hDPSCs) using a lentivirus. Our results showed that PDGF‐BB can significantly enhance hDPSC proliferation and odontoblastic differentiation. Furthermore, PDGF‐BB and vascular endothelial growth factor (VEGF) secreted by hDPSCs enhanced angiogenesis. The chemoattractive effect of PDGF‐BB on hDPSCs was also confirmed using a Transwell chemotactic migration model. We further determined that PDGF‐BB facilitates hDPSCs migration via the activation of the phosphatidylinositol 3 kinase (PI3K)/Akt signaling pathway. In vivo, CM‐DiI‐labeled hDPSCs were injected subcutaneously into mice, and our results showed that more labeled cells were recruited to the sites implanted with calcium phosphate cement scaffolds containing PDGF‐BB gene‐modified hDPSCs. Finally, the tissue‐engineered complexes were implanted subcutaneously in mice for 12 weeks, the Lenti‐PDGF group generated more dentin‐like mineralized tissue which showed positive staining for the DSPP protein, similar to tooth dentin tissue, and was surrounded by highly vascularized dental pulp‐like connective tissue. Taken together, our data demonstrated that the PDGF‐BB possesses a powerful function in prompting stem cell‐based dentin‐pulp tissue regeneration. Stem Cells Translational Medicine2017;6:2126–2134
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Affiliation(s)
- Maolin Zhang
- Department of Prosthodontics, Shanghai, People's Republic of China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, People's Republic of China
| | - Fei Jiang
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, People's Republic of China.,Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, People's Republic of China.,Department of Polyclinic, Affiliated Hospital of Stomatology, Nanjing, People's Republic of China
| | - Xiaochen Zhang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, People's Republic of China
| | - Shaoyi Wang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, People's Republic of China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, People's Republic of China
| | - Yuqin Jin
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, People's Republic of China
| | - Wenjie Zhang
- Department of Prosthodontics, Shanghai, People's Republic of China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, People's Republic of China
| | - Xinquan Jiang
- Department of Prosthodontics, Shanghai, People's Republic of China.,Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, People's Republic of China
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33
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The Angiogenic Potential of DPSCs and SCAPs in an In Vivo Model of Dental Pulp Regeneration. Stem Cells Int 2017; 2017:2582080. [PMID: 29018483 PMCID: PMC5605798 DOI: 10.1155/2017/2582080] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 07/04/2017] [Accepted: 07/13/2017] [Indexed: 12/22/2022] Open
Abstract
Adequate vascularization, a restricting factor for the survival of engineered tissues, is often promoted by the addition of stem cells or the appropriate angiogenic growth factors. In this study, human dental pulp stem cells (DPSCs) and stem cells from the apical papilla (SCAPs) were applied in an in vivo model of dental pulp regeneration in order to compare their regenerative potential and confirm their previously demonstrated paracrine angiogenic properties. 3D-printed hydroxyapatite scaffolds containing DPSCs and/or SCAPs were subcutaneously transplanted into immunocompromised mice. After twelve weeks, histological and ultrastructural analysis demonstrated the regeneration of vascularized pulp-like tissue as well as mineralized tissue formation in all stem cell constructs. Despite the secretion of vascular endothelial growth factor in vitro, the stem cell constructs did not display a higher vascularization rate in comparison to control conditions. Similar results were found after eight weeks, which suggests both osteogenic/odontogenic differentiation of the transplanted stem cells and the promotion of angiogenesis in this particular setting. In conclusion, this is the first study to demonstrate the successful formation of vascularized pulp-like tissue in 3D-printed scaffolds containing dental stem cells, emphasizing the promising role of this approach in dental tissue engineering.
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34
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Potential Therapeutic Strategy of Targeting Pulp Fibroblasts in Dentin-Pulp Regeneration. J Endod 2017; 43:S17-S24. [DOI: 10.1016/j.joen.2017.06.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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35
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Senoo K, Yamashiro K, Yamamoto T, Myokai F, Kawamura M, Takashiba S. Expression of optineurin isolated from rat-injured dental pulp and the effects on inflammatory signals in normal rat kidney cells. Odontology 2017; 106:135-144. [DOI: 10.1007/s10266-017-0314-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 06/04/2017] [Indexed: 01/14/2023]
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36
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Jearanaiphaisarn T, Sanharati T, Pavasant P, Nakalekha Limjeerajarus C. The effect of iloprost on cell proliferation and angiogenesis-related gene expression in human periodontal ligament cells. Odontology 2017; 106:11-18. [DOI: 10.1007/s10266-017-0307-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 04/03/2017] [Indexed: 01/03/2023]
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37
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Yasui T, Mabuchi Y, Morikawa S, Onizawa K, Akazawa C, Nakagawa T, Okano H, Matsuzaki Y. Isolation of dental pulp stem cells with high osteogenic potential. Inflamm Regen 2017; 37:8. [PMID: 29259707 PMCID: PMC5725894 DOI: 10.1186/s41232-017-0039-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 02/23/2017] [Indexed: 01/05/2023] Open
Abstract
Dental pulp stem cells/progenitor cells (DPSCs) can be easily obtained and can have excellent proliferative and mineralization potentials. Therefore, many studies have investigated the isolation and bone formation of DPSCs. In most previous reports, human DPSCs were traditionally isolated by exploiting their ability to adhere to plastic tissue culture dishes. DPSCs isolated by plastic adherence are frequently contaminated by other cells, which limits the ability to investigate their basic biology and regenerative properties. Additionally, the proliferative and osteogenic potentials vary depending on the isolated cells. It is very difficult to obtain cells of a sufficient quality to elicit the required effect upon transplantation. Considering clinical applications, stem cells used for regenerative medicine need to be purified in order to increase the efficiency of bone regeneration, and a stable supply of these cells must be generated. Here, we review the purification of DPSCs and studies of cranio-maxillofacial bone regeneration using these cells. Additionally, we introduce the prospective isolation of DPSCs using specific cell surface markers: low-affinity nerve growth factor and thymocyte antigen 1.
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Affiliation(s)
- Takazumi Yasui
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan.,Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan.,Department of Dentistry and Oral Surgery, Kawasaki Municipal Kawasaki Hospital, 12-1 Shinkawadori, Kawasaki-ku, Kawasaki, Kanagawa 210-0013 Japan
| | - Yo Mabuchi
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan.,Department of Biochemistry and Biophysics, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyo-ku, Tokyo, 113-8510 Japan
| | - Satoru Morikawa
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Katsuhiro Onizawa
- Department of Dentistry and Oral Surgery, Kawasaki Municipal Kawasaki Hospital, 12-1 Shinkawadori, Kawasaki-ku, Kawasaki, Kanagawa 210-0013 Japan
| | - Chihiro Akazawa
- Department of Biochemistry and Biophysics, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyo-ku, Tokyo, 113-8510 Japan
| | - Taneaki Nakagawa
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Yumi Matsuzaki
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan.,Department of Cancer Biology, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo, Shimane 693-8501 Japan
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Aksel H, Huang GTJ. Human and Swine Dental Pulp Stem Cells Form a Vascularlike Network after Angiogenic Differentiation in Comparison with Endothelial Cells: A Quantitative Analysis. J Endod 2017; 43:588-595. [PMID: 28258811 DOI: 10.1016/j.joen.2016.11.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/26/2016] [Accepted: 11/17/2016] [Indexed: 12/20/2022]
Abstract
INTRODUCTION The aim of this study was to quantify vascular network formation capacity after angiogenic induction of human and swine dental pulp stem cells (DPSCs) in comparison with endothelial cells. METHODS Primary human DPSCs or swine DPSCs were induced in endothelial growth medium for 7 days. The expression of the endothelial marker von Willebrand factor was determined by immunostaining. Induced DPSCs (iDPSCs) and noninduced DPSCs (niDPSCs) were seeded at different cell numbers onto Matrigel (BD Biosciences, San Jose, CA) for vascular network formation assays and analyzed after 4, 8, 12, and 18 hours in comparison with human microvascular endothelial cells (hMECs). Quantitative analysis of vascular tubule formation was performed using ImageJ software (National Institutes of Health, Bethesda, MD). The vascular network formation was also conducted by coculturing of niDPSCs and iDPSCs. RESULTS Von Willebrand factor was detected by immunofluorescence in both niDPSCs and iDPSCs (human and swine). Time-lapse microscopic observation showed that the vascular network was formed by iDPSCs but not niDPSCs. After 4 hours, iDPSCs showed vascular network formation, whereas niDPSCs started to aggregate and formed clusters. Human iDPSCs displayed a similar capacity to form vascular networks in Matrigel compared with hMECs based on quantitative analysis. Swine iDPSCs had a higher capacity compared with human iDPSCs or hMECs (P < .05) in forming the network structures including segments, nodes, and mesh. A coculture experiment showed that human niDPSCs colocalized on the angiogenic tubules and vascular networks that were formed by human iDPSCs. CONCLUSIONS Our findings indicate that iDPSCs in combination with their noninduced counterparts may be used as a future clinical strategy for enhancing angiogenesis during the process of pulp-dentin regeneration.
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Affiliation(s)
- Hacer Aksel
- Department of Bioscience Research, College of Dentistry, University of Tennessee Health Science Center, Memphis, Tennessee
| | - George T-J Huang
- Department of Bioscience Research, College of Dentistry, University of Tennessee Health Science Center, Memphis, Tennessee.
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Lee SI, Kim SY, Park KR, Kim EC. Baicalein Promotes Angiogenesis and Odontoblastic Differentiation via the BMP and Wnt Pathways in Human Dental Pulp Cells. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2016; 44:1457-1472. [DOI: 10.1142/s0192415x16500816] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Baicalein is an active flavonoid extracted from the root of Scutellaria baicalensis that has anticancer and anti-inflammatory properties; its effects on osteoblastic and angiogenic potential are controversial. The aim of this study was to investigate the effects of baicalein on odontoblastic differentiation and angiogenesis and the underlying mechanism in human dental pulp cells (HDPCs). Baicalein (1–10[Formula: see text][Formula: see text]M) had no cytotoxic effects and promoted alkaline phosphatase (ALP) activity, mineralization assayed by Alizarin Red-S staining, and the mRNA expression of marker genes, in a concentration-dependent manner. In addition, baicalein upregulated angiogenic factors and increased in vitro capillary-like tube formation. Moreover, baicalein upregulated bone morphogenetic protein (BMP)-2 mRNA and phosphorylation of Smad 1/5/8 and Wnt ligand mRNA, glycogen synthase kinase-3, and nuclear [Formula: see text]-catenin. The odontogenic and angiogenic effects of baicalein were abolished by the BMP antagonist noggin and the Wnt/[Formula: see text]-catenin receptor antagonist DKK-1. These results demonstrate that baicalein promoted odontoblastic differentiation and angiogenesis of HDPCs by activating the BMP and Wnt/[Formula: see text]-catenin signal pathways. Our findings suggest that baicalein may contribute to dental pulp repair and regenerative endodontics.
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Affiliation(s)
- Sang-Im Lee
- Department of Dental Hygiene, School of Health Sciences, Dankook University, Cheonan, Republic of Korea
| | - Sun-Young Kim
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Kyung-Ran Park
- Department of Oral and Maxillofacial Pathology and Research Center for Tooth and Periodontal Regeneration (MRC), School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Eun-Cheol Kim
- Department of Oral and Maxillofacial Pathology and Research Center for Tooth and Periodontal Regeneration (MRC), School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
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Rombouts C, Jeanneau C, Camilleri J, Laurent P, About I. Characterization and angiogenic potential of xenogeneic bone grafting materials: Role of periodontal ligament cells. Dent Mater J 2016; 35:900-907. [PMID: 27680032 DOI: 10.4012/dmj.2016-005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Adequate revascularization is a prerequisite for successful healing of periodontal bone defects. This study characterized three different xenogeneic bone grafting materials: Gen-Os of equine and porcine origins, and anorganic Bio-Oss. We also investigated their angiogenic potential. All materials were composed of poorly crystalline calcium oxide phosphate, with Bio-Oss exhibiting a carbonated phase and larger particle size and both Gen-Os showing the presence of collagen. Both Gen-Os materials significantly enhanced vascular endothelial growth factor (VEGF) secretion by PDL cells. A significant increase in endothelial cell proliferation was observed in cultures with both Gen-Os conditioned media, but not with that of Bio-Oss. Finally, angiogenesis was stimulated by both Gen-Os conditioned media as demonstrated by an increased formation of capillary-like structures. Taken together, these findings indicate an enhanced angiogenic potential of both Gen-Os bone grafting materials when applied on PDL cells, most likely by increasing VEGF production.
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The Neurovascular Properties of Dental Stem Cells and Their Importance in Dental Tissue Engineering. Stem Cells Int 2016; 2016:9762871. [PMID: 27688777 PMCID: PMC5027319 DOI: 10.1155/2016/9762871] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 08/01/2016] [Indexed: 12/16/2022] Open
Abstract
Within the field of tissue engineering, natural tissues are reconstructed by combining growth factors, stem cells, and different biomaterials to serve as a scaffold for novel tissue growth. As adequate vascularization and innervation are essential components for the viability of regenerated tissues, there is a high need for easily accessible stem cells that are capable of supporting these functions. Within the human tooth and its surrounding tissues, different stem cell populations can be distinguished, such as dental pulp stem cells, stem cells from human deciduous teeth, stem cells from the apical papilla, dental follicle stem cells, and periodontal ligament stem cells. Given their straightforward and relatively easy isolation from extracted third molars, dental stem cells (DSCs) have become an attractive source of mesenchymal-like stem cells. Over the past decade, there have been numerous studies supporting the angiogenic, neuroprotective, and neurotrophic effects of the DSC secretome. Together with their ability to differentiate into endothelial cells and neural cell types, this makes DSCs suitable candidates for dental tissue engineering and nerve injury repair.
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Chmilewsky F, Jeanneau C, Dejou J, About I. Sources of dentin-pulp regeneration signals and their modulation by the local microenvironment. J Endod 2016; 40:S19-25. [PMID: 24698688 DOI: 10.1016/j.joen.2014.01.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Many aspects of dentin pulp tissue regeneration have been investigated, and it has been shown that dentin pulp has a high regeneration capacity. This seems to be because of the presence of progenitor cells and inductive regeneration signals from different origins. These signals can be liberated after the acidic dissolution of carious dentin as well as from pulp fibroblasts and endothelial cells in cases of traumatic injury. Thus, both carious lesions and pulp cells provide the required mediators for complete dentin-pulp regeneration including reparative dentin secretion, angiogenesis, and innervation. Additionally, all dentin pulp insults including carious "infection," traumatic injuries, application of restorative materials on the injured dentin pulp, and subsequent apoptosis are known activators of the complement system. This activation leads to the production of several biologically active fragments responsible for the vascular modifications and the attraction of immune cells to the inflammatory/injury site. Among these, C5a is involved in the recruitment of pulp progenitor cells, which express the C5a receptor. Thus, in addition to dentin and pulp cells, plasma should be considered as an additional source of regeneration signals.
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Affiliation(s)
- Fanny Chmilewsky
- Aix Marseille Université, Centre National de la Recherche Scientifique, Institut des Sciences du Movement Unité Mixte de Recherche 7287, Marseille, France
| | - Charlotte Jeanneau
- Aix Marseille Université, Centre National de la Recherche Scientifique, Institut des Sciences du Movement Unité Mixte de Recherche 7287, Marseille, France
| | - Jacques Dejou
- Aix Marseille Université, Centre National de la Recherche Scientifique, Institut des Sciences du Movement Unité Mixte de Recherche 7287, Marseille, France; Service d'Odontologie, Assistance Publique-Hopitaux de Marseille, Hôpital Timone, Marseille, France
| | - Imad About
- Aix Marseille Université, Centre National de la Recherche Scientifique, Institut des Sciences du Movement Unité Mixte de Recherche 7287, Marseille, France.
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Silva LB, Neto APDS, Pacheco RGP, Júnior SA, de Menezes RF, Carneiro VSM, Araújo NC, da Silveira MMF, de Albuquerque DS, Gerbi MEMDM, Álvares PR, de Arruda JAA, Sobral APV. The Promising Applications of Stem Cells in the Oral Region: Literature Review. Open Dent J 2016; 10:227-35. [PMID: 27386008 PMCID: PMC4911749 DOI: 10.2174/1874210601610010227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 04/08/2016] [Accepted: 04/12/2016] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION For a long time researchers have tried to find out a way to grow tissues back to the human body in order to solve transplantation problems by offering the unique opportunity to have their organs back, working properly, in search of life dignity. LITERATURE REVIEW Stem cells seem to be present in many other tissues than researchers had once thought; and in some specific sites they can be easily collected, without the need of expensive interventions. The oral cavity is one of these regions where their collection can be accomplished, with plenty of accessible sites enriched with these precious cells. AIM The aim of this literature review is to research where in the mouth can scientists find stem cells to be used in the near future. KEY-MESSAGE The aim of this literature review is to research where stem cells can be found and collected in the oral cavity.
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Affiliation(s)
- Luciano Barreto Silva
- Department of Operative Dentistry and Endodontics, Dental College of Pernambuco Camaragibe, Pernambuco, Brazil
| | | | - Rachel Gomes Pelozo Pacheco
- Department of Operative Dentistry and Endodontics, Dental College of Pernambuco Camaragibe, Pernambuco, Brazil
| | | | - Rebeca Ferraz de Menezes
- Department of Operative Dentistry and Endodontics, Dental College of Pernambuco Camaragibe, Pernambuco, Brazil
| | | | - Natália Costa Araújo
- Department of Operative Dentistry and Endodontics, Dental College of Pernambuco Camaragibe, Pernambuco, Brazil
| | | | | | | | - Pamella Recco Álvares
- Department of Operative Dentistry and Endodontics, Dental College of Pernambuco Camaragibe, Pernambuco, Brazil
| | | | - Ana Paula Veras Sobral
- Department of Operative Dentistry and Endodontics, Dental College of Pernambuco Camaragibe, Pernambuco, Brazil
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Caviedes-Bucheli J, Gomez-Sosa JF, Azuero-Holguin MM, Ormeño-Gomez M, Pinto-Pascual V, Munoz HR. Angiogenic mechanisms of human dental pulp and their relationship with substance P expression in response to occlusal trauma. Int Endod J 2016; 50:339-351. [PMID: 26953220 DOI: 10.1111/iej.12627] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 03/03/2016] [Indexed: 12/16/2022]
Abstract
Angiogenesis is the formation of new blood vessels based on a pre-existing vasculature. It comprises two processes, sprouting of endothelial cells and the division of vessels due to abnormal growth of the microvasculature. It has been demonstrated that substance P (SP) can induce angiogenesis either by modulating endothelial cell growth (direct mechanism) or by attracting cells with angiogenic potential to the injury site (indirect mechanism). Therefore, the purpose of this article is to review the angiogenic mechanisms that regulate mineralized tissue formation in human dental pulp tissue and their relationship with SP expression as a defence response to stimuli such as the masticatory function and occlusal trauma. Articles included in this review were searched in PubMed, Scopus and ISI Web of Science databases, combining the following keywords: human dentine pulp, angiogenesis, angiogenic growth factors, neuropeptides, substance P, neurogenic inflammation, dentine matrix, dentinogenesis, occlusal trauma and dental occlusion. It is concluded that human dental pulp tissue responds to occlusal trauma and masticatory function with a neurogenic inflammatory phenomenon in which SP plays an important role in the direct and indirect mechanisms of angiogenesis by the action evoked via NK1 receptors at different cells, such as fibroblasts, endothelial and inflammatory cells, leading to new blood vessel formation which are needed to stimulate mineralized tissue formation as a defence mechanism.
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Affiliation(s)
- J Caviedes-Bucheli
- Centro de Investigaciones Odontologicas, Pontificia Universidad Javeriana, Bogota, Colombia
| | - J F Gomez-Sosa
- Department of Endodontics, Universidad Central de Venezuela, Caracas, Venezuela
| | - M M Azuero-Holguin
- Centro de Investigaciones Odontologicas, Pontificia Universidad Javeriana, Bogota, Colombia
| | - M Ormeño-Gomez
- Centro de Investigaciones Odontologicas, Pontificia Universidad Javeriana, Bogota, Colombia
| | - V Pinto-Pascual
- Centro de Investigaciones Odontologicas, Pontificia Universidad Javeriana, Bogota, Colombia
| | - H R Munoz
- Postgraduate Department of Endodontics, Universidad de San Carlos de Guatemala, Guatemala
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Chang SW, Kim JY, Kim MJ, Kim GH, Yi JK, Lee DW, Kum KY, Kim EC. Combined effects of mineral trioxide aggregate and human placental extract on rat pulp tissue and growth, differentiation and angiogenesis in human dental pulp cells. Acta Odontol Scand 2016; 74:298-306. [PMID: 26807656 DOI: 10.3109/00016357.2015.1120882] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the combined effects of mineral trioxide aggregate (MTA) and human placental extract (HPE) on cell growth, differentiation and in vitro angiogenesis of human dental pulp cells (HDPCs) and to identify underlying signal transduction mechanisms. In vivo dental pulp responses in rats for a pulp-capping agent were examined. MATERIALS AND METHODS MTS assay. ALP activity test, alizarin red S staining and RT-PCR for marker genes were carried out to evaluate cell growth and differentiation. HUVEC migration, mRNA expression and capillary tube formation were measured to evaluate angiogenesis. Signal transduction was analysed using Western blotting and confocal microscopy. The pulps of rat maxillary first molars were exposed and capped with either MTA or MTA plus HPE. Histologic observation and scoring were performed. RESULTS Compared to treatment of HDPCs with either HPE or MTA alone, the combination of HPE and MTA increased cell growth, ALP activity, mineralized nodules and expression of marker mRNAs. Combination HPE and MTA increased migration, capillary tube formation and angiogenic gene expression compared with MTA alone. Activation of Akt, mammalian target of rapamycin (mTOR), p38, JNK and ERK MAPK, Akt, and NF-κB were significantly increased by combining HPE and MTA compared with MTA alone. Pulp capping with MTA plus HPE in rats showed superior dentin bridge formation, odontoblastic layers and dentinal tubules and lower inflammatory cell response, compared to the MTA alone group. CONCLUSIONS This study demonstrates for the first time that the use of MTA with HPE promotes cell growth, differentiation and angiogenesis in HDPCs, which were associated with mTOR, MAPK and NF-κB pathways. Direct pulp capping with HPE plus MTA showed superior results when compared with MTA alone. Thus, the combination of MTA and HPE may be useful for regenerative endodontics.
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Affiliation(s)
| | - Ji-Youn Kim
- b Department of Oral and Maxillofacial Pathology and Research Center for Tooth and Periodontal Regeneration (MRC )
| | - Mi-Joo Kim
- b Department of Oral and Maxillofacial Pathology and Research Center for Tooth and Periodontal Regeneration (MRC )
| | - Ga-Hyun Kim
- b Department of Oral and Maxillofacial Pathology and Research Center for Tooth and Periodontal Regeneration (MRC )
| | | | - Deok-Won Lee
- c Department of Oral and Maxillofacial Surgery School of Dentistry , Kyung Hee University , Seoul , Republic of Korea
| | - Kee-Yeon Kum
- d Department of Conservative Dentistry , Seoul National University Dental Hospital , Seoul , Republic of Korea
| | - Eun-Cheol Kim
- b Department of Oral and Maxillofacial Pathology and Research Center for Tooth and Periodontal Regeneration (MRC )
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QIN H, YANG Z, LI L, YANG X, LIU J, CHEN X, YU X. A promising scaffold with excellent cytocompatibility and pro-angiogenesis action for dental tissue engineering: Strontium-doped calcium polyphosphate. Dent Mater J 2016; 35:241-9. [PMID: 27041014 DOI: 10.4012/dmj.2015-272] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Huanhuan QIN
- College of Polymer Science and Engineering, Sichuan University
| | - Zhouyuan YANG
- Department of Orthopaedics, West China Hospital ,Sichuan University
| | - Li LI
- Department of Oncology, the 452 Hospital of Chinese PLA
| | - Xu YANG
- College of Polymer Science and Engineering, Sichuan University
| | - Jingwang LIU
- College of Polymer Science and Engineering, Sichuan University
| | - Xi CHEN
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy
| | - Xixun YU
- College of Polymer Science and Engineering, Sichuan University
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Regenerative Applications Using Tooth Derived Stem Cells in Other Than Tooth Regeneration: A Literature Review. Stem Cells Int 2015; 2016:9305986. [PMID: 26798366 PMCID: PMC4699044 DOI: 10.1155/2016/9305986] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 09/03/2015] [Accepted: 09/08/2015] [Indexed: 12/13/2022] Open
Abstract
Tooth derived stem cells or dental stem cells are categorized according to the location from which they are isolated and represent a promising source of cells for regenerative medicine. Originally, as one kind of mesenchymal stem cells, they are considered an alternative of bone marrow stromal cells. They share many commonalties but maintain differences. Considering their original function in development and the homeostasis of tooth structures, many applications of these cells in dentistry have aimed at tooth structure regeneration; however, the application in other than tooth structures has been attempted extensively. The availability from discarded or removed teeth can be an innate benefit as a source of autologous cells. Their origin from the neural crest results in exploitation of neurological and numerous other applications. This review briefly highlights current and future perspectives of the regenerative applications of tooth derived stem cells in areas beyond tooth regeneration.
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Is Pulp Inflammation a Prerequisite for Pulp Healing and Regeneration? Mediators Inflamm 2015; 2015:347649. [PMID: 26538825 PMCID: PMC4619968 DOI: 10.1155/2015/347649] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 06/05/2015] [Accepted: 07/14/2015] [Indexed: 12/16/2022] Open
Abstract
The importance of inflammation has been underestimated in pulpal healing, and in the past, it has been considered only as an undesirable effect. Associated with moderate inflammation, necrosis includes pyroptosis, apoptosis, and nemosis. There are now evidences that inflammation is a prerequisite for pulp healing, with series of events ahead of regeneration. Immunocompetent cells are recruited in the apical part. They slide along the root and migrate toward the crown. Due to the high alkalinity of the capping agent, pulp cells display mild inflammation, proliferate, and increase in number and size and initiate mineralization. Pulp fibroblasts become odontoblast-like cells producing type I collagen, alkaline phosphatase, and SPARC/osteonectin. Molecules of the SIBLING family, matrix metalloproteinases, and vascular and nerve mediators are also implicated in the formation of a reparative dentinal bridge, osteo/orthodentin closing the pulp exposure. Beneath a calciotraumatic line, a thin layer identified as reactionary dentin underlines the periphery of the pulp chamber. Inflammatory and/or noninflammatory processes contribute to produce a reparative dentinal bridge closing the pulp exposure, with minute canaliculi and large tunnel defects. Depending on the form and severity of the inflammatory and noninflammatory processes, and according to the capping agent, pulp reactions are induced specifically.
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Chang SW, Bae WJ, Yi JK, Lee S, Lee DW, Kum KY, Kim EC. Odontoblastic Differentiation, Inflammatory Response, and Angiogenic Potential of 4 Calcium Silicate–based Cements: Micromega MTA, ProRoot MTA, RetroMTA, and Experimental Calcium Silicate Cement. J Endod 2015; 41:1524-9. [DOI: 10.1016/j.joen.2015.04.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 04/02/2015] [Accepted: 04/13/2015] [Indexed: 12/30/2022]
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Strojny C, Boyle M, Bartholomew A, Sundivakkam P, Alapati S. Interferon Gamma-treated Dental Pulp Stem Cells Promote Human Mesenchymal Stem Cell Migration In Vitro. J Endod 2015; 41:1259-64. [PMID: 26051078 DOI: 10.1016/j.joen.2015.02.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 01/15/2015] [Accepted: 02/14/2015] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Chronic inflammation disrupts dental pulp regeneration by disintegrating the recruitment process of progenitors for repair. Bone marrow-derived mesenchymal stem cells (BM-MSCs) share the common features with dental pulp stem cells (DPSCs). The aim of the study was to investigate the migration of BM-MSCs toward DPSCs in response to inflammatory chemoattractants. Additionally, our studies also delineated the signaling mechanisms from BM-MSCs in mediating the proliferation and differentiation of DPSCs in vitro. METHODS Human DPSCs and BM-MSCs between passages 2 and 4 were used and were grown in odontogenic differentiation medium. Mineralization was determined by alizarin red staining analysis. Migration was assessed using crystal violet staining in cells grown in Boyden chamber Transwell inserts (Corning Inc Foundation, Tewksbury, MA). The mineralization potential of DPSCs was evaluated using alkaline phosphatase activity assay. Real-time polymerase chain reaction analysis was performed to assess the gene expression profile of chemokine (C-X-C motif) ligand (Cxcl) 3, 5, 6, 10, 11, 12, 14, and 16; stromal cell-derived factor (SDF) α; vascular endothelial growth factor; and fibroblast growth factor. RESULTS Interferon gamma (FN-γ) treatment significantly abrogated the differentiation potential of DPSCs as shown by using alizarin red and alkaline phosphatase activity analysis. An increase in the migration of BM-MSCs was documented when cocultured with IFN-γ-treated DPSCs. RNA expression studies showed an increase in the levels of Cxcl6 and Cxcl12 in BM-MSCs when cocultured with IFN-γ-treated DPSCs. Additionally, an up-regulation of proangiogenic factors vascular endothelial growth factor and fibroblast growth factor were observed in DPSCs exposed to IFN-γ. CONCLUSIONS Our findings indicate that inflamed IFN-γ-treated DPSCs release factors (presumably Cxcl6 and 12) that contribute to the homing of MSCs. This model might provide a potential research tool for studying MSC-DPSC cross talk and for future studies involving the recruitment and sustainability of progenitor stem cells sustaining the inflammatory cascade to treat pulp inflammation.
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Affiliation(s)
- Chelsee Strojny
- Department of Endodontics, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois
| | - Michael Boyle
- Department of Endodontics, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois
| | - Amelia Bartholomew
- Department of Surgery, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Premanand Sundivakkam
- Department of Endodontics, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois; Department of Surgery, College of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Satish Alapati
- Department of Endodontics, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois; Department of Surgery, College of Medicine, University of Illinois at Chicago, Chicago, Illinois.
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