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Wang J, Zhao Z, Yang K, Bai Y. Research progress in cell therapy for oral diseases: focus on cell sources and strategies to optimize cell function. Front Bioeng Biotechnol 2024; 12:1340728. [PMID: 38515628 PMCID: PMC10955105 DOI: 10.3389/fbioe.2024.1340728] [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: 11/20/2023] [Accepted: 02/23/2024] [Indexed: 03/23/2024] Open
Abstract
In recent years, cell therapy has come to play an important therapeutic role in oral diseases. This paper reviews the active role of mesenchymal stem cells, immune cell sources, and other cells in oral disorders, and presents data supporting the role of cell therapy in oral disorders, including bone and tooth regeneration, oral mucosal disorders, oral soft tissue defects, salivary gland dysfunction, and orthodontic tooth movement. The paper will first review the progress of cell optimization strategies for oral diseases, including the use of hormones in combination with stem cells, gene-modified regulatory cells, epigenetic regulation of cells, drug regulation of cells, cell sheets/aggregates, cell-binding scaffold materials and hydrogels, nanotechnology, and 3D bioprinting of cells. In summary, we will focus on the therapeutic exploration of these different cell sources in oral diseases and the active application of the latest cell optimization strategies.
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Affiliation(s)
| | | | | | - Yuxing Bai
- Department of Orthodontics, School of Stomatology, Beijing Stomatological Hospital, Capital Medical University, Beijing, China
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2
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Ball JR, Shelby T, Hernandez F, Mayfield CK, Lieberman JR. Delivery of Growth Factors to Enhance Bone Repair. Bioengineering (Basel) 2023; 10:1252. [PMID: 38002376 PMCID: PMC10669014 DOI: 10.3390/bioengineering10111252] [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: 09/15/2023] [Revised: 10/20/2023] [Accepted: 10/25/2023] [Indexed: 11/26/2023] Open
Abstract
The management of critical-sized bone defects caused by nonunion, trauma, infection, malignancy, pseudoarthrosis, and osteolysis poses complex reconstruction challenges for orthopedic surgeons. Current treatment modalities, including autograft, allograft, and distraction osteogenesis, are insufficient for the diverse range of pathology encountered in clinical practice, with significant complications associated with each. Therefore, there is significant interest in the development of delivery vehicles for growth factors to aid in bone repair in these settings. This article reviews innovative strategies for the management of critical-sized bone loss, including novel scaffolds designed for controlled release of rhBMP, bioengineered extracellular vesicles for delivery of intracellular signaling molecules, and advances in regional gene therapy for sustained signaling strategies. Improvement in the delivery of growth factors to areas of significant bone loss has the potential to revolutionize current treatment for this complex clinical challenge.
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Affiliation(s)
- Jacob R. Ball
- Department of Orthopaedic Surgery, University of Southern California Keck School of Medicine, 1500 San Pablo St., Los Angeles, CA 90033, USA
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3
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Deering J, Lin DSY, D'Elia A, Zhang B, Grandfield K. Fabrication of succinate-alginate xerogel films for in vitro coupling of osteogenesis and neovascularization. BIOMATERIALS ADVANCES 2022; 141:213122. [PMID: 36162345 DOI: 10.1016/j.bioadv.2022.213122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 08/30/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
The osseointegration of metallic implants is reliant on a cascade of molecular interactions and the delivery of macromolecules to the implant environment that occurs before substantial bone formation. Early blood vessel formation is a requisite first step in the healing timeline for osteoid formation, where vascular development can be accelerated as a result of controlled hypoxic conditioning. In this study, alginate-derived xerogel films containing varied concentrations of disodium succinate salt which has been shown to induce pseudohypoxia (short-term hypoxic effects while maintaining an oxygenated environment) were developed. Xerogels were characterized for their morphology, succinate release over time and cellular response with osteoblast-mimicking Saos-2 and human umbilical vein endothelial cells (HUVEC). Scanning electron microscopy revealed a multiscale topography that may favour osseointegration and alamarBlue assays indicated no cytotoxic effects during in vitro proliferation of Saos-2 cells. pH measurements of eluted succinate reach 95 % of peak value after 7 h of immersion for all gels containing 10 mM of succinate or less, and 60 % within the first 40 min. In vitro exposure of HUVECs to succinate-conditioned media increased the net concentration of total proteins measured by bicinchoninic acid (BCA) assay and maintains stable vascular endothelial growth factor (VEGF) and extracellular platelet-derived growth factor (PDGF) for vessel formation through comparison of enzyme-linked immunosorbent assays (ELISAs) of the culture media and cell lysate. Tube formation assays also showed a sustained increase in tube diameter across the first 48 h of HUVEC culture when succinate concentrations of 1 and 10 μM in the xerogel. Overall, the succinate-alginate films serve as a prospective organic coating for bone-interfacing implant materials which may induce temporary pseudohypoxic conditions favourable for early angiogenesis and bone regeneration in vivo at succinate concentrations of 1 or 10 μM.
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Affiliation(s)
- Joseph Deering
- Department of Materials Science and Engineering, McMaster University, Hamilton, ON, Canada
| | - Dawn S Y Lin
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
| | - Andrew D'Elia
- Department of Materials Science and Engineering, McMaster University, Hamilton, ON, Canada
| | - Boyang Zhang
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada; School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada
| | - Kathryn Grandfield
- Department of Materials Science and Engineering, McMaster University, Hamilton, ON, Canada; School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada; Brockhouse Institute for Materials Research, McMaster University, Hamilton, ON, Canada.
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4
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Sun R, Bai L, Yang Y, Ding Y, Zhuang J, Cui J. Nervous System-Driven Osseointegration. Int J Mol Sci 2022; 23:ijms23168893. [PMID: 36012155 PMCID: PMC9408825 DOI: 10.3390/ijms23168893] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 11/16/2022] Open
Abstract
Implants are essential therapeutic tools for treating bone fractures and joint replacements. Despite the in-depth study of osseointegration for more than fifty years, poor osseointegration caused by aseptic loosening remains one of the leading causes of late implant failures. Osseointegration is a highly sophisticated and spatiotemporal process in vivo involving the immune response, angiogenesis, and osteogenesis. It has been unraveled that the nervous system plays a pivotal role in skeletal health via manipulating neurotrophins, neuropeptides, and nerve cells. Herein, the research related to nervous system-driven osseointegration was systematically analyzed and reviewed, aiming to demonstrate the prominent role of neuromodulation in osseointegration. Additionally, it is indicated that the implant design considering the role of neuromodulation might be a promising way to prevent aseptic loosening.
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Affiliation(s)
- Ruoyue Sun
- Key Laboratory for Ultrafine Materials of Ministry of Education, College of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Long Bai
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
- Correspondence: (J.C.); (L.B.)
| | - Yaru Yang
- College of Materials and Textile Engineering, Jiaxing University, Jiaxing 314001, China
| | - Yanshu Ding
- Key Laboratory for Ultrafine Materials of Ministry of Education, College of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jingwen Zhuang
- Key Laboratory for Ultrafine Materials of Ministry of Education, College of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jingyuan Cui
- Key Laboratory for Ultrafine Materials of Ministry of Education, College of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, China
- Correspondence: (J.C.); (L.B.)
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5
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Wisitrasameewong W, Champaiboon C, Surisaeng T, Sa-Ard-Iam N, Freire M, Pardi N, Pichyangkul S, Mahanonda R. The Impact of mRNA Technology in Regenerative Therapy: Lessons for Oral Tissue Regeneration. J Dent Res 2022; 101:1015-1024. [PMID: 35319289 DOI: 10.1177/00220345221084205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Oral tissue regeneration following chronic diseases and injuries is limited by the natural endogenous wound-healing process. Current regenerative approaches implement exogenous systems, including stem cells, scaffolds, growth factors, and plasmid DNA/viral vectors, that induce variable clinical outcomes. An innovative approach that is safe, effective, and inexpensive is needed. The lipid nanoparticle-encapsulated nucleoside-modified messenger RNA (mRNA) platform has proven to be a successful vaccine modality against coronavirus disease 2019, demonstrating safety and high efficacy in humans. The same fundamental technology platform could be applied to facilitate the development of mRNA-based regenerative therapy. While the platform has not yet been studied in the field of oral tissue regeneration, mRNA therapeutics encoding growth factors have been evaluated and demonstrated promising findings in various models of soft and hard tissue regeneration such as myocardial infarction, diabetic wound healing, and calvarial and femoral bone defects. Because restoration of both soft and hard tissues is crucial to oral tissue physiology, this new therapeutic modality may help to overcome challenges associated with the reconstruction of the unique and complex architecture of oral tissues. This review discusses mRNA therapeutics with an emphasis on findings and lessons in different regenerative animal models, and it speculates how we can apply mRNA-based platforms for oral tissue regeneration.
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Affiliation(s)
- W Wisitrasameewong
- Department of Periodontology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.,Center of Excellence in Periodontal Disease and Dental Implant, Chulalongkorn University, Bangkok, Thailand.,Immunology Research Center, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - C Champaiboon
- Department of Periodontology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.,Center of Excellence in Periodontal Disease and Dental Implant, Chulalongkorn University, Bangkok, Thailand.,Immunology Research Center, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - T Surisaeng
- Department of Conservative Dentistry, Faculty of Dentistry, Prince of Songkhla University, Songkhla, Thailand
| | - N Sa-Ard-Iam
- Center of Excellence in Periodontal Disease and Dental Implant, Chulalongkorn University, Bangkok, Thailand.,Immunology Research Center, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - M Freire
- Genomic Medicine and Infectious Diseases, J. Craig Venter Institute, La Jolla, CA, USA
| | - N Pardi
- Department of Microbiology, University of Pennsylvania, Philadelphia, PA, USA
| | - S Pichyangkul
- Department of Bacterial and Parasitic Diseases, AFRIMS, Bangkok, Thailand
| | - R Mahanonda
- Department of Periodontology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.,Center of Excellence in Periodontal Disease and Dental Implant, Chulalongkorn University, Bangkok, Thailand.,Immunology Research Center, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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6
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Qu C, Luo F, Hong G, Wan Q. Effects of platelet concentrates on implant stability and marginal bone loss: a systematic review and meta-analysis. BMC Oral Health 2021; 21:579. [PMID: 34772376 PMCID: PMC8588658 DOI: 10.1186/s12903-021-01929-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 10/21/2021] [Indexed: 01/08/2023] Open
Abstract
Background Osseointegration is essential for the success and stability of implants. Platelet concentrates were reported to enhance osseointegration and improve implant stability. The purpose of this review is to systematically analyze the effects of platelet concentrates on implant stability and marginal bone loss. Methods Two researchers independently performed searches in the following databases (last searched on 21 July 2021): MEDLINE (PubMed), Cochrane Library, EMBASE, and Web of Science. In addition, a manual search was carried out on references of relevant reviews and initially included studies. All randomized controlled trials (RCTs) and controlled clinical trials (CCTs) on the application of platelet concentrates in the implant surgery procedure were included. The risk of bias of RCTs and CCTs were assessed with a revised Cochrane risk of bias tool for randomized trials (RoB 2.0) and the risk of bias in non-randomized studies—of interventions (ROBINS-I) tool, respectively. Meta-analyses on implant stability and marginal bone loss were conducted. Researchers used mean difference or standardized mean difference as the effect size and calculated the 95% confidence interval. In addition, subgroup analysis was performed based on the following factors: type of platelet concentrates, method of application, and study design. Results Fourteen studies with 284 participants and 588 implants were included in the final analysis. 11 studies reported implant stability and 5 studies reported marginal bone level or marginal bone loss. 3 studies had high risk of bias. The meta-analysis results showed that platelet concentrates can significantly increase implant stability at 1 week (6 studies, 302 implants, MD 4.26, 95% CI 2.03–6.49, P < 0.001) and 4 weeks (8 studies, 373 implants, MD 0.67, 95% CI 0.46–0.88, P < 0.001) after insertion, significantly reduced marginal bone loss at 3 months after insertion (4 studies, 95 implants, mesial: MD − 0.33, 95% CI − 0.46 to − 0.20, P < 0.001; distal: MD − 0.38, 95% CI − 0.54 to − 0.22, P < 0.001). However, the improvement of implant stability at 12 weeks after insertion was limited (P = 0.10). Subgroup analysis showed that PRP did not significantly improve implant stability at 1 week and 4 weeks after insertion (P = 0.38, P = 0.17). Platelet concentrates only placed in the implant sites did not significantly improve implant stability at 1 week after insertion (P = 0.20). Conclusions Platelet concentrates can significantly improve implant stability and reduce marginal bone loss in the short term. Large-scale studies with long follow‐up periods are required to explore their long-term effects and compare effects of different types. Trial registration This study was registered on PROSPERO, with the Registration Number being CRD42021270214. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-021-01929-x.
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Affiliation(s)
- Changxing Qu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Feng Luo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Guang Hong
- Liaison Center for Innovative Dentistry, Graduate School of Dentistry, Tohoku University, Sendai, Japan.,Department of Prosthetic Dentistry, Faculty of Dental Medicine, Airlangga University, Surabaya, Indonesia
| | - Qianbing Wan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
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7
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Kashefimehr A, Rahbar M, Faramarzi M, Babaloo A, Sadighi M, Goshaderoo A. Effect of Light Emitting Diode Photobiomodulation on the Stability of Dental Implants in Bone Grafted Cases: a Split-Mouth Randomized Clinical Trial. MÆDICA 2021; 16:223-229. [PMID: 34621344 DOI: 10.26574/maedica.2021.16.2.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Introduction: The high success rate of implants has made implant-based prostheses attractive to edentulous patients. Osseointegration lasts 4-6 months, increasing to 6-8 months in cases requiring bone grafts and guided bone regeneration. Many efforts have been made to accelerate osseointegration, including low level laser (LLL) and light emitting diode (LED) photobiomodulation. Material and methods:Twelve patients underwent bimaxillary immediate implant surgery with particulate bone grafts between the socket wall and the implant, and the transmucosal abutment was attached on implants at the same time. The intervention side was exposed to LED radiation for 20 minutes a day one day preoperatively and 10 consecutive sessions, starting from the day of surgery. A trained operator measured and recorded the implant stability quotient (ISQ) value on both sides immediately after surgery as well as one month and three months postoperatively. Results: The ISQ value was 37.54 on the non-irradiated side immediately after surgery; it decreased to 35.09 one month postoperatively and increased to 46.45 at three months after the operation. The ISQ value was 36.73 on the irradiated side immediately after surgery and it increased to 47.36 and 71.18 at one month and three months postoperatively, respectively. There were significant differences between the ISQ values on the irradiated side at all the three time intervals, but also a significant difference on the non-irradiated side, except for two other two time intervals of immediately and one month after surgery. Although there was no significant difference between the two sides in terms of the ISQ value immediately after surgery, the ISQ value was significantly higher on the irradiated versus non-irradiated side at one month and three months postoperatively. Conclusion:Low level laser radiation resulted in a favorable increase in the ISQ value in three months. Light emitting diode has lso led to a clinically significant increase in the ISQ value after three months because implants with ISQ values >54 could be loaded.
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Affiliation(s)
- Atabak Kashefimehr
- Dental and Periodontal Research Center, Department of Periodontics, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Rahbar
- Department of Restorative Dentistry, School of Dentistry, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Masoumeh Faramarzi
- Dental and Periodontal Research Center, Department of Periodontics, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirreza Babaloo
- Dental and Periodontal Research Center, Department of Periodontics, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehrnoosh Sadighi
- Dental and Periodontal Research Center, Department of Periodontics, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abbas Goshaderoo
- Dental and Periodontal Research Center, Department of Periodontics, Dental School, Tabriz University of Medical Sciences, Tabriz, Iran
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8
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Latimer JM, Maekawa S, Yao Y, Wu DT, Chen M, Giannobile WV. Regenerative Medicine Technologies to Treat Dental, Oral, and Craniofacial Defects. Front Bioeng Biotechnol 2021; 9:704048. [PMID: 34422781 PMCID: PMC8378232 DOI: 10.3389/fbioe.2021.704048] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 06/29/2021] [Indexed: 01/10/2023] Open
Abstract
Additive manufacturing (AM) is the automated production of three-dimensional (3D) structures through successive layer-by-layer deposition of materials directed by computer-aided-design (CAD) software. While current clinical procedures that aim to reconstruct hard and soft tissue defects resulting from periodontal disease, congenital or acquired pathology, and maxillofacial trauma often utilize mass-produced biomaterials created for a variety of surgical indications, AM represents a paradigm shift in manufacturing at the individual patient level. Computer-aided systems employ algorithms to design customized, image-based scaffolds with high external shape complexity and spatial patterning of internal architecture guided by topology optimization. 3D bioprinting and surface modification techniques further enhance scaffold functionalization and osteogenic potential through the incorporation of viable cells, bioactive molecules, biomimetic materials and vectors for transgene expression within the layered architecture. These computational design features enable fabrication of tissue engineering constructs with highly tailored mechanical, structural, and biochemical properties for bone. This review examines key properties of scaffold design, bioresorbable bone scaffolds produced by AM processes, and clinical applications of these regenerative technologies. AM is transforming the field of personalized dental medicine and has great potential to improve regenerative outcomes in patient care.
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Affiliation(s)
- Jessica M Latimer
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, United States
| | - Shogo Maekawa
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, United States.,Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yao Yao
- Department of Periodontics & Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, United States.,Biointerfaces Institute, University of Michigan, Ann Arbor, MI, United States
| | - David T Wu
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, United States.,Laboratory for Cell and Tissue Engineering, Harvard John A. Paulson School of Engineering and Applied Sciences, Boston, MA, United States.,Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, United States
| | - Michael Chen
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, United States
| | - William V Giannobile
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, United States
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9
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Kligman S, Ren Z, Chung CH, Perillo MA, Chang YC, Koo H, Zheng Z, Li C. The Impact of Dental Implant Surface Modifications on Osseointegration and Biofilm Formation. J Clin Med 2021; 10:1641. [PMID: 33921531 PMCID: PMC8070594 DOI: 10.3390/jcm10081641] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/26/2021] [Accepted: 04/06/2021] [Indexed: 12/11/2022] Open
Abstract
Implant surface design has evolved to meet oral rehabilitation challenges in both healthy and compromised bone. For example, to conquer the most common dental implant-related complications, peri-implantitis, and subsequent implant loss, implant surfaces have been modified to introduce desired properties to a dental implant and thus increase the implant success rate and expand their indications. Until now, a diversity of implant surface modifications, including different physical, chemical, and biological techniques, have been applied to a broad range of materials, such as titanium, zirconia, and polyether ether ketone, to achieve these goals. Ideal modifications enhance the interaction between the implant's surface and its surrounding bone which will facilitate osseointegration while minimizing the bacterial colonization to reduce the risk of biofilm formation. This review article aims to comprehensively discuss currently available implant surface modifications commonly used in implantology in terms of their impact on osseointegration and biofilm formation, which is critical for clinicians to choose the most suitable materials to improve the success and survival of implantation.
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Affiliation(s)
- Stefanie Kligman
- School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA;
| | - Zhi Ren
- Biofilm Research Laboratories, Department of Orthodontics, Divisions of Pediatric Dentistry & Community Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; (Z.R.); (H.K.)
| | - Chun-Hsi Chung
- Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; (C.-H.C.); (M.A.P.)
| | - Michael Angelo Perillo
- Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; (C.-H.C.); (M.A.P.)
| | - Yu-Cheng Chang
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA;
| | - Hyun Koo
- Biofilm Research Laboratories, Department of Orthodontics, Divisions of Pediatric Dentistry & Community Oral Health, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; (Z.R.); (H.K.)
- Center for Innovation & Precision Dentistry, School of Dental Medicine and School of Engineering & Applied Sciences, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Zhong Zheng
- Division of Growth and Development, Section of Orthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Chenshuang Li
- Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; (C.-H.C.); (M.A.P.)
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10
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A biomimetic engineered bone platform for advanced testing of prosthetic implants. Sci Rep 2020; 10:22154. [PMID: 33335113 PMCID: PMC7747643 DOI: 10.1038/s41598-020-78416-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 11/09/2020] [Indexed: 02/08/2023] Open
Abstract
Existing methods for testing prosthetic implants suffer from critical limitations, creating an urgent need for new strategies that facilitate research and development of implants with enhanced osseointegration potential. Herein, we describe a novel, biomimetic, human bone platform for advanced testing of implants in vitro, and demonstrate the scientific validity and predictive value of this approach using an assortment of complementary evaluation methods. We anchored titanium (Ti) and stainless steel (SS) implants into biomimetic scaffolds, seeded with human induced mesenchymal stem cells, to recapitulate the osseointegration process in vitro. We show distinct patterns of gene expression, matrix deposition, and mineralization in response to the two materials, with Ti implants ultimately resulting in stronger integration strength, as seen in other preclinical and clinical studies. Interestingly, RNAseq analysis reveals that the TGF-beta and the FGF2 pathways are overexpressed in response to Ti implants, while the Wnt, BMP, and IGF pathways are overexpressed in response to SS implants. High-resolution imaging shows significantly increased tissue mineralization and calcium deposition at the tissue-implant interface in response to Ti implants, contributing to a twofold increase in pullout strength compared to SS implants. Our technology creates unprecedented research opportunities towards the design of implants and biomaterials that can be personalized, and exhibit enhanced osseointegration potential, with reduced need for animal testing.
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11
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Elangovan S, Gajendrareddy P, Ravindran S, Salem AK. Emerging local delivery strategies to enhance bone regeneration. ACTA ACUST UNITED AC 2020; 15:062001. [PMID: 32647095 PMCID: PMC10148649 DOI: 10.1088/1748-605x/aba446] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In orthopedics and dentistry there is an increasing need for novel biomaterials and clinical strategies to achieve predictable bone regeneration. These novel molecular strategies have the potential to eliminate the limitations of currently available approaches. Specifically, they have the potential to reduce or eliminate the need to harvest autogenous bone, and the overall complexity of the clinical procedures. In this review, emerging tissue engineering strategies that have been, or are currently being, developed based on the current understanding of bone biology, development and wound healing will be discussed. In particular, protein/peptide based approaches, DNA/RNA therapeutics, cell therapy, and the use of exosomes will be briefly covered. The review ends with a summary of the current status of these approaches, their clinical translational potentials and their challenges.
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Affiliation(s)
- Satheesh Elangovan
- Department of Periodontics, The University of Iowa College of Dentistry, Iowa City, IA 52242, United States of America
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12
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RhPDGF – Basic Characteristics and Potential Application in the Oral Surgery – An Overview. ACTA MEDICA BULGARICA 2020. [DOI: 10.2478/amb-2020-0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract
Growth factors (GFs) are bioactive molecules participating in organ development, tissue regeneration and repair. They are protein molecules with a relatively low molecular weight and are released by activated platelets. Platelet-derived growth factor (PDGF) is one of the GFs of highest amount in human platelets. It is known to stimulate cell proliferation and extracellular matrix synthesis, as well as angiogenesis in healthy tissues and neoplasms. However, most of the studies in the literature demonstrate the influence of PDGF on tissue regeneration without revealing its intimate mechanisms of action on different cell types. In the current review we emphasis on the effects of PDGF in order to stimulate various biological processes in wide number of pre-clinical and clinical studies.
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13
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Trybek G, Jedliński M, Jaroń A, Preuss O, Mazur M, Grzywacz A. Impact of lactoferrin on bone regenerative processes and its possible implementation in oral surgery - a systematic review of novel studies with metanalysis and metaregression. BMC Oral Health 2020; 20:232. [PMID: 32843024 PMCID: PMC7448436 DOI: 10.1186/s12903-020-01211-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 08/09/2020] [Indexed: 12/17/2022] Open
Abstract
Background Lactoferrin is an iron – binding glycoprotein with anti-inflammatory and anabolic properties found in many internal fluids. It is worth looking at novel studies, because of their methodology and observations that may once be applicable in modern implantology. The aim of the study is to answer the question if lactoferrin is a promising factor for bone regenerative process in oral surgery. Method An electronic search was conducted on 14th October 2019 on the PubMed, Scopus and Web of Science databases. The keywords used in the search strategy were: lactoferrin AND bone regeneration AND oral surgery. The qualitative evaluation was conducted using the Jadad and Newcastle-Ottawa Quality Assessment Form. Then a metanalysis of a new bone growth and percentage of the resorbed graft were performed with the metaregression of lactoferrin dose to its outcome effects on bone regeneration. Results The search strategy identified potential articles: 133 from PubMed, 2 from Scopus, 4 from Web of science. After removal of duplicates, 136 articles were analyzed. Subsequently, 131 papers were excluded because they did not meet the inclusion criteria. The remaining 5 papers were included in the qualitative synthesis. The use of lactoferrin clearly increases the growth of a newly formed bone (2.58, CI:[0.79, 4.37]), as well as shortens the time of the graft resorption (− 1.70, Cl:[3.43, 0.03]) and replaces it with a species-specific bone. Heterogeneity is significant at p < 0.001 level. Metaregression indicates that one unit increase in the log (Treatment dose), i.e. a 2.78 times increase of the Treatment dose, results in an increase of the Effect size by 0.682. Conclusions The use of lactoferrin both systemically and locally promotes anabolic processes (new bone formation). There is a relationship between the increase in administered dose of lactoferrin and the intensity of new bone formation. However, it is not only necessary to continue experimental research, but also to extend it to the clinical studies on patients, due to the limitations of different animal model research and different methodology, to introduce lactoferrin as a standard procedure for the treatment of bone defects, because it is a promising product.
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Affiliation(s)
- Grzegorz Trybek
- Department of Oral Surgery, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72/18, 70-111, Szczecin, Poland
| | - Maciej Jedliński
- Department of Oral and Maxillo Facial Sciences, Sapienza University of Rome, Via Caserta 6, 00161, Rome, Italy.,Student Scientific Society at the Department of Oral Surgery, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72/18, 70-111, Szczecin, Poland
| | - Aleksandra Jaroń
- Department of Oral Surgery, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72/18, 70-111, Szczecin, Poland.
| | - Olga Preuss
- Department of Oral Surgery, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72/18, 70-111, Szczecin, Poland
| | - Marta Mazur
- Department of Oral and Maxillo Facial Sciences, Sapienza University of Rome, Via Caserta 6, 00161, Rome, Italy
| | - Anna Grzywacz
- Independent Laboratory of Health Promotion, Pomeranian Medical University in Szczecin, ul. Gen. Dezyderego Chłapowskiego 11, 70-103, Szczecin, Poland
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Bone Marrow Mesenchymal Stromal Cells (BMMSCs) Augment Osteointegration of Dental Implants in Type 1 Diabetic Rabbits: An X-Ray Micro-Computed Tomographic Evaluation. MEDICINA-LITHUANIA 2020; 56:medicina56040148. [PMID: 32218375 PMCID: PMC7230266 DOI: 10.3390/medicina56040148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/19/2020] [Accepted: 03/19/2020] [Indexed: 01/13/2023]
Abstract
Background and objectives: The study aimed to investigate the effect of bone marrow mesenchymal stromal cells (BMMSCs) on implant-bone osseointegration in type I diabetic New Zealand rabbits. Materials and methods: BMMSCs harvested from healthy rabbits were processed and validated for purity and osteocyte differentiability. Mandibular incisors of diabetic and control rabbits were carefully extracted, and the sockets were plugged with collagen sponges. Platelet-rich plasma (PRP) containing osteoinductive BMMSCs, and plain PRP were injected into the collagen sponge of the right and left sockets respectively. Dental implants of 2.6 mm diameter and 10 mm length were inserted into the collagen sponge of both sockets. All the animals were sacrificed six weeks post surgery to evaluate an early stage of osseointegration; the mandibles scanned by X-ray microcomputed tomography (μCT) and subjected to 3D analysis. The μCT parameters of the right implant were paired against that of the left side of each animal and analyzed by paired T-test. Results: The preclinical evaluation of the viability and osteocyte differentiation of the BMMSCs were consistent between both the donor samples. The osseointegration of dental implants with stem cell therapy (BMMSCs + PRP + collagen) in normal and diabetic rabbits was significantly higher than that of implants with adjunctive PRP + collagen only (p < 0.05). Conclusion: Stem Cell therapy with osteoinductive BMMSCs and PRP can offer a novel approach to enhance the osseointegration of dental implants in uncontrolled diabetic patients.
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Özveri Koyuncu B, İçpınar Çelik K, Özden Yüce M, Günbay T, Çömlekoğlu ME. The role of concentrated growth factor on implant stability: A preliminary study. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2019; 121:363-367. [PMID: 31476535 DOI: 10.1016/j.jormas.2019.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/16/2019] [Accepted: 08/25/2019] [Indexed: 02/04/2023]
Abstract
PURPOSE The purpose of this preliminary study was to evaluate the effect of concentrated growth factor (CGF) on dental implant stability in type 2 bone using the resonance frequency analysis (RFA) device Smartpeg®. METHODS The researchers carried out a prospective cohort study on a sample group composed of 12 patients (mean age=67) who required dental implants. Implant socket preparation (with and without CGF) was the primary predictor variable. In each patient, two dental implants were inserted in the anterior mandible. For the test group, one dental implant socket was covered with CGF membrane, while the other socket was prepared conventionally for the control group. Implant stability, as measured by RFA, was the outcome variable. Measurements were taken using the Ostell device at the time of implant placement and at the 1st, 2nd and 4th weeks. RESULTS Mean implant stability quotients (ISQs) were 67.00±4.573 for the study group and 64.75±5.065 for the control group. The difference between the two groups was not statistically significant. CONCLUSION It was found that CGF did not provide beneficial effect on dental implant stability in the early healing period in type 2 bone.
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Affiliation(s)
- B Özveri Koyuncu
- Department of Oral Surgery, School of Dentistry, Ege University, 35040, Bornova, İzmir, Turkey.
| | - K İçpınar Çelik
- Katip Çelebi University, Atatürk Training and Research Hospital, 35360, Çiğli, İzmir, Turkey.
| | - M Özden Yüce
- Department of Oral Surgery, School of Dentistry, Ege University, 35040, Bornova, İzmir, Turkey.
| | - T Günbay
- Department of Oral Surgery, School of Dentistry, Ege University, 35040, Bornova, İzmir, Turkey.
| | - M E Çömlekoğlu
- Department of Prosthodontics, School of Dentistry, Ege University, 35040, Bornova, İzmir, Turkey.
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Goker F, Larsson L, Del Fabbro M, Asa'ad F. Gene Delivery Therapeutics in the Treatment of Periodontitis and Peri-Implantitis: A State of the Art Review. Int J Mol Sci 2019; 20:ijms20143551. [PMID: 31330797 PMCID: PMC6679027 DOI: 10.3390/ijms20143551] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/15/2019] [Accepted: 07/16/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Periodontal disease is a chronic inflammatory condition that affects supporting tissues around teeth, resulting in periodontal tissue breakdown. If left untreated, periodontal disease could have serious consequences; this condition is in fact considered as the primary cause of tooth loss. Being highly prevalent among adults, periodontal disease treatment is receiving increased attention from researchers and clinicians. When this condition occurs around dental implants, the disease is termed peri-implantitis. Periodontal regeneration aims at restoring the destroyed attachment apparatus, in order to improve tooth stability and thus reduce disease progression and subsequent periodontal tissue breakdown. Although many biomaterials have been developed to promote periodontal regeneration, they still have their own set of disadvantages. As a result, regenerative medicine has been employed in the periodontal field, not only to overcome the drawbacks of the conventional biomaterials but also to ensure more predictable regenerative outcomes with minimal complications. Regenerative medicine is considered a part of the research field called tissue engineering/regenerative medicine (TE/RM), a translational field combining cell therapy, biomaterial, biomedical engineering and genetics all with the aim to replace and restore tissues or organs to their normal function using in vitro models for in vivo regeneration. In a tissue, cells are responding to different micro-environmental cues and signaling molecules, these biological factors influence cell differentiation, migration and cell responses. A central part of TE/RM therapy is introducing drugs, genetic materials or proteins to induce specific cellular responses in the cells at the site of tissue repair in order to enhance and improve tissue regeneration. In this review, we present the state of art of gene therapy in the applications of periodontal tissue and peri-implant regeneration. PURPOSE We aim herein to review the currently available methods for gene therapy, which include the utilization of viral/non-viral vectors and how they might serve as therapeutic potentials in regenerative medicine for periodontal and peri-implant tissues.
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Affiliation(s)
- Funda Goker
- Department of Biomedical, Surgical and Dental Sciences, University of Milano, 20122 Milano, Italy
| | - Lena Larsson
- Department of Periodontology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden
| | - Massimo Del Fabbro
- Department of Biomedical, Surgical and Dental Sciences, University of Milano, 20122 Milano, Italy
- IRCCS Orthopedic Institute Galeazzi, 20161 Milano, Italy
| | - Farah Asa'ad
- Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, SE-405 30 Gothenburg, Sweden.
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Hosseinpour S, Fekrazad R, Arany PR, Ye Q. Molecular impacts of photobiomodulation on bone regeneration: A systematic review. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2019; 149:147-159. [PMID: 31002851 DOI: 10.1016/j.pbiomolbio.2019.04.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 04/16/2019] [Indexed: 12/13/2022]
Abstract
Photobiomodulation (PBM) encompasses a light application aimed to increase healing process, tissue regeneration, and reducing inflammation and pain. PBM is specifically aimed to modify the expression of cellular molecules; however, PBM impacts on cellular and molecular pathways especially in bone regenerative medicine have been investigated in scattered different studies. The purpose of the current study is to systematically review evidence on molecular impact of PBM on bone regeneration. A comprehensive electronic search in Medline, Scopus, EMBASE, EBSCO, Cochrane library, web of science, and google scholar was conducted from January 1975 to October 2018 limited to English language publications on administrations of photobiomodulation for bone regeneration which evaluated biological factors. In addition, hand search of selected journals was done to retrieve all articles. This systematic review was performed based on PRISMA guideline. Among these studies, five articles reported in vitro results, twelve articles were in vivo, and three of them were clinical trials. The data tabulated according to the type of markers (osteogenic markers, angiogenic markers, growth factors, and inflammation mediators). PBM's effects depend on many parameters which energy density is more important than the others. PBM can significantly enhance expression of osteocalcin, collagen, RUNX-2, vascular endothelial growth factor, bone morphogenic proteins, and COX-2. Although since the heterogeneity of the studies and their limitations, an evidence-based decision for definite therapeutic application of PBM is still unattainable, the findings of our review can help other researchers to ameliorate their study design and elect more efficient approach for their investigation.
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Affiliation(s)
- Sepanta Hosseinpour
- School of Dentistry, The University of Queensland, Brisbane, Queensland 4006, Australia; Department of Periodontology, Dental Faculty - Laser Research Center in Medical Sciences, AJA University of Medical Sciences, 19839, Fatemi, Tehran, Iran.
| | - Reza Fekrazad
- Department of Periodontology, Dental Faculty - Laser Research Center in Medical Sciences, AJA University of Medical Sciences, 19839, Fatemi, Tehran, Iran; International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Praveen R Arany
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, The State University of New York, NY, 14214, USA.
| | - Qingsong Ye
- School of Dentistry, The University of Queensland, Brisbane, Queensland 4006, Australia.
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18
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Carmagnola D, Pellegrini G, Dellavia C, Rimondini L, Varoni E. Tissue engineering in periodontology: Biological mediators for periodontal regeneration. Int J Artif Organs 2019; 42:241-257. [DOI: 10.1177/0391398819828558] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Teeth and the periodontal tissues represent a highly specialized functional system. When periodontal disease occurs, the periodontal complex, composed by alveolar bone, root cementum, periodontal ligament, and gingiva, can be lost. Periodontal regenerative medicine aims at recovering damaged periodontal tissues and their functions by different means, including the interaction of bioactive molecules, cells, and scaffolds. The application of growth factors, in particular, into periodontal defects has shown encouraging effects, driving the wound healing toward the full, multi-tissue periodontal regeneration, in a precise temporal and spatial order. The aim of the present comprehensive review is to update the state of the art concerning tissue engineering in periodontology, focusing on biological mediators and gene therapy.
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Affiliation(s)
- Daniela Carmagnola
- Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università degli Studi di Milano, Milano, Italy
| | - Gaia Pellegrini
- Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università degli Studi di Milano, Milano, Italy
| | - Claudia Dellavia
- Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università degli Studi di Milano, Milano, Italy
| | - Lia Rimondini
- Dipartimento di Scienze della Salute, Università del Piemonte Orientale “Amedeo Avogadro,” Novara, Italy
- Center for Translational Research on Autoimmune & Allergic Diseases, CAAD, Università del Piemonte Orientale “Amedeo Avogadro,” Novara, Italy
| | - Elena Varoni
- Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università degli Studi di Milano, Milano, Italy
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19
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Liu W, Chen B, Zheng Y, Shi Y, Shi Z. Effect of Platelet-rich Plasma on Implant Bone Defects in Rabbits Through the FAK/PI3K/AKT Signaling Pathway. Open Life Sci 2019; 14:311-317. [PMID: 33817164 PMCID: PMC7874784 DOI: 10.1515/biol-2019-0034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 03/14/2019] [Indexed: 01/08/2023] Open
Abstract
Platelet-rich plasma (PRP) has been shown to be a beneficial growth factor for bone tissue healing and is used in implantology. The aim of this study was to investigate the effects of PRP on bone defects in rabbits. Twenty rabbits were used to establish the implant bone defect model in this study. An intrabony defect (5mm × 5mm × 3mm) was created in alveolar bone in the lower jar of each rabbit. The wound was treated with PRP. The expression of platelet-derived growth factor BB (PDGFBB) was assessed by enzyme-linked immunosorbent assay (ELISA). Focal adhesion kinase (FAK) and related phosphatidylinositol 3-kinase (PI3K)/AKT (protein kinase B) levels were measured by Western blot. The results show that PRP could significantly improve the bone healing process when compared with control, and 10% PRP could markedly increase fibroblast proliferation 48-h post treatment. PDGFBB was higher in the PRP group than that in the control group. PRP treatment also could elevate the phosphorylation of FAK and PI3K/AKT, although the inhibitor of PDGFR could reverse this trend. These results suggest that PRP treatment improves the bone healing process through the FAK/PI3K/AKT pathway.
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Affiliation(s)
- Wei Liu
- Department of Stomatology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Ben Chen
- Department of Stomatology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Youyang Zheng
- Department of Stomatology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Yuehua Shi
- School of Stomatology, Zhejiang Chinese Medical University, Binwen Road, Hangzhou, 310053, China
| | - Zhuojin Shi
- School of Stomatology, Zhejiang Chinese Medical University, Binwen Road, Hangzhou, 310053, China
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Vaquette C, Pilipchuk SP, Bartold PM, Hutmacher DW, Giannobile WV, Ivanovski S. Tissue Engineered Constructs for Periodontal Regeneration: Current Status and Future Perspectives. Adv Healthc Mater 2018; 7:e1800457. [PMID: 30146758 DOI: 10.1002/adhm.201800457] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/03/2018] [Indexed: 12/23/2022]
Abstract
The periodontium, consisting of gingiva, periodontal ligament, cementum, and alveolar bone, is a hierarchically organized tissue whose primary role is to provide physical and mechanical support to the teeth. Severe cases of periodontitis, an inflammatory condition initiated by an oral bacterial biofilm, can lead to significant destruction of soft and hard tissues of the periodontium and result in compromised dental function and aesthetics. Although current treatment approaches can limit the progression of the disease by controlling the inflammatory aspect, complete periodontal regeneration cannot be predictably achieved. Various tissue engineering approaches are investigated for their ability to control the critical temporo-spatial wound healing events that are essential for achieving periodontal regeneration. This paper reviews recent progress in the field of periodontal tissue engineering with an emphasis on advanced 3D multiphasic tissue engineering constructs (TECs) and provides a critical analysis of their regenerative potential and limitations. The review also elaborates on the future of periodontal tissue engineering, including scaffold customization for individual periodontal defects, TEC's functionalization strategies for imparting enhanced bioactivity, periodontal ligament fiber guidance, and the utilization of chair-side regenerative solutions that can facilitate clinical translation.
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Affiliation(s)
- Cedryck Vaquette
- Queensland University of Technology (QUT) Brisbane 4059 Australia
- Australian Centre in Additive Biomanufacturing Institute of Health of Biomedical Innovation Kelvin Grove 4059 Australia
- School of Dentistry The University of Queensland 88 Herston Road, Corner Bramston Terrace and Herston Road Herston QLD 4006 Australia
| | - Sophia P. Pilipchuk
- Department of Periodontics and Oral Medicine School of Dentistry University of Michigan Ann Arbor, 1011 N. University Avenue Ann Arbor MI 48109 USA
- Department of Biomedical Engineering College of Engineering University of Michigan Ann Arbor, 1101 Beal Avenue Ann Arbor MI 48109 USA
| | - P. Mark Bartold
- Dental School University of Adelaide Level 10, Adelaide Health and Medical Sciences Building Corner of North Terrace and George Street Adelaide SA 5000 Australia
| | - Dietmar W. Hutmacher
- Queensland University of Technology (QUT) Brisbane 4059 Australia
- Australian Centre in Additive Biomanufacturing Institute of Health of Biomedical Innovation Kelvin Grove 4059 Australia
| | - William V. Giannobile
- Department of Periodontics and Oral Medicine School of Dentistry University of Michigan Ann Arbor, 1011 N. University Avenue Ann Arbor MI 48109 USA
- Department of Biomedical Engineering College of Engineering University of Michigan Ann Arbor, 1101 Beal Avenue Ann Arbor MI 48109 USA
| | - Saso Ivanovski
- School of Dentistry The University of Queensland 88 Herston Road, Corner Bramston Terrace and Herston Road Herston QLD 4006 Australia
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Yu SH, Hao J, Fretwurst T, Liu M, Kostenuik P, Giannobile WV, Jin Q. Sclerostin-Neutralizing Antibody Enhances Bone Regeneration Around Oral Implants. Tissue Eng Part A 2018; 24:1672-1679. [PMID: 29921173 DOI: 10.1089/ten.tea.2018.0013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Dental implants are an important option for replacement of missing teeth. A major clinical challenge is how best to accelerate bone regeneration and reduce the healing time for functional restoration after implant placement. A sclerostin-neutralizing antibody (Scl-Ab) has been shown to enhance alveolar bone formation and fracture repair. The aim of this study was to investigate the effects of systemic administration of Scl-Ab on dental implant osseointegration and bone regeneration in an experimental alveolar ridge tooth extraction model. MATERIALS AND METHODS To investigate the effects of Scl-Ab on bone regeneration and dental implant osseointegration, an experimental alveolar bone osteotomy rat model was adopted. One month after extraction of maxillary right first molars, osteotomy defects were created at the coronal aspect of each of the extraction sites, and 1 × 2-mm custom titanium implants were installed into the osteotomies. Coincident with implant placement, Scl-Ab was administered subcutaneously at a dose of 25 mg/kg twice weekly for 10-28 days and compared with a vehicle control. Animals were sacrificed 10, 14, and 28 days after surgery, and maxillae were harvested and analyzed by microcomputed tomography (microCT), histology, and histomorphometry. RESULTS microCT analysis demonstrated that the maxillary bone volume fraction was approximately 2- to 2.5-fold greater in Scl-Ab-treated animals compared with vehicle alone at days 14 and 28. Consistent with those findings, two-dimensional bone fill percentages within the coronal osteotomy sites were highest in Scl-Ab treatment groups at 28 days. In addition, bone-implant contact at 28 days was approximately twofold greater in the Scl-Ab group compared with the vehicle control. CONCLUSIONS These results indicate that systemic Scl-Ab administration enhances osseointegration and bone regeneration around dental implants. This approach offers potential as a treatment modality for patients with low bone mass or bone defects to achieve more predictable bone regeneration at alveolar bone defects and to enhance dental implant osseointegration.
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Affiliation(s)
- Shan Huey Yu
- 1 Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan , Ann Arbor, Michigan
| | - Jie Hao
- 1 Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan , Ann Arbor, Michigan
| | - Tobias Fretwurst
- 1 Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan , Ann Arbor, Michigan.,2 Department of Oral- and Craniomaxillofacial Surgery, Faculty of Medicine, Medical Center-University of Freiburg , Freiburg, Germany
| | - Min Liu
- 3 Amgen, Inc. , Thousand Oaks, California
| | - Paul Kostenuik
- 1 Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan , Ann Arbor, Michigan.,3 Amgen, Inc. , Thousand Oaks, California.,6 Phylon Pharma Services, Newbury Park, California
| | - William V Giannobile
- 1 Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan , Ann Arbor, Michigan.,4 Department of Biomedical Engineering, College of Engineering, University of Michigan College of Engineering , Ann Arbor, Michigan
| | - Qiming Jin
- 5 Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan , Ann Arbor, Michigan
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Dang M, Saunders L, Niu X, Fan Y, Ma PX. Biomimetic delivery of signals for bone tissue engineering. Bone Res 2018; 6:25. [PMID: 30181921 PMCID: PMC6115422 DOI: 10.1038/s41413-018-0025-8] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 05/22/2018] [Accepted: 06/15/2018] [Indexed: 02/06/2023] Open
Abstract
Bone tissue engineering is an exciting approach to directly repair bone defects or engineer bone tissue for transplantation. Biomaterials play a pivotal role in providing a template and extracellular environment to support regenerative cells and promote tissue regeneration. A variety of signaling cues have been identified to regulate cellular activity, tissue development, and the healing process. Numerous studies and trials have shown the promise of tissue engineering, but successful translations of bone tissue engineering research into clinical applications have been limited, due in part to a lack of optimal delivery systems for these signals. Biomedical engineers are therefore highly motivated to develop biomimetic drug delivery systems, which benefit from mimicking signaling molecule release or presentation by the native extracellular matrix during development or the natural healing process. Engineered biomimetic drug delivery systems aim to provide control over the location, timing, and release kinetics of the signal molecules according to the drug's physiochemical properties and specific biological mechanisms. This article reviews biomimetic strategies in signaling delivery for bone tissue engineering, with a focus on delivery systems rather than specific molecules. Both fundamental considerations and specific design strategies are discussed with examples of recent research progress, demonstrating the significance and potential of biomimetic delivery systems for bone tissue engineering.
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Affiliation(s)
- Ming Dang
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI USA
| | - Laura Saunders
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI USA
| | - Xufeng Niu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Peter X. Ma
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI USA
- Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI USA
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI USA
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Chang HC, Yang C, Feng F, Lin FH, Wang CH, Chang PC. Bone morphogenetic protein-2 loaded poly(D,L-lactide-co-glycolide) microspheres enhance osteogenic potential of gelatin/hydroxyapatite/β-tricalcium phosphate cryogel composite for alveolar ridge augmentation. J Formos Med Assoc 2017; 116:973-981. [DOI: 10.1016/j.jfma.2017.01.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 01/04/2017] [Accepted: 01/12/2017] [Indexed: 11/29/2022] Open
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A comparison of micro-CT and histomorphometry for evaluation of osseointegration of PEO-coated titanium implants in a rat model. Sci Rep 2017; 7:16270. [PMID: 29176604 PMCID: PMC5701240 DOI: 10.1038/s41598-017-16465-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 11/13/2017] [Indexed: 11/16/2022] Open
Abstract
The aim of the present study was to determine the correlation between bone volume density (BV/TV) around a titanium implant determined by micro-computed tomography (micro-CT) and bone area density (BA/TA) measurements obtained using histomorphometry. An intramedullary rat femur implant model was evaluated to compare raw titanium implants with plasma electrolytic oxidation (PEO)-coated titanium implants. Titanium and PEO-treated titanium pins were inserted into rat femurs under general anesthesia. The animals were sacrificed and femurs harvested at 0, 2, 4 and 6 weeks, and subsequently, histomorphometry and micro-CT were performed. BV/TV and BA/TA values were strongly and positively correlated at all time points and locations (with all correlation coefficients being >0.8 and with P < 0.001). BV/TV and BA/TA were significantly higher proximal to the growth plate than distal to the growth plate, with estimated differences of 14.10% (P < 0.001) and 11.95% (P < 0.001), respectively. BV/TV and BA/TA were significantly higher on the PEO-coated surface than on the raw titanium surface, with estimated differences of 3.20% (P = 0.044) and 4.10% (P = 0.018), respectively. Therefore, quantitative micro-CT analysis of BV/TV is correlated with BA/TA determined by histomorphometry when artifacts around titanium implants are minimized by a region of interest modification.
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Chen W, Li W, Xu K, Li M, Dai L, Shen X, Hu Y, Cai K. Functionalizing titanium surface with PAMAM dendrimer and human BMP2 gene via layer-by-layer assembly for enhanced osteogenesis. J Biomed Mater Res A 2017; 106:706-717. [DOI: 10.1002/jbm.a.36273] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 09/26/2017] [Accepted: 10/12/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Weizhen Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering; Chongqing University; Chongqing 400044 China
- First Affiliated Hospital, College of Medicine; Zhejiang University, 79 Qingchun Road; Hangzhou 310003 China
- Key Laboratory of Clinical In Vitro Diagnostic Techniques of Zhejiang Province; Hangzhou Zhejiang 310003 China
| | - Wen Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering; Chongqing University; Chongqing 400044 China
| | - Kui Xu
- Biomedical Engineering Center; Medical School of Ningbo University; Ningbo Zhejiang 315211 China
| | - Menghuan Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering; Chongqing University; Chongqing 400044 China
| | - Liangliang Dai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering; Chongqing University; Chongqing 400044 China
| | - Xinkun Shen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering; Chongqing University; Chongqing 400044 China
| | - Yan Hu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering; Chongqing University; Chongqing 400044 China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering; Chongqing University; Chongqing 400044 China
- Chongqing Collaborative Innovation Center for Minimally-invasive and Noninvasive Medicine; Chongqing 400016 China
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Li J, Jahr H, Zheng W, Ren PG. Visualizing Angiogenesis by Multiphoton Microscopy In Vivo in Genetically Modified 3D-PLGA/nHAp Scaffold for Calvarial Critical Bone Defect Repair. J Vis Exp 2017. [PMID: 28930985 DOI: 10.3791/55381] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The reconstruction of critically sized bone defects remains a serious clinical problem because of poor angiogenesis within tissue-engineered scaffolds during repair, which gives rise to a lack of sufficient blood supply and causes necrosis of the new tissues. Rapid vascularization is a vital prerequisite for new tissue survival and integration with existing host tissue. The de novo generation of vasculature in scaffolds is one of the most important steps in making bone regeneration more efficient, allowing repairing tissue to grow into a scaffold. To tackle this problem, the genetic modification of a biomaterial scaffold is used to accelerate angiogenesis and osteogenesis. However, visualizing and tracking in vivo blood vessel formation in real-time and in three-dimensional (3D) scaffolds or new bone tissue is still an obstacle for bone tissue engineering. Multiphoton microscopy (MPM) is a novel bio-imaging modality that can acquire volumetric data from biological structures in a high-resolution and minimally-invasive manner. The objective of this study was to visualize angiogenesis with multiphoton microscopy in vivo in a genetically modified 3D-PLGA/nHAp scaffold for calvarial critical bone defect repair. PLGA/nHAp scaffolds were functionalized for the sustained delivery of a growth factor pdgf-b gene carrying lentiviral vectors (LV-pdgfb) in order to facilitate angiogenesis and to enhance bone regeneration. In a scaffold-implanted calvarial critical bone defect mouse model, the blood vessel areas (BVAs) in PHp scaffolds were significantly higher than in PH scaffolds. Additionally, the expression of pdgf-b and angiogenesis-related genes, vWF and VEGFR2, increased correspondingly. MicroCT analysis indicated that the new bone formation in the PHp group dramatically improved compared to the other groups. To our knowledge, this is the first time multiphoton microscopy was used in bone tissue-engineering to investigate angiogenesis in a 3D bio-degradable scaffold in vivo and in real-time.
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Affiliation(s)
- Jian Li
- Center for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
| | - Holger Jahr
- Department of Orthopedic Surgery, Maastricht UMC+; Department of Orthopaedic Surgery, University Hospital RWTH
| | - Wei Zheng
- Research Laboratory for Biomedical Optics and Molecular Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences;
| | - Pei-Gen Ren
- Center for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences;
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Knoop C, Edelmayer M, Janjić K, Pensch M, Fischer MB, Gruber R, Agis H. Difference in release kinetics of unwashed and washed platelet-released supernatants from bone substitute materials: the impact of platelet preparation modalities. J Periodontal Res 2017; 52:772-786. [DOI: 10.1111/jre.12447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2016] [Indexed: 12/22/2022]
Affiliation(s)
- C. Knoop
- Department of Conservative Dentistry and Periodontology; School of Dentistry; Medical University of Vienna; Vienna Austria
- Austrian Cluster for Tissue Regeneration; Vienna Austria
| | - M. Edelmayer
- Austrian Cluster for Tissue Regeneration; Vienna Austria
- Department of Oral Surgery; School of Dentistry; Medical University of Vienna; Vienna Austria
| | - K. Janjić
- Department of Conservative Dentistry and Periodontology; School of Dentistry; Medical University of Vienna; Vienna Austria
- Austrian Cluster for Tissue Regeneration; Vienna Austria
| | - M. Pensch
- Austrian Cluster for Tissue Regeneration; Vienna Austria
- Department of Oral Surgery; School of Dentistry; Medical University of Vienna; Vienna Austria
| | - M. B. Fischer
- Department of Blood Group Serology and Transfusion Medicine; Medical University of Vienna; Vienna Austria
- Center for Biomedical Technology; Danube University Krems; Krems Austria
| | - R. Gruber
- Austrian Cluster for Tissue Regeneration; Vienna Austria
- Department of Oral Biology; School of Dentistry; Medical University of Vienna; Vienna Austria
| | - H. Agis
- Department of Conservative Dentistry and Periodontology; School of Dentistry; Medical University of Vienna; Vienna Austria
- Austrian Cluster for Tissue Regeneration; Vienna Austria
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Fliefel R, Kühnisch J, Ehrenfeld M, Otto S. Gene Therapy for Bone Defects in Oral and Maxillofacial Surgery: A Systematic Review and Meta-Analysis of Animal Studies. Stem Cells Dev 2016; 26:215-230. [PMID: 27819181 DOI: 10.1089/scd.2016.0172] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Craniofacial bone defects are challenging problems for maxillofacial surgeons over the years. With the development of cell and molecular biology, gene therapy is a breaking new technology with the aim of regenerating tissues by acting as a delivery system for therapeutic genes in the craniofacial region rather than treating genetic disorders. A systematic review was conducted summarizing the articles reporting gene therapy in maxillofacial surgery to answer the question: Was gene therapy successfully applied to regenerate bone in the maxillofacial region? Electronic searching of online databases was performed in addition to hand searching of the references of included articles. No language or time restrictions were enforced. Meta-analysis was done to assess significant bone formation after delivery of gene material in the surgically induced maxillofacial defects. The search identified 2081 articles, of which 57 were included with 1726 animals. Bone morphogenetic proteins were commonly used proteins for gene therapy. Viral vectors were the universally used vectors. Sprague-Dawley rats were the frequently used animal model in experimental studies. The quality of the articles ranged from excellent to average. Meta-analysis results performed on 21 articles showed that defects favored bone formation by gene therapy. Funnel plot showed symmetry with the absence of publication bias. Gene therapy is on the top list of innovative strategies that developed in the last 10 years with the hope of developing a simple chair-side protocol in the near future, combining improvement of gene delivery as well as knowledge of the molecular basis of oral and maxillofacial structures.
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Affiliation(s)
- Riham Fliefel
- 1 Experimental Surgery and Regenerative Medicine (ExperiMed), Ludwig-Maximilians-University , Munich, Germany .,2 Department of Oral and Maxillofacial Surgery, Ludwig-Maximilians-University , Munich, Germany .,3 Department of Oral and Maxillofacial Surgery, Alexandria University , Alexandria, Egypt
| | - Jan Kühnisch
- 4 Department of Conservative Dentistry and Periodontology, Ludwig-Maximilians-University , Munich, Germany
| | - Michael Ehrenfeld
- 2 Department of Oral and Maxillofacial Surgery, Ludwig-Maximilians-University , Munich, Germany
| | - Sven Otto
- 2 Department of Oral and Maxillofacial Surgery, Ludwig-Maximilians-University , Munich, Germany
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Lin Z, Rios HF, Cochran DL. Emerging regenerative approaches for periodontal reconstruction: a systematic review from the AAP Regeneration Workshop. J Periodontol 2016; 86:S134-52. [PMID: 25644297 DOI: 10.1902/jop.2015.130689] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
More than 30 years have passed since the first successful application of regenerative therapy for treatment of periodontal diseases. Despite being feasible, periodontal regeneration still faces numerous challenges, and complete restoration of structure and function of the diseased periodontium is often considered an unpredictable task. This review highlights developing basic science and technologies for potential application to achieve reconstruction of the periodontium. A comprehensive search of the electronic bibliographic database PubMed was conducted to identify different emerging therapeutic approaches reported to influence either biologic pathways and/or tissues involved in periodontal regeneration. Each citation was assessed based on its abstract, and the full text of potentially eligible reports was retrieved. Based on the review of the full papers, their suitability for inclusion in this report was determined. In principle, only reports from scientifically well-designed studies that presented preclinical in vivo (animal studies) or clinical (human studies) evidence for successful periodontal regeneration were included. Hence, in vitro studies, namely those conducted in laboratories without any live animals, were excluded. In case of especially recent and relevant reviews with a narrow focus on specific regenerative approaches, they were identified as such, and thereby the option of referring to them to summarize the status of a specific approach, in addition to or instead of listing each separately, was preserved. Admittedly, the presence of subjectivity in the selection of studies to include in this overview cannot be excluded. However, it is believed that the contemporary approaches described in this review collectively represent the current efforts that have reported preclinical or clinical methods to successfully enhance regeneration of the periodontium. Today's challenges facing periodontal regenerative therapy continue to stimulate important research and clinical development, which, in turn, shapes the current concept of periodontal tissue engineering. Emerging technologies--such as stem cell therapy, bone anabolic agents, genetic approaches, and nanomaterials--also offer unique opportunities to enhance the predictability of current regenerative surgical approaches and inspire development of novel treatment strategies.
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Affiliation(s)
- Zhao Lin
- Department of Periodontics, Virginia Commonwealth University School of Dentistry, Richmond, VA
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Hao J, Cheng KCK, Kruger LG, Larsson L, Sugai JV, Lahann J, Giannobile WV. Multigrowth Factor Delivery via Immobilization of Gene Therapy Vectors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:3145-3151. [PMID: 26919685 PMCID: PMC5687504 DOI: 10.1002/adma.201600027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Indexed: 05/29/2023]
Abstract
Molecules can be immobilized onto biomaterials by a chemical vapor deposition (CVD) coating strategy. Pentafluorophenolester groups react with amine side chains on antibodies, which can selectively immobilize adenoviral vectors for gene delivery of growth factors. These vectors can produce functional proteins within defined regions of biomaterials to produce customizable structures for targeted tissue regeneration.
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Affiliation(s)
- Jie Hao
- Periodontics and Oral Medicine, School of Dentistry, University of Michigan, 1011 North University Avenue, Ann Arbor, MI, 48109-1078, USA
| | - Kenneth C K Cheng
- Biointerfaces Institute, Department of Materials Science and Engineering, B26-115S NCRC, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI, 48109-2800, USA
| | - Laura G Kruger
- Periodontics and Oral Medicine, School of Dentistry, University of Michigan, 1011 North University Avenue, Ann Arbor, MI, 48109-1078, USA
| | - Lena Larsson
- Periodontics and Oral Medicine, School of Dentistry, University of Michigan, 1011 North University Avenue, Ann Arbor, MI, 48109-1078, USA
- Department of Periodontology, Institute of Odontology, Medicinaregatan 12F, 6th Floor, University of Gothenburg, SE-405 30 Gothenburg, Sweden
| | - James V Sugai
- Periodontics and Oral Medicine, School of Dentistry, University of Michigan, 1011 North University Avenue, Ann Arbor, MI, 48109-1078, USA
| | - Joerg Lahann
- Biointerfaces Institute, Department of Chemical Engineering, Materials Science and Engineering, Biomedical Engineering, Macromolecular Science and Engineering, B10-A175 NCRC, University of Michigan, 2800 Plymouth Road, Ann Arbor, MI, 48109-2800, USA
| | - William V Giannobile
- Department of Periodontics and Oral Medicine and Department of Biomedical Engineering, University of Michigan, 1011 North University Avenue, Ann Arbor, MI, 48109-1078, USA
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Mele L, Vitiello PP, Tirino V, Paino F, De Rosa A, Liccardo D, Papaccio G, Desiderio V. Changing Paradigms in Cranio-Facial Regeneration: Current and New Strategies for the Activation of Endogenous Stem Cells. Front Physiol 2016; 7:62. [PMID: 26941656 PMCID: PMC4764712 DOI: 10.3389/fphys.2016.00062] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 02/09/2016] [Indexed: 12/20/2022] Open
Abstract
Craniofacial area represent a unique district of human body characterized by a very high complexity of tissues, innervation and vascularization, and being deputed to many fundamental function such as eating, speech, expression of emotions, delivery of sensations such as taste, sight, and earing. For this reasons, tissue loss in this area following trauma or for example oncologic resection, have a tremendous impact on patients' quality of life. In the last 20 years regenerative medicine has emerged as one of the most promising approach to solve problem related to trauma, tissue loss, organ failure etc. One of the most powerful tools to be used for tissue regeneration is represented by stem cells, which have been successfully implanted in different tissue/organs with exciting results. Nevertheless, both autologous and allogeneic stem cell transplantation raise many practical and ethical concerns that make this approach very difficult to apply in clinical practice. For this reason different cell free approaches have been developed aiming to the mobilization, recruitment, and activation of endogenous stem cells into the injury site avoiding exogenous cells implant but instead stimulating patients' own stem cells to repair the lesion. To this aim many strategies have been used including functionalized bioscaffold, controlled release of stem cell chemoattractants, growth factors, BMPs, Platelet-Rich-Plasma, and other new strategies such as ultrasound wave and laser are just being proposed. Here we review all the current and new strategies used for activation and mobilization of endogenous stem cells in the regeneration of craniofacial tissue.
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Affiliation(s)
- Luigi Mele
- Department of Experimental Medicine, Section of Biotechnology and Medical Histology and Embryology, Second University of Naples Naples, Italy
| | - Pietro Paolo Vitiello
- Medical Oncology, Dipartimento Medico-Chirurgico di Internistica Clinica e Sperimentale "F. Magrassi e A. Lanzara," Second University of Naples Naples, Italy
| | - Virginia Tirino
- Department of Experimental Medicine, Section of Biotechnology and Medical Histology and Embryology, Second University of Naples Naples, Italy
| | - Francesca Paino
- Department of Experimental Medicine, Section of Biotechnology and Medical Histology and Embryology, Second University of Naples Naples, Italy
| | - Alfredo De Rosa
- Department of Odontology and Surgery, Second University of Naples Naples, Italy
| | - Davide Liccardo
- Department of Experimental Medicine, Section of Biotechnology and Medical Histology and Embryology, Second University of Naples Naples, Italy
| | - Gianpaolo Papaccio
- Department of Experimental Medicine, Section of Biotechnology and Medical Histology and Embryology, Second University of Naples Naples, Italy
| | - Vincenzo Desiderio
- Department of Experimental Medicine, Section of Biotechnology and Medical Histology and Embryology, Second University of Naples Naples, Italy
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Kämmerer PW, Schiegnitz E, Palarie V, Dau M, Frerich B, Al-Nawas B. Influence of platelet-derived growth factor on osseous remodeling properties of a variable-thread tapered dental implant in vivo. Clin Oral Implants Res 2016; 28:201-206. [PMID: 26771071 DOI: 10.1111/clr.12782] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2015] [Indexed: 12/30/2022]
Abstract
OBJECTIVES To evaluate the effect of platelet-derived growth factor (rhPDGF-BB) on the promotion of osteogenesis around variable-thread tapered implants in an animal model. MATERIAL AND METHODS Twenty-four variable-thread tapered implants were inserted in the tibia of 12 rabbits. Twelve sites received additional rhPDGF-BB released from a presoaked xenogenic bone block that was fixed supracrestally. Primary outcomes were bone-to-implant contact (BIC; in % ± SD) and percentage of medullary bone fill around the implants (PMF; in % ± SD) after 3 weeks (PDGF n = 6, no PDGF n = 6) and 6 weeks (PDGF n = 6, no PDGF n = 6). RESULTS Considerable crestal and medullary bone remodeling could be found around all implants. After 3 weeks, both BIC and PMF values were higher in the no PDGF group (BIC: 63% ± 10 with PDGF vs. 85% ± 5 with no PDGF; PMF: 57% ± 10 with PDGF vs. 74% ± 4 with no PDGF). After 6 weeks, the BIC difference between the two groups was less distinct (BIC: 78% ± 17 with PDGF vs. 72% ± 25 with no PDGF), whereas the PDGF group showed higher PMF values (PMF: 77% ± 5 with PDGF vs. 56% ± 10 with no PDGF). CONCLUSIONS The addition of rhPDGF-BB decreases early osseous crestal and medullar healing properties around dental implants. In a later phase, an increase in the cortical area as well as an increased medullar bone formation was seen. This response is likely to provide stronger secondary stability and stability in suboptimal situations involving poor-quality bone.
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Affiliation(s)
- Peer W Kämmerer
- Department of Oral, Maxillofacial and Plastic Surgery, University Medical Center Rostock, Rostock, Germany
| | - Eik Schiegnitz
- Department of Oral, Maxillofacial and Plastic Surgery, University Medical Center Mainz, Mainz, Germany
| | - Victor Palarie
- Department of Oral and Maxillofacial Surgery and Oral Implantology, "A. Gutan" of the State University of Medicine and Pharmacy "N. Testemitanu,", Chisinau, Moldova
| | - Michael Dau
- Department of Oral, Maxillofacial and Plastic Surgery, University Medical Center Rostock, Rostock, Germany
| | - Bernhard Frerich
- Department of Oral, Maxillofacial and Plastic Surgery, University Medical Center Rostock, Rostock, Germany
| | - Bilal Al-Nawas
- Department of Oral, Maxillofacial and Plastic Surgery, University Medical Center Mainz, Mainz, Germany
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Vautrot V, Aigueperse C, Oillo-Blanloeil F, Hupont S, Stevenin J, Branlant C, Behm-Ansmant I. Enhanced SRSF5 Protein Expression Reinforces Lamin A mRNA Production in HeLa Cells and Fibroblasts of Progeria Patients. Hum Mutat 2016; 37:280-91. [PMID: 26670336 DOI: 10.1002/humu.22945] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 12/01/2015] [Indexed: 01/01/2023]
Abstract
The Hutchinson Gilford Progeria Syndrome (HGPS) is a rare genetic disease leading to accelerated aging. Three mutations of the LMNA gene leading to HGPS were identified. The more frequent ones, c.1824C>T and c.1822G>A, enhance the use of the intron 11 progerin 5'splice site (5'SS) instead of the LMNA 5'SS, leading to the production of the truncated dominant negative progerin. The less frequent c.1868C>G mutation creates a novel 5'SS (LAΔ35 5'SS), inducing the production of another truncated LMNA protein (LAΔ35). Our data show that the progerin 5'SS is used at low yield in the absence of HGPS mutation, whereas utilization of the LAΔ35 5'SS is dependent upon the presence of the c.1868C>G mutation. In the perspective to correct HGPS splicing defects, we investigated whether SR proteins can modify the relative yields of utilization of intron 11 5'SSs. By in cellulo and in vitro assays, we identified SRSF5 as a direct key regulator increasing the utilization of the LMNA 5'SS in the presence of the HGPS mutations. Enhanced SRSF5 expression in dermal fibroblasts of HGPS patients as well as PDGF-BB stimulation of these cells decreased the utilization of the progerin 5'SS, and improves nuclear morphology, opening new therapeutic perspectives for premature aging.
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Affiliation(s)
- Valentin Vautrot
- IMoPA (Ingénierie Moléculaire et Physiopathologie Articulaire), UMR 7365 CNRS-UL, Biopôle de l'Université de Lorraine, Vandoeuvre-lès-Nancy, 54505, France
| | - Christelle Aigueperse
- IMoPA (Ingénierie Moléculaire et Physiopathologie Articulaire), UMR 7365 CNRS-UL, Biopôle de l'Université de Lorraine, Vandoeuvre-lès-Nancy, 54505, France
| | - Florence Oillo-Blanloeil
- IMoPA (Ingénierie Moléculaire et Physiopathologie Articulaire), UMR 7365 CNRS-UL, Biopôle de l'Université de Lorraine, Vandoeuvre-lès-Nancy, 54505, France
| | - Sébastien Hupont
- FR3209 CNRS, Biopôle de l'Université de Lorraine, Vandoeuvre-lès-Nancy, 54505, France
| | - James Stevenin
- IGBMC Department of Functional Genomics and Cancer, CNRS UMR 7104, INSERM U 964, University of Strasbourg, Illkirch Cedex, 67404, France
| | - Christiane Branlant
- IMoPA (Ingénierie Moléculaire et Physiopathologie Articulaire), UMR 7365 CNRS-UL, Biopôle de l'Université de Lorraine, Vandoeuvre-lès-Nancy, 54505, France
| | - Isabelle Behm-Ansmant
- IMoPA (Ingénierie Moléculaire et Physiopathologie Articulaire), UMR 7365 CNRS-UL, Biopôle de l'Université de Lorraine, Vandoeuvre-lès-Nancy, 54505, France
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Zhang Y, Shuang Y, Fu H, Zhou W, Qian L, Dai J, Miron RJ. Characterization of a shorter recombinant polypeptide chain of bone morphogenetic protein 2 on osteoblast behaviour. BMC Oral Health 2015; 15:171. [PMID: 26715589 PMCID: PMC4696268 DOI: 10.1186/s12903-015-0154-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 12/16/2015] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Recombinant bone morphogenetic protein two (rhBMP2) has been utilised for a variety of clinical applications in orthopaedic surgery and dental procedures. Despite its widespread use, concerns have been raised regarding its short half-life and transient bioactivity in vivo. Recent investigation aimed at developing rhBMP2 synthesized from a shorter polypeptide chain (108 amino acids) has been undertaken. METHODS The osteopromotive properties of BMP2 were investigated on cell behaviour. Five concentrations of rhBMP2_108 including 10, 50, 100, 200 and 500 ng/ml were compared to a commercially available rhBMP2 (100 ng/ml). Each of the working concentrations of rhBMP2_108 were investigated on MC3T3-E1 osteoblasts for their ability to induce osteoblast recruitment, proliferation and differentiation as assessed by alkaline phosphatase (ALP) staining, alizarin red staining, and real-time PCR for genes encoding ALP, osteocalcin (OCN), collagen-1 (COL-1) and Runx2. RESULTS The results demonstrate that all concentrations of rhBMP2_108 significantly improved cell recruitment and proliferation of osteoblasts at 5 days post seeding. Furthermore, rhBMP2_108 had the most pronounced effects on osteoblast differentiation. It was found that rhBMP2_108 had over a four fold significant increase in ALP activity at seven and 14 days post-seeding and the concentrations ranging from 50 to 200 ng/ml demonstrated the most pronounced effects. Analysis of real-time PCR for genes encoding ALP, OCN, COL-1 and Runx2 further confirmed dose-dependant increases at 14 days post-seeding. Furthermore, alizarin red staining demonstrated a concentration dependant increase in staining at 14 days. CONCLUSION The results from the present study demonstrate that this shorter polypeptide chain of rhBMP2_108 is equally as bioactive as commercially available rhBMP2 for the recruitment of progenitor cells by facilitating their differentiation towards the osteoblast lineage. Future in vivo study are necessary to investigate its bioactivity.
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Affiliation(s)
- Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China.
- Department of Oral Implantology, School of Stomatology, Wuhan University, Wuhan, 430079, China.
| | - Yang Shuang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China.
| | - Hang Fu
- Hangzhou JIuyuan Gene Engineering Co, Ltd;East of No.8 Street, Hangzhou Econ. and Tech. Development Zone, Hangzhou, China Hangzhou China, 310018, China.
| | - Wei Zhou
- Hangzhou JIuyuan Gene Engineering Co, Ltd;East of No.8 Street, Hangzhou Econ. and Tech. Development Zone, Hangzhou, China Hangzhou China, 310018, China.
| | - Li Qian
- Hangzhou JIuyuan Gene Engineering Co, Ltd;East of No.8 Street, Hangzhou Econ. and Tech. Development Zone, Hangzhou, China Hangzhou China, 310018, China.
| | - Jing Dai
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China.
| | - Richard J Miron
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China.
- Department of Oral Surgery and Stomatology, University of Bern, Freiburgstrasse 7, Bern, 3010, Switzerland.
- Department of Periodontology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, Bern, 3010, Switzerland.
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Saito E, Suarez-Gonzalez D, Murphy WL, Hollister SJ. Biomineral coating increases bone formation by ex vivo BMP-7 gene therapy in rapid prototyped poly(L-lactic acid) (PLLA) and poly(ε-caprolactone) (PCL) porous scaffolds. Adv Healthc Mater 2015; 4:621-32. [PMID: 25515846 DOI: 10.1002/adhm.201400424] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Indexed: 11/12/2022]
Abstract
Porousbiodegradable polymer scaffolds are widely utilized for bone tissue engineering, but are not osteoconductive like calcium phosphate scaffolds. We combine indirect solid freeform fabrication (SFF), ex vivo gene therapy, with biomineral coating to compare the effect of biomineral coating on bone regeneration for Poly (L-lactic acid) (PLLA) and Poly (ε-caprolactone) (PCL) scaffolds with the same porous architecture. Scanning electron microscope (SEM) and micro-computed tomography (μ-CT) demonstrate PLLA and PCL scaffolds have the same porous architecture and are completely coated. All scaffolds are seeded with human gingival fibroblasts (HGF) transduced with adenovirus encoded with either bone morphogenetic protein 7 (BMP-7) or green fluorescent protein (GFP), and implanted into mice subcutaneously for 3 and 10 weeks. Only scaffolds with BMP-7 transduced HGFs show mineralized tissue formation. At 3 weeks some blood vessel-like structures are observed in coated PLLA and PCL scaffolds, but there is no significant difference in bone ingrowth between the coated and uncoated scaffolds for either PLLA or PCL. At 10 weeks, however, coated scaffolds (both PLLA and PCL) have significantly more bone ingrowth than uncoated scaffolds, which have more fibrous tissue. Coated PLLA scaffolds have improved mechanical properties compared with uncoated PLLA scaffolds due to increased bone ingrowth.
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Affiliation(s)
- Eiji Saito
- Department of Biomedical Engineering; 1101 Beal Ave. University of Michigan; Ann Arbor MI 48109-2099 USA
| | | | - William L. Murphy
- Materials Science Program; University of Wisconsin; Madison WI 53706 USA
- Department of Biomedical Engineering; University of Wisconsin; Madison WI 53706 USA
- Department of Orthopedics and Rehabilitation; University of Wisconsin; Madison WI 53706 USA
| | - Scott J. Hollister
- Department of Biomedical Engineering; 1101 Beal Ave. University of Michigan; Ann Arbor MI 48109-2099 USA
- Department of Mechanical Engineering; University of Michigan; Ann Arbor MI 48109-2125 USA
- Department of Surgery; University of Michigan; Ann Arbor MI 48109-032 USA
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Du Z, Lee RSB, Hamlet S, Doan N, Ivanovski S, Xiao Y. Evaluation of the first maxillary molar post-extraction socket as a model for dental implant osseointegration research. Clin Oral Implants Res 2015; 27:1469-1478. [DOI: 10.1111/clr.12571] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2015] [Indexed: 12/01/2022]
Affiliation(s)
- Zhibin Du
- Institute of Health and Biomedical Innovation; Queensland University of Technology; Kelvin Grove Brisbane Qld Australia
| | - Ryan S. B. Lee
- School of Dentistry and Oral Health; Griffith University; Southport Qld Australia
| | - Stephen Hamlet
- School of Dentistry and Oral Health; Griffith University; Southport Qld Australia
| | - Nghiem Doan
- Institute of Health and Biomedical Innovation; Queensland University of Technology; Kelvin Grove Brisbane Qld Australia
| | - Saso Ivanovski
- School of Dentistry and Oral Health; Griffith University; Southport Qld Australia
| | - Yin Xiao
- Institute of Health and Biomedical Innovation; Queensland University of Technology; Kelvin Grove Brisbane Qld Australia
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37
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Zhang Y, Miron RJ, Li S, Shi B, Sculean A, Cheng X. Novel MesoPorous BioGlass/silk scaffold containing adPDGF-B and adBMP7 for the repair of periodontal defects in beagle dogs. J Clin Periodontol 2015; 42:262-71. [DOI: 10.1111/jcpe.12364] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2015] [Indexed: 01/16/2023]
Affiliation(s)
- Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
- Department of Oral Implantology; School of Stomatology; Wuhan University; Wuhan China
| | - Richard J. Miron
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
- Department of Periodontology; School of Dental Medicine; University of Bern; Bern Switzerland
| | - Sue Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
| | - Bin Shi
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
- Department of Oral Implantology; School of Stomatology; Wuhan University; Wuhan China
| | - Anton Sculean
- Department of Periodontology; School of Dental Medicine; University of Bern; Bern Switzerland
| | - Xiangrong Cheng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
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38
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Fang YL, Chen XG, W T G. Gene delivery in tissue engineering and regenerative medicine. J Biomed Mater Res B Appl Biomater 2014; 103:1679-99. [PMID: 25557560 DOI: 10.1002/jbm.b.33354] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 11/07/2014] [Accepted: 11/18/2014] [Indexed: 12/13/2022]
Abstract
As a promising strategy to aid or replace tissue/organ transplantation, gene delivery has been used for regenerative medicine applications to create or restore normal function at the cell and tissue levels. Gene delivery has been successfully performed ex vivo and in vivo in these applications. Excellent proliferation capabilities and differentiation potentials render certain cells as excellent candidates for ex vivo gene delivery for regenerative medicine applications, which is why multipotent and pluripotent cells have been intensely studied in this vein. In this review, gene delivery is discussed in detail, along with its applications to tissue engineering and regenerative medicine. A definition of a stem cell is compared to a definition of a stem property, and both provide the foundation for an in-depth look at gene delivery investigations from a germ lineage angle.
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Affiliation(s)
- Y L Fang
- Department of Chemical & Biomolecular Engineering, Laboratory for Gene Therapy and Cellular Engineering, Tulane University, 300 Lindy Boggs Center, New Orleans, Louisiana, 70118
| | - X G Chen
- Department of Chemical & Biomolecular Engineering, Laboratory for Gene Therapy and Cellular Engineering, Tulane University, 300 Lindy Boggs Center, New Orleans, Louisiana, 70118
| | - Godbey W T
- Department of Chemical & Biomolecular Engineering, Laboratory for Gene Therapy and Cellular Engineering, Tulane University, 300 Lindy Boggs Center, New Orleans, Louisiana, 70118
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39
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Jin Y, Zhang W, Liu Y, Zhang M, Xu L, Wu Q, Zhang X, Zhu Z, Huang Q, Jiang X. rhPDGF-BB Via ERK Pathway Osteogenesis and Adipogenesis Balancing in ADSCs for Critical-Sized Calvarial Defect Repair. Tissue Eng Part A 2014; 20:3303-13. [PMID: 24568547 DOI: 10.1089/ten.tea.2013.0556] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Yuqin Jin
- Department of Prosthodontics, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
- Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Lab of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Wenjie Zhang
- Department of Prosthodontics, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
- Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Lab of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Yan Liu
- Department of Prosthodontics, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
- Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Lab of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Maolin Zhang
- Department of Oral and Maxillofacial Surgery, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Lianyi Xu
- Department of Prosthodontics, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
- Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Lab of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Qianju Wu
- Department of Prosthodontics, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
- Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Lab of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Xiuli Zhang
- Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Lab of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Ziyuan Zhu
- Department of Prosthodontics, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Qingfeng Huang
- Department of Prosthodontics, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Xinquan Jiang
- Department of Prosthodontics, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
- Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Lab of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
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40
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D'Mello S, Elangovan S, Hong L, Ross RD, Sumner DR, Salem AK. Incorporation of copper into chitosan scaffolds promotes bone regeneration in rat calvarial defects. J Biomed Mater Res B Appl Biomater 2014; 103:1044-9. [PMID: 25230382 DOI: 10.1002/jbm.b.33290] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 08/03/2014] [Accepted: 09/01/2014] [Indexed: 11/09/2022]
Abstract
The objective of this study was to investigate the effects of a copper loaded chitosan scaffold on bone regeneration in critical-sized calvarial defects in rats. Chitosan scaffolds and copper-chitosan scaffolds were fabricated and characterized by scanning electron microscopy (SEM). Chitosan and copper-chitosan scaffolds were implanted into 5 mm diameter critical-sized calvarial defects in Fisher 344 male rats. Empty defects (no scaffolds) were included as a control. After 4 weeks, the rats were sacrificed for microcomputed tomography (micro-CT) and histological analysis of new bone tissue development. Microscopy images revealed the uniformly porous structure of chitosan and copper-chitosan scaffolds. Significant bone regeneration was noted in the defects treated with copper-chitosan scaffolds when evaluated using micro-CT and histological analysis, when compared with other groups tested. On analysis of the micro-CT scans, an eleven-fold and a two-fold increase in the new bone volume/total volume (BV/TV) % was found in defects treated with the copper-chitosan scaffolds, when compared to empty defects and chitosan scaffolds, respectively. This study demonstrated the suitability of copper-crosslinked chitosan scaffolds for bone tissue engineering and provides the first evidence that inclusion of copper ions in scaffolds can enhance tissue regeneration.
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Affiliation(s)
- Sheetal D'Mello
- Division of Pharmaceutics and Translational Therapeutics, College of Pharmacy, University of Iowa, Iowa, 52242
| | - Satheesh Elangovan
- Department of Periodontics, College of Dentistry, University of Iowa, Iowa City, Iowa, 52242
| | - Liu Hong
- Department of Prosthodontics, College of Dentistry, University of Iowa, Iowa City, Iowa
| | - Ryan D Ross
- Department of Anatomy and Cell Biology, Rush Medical College, Chicago, Illinois
| | - D Rick Sumner
- Department of Anatomy and Cell Biology, Rush Medical College, Chicago, Illinois
| | - Aliasger K Salem
- Division of Pharmaceutics and Translational Therapeutics, College of Pharmacy, University of Iowa, Iowa, 52242.,Department of Periodontics, College of Dentistry, University of Iowa, Iowa City, Iowa, 52242
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41
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Chang PC, Wang CY, Sheng-Chueh T. Combination of LED light and platelet-derived growth factor to accelerate dentoalveolar osteogenesis. J Clin Periodontol 2014; 41:999-1006. [DOI: 10.1111/jcpe.12301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Po-Chun Chang
- Graduate Institute of Clinical Dentistry; School of Dentistry; National Taiwan University; Taipei Taiwan
- Department of Dentistry; National Taiwan University Hospital; Taipei Taiwan
| | - Chen-Ying Wang
- Department of Dentistry; National Taiwan University Hospital; Taipei Taiwan
| | - Tsai Sheng-Chueh
- Institute of Molecular and Cellular Biology; College of Life Science; National Taiwan University; Taipei Taiwan
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42
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Ortolani E, Guerriero M, Coli A, Di Giannuario A, Minniti G, Polimeni A. Effect of PDGF, IGF-1 and PRP on the implant osseointegration. An histological and immunohistochemical study in rabbits. ANNALI DI STOMATOLOGIA 2014; 5:66-68. [PMID: 25002920 PMCID: PMC4071363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The ability of platelet-derived growth factor (PDGF), insulin-like growth factor-1 (IGF-1) and platelet-rich plasma (PRP) to increase the rate of osseointegration of endosseous implants and to improve the quality of bone remodeling on the surface of titanium, has been investigated in an experimental intraosseous defect model by an histological and immunohistochemical evaluation. The results from this study demonstrate that rabbits treated with the combination PDGF/IGF-1 showed a higher positive effect on bone regeneration than PRP-treated or controls.
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Affiliation(s)
- Emanuela Ortolani
- General Dentistry and Emergency Care Unit George Eastman Dental Hospital, Rome, Italy
| | | | - Antonella Coli
- Institute of Pathology, Sacro Cuore Cattolica University, Rome, Italy
| | | | | | - Antonella Polimeni
- Department of Oral and Maxillo-facial Sciences, Pediatric Dentistry Unit, Sapienza University of Rome, Italy
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43
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Chang PC, Seol YJ, Goldstein SA, Giannobile WV. Determination of the dynamics of healing at the tissue-implant interface by means of microcomputed tomography and functional apparent moduli. Int J Oral Maxillofac Implants 2014; 28:68-76. [PMID: 23377049 DOI: 10.11607/jomi.2614] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PURPOSE It is currently a challenge to determine the biomechanical properties of the hard tissue-dental implant interface. Recent advances in intraoral imaging and tomographic methods, such as microcomputed tomography (micro-CT), provide three-dimensional details, offering significant potential to evaluate the bone-implant interface, but yield limited information regarding osseointegration because of physical scattering effects emanating from metallic implant surfaces. In the present study, it was hypothesized that functional apparent moduli (FAM), generated from functional incorporation of the peri-implant structure, would eliminate the radiographic artifact-affected layer and serve as a feasible means to evaluate the biomechanical dynamics of tissue-implant integration in vivo. MATERIALS AND METHODS Cylindric titanium mini-implants were placed in osteotomies and osteotomies with defects in rodent maxillae. The layers affected by radiographic artifacts were identified, and the pattern of tissue-implant integration was evaluated from histology and micro-CT images over a 21-day observation period. Analyses of structural information, FAM, and the relationship between FAM and interfacial stiffness (IS) were done before and after eliminating artifacts. RESULTS Physical artifacts were present within a zone of about 100 to 150 Μm around the implant in both experimental defect situations (osteotomy alone and osteotomy + defect). All correlations were evaluated before and after eliminating the artifact-affected layers, most notably during the maturation period of osseointegration. A strong correlation existed between functional bone apparent modulus and IS within 300 Μm at the osteotomy defects (r > 0.9) and functional composite tissue apparent modulus in the osteotomy defects (r > 0.75). CONCLUSION Micro-CT imaging and FAM were of value in measuring the temporal process of tissue-implant integration in vivo. This approach will be useful to complement imaging technologies for longitudinal monitoring of osseointegration.
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Affiliation(s)
- Po-Chun Chang
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA.
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44
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45
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Maciel J, Oliveira MI, Colton E, McNally AK, Oliveira C, Anderson JM, Barbosa MA. Adsorbed fibrinogen enhances production of bone- and angiogenic-related factors by monocytes/macrophages. Tissue Eng Part A 2013; 20:250-63. [PMID: 23937279 DOI: 10.1089/ten.tea.2012.0439] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Macrophages are phagocytic cells with great importance in guiding multiple stages of inflammation and tissue repair. By producing a large number of biologically active molecules, they can affect the behavior of other cells and events, such as the foreign body response and angiogenesis. Since protein adsorption to biomaterials is crucial for the inflammatory process, we addressed the ability of the pro-inflammatory molecule fibrinogen (Fg) to modulate macrophage behavior toward tissue repair/regeneration. For this purpose, we used chitosan (Ch) as a substrate for Fg adsorption. Freshly isolated human monocytes were seeded on Ch substrates alone or previously adsorbed with Fg, and allowed to differentiate into macrophages for 10 days. Cell adhesion and morphology, formation of foreign body giant cells (FBGC), and secretion of a total of 80 cytokines and growth factors were evaluated. Both substrates showed similar numbers of adherent macrophages along differentiation as compared with RGD-coated surfaces, which were used as positive controls. Fg did not potentiate FBGC formation. In addition, actin cytoskeleton staining revealed the presence of punctuate F-actin with more elongated and interconnecting cells on Ch substrates. Antibody array screening and quantification of inflammation- and wound-healing-related factors indicated an overall reduction in Ch-based substrates versus RGD-coated surfaces. At late times, most inflammatory agents were down-regulated in the presence of Fg, in contrast to growth factor production, which was stimulated by Fg. Importantly, on Ch+Fg substrates, fully differentiated macrophages produced significant amounts of macrophage inflammatory protein-1delta (MIP-1δ), platelet-derived growth factor-BB, bone morphogenetic protein (BMP)-5, and BMP-7 compared with Ch alone. In addition, other important factors involved in bone homeostasis and wound healing, such as growth hormone, transforming growth factor-β3, and insulin-like growth factor-binding proteins, as well as several angiogenic mediators, including endocrine gland-derived vascular endothelial factor, fibroblast growth factor-7, and placental growth factor, were significantly promoted by Fg. This work provides a new perspective on the inflammatory response in the context of bone repair/regeneration mediated by a pro-inflammatory protein (Fg) adsorbed onto a biomaterial (Ch) that does not otherwise exhibit osteogenic properties.
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Affiliation(s)
- Joana Maciel
- 1 INEB-Instituto de Engenharia Biomédica, Universidade do Porto , Porto, Portugal
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46
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Elangovan S, D'Mello SR, Hong L, Ross RD, Allamargot C, Dawson DV, Stanford CM, Johnson GK, Sumner DR, Salem AK. The enhancement of bone regeneration by gene activated matrix encoding for platelet derived growth factor. Biomaterials 2013; 35:737-47. [PMID: 24161167 DOI: 10.1016/j.biomaterials.2013.10.021] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 10/04/2013] [Indexed: 01/24/2023]
Abstract
Gene therapy using non-viral vectors that are safe and efficient in transfecting target cells is an effective approach to overcome the shortcomings of protein delivery of growth factors. The objective of this study was to develop and test a non-viral gene delivery system for bone regeneration utilizing a collagen scaffold to deliver polyethylenimine (PEI)-plasmid DNA (pDNA) [encoding platelet derived growth factor-B (PDGF-B)] complexes. The PEI-pPDGF-B complexes were fabricated at amine (N) to phosphate (P) ratio of 10 and characterized for size, surface charge, and in vitro cytotoxicity and transfection efficacy in human bone marrow stromal cells (BMSCs). The influence of the complex-loaded collagen scaffold on cellular attachment and recruitment was evaluated in vitro using microscopy techniques. The in vivo regenerative capacity of the gene delivery system was assessed in 5 mm diameter critical-sized calvarial defects in Fisher 344 rats. The complexes were ~100 nm in size with a positive surface charge. Complexes prepared at an N/P ratio of 10 displayed low cytotoxicity as assessed by a cell viability assay. Confocal microscopy revealed significant proliferation of BMSCs on complex-loaded collagen scaffolds compared to empty scaffolds. In vivo studies showed significantly higher new bone volume/total volume (BV/TV) % in calvarial defects treated with the complex-activated scaffolds following 4 weeks of implantation (14- and 44-fold higher) when compared to empty defects or empty scaffolds, respectively. Together, these findings suggest that non-viral PDGF-B gene-activated scaffolds are effective for bone regeneration and are an attractive gene delivery system with significant potential for clinical translation.
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Affiliation(s)
- Satheesh Elangovan
- Department of Periodontics, University of Iowa College of Dentistry, Iowa City, IA, USA.
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47
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Effects of increased low-level diode laser irradiation time on extraction socket healing in rats. Lasers Med Sci 2013; 30:719-26. [DOI: 10.1007/s10103-013-1402-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 07/15/2013] [Indexed: 11/30/2022]
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48
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Bhattarai G, Lee YH, Lee MH, Yi HK. Gene delivery of c-myb increases bone formation surrounding oral implants. J Dent Res 2013; 92:840-5. [PMID: 23838059 DOI: 10.1177/0022034513497753] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Bone regeneration around titanium (Ti) implants is a relatively slow process. The c-myb transcription factor has been associated with high proliferation and differentiation rates in bone. This study analyzed whether c-myb can enhance new bone surrounding the implant. In vitro overexpressed chitosan-gold nanoparticles conjugated with plasmid DNA/c-myb (Ch-GNPs/c-myb)-coated Ti surfaces were associated with enhanced expression of the osteogenic molecules osteopontin (OPN), runt-related transcription factor 2 (RUNX-2), and bone morphogenetic proteins (BMP2/7) in MC-3T3E1 osteoblast cells. Further, to determine its in vivo effect, we inserted Ch-GNPs/c-myb-coated Ti implants into rat mandibles. One and 4 wks post-implantation, mandibles were examined by microcomputed tomography, immunohistochemistry, and hematoxylin & eosin staining. The microcomputed tomography analysis demonstrated that c-myb overexpression increased the density and volume of newly formed bone surrounding the implants, compared with those in controls (p < .05). Further, c-myb increased the number of cells expressing BMP2/7 and aided in the increase of new bone (p < .05). These results support the view that c-myb overexpression accelerates new bone surrounding implants and can serve as a potent molecule in promoting tissue regeneration around dental implants. The recipient rat used in this system provides an excellent in vivo model for studies of bone regeneration.
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Affiliation(s)
- G Bhattarai
- Department of Oral Biochemistry, BK21 program, School of Dentistry, Chonbuk National University, Jeonju, Korea
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49
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Cam C, Segura T. Matrix-based gene delivery for tissue repair. Curr Opin Biotechnol 2013; 24:855-63. [PMID: 23680305 DOI: 10.1016/j.copbio.2013.04.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 04/15/2013] [Accepted: 04/16/2013] [Indexed: 12/28/2022]
Abstract
Scaffolds for tissue repair must provide structural and biochemical cues to initiate the complex cascade of events that lead to proper tissue formation. Incorporating genes into these scaffolds is an attractive alternative to protein delivery since gene delivery can be tunable to any DNA sequence and genes utilize the cells' machinery to continuously produce therapeutic proteins, leading to longer lasting transgene expression and activation of autocrine and paracrine signaling that are not activated with bulk protein delivery. In this review, we discuss the importance of scaffold design and the impact of its design parameters (e.g. material, architecture, vector incorporation, biochemical cue presentation) on transgene expression and tissue repair.
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Affiliation(s)
- Cynthia Cam
- Department of Bioengineering, University of California, Los Angeles, United States
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50
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Saito E, Suarez-Gonzalez D, Rao RR, Stegemann JP, Murphy WL, Hollister SJ. Use of micro-computed tomography to nondestructively characterize biomineral coatings on solid freeform fabricated poly (L-lactic acid) and poly ((ε-caprolactone) scaffolds in vitro and in vivo. Tissue Eng Part C Methods 2013; 19:507-17. [PMID: 23134479 DOI: 10.1089/ten.tec.2012.0495] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Biomineral coatings have been extensively used to enhance the osteoconductivity of polymeric scaffolds. Numerous porous scaffolds have previously been coated with a bone-like apatite mineral through incubation in simulated body fluid (SBF). However, characterization of the mineral layer formed on scaffolds, including the amount of mineral within the scaffolds, often requires destructive methods. We have developed a method using micro-computed tomography (μ-CT) scanning to nondestructively quantify the amount of mineral in vitro and in vivo on biodegradable scaffolds made of poly (L-lactic acid) (PLLA) and poly (ε-caprolactone) (PCL). PLLA and PCL scaffolds were fabricated using an indirect solid freeform fabrication (SFF) technique to achieve orthogonally interconnected pore architectures. Biomineral coatings were formed on the fabricated PLLA and PCL scaffolds after incubation in modified SBF (mSBF). Scanning electron microscopy and X-ray diffraction confirmed the formation of an apatite-like mineral. The scaffolds were implanted into mouse ectopic sites for 3 and 10 weeks. The presence of a biomineral coating within the porous scaffolds was confirmed through plastic embedding and μ-CT techniques. Tissue mineral content (TMC) and volume of mineral on the scaffold surfaces detected by μ-CT had a strong correlation with the amount of calcium measured by the orthocresolphthalein complex-one (OCPC) method before and after implantation. There was a strong correlation between OCPC pre- and postimplantation and μ-CT measured TMC (R(2)=0.96 preimplant; R(2)=0.90 postimplant) and mineral volume (R(2)=0.96 preimplant; R(2)=0.89 postimplant). The μ-CT technique showed increases in mineral following implantation, suggesting that μ-CT can be used to nondestructively determine the amount of calcium on coated scaffolds.
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Affiliation(s)
- Eiji Saito
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
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