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Chernova UV, Varakuta EY, Koniaeva AD, Leyman AE, Sagdullaeva SA, Plotnikov E, Melnik EY, Tran TH, Rutkowski S, Kudryavtseva VL, Buznik VM, Bolbasov E. Piezoelectric and Dielectric Electrospun Fluoropolymer Membranes for Oral Mucosa Regeneration: A Comparative Study. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38607352 DOI: 10.1021/acsami.4c01867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Wound healing of the oral mucosa is an urgent problem in modern dental surgical practice. This research article presents and compares the findings of the investigations of the structural, physicochemical, and biological characteristics of two types of polymeric membranes used for the regeneration of oral mucosa. The membranes were prepared from poly(tetrafluoroethylene) (PTFE) and a copolymer of vinylidene fluoride and tetrafluoroethylene (VDF-TeFE) and analyzed via scanning electron microscopy, atomic force microscopy, X-ray diffraction analysis, and Fourier transform infrared spectroscopy. Investigation results obtained indicate that both types of membranes are composed of thin fibers: (0.57 ± 0.25) μm for PTFE membranes and (0.43 ± 0.14) μm for VDF-TeFE membranes. Moreover, the fibers of VDF-TeFE membranes exhibit distinct piezoelectric properties, which are confirmed by piezoresponse force microscopy and X-ray diffraction. Both types of membranes are hydrophobic: (139.7 ± 2.5)° for PTFE membranes and (133.5 ± 2.0)° for VDF-TeFE membranes. In vitro assays verify that both membrane types did not affect the growth and division of mice fibroblasts of the 3T3-L1 cell line, with a cell viability in the range of 88-101%. Finally, in vivo comparative experiments carried out using Wistar rats demonstrate that the piezoelectric VDF-TeFE membranes have a high ability to regenerate oral mucosa.
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Affiliation(s)
- Ulyana V Chernova
- School of Nuclear Science & Engineering, National Research Tomsk Polytechnic University, I-634050 Tomsk, Russian Federation
| | - Elena Yu Varakuta
- The Human Anatomy Department, Siberian State Medical University, I-634050 Tomsk, Russian Federation
| | - Anastasiia D Koniaeva
- The Human Anatomy Department, Siberian State Medical University, I-634050 Tomsk, Russian Federation
| | - Arina E Leyman
- The Human Anatomy Department, Siberian State Medical University, I-634050 Tomsk, Russian Federation
| | - Sofia A Sagdullaeva
- The Human Anatomy Department, Siberian State Medical University, I-634050 Tomsk, Russian Federation
| | - Evgenii Plotnikov
- Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, I-634050 Tomsk, Russian Federation
| | - Evgeniy Yu Melnik
- Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, I-634050 Tomsk, Russian Federation
| | - Tuan-Hoang Tran
- Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, I-634050 Tomsk, Russian Federation
| | - Sven Rutkowski
- Weinberg Research Center, School of Nuclear Science & Engineering, National Research Tomsk Polytechnic University, I-634050 Tomsk, Russian Federation
| | - Valeriya L Kudryavtseva
- School of Engineering and Materials Science, Queen Mary University of London, E14NS London, United Kingdom
| | - Vyacheslav M Buznik
- Faculty of Chemistry, Tomsk State University, I-634050 Tomsk, Russian Federation
| | - Evgeniy Bolbasov
- School of Nuclear Science & Engineering, National Research Tomsk Polytechnic University, I-634050 Tomsk, Russian Federation
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Anselmi C, Mendes Soares IP, Mota RLM, Leite ML, Ribeiro RADO, Fernandes LDO, Bottino MC, de Souza Costa CA, Hebling J. Functionalization of PCL-Based Fiber Scaffolds with Different Sources of Calcium and Phosphate and Odontogenic Potential on Human Dental Pulp Cells. J Funct Biomater 2024; 15:97. [PMID: 38667554 PMCID: PMC11051160 DOI: 10.3390/jfb15040097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/03/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
This study investigated the incorporation of sources of calcium, phosphate, or both into electrospun scaffolds and evaluated their bioactivity on human dental pulp cells (HDPCs). Additionally, scaffolds incorporated with calcium hydroxide (CH) were characterized for degradation, calcium release, and odontogenic differentiation by HDPCs. Polycaprolactone (PCL) was electrospun with or without 0.5% w/v of calcium hydroxide (PCL + CH), nano-hydroxyapatite (PCL + nHA), or β-glycerophosphate (PCL + βGP). SEM/EDS analysis confirmed fibrillar morphology and particle incorporation. HDPCs were cultured on the scaffolds to assess cell viability, adhesion, spreading, and mineralized matrix formation. PCL + CH was also evaluated for gene expression of odontogenic markers (RT-qPCR). Data were submitted to ANOVA and Student's t-test (α = 5%). Added CH increased fiber diameter and interfibrillar spacing, whereas βGP decreased both. PCL + CH and PCL + nHA improved HDPC viability, adhesion, and proliferation. Mineralization was increased eightfold with PCL + CH. Scaffolds containing CH gradually degraded over six months, with calcium release within the first 140 days. CH incorporation upregulated DSPP and DMP1 expression after 7 and 14 days. In conclusion, CH- and nHA-laden PCL fiber scaffolds were cytocompatible and promoted HDPC adhesion, proliferation, and mineralized matrix deposition. PCL + CH scaffolds exhibit a slow degradation profile, providing sustained calcium release and stimulating HDPCs to upregulate odontogenesis marker genes.
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Affiliation(s)
- Caroline Anselmi
- Department of Morphology, Orthodontics, and Pediatric Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara 14801-385, SP, Brazil; (C.A.); (R.L.M.M.)
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (I.P.M.S.); (M.C.B.)
| | - Igor Paulino Mendes Soares
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (I.P.M.S.); (M.C.B.)
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara 14801-385, SP, Brazil;
| | - Rafaella Lara Maia Mota
- Department of Morphology, Orthodontics, and Pediatric Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara 14801-385, SP, Brazil; (C.A.); (R.L.M.M.)
| | - Maria Luísa Leite
- Department of Oral Health Sciences, Faculty of Dentistry, The University of British Columbia (UBC), Vancouver, BC V6T 1Z4, Canada;
| | - Rafael Antonio de Oliveira Ribeiro
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara 14801-385, SP, Brazil;
| | - Lídia de Oliveira Fernandes
- Department of Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara 14801-385, SP, Brazil;
| | - Marco C. Bottino
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; (I.P.M.S.); (M.C.B.)
| | - Carlos Alberto de Souza Costa
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University (UNESP), Araraquara 14801-385, SP, Brazil;
| | - Josimeri Hebling
- Department of Morphology, Orthodontics, and Pediatric Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara 14801-385, SP, Brazil; (C.A.); (R.L.M.M.)
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Ko MJ, Kim MS, Lee HS, Nam OH, Chae YK, Choi SC. Effects of Doxycycline-Loaded NO-Releasing Nanomatrix Gel on Delayed Replanted of Rat Molar. Gels 2024; 10:213. [PMID: 38667632 PMCID: PMC11049325 DOI: 10.3390/gels10040213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/06/2024] [Accepted: 03/14/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND/AIM Tooth avulsion and delayed replantation may cause inflammatory responses and root resorption of the tooth. The aim of this study is to investigate the effect of a doxycycline-loaded nitric oxide-releasing nanomatrix (DN) gel on the delayed replantation of avulsed rat teeth, with a focus on assessing the gel's potential to promote regeneration and inhibit complications associated with the replantation process. MATERIALS AND METHODS Twenty-four right maxillary first molars from male Sprague-Dawley rats were atraumatically extracted using sterile extraction forceps. The molars were dried for 1 h at room temperature (approximately 23 °C) and divided into four groups according to the root conditioning methods after extra-alveolar 60-min drying: Group 1, no root conditioning treatment prior to replantation; Group 2, soaking in 2% NaF solution for 5 min before replantation; Group 3, 5-min soaking in NO gel and injection of the gel into the alveolar socket; Group 4, 5-min soaking in DN gel and injection of the gel into the alveolar socket before replantation. The animals were euthanized four weeks after the operation and the specimens were evaluated histologically. RESULTS The use of NO gel alone showed better anti-inflammatory and periodontal effects than the control group, but it did not show a significant effect compared to the group using NaF. When using NO gel loaded with doxycycline, it showed a significant anti-inflammatory effect compared to the control group and showed a similar inhibitory effect to the group using NaF. CONCLUSIONS Within the limits of this study, in delayed replantation situations, the control of inflammatory resorption and replacement resorption is an important factor for achieving a better prognosis of replanted teeth. Root surface treatment with DN gel decreased root resorption after delayed replantation.
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Affiliation(s)
- Mi Ja Ko
- Children Loving Dental Clinic, Seosan 31978, Republic of Korea;
| | - Mi Sun Kim
- Department of Pediatric Dentistry, College of Dentistry, Kyung Hee University, Kyung Hee University Hospital at Gangdong, Seoul 05278, Republic of Korea;
| | - Hyo-Seol Lee
- Department of Pediatric Dentistry, College of Dentistry, Kyung Hee University, Kyung Hee University Medical Center, Seoul 02447, Republic of Korea; (H.-S.L.)
| | - Ok Hyung Nam
- Department of Pediatric Dentistry, College of Dentistry, Kyung Hee University, Kyung Hee University Medical Center, Seoul 02447, Republic of Korea; (H.-S.L.)
| | - Yong Kwon Chae
- Department of Pediatric Dentistry, Kyung Hee University Medical Center, Seoul 02447, Republic of Korea;
| | - Sung Chul Choi
- Department of Pediatric Dentistry, College of Dentistry, Kyung Hee University, Kyung Hee University Medical Center, Seoul 02447, Republic of Korea; (H.-S.L.)
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Salehi Abar E, Vandghanooni S, Torab A, Jaymand M, Eskandani M. A comprehensive review on nanocomposite biomaterials based on gelatin for bone tissue engineering. Int J Biol Macromol 2024; 254:127556. [PMID: 37884249 DOI: 10.1016/j.ijbiomac.2023.127556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 10/09/2023] [Accepted: 10/18/2023] [Indexed: 10/28/2023]
Abstract
The creation of a suitable scaffold is a crucial step in the process of bone tissue engineering (BTE). The scaffold, acting as an artificial extracellular matrix, plays a significant role in determining the fate of cells by affecting their proliferation and differentiation in BTE. Therefore, careful consideration should be given to the fabrication approach and materials used for scaffold preparation. Natural polypeptides such as gelatin and collagen have been widely used for this purpose. The unique properties of nanoparticles, which vary depending on their size, charge, and physicochemical properties, have demonstrated potential in solving various challenges encountered in BTE. Therefore, nanocomposite biomaterials consisting of polymers and nanoparticles have been extensively used for BTE. Gelatin has also been utilized in combination with other nanomaterials to apply for this purpose. Composites of gelatin with various types of nanoparticles are particularly promising for creating scaffolds with superior biological and physicochemical properties. This review explores the use of nanocomposite biomaterials based on gelatin and various types of nanoparticles together for applications in bone tissue engineering.
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Affiliation(s)
- Elaheh Salehi Abar
- Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran; Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Somayeh Vandghanooni
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Torab
- Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Jaymand
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Morteza Eskandani
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
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Muallah D, Matschke J, Kappler M, Kroschwald LM, Lauer G, Eckert AW. Dental Pulp Stem Cells for Salivary Gland Regeneration-Where Are We Today? Int J Mol Sci 2023; 24:ijms24108664. [PMID: 37240009 DOI: 10.3390/ijms24108664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/02/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Xerostomia is the phenomenon of dry mouth and is mostly caused by hypofunction of the salivary glands. This hypofunction can be caused by tumors, head and neck irradiation, hormonal changes, inflammation or autoimmune disease such as Sjögren's syndrome. It is associated with a tremendous decrease in health-related quality of life due to impairment of articulation, ingestion and oral immune defenses. Current treatment concepts mainly consist of saliva substitutes and parasympathomimetic drugs, but the outcome of these therapies is deficient. Regenerative medicine is a promising approach for the treatment of compromised tissue. For this purpose, stem cells can be utilized due to their ability to differentiate into various cell types. Dental pulp stem cells are adult stem cells that can be easily harvested from extracted teeth. They can form tissues of all three germ layers and are therefore becoming more and more popular for tissue engineering. Another potential benefit of these cells is their immunomodulatory effect. They suppress proinflammatory pathways of lymphocytes and could therefore probably be used for the treatment of chronic inflammation and autoimmune disease. These attributes make dental pulp stem cells an interesting tool for the regeneration of salivary glands and the treatment of xerostomia. Nevertheless, clinical studies are still missing. This review will highlight the current strategies for using dental pulp stem cells in the regeneration of salivary gland tissue.
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Affiliation(s)
- David Muallah
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20251 Hamburg, Germany
| | - Jan Matschke
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine "Carl Gustav Carus", Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany
| | - Matthias Kappler
- Department of Oral and Maxillofacial Plastic Surgery, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany
| | - Lysann Michaela Kroschwald
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine "Carl Gustav Carus", Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany
- Center for Translational Bone, Joint and Soft Tissue Research, University Hospital "Carl Gustav Carus", Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany
| | - Günter Lauer
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine "Carl Gustav Carus", Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany
| | - Alexander W Eckert
- Department of Cranio Maxillofacial Surgery, Paracelsus Medical University, Breslauer Straße 201, 90471 Nuremberg, Germany
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Holiel AA, Mustafa HM, Sedek EM. Biodegradation of an injectable treated dentin matrix hydrogel as a novel pulp capping agent for dentin regeneration. BMC Oral Health 2023; 23:126. [PMID: 36841767 PMCID: PMC9960635 DOI: 10.1186/s12903-023-02831-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 02/22/2023] [Indexed: 02/27/2023] Open
Abstract
BACKGROUND A novel injectable mixture termed treated dentin matrix hydrogel (TDMH) has been introduced for restoring dentin defect in DPC. However, no study evaluated its physiological biodegradation. Therefore, the present study aimed to assess scaffold homogeneity, mechanical properties and biodegradability in vitro and in vivo and the regenerated dentin induced by TDMH as a novel pulp capping agent in human permanent teeth. METHODS Three TDMH discs were weighted, and dry/wet ratios were calculated in four slices from each disc to evaluate homogeneity. Hydrogel discs were also analyzed in triplicate to measure the compressive strength using a universal testing machine. The in vitro degradation behavior of hydrogel in PBS at 37 °C for 2 months was also investigated by monitoring the percent weight change. Moreover, 20 intact fully erupted premolars were included for assessment of TDMH in vivo biodegradation when used as a novel injectable pulp capping agent. The capped teeth were divided into four equal groups according to extraction interval after 2-, 8-, 12- and 16-weeks, stained with hematoxylin-eosin for histological and histomorphometric evaluation. Statistical analysis was performed using F test (ANOVA) and post hoc test (p = 0.05). RESULTS No statistical differences among hydrogel slices were detected with (p = 0.192) according to homogeneity. TDMH compression modulus was (30.45 ± 1.11 kPa). Hydrogel retained its shape well up to 4 weeks and after 8 weeks completely degraded. Histological analysis after 16 weeks showed a significant reduction in TDMH area and a simultaneous significant increase in the new dentin area. The mean values of TDMH were 58.8% ± 5.9 and 9.8% ± 3.3 at 2 and 16 weeks, while the new dentin occupied 9.5% ± 2.8 at 2 weeks and 82.9% ± 3.8 at 16 weeks. CONCLUSIONS TDMH was homogenous and exhibited significant stability and almost completely recovered after excessive compression. TDMH generally maintained their bulk geometry throughout 7 weeks. The in vivo response to TDMH was characterized by extensive degradation of the hydrogel and dentin matrix particles and abundant formation of new dentin. The degradation rate of TDMH matched the rate of new dentin formation. TRIAL REGISTRATION PACTR201901866476410: 30/1/2019.
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Affiliation(s)
- Ahmed A Holiel
- Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
| | - Hossam M Mustafa
- Oral Biology Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - Eman M Sedek
- Dental Biomaterials Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
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Inada Y, Takabatake K, Tsujigiwa H, Nakano K, Shan Q, Piao T, Chang A, Kawai H, Nagatsuka H. Novel Artificial Scaffold for Bone Marrow Regeneration: Honeycomb Tricalcium Phosphate. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1393. [PMID: 36837023 PMCID: PMC9965701 DOI: 10.3390/ma16041393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/23/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Bone marrow is complex structure containing heterogenetic cells, making it difficult to regenerate using artificial scaffolds. In a previous study, we succeeded in developing honeycomb tricalcium phosphate (TCP), which is a cylindrical scaffold with a honeycomb arrangement of straight pores, and we demonstrated that TCP with 300 and 500 μm pore diameters (300TCP and 500TCP) induced bone marrow structure within the pores. In this study, we examined the optimal scaffold structure for bone marrow with homeostatic bone metabolism using honeycomb TCP. 300TCP and 500TCP were transplanted into rat muscle, and bone marrow formation was histologically assessed. Immunohistochemistry for CD45, CD34, Runt-related transcription factor 2 (Runx2), c-kit single staining, Runx2/N-cadherin, and c-kit/Tie-2 double staining was performed. The area of bone marrow structure, which includes CD45(+) round-shaped hematopoietic cells and CD34(+) sinusoidal vessels, was larger in 300TCP than in 500TCP. Additionally, Runx2(+) osteoblasts and c-kit(+) hematopoietic stem cells were observed on the surface of bone tissue formed within TCP. Among Runx2(+) osteoblasts, spindle-shaped N-cadherin(+) cells existed in association with c-kit(+)Tie-2(+) hematopoietic stem cells on the bone tissue formed within TCP, which formed a hematopoietic stem cell niche similar to as in vivo. Therefore, honeycomb TCP with 300 μm pore diameters may be an artificial scaffold with an optimal geometric structure as a scaffold for bone marrow formation.
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Affiliation(s)
- Yasunori Inada
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8525, Japan
| | - Kiyofumi Takabatake
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8525, Japan
| | - Hidetsugu Tsujigiwa
- Department of Life Science, Faculty of Science, Okayama University of Science, Okayama 700-0005, Japan
| | - Keisuke Nakano
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8525, Japan
| | - Qiusheng Shan
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8525, Japan
| | - Tianyan Piao
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8525, Japan
| | - Anqi Chang
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8525, Japan
| | - Hotaka Kawai
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8525, Japan
| | - Hitoshi Nagatsuka
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8525, Japan
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Current Approaches in Vertical Bone Augmentation and Large Bone Deficiencies in the Orofacial Region. Regen Med 2023. [DOI: 10.1007/978-981-19-6008-6_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Reyna-Urrutia VA, Estevez M, González-González AM, Rosales-Ibáñez R. 3D scaffolds of caprolactone/chitosan/polyvinyl alcohol/hydroxyapatite stabilized by physical bonds seeded with swine dental pulp stem cell for bone tissue engineering. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:81. [PMID: 36484847 PMCID: PMC9734232 DOI: 10.1007/s10856-022-06702-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 11/10/2022] [Indexed: 06/07/2023]
Abstract
Bone Regeneration represents a clinical need, related to bone defects such as congenital anomalies, trauma with bone loss, and/or some pathologies such as cysts or tumors This is why a polymeric biomaterial that mimics the osteogenic composition and structure represents a high potential to face this problem. The method of obtaining these materials was first to prepare a stabilized hydrogel by means of physical bonds and then to make use of the lyophilization technique to obtain the 3D porous scaffolds with temperature conditions of -58 °C and pressure of 1 Pa for 16 h. The physicochemical and bioactive properties of the scaffolds were studied. FTIR and TGA results confirm the presence of the initial components in the 3d matrix of the scaffold. The scaffolds exhibited a morphology with pore size and interconnectivity that promote good cell viability. Together, the cell viability and proliferation test, Alamar BlueTM and the differentiation test: alizarin staining, showed the ability of physically stabilized scaffolds to proliferate and differentiate swine dental pulp stem cell (DPSCs) followed by mineralization. Therefore, the Cs-PCL-PVA-HA scaffold stabilized by physical bonds has characteristics that suggest great utility for future complementary in vitro tests and in vivo studies on bone defects. Likewise, this biomaterial was enhanced with the addition of HA, providing a scaffold with osteoconductive properties necessary for good regeneration of bone tissue. Graphical abstract.
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Affiliation(s)
- V A Reyna-Urrutia
- Tissue Engineering and Translational Medicine Laboratory, Iztacala School of Higher Studies, National Autonomous University of Mexico, Tenayuca-Chalmita S/N, Cuautepec Barrio Bajo, Gustavo A. Madero, Mexico, CP, 07239, Mexico
| | - Miriam Estevez
- Center for Applied Physics and Advanced Technology, National Autonomous University of Mexico, Campus Juriquilla, Boulevard Juriquilla No. 3001, Querétaro, Juriquilla, CP, 76230, Mexico
| | - A M González-González
- Tissue Engineering and Translational Medicine Laboratory, Iztacala School of Higher Studies, National Autonomous University of Mexico, Tenayuca-Chalmita S/N, Cuautepec Barrio Bajo, Gustavo A. Madero, Mexico, CP, 07239, Mexico
| | - R Rosales-Ibáñez
- Tissue Engineering and Translational Medicine Laboratory, Iztacala School of Higher Studies, National Autonomous University of Mexico, Tenayuca-Chalmita S/N, Cuautepec Barrio Bajo, Gustavo A. Madero, Mexico, CP, 07239, Mexico.
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Trubelja A, Kasper FK, Farach-Carson MC, Harrington DA. Bringing hydrogel-based craniofacial therapies to the clinic. Acta Biomater 2022; 138:1-20. [PMID: 34743044 PMCID: PMC9234983 DOI: 10.1016/j.actbio.2021.10.056] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/06/2021] [Accepted: 10/29/2021] [Indexed: 01/17/2023]
Abstract
This review explores the evolution of the use of hydrogels for craniofacial soft tissue engineering, ranging in complexity from acellular injectable fillers to fabricated, cell-laden constructs with complex compositions and architectures. Addressing both in situ and ex vivo approaches, tissue restoration secondary to trauma or tumor resection is discussed. Beginning with relatively simple epithelia of oral mucosa and gingiva, then moving to more functional units like vocal cords or soft tissues with multilayer branched structures, such as salivary glands, various approaches are presented toward the design of function-driven architectures, inspired by native tissue organization. Multiple tissue replacement paradigms are presented here, including the application of hydrogels as structural materials and as delivery platforms for cells and/or therapeutics. A practical hierarchy is proposed for hydrogel systems in craniofacial applications, based on their material and cellular complexity, spatial order, and biological cargo(s). This hierarchy reflects the regulatory complexity dictated by the Food and Drug Administration (FDA) in the United States prior to commercialization of these systems for use in humans. The wide array of available biofabrication methods, ranging from simple syringe extrusion of a biomaterial to light-based spatial patterning for complex architectures, is considered within the history of FDA-approved commercial therapies. Lastly, the review assesses the impact of these regulatory pathways on the translational potential of promising pre-clinical technologies for craniofacial applications. STATEMENT OF SIGNIFICANCE: While many commercially available hydrogel-based products are in use for the craniofacial region, most are simple formulations that either are applied topically or injected into tissue for aesthetic purposes. The academic literature previews many exciting applications that harness the versatility of hydrogels for craniofacial soft tissue engineering. One of the most exciting developments in the field is the emergence of advanced biofabrication methods to design complex hydrogel systems that can promote the functional or structural repair of tissues. To date, no clinically available hydrogel-based therapy takes full advantage of current pre-clinical advances. This review surveys the increasing complexity of the current landscape of available clinical therapies and presents a framework for future expanded use of hydrogels with an eye toward translatability and U.S. regulatory approval for craniofacial applications.
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Affiliation(s)
- Alen Trubelja
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, UTHealth Science Center at Houston, Houston, TX 77054, United States; Department of Bioengineering, Rice University, Houston, TX 77005, United States
| | - F Kurtis Kasper
- Department of Orthodontics, School of Dentistry, UTHealth Science Center at Houston, Houston, TX 77054, United States
| | - Mary C Farach-Carson
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, UTHealth Science Center at Houston, Houston, TX 77054, United States; Department of Bioengineering, Rice University, Houston, TX 77005, United States; Department of BioSciences, Rice University, Houston, TX 77005, United States
| | - Daniel A Harrington
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, UTHealth Science Center at Houston, Houston, TX 77054, United States; Department of Bioengineering, Rice University, Houston, TX 77005, United States; Department of BioSciences, Rice University, Houston, TX 77005, United States.
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11
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Abstract
Periodontal disease is one of the most common diagnoses in small animal veterinary medicine. This infectious disease of the periodontium is characterized by the inflammation and destruction of the supporting structures of teeth, including periodontal ligament, cementum, and alveolar bone. Traditional periodontal repair techniques make use of open flap debridement, application of graft materials, and membranes to prevent epithelial downgrowth and formation of a long junctional epithelium, which inhibits regeneration and true healing. These techniques have variable efficacy and are made more challenging in veterinary patients due to the cost of treatment for clients, need for anesthesia for surgery and reevaluation, and difficulty in performing necessary diligent home care to maintain oral health. Tissue engineering focuses on methods to regenerate the periodontal apparatus and not simply to repair the tissue, with the possibility of restoring normal physiological functions and health to a previously diseased site. This paper examines tissue engineering applications in periodontal disease by discussing experimental studies that focus on dogs and other animal species where it could potentially be applied in veterinary medicine. The main areas of focus of tissue engineering are discussed, including scaffolds, signaling molecules, stem cells, and gene therapy. To date, although outcomes can still be unpredictable, tissue engineering has been proven to successfully regenerate lost periodontal tissues and this new possibility for treating veterinary patients is discussed.
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Affiliation(s)
- Emily Ward
- Eastside Veterinary Dentistry, Woodinville, WA, USA
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12
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Effect of Magnesium on Dentinogenesis of Human Dental Pulp Cells. Int J Biomater 2021; 2021:6567455. [PMID: 34840576 PMCID: PMC8616686 DOI: 10.1155/2021/6567455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 10/27/2021] [Indexed: 11/23/2022] Open
Abstract
Introducing therapeutic ions into pulp capping materials has been considered a new approach for enhancing regeneration of dental tissues. However, no studies have been reported on its dentinogenic effects on human dental pulp cells (HDPCs). This study was designed to investigate the effects of magnesium (Mg2+) on cell attachment efficiency, proliferation, differentiation, and mineralization of HDPCs. HDPCs were cultured with 0.5 mM, 1 mM, 2 mM, 4 mM, and 8 mM concentrations of supplemental Mg2+ and 0 mM (control). Cell attachment was measured at 4, 8, 12, 16, and 20 hours. Cell proliferation rate was evaluated at 3, 7, 10, 14, and 21 days. Crystal violet staining was used to determine cell attachment and proliferation rate. Alkaline phosphatase (ALP) activity was assessed using the fluorometric assay at 7, 10, and 14 days. Mineralization of cultures was measured by Alizarin red staining. Statistical analysis was done using multiway analysis of variance (multiway ANOVA) with Wilks' lambda test. Higher cell attachment was shown with 0.5 mM and 1 mM at 16 hours compared to control (P < 0.0001). Cells with 0.5 mM and 1 mM supplemental Mg2+ showed significantly higher proliferation rates than control at 7, 10, 14, and 21 days (P < 0.0001). However, cell proliferation rates decreased significantly with 4 mM and 8 mM supplemental Mg2+ at 14 and 21 days (P < 0.0001). Significantly higher levels of ALP activity and mineralization were observed in 0.5 mM, 1 mM, and 2 mM supplemental Mg2+ at 10 and 14 days (P < 0.0001). However, 8 mM supplemental Mg2+ showed lower ALP activity compared to control at 14 days (P < 0.0001), while 4 mM and 8 mM supplemental Mg2+showed less mineralization compared to control (P < 0.0001). The study indicated that the optimal (0.5–2 mM) supplemental Mg2+ concentrations significantly upregulated HDPCs by enhancing cell attachment, proliferation rate, ALP activity, and mineralization. Magnesium-containing biomaterials could be considered for a future novel dental pulp-capping additive in regenerative endodontics.
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13
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Jeyaraman N, Prajwal GS, Jeyaraman M, Muthu S, Khanna M. Chondrogenic Potential of Dental-Derived Mesenchymal Stromal Cells. OSTEOLOGY 2021; 1:149-174. [DOI: 10.3390/osteology1030016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The field of tissue engineering has revolutionized the world in organ and tissue regeneration. With the robust research among regenerative medicine experts and researchers, the plausibility of regenerating cartilage has come into the limelight. For cartilage tissue engineering, orthopedic surgeons and orthobiologists use the mesenchymal stromal cells (MSCs) of various origins along with the cytokines, growth factors, and scaffolds. The least utilized MSCs are of dental origin, which are the richest sources of stromal and progenitor cells. There is a paradigm shift towards the utilization of dental source MSCs in chondrogenesis and cartilage regeneration. Dental-derived MSCs possess similar phenotypes and genotypes like other sources of MSCs along with specific markers such as dentin matrix acidic phosphoprotein (DMP) -1, dentin sialophosphoprotein (DSPP), alkaline phosphatase (ALP), osteopontin (OPN), bone sialoprotein (BSP), and STRO-1. Concerning chondrogenicity, there is literature with marginal use of dental-derived MSCs. Various studies provide evidence for in-vitro and in-vivo chondrogenesis by dental-derived MSCs. With such evidence, clinical trials must be taken up to support or refute the evidence for regenerating cartilage tissues by dental-derived MSCs. This article highlights the significance of dental-derived MSCs for cartilage tissue regeneration.
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14
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Dayi B, Bilecen DS, Eröksüz H, Yalcin M, Hasirci V. Evaluation of a collagen-bioaggregate composite scaffold in the repair of sheep pulp tissue. Eur Oral Res 2021; 55:152-161. [PMID: 34746787 PMCID: PMC8547756 DOI: 10.26650/eor.2021911441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/04/2021] [Accepted: 05/17/2021] [Indexed: 01/09/2023] Open
Abstract
Purpose: This study aimed to compare the effects of the collagen-BioAggregate mixture
(CBA-M) and collagen-BioAggregate composite (CBA-C) sponge as a scaffolding
material on the reparative dentin formation. Materials and methods: CBA-C sponge (10:1 w/w) was obtained and characterized by Scanning Electron
Microscopy (SEM) and Mercury Porosimetry. Cytotoxicity of the CBA-C sponge was
tested by using the L929 mouse fibroblast cell line. Dental pulp stem cells (DPSCs)
were isolated from the pulp tissue of sheep teeth and characterized by flow
cytometry for the presence of mesenchymal stem cell marker, CD44. The osteogenic
differentiation capability of isolated DPSCs was studied by Alizarin Red staining.
The cells were then used to study for the compatibility of CBA-C sponge with cell
proliferation and calcium phosphate deposition. The effect of CBA-C sponge and
CBA-M on the induction of dentin regeneration was studied in the perforated
teeth of sheep for the eight-week period. All the analyses were performed with
appropriate statistical hypothesis tests. Results: CBA-C sponge was found to be biocompatible for DPSCs. The DPSCs seeded on the
CBA-C sponge were able to differentiate into the osteoblastic lineage and deposit
calcium phosphate crystals in vitro. Reparative dentin formation was observed after
the second week in the CBA-C sponge applied group. At the end of eight weeks,
a complete reparative dentin structure was formed in the CBA-C sponge applied
group, whereas necrotic tissue residues were observed in groups treated with the
CBA-M. Conclusion: CBA-C sponge represents a better microenvironment for reparative dentin
formation probably due to maintaining DPSCs and allowing their osteogenic
differentiation and thus calcium phosphate deposition.
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Affiliation(s)
- Burak Dayi
- Department of Restorative Dentistry, Faculty of Dentistry, Inonu University, Malatya,Turkey
| | - Deniz Sezlev Bilecen
- Department of Molecular Biology and Genetics, Faculty of Agriculture and Natural Sciences, Konya Food and Agriculture University, Konya,Turkey.,BIOMATEN, METU Center of Excellence in Biomaterials and Tissue Engineering, Ankara,Turkey
| | - Hatice Eröksüz
- Department of Pathology, Faculty of Veterinary Medicine, Firat University, Elazığ,Turkey
| | | | - Vasif Hasirci
- BIOMATEN, METU Center of Excellence in Biomaterials and Tissue Engineering, Ankara,Turkey.,Department of Medical Engineering, Faculty of Engineering, Acibadem University, İstanbul,Turkey
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15
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Liu T, Xu J, Pan X, Ding Z, Xie H, Wang X, Xie H. Advances of adipose-derived mesenchymal stem cells-based biomaterial scaffolds for oral and maxillofacial tissue engineering. Bioact Mater 2021; 6:2467-2478. [PMID: 33553828 PMCID: PMC7850942 DOI: 10.1016/j.bioactmat.2021.01.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/03/2021] [Accepted: 01/11/2021] [Indexed: 02/05/2023] Open
Abstract
The management of oral and maxillofacial tissue defects caused by tumors, trauma, and congenital or acquired deformities has been a major challenge for surgeons over the last few decades. Autologous tissue transplantation, the gold standard of tissue reconstruction, is a valid method for repairing the oral and maxillofacial functions and aesthetics. However, several limitations hinder its clinical applications including complications of donor sites, limited tissue volume, and uncertain long-term outcomes. Adipose-derived mesenchymal stem cells (ADMSCs) widely exist in adipose tissue and can be easily obtained through liposuction. Like the bone marrow-derived mesenchymal stem cells (BMSCs), ADMSCs also have the multi-pluripotent potencies to differentiate into osteoblasts, chondrocytes, neurons, and myocytes. Therefore, the multilineage capacity of ADMSCs makes them valuable for cell-based medical therapies. In recent years, researchers have developed many candidates of ADMSCs-based biomaterial scaffolds to cater for the needs of oral and maxillofacial tissue engineering due to their superior performance. This review presents the advances and applications of ADMSCs-based biomaterial scaffolds, and explores their tissue engineering prospects in oral and maxillofacial reconstructions.
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Affiliation(s)
- Tong Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Jia Xu
- The Key Laboratory of Oral Biomedicine, Jiangxi Province, School of Stomatology, Nanchang University, Nanchang, 330006, China
| | - Xun Pan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Zhangfan Ding
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Hao Xie
- General Surgery Department, The Second Affiliated Hospital of Wannan Medical College, Wuhu, Anhui Province, 241000, China
| | - Xiaoyi Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Huixu Xie
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
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16
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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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17
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Craciunescu O, Seciu AM, Zarnescu O. In vitro and in vivo evaluation of a biomimetic scaffold embedding silver nanoparticles for improved treatment of oral lesions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:112015. [PMID: 33812634 DOI: 10.1016/j.msec.2021.112015] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 02/26/2021] [Accepted: 03/01/2021] [Indexed: 01/24/2023]
Abstract
BACKGROUND New materials are currently designed for efficient treatment of oral tissue lesions by guided tissue regeneration. The aim of this study was to develop a multifunctional 3D hybrid biomaterial consisting of extracellular matrix components, collagen, chondroitin 4-sulfate and fibronectin, functionalised with silver nanoparticles, intended to improve periodontitis treatment protocols. METHODS Structural observations were performed by autometallography, scanning and transmission electron microscopy. In vitro tests of 3D constructs of embedded gingival fibroblasts within hybrid biomaterial were performed by MTS and Live/Dead assays. Genotoxicity was assessed by comet assay. In vivo experiments using chick embryo chorioallantoic membrane (CAM) assay analysed the degradation and nanoparticles release, but also angiogenesis, new tissue formation in 3D constructs and the regenerative potential of the hybrid material. Biological activity was investigated in experimental models of inflamed THP-1 macrophages and oral specific bacterial cultures. RESULTS Light micrographs showed distribution of silver nanoparticles on collagen fibrils. Scanning electron micrographs revealed a microstructure with interconnected pores, which favoured cell adhesion and infiltration. Cell viability and proliferation were significantly higher within the 3D hybrid biomaterial than in 2D culture conditions, while absence of the hybrid material's genotoxic effect was found. In vivo experiments showed that the hybrid material was colonised by cells and blood vessels, initiating synthesis of new extracellular matrix. Besides the known effect of chondroitin sulfate, incorporated silver nanoparticles increased the anti-inflammatory activity of the hybrid biomaterial. The silver nanoparticles maintained their antibacterial activity even after embedding in the polymeric scaffold and inhibited the growth of F. nucleatum and P. gingivalis. CONCLUSION The novel biomimetic scaffold functionalised with silver nanoparticles presented regenerative, anti-inflammatory and antimicrobial potential for oral cavity lesions repair.
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Affiliation(s)
- Oana Craciunescu
- Department of Cellular and Molecular Biology, National Institute R&D for Biological Sciences, 296, Splaiul Independentei, 060031 Bucharest, Romania
| | - Ana-Maria Seciu
- Department of Cellular and Molecular Biology, National Institute R&D for Biological Sciences, 296, Splaiul Independentei, 060031 Bucharest, Romania; University of Bucharest, Faculty of Biology, Splaiul Independentei 91-95, 050095 Bucharest, Romania
| | - Otilia Zarnescu
- University of Bucharest, Faculty of Biology, Splaiul Independentei 91-95, 050095 Bucharest, Romania.
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18
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Safiaghdam H, Nokhbatolfoghahaei H, Khojasteh A. Therapeutic Metallic Ions in Bone Tissue Engineering: A Systematic Review of The Literature. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2020; 18:101-118. [PMID: 32802092 PMCID: PMC7393040 DOI: 10.22037/ijpr.2020.112641.13894] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
An important field of bone tissue engineering (BTE) concerns the design and fabrication of smart scaffolds capable of inducing cellular interactions and differentiation of osteo-progenitor cells. One of these additives that has gained growing attention is metallic ions as therapeutic agents (MITAs). The specific biological advantage that these ions bring to scaffolds as well as other potential mechanical, and antimicrobial enhancements may vary depending on the ion entity, fabrication method, and biomaterials used. Therefore, this article provides an overview on current status of In-vivo application of MITAs in BTE and the remaining challenges in the field. Electronic databases, including PubMed, Scopus, Science direct and Cochrane library were searched for studies on MITAs treatments for BTE. We searched for articles in English from January-2000 to October-2019. Abstracts, letters, conference papers and reviews, In-vitro studies, studies on alloys and studies investigating effects other than enhancement of new bone formation (NBF) were excluded. A detailed summary of relevant metallic ions with specific scaffold material and design, cell type, animal model and defect type, the implantation period, measured parameters and obtained qualitative and quantitative results is presented. No ideal material or fabrication method suited to deliver MITAs can yet be agreed upon, but an investigation into various systems and their drawbacks or potential advantages can lead the future research. A tendency to enhance NBF with MITAs can be observed in the studies. However, this needs to be validated with further studies comparing various ions with each other in the same animal model using critical-sized defects.
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Affiliation(s)
- Hannaneh Safiaghdam
- Student Research Committee, Dental school, Shahid Beheshti university of medical sciences, Tehran, Iran
| | - Hanieh Nokhbatolfoghahaei
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Dental Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arash Khojasteh
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Dental Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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19
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Witek L, Tian H, Tovar N, Torroni A, Neiva R, Gil LF, Coelho PG. The effect of platelet‐rich fibrin exudate addition to porous poly(lactic‐
co
‐glycolic acid) scaffold in bone healing: An in vivo study. J Biomed Mater Res B Appl Biomater 2020; 108:1304-1310. [DOI: 10.1002/jbm.b.34478] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/18/2019] [Accepted: 08/06/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Lukasz Witek
- Department of Biomaterials and BiomimeticsNew York University College of Dentistry New York New York
| | - Han Tian
- Department of Biomaterials and BiomimeticsNew York University College of Dentistry New York New York
| | - Nick Tovar
- Department of Biomaterials and BiomimeticsNew York University College of Dentistry New York New York
| | - Andrea Torroni
- Hansjörg Wyss Department of Plastic SurgeryNew York University School of Medicine New York New York
| | - Rodrigo Neiva
- Department of PeriodontologyUniversity of Florida College of Dentistry Gainesville Florida
| | - Luiz F. Gil
- Department of Morphological SciencesFederal University of Santa Catarina (UFSC) Florianópolis Brazil
| | - Paulo G. Coelho
- Department of Biomaterials and BiomimeticsNew York University College of Dentistry New York New York
- Hansjörg Wyss Department of Plastic SurgeryNew York University School of Medicine New York New York
- Department of Mechanical and Aerospace EngineeringNew York University Tandon School of Engineering Brooklyn New York
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20
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Wijedasa NP, Broas SM, Daso RE, Banerjee IA. Varying fish scale derived hydroxyapatite bound hybrid peptide nanofiber scaffolds for potential applications in periodontal tissue regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 109:110540. [DOI: 10.1016/j.msec.2019.110540] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 01/30/2023]
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21
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Tissue Engineering and Regenerative Medicine in Craniofacial Reconstruction and Facial Aesthetics. J Craniofac Surg 2020; 31:15-27. [PMID: 31369496 DOI: 10.1097/scs.0000000000005840] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The craniofacial region is anatomically complex and is of critical functional and cosmetic importance, making reconstruction challenging. The limitations of current surgical options highlight the importance of developing new strategies to restore the form, function, and esthetics of missing or damaged soft tissue and skeletal tissue in the face and cranium. Regenerative medicine (RM) is an expanding field which combines the principles of tissue engineering (TE) and self-healing in the regeneration of cells, tissues, and organs, to restore their impaired function. RM offers many advantages over current treatments as tissue can be engineered for specific defects, using an unlimited supply of bioengineered resources, and does not require immunosuppression. In the craniofacial region, TE and RM are being increasingly used in preclinical and clinical studies to reconstruct bone, cartilage, soft tissue, nerves, and blood vessels. This review outlines the current progress that has been made toward the engineering of these tissues for craniofacial reconstruction and facial esthetics.
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22
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23
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Haroun AA, Zaki BM, Shalash M, Morsy RAA. Preparation and Histological Study of Multi-Walled Carbon Nanotubes Bone Graft in Management of Class II Furcation Defects in Dogs. Open Access Maced J Med Sci 2019; 7:3634-3641. [PMID: 32010391 PMCID: PMC6986499 DOI: 10.3889/oamjms.2019.738] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND: The main target of periodontal disease and alveolar bone defeat treatment is the regeneration of the lost structures. AIM: This work deals with the evaluation of the effect of functionalised multi-walled carbon nanotubes (MWCNTs), as grafting material in the management of furcation defects created in dogs. MATERIAL AND METHODS: Potential cytotoxicity of the grafting material was assessed. Scanning electron microscope (SEM) and energy dispersive x-ray (EDX) analysis after incubation of the grafting material in simulated body fluid (SBF) at pH 7.4 and 37°C for one week was done. In six healthy mongrel dogs’ full-thickness mucoperiosteal flaps were raised on the buccal aspects to create two walls intrabony defects at the furcation areas. The mandibular premolar area received the grafting material. Histological evaluation was carried out at 1, 2- and 3-months’ period. RESULTS: Cytotoxicity results proved the safety of grafting material application. The prepared material exhibited good Ca-apatite crystal patterns at the surface revealed by SEM and high calcium content showed by EDX results. Good bone formation ability was also apparent histologically. CONCLUSION: The prepared grafting material (MWCNTs) can serve as a delivery vehicle for osteogenic cells and osteogenic growth factor proteins in the bone development process.
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Affiliation(s)
- Ahmed A Haroun
- Chemical Industries Research Division, National Research Centre, Cairo, Egypt
| | - Basma Mostafa Zaki
- Oral and Dental Research Division, National Research Centre, Cairo, Egypt
| | - Mahmoud Shalash
- Oral and Dental Research Division, National Research Centre, Cairo, Egypt
| | - Reham A A Morsy
- Oral and Dental Research Division, National Research Centre, Cairo, Egypt
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24
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Ahmadian E, Eftekhari A, Dizaj SM, Sharifi S, Mokhtarpour M, Nasibova AN, Khalilov R, Samiei M. The effect of hyaluronic acid hydrogels on dental pulp stem cells behavior. Int J Biol Macromol 2019; 140:245-254. [PMID: 31419560 DOI: 10.1016/j.ijbiomac.2019.08.119] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 08/09/2019] [Accepted: 08/13/2019] [Indexed: 01/12/2023]
Abstract
Dental caries and trauma, particularly in childhood, are among the most prevalent teeth problems, which result in the creation of cavities and probably tooth loss. Thus, novel regenerative approaches with high efficiency and less toxicity are required. Stem cell therapy along with the implementation of scaffolds has provided excellent opportunities in the regeneration of teeth structure. Hyaluronic acid (HA) hydrogels have enticed great attention in the field of regenerative medicine. The unique chemical and structural properties of HA and its derivatives have enabled their application in tissue engineering. Several factors such as the location and type of the lesion, teeth age, the type of capping materials determine the success rate of pulp therapy. HA hydrogels have been considered as biocompatible and safe scaffold supports in human dental cell therapies.
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Affiliation(s)
- Elham Ahmadian
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Students' Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aziz Eftekhari
- Pharmacology and Toxicology Department, Maragheh University of Medical Sciences, Maragheh, Iran
| | - Solmaz Maleki Dizaj
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Simin Sharifi
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Aygun N Nasibova
- Department of Biophysics and Molecular Biology, Baku State University, Baku, Azerbaijan; Institute of Radiation Problems, National Academy of Sciences of Azerbaijan, Baku, Azerbaijan
| | - Rovshan Khalilov
- Department of Biophysics and Molecular Biology, Baku State University, Baku, Azerbaijan; Institute of Radiation Problems, National Academy of Sciences of Azerbaijan, Baku, Azerbaijan; Joint Ukraine-Azerbaijan International Research and Education Center of Nanobiotechnology and Functional Nanosystems, Drohobych Ukraine & Baku, Azerbaijan
| | - Mohammad Samiei
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.
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25
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Chai J, Jin R, Yuan G, Kanter V, Miron RJ, Zhang Y. Effect of Liquid Platelet-rich Fibrin and Platelet-rich Plasma on the Regenerative Potential of Dental Pulp Cells Cultured under Inflammatory Conditions: A Comparative Analysis. J Endod 2019; 45:1000-1008. [PMID: 31248700 DOI: 10.1016/j.joen.2019.04.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 04/01/2019] [Accepted: 04/09/2019] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Platelet-rich plasma (PRP) has been widely used in regenerative dentistry for over 2 decades. Nevertheless, previous studies have shown that its growth factor content is released over a short time period, and the application of anticoagulants limits its regenerative potential. Therefore, a second-generation platelet concentrate (liquid platelet-rich fibrin [PRF]) was developed without the use of anticoagulants and with shorter centrifugation times. The purpose of the present study was to compare the cellular regenerative activity of human dental pulp cells (hDPCs) when cultured with either liquid PRF or traditional PRP. METHODS The regenerative potential of hDPCs isolated from healthy human third molars (18-22 years, n = 5) was investigated in both normal and inflammatorylike conditions (lipopolysaccharide [LPS]) and assessed for their potential for dentin repair. The effects of liquid PRF and PRP were assessed for cellular migration, proliferation, and odontoblastic differentiation using a transwell assay, scratch assay, proliferation assay, alkaline phosphatase assay, alizarin red staining, and real-time polymerase chain reaction for genes encoding collagen type 1 alpha 1, dentin sialophosphoprotein, and dentin matrix protein 1, respectively. The effects of both platelet concentrates were also assessed for their ability to influence nuclear translocation of nuclear factor kappa B (p65) by immunofluorescence, and reverse-transcription polymerase chain reaction for genes encoding interleukin-1β, tumor necrosis factor alpha, and nuclear factor kappa B (p65) during an inflammatory condition. RESULTS Both PRP and liquid PRF increased the migration and proliferation of hDPCs when compared with the control group, whereas liquid PRF showed a notable significant increase in migration when compared with PRP. Furthermore, liquid PRF induced significantly greater alkaline phosphatase activity, alizarin red staining, and a messenger RNA expression of genes encoding collagen type 1 alpha 1, dentin sialophosphoprotein, and dentin matrix protein 1 when compared with PRP. When hDPCs were cultured with LPS to stimulate an inflammatory environment, a marked decrease in dentin-related repair was observed. When liquid PRF was cultured within this inflammatory environment, the reduced regenerative potential in this LPS-produced environment was significantly and markedly improved, facilitating hDPC regeneration. The messenger RNA expression of inflammatory markers including tumor necrosis factor alpha, interleukin-1β, and p65 were all significantly decreased in the presence of liquid PRF, and, furthermore, liquid PRF also inhibited the transport of p65 to the nucleus in hDPCs (suggesting a reduced inflammatory condition). CONCLUSIONS The findings from the present study suggest that liquid PRF promoted greater regeneration potential of hDPCs when compared with traditional PRP. Furthermore, liquid PRF also attenuated the inflammatory condition created by LPS and maintained a supportive regenerative ability for the stimulation of odontoblastic differentiation and reparative dentin in hDPCs.
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Affiliation(s)
- Jihua Chai
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Runze Jin
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Guohua Yuan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Pediatric Dentistry, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Valerie Kanter
- Department of Endodontics, University of California Los Angeles, Los Angeles, California
| | - Richard J Miron
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.
| | - Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Dental Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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Mabrouk M, Rajendran R, Soliman IE, Ashour MM, Beherei HH, Tohamy KM, Thomas S, Kalarikkal N, Arthanareeswaran G, Das DB. Nanoparticle- and Nanoporous-Membrane-Mediated Delivery of Therapeutics. Pharmaceutics 2019; 11:E294. [PMID: 31234394 PMCID: PMC6631283 DOI: 10.3390/pharmaceutics11060294] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/12/2019] [Accepted: 06/14/2019] [Indexed: 12/11/2022] Open
Abstract
Pharmaceutical particulates and membranes possess promising prospects for delivering drugs and bioactive molecules with the potential to improve drug delivery strategies like sustained and controlled release. For example, inorganic-based nanoparticles such as silica-, titanium-, zirconia-, calcium-, and carbon-based nanomaterials with dimensions smaller than 100 nm have been extensively developed for biomedical applications. Furthermore, inorganic nanoparticles possess magnetic, optical, and electrical properties, which make them suitable for various therapeutic applications including targeting, diagnosis, and drug delivery. Their properties may also be tuned by controlling different parameters, e.g., particle size, shape, surface functionalization, and interactions among them. In a similar fashion, membranes have several functions which are useful in sensing, sorting, imaging, separating, and releasing bioactive or drug molecules. Engineered membranes have been developed for their usage in controlled drug delivery devices. The latest advancement in the technology is therefore made possible to regulate the physico-chemical properties of the membrane pores, which enables the control of drug delivery. The current review aims to highlight the role of both pharmaceutical particulates and membranes over the last fifteen years based on their preparation method, size, shape, surface functionalization, and drug delivery potential.
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Affiliation(s)
- Mostafa Mabrouk
- Refractories, Ceramics and Building Materials Department, National Research Centre, 33 El Bohouth St (former EL Tahrirst)-Dokki, Giza 12622, Egypt.
| | - Rajakumari Rajendran
- International and Inter-University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686560, India.
| | - Islam E Soliman
- Biophysics Branch, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt.
| | | | - Hanan H Beherei
- Refractories, Ceramics and Building Materials Department, National Research Centre, 33 El Bohouth St (former EL Tahrirst)-Dokki, Giza 12622, Egypt.
| | - Khairy M Tohamy
- Biophysics Branch, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt.
| | - Sabu Thomas
- International and Inter-University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686560, India.
| | - Nandakumar Kalarikkal
- International and Inter-University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686560, India.
| | | | - Diganta B Das
- Department of Chemical Engineering, Loughborough University, Loughborough LE113TU, UK.
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Fuchs A, Youssef A, Seher A, Hartmann S, Brands RC, Müller-Richter UD, Kübler AC, Linz C. A new multilayered membrane for tissue engineering of oral hard- and soft tissue by means of melt electrospinning writing and film casting – An in vitro study. J Craniomaxillofac Surg 2019; 47:695-703. [DOI: 10.1016/j.jcms.2019.01.043] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 01/17/2019] [Accepted: 01/29/2019] [Indexed: 01/01/2023] Open
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Sargolzaie N, Rafiee M, Salari Sedigh H, Zare Mahmoudabadi R, Keshavarz H. Comparison of the effect of hemihydrate calcium sulfate granules and Cerabone on dental socket preservation: An animal experiment. J Dent Res Dent Clin Dent Prospects 2019; 12:238-244. [PMID: 30774788 PMCID: PMC6368944 DOI: 10.15171/joddd.2018.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 11/22/2018] [Indexed: 11/09/2022] Open
Abstract
Background. Early bone loss due to tooth extraction can be significantly reduced by socket preservation. The aim of this study was to compare the in vivo effects of hemihydrate calcium sulfate granules (an alloplastic material) and Cerabone (a bovine-derived xenograft) on socket preservation in dogs. Methods. Six male Mongrel dogs were randomly divided into 2 groups (n=3) for sacrificing and histological evaluation 4 and 8 weeks after a surgery. The second and third premolars on both sides of the lower jaw were extracted surgically. The sockets on one side were filled with Cerabone, and with calcium sulfate on the opposite side. In the slides, the ratio of the area of newly formed bone to the area of the entire cavity, and the ratio of the area of fibrous connective tissue to the area of the entire cavity were measured. The presence of inflammation was also examined. Wilcoxon signed-rank test, Sign test and McNemar test were used for statistical analyses (ɑ=0.05). Results. The means of new bone proportion were 11% and 8% for Cerabone and calcium sulfate, respectively (P=0.58). The means of connective tissue proportion were 29% and 33% for Cerabone and calcium sulfate, respectively (P=0.72). No inflammatory cells were observed in the Cerabone group, although 50% of the samples in the calcium sulfate group showed inflammation (P=0.50). Conclusion. The effects of calcium sulfate and Cerabone on socket preservation in dogs on bone formation, fibrous connective tissue and inflammation levels were not significantly different at 4- and 8-week postoperative intervals.
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Affiliation(s)
- Naser Sargolzaie
- Dental Materials Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Hamideh Salari Sedigh
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran3Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Reza Zare Mahmoudabadi
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.,Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hooman Keshavarz
- Department of Community Oral Health, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.,Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Pardo-Saganta A, Calvo IA, Saez B, Prosper F. Role of the Extracellular Matrix in Stem Cell Maintenance. CURRENT STEM CELL REPORTS 2019. [DOI: 10.1007/s40778-019-0149-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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30
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Moussa DG, Aparicio C. Present and future of tissue engineering scaffolds for dentin-pulp complex regeneration. J Tissue Eng Regen Med 2018; 13:58-75. [PMID: 30376696 DOI: 10.1002/term.2769] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 07/16/2018] [Accepted: 10/18/2018] [Indexed: 02/06/2023]
Abstract
More than two thirds of the global population suffers from tooth decay, which results in cavities with various levels of lesion severity. Clinical interventions to treat tooth decay range from simple coronal fillings to invasive root canal treatment. Pulp capping is the only available clinical option to maintain the pulp vitality in deep lesions, but irreversible pulp inflammation and reinfection are frequent outcomes for this treatment. When affected pulp involvement is beyond repair, the dentist has to perform endodontic therapy leaving the tooth non-vital and brittle. On-going research strategies have failed to overcome the limitations of existing pulp capping materials so that healthy and progressive regeneration of the injured tissues is attained. Preserving pulp vitality is crucial for tooth homeostasis and durability, and thus, there is a critical need for clinical interventions that enable regeneration of the dentin-pulp complex to rescue millions of teeth annually. The identification and development of appropriate biomaterials for dentin-pulp scaffolds are necessary to optimize clinical approaches to regenerate these hybrid dental tissues. Likewise, a deep understanding of the interactions between the micro-environment, growth factors, and progenitor cells will provide design basis for the most fitting scaffolds for this purpose. In this review, we first introduce the long-lasting clinical dental problem of rescuing diseased tooth vitality, the limitations of current clinical therapies and interventions to restore the damaged tissues, and the need for new strategies to fully revitalize the tooth. Then, we comprehensively report on the characteristics of the main materials of naturally-derived and synthetically-engineered polymers, ceramics, and composite scaffolds as well as their use in dentin-pulp complex regeneration strategies. Finally, we present a series of innovative smart polymeric biomaterials with potential to overcome dentin-pulp complex regeneration challenges.
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Affiliation(s)
- Dina G Moussa
- Minnesota Dental Research Centre for Biomaterials and Biomechanics, Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, Minnesota.,Department of Conservative Dentistry, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | - Conrado Aparicio
- Minnesota Dental Research Centre for Biomaterials and Biomechanics, Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, Minnesota
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de Carvalho Dias K, de Sousa DL, Barbugli PA, Cerri PS, Salih VM, Vergani CE. Development and characterization of a 3D oral mucosa model as a tool for host-pathogen interactions. J Microbiol Methods 2018; 152:52-60. [PMID: 30017850 DOI: 10.1016/j.mimet.2018.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 07/10/2018] [Accepted: 07/10/2018] [Indexed: 12/20/2022]
Abstract
The aim of this study was to (i) design, develop and validate a practical and physiologically relevant reconstituted in vitro oral mucosa tissue model and (ii) to assess its applicability in in vitro host-pathogen interactions with C. albicans and S. aureus. Co-culture organotypic constructions were created by incorporating specific numbers of keratinocytes (NOK-si) onto cellularised, collagen gel scaffolds containing human gingival fibroblasts incubated in KGM media and cultured for 14 days. The detection of the appropriate oral mucosa/epithelial structure was evaluated by histology (hematoxylin and eosin (HE), periodic acid-Schiff (P.A.S.) and Picrosirius red), and immunocytochemistry (cytokeratin 13, cytokeratin 14, Ki-67 and collagen IV) compared to a normal human gingiva. The morphology of the reconstituted tissue was analyzed by Transmission Electron Microscopy. To further quantitate tissue damage, lactate dehydrogenase (LDH) was measured in the tissue supernatant. NOK-si grown upon a gingival scaffold provided an organotypic model in an in vitro setting and exhibited structural characteristics typically associated with normal oral mucosa. Immunocytochemistry revealed the detection of epithelial cytokeratins 13 and 14, Col IV and Ki-67 in the reconstituted oral mucosa model. Infection was detected after 8 h and 16 h. This study presents an in vitro cellularised, organotypic model of reconstituted oral mucosa, which enables close control and characterization of its structure and differentiation over a mid-length period of time in culture.
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Affiliation(s)
- Kássia de Carvalho Dias
- Department of Dental Materials and Prosthodontics, Oral Rehabilitation Program, Araraquara School of Dentistry UNESP, Univ. Estadual Paulista, Centro, 14801903 Araraquara, SP, Brazil.
| | - Denise Lins de Sousa
- Department of Dental Materials and Prosthodontics, Oral Rehabilitation Program, Araraquara School of Dentistry UNESP, Univ. Estadual Paulista, Centro, 14801903 Araraquara, SP, Brazil
| | - Paula Aboud Barbugli
- Department of Dental Materials and Prosthodontics, Oral Rehabilitation Program, Araraquara School of Dentistry UNESP, Univ. Estadual Paulista, Centro, 14801903 Araraquara, SP, Brazil.
| | - Paulo Sérgio Cerri
- Department of Morphology, Laboratory of Histology and Embryology, Araraquara School of Dentistry UNESP, Univ. Estadual Paulista, Araraquara, SP, Brazil.
| | - Vehid Max Salih
- Plymouth University, Peninsula Schools of Medicine and Dentistry, UK.
| | - Carlos Eduardo Vergani
- Department of Dental Materials and Prosthodontics, Oral Rehabilitation Program, Araraquara School of Dentistry UNESP, Univ. Estadual Paulista, Centro, 14801903 Araraquara, SP, Brazil.
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Hassanzadeh P, Atyabi F, Dinarvand R. Tissue engineering: Still facing a long way ahead. J Control Release 2018; 279:181-197. [DOI: 10.1016/j.jconrel.2018.04.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/09/2018] [Accepted: 04/11/2018] [Indexed: 02/07/2023]
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Develos Godoy DJ, Banlunara W, Jaroenporn S, Sangvanich P, Thunyakitpisal P. Collagen and mPCL-TCP scaffolds induced differential bone regeneration in ovary-intact and ovariectomized rats. Biomed Mater Eng 2018; 29:389-399. [PMID: 29578466 DOI: 10.3233/bme-181733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The data on biomaterial-mediated bone regeneration directly comparing commercially available scaffolds in aging and osteoporotic conditions remain sparse. OBJECTIVE To investigate the effects of an absorbable collagen sponge (ACS) and a medical grade polycaprolactone-tricalcium phosphate (mPCL-TCP) scaffold on calvarial defect healing in ovary-intact and ovariectomized rats. METHODS Forty-two, 5-month old female Sprague-Dawley rats were divided into sham (OVI) or ovariectomy (OVX) groups (n=21). When rats reached 6 months old, 7 mm diameter calvarial defects were created and treated, further dividing each group into blood clot control, mPCL-TCP, or ACS subgroups (n=7). After four weeks, the calvarial specimens were evaluated using micro-computed tomography for bone volume fraction (BVF), and histopathology. RESULTS The effects of ovariectomy were confirmed by changes in body, uterine, and vaginal weight, and osteopenia in the femur. A significant increase in BVF was observed in ACS-subgroups compared with their respective control groups (p<0.05). Histopathological analysis revealed no cellular inflammatory infiltrate in any group. Fibrous tissue encapsulated the mPCL-TCP, while the ACS was well-integrated with the bone matrix. The OVX groups presented more osteoid and enlarged marrow cavities compared with the OVI groups. CONCLUSION ACS scaffold enhanced calvarial bone regeneration in OVI and OVX rats after four weeks.
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Affiliation(s)
- Dyna Jeanne Develos Godoy
- Dental Biomaterials Science Program, Graduate School, Chulalongkorn University, Thailand.,Department of Materials Science, Faculty of Science, Chulalongkorn University, Thailand
| | - Wijit Banlunara
- Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Thailand
| | - Sukanya Jaroenporn
- Department of Biology, Faculty of Science, Chulalongkorn University, Thailand
| | - Polkit Sangvanich
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Thailand
| | - Pasutha Thunyakitpisal
- Research Unit of Herbal Medicine, Biomaterial and Material for Dental Treatment, Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Thailand
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Ma D, Zhou N, Zhang T, Hu K, Ma X, Gu N. Photoresponsive smart hydrogel microsphere via host-guest interaction for 3D cell culture. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.02.073] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Leong WY, Soon CF, Wong SC, Tee KS, Cheong SC, Gan SH, Youseffi M. In Vitro Growth of Human Keratinocytes and Oral Cancer Cells into Microtissues: An Aerosol-Based Microencapsulation Technique. Bioengineering (Basel) 2017; 4:E43. [PMID: 28952522 PMCID: PMC5590479 DOI: 10.3390/bioengineering4020043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 05/08/2017] [Accepted: 05/12/2017] [Indexed: 12/03/2022] Open
Abstract
Cells encapsulation is a micro-technology widely applied in cell and tissue research, tissue transplantation, and regenerative medicine. In this paper, we proposed a growth of microtissue model for the human keratinocytes (HaCaT) cell line and an oral squamous cell carcinoma (OSCC) cell line (ORL-48) based on a simple aerosol microencapsulation technique. At an extrusion rate of 20 μL/min and air flow rate of 0.3 L/min programmed in the aerosol system, HaCaT and ORL-48 cells in alginate microcapsules were encapsulated in microcapsules with a diameter ranging from 200 to 300 μm. Both cell lines were successfully grown into microtissues in the microcapsules of alginate within 16 days of culture. The microtissues were characterized by using a live/dead cell viability assay, field emission-scanning electron microscopy (FE-SEM), fluorescence staining, and cell re-plating experiments. The microtissues of both cell types were viable after being extracted from the alginate membrane using alginate lyase. However, the microtissues of HaCaT and ORL-48 demonstrated differences in both nucleus size and morphology. The microtissues with re-associated cells in spheroids are potentially useful as a cell model for pharmacological studies.
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Affiliation(s)
- Wai Yean Leong
- Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia.
| | - Chin Fhong Soon
- Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia.
- Biosensor and Bioengineering Laboratory, MiNT-SRC Research Center, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia.
| | - Soon Chuan Wong
- Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia.
| | - Kian Sek Tee
- Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia.
| | - Sok Ching Cheong
- Cancer Research Malaysia, 1, Jalan SS12/1A, Subang Jaya 47500, Malaysia.
| | - Siew Hua Gan
- Human Genome Centre, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kota Bahru, Malaysia.
| | - Mansour Youseffi
- School of Engineering, Design and Technology, Medical Engineering, University of Bradford, Bradford BD7 1DP, UK.
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Vucic S, Korevaar TIM, Dhamo B, Jaddoe VWV, Peeters RP, Wolvius EB, Ongkosuwito EM. Thyroid Function during Early Life and Dental Development. J Dent Res 2017; 96:1020-1026. [PMID: 28489513 DOI: 10.1177/0022034517708551] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Children with low levels of thyroid hormones (hypothyroidism) have delayed tooth eruption, enamel hypoplasia, micrognathia, and anterior open bite, whereas children with hyperthyroidism may suffer from accelerated tooth eruption, maxillary, and mandibular osteoporosis. However, it is still unknown whether thyroid function variations within the normal or subclinical range also have an impact on hard dental tissues in healthy children. The objective of this study was, therefore, to investigate the association between thyroid function from the fetal period until early childhood and dental development at school age. This study is embedded in the Generation R Study, a population-based cohort study established in Rotterdam, the Netherlands. Maternal thyroid function (thyroid-stimulating hormone [TSH], free thyroxine [FT4], and thyroid peroxidase antibody [TPOAb] concentrations) was measured during early pregnancy, and thyroid function of the offspring (TSH and FT4) was measured in cord blood at birth and in early childhood (6 y). Dental development was assessed from panoramic radiographs of children of school-going age (9 y). In total, 2,387 to 2,706 subjects were available for the multivariable linear regression analysis, depending on the point in time of thyroid function measurement. There was an inverse association between cord blood and early childhood TSH concentrations with dental development, with a -0.06 lower standard deviation (SD) per 1 mU/L of TSH (95% confidence interval [CI], -0.11 to -0.01) and a -0.06 lower SD per 1 mU/L of TSH (95% CI, -0.11 to 0.00), respectively. There was no association between the maternal thyroid function during pregnancy and the dental development score of the child. However, TPOAb-positive mothers had children with a -0.20 SD (adjusted 95% CI, -0.35 to -0.04) lower dental development score compared with TPOAb-negative mothers. The findings of this study suggest that the thyroid hormone is involved in the maturation of teeth from the early stages of life onward.
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Affiliation(s)
- S Vucic
- 1 The Generation R Study Group, Erasmus University Medical Centre, Rotterdam, the Netherlands.,2 Department of Oral & Maxillofacial Surgery, Special Dental Care, and Orthodontics, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - T I M Korevaar
- 1 The Generation R Study Group, Erasmus University Medical Centre, Rotterdam, the Netherlands.,3 Department of Internal Medicine and Rotterdam Thyroid Center, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - B Dhamo
- 1 The Generation R Study Group, Erasmus University Medical Centre, Rotterdam, the Netherlands.,2 Department of Oral & Maxillofacial Surgery, Special Dental Care, and Orthodontics, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - V W V Jaddoe
- 1 The Generation R Study Group, Erasmus University Medical Centre, Rotterdam, the Netherlands.,4 Department of Epidemiology, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - R P Peeters
- 1 The Generation R Study Group, Erasmus University Medical Centre, Rotterdam, the Netherlands.,3 Department of Internal Medicine and Rotterdam Thyroid Center, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - E B Wolvius
- 1 The Generation R Study Group, Erasmus University Medical Centre, Rotterdam, the Netherlands.,2 Department of Oral & Maxillofacial Surgery, Special Dental Care, and Orthodontics, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - E M Ongkosuwito
- 1 The Generation R Study Group, Erasmus University Medical Centre, Rotterdam, the Netherlands.,2 Department of Oral & Maxillofacial Surgery, Special Dental Care, and Orthodontics, Erasmus University Medical Centre, Rotterdam, the Netherlands
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Bone marrow mesenchymal stem cells combine with Treated dentin matrix to build biological root. Sci Rep 2017; 7:44635. [PMID: 28401887 PMCID: PMC5388852 DOI: 10.1038/srep44635] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 02/13/2017] [Indexed: 02/05/2023] Open
Abstract
Treated dentin matrix (TDM) as a kind of scaffolding material has been proved odontogenic induction ability on dental-derived stem cells. Given the limited resources of dental stem cells, it is necessary to seek new seed cell which easily obtained. Jaw bone marrow mesenchymal stem cell (JBMMSC) as non-dental-derived stem cell relates to the development of teeth and jaws which suggest us JBMMSCs could act as a new seed cell for tooth tissue engineering. To assess the odontogenic and osteogenic potential of JBMMSCs, cells were induced by TDM extraction in vitro and combined with TDM in vivo. Results were analyzed by PCR, Western Blotting and histology. PCR and Western Blotting showed odontogenic and osteogenic makers were significantly enhanced in varying degrees after induced by TDM extraction in vitro. In vivo, JBMMSCs expressed both odontogenic and osteogenic-related protein, and the latter showed stronger positive expression. Furthermore, histological examination of the harvested grafts was observed the formation of bone-like tissue. Therefore, osteogenic differentiation ability of JBMMSCs were enhanced significantly after being inducted by TDM which illustrates that non-odontogenic derived stem cells are still promising seed cells in tooth root tissue engineering.
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Martins MR, Lima RC, Pina-Vaz I, Carvalho MF, Gutknecht N. Endodontic Treatment of an Autogenous Transplanted Tooth Using an Er,Cr:YSGG Laser and Radial Firing Tips: Case Report. Photomed Laser Surg 2016; 34:487-493. [PMID: 27575836 DOI: 10.1089/pho.2015.4061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE AND BACKGROUND Although several surgical techniques have been reported, no study has yet reported alternative strategies for endodontic treatment of autogenous transplanted teeth. Therefore, the aim of this clinical report is to present the long-term endodontic outcome of a nonvital autogenously transplanted third molar treated with an Er,Cr:YSGG laser and radial firing tips (RFTs). CASE REPORT Autogenous tooth transplantation can be considered an alternative to restore edentulous areas and, in donor's teeth with complete root formation, root canal treatment should be performed up to 14 days following transplantation. In the present case report, the patient returned only after 6 months, with clinical and radiological signs of apical periodontitis (AP) associated with the transplanted tooth. METHODS Instead of traditional endodontic chemical irrigants or medications, the protocol for smear-layer removal and root canal disinfection was based on intracanal irradiation with an Er,Cr:YSGG laser and RFTs. RESULTS After 3-years' follow-up, the complete reestablishment of the periodontal ligament and the arrest of the resorptive process could be noticed. CONCLUSIONS This protocol has shown to be effective for the endodontic treatment of a transplanted multi-rooted tooth with AP. Further randomized clinical trials should be conducted to clearly demonstrate the effectiveness of this laser-assisted endodontic protocol.
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Affiliation(s)
- Miguel Rodrigues Martins
- 1 Department of Endodontics, Faculdade de Medicina Dentária, Universidade do Porto , Porto, Portugal
| | - Rita C Lima
- 2 Department of Oral Surgery, Faculdade de Medicina Dentária, Universidade do Porto , Porto, Portugal
| | - Irene Pina-Vaz
- 1 Department of Endodontics, Faculdade de Medicina Dentária, Universidade do Porto , Porto, Portugal
| | - Manuel Fontes Carvalho
- 1 Department of Endodontics, Faculdade de Medicina Dentária, Universidade do Porto , Porto, Portugal
| | - Norbert Gutknecht
- 3 Department of Conservative Dentistry, RWTH Aachen University , Aachen, Germany
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Innovative Dental Stem Cell-Based Research Approaches: The Future of Dentistry. Stem Cells Int 2016; 2016:7231038. [PMID: 27648076 PMCID: PMC5018320 DOI: 10.1155/2016/7231038] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 06/15/2016] [Accepted: 07/12/2016] [Indexed: 12/30/2022] Open
Abstract
Over the past decade, the dental field has benefited from recent findings in stem cell biology and tissue engineering that led to the elaboration of novel ideas and concepts for the regeneration of dental tissues or entire new teeth. In particular, stem cell-based regenerative approaches are extremely promising since they aim at the full restoration of lost or damaged tissues, ensuring thus their functionality. These therapeutic approaches are already applied with success in clinics for the regeneration of other organs and consist of manipulation of stem cells and their administration to patients. Stem cells have the potential to self-renew and to give rise to a variety of cell types that ensure tissue repair and regeneration throughout life. During the last decades, several adult stem cell populations have been isolated from dental and periodontal tissues, characterized, and tested for their potential applications in regenerative dentistry. Here we briefly present the various stem cell-based treatment approaches and strategies that could be translated in dental practice and revolutionize dentistry.
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Tong S, Xu DP, Liu ZM, Du Y, Wang XK. Synthesis of and in vitro and in vivo evaluation of a novel TGF-β1-SF-CS three-dimensional scaffold for bone tissue engineering. Int J Mol Med 2016; 38:367-80. [PMID: 27352815 PMCID: PMC4935461 DOI: 10.3892/ijmm.2016.2651] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 05/23/2016] [Indexed: 12/29/2022] Open
Abstract
The role of transforming growth factor-β1 (TGF-β1) in normal human fracture healing has been previously demonstrated. The objective of the present study was to examine the biocompatibility of TGF-β1-silk fibroin-chitosan (TGF-β1-SF-CS) three-dimensional (3D) scaffolds in order to construct an ideal scaffold for bone tissue engineering. We added TGF-β1 directly to the SF-CS scaffold to construct a 3D scaffold for the first time, to the best of our knowledge, and performed evaluations to determine whether it may have potential applications as a growth factor delivery device. Bone marrow-derived mesenchymal stem cells (BMSCs) were seeded on the TGF-β1-SF-CS scaffolds and the silk fibroin-chitosan (SF-CS) scaffolds. On the TGF-β1‑SF-CS and the SF-CS scaffolds, the cell adhesion rate increased in a time‑dependent manner. Using a Cell Counting Kit-8 (CCK-8) assay and analyzing the alkaline phosphatase (ALP) expression proved that TGF-β1 significantly enhanced the growth and proliferation of BMSCs on the SF-CS scaffolds in a time-dependent manner. To examine the in vivo biocompatibility and osteogenesis of the TGF-β1‑SF-CS scaffolds, the TGF-β1-SF-CS scaffolds and the SF-CS scaffolds were implanted in rabbit mandibles and studied histologically and microradiographically. The 3D computed tomography (CT) scan and histological examinations of the samples showed that the TGF-β1-SF-CS scaffolds exhibited good biocompatibility and extensive osteoconductivity with the host bone after 8 weeks. Moreover, the introduction of TGF-β1 to the SF-CS scaffolds markedly enhanced the efficiency of new bone formation, and this was confirmed using bone mineral density (BMD) and biomechanical evaluation, particularly at 8 weeks after implantation. We demonstrated that the TGF-β1‑SF-CS scaffolds possessed as good biocompatibility and osteogenesis as the hybrid ones. Taken together, these findings indicate that the TGF-β1-SF-CS scaffolds fulfilled the basic requirements of bone tissue engineering, and have the potential to be applied in orthopedic, reconstructive and maxillofacial surgery. Thus, TGF-β1-SF-CS composite scaffolds represent a promising, novel type of scaffold for use in bone tissue engineering.
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Affiliation(s)
- Shuang Tong
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research, Shenyang, Liaoning 110002, P.R. China
| | - Da-Peng Xu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research, Shenyang, Liaoning 110002, P.R. China
| | - Zi-Mei Liu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research, Shenyang, Liaoning 110002, P.R. China
| | - Yang Du
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research, Shenyang, Liaoning 110002, P.R. China
| | - Xu-Kai Wang
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research, Shenyang, Liaoning 110002, P.R. China
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Almela T, Brook IM, Moharamzadeh K. Development of three-dimensional tissue engineered bone-oral mucosal composite models. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:65. [PMID: 26883949 PMCID: PMC4756037 DOI: 10.1007/s10856-016-5676-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 01/12/2016] [Indexed: 06/05/2023]
Abstract
Tissue engineering of bone and oral mucosa have been extensively studied independently. The aim of this study was to develop and investigate a novel combination of bone and oral mucosa in a single 3D in vitro composite tissue mimicking the natural structure of alveolar bone with an overlying oral mucosa. Rat osteosarcoma (ROS) cells were seeded into a hydroxyapatite/tri-calcium phosphate scaffold and bone constructs were cultured in a spinner bioreactor for 3 months. An engineered oral mucosa was fabricated by air/liquid interface culture of immortalized OKF6/TERET-2 oral keratinocytes on collagen gel-embedded fibroblasts. EOM was incorporated into the engineered bone using a tissue adhesive and further cultured prior to qualitative and quantitative assessments. Presto Blue assay revealed that ROS cells remained vital throughout the experiment. The histological and scanning electron microscope examinations showed that the cells proliferated and densely populated the scaffold construct. Micro computed tomography (micro-CT) scanning revealed an increase in closed porosity and a decrease in open and total porosity at the end of the culture period. Histological examination of bone-oral mucosa model showed a relatively differentiated parakeratinized epithelium, evenly distributed fibroblasts in the connective tissue layer and widely spread ROS cells within the bone scaffold. The feasibility of fabricating a novel bone-oral mucosa model using cell lines is demonstrated. Generating human 'normal' cell-based models with further characterization is required to optimize the model for in vitro and in vivo applications.
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Affiliation(s)
- Thafar Almela
- School of Clinical Dentistry, University of Sheffield, Claremont Crescent, Sheffield, S10 2TA, UK
| | - Ian M Brook
- School of Clinical Dentistry, University of Sheffield, Claremont Crescent, Sheffield, S10 2TA, UK
| | - Keyvan Moharamzadeh
- School of Clinical Dentistry, University of Sheffield, Claremont Crescent, Sheffield, S10 2TA, UK.
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Lozano-Carrascal N, Delgado-Ruiz RA, Gargallo-Albiol J, Maté-Sánchez JE, Hernandez Alfaro F, Calvo-Guirado JL. Xenografts Supplemented with Pamindronate placed in postextraction sockets to avoid crestal bone resorption. Experimental study in Fox hound dogs. Clin Oral Implants Res 2016; 27:149-55. [PMID: 25639484 DOI: 10.1111/clr.12550] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/26/2014] [Indexed: 12/19/2022]
Abstract
OBJECTIVES The aim of the study was to compare the effects of porcine xenografts (MP3(®)) with or without pamindronate for the healing of small and large defects of postextraction sockets. MATERIALS AND METHODS Six beagle dogs were used in the study; second premolars and first molars of the mandible were extracted, small defects (SD) and large defects (LD) were identified. Each defect was measured and randomly filled as follows: SC (small control defects filled with MP3(®) alone), ST (small test defects filled with MP3(®) modified with pamindronate), LC (large control defects filled with MP3(®) alone), LT (large test defects filled with MP3(®) modified with pamindronate). After 4 and 8 weeks, the animals were euthanized and the percentages of new bone formation (NB), residual graft (RG) and connective tissue (CT) were analysed by histology and histomorphometry of undecalcified samples. RESULTS After 4 weeks, NB formation was higher for ST compared to all groups and for LT compared to LC (P < 0.05); RG was significantly higher in both control groups compared to tests (P < 0.05); and CT was higher in large defects (LC and LT) compared to small defects. After 8 weeks, NB formation was higher for test groups (ST and LT) compared to controls (P < 0.05); RG was significantly higher in both control groups compared to tests (P < 0.05); and CT was higher in large defects (LC and LT) compared to small defects (P < 0.05). CONCLUSIONS Within the limitations of this experimental study, the findings suggest that porcine xenografts modified with pamindronate favours the new bone formation and increased the porcine xenograft substitution/replacement after 4 and 8 weeks of healing.
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Affiliation(s)
| | - Rafael Arcesio Delgado-Ruiz
- Department of Prosthodontics and Digital Technology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | | | | | | | - José Luis Calvo-Guirado
- General & Implant Dentistry, Faculty of Medicine and Dentistry, University of Murcia, Murcia, Spain
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Tong S, Xue L, Xu DP, Liu ZM, Du Y, Wang XK. In vitro culture of hFOB1.19 osteoblast cells on TGF-β1-SF-CS three-dimensional scaffolds. Mol Med Rep 2015; 13:181-7. [PMID: 26530112 PMCID: PMC4686111 DOI: 10.3892/mmr.2015.4498] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Accepted: 10/06/2015] [Indexed: 01/08/2023] Open
Abstract
The aim of the present study was to examine the biocompatibility of transforming growth factor-β1-silk fibroin-chitosan (TGF-β1-SF-CS) scaffolds. In order to provide an ideal scaffold for use in bone tissue engineering, TGF-β1 was introduced into the SF-CS scaffold in order to reconstruct a three dimensional scaffold, following which hFOB1.19 osteoblast cells were seeded onto TGF-β1-SF-CS and SF-CS scaffolds. On the TGF-β1-SF-CS and SF-CS scaffolds, the cell adhesion rate increased in a time-dependent manner. Scanning electron microscopy revealed that the cells grew actively and exhibited normal morphological features with multiple fissions, and granular and filamentous substrates were observed surrounding the cells. In addition, the cell microfilaments were closely connected with the scaffolds. The cells exhibited attached growth on the surfaces of the scaffolds, however, the growth also extended into the scaffolds. Cell Counting Kit-8 and ALP analyses revealed that TGF-β1 significantly promoted the growth and proliferation of the hFOB1.19 osteoblast cells in the SF-CS scaffolds, and the enhancement of osteoblast cell proliferation and activity by TGF-β1 occurred in a time-dependent manner. The TGF-β1-SF-CS composite material may offer potential as an ideal scaffold material for bone tissue engineering.
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Affiliation(s)
- Shuang Tong
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research, Shenyang, Liaoning 110002, P.R. China
| | - Lei Xue
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research, Shenyang, Liaoning 110002, P.R. China
| | - Da-Peng Xu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research, Shenyang, Liaoning 110002, P.R. China
| | - Zi-Mei Liu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research, Shenyang, Liaoning 110002, P.R. China
| | - Yang Du
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research, Shenyang, Liaoning 110002, P.R. China
| | - Xu-Kai Wang
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Liaoning Institute of Dental Research, Shenyang, Liaoning 110002, P.R. China
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Miranda DG, Malmonge SM, Campos DM, Attik NG, Grosgogeat B, Gritsch K. A chitosan-hyaluronic acid hydrogel scaffold for periodontal tissue engineering. J Biomed Mater Res B Appl Biomater 2015; 104:1691-1702. [PMID: 26344054 DOI: 10.1002/jbm.b.33516] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 07/31/2015] [Accepted: 08/23/2015] [Indexed: 11/11/2022]
Abstract
The current challenge in treating periodontitis is regenerating the periodontium. This motivates tissue-engineering researchers to develop scaffolds as artificial matrices that give mechanical support for osteoblasts, cementoblasts, gingival and periodontal ligament fibroblast cells. In this study, modified hyaluronic acid (HA) and chitosan (CS) were employed to create a hybrid CS-HA hydrogel scaffold for periodontal regeneration. CS, HA, and CS-HA scaffolds were obtained by freeze-drying technique, resulting in porous structures suitable for use in tissue engineering. Scaffolds were submitted to gamma and UV-sterilization without significant morphology changes. The ATR-FTIR spectra of CS-HA hydrogels showed peaks at 377 cm-1 , 1566 cm-1 , and 1614 cm-1 , representing secondary amide, primary amine, and carboxyl acid respectively, and it was also observed the emergence of peaks at 886 cm-1 , which probably represents the Schiff base formed in the case of hybrid CS-HA hydrogels. The scaffolds presented a high rate of PBS uptake, reaching values higher than 95%. Thermal degradation of HA scaffolds was around 225°C and CS was around 285°C. The ATR-FTIR spectra and swelling degree were slightly disturbed mainly after gamma sterilization, but degradation temperature did not change after sterilization. The performance of the CS-HA hydrogel scaffolds for in vitro cell culture was tested using NIH3T3 and MG63 cell lines. The Alamar Blue test showed a significant increase in cellular viability and high CD44 expression, suggesting that the cells migrated more when seeded onto the scaffolds. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1691-1702, 2016.
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Affiliation(s)
- Diego G Miranda
- Laboratoire des Multimatériaux et Interfaces CNRS (UMR 5615), Université Lyon 1, Villeurbanne, France.,UFR d'Odontologie, Université Lyon 1, Lyon, France
| | - Sônia M Malmonge
- Center of Engineering, Modeling and Applied Social Sciences, Federal University of ABC, Santo André, Sao Paulo, Brazil.
| | - Doris M Campos
- Laboratoire des Multimatériaux et Interfaces CNRS (UMR 5615), Université Lyon 1, Villeurbanne, France
| | - Nina G Attik
- Laboratoire des Multimatériaux et Interfaces CNRS (UMR 5615), Université Lyon 1, Villeurbanne, France
| | - Brigitte Grosgogeat
- Laboratoire des Multimatériaux et Interfaces CNRS (UMR 5615), Université Lyon 1, Villeurbanne, France.,UFR d'Odontologie, Université Lyon 1, Lyon, France.,Service de Consultations et de Traitements Dentaires (U.F. Santé Publique), Hospices Civils de Lyon, Lyon, France
| | - Kerstin Gritsch
- Laboratoire des Multimatériaux et Interfaces CNRS (UMR 5615), Université Lyon 1, Villeurbanne, France.,UFR d'Odontologie, Université Lyon 1, Lyon, France.,Service de Consultations et de Traitements Dentaires (U.F. Parodontologie), Hospices Civils de Lyon, Lyon, France
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Zhang Z, Song J, Han Y, Mu D, Su S, Ji X, Liu H. Impairment of mesenchymal stem cells derived from oral leukoplakia. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:10026-10037. [PMID: 26617710 PMCID: PMC4637525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 07/21/2015] [Indexed: 06/05/2023]
Abstract
Oral leukoplakia is one of the common precancerous lesions in oral mucosa. To compare the biological characteristics and regenerative capacities of mesenchymal stem cells (MSCs) from oral leukoplakia (epithelial hyperplasia and dysplasia) and normal oral mucosa, MSCs were isolated by enzyme digestion. Then these cells were identified by the expression of MSC related markers, STRO-1, CD105 and CD90, with the absent for the hematopoietic stem cell marker CD34 by flow cytometric detection. The self-renewal ability of MSCs from oral leukoplakia was enhanced, while the multipotent differentiation was descended, compared with MSCs from normal oral mucosa. Fibrin gel was used as a carrier for MSCs transplanted into immunocompromised mice to detect their regenerative capacity. The regenerative capacities of MSCs from oral leukoplakia became impaired partly. Collagen IV (Col IV) and matrix metalloproteinases-9 (MMP-9) were selected to analyze the potential mechanism for the functional changes of MSCs from oral leukoplakia by immunochemical and western blot analysis. The expression of Col IV was decreased and that of MMP-9 was increased by MSCs with the progression of oral leukoplakia, especially in MSCs from epithelial dysplasia. The imbalance between regenerative and metabolic self-regulatory functions of MSCs from oral leukoplakia may be related to the progression of this premalignant disorder.
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Affiliation(s)
- Zhihui Zhang
- Department of Oral Medicine, Peking University School and Hospital of Stomatology22 Zhongguancun South Avenue, Haidian District, Beijing 100081, China
- Department of Stomatology, Peking University Third HospitalBeijing 100081, China
| | - Jiangyuan Song
- Department of Oral Medicine, Peking University School and Hospital of Stomatology22 Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Ying Han
- Department of Oral Medicine, Peking University School and Hospital of Stomatology22 Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Dongdong Mu
- Department of Oral Medicine, Peking University School and Hospital of Stomatology22 Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Sha Su
- Department of Oral Medicine, Peking University School and Hospital of Stomatology22 Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Xiaoli Ji
- Department of Oral Medicine, Peking University School and Hospital of Stomatology22 Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Hongwei Liu
- Department of Oral Medicine, Peking University School and Hospital of Stomatology22 Zhongguancun South Avenue, Haidian District, Beijing 100081, China
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Xie Q, Wang Z, Huang Y, Bi X, Zhou H, Lin M, Yu Z, Wang Y, Ni N, Sun J, Wu S, You Z, Guo C, Sun H, Wang Y, Gu P, Fan X. Characterization of human ethmoid sinus mucosa derived mesenchymal stem cells (hESMSCs) and the application of hESMSCs cell sheets in bone regeneration. Biomaterials 2015. [PMID: 26196534 DOI: 10.1016/j.biomaterials.2015.07.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Mesenchymal stem cells (MSCs) have been extensively applied in the field of tissue regeneration. MSCs derived from various tissues exhibit different characteristics. In this study, a cluster of cells were isolated from human ethmoid sinus mucosa membrane and termed as hESMSCs. hESMSCs was demonstrated to have MSC-specific characteristics of self-renewal and tri-lineage differentiation. In particular, hESMSCs displayed strong osteogenic differentiation potential, and also remarkably promoted the proliferation and osteogenesis of rat bone marrow mesenchymal stem cells (rBMSCs) in vitro. Next, hESMSCs were prepared into a cell sheet and combined with a PSeD scaffold seeded with rBMSCs to repair critical-sized calvarial defects in rats, which showed excellent reparative effects. Additionally, ELISA assays revealed that secreted cytokines, such as BMP-2, BMP-4 and bFGF, were higher in the hESMSCs conditioned medium, and immunohistochemistry validated that hESMSCs cell sheet promoted the expression of BMP signaling downstream genes in newly formed bone. In conclusion, hESMSCs were demonstrated to be a class of mesenchymal stem cells that possessed high self-renewal capacity along with strong osteogenic potential, and the cell sheet of hESMSCs could remarkably promote new bone regeneration, indicating that hESMSCs cell sheet could serve as a novel and promising alternative strategy in the management of bone regeneration.
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Affiliation(s)
- Qing Xie
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Zi Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Yazhuo Huang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Xiaoping Bi
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Huifang Zhou
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Ming Lin
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Zhang Yu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Yefei Wang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Ni Ni
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Jing Sun
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Si Wu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai, 201620, PR China
| | - Chunyu Guo
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Hao Sun
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China
| | - Yadong Wang
- Departments of Bioengineering, Chemical Engineering, Surgery, and the McGowan Institute, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, 15261, USA
| | - Ping Gu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China.
| | - Xianqun Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China.
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Hilkens P, Meschi N, Lambrechts P, Bronckaers A, Lambrichts I. Dental Stem Cells in Pulp Regeneration: Near Future or Long Road Ahead? Stem Cells Dev 2015; 24:1610-22. [PMID: 25869156 DOI: 10.1089/scd.2014.0510] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Although regenerative endodontic procedures have yielded an impressive body of favorable outcomes, the treatment of necrotic immature permanent teeth in particular remains to be a challenge. Recent advances in dental stem cell (DSC) research have gained increasing insight in their regenerative potential and prospective use in the formation of viable dental tissues. Numerous studies have already reported successful dental pulp regeneration following application of dental pulp stem cells, stem cells from the apical papilla, or dental follicle precursor cells in different in vivo models. Next to responsive cells, dental tissue engineering also requires the support of an appropriate scaffold material, ranging from naturally occurring polymers to treated dentin matrix components. However, the routine use and banking of DSCs still holds some major challenges, such as culture-associated differences, patient-related variability, and the effects of culture medium additives. Only in-depth evaluation of these problems and the implementation of standardized models and protocols will effectively lead to better alternatives for patients who no longer benefit from current treatment protocols.
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Affiliation(s)
- Petra Hilkens
- 1 Laboratory of Morphology, Biomedical Research Institute (BIOMED), Hasselt University , Diepenbeek, Belgium
| | - Nastaran Meschi
- 2 Department of Oral Health Sciences, KU Leuven and Dentistry, University Hospitals Leuven , Leuven, Belgium
| | - Paul Lambrechts
- 2 Department of Oral Health Sciences, KU Leuven and Dentistry, University Hospitals Leuven , Leuven, Belgium
| | - Annelies Bronckaers
- 1 Laboratory of Morphology, Biomedical Research Institute (BIOMED), Hasselt University , Diepenbeek, Belgium
| | - Ivo Lambrichts
- 1 Laboratory of Morphology, Biomedical Research Institute (BIOMED), Hasselt University , Diepenbeek, Belgium
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Anisimova NY, Kiselevsky MV, Sukhorukova IV, Shvindina NV, Shtansky DV. Fabrication method, structure, mechanical, and biological properties of decellularized extracellular matrix for replacement of wide bone tissue defects. J Mech Behav Biomed Mater 2015; 49:255-68. [PMID: 26051225 DOI: 10.1016/j.jmbbm.2015.05.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 04/27/2015] [Accepted: 05/08/2015] [Indexed: 01/07/2023]
Abstract
The present paper was focused on the development of a new method of decellularized extracellular matrix (DECM) fabrication via a chemical treatment of a native bone tissue. Particular attention was paid to the influence of chemical treatment on the mechanical properties of native bones, sterility, and biological performance in vivo using the syngeneic heterotopic and orthotopic implantation models. The obtained data indicated that after a chemical decellularization treatment in 4% aqueous sodium chlorite, no noticeable signs of the erosion of compact cortical bone surface or destruction of trabeculae of spongy bone in spinal channel were observed. The histological studies showed that the chemical treatment resulted in the decellularization of both bone and cartilage tissues. The DECM samples demonstrated no signs of chemical and biological degradation in vivo. Thorough structural characterization revealed that after decellularization, the mineral frame retained its integrity with the organic phase; however clotting and destruction of organic molecules and fibers were observed. FTIR studies revealed several structural changes associated with the destruction of organic molecules, although all organic components typical of intact bone were preserved. The decellularization-induced structural changes in the collagen constituent resulted changed the deformation under compression mechanism: from the major fracture by crack propagation throughout the sample to the predominantly brittle fracture. Although the mechanical properties of radius bones subjected to decellularization were observed to degrade, the mechanical properties of ulna bones in compression and humerus bones in bending remained unchanged. The compressive strength of both the intact and decellularized ulna bones was 125-130 MPa and the flexural strength of humerus bones was 156 and 145 MPa for the intact and decellularized samples, respectively. These results open new avenues for the use of DECM samples as the replacement of wide bone tissue defects.
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Affiliation(s)
- N Y Anisimova
- Blokhin Russian Cancer Research Center of the Russian Academy of Medical Sciences, Kashirskoe Shosse 24, Moscow 115478, Russia
| | - M V Kiselevsky
- Blokhin Russian Cancer Research Center of the Russian Academy of Medical Sciences, Kashirskoe Shosse 24, Moscow 115478, Russia
| | - I V Sukhorukova
- National University of Science and Technology "MISIS", Leninsky Prospect 4, Moscow 119049, Russia.
| | - N V Shvindina
- National University of Science and Technology "MISIS", Leninsky Prospect 4, Moscow 119049, Russia
| | - D V Shtansky
- National University of Science and Technology "MISIS", Leninsky Prospect 4, Moscow 119049, Russia.
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49
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Saito MT, Silvério KG, Casati MZ, Sallum EA, Jr FHN. Tooth-derived stem cells: Update and perspectives. World J Stem Cells 2015; 7:399-407. [PMID: 25815123 PMCID: PMC4369495 DOI: 10.4252/wjsc.v7.i2.399] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 10/22/2014] [Accepted: 11/10/2014] [Indexed: 02/06/2023] Open
Abstract
Tissue engineering is an emerging field of science that focuses on creating suitable conditions for the regeneration of tissues. The basic components for tissue engineering involve an interactive triad of scaffolds, signaling molecules, and cells. In this context, stem cells (SCs) present the characteristics of self-renewal and differentiation capacity, which make them promising candidates for tissue engineering. Although they present some common markers, such as cluster of differentiation (CD)105, CD146 and STRO-1, SCs derived from various tissues have different patterns in relation to proliferation, clonogenicity, and differentiation abilities in vitro and in vivo. Tooth-derived tissues have been proposed as an accessible source to obtain SCs with limited morbidity, and various tooth-derived SCs (TDSCs) have been isolated and characterized, such as dental pulp SCs, SCs from human exfoliated deciduous teeth, periodontal ligament SCs, dental follicle progenitor cells, SCs from apical papilla, and periodontal ligament of deciduous teeth SCs. However, heterogeneity among these populations has been observed, and the best method to select the most appropriate TDSCs for regeneration approaches has not yet been established. The objective of this review is to outline the current knowledge concerning the various types of TDSCs, and discuss the perspectives for their use in regenerative approaches.
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50
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Tran HLB, Doan VN. Human dental pulp stem cells cultured onto dentin derived scaffold can regenerate dentin-like tissue in vivo. Cell Tissue Bank 2015; 16:559-68. [PMID: 25700693 DOI: 10.1007/s10561-015-9503-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 02/18/2015] [Indexed: 12/30/2022]
Abstract
Regeneration of dentin tissues in the pulp space of teeth serves the ultimate goal of preserving teeth via endodontic approaches. In recent times, many studies suggested that human dentin scaffolds combined with dental stem cells was a potential strategy for the complete dentin tissue regeneration. In this study, human dental pulp stem cells (DPSCs) were isolated and cultured. Dentin specimens were prepared from human third molars and treated with ethylene diamine tetra-acetic acid and citric acid to remove the smear layer. Then, DPSCs were cultured onto human treated dentin (hTD) and implanted in mouse model for 4, 6 and 8 weeks. The resulting grafts were assessed by hematoxylin and eosin stain and immunohistochemical stains. As a result, DPSCs were supported and induced to regenerate of dentin-like tissues which expressed specific dentin markers such as dentin sialophosphoprotein and dentin matrix protein 1 by combination with hTD in vivo. Furthermore, cells existed in the newly-formed dentin-like tissues also expressed typical human mitochondria antibodies, demonstrated that new tissues originated from human. In conclusion, the obtain results extend hopefully newly-established therapy to apply in endodontics and traumatic dental hard tissues.
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Affiliation(s)
- Ha Le Bao Tran
- Department of Physiology and Animal Biotechnology, Faculty of Biology, University of Science, Vietnam National University at Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5, Ho Chi Minh City, Vietnam.
| | - Vu Nguyen Doan
- Department of Physiology and Animal Biotechnology, Faculty of Biology, University of Science, Vietnam National University at Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5, Ho Chi Minh City, Vietnam
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