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Li X, Zhu L, Che Z, Liu T, Yang C, Huang L. Progress of research on the surface functionalization of tantalum and porous tantalum in bone tissue engineering. Biomed Mater 2024; 19:042009. [PMID: 38838694 DOI: 10.1088/1748-605x/ad5481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 06/05/2024] [Indexed: 06/07/2024]
Abstract
Tantalum and porous tantalum are ideal materials for making orthopedic implants due to their stable chemical properties and excellent biocompatibility. However, their utilization is still affected by loosening, infection, and peripheral inflammatory reactions, which sometimes ultimately lead to implant removal. An ideal bone implant should have exceptional biological activity, which can improve the surrounding biological microenvironment to enhance bone repair. Recent advances in surface functionalization have produced various strategies for developing compatibility between either of the two materials and their respective microenvironments. This review provides a systematic overview of state-of-the-art strategies for conferring biological functions to tantalum and porous tantalum implants. Furthermore, the review describes methods for preparing active surfaces and different bioactive substances that are used, summarizing their functions. Finally, this review discusses current challenges in the development of optimal bone implant materials.
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Affiliation(s)
- Xudong Li
- The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Liwei Zhu
- The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Zhenjia Che
- The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Tengyue Liu
- The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Chengzhe Yang
- The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Lanfeng Huang
- The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
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Park JJ, Rochlin DH, Parsaei Y, Shetye PR, Witek L, Leucht P, Rabbani PS, Flores RL. Bone Tissue Engineering Strategies for Alveolar Cleft: Review of Preclinical Results and Guidelines for Future Studies. Cleft Palate Craniofac J 2023; 60:1450-1461. [PMID: 35678607 DOI: 10.1177/10556656221104954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The current standard of care for an alveolar cleft defect is an autogenous bone graft, typically from the iliac crest. Given the limitations of alveolar bone graft surgery, such as limited supply, donor site morbidity, graft failure, and need for secondary surgery, there has been growing interest in regenerative medicine strategies to supplement and replace traditional alveolar bone grafts. Though there have been preliminary clinical studies investigating bone tissue engineering methods in human subjects, lack of consistent results as well as limitations in study design make it difficult to determine the efficacy of these interventions. As the field of bone tissue engineering is rapidly advancing, reconstructive surgeons should be aware of the preclinical studies informing these regenerative strategies. We review preclinical studies investigating bone tissue engineering strategies in large animal maxillary or mandibular defects and provide an overview of scaffolds, stem cells, and osteogenic agents applicable to tissue engineering of the alveolar cleft. An electronic search conducted in the PubMed database up to December 2021 resulted in 35 studies for inclusion in our review. Most studies showed increased bone growth with a tissue engineering construct compared to negative control. However, heterogeneity in the length of follow up, method of bone growth analysis, and inconsistent use of positive control groups make comparisons across studies difficult. Future studies should incorporate a pediatric study model specific to alveolar cleft with long-term follow up to fully characterize volumetric defect filling, cellular ingrowth, bone strength, tooth movement, and implant support.
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Affiliation(s)
- Jenn J Park
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, NY, USA
| | - Danielle H Rochlin
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, NY, USA
| | - Yassmin Parsaei
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, NY, USA
| | - Pradip R Shetye
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, NY, USA
| | - Lukasz Witek
- New York University College of Dentistry, New York, NY, USA
| | - Philipp Leucht
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, NY, USA
| | - Piul S Rabbani
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, NY, USA
| | - Roberto L Flores
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, NY, USA
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Nayak VV, Slavin B, Bergamo ETP, Boczar D, Slavin BR, Runyan C, Tovar N, Witek L, Coelho PG. Bone Tissue Engineering (BTE) of the Craniofacial Skeleton, Part I: Evolution and Optimization of 3D-Printed Scaffolds for Repair of Defects. J Craniofac Surg 2023; 34:2016-2025. [PMID: 37639650 PMCID: PMC10592373 DOI: 10.1097/scs.0000000000009593] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 06/25/2023] [Indexed: 08/31/2023] Open
Abstract
Bone tissue regeneration is a complex process that proceeds along the well-established wound healing pathway of hemostasis, inflammation, proliferation, and remodeling. Recently, tissue engineering efforts have focused on the application of biological and technological principles for the development of soft and hard tissue substitutes. Aim is directed towards boosting pathways of the healing process to restore form and function of tissue deficits. Continued development of synthetic scaffolds, cell therapies, and signaling biomolecules seeks to minimize the need for autografting. Despite being the current gold standard treatment, it is limited by donor sites' size and shape, as well as donor site morbidity. Since the advent of computer-aided design/computer-aided manufacturing (CAD/CAM) and additive manufacturing (AM) techniques (3D printing), bioengineering has expanded markedly while continuing to present innovative approaches to oral and craniofacial skeletal reconstruction. Prime examples include customizable, high-strength, load bearing, bioactive ceramic scaffolds. Porous macro- and micro-architecture along with the surface topography of 3D printed scaffolds favors osteoconduction and vascular in-growth, as well as the incorporation of stem and/or other osteoprogenitor cells and growth factors. This includes platelet concentrates (PCs), bone morphogenetic proteins (BMPs), and some pharmacological agents, such as dipyridamole (DIPY), an adenosine A 2A receptor indirect agonist that enhances osteogenic and osteoinductive capacity, thus improving bone formation. This two-part review commences by presenting current biological and engineering principles of bone regeneration utilized to produce 3D-printed ceramic scaffolds with the goal to create a viable alternative to autografts for craniofacial skeleton reconstruction. Part II comprehensively examines recent preclinical data to elucidate the potential clinical translation of such 3D-printed ceramic scaffolds.
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Affiliation(s)
- Vasudev V Nayak
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Blaire Slavin
- University of Miami Miller School of Medicine, Miami, FL, USA
| | - Edmara TP Bergamo
- Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil
- Biomaterials Division - NYU College of Dentistry, New York, NY, USA
| | - Daniel Boczar
- Department of Surgery, University of Washington, Seattle, WA USA
| | - Benjamin R. Slavin
- DeWitt Daughtry Family Department of Surgery, Division of Plastic Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Christopher Runyan
- Department of Plastic and Reconstructive Surgery, Wake Forest School of Medicine; Winston-Salem, NC, USA
| | - Nick Tovar
- Biomaterials Division - NYU College of Dentistry, New York, NY, USA
- Department of Oral and Maxillofacial Surgery, New York University, Langone Medical Center and Bellevue Hospital Center, New York, NY, USA
| | - Lukasz Witek
- Biomaterials Division - NYU College of Dentistry, New York, NY, USA
- Department of Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, NY, USA
| | - Paulo G. Coelho
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, USA
- DeWitt Daughtry Family Department of Surgery, Division of Plastic Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
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Nayak VV, Slavin BV, Bergamo ET, Torroni A, Runyan CM, Flores RL, Kasper FK, Young S, Coelho PG, Witek L. Three-Dimensional Printing Bioceramic Scaffolds Using Direct-Ink-Writing for Craniomaxillofacial Bone Regeneration. Tissue Eng Part C Methods 2023; 29:332-345. [PMID: 37463403 PMCID: PMC10495199 DOI: 10.1089/ten.tec.2023.0082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/20/2023] [Indexed: 07/20/2023] Open
Abstract
Defects characterized as large osseous voids in bone, in certain circumstances, are difficult to treat, requiring extensive treatments which lead to an increased financial burden, pain, and prolonged hospital stays. Grafts exist to aid in bone tissue regeneration (BTR), among which ceramic-based grafts have become increasingly popular due to their biocompatibility and resorbability. BTR using bioceramic materials such as β-tricalcium phosphate has seen tremendous progress and has been extensively used in the fabrication of biomimetic scaffolds through the three-dimensional printing (3DP) workflow. 3DP has hence revolutionized BTR by offering unparalleled potential for the creation of complex, patient, and anatomic location-specific structures. More importantly, it has enabled the production of biomimetic scaffolds with porous structures that mimic the natural extracellular matrix while allowing for cell growth-a critical factor in determining the overall success of the BTR modality. While the concept of 3DP bioceramic bone tissue scaffolds for human applications is nascent, numerous studies have highlighted its potential in restoring both form and function of critically sized defects in a wide variety of translational models. In this review, we summarize these recent advancements and present a review of the engineering principles and methodologies that are vital for using 3DP technology for craniomaxillofacial reconstructive applications. Moreover, we highlight future advances in the field of dynamic 3D printed constructs via shape-memory effect, and comment on pharmacological manipulation and bioactive molecules required to treat a wider range of boney defects.
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Affiliation(s)
- Vasudev Vivekanand Nayak
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Blaire V. Slavin
- University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Edmara T.P. Bergamo
- Biomaterials Division, New York University College of Dentistry, New York, New York, USA
- Department of Prosthodontics and Periodontology, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Andrea Torroni
- Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine, New York University, New York, New York, USA
| | - Christopher M. Runyan
- Department of Plastic and Reconstructive Surgery, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Roberto L. Flores
- Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine, New York University, New York, New York, USA
| | - F. Kurtis Kasper
- Department of Orthodontics, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Simon Young
- Bernard and Gloria Pepper Katz Department of Oral and Maxillofacial Surgery, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Paulo G. Coelho
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, USA
- DeWitt Daughtry Family Department of Surgery, Division of Plastic Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Lukasz Witek
- Biomaterials Division, New York University College of Dentistry, New York, New York, USA
- Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine, New York University, New York, New York, USA
- Department of Biomedical Engineering, Tandon School of Engineering, New York University, Brooklyn, New York, USA
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Advances in the One-Step Approach of Polymeric Materials Using Enzymatic Techniques. Polymers (Basel) 2023; 15:polym15030703. [PMID: 36772002 PMCID: PMC9922006 DOI: 10.3390/polym15030703] [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: 12/27/2022] [Revised: 01/23/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
The formulation in which biochemical enzymes are administered in polymer science plays a key role in retaining their catalytic activity. The one-step synthesis of polymers with highly sequence-controlled enzymes is a strategy employed to provide enzymes with higher catalytic activity and thermostability in material sustainability. Enzyme-catalyzed chain growth polymerization reactions using activated monomers, protein-polymer complexation techniques, covalent and non-covalent interaction, and electrostatic interactions can provide means to develop formulations that maintain the stability of the enzyme during complex material processes. Multifarious applications of catalytic enzymes are usually attributed to their efficiency, pH, and temperature, thus, progressing with a critical structure-controlled synthesis of polymer materials. Due to the obvious economics of manufacturing and environmental sustainability, the green synthesis of enzyme-catalyzed materials has attracted significant interest. Several enzymes from microorganisms and plants via enzyme-mediated material synthesis have provided a viable alternative for the appropriate synthesis of polymers, effectively utilizing the one-step approach. This review analyzes more and deeper strategies and material technologies widely used in multi-enzyme cascade platforms for engineering polymer materials, as well as their potential industrial applications, to provide an update on current trends and gaps in the one-step synthesis of materials using catalytic enzymes.
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Zhang X, Li Q, Wang Z, Zhou W, Zhang L, Liu Y, Xu Z, Li Z, Zhu C, Zhang X. Bone regeneration materials and their application over 20 years: A bibliometric study and systematic review. Front Bioeng Biotechnol 2022; 10:921092. [PMID: 36277397 PMCID: PMC9581237 DOI: 10.3389/fbioe.2022.921092] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 08/25/2022] [Indexed: 12/02/2022] Open
Abstract
Bone regeneration materials (BRMs) bring us new sights into the clinical management bone defects. With advances in BRMs technologies, new strategies are emerging to promote bone regeneration. The aim of this study was to comprehensively assess the existing research and recent progress on BRMs, thus providing useful insights into contemporary research, as well as to explore potential future directions within the scope of bone regeneration therapy. A comprehensive literature review using formal data mining procedures was performed to explore the global trends of selected areas of research for the past 20 years. The study applied bibliometric methods and knowledge visualization techniques to identify and investigate publications based on the publication year (between 2002 and 2021), document type, language, country, institution, author, journal, keywords, and citation number. The most productive countries were China, United States, and Italy. The most prolific journal in the BRM field was Acta Biomaterialia, closely followed by Biomaterials. Moreover, recent investigations have been focused on extracellular matrices (ECMs) (370 publications), hydrogel materials (286 publications), and drug delivery systems (220 publications). Research hotspots related to BRMs and extracellular matrices from 2002 to 2011 were growth factor, bone morphogenetic protein (BMP)-2, and mesenchymal stem cell (MSC), whereas after 2012 were composite scaffolds. Between 2002 and 2011, studies related to BRMs and hydrogels were focused on BMP-2, in vivo, and in vitro investigations, whereas it turned to the exploration of MSCs, mechanical properties, and osteogenic differentiation after 2012. Research hotspots related to BRM and drug delivery were fibroblast growth factor, mesoporous materials, and controlled release during 2002–2011, and electrospinning, antibacterial activity, and in vitro bioactivity after 2012. Overall, composite scaffolds, 3D printing technology, and antibacterial activity were found to have an important intersection within BRM investigations, representing relevant research fields for the future. Taken together, this extensive analysis highlights the existing literature and findings that advance scientific insights into bone tissue engineering and its subsequent applications.
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Affiliation(s)
- Xudong Zhang
- Department of Orthopedics, The Affiliated Provincial Hospital of Anhui Medical University, Anhui Medical University, Hefei, China
| | - Qianming Li
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Zhengxi Wang
- Department of Orthopedics, Anhui Provincial Hospital, Wannan Medical College, Hefei, China
| | - Wei Zhou
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Linlin Zhang
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yingsheng Liu
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Ze Xu
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Zheng Li
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Chen Zhu
- Department of Orthopedics, The Affiliated Provincial Hospital of Anhui Medical University, Anhui Medical University, Hefei, China
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xianzuo Zhang
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- *Correspondence: Xianzuo Zhang,
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Alkaabi S, Alsabri G, Natsir Kalla D, Alavi S, Nurrahma R, Forouzanfar T, Helder M. Regenerative graft materials for maxillary sinus elevation in randomized clinical trials: A meta-analysis. ADVANCES IN ORAL AND MAXILLOFACIAL SURGERY 2022. [DOI: 10.1016/j.adoms.2022.100350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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Evaluation of the Proximal Tibia as a Donor Site of Cancellous Bone for Intraoral Grafting Procedures-A Retrospective Study. J Clin Med 2022; 11:jcm11061493. [PMID: 35329821 PMCID: PMC8953495 DOI: 10.3390/jcm11061493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/02/2022] [Accepted: 03/07/2022] [Indexed: 02/01/2023] Open
Abstract
Background: Autogenous bone grafts remain the “gold standard” in maxillofacial reconstructive procedures. The objective of this study was to evaluate the proximal tibia as a donor site of cancellous bone for bone grafting procedures of the mandible on the basis of intraoperative parameters and clinical observations. Methods: The study was based on a medical record search of 40 patients who underwent surgical procedures because of benign pathological lesions of the jaws resulting in 3-wall bone defects of the mandible and qualified for surgical removal of the lesion with simultaneous bone grafting of the defect with autogenous cancellous bone harvested from the proximal tibia. Results: The use of the proximal tibia for bone grafting procedures enables large amounts of cancellous bone (15.09 cc in average) to be obtained. The procedure is characterized by a low risk of early and late complications, which include excessive bleeding, wound infection, lengthy healing time, scars, a loss of sensation around the scars, aching, a dip in bone, swelling and tenderness. Conclusions: The ability to obtain large amounts of cancellous bone and a low risk of intra- and postoperative complications make the proximal tibia an attractive donor site for the bone grafting procedures in maxillofacial surgery.
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Abstract
Bone regeneration is a central focus of maxillofacial research, especially when dealing with dental implants or critical sized wound sites. While bone has great regeneration potential, exogenous delivery of growth factors can greatly enhance the speed, duration, and quality of osseointegration, making a difference in a patient’s quality of life. Bone morphogenic protein 2 (BMP-2) is a highly potent growth factor that acts as a recruiting molecule for mesenchymal stromal cells, induces a rapid differentiation of them into osteoblasts, while also maintaining their viability. Currently, the literature data shows that the liposomal direct delivery or transfection of plasmids containing BMP-2 at the bone wound site often results in the overexpression of osteogenic markers and result in enhanced mineralization with formation of new bone matrix. We reviewed the literature on the scientific data regarding BMP-2 delivery with the help of liposomes. This may provide the ground for a future new bone regeneration strategy with real chances of reaching clinical practice.
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Cirelli JA, Fiorini T, Moreira CHC, Molon RSD, Dutra TP, Sallum EA. Periodontal regeneration: is it still a goal in clinical periodontology? Braz Oral Res 2021; 35:e09. [PMID: 34586211 DOI: 10.1590/1807-3107bor-2021.vol35.0097] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 03/31/2021] [Indexed: 11/22/2022] Open
Abstract
In the last decades, Periodontal Regeneration has been one of the most discussed topics in Periodontics, attracting the attention of researchers and clinicians. This can be justified by the evident and continuous progress observed in the field, characterized by a better understanding of the biological mechanisms involved, significant improvement of operative and technical principles, and the emergence of a wide range of biomaterials available for this purpose. Together, these aspects put the theme much in evidence in the search for functional and esthetic therapeutic solutions for periodontal tissue destruction. Despite the evident evolution, periodontal regeneration may be challenging and require the clinician to carefully evaluate each case before making a therapeutic decision. With a critical reassessment of the clinical and preclinical literature, the present study aimed to discuss the topic to answer whether Periodontal Regeneration is still a goal in clinical periodontology. The main aspects involved in the probability of success or failure of regenerative approaches were considered. A greater focus was given to intrabony and furcation defects, clinical conditions with greater therapeutic predictability. Aspects such as more appropriate materials/approaches, long-term benefits and their justification for a higher initial cost were discussed for each condition. In general, deep intrabony defects associated with residual pockets and buccal/lingual class II furcation lesions have predictable and clinically relevant results. Careful selection of the case (based on patient and defect characteristics) and excellent maintenance are essential conditions to ensure initial and long-term success.
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Affiliation(s)
- Joni Augusto Cirelli
- Universidade Estadual Paulista - Unesp, School of Dentistry at Araraquara, Department of Diagnosis and Surgery, Araraquara, SP, Brazil
| | - Tiago Fiorini
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Department of Conservative Dentistry, Porto Alegre, RS, Brazil
| | - Carlos Heitor Cunha Moreira
- Universidade Federal de Santa Maria - UFSM, School of Dentistry, Department of Stomatology, Santa Maria, RS, Brazil
| | - Rafael Scaf de Molon
- Universidade Estadual Paulista - Unesp, School of Dentistry at Araraquara, Department of Diagnosis and Surgery, Araraquara, SP, Brazil
| | - Tamires Pereira Dutra
- Universidade Estadual de Campinas - Unicamp, Piracicaba Dental School - Department of Prosthodontics and Periodontics, Piracicaba, SP, Brazil
| | - Enílson Antonio Sallum
- Universidade Estadual de Campinas - Unicamp, Piracicaba Dental School - Department of Prosthodontics and Periodontics, Piracicaba, SP, Brazil
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11
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Alkaabi SA, Alsabri GA, NatsirKalla DS, Alavi SA, Mueller WEG, Forouzanfar T, Helder MN. A systematic review on regenerative alveolar graft materials in clinical trials: Risk of bias and meta-analysis. J Plast Reconstr Aesthet Surg 2021; 75:356-365. [PMID: 34642060 DOI: 10.1016/j.bjps.2021.08.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 06/16/2021] [Accepted: 08/26/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Alveolar cleft grafting is a necessary procedure to restore bone defects. Randomized clinical trials (RCTs) are regarded as a golden standard for investigating the efficacy of treatments. Nevertheless, risk of bias (RoB) can still affect the validity of these trials. We aimed to conduct a systemic review of all control trials (CTs) using regenerative materials for alveolar cleft reconstructions to evaluate their RoB and perform a meta-analysis of new bone formation. METHODS Cochrane Oral Health Group's Trials Register, the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE (PubMed), EMBASE AND Google Scholar were searched up to October 2020. Thereafter, the articles underwent quality assessment (according to the Jadad scale and the Delphi list) for the evaluation of the RoB. RESULTS A total of 15 trials met the inclusion criteria, none of which reached a full score. Of these, 20% didn't randomize the trails, 73,33% failed to describe the way of randomization, and none reported the double-blinded criteria. Furthermore, allocation concealment (99.9%), intention to treat (100%), and patient awareness (100%) were inadequately described. The meta-analysis found no significant difference between regenerative materials and iliac crest graft. CONCLUSION This review showed high RoB in CTs implying quality improvement of CTs is necessary. Meta-analysis showed no significant difference between the regenerative materials and autogenous grafts.
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Affiliation(s)
- S A Alkaabi
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands; Department of Oral and Maxillofacial Surgery, Fujairah Hospital, Ministry of Health, United Arab Emirates.
| | - G A Alsabri
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - D S NatsirKalla
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands; Department of Biochemistry, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - S A Alavi
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - W E G Mueller
- Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - T Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - M N Helder
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
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12
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Furuhata M, Takayama T, Yamamoto T, Ozawa Y, Senoo M, Ozaki M, Yamano S, Sato S. Real-time assessment of guided bone regeneration in critical size mandibular bone defects in rats using collagen membranes with adjunct fibroblast growth factor-2. J Dent Sci 2021; 16:1170-1181. [PMID: 34484585 PMCID: PMC8403809 DOI: 10.1016/j.jds.2021.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/14/2021] [Indexed: 10/27/2022] Open
Abstract
Background/purpose Fibroblast growth factor-2 (FGF-2) regulates bone formation. The concept of guided bone regeneration using a resorbable collagen membrane (RCM) is generally accepted in implant dentistry. This study aimed to investigate the bone healing pattern in rat mandibular bone defects in real-time with and without RCM containing FGF-2 (RCM/FGF-2). Materials and methods Critical-size circular bone defects (4.0 mm diameter) were created on both sides of the rat mandibular bone. The defects were randomly divided into the following groups: control, RCM alone, RCM containing low (0.5 μg) or high (2.0 μg) concentration of FGF-2. We performed real-time in vivo micro-computerized tomography scans at the baseline and at 2, 4, and 6 weeks, and measured the volume of newly formed bone (NFB), bone mineral density (BMD) of NFB, and the closure percentage of the NFB area. At 6 weeks, the mandibular specimens were assessed histologically and histomorphometrically to evaluate the area of new bone regeneration. Results Real-time assessment revealed a significant increase in the volume, BMD, and closure percentage of the NFB area in the RCM/FGF-2-treated groups than that in the control and RCM groups. In the H-FGF-2 group, the volume and BMD of NFB exhibited a significant increase at 6 weeks than that at the baseline. Histological evaluation revealed the presence of osteoblasts, osteocytes, and blood vessels within the NFB. Conclusion The real-time in vivo experiment demonstrated that RCM/FGF-2 effectively promoted bone regeneration within the critical-size mandibular defects in rats and verified new bone formation starting in the early postoperative phase.
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Affiliation(s)
- Mitsuaki Furuhata
- Division of Applied Oral Sciences, Nihon University Graduate School of Dentistry, Tokyo, Japan
| | - Tadahiro Takayama
- Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan.,Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | - Takanobu Yamamoto
- Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan
| | - Yasumasa Ozawa
- Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan
| | - Motoki Senoo
- Division of Applied Oral Sciences, Nihon University Graduate School of Dentistry, Tokyo, Japan
| | - Manami Ozaki
- Department of Oral Health Sciences, Nihon University School of Dentistry, Tokyo, Japan.,Division of Functional Morphology, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | - Seiichi Yamano
- Department of Prosthodontics, New York University College of Dentistry, NY, USA
| | - Shuichi Sato
- Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan.,Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
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13
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Fujioka-Kobayashi M, Marjanowski SD, Kono M, Hino S, Saulacic N, Schaller B. Osteoinductive potential of recombinant BMP-9 in bone defects of mice treated with antiresorptive agents. Int J Oral Maxillofac Surg 2021; 51:566-575. [PMID: 34454793 DOI: 10.1016/j.ijom.2021.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/19/2021] [Accepted: 08/12/2021] [Indexed: 11/26/2022]
Abstract
The aim of the present study was to investigate the effects of recombinant human (rh)BMP-9 on bone regenerative potential in a mouse model of antibody-mediated antiresorptive therapy (AMART). A monoclonal anti-murine receptor activator of nuclear factor-kappa B ligand (RANKL) antibody (mAb) was used to create an AMART model in mice. rhBMP-9 combined with collagen membrane was implanted in calvarial defects in mAb-treated mice. After 4 weeks, the bone formative potential in the defects was evaluated by micro-computed tomography and histological approaches. The groups implanted with rhBMP-9-containing collagen membranes demonstrated substantial osteopromotive potential, with significantly greater new bone volume (Sham + BMP-9 group; 0.86 ± 0.29 mm3 and mAb + BMP-9 group; 0.64 ± 0.16 mm3) than control PBS-membranes (Sham + PBS group; 0.44 ± 0.29 mm3 and mAb + PBS group; 0.24 ± 0.12 mm3) in both sham and mAb-treated mice. In line with in vivo study, bone marrow cells isolated from both sham and mAb-treated mice confirmed greater osteogenic potential upon stimulation with rhBMP-9 in vitro. These findings suggest for the first time that local rhBMP-9 administration might be a strategy to accelerate bone regeneration in the context of AMART.
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Affiliation(s)
- M Fujioka-Kobayashi
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan.
| | - S D Marjanowski
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - M Kono
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department of Oral and Maxillofacial Surgery, Tokyo Medical University, Tokyo, Japan
| | - S Hino
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department of Oral and Maxillofacial Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - N Saulacic
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - B Schaller
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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14
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Promotion of Bone Regeneration Using Bioinspired PLGA/MH/ECM Scaffold Combined with Bioactive PDRN. MATERIALS 2021; 14:ma14154149. [PMID: 34361342 PMCID: PMC8348682 DOI: 10.3390/ma14154149] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/26/2021] [Accepted: 07/22/2021] [Indexed: 12/16/2022]
Abstract
Current approaches of biomaterials for the repair of critical-sized bone defects still require immense effort to overcome numerous obstacles. The biodegradable polymer-based scaffolds have been required to expand further function for bone tissue engineering. Poly(lactic-co-glycolic) acid (PLGA) is one of the most common biopolymers owing to its biodegradability for tissue regenerations. However, there are major clinical challenges that the byproducts of the PLGA cause an acidic environment of implanting site. The critical processes in bone repair are osteogenesis, angiogenesis, and inhibition of excessive osteoclastogenesis. In this study, the porous PLGA (P) scaffold was combined with magnesium hydroxide (MH, M) and bone-extracellular matrix (bECM, E) to improve anti-inflammatory ability and osteoconductivity. Additionally, the bioactive polydeoxyribonucleotide (PDRN, P) was additionally incorporated in the existing PME scaffold. The prepared PMEP scaffold has pro-osteogenic and pro-angiogenic effects and inhibition of osteoclast due to the PDRN, which interacts with the adenosine A2A receptor agonist that up-regulates expression of vascular endothelial growth factor (VEGF) and down-regulates inflammatory cytokines. The PMEP scaffold has superior biological properties for human bone-marrow mesenchymal stem cells (hBMSCs) adhesion, proliferation, and osteogenic differentiation in vitro. Moreover, the gene expressions related to osteogenesis and angiogenesis of hBMSCs increased and the inflammatory factors decreased on the PMEP scaffold. In conclusion, it provides a promising strategy and clinical potential candidate for bone tissue regeneration and repairing bone defects.
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15
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Subbiah R, Ruehle MA, Klosterhoff BS, Lin AS, Hettiaratchi MH, Willett NJ, Bertassoni LE, García AJ, Guldberg RE. Triple growth factor delivery promotes functional bone regeneration following composite musculoskeletal trauma. Acta Biomater 2021; 127:180-192. [PMID: 33823326 DOI: 10.1016/j.actbio.2021.03.066] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 03/28/2021] [Accepted: 03/31/2021] [Indexed: 12/20/2022]
Abstract
Successful bone healing in severe trauma depends on early revascularization to restore oxygen, nutrient, growth factor, and progenitor cell supply to the injury. Therapeutic angiogenesis strategies have therefore been investigated to promote revascularization following severe bone injuries; however, results have been inconsistent. This is the first study investigating the effects of dual angiogenic growth factors (VEGF and PDGF) with low-dose bone morphogenetic protein-2 (BMP-2; 2.5 µg) on bone healing in a clinically challenging composite bone-muscle injury model. Our hydrogel-based delivery systems demonstrated a more than 90% protein entrapment efficiency and a controlled simultaneous release of three growth factors over 28 days. Co-stimulation of microvascular fragment constructs with VEGF and PDGF promoted vascular network formation in vitro compared to VEGF or PDGF alone. In an in vivo model of segmental bone and volumetric muscle loss injury, combined VEGF (5 µg) and PDGF (7.5 µg or 15 µg) delivery with a low dose of BMP-2 significantly enhanced regeneration of vascularized bone compared to BMP-2 treatment alone. Notably, the regenerated bone mechanics reached ~60% of intact bone, a value that was previously only achieved by delivery of high-dose BMP-2 (10 µg) in this injury model. Overall, sustained delivery of VEGF, PDFG, and BMP-2 is a promising strategy to promote functional vascularized bone tissue regeneration following severe composite musculoskeletal injury. Although this study is conducted in a clinically relevant composite injury model in rats using a simultaneous release strategy, future studies are necessary to test the regenerative potential of spatiotemporally controlled delivery of triple growth factors on bone healing using large animal models. STATEMENT OF SIGNIFICANCE: Volumetric muscle loss combined with delayed union or non-union bone defect causes deleterious effects on bone regeneration even with the supplementation of bone morphogenetic protein-2 (BMP-2). In this study, the controlled delivery of dual angiogenic growth factors (vascular endothelial growth factor [VEGF] + Platelet-derived growth factor [PDGF]) increases vascular growth in vitro. Co-delivering VEGF+PDGF significantly increase the bone formation efficacy of low-dose BMP-2 and improves the mechanics of regenerated bone in a challenging composite bone-muscle injury model.
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16
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Lou Y, Wang H, Ye G, Li Y, Liu C, Yu M, Ying B. Periosteal Tissue Engineering: Current Developments and Perspectives. Adv Healthc Mater 2021; 10:e2100215. [PMID: 33938636 DOI: 10.1002/adhm.202100215] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/18/2021] [Indexed: 12/22/2022]
Abstract
Periosteum, a highly vascularized bilayer connective tissue membrane plays an indispensable role in the repair and regeneration of bone defects. It is involved in blood supply and delivery of progenitor cells and bioactive molecules in the defect area. However, sources of natural periosteum are limited, therefore, there is a need to develop tissue-engineered periosteum (TEP) mimicking the composition, structure, and function of natural periosteum. This review explores TEP construction strategies from the following perspectives: i) different materials for constructing TEP scaffolds; ii) mechanical properties and surface topography in TEP; iii) cell-based strategies for TEP construction; and iv) TEP combined with growth factors. In addition, current challenges and future perspectives for development of TEP are discussed.
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Affiliation(s)
- Yiting Lou
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
- Department of Stomatology, The Ningbo Hospital of Zhejiang University, and Ningbo First Hospital, 59 Liuting street, Ningbo, Zhejiang, 315000, China
| | - Huiming Wang
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Guanchen Ye
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Yongzheng Li
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Chao Liu
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Mengfei Yu
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine, Key Laboratory of Oral Biomedical Research of Zhejiang Province, 395 Yan'an road, Hangzhou, Zhejiang, 310003, China
| | - Binbin Ying
- Department of Stomatology, The Ningbo Hospital of Zhejiang University, and Ningbo First Hospital, 59 Liuting street, Ningbo, Zhejiang, 315000, China
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Doonquah L, Holmes PJ, Ranganathan LK, Robertson H. Bone Grafting for Implant Surgery. Oral Maxillofac Surg Clin North Am 2021; 33:211-229. [PMID: 33750652 DOI: 10.1016/j.coms.2021.01.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Osseous grafting serves to restore form and function to craniofacial defects. These grafts have been used with the aim of enhancing osteoinductive, osteoconductive, and osteogenic properties to address vertical and horizontal defects so as to render the edentulous ridge more amenable to implant placement. As the biology of bone grafts continues to be unearthed, the use of adjuvants to augment grafts has proved effective. Three-dimensional printing, tissue engineering with the use of stem cells, immunotyping and hormonal therapy all hold promise for the future in the thrust to discover the ideal graft.
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Affiliation(s)
- Ladi Doonquah
- Department of Surgery, University Hospital of the West Indies, 7 Golding Ave, Kingston 7, Jamaica; Faculty of Medicine, University of the West Indies, Kingston 7, Jamaica.
| | - Pierre-John Holmes
- Department of Faciomaxillary Surgery, Kingston Public Hospital, North Street, Kingston, Jamaica
| | - Laxman Kumar Ranganathan
- Department of Faciomaxillary Surgery, Kingston Public Hospital, North Street, Kingston, Jamaica; School of Dentistry, University of the West Indies, Kingston, Jamaica
| | - Hughette Robertson
- Otorhinolaryngology, Department of Surgery, Faculty of Medical Sciences, University of the West Indies, Kingston 7, Jamaica
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18
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Oliveira ÉR, Nie L, Podstawczyk D, Allahbakhsh A, Ratnayake J, Brasil DL, Shavandi A. Advances in Growth Factor Delivery for Bone Tissue Engineering. Int J Mol Sci 2021; 22:E903. [PMID: 33477502 PMCID: PMC7831065 DOI: 10.3390/ijms22020903] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/08/2021] [Accepted: 01/12/2021] [Indexed: 12/17/2022] Open
Abstract
Shortcomings related to the treatment of bone diseases and consequent tissue regeneration such as transplants have been addressed to some extent by tissue engineering and regenerative medicine. Tissue engineering has promoted structures that can simulate the extracellular matrix and are capable of guiding natural bone repair using signaling molecules to promote osteoinduction and angiogenesis essential in the formation of new bone tissues. Although recent studies on developing novel growth factor delivery systems for bone repair have attracted great attention, taking into account the complexity of the extracellular matrix, scaffolding and growth factors should not be explored independently. Consequently, systems that combine both concepts have great potential to promote the effectiveness of bone regeneration methods. In this review, recent developments in bone regeneration that simultaneously consider scaffolding and growth factors are covered in detail. The main emphasis in this overview is on delivery strategies that employ polymer-based scaffolds for spatiotemporal-controlled delivery of both single and multiple growth factors in bone-regeneration approaches. From clinical applications to creating alternative structural materials, bone tissue engineering has been advancing constantly, and it is relevant to regularly update related topics.
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Affiliation(s)
- Érica Resende Oliveira
- Food Engineering Department, School of Agronomy, Universidade Federal de Goiás, Campus Samambaia, Goiânia CEP 74690-900, Goiás, Brazil;
| | - Lei Nie
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China
| | - Daria Podstawczyk
- Department of Process Engineering and Technology of Polymer and Carbon Materials, Faculty of Chemistry, Wroclaw University of Science and Technology, 4/6 Norwida Street, 50-373 Wroclaw, Poland;
| | - Ahmad Allahbakhsh
- Department of Materials and Polymer Engineering, Faculty of Engineering, Hakim Sabzevari University, Sabzevar 9617976487, Iran;
| | - Jithendra Ratnayake
- Department of Oral Sciences, Faculty of Dentistry, University of Otago, Dunedin 9016, New Zealand;
| | - Dandara Lima Brasil
- Food Science Department, Universidade Federal de Lavras, Lavras CEP 37200-900, Minas Gerais, Brazil;
| | - Amin Shavandi
- BioMatter Unit—École Polytechnique de Bruxelles, Université Libre de Bruxelles, Avenue F.D. Roosevelt, 50—CP 165/61, 1050 Brussels, Belgium
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Kim SY, Kim YK, Chong SW, Lee KB, Lee MH. Osteogenic Effect of a Biodegradable BMP-2 Hydrogel Injected into a Cannulated Mg Screw. ACS Biomater Sci Eng 2020; 6:6173-6185. [PMID: 33449641 DOI: 10.1021/acsbiomaterials.0c00709] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Cannulated screws, containing an internal hole for inserting a guide pin, are commonly used in the management of bone fractures. Cannulated Mg screws can be biodegraded easily because their increased surface area including that of the inner hole rapidly reacts with body fluids. To delay biodegradation of cannulated Mg screws and improve bone regeneration, we developed a specific type of screw by injecting it with gelatin hydrogels [10 wt % gelatin(gel) with 0.09 v/v % glutaraldehyde (cross-linker)] containing different concentrations (5, 10, or 25 μg/mL) of bone morphogenic proteins (BMPs). We analyzed the properties and biocompatibility of the screws with and without BMP-2 and found that the release rate of BMP-2 in the hydrogel changed proportionately with the degradation rate of the cross-linked hydrogel. Loading BMP-2 in the hydrogel resulted in sustained release of BMP-2 for 25 to 40 days or more. The degradation rate of BMP-2 hydrogels was inversely proportional to the concentration of BMP-2. The injection of the hydrogels in the cannulated screw delayed biodegradation inside of the screw by simulated body fluid. It also induced uniform corrosion and the precipitation of bioactive compounds onto the surface of the screw. In addition, osteoblast proliferation was very active near the BMP-2 hydrogels, depending on the BMP-2 concentration. The BMP-2 in the hydrogel improved cell differentiation. The cannulated screw injected with 10 μL/mL BMP-2 hydrogel prevented implant biodegradation and enhanced osteoconduction and osteointegration inside and outside the screw. In addition, the properties of BMP-2-loaded hydrogels can be changed by controlling the amount of the cross-linker and protein, which could be useful for tissue regeneration in other fields.
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Affiliation(s)
- Seo-Young Kim
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience and BK21 Plus Project, School of Dentistry, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Yu-Kyoung Kim
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience and BK21 Plus Project, School of Dentistry, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
| | - Seong-Woo Chong
- Department of Orthopedic Surgery, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School, Gungiro 20, Deokjin-Gu, Jeonju-si, Jeollabuk-do 561-180, Republic of Korea
| | - Kwang-Bok Lee
- Department of Orthopedic Surgery, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School, Gungiro 20, Deokjin-Gu, Jeonju-si, Jeollabuk-do 561-180, Republic of Korea
| | - Min-Ho Lee
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience and BK21 Plus Project, School of Dentistry, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
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20
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Biomimetic Aspects of Oral and Dentofacial Regeneration. Biomimetics (Basel) 2020; 5:biomimetics5040051. [PMID: 33053903 PMCID: PMC7709662 DOI: 10.3390/biomimetics5040051] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/09/2020] [Accepted: 10/10/2020] [Indexed: 12/12/2022] Open
Abstract
Biomimetic materials for hard and soft tissues have advanced in the fields of tissue engineering and regenerative medicine in dentistry. To examine these recent advances, we searched Medline (OVID) with the key terms “biomimetics”, “biomaterials”, and “biomimicry” combined with MeSH terms for “dentistry” and limited the date of publication between 2010–2020. Over 500 articles were obtained under clinical trials, randomized clinical trials, metanalysis, and systematic reviews developed in the past 10 years in three major areas of dentistry: restorative, orofacial surgery, and periodontics. Clinical studies and systematic reviews along with hand-searched preclinical studies as potential therapies have been included. They support the proof-of-concept that novel treatments are in the pipeline towards ground-breaking clinical therapies for orofacial bone regeneration, tooth regeneration, repair of the oral mucosa, periodontal tissue engineering, and dental implants. Biomimicry enhances the clinical outcomes and calls for an interdisciplinary approach integrating medicine, bioengineering, biotechnology, and computational sciences to advance the current research to clinics. We conclude that dentistry has come a long way apropos of regenerative medicine; still, there are vast avenues to endeavour, seeking inspiration from other facets in biomedical research.
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Tóth F, Gáll JM, Tőzsér J, Hegedűs C. Effect of inducible bone morphogenetic protein 2 expression on the osteogenic differentiation of dental pulp stem cells in vitro. Bone 2020; 132:115214. [PMID: 31884130 DOI: 10.1016/j.bone.2019.115214] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 12/17/2019] [Accepted: 12/23/2019] [Indexed: 01/09/2023]
Abstract
Bone morphogenetic protein 2 (BMP-2) is a member of the transforming growth factor-β superfamily, it is known to be a factor involved in skeletal development and capable of inducing in vitro osteogenic differentiation of mesenchymal stem cells (MSCs). Dental pulp stem cells (DPSCs) isolated from extracted third molar teeth are an ideal resource for bone tissue engineering and regeneration applications, due to their convenient isolation, safe cryopreservation, and easy maintenance in cell cultures. The aims of this study were to deliver BMP-2 under control of the tetracycline-inducible (tet-on) promoter into dental pulp stem cells and to examine whether these BMP-2 expressing cell lines are capable of promoting osteogenic differentiation in vitro. BMP-2 gene was cloned into the lentiviral transfer plasmid pTet-IRES-EGFP and used to establish the DPSC-BMP-2 cell line. DPSC, DPSC-GFP (mock) and DPSC-BMP-2 cell lines were cultured in growth medium or osteogenic medium in the presence or absence of 100 ng/ml doxycycline. To assess differentiation, alkaline phosphatase activity, calcium accumulation and gene transcription levels of different genes involved in osteogenic differentiation (BMP-2, Runx2, alkaline phosphatase, and noggin) were measured. Doxycycline-induced BMP-2 expression induced the differentiation of DPSCs into the preosteoblastic stage but could not favor the further maturation into osteoblasts and osteocytes. We found that while Runx2 gene transcription was continuously upregulated in doxycycline-treated DPSC-BMP-2 cells, the alkaline phosphatase activity and the accumulation of minerals were reduced. As a result of the increased BMP-2 expression, the transcription level of the BMP antagonist noggin was also upregulated, and probably caused the observed effects regarding alkaline phosphatase (ALP) activity and mineral deposition. Our study shows that this system is effective in controlling transgene expression in DPSC cell line. Exploration of all known factors affecting osteogenic differentiation and their interactions is of major importance for the field of regenerative medicine. As the metabolic reaction to the upregulated transgene transcription appears to be cell line-specific, a wrongly selected target gene and/or regulation system could have adverse effects on differentiation.
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Affiliation(s)
- Ferenc Tóth
- Department of Biomaterials and Prosthetic Dentistry, Faculty of Dentistry, University of Debrecen, Debrecen, Hungary.
| | - József M Gáll
- Department of Applied Mathematics and Probability Theory, Faculty of Informatics, University of Debrecen, Debrecen, Hungary.
| | - József Tőzsér
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
| | - Csaba Hegedűs
- Department of Biomaterials and Prosthetic Dentistry, Faculty of Dentistry, University of Debrecen, Debrecen, Hungary.
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22
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Klein A, Baranowski A, Ritz U, Mack C, Götz H, Langendorf E, Al-Nawas B, Drees P, Rommens PM, Hofmann A. Effect of bone sialoprotein coating on progression of bone formation in a femoral defect model in rats. Eur J Trauma Emerg Surg 2019; 46:277-286. [PMID: 31139842 DOI: 10.1007/s00068-019-01159-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 05/21/2019] [Indexed: 11/26/2022]
Abstract
PURPOSE In orthopedic and trauma surgery, calcium phosphate cement (CPC) scaffolds are widely used as substitute for autologous bone grafts. The purpose of this study was to evaluate bone formation in a femoral condyle defect model in rats after scaffold-coating with bioactive bone sialoprotein (BSP). Our hypothesis was that BSP-coating results in additional bone formation. METHODS In 20 Wistar rats, defects of 3.0 mm diameter were drilled into the lateral femoral condyles of both legs. BSP-coated scaffolds or uncoated control scaffolds were implanted into the defects. After 4 and 8 weeks, five rats of each group were euthanized, respectively. µCT scans and histological analyses were performed. The ratio of bone volume-total volume (BV/TV) was analyzed and histological sections were evaluated. RESULTS At week four, bone fraction reached 5.2 ± 1.7% in BSP-coated scaffolds and 4.5 ± 3.2% in the control (p = 0.06). While bone fraction of the BSP-group did not change much between week four and eight [week eight: 5.4 ± 3.8% (p = 0.53)], there was a tendency towards an increase in the control [week eight: 7.0 ± 2.2% (p = 0.08)]. No significant difference in bone fraction were observable between BSP-coated and uncoated scaffolds at week eight (p = 0.08). CONCLUSIONS A significant superiority of BSP-coated scaffolds over uncoated scaffolds could not be proven. However, BSP-coating showed a tendency towards improving bone ingrowth in the scaffolds 4 weeks after implantation. This effect was only short-lived: bone growth in the control scaffolds tended to outpace that of the BSP-group at week eight.
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Affiliation(s)
- Anja Klein
- Department of Orthopaedics and Traumatology, Biomatics Group, University Medical Centre of the Johannes Gutenberg University, Mainz, Germany
| | - Andreas Baranowski
- Department of Orthopaedics and Traumatology, Biomatics Group, University Medical Centre of the Johannes Gutenberg University, Mainz, Germany.
| | - Ulrike Ritz
- Department of Orthopaedics and Traumatology, Biomatics Group, University Medical Centre of the Johannes Gutenberg University, Mainz, Germany
| | - Christiane Mack
- Department of Orthopaedics and Traumatology, Biomatics Group, University Medical Centre of the Johannes Gutenberg University, Mainz, Germany
| | - Hermann Götz
- Platform for Biomaterial Research, Biomatics Group, University Medical Centre of the Johannes Gutenberg University, Mainz, Germany
| | - Eva Langendorf
- Department of Orthopaedics and Traumatology, Biomatics Group, University Medical Centre of the Johannes Gutenberg University, Mainz, Germany
| | - Bilal Al-Nawas
- Department of Oral and Maxillofacial Surgery, University Medical Centre of the Johannes Gutenberg University, Mainz, Germany
| | - Philipp Drees
- Department of Orthopaedics and Traumatology, Biomatics Group, University Medical Centre of the Johannes Gutenberg University, Mainz, Germany
| | - Pol M Rommens
- Department of Orthopaedics and Traumatology, Biomatics Group, University Medical Centre of the Johannes Gutenberg University, Mainz, Germany
| | - Alexander Hofmann
- Department of Orthopaedics and Traumatology, Biomatics Group, University Medical Centre of the Johannes Gutenberg University, Mainz, Germany
- Department of Traumatology and Orthopaedics 1, Westpfalz-Medical Centre Kaiserslautern, Kaiserslautern, Germany
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23
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Aghaloo TL, Tencati E, Hadaya D. Biomimetic Enhancement of Bone Graft Reconstruction. Oral Maxillofac Surg Clin North Am 2019; 31:193-205. [DOI: 10.1016/j.coms.2018.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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24
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Khojasteh A, Hosseinpour S, Rezai Rad M, Alikhasi M, Zadeh HH. Buccal fat pad-derived stem cells with anorganic bovine bone mineral scaffold for augmentation of atrophic posterior mandible: An exploratory prospective clinical study. Clin Implant Dent Relat Res 2019; 21:292-300. [PMID: 30821120 DOI: 10.1111/cid.12729] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/19/2018] [Accepted: 12/18/2018] [Indexed: 12/23/2022]
Abstract
BACKGROUND Application of adipose-derived stem cells originated from buccal fat pad (BFP) can simplify surgical procedures and diminish clinical risks compared to large autograft harvesting. PURPOSE This study sought to evaluate and compare the efficacy of buccal fat pad-derived stem cells (BFPSCs) in combination with anorganic bovine bone mineral (ABBM) for vertical and horizontal augmentation of atrophic posterior mandibles. MATERIALS AND METHODS Fourteen patients with atrophic posterior mandible were elected for this prospective exploratory study. BFP (3-5 mL) was harvested and BFPSCs were isolated and combined with ABBM at 50% ratio. The vertical and horizontal alveolar deficiencies were augmented by 50% mixture of ABBM with either BFPSCs (group 1) or particulated autologous bone (group 2). Titanium mesh was contoured to the desired 3D shape of the alveolar ridge and fixated to the host sites over the graft material of the two groups. At first, the amount of new bone areas was calculated by quantitative analysis of cone beam computed tomography (CBCT) images that were taken 6 months postoperatively according to regenerative techniques (group 1 vs group 2 without considering the type of bone defects). Second, these amounts were calculated in each group based on the type of defects. RESULTS Quantitative analysis of CBCT images revealed the areas of new bone formation were 169.5 ± 5.90 mm2 and 166.75 ± 10.05 mm2 in groups 1 and 2, respectively. The area of new bone formation for vertical defects were 164.91 ± 3.74 mm2 and 169.36 ± 12.09 mm2 in groups 1 and 2, respectively. The area of new bone formation for horizontal deficiencies were 170.51 ± 4.54 mm2 and 166.98 ± 9.36 mm2 in groups 1 and 2, respectively. There were no statistically significant differences between the two groups in any of the pair-wise comparisons (P > 0.05). CONCLUSIONS The findings of the present study demonstrated lack of difference in bone volume formation between BFPSCs and autologous particulate bone in combination with ABBM. If confirmed by future large-scale clinical trial, BFPSCs may provide an alternative to autogenous bone for reconstruction of alveolar ridge defects.
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Affiliation(s)
- Arash Khojasteh
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sepanta Hosseinpour
- School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Rezai Rad
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marzieh Alikhasi
- Dental Research Center, Dentistry Research Institute, Department of Prosthodontics, School of dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Homayoun H Zadeh
- Laboratory for Immunoregulation and Tissue Engineering (LITE), Ostrow School of Dentistry of USC, University of Southern California, Los Angeles, California
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da Rosa WLDO, da Silva TM, Galarça AD, Piva E, da Silva AF. Efficacy of rhBMP-2 in Cleft Lip and Palate Defects: Systematic Review and Meta-analysis. Calcif Tissue Int 2019; 104:115-129. [PMID: 30367200 DOI: 10.1007/s00223-018-0486-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 10/15/2018] [Indexed: 01/21/2023]
Abstract
The aim of this study was to analyze the efficacy of using rhBMP-2 (recombinant human morphogenetic protein-2) in the treatment of patients with cleft lip and palate defects (CLPD). Seven databases were screened: PubMed (Medline), Lilacs, Ibecs, Web of Science, BBO, Scopus, and The Cochrane Library. Clinical trials that evaluated the use of bioactive treatment with rhBMP-2 in the treatment of patients with CLPD were included. Statistical analyses were performed by comparing the standardized mean difference of bone formation volume and bone filling percentage (p = 0.05). Ten studies compared the use of rhBMP-2 and iliac crest bone graft (ICBG). The global analysis for bone formation volume and bone filling percentage showed that bioactive materials were similar to ICBG with a standardized mean difference of respectively 0.07 (95% CI - 0.41 to 0.56) and 0.24 (95% CI - 0.32 to 0.80). The available literature suggested that use of rhBMP-2 presented similar bone formation results to those of ICBG in secondary alveolar bone grafting for patients with CLPD.
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Affiliation(s)
| | - Tiago Machado da Silva
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - Arthur Dias Galarça
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - Evandro Piva
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - Adriana Fernandes da Silva
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil.
- Department of Restorative Dentistry, Faculty of Dentistry, Federal University of Pelotas, Gonçalves Chaves St., 457, Room 503, Pelotas, RS, 96015-560, Brazil.
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Subbiah R, Guldberg RE. Materials Science and Design Principles of Growth Factor Delivery Systems in Tissue Engineering and Regenerative Medicine. Adv Healthc Mater 2019; 8:e1801000. [PMID: 30398700 DOI: 10.1002/adhm.201801000] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/13/2018] [Indexed: 01/22/2023]
Abstract
Growth factors (GFs) are signaling molecules that direct cell development by providing biochemical cues for stem cell proliferation, migration, and differentiation. GFs play a key role in tissue regeneration, but one major limitation of GF-based therapies is dosage-related adverse effects. Additionally, the clinical applications and efficacy of GFs are significantly affected by the efficiency of delivery systems and other pharmacokinetic factors. Hence, it is crucial to design delivery systems that provide optimal activity, stability, and tunable delivery for GFs. Understanding the physicochemical properties of the GFs and the biomaterials utilized for the development of biomimetic GF delivery systems is critical for GF-based regeneration. Many different delivery systems have been developed to achieve tunable delivery kinetics for single or multiple GFs. The identification of ideal biomaterials with tunable properties for spatiotemporal delivery of GFs is still challenging. This review characterizes the types, properties, and functions of GFs, the materials science of widely used biomaterials, and various GF loading strategies to comprehensively summarize the current delivery systems for tunable spatiotemporal delivery of GFs aimed for tissue regeneration applications. This review concludes by discussing fundamental design principles for GF delivery vehicles based on the interactive physicochemical properties of the proteins and biomaterials.
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Affiliation(s)
- Ramesh Subbiah
- Parker H. Petit Institute for Bioengineering and Bioscience; George W. Woodruff School of Mechanical Engineering; Georgia Institute of Technology; Atlanta GA 30332 USA
| | - Robert E. Guldberg
- Parker H. Petit Institute for Bioengineering and Bioscience; George W. Woodruff School of Mechanical Engineering; Georgia Institute of Technology; Atlanta GA 30332 USA
- Phil and Penny Knight Campus for Accelerating Scientific Impact; 6231 University of Oregon; Eugene OR 97403 USA
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Zhang Q, Qin M, Zhou X, Nie W, Wang W, Li L, He C. Porous nanofibrous scaffold incorporated with S1P loaded mesoporous silica nanoparticles and BMP-2 encapsulated PLGA microspheres for enhancing angiogenesis and osteogenesis. J Mater Chem B 2018; 6:6731-6743. [PMID: 32254690 DOI: 10.1039/c8tb02138d] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Repair of bone defects remains a major clinical challenge due to inadequate or abnormal vascularization in bone substitutes, which commonly leads to inferior bone formation or bone nonunion. Therefore, healing of bone defects requires the coordinated processes of angiogenesis and osteogenesis. In this study, sphingosine-1-phosphate (S1P) was initially loaded into mesoporous silica nanoparticles (MSNs) to form angiogenic microcarriers, which were subsequently embedded into porous nanofibrous poly-l-lactide (PLLA) scaffolds during a thermally induced phase separation (TIPS) process, while bone morphogenetic protein-2 (BMP-2) was encapsulated into poly(lactic-co-glycolic acid) (PLGA) microspheres to obtain osteogenic microcarriers, which were then integrated onto a MSNs/PLLA nanofibrous scaffold by a post seeding method. The osteogenic and angiogenic activities of the resulting dual-bioactive factor containing scaffolds were evaluated both in vitro and in vivo. The simulated drug release studies indicated that both bioactive factors will be released simultaneously and continuously from the fabricated composite scaffold. Moreover, the ectopic bone formation results showed that the sustained release of S1P and BMP-2 from the composite scaffold resulted in a synergistic effect on blood vessel formation and bone regeneration. Taken together, the results showed the promising application of the dual-bioactive factor loaded nanofibrous scaffold for enhanced bone regeneration.
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Affiliation(s)
- Qianqian Zhang
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
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Carlisle P, Guda T, Silliman DT, Burdette AJ, Talley AD, Alvarez R, Tucker D, Hale RG, Guelcher SA, BrownBaer PR. Localized low-dose rhBMP-2 is effective at promoting bone regeneration in mandibular segmental defects. J Biomed Mater Res B Appl Biomater 2018; 107:1491-1503. [PMID: 30265782 DOI: 10.1002/jbm.b.34241] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 08/11/2018] [Accepted: 08/18/2018] [Indexed: 12/29/2022]
Abstract
At least 26% of recent battlefield injuries are to the craniomaxillofacial (CMF) region. Recombinant human bone morphogenetic protein 2 (rhBMP-2) is used to treat CMF open fractures, but several complications have been associated with its use. This study tested the efficacy and safety of a lower (30% recommended) dose of rhBMP-2 to treat mandibular fractures. rhBMP-2 delivered via a polyurethane (PUR) and hydroxyapatite/β-tricalcium phosphate (Mastergraft®) scaffold was evaluated in a 2 cm segmental mandibular defect in minipigs. Bone regeneration was analyzed at 4, 8, and 12 weeks postsurgery using clinical computed tomography (CT) and rhBMP-2, and inflammatory marker concentrations were analyzed in serum and surgery-site drain effluent. CT scans revealed that pigs treated with PUR-Mastergraft® + rhBMP-2 had complete bone bridging, while the negative control group showed incomplete bone-bridging (n = 6). Volumetric analysis of regenerated bone showed that the PUR-Mastergraft® + rhBMP-2 treatment generated significantly more bone than control by 4 weeks, a trend that continued through 12 weeks. Variations in inflammatory analytes were detected in drain effluent samples and saliva but not in serum, suggesting a localized healing response. Importantly, the rhBMP-2 group did not exhibit an excessive increase in inflammatory analytes compared to control. Treatment with low-dose rhBMP-2 increases bone regeneration capacity in pigs with mandibular continuity defects and restores bone quality. Negative complications from rhBMP-2, such as excessive inflammatory analyte levels, were not observed. Together, these results suggest that treatment with low-dose rhBMP-2 is efficacious and may improve safety when treating CMF open fractures. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1491-1503, 2019.
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Affiliation(s)
- Patricia Carlisle
- Department of Craniomaxillofacial Regenerative Medicine, Dental and Trauma Research Detachment, Fort Sam Houston, Texas, 78234
| | - Teja Guda
- Department of Biomedical Engineering, University of Texas at San Antonio, San Antonio, Texas, 78249
| | - David T Silliman
- Department of Craniomaxillofacial Regenerative Medicine, Dental and Trauma Research Detachment, Fort Sam Houston, Texas, 78234
| | - Alexander J Burdette
- United States Naval Medical Research Unit-San Antonio, Fort Sam Houston, Texas, 78234
| | - Anne D Talley
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235
| | - Rene Alvarez
- United States Naval Medical Research Unit-San Antonio, Fort Sam Houston, Texas, 78234
| | - David Tucker
- Department of Craniomaxillofacial Regenerative Medicine, Dental and Trauma Research Detachment, Fort Sam Houston, Texas, 78234
| | - Robert G Hale
- Department of Craniomaxillofacial Regenerative Medicine, Dental and Trauma Research Detachment, Fort Sam Houston, Texas, 78234
| | - Scott A Guelcher
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235
| | - Pamela R BrownBaer
- Department of Craniomaxillofacial Regenerative Medicine, Dental and Trauma Research Detachment, Fort Sam Houston, Texas, 78234
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Vitamin K and Bone Metabolism: A Review of the Latest Evidence in Preclinical Studies. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4629383. [PMID: 30050932 PMCID: PMC6040265 DOI: 10.1155/2018/4629383] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 05/27/2018] [Indexed: 01/09/2023]
Abstract
Bone is a metabolically active tissue that renews itself throughout one's life. Cytokines along with several hormonal, nutritional, and growth factors are involved in tightly regulated bone remodeling. Accordingly, vitamin K as a multifunctional vitamin has been recently deemed appreciable as a topic of research as it plays a pivotal role in maintenance of the bone strength, and it has been proved to have a positive impact on the bone metabolism. Vitamin K exerts its anabolic effect on the bone turnover in different ways such as promoting osteoblast differentiation, upregulating transcription of specific genes in osteoblasts, and activating the bone-associated vitamin k dependent proteins which play critical roles in extracellular bone matrix mineralization. There is also credible evidence to support the effects of vitamin k2 on differentiation of other mesenchymal stem cells into osteoblast. The main objective of the present paper is to comprehensively outline the preclinical studies on the properties of vitamin K and its effects on the bone metabolism. The evidence could shed light on further clinical studies to improve osteogenesis in bone graft surgeries.
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Park MJ, Lee J, Byeon JS, Jeong DU, Gu NY, Cho IS, Cha SH. Effects of three-dimensional spheroid culture on equine mesenchymal stem cell plasticity. Vet Res Commun 2018; 42:171-181. [PMID: 29721754 DOI: 10.1007/s11259-018-9720-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 04/02/2018] [Indexed: 01/01/2023]
Abstract
Mesenchymal stem cells (MSCs) are useful candidates for tissue engineering and cell therapy fields. We optimize culture conditions of equine adipose tissue-derived MSCs (eAD-MSCs) for treatment of horse fractures. To investigate enhancing properties of three-dimensional (3D) culture system in eAD-MSCs, we performed various sized spheroid formation and determined changes in gene expression levels to obtain different sized spheroid for cell therapy. eAD-MSCs were successfully isolated from horse tailhead. Using hanging drop method, spheroid formation was generated for three days. Quantitative real-time PCR was performed to analyze gene expression. As results, expression levels of pluripotent markers were increased depending on spheroid size and the production of PGE2 was increased in spheroid formation compared to that in monolayer. Ki-67 showed a remarkable increase in the spheroid formed with 2.0 × 105 cells/drop as compared to that in the monolayer. Expression levels of angiogenesis-inducing factors such as VEGF, IL-6, IL-8, and IL-18 were significantly increased in spheroid formation compared to those in the monolayer. Expression levels of bone morphogenesis-inducing factors such as Cox-2 and TGF-β1 were also significantly increased in spheroid formation compared to those in the monolayer. Expression levels of osteocyte-specific markers such as RUNX2, osteocalcin, and differentiation potential were also significantly increased in spheroid formation compared to those in the monolayer. Therefore, spheroid formation of eAD-MSCs through the hanging drop method can increases the expression of angiogenesis-inducing and bone morphogenesis-inducing factors under optimal culture conditions.
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Affiliation(s)
- Mi Jeong Park
- Viral Disease Research Division, Animal and Plant Quarantine Agency, 177, Hyeoksin 8-ro, Gimcheon-si, Gyeongsangbuk-do, 39660, Republic of Korea
| | - Jienny Lee
- Viral Disease Research Division, Animal and Plant Quarantine Agency, 177, Hyeoksin 8-ro, Gimcheon-si, Gyeongsangbuk-do, 39660, Republic of Korea
| | - Jeong Su Byeon
- Viral Disease Research Division, Animal and Plant Quarantine Agency, 177, Hyeoksin 8-ro, Gimcheon-si, Gyeongsangbuk-do, 39660, Republic of Korea
| | - Da-Un Jeong
- Viral Disease Research Division, Animal and Plant Quarantine Agency, 177, Hyeoksin 8-ro, Gimcheon-si, Gyeongsangbuk-do, 39660, Republic of Korea
| | - Na-Yeon Gu
- Viral Disease Research Division, Animal and Plant Quarantine Agency, 177, Hyeoksin 8-ro, Gimcheon-si, Gyeongsangbuk-do, 39660, Republic of Korea
| | - In-Soo Cho
- Viral Disease Research Division, Animal and Plant Quarantine Agency, 177, Hyeoksin 8-ro, Gimcheon-si, Gyeongsangbuk-do, 39660, Republic of Korea
| | - Sang-Ho Cha
- Viral Disease Research Division, Animal and Plant Quarantine Agency, 177, Hyeoksin 8-ro, Gimcheon-si, Gyeongsangbuk-do, 39660, Republic of Korea.
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Antibody-Mediated Osseous Regeneration for Bone Tissue Engineering in Canine Segmental Defects. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9508721. [PMID: 29682573 PMCID: PMC5851338 DOI: 10.1155/2018/9508721] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 12/16/2017] [Accepted: 01/16/2018] [Indexed: 01/29/2023]
Abstract
Among many applications of therapeutic monoclonal antibodies (mAbs), a unique approach for regenerative medicine has entailed antibody-mediated osseous regeneration (AMOR). In an effort to identify a clinically relevant model of craniofacial defect, the present study investigated the efficacy of mAb specific for bone morphogenetic protein- (BMP-) 2 to repair canine segmental mandibular continuity defect model. Accordingly, a 15 mm unilateral segmental defect was created in mandible and fixated with a titanium plate. Anorganic bovine bone mineral with 10% collagen (ABBM-C) was functionalized with 25 μg/mL of either chimeric anti-BMP-2 mAb or isotype-matched mAb (negative control). Recombinant human (rh) BMP-2 served as positive control. Morphometric analyses were performed on computed tomography (CT) and histologic images. Bone densities within healed defect sites at 12 weeks after surgery were 1360.81 ± 10.52 Hounsfield Unit (HU), 1044.27 ± 141.16 HU, and 839.45 ± 179.41 HU, in sites with implanted anti-BMP-2 mAb, rhBMP-2, and isotype mAb groups, respectively. Osteoid bone formation in anti-BMP-2 mAb (42.99% ± 8.67) and rhBMP-2 (48.97% ± 2.96) groups was not significantly different but was higher (p < 0.05) than in sites with isotype control mAb (26.8% ± 5.35). In view of the long-term objective of translational application of AMOR in humans, the results of the present study demonstrated the feasibility of AMOR in a large clinically relevant animal model.
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BMP-2 delivered from a self-cross-linkable CaP/hydrogel construct promotes bone regeneration in a critical-size segmental defect model of non-union in dogs. Vet Comp Orthop Traumatol 2017; 27:411-21. [DOI: 10.3415/vcot-14-03-0036] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 07/31/2014] [Indexed: 11/17/2022]
Abstract
SummaryObjectives: To determine whether the addition of recombinant human bone morphogenetic protein (rhBMP-2) to a self-crosslinkable cellulosic hydrogel/biphasic calcium phosphate (BCP) granules construct promotes bone healing in critical-size ulnar defects in dogs.Methods: A standardized 2 cm long ulnar ostectomy was performed bilaterally in five dogs to compare bone healing with hydrogel/BCP constructs associated with or without rhBMP-2. Cancellous-bone autografts were used as positive controls in unilateral ulnar defects in five additional dogs. Radiographically, bone healing was evaluated at four, eight, 12, 16 and 20 weeks postoperatively. Histological qualitative analysis with microCT imaging and light and scanning electron microscopy were performed 20 weeks after implantation.Results: All rhBMP-2-loaded constructs induced the formation of well-differentiated mineralized lamellar bone surrounding the BCP granules and bridging bone/implant interfaces as early as eight weeks after surgery. Bone regeneration appeared to develop earlier with the rhBMP-2 constructs than with the cancellous-bone autografts while similar results were obtained at 20 weeks. Constructs without any rhBMP-2 showed osteoconductive properties limited to the bone junctions and a lack of osteoinduction without bone ingrowth within the implantation site. In one dog, the leakage of the hydrogel loaded with rhBMP-2 induced an extensive heterotopic bone formation.Clinical significance: The addition of rhBMP-2 to a self-crosslinkable hydrogel/BCP construct could promote bone regeneration in a critical-size-defect model with similar performance to autologous bone grafts.
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Shanbhag S, Pandis N, Mustafa K, Nyengaard JR, Stavropoulos A. Alveolar bone tissue engineering in critical-size defects of experimental animal models: a systematic review and meta-analysis. J Tissue Eng Regen Med 2017; 11:2935-2949. [PMID: 27524517 DOI: 10.1002/term.2198] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 01/07/2016] [Accepted: 03/14/2016] [Indexed: 01/17/2023]
Abstract
Regeneration of large, 'critical-size' bone defects remains a clinical challenge. Bone tissue engineering (BTE) is emerging as a promising alternative to autogenous, allogeneic and biomaterial-based bone grafting. The objective of this systematic review was to answer the focused question: in animal models, do cell-based BTE strategies enhance regeneration in alveolar bone critical-size defects (CSDs), compared with grafting with only biomaterial scaffolds or autogenous bone? Following PRISMA guidelines, electronic databases were searched for controlled animal studies reporting maxillary or mandibular CSD and implantation of mesenchymal stem cells (MSCs) or osteoblasts (OBs) seeded on biomaterial scaffolds. A random effects meta-analysis was performed for the outcome histomorphometric new bone formation (%NBF). Thirty-six studies were included that reported on large- (monkeys, dogs, sheep, minipigs) and small-animal (rabbits, rats) models. On average, studies presented with an unclear-to-high risk of bias and short observation times. In most studies, MSCs or OBs were used in combination with alloplastic mineral-phase scaffolds. In five studies, cells were modified by ex vivo gene transfer of bone morphogenetic proteins (BMPs). The meta-analysis indicated statistically significant benefits in favour of: (1) cell-loaded vs. cell-free scaffolds [weighted mean difference (WMD) 15.59-49.15% and 8.60-13.85% NBF in large- and small-animal models, respectively]; and (2) BMP-gene-modified vs. unmodified cells (WMD 10.06-20.83% NBF in small-animal models). Results of cell-loaded scaffolds vs. autogenous bone were inconclusive. Overall, heterogeneity in the meta-analysis was high (I2 > 90%). In summary, alveolar bone regeneration is enhanced by addition of osteogenic cells to biomaterial scaffolds. The direction and estimates of treatment effect are useful to predict therapeutic efficacy and guide future clinical trials of BTE. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Siddharth Shanbhag
- Department of Clinical Dentistry, Centre for Clinical Dental Research, University of Bergen, Bergen, Norway
- Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Nikolaos Pandis
- Department of Orthodontics and Dentofacial Orthopedics, University of Bern, Bern, Switzerland
| | - Kamal Mustafa
- Department of Clinical Dentistry, Centre for Clinical Dental Research, University of Bergen, Bergen, Norway
| | - Jens R Nyengaard
- Stereology and Electron Microscopy Laboratory, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Andreas Stavropoulos
- Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden
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Shinohara Y, Nakamura T, Shirakata Y, Noguchi K. Bone healing capabilities of recombinant human bone morphogenetic protein-9 (rhBMP-9) with a chitosan or collagen carrier in rat calvarial defects. Dent Mater J 2017; 35:454-60. [PMID: 27252002 DOI: 10.4012/dmj.2015-242] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to examine the effects of recombinant human BMP-9 (rhBMP-9) with chitosan sponge (ChiS) or absorbable collagen sponge (ACS) on bone formation in rat calvarial defects. The defects were treated by one of the following implantations: ChiS, rhBMP-9/ChiS, ACS, rhBMP-9/ACS and no implantation. The animals were euthanized at 8 weeks for histological evaluation. The percentage of defect closure (DC) in the rhBMP-9/ACS group was significantly greater than that in the ACS group. The rhBMP-9/ACS group demonstrated the highest level of DC among all the groups. The newly formed bone area (NBA) and NBA/total area in the ChiS-implanted groups and in the rhBMP-9/ACS group were significantly greater compared with those in the ACS group. It can be concluded that rhBMP-9/ACS has a potential to induce bone formation in rat calvarial defects. Further studies are required to elucidate the mechanism of bone formation induced by rhBMP-9.
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Affiliation(s)
- Yukiya Shinohara
- Department of Periodontology, Kagoshima University Graduate School of Medical and Dental Sciences
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Puolakkainen T, Rummukainen P, Lehto J, Ritvos O, Hiltunen A, Säämänen AM, Kiviranta R. Soluble activin type IIB receptor improves fracture healing in a closed tibial fracture mouse model. PLoS One 2017; 12:e0180593. [PMID: 28704409 PMCID: PMC5509431 DOI: 10.1371/journal.pone.0180593] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 06/16/2017] [Indexed: 12/26/2022] Open
Abstract
Fractures still present a significant burden to patients due to pain and periods of unproductivity. Numerous growth factors have been identified to regulate bone remodeling. However, to date, only the bone morphogenetic proteins (BMPs) are used to enhance fracture healing in clinical settings. Activins are pleiotropic growth factors belonging to the TGF-β superfamily. We and others have recently shown that treatment with recombinant fusion proteins of activin receptors greatly increases bone mass in different animal models by trapping activins and other ligands thus inhibiting their signaling pathways. However, their effects on fracture healing are less known. Twelve-week old male C57Bl mice were subjected to a standardized, closed tibial fracture model. Animals were divided into control and treatment groups and were administered either PBS control or a soluble activin type IIB receptor (ActRIIB-Fc) intraperitoneally once a week for a duration of two or four weeks. There were no significant differences between the groups at two weeks but we observed a significant increase in callus mineralization in ActRIIB-Fc-treated animals by microcomputed tomography imaging at four weeks. Bone volume per tissue volume was 60%, trabecular number 55% and bone mineral density 60% higher in the 4-week calluses of the ActRIIB-Fc-treated mice (p<0.05 in all). Biomechanical strength of 4-week calluses was also significantly improved by ActRIIB-Fc treatment as stiffness increased by 64% and maximum force by 45% (p<0.05) compared to the PBS-injected controls. These results demonstrate that ActRIIB-Fc treatment significantly improves healing of closed long bone fractures. Our findings support the previous reports of activin receptors increasing bone mass but also demonstrate a novel approach for using ActRIIB-Fc to enhance fracture healing.
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Affiliation(s)
| | | | - Jemina Lehto
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Olli Ritvos
- Department of Physiology, University of Helsinki, Helsinki, Finland
| | | | | | - Riku Kiviranta
- Institute of Biomedicine, University of Turku, Turku, Finland.,Division of Endocrinology, Turku University Hospital, Turku, Finland
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Shanbhag S, Pandis N, Mustafa K, Nyengaard JR, Stavropoulos A. Bone tissue engineering in oral peri-implant defects in preclinical in vivo research: A systematic review and meta-analysis. J Tissue Eng Regen Med 2017; 12:e336-e349. [PMID: 28095650 DOI: 10.1002/term.2412] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 10/23/2016] [Accepted: 01/13/2017] [Indexed: 12/12/2022]
Abstract
The regeneration and establishment of osseointegration within oral peri-implant bone defects remains a clinical challenge. Bone tissue engineering (BTE) is emerging as a promising alternative to autogenous and/or biomaterial-based bone grafting. The objective of this systematic review was to answer the focused question: in animal models, do cell-based BTE strategies enhance bone regeneration and/or implant osseointegration in experimental peri-implant defects, compared with grafting with autogenous bone or only biomaterial scaffolds? Electronic databases were searched for controlled animal studies reporting on peri-implant defects and implantation of mesenchymal stem cells (MSC) or other cells seeded on biomaterial scaffolds, following Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. Random effects meta-analyses were performed for the outcomes histomorphometric bone area fraction (BA) and bone-to-implant contact (BIC). Nineteen studies reporting on large animal models (dogs and sheep) were included. Experimental defects were created surgically (16 studies) or via ligature-induced peri-implantitis (LIPI, three studies). In general, studies presented with an unclear to high risk of bias. In most studies, MSC were used in combination with alloplastic mineral phase or polymer scaffolds; no study directly compared cell-loaded scaffolds vs. autogenous bone. In three studies, cells were also modified by ex vivo gene transfer of osteoinductive factors. The meta-analyses indicated statistically significant benefits in favour of: (a) cell-loaded vs. cell-free scaffolds [weighted mean differences (WMD) of 10.73-12.30% BA and 11.77-15.15% BIC] in canine surgical defect and LIPI models; and (b) gene-modified vs. unmodified cells (WMD of 29.44% BA and 16.50% BIC) in canine LIPI models. Overall, heterogeneity in the meta-analyses was high (I2 70-88%); considerable variation was observed among studies regarding the nature of cells and scaffolds used. In summary, bone regeneration and osseointegration in peri-implant defects are enhanced by the addition of osteogenic cells to biomaterial scaffolds. Although the direction of treatment outcome is clearly in favour of BTE strategies, due to the limited magnitude of treatment effect observed, no conclusive statements regarding the clinical benefit of such procedures for oral indications can yet be made. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Siddharth Shanbhag
- Department of Clinical Dentistry, Centre for Clinical Dental Research, University of Bergen, Norway.,Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Nikolaos Pandis
- Department of Orthodontics and Dentofacial Orthopedics, University of Bern, Bern, Switzerland
| | - Kamal Mustafa
- Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Jens R Nyengaard
- Stereology and Electron Microscopy Laboratory, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Andreas Stavropoulos
- Department of Clinical Dentistry, Centre for Clinical Dental Research, University of Bergen, Norway
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Thoma DS, Lim HC, Sapata VM, Yoon SR, Jung RE, Jung UW. Recombinant bone morphogenetic protein-2 and platelet-derived growth factor-BB for localized bone regeneration. Histologic and radiographic outcomes of a rabbit study. Clin Oral Implants Res 2017; 28:e236-e243. [DOI: 10.1111/clr.13002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel S. Thoma
- Clinic for Fixed and Removable Prosthodontics and Dental Material Science; University of Zurich; Zurich Switzerland
| | - Hyun-Chang Lim
- Department of Periodontology; School of Dentistry; Kyung Hee University; Seoul Korea
| | - Vitor M. Sapata
- Clinic for Fixed and Removable Prosthodontics and Dental Material Science; University of Zurich; Zurich Switzerland
| | - Sora R. Yoon
- Department of Periodontology; Yonsei University; College of Dentistry; Seoul Korea
| | - Ronald E. Jung
- Clinic for Fixed and Removable Prosthodontics and Dental Material Science; University of Zurich; Zurich Switzerland
| | - Ui-Won Jung
- Department of Periodontology; Yonsei University; College of Dentistry; Seoul Korea
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Venkatesan J, Anil S, Kim SK, Shim MS. Chitosan as a vehicle for growth factor delivery: Various preparations and their applications in bone tissue regeneration. Int J Biol Macromol 2017; 104:1383-1397. [PMID: 28109812 DOI: 10.1016/j.ijbiomac.2017.01.072] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 01/05/2017] [Accepted: 01/15/2017] [Indexed: 02/04/2023]
Abstract
The replacement of conventional autografts and allografts by bone fragments constructed from alternate materials, cells, and molecules (growth factors, drugs, etc.) is an exciting prospect in the field of bone tissue engineering. Bone morphogenetic protein-2 (BMP-2) is a growth factor that has been extensively studied from this point of view. This review analyzes the relevance of chitosan and its derivatives and composites with various materials such as ceramics, heparin, silica, stem cells, titanium implants, etc., in terms of delivering BMP-2 for the purpose of bone regeneration. Chitosan offers the versatility to be modified into any shapes or sizes including conversion to nanoparticles, microspheres, nanofibers, porous scaffolds, and films. The results presented in this review clearly demonstrate that chitosan-based materials are biocompatible and have the potential to systematically and sustainably release BMP-2 where required. This release results in enhanced cell proliferation levels, enhancement of alkaline phosphatase activity, increased differentiation as well as increased mineralization under in vitro and in vivo conditions. This review also shines a spotlight on the currently developed chitosan-based products that are being used for BMP-2 delivery.
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Affiliation(s)
| | - Sukumaran Anil
- Department of Preventive Dental Sciences, College of Dentistry, Prince Sattam Bin Abdulaziz University, 153, AIkharj, 11942, Riyadh, Saudi Arabia
| | - Se-Kwon Kim
- Institute for Life Science of Seogo (ILSS), Kolmar Korea Co, Seoul 137-876, Republic of Korea.
| | - Min Suk Shim
- Division of Bioengineering, Incheon National University, Incheon 406-772, Republic of Korea.
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Luiz de Oliveira da Rosa W, Machado da Silva T, Fernando Demarco F, Piva E, Fernandes da Silva A. Could the application of bioactive molecules improve vital pulp therapy success? A systematic review. J Biomed Mater Res A 2017; 105:941-956. [PMID: 27998031 DOI: 10.1002/jbm.a.35968] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 12/01/2016] [Indexed: 12/26/2022]
Abstract
This study aimed to systematically review the literature of animal studies to evaluate whether bioactive dentin proteins could improve vital pulp therapy success. The review is reported in accordance with the PRISMA Statement. Two reviewers independently conducted a literature search of seven databases: PubMed (Medline), Lilacs, IBECS, BBO, Web of Science, Scopus, and SciELO. Animal experiments in which bioactive dentin proteins were applied directly or indirectly to the pulp tissue were included. Data regarding the characteristics of the proteins evaluated, the delivery systems used and the main findings from each study were tabulated to assess the outcomes of interest (tertiary dentin formation, inflammatory response, intratubular mineralization). After screening, 32 papers were subjected to qualitative analysis. In 75% of the studies, direct pulp capping was performed. Additionally, the most studied proteins were BMP-7, TGF-β1, and extracted soluble dentin matrix proteins. In conclusion, there is evidence in the literature suggesting that bioactive dentin molecules could enhance tertiary dentin formation with fewer initial inflammatory responses in direct and indirect pulp therapy in animal models. There are potential areas to be explored for novel therapeutic approaches for dental tissue repair and regeneration with bioactive materials. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 941-956, 2017.
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Affiliation(s)
| | - Tiago Machado da Silva
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - Flávio Fernando Demarco
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - Evandro Piva
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - Adriana Fernandes da Silva
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
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Bastami F, Paknejad Z, Jafari M, Salehi M, Rezai Rad M, Khojasteh A. Fabrication of a three-dimensional β-tricalcium-phosphate/gelatin containing chitosan-based nanoparticles for sustained release of bone morphogenetic protein-2: Implication for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 72:481-491. [PMID: 28024612 DOI: 10.1016/j.msec.2016.10.084] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 10/04/2016] [Accepted: 10/25/2016] [Indexed: 01/15/2023]
Abstract
Fabrication of an ideal scaffold having proper composition, physical structure and able to have sustained release of growth factors still is challenging for bone tissue engineering. Current study aimed to design an appropriate three-dimensional (3-D) scaffold with suitable physical characteristics, including proper compressive strength, degradation rate, porosity, and able to sustained release of bone morphogenetic protein-2 (BMP2), for bone tissue engineering. A highly porous 3-D β-tricalcium phosphate (β-TCP) scaffolds, inside of which two perpendicular canals were created, was fabricated using foam-casting technique. Then, scaffolds were coated with gelatin layer. Next, BMP2-loaded chitosan (CS) nanoparticles were dispersed into collagen hydrogel and filled into the scaffold canals. Physical characteristics of fabricated constructs were evaluated. Moreover, the capability of given construct for bone regeneration has been evaluated in vitro in interaction with human buccal fat pad-derived stem cells (hBFPSCs). The results showed that gelatin-coated TCP scaffold with rhBMP2 delivery system not only could act as a mechanically and biologically compatible framework, but also act as an osteoinductive graft by sustained delivering of rhBMP2 in a therapeutic window for differentiation of hBFPSCs towards the osteoblast lineage. The proposed scaffold model can be suggested for delivering of cells and other growth factors such as vascular endothelial growth factor (VEGF), alone or in combination, for future investigations.
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Affiliation(s)
- Farshid Bastami
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahrasadat Paknejad
- School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maissa Jafari
- School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Salehi
- Department of Tissue Engineering and Cell Therapy, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Rezai Rad
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arash Khojasteh
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Fujioka-Kobayashi M, Schaller B, Saulacic N, Zhang Y, Miron RJ. Growth factor delivery of BMP9 using a novel natural bovine bone graft with integrated atelo-collagen type I: Biosynthesis, characterization, and cell behavior. J Biomed Mater Res A 2016; 105:408-418. [DOI: 10.1002/jbm.a.35921] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 09/28/2016] [Accepted: 09/29/2016] [Indexed: 01/03/2023]
Affiliation(s)
- Masako Fujioka-Kobayashi
- Department of Periodontology, College of Dental Medicine; Nova Southeastern University; Fort Lauderdale Florida
- Department of Cranio-Maxillofacial Surgery; Bern University Hospital; Inselspital Switzerland
- Department of Oral Surgery; Institute of Biomedical Sciences, Tokushima University Graduate School; Tokushima Japan
| | - Benoit Schaller
- Department of Cranio-Maxillofacial Surgery; Bern University Hospital; Inselspital Switzerland
| | - Nikola Saulacic
- Department of Cranio-Maxillofacial Surgery; Bern University Hospital; Inselspital Switzerland
| | - Yufeng Zhang
- Department of Oral Implantology; University of Wuhan; China
| | - Richard J. Miron
- Department of Periodontology, College of Dental Medicine; Nova Southeastern University; Fort Lauderdale Florida
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Thoma DS, Cha JK, Sapata VM, Jung RE, Hüsler J, Jung UW. Localized bone regeneration around dental implants using recombinant bone morphogenetic protein-2 and platelet-derived growth factor-BB in the canine. Clin Oral Implants Res 2016; 28:1334-1341. [PMID: 27726186 DOI: 10.1111/clr.12989] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2016] [Indexed: 01/30/2023]
Abstract
OBJECTIVES To test whether or not one of two biological mediators (recombinant human bone morphogenetic protein-2 (rhBMP-2) and recombinant human platelet-derived growth factor (rhPDGF-BB)) is superior to the other and compared with control groups for bone regeneration around implants based on histomorphometrical outcome measures. MATERIALS AND METHODS Box-type defects (10 × 5 × 5 mm) were prepared on the buccal sides of the left and right edentulous ridge in ten mongrel dogs. Implants were placed at each site, the defects either received (i) bovine-derived particulated bone mineral (DBBM) mixed with rhBMP-2 and a collagen membrane (CM) (DBBM/BMP-2), (ii) DBBM mixed with rhPDGF-BB and CM (DBBM/PDGF), (iii) DBBM and CM (DBBM) and (iv) empty control (control). Animals were euthanized post-surgery at 8 weeks and 16 weeks. Histomorphometrical analyses were performed. RESULTS The mean percentages of regenerated area within total defect area amounted to 56.95% for DBBM/BMP-2, 48.86% for DBBM/PDFG, 33.44% for DBBM and 1.59% for control at 8 weeks, and 26.79% for DBBM/BMP-2, 23.78% for DBBM/PDFG, 30.21% for DBBM and 5.07% for control at 16 weeks with no statistically significant differences between the groups (P > 0.05). The mean amount of regenerated bone was 26.97% for DBBM/BMP-2, 22.02% for DBBM/PDFG, 5.03% for DBBM and 1.25% for control at 8 weeks, and at 16 weeks, these values were lower in the two groups with biological mediators (DBBM/BMP-2 = 13.35%; DBBM/PDGF = 6.96%) and only slightly increased in group DBBM (10.68%) and the control group (4.95%) compared with 8 weeks. The first bone-to-implant contact values on the buccal side were minimal for DBBM/BMP-2 (0.57 mm) and maximal for control (3.72 mm) at 8 weeks. CONCLUSIONS The use of biological mediators (rhBMP-2 and rhPDGF-BB) can increase the amount of bone regeneration at dehiscence-type defects compared with controls at 8 weeks, but not at 16 weeks due to enhanced hard tissue remodeling processes.
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Affiliation(s)
- Daniel S Thoma
- Clinic for Fixed and Removable Prosthodontics and Dental Material Science, University of Zurich, Zurich, Switzerland
| | - Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Vitor M Sapata
- Clinic for Fixed and Removable Prosthodontics and Dental Material Science, University of Zurich, Zurich, Switzerland
| | - Ronald E Jung
- Clinic for Fixed and Removable Prosthodontics and Dental Material Science, University of Zurich, Zurich, Switzerland
| | - Juerg Hüsler
- Clinic for Fixed and Removable Prosthodontics and Dental Material Science, University of Zurich, Zurich, Switzerland
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
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Khojasteh A, Nazeman P, Rad MR. Dental Stem Cells in Oral, Maxillofacial and Craniofacial Regeneration. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/978-3-319-28947-2_8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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45
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Rezia Rad M, Khojaste M, Hasan Shahriari M, Asgary S, Khojasteh A. Purmorphamine increased adhesion, proliferation and expression of osteoblast phenotype markers of human dental pulp stem cells cultured on beta-tricalcium phosphate. Biomed Pharmacother 2016; 82:432-8. [PMID: 27470382 DOI: 10.1016/j.biopha.2016.05.016] [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] [Received: 02/20/2016] [Revised: 05/11/2016] [Accepted: 05/11/2016] [Indexed: 01/27/2023] Open
Abstract
OBJECTIVES Growth factors play a significant role in cell proliferation and differentiation during different stages of the bone repair. However, several limitations have been brought researchers attention to an osteoinductive small molecule including Purmorphamine. In this study, we aimed to evaluate the effect of Purmorphamine on adhesion, proliferation and differentiation of human dental pulp stem cells (hDPSCs) seaded on beta-tricalcium phosphate (β-TCP) granules. METHODS hDPSCs were established from extracted wisdom teeth of healthy volenteers. Cells at passage 3 were seeded on β-TCP in the presence or absence of Purmorphamine. Cell adhesion and proliferation were assessed using scanning electeron microscopy (SEM) and DNA counting assay, respectively, after 1, 3 and 5days. Then, hDPSCs seeded on β-TCP were subjected to osteogenic medium with or without Purmorphamine. After 7 and 14days osteogenic diffrentiation capability of hDPSCs were determined using real-time RT-PCR and alkaline phosphatase (ALP) activity assay. RESULTS The significant increase in amount of DNA was observed at day 3 and 5 in the presence of Purmorphamine. SEM imaging also was confirmed the DNA counting assay; in all given time points, hDPSC attachment and growth was significantly higher in the presence of Purmorphamine. ALP activity was increased by Purmorphamine at both 7 and 14days of induction. Purmorphamine showed to effect on osteopontin expression at earlier stage of osteogenic differentiation, whereas for osteocalcin expression, this effect was more evident at later stage of differentiation. CONCLUSION Purmorphamine had a promotive effect on adhesion, proliferation and osteogenic differentiation of hDPSCs cultured on β-TCP. The outcome of the current study would help in development of in vitro culture conditions for better osteogenic differentiation of hDPSCs prior to transplantation.
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Affiliation(s)
- Maryam Rezia Rad
- Research Institute of Dental Sciences, Dental Research Center, Dental School, Shahid Beheshti University of Medical Sciences, Tehran 19839, Iran.
| | - Moein Khojaste
- Research Institute of Dental Sciences, Dental Research Center, Dental School, Shahid Beheshti University of Medical Sciences, Tehran 19839, Iran.
| | - Mehrnoosh Hasan Shahriari
- Research Institute of Dental Sciences, Dental Research Center, Dental School, Shahid Beheshti University of Medical Sciences, Tehran 19839, Iran.
| | - Saeed Asgary
- Iranian Center of Endodontic Research, Dental Research Center, Dental School, Shahid Beheshti University of Medical Sciences, Tehran 19839, Iran; Department of Endodontics, Dental School, Shahid Beheshti University of Medical Sciences, Tehran 19839, Iran.
| | - Arash Khojasteh
- Research Institute of Dental Sciences, Dental Research Center, Dental School, Shahid Beheshti University of Medical Sciences, Tehran 19839, Iran; Department of Oral and Maxillofacial Surgery, Dental School, Shahid Beheshti University of Medical Sciences, Tehran 19839, Iran; School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran 19839, Iran.
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Khojasteh A, Sadeghi N. Application of buccal fat pad-derived stem cells in combination with autogenous iliac bone graft in the treatment of maxillomandibular atrophy: a preliminary human study. Int J Oral Maxillofac Surg 2016; 45:864-71. [PMID: 26846793 DOI: 10.1016/j.ijom.2016.01.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 10/19/2015] [Accepted: 01/07/2016] [Indexed: 01/15/2023]
Abstract
Stem cell therapy for the treatment of bone defects is an alternative or adjunct to autologous bone grafting. This study assessed the efficacy of buccal fat pad-derived stem cells (BFPSCs) with iliac bone block grafting for the treatment of extensive human alveolar ridge defects. Eight patients with extensive jaw atrophy were selected for this study. The jaws were reconstructed with non-vascularized anterior iliac crest bone blocks. Gaps between the blocks were filled with freeze-dried bone granules and covered with a collagen membrane. In the test group (n=4), these granules were seeded with BFPSCs. Cone beam computed tomography scans were used to assess the amount of new bone formed at six sites in each patient. Trephine biopsies of 2-mm were also taken from the graft site during implant placement for histomorphometric analysis. The mean bone width change at the graft site was greater in the test group than in the control group (3.94±1.62mm vs. 3.01±0.89mm). New bone formation was 65.32% in the test group versus 49.21% in the control group. The application of BFPSCs in conjunction with iliac bone block grafts may increase the amount of new bone formation and decrease secondary bone resorption in extensively atrophic jaws.
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Affiliation(s)
- A Khojasteh
- Dental Research Centre, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; School of Medicine, University of Antwerp, Antwerp, Belgium.
| | - N Sadeghi
- Dental Research Centre, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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47
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Li D, Deng L, Yang Z, Xie X, Kang P, Tan Z. Antigen-free bovine cancellous bone loaded with recombinant human bone morphogenetic protein-2 for the repair of tibial bone defects in goat model. J Biomater Appl 2016; 30:1322-33. [PMID: 26801475 DOI: 10.1177/0885328215627796] [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: 02/05/2023]
Abstract
Antigen-free bovine cancellous bone has good performances of porous network structures and mechanics with antigen extracted. To develop a bioactive scaffold for enhancing bone repair and evaluate its biological property, rhBMP-2 loaded with antigen-free bovine cancellous bone was used to treat tibial bone defect. Twenty-four healthy adult goats were chosen to establish goat defects model and randomly divided into four groups. The goats were treated with rhBMP-2/antigen-free bovine cancellous bone scaffolds (group A), autogenous cancellous bone graft (group B), porous tricalciumphosphate scaffolds (group C) and nothing (group D). Animals were evaluated with radiological and histological methods at 4, 8 and 12 weeks after surgery. The gray value of radiographs was used to evaluate the healing of the defects, which revealed that the group A had a better outcome of defect healing compared with group C at 4, 8 and 12 weeks, respectively (p < 0.05), while the difference between groups A and B was without significance at each time (p > 0.05). The newly formed bone area was calculated from histological sections, and the results indicated that the amount of new bone in group A increased significantly compared with that in group C (p < 0.05) but was similar to that in group B (p > 0.05) at 4, 8 and 12 weeks, respectively. In addition, the expression of collagen I and vascular endothelial growth factor by real-time polymerase chain reaction at 12 weeks in group A was significantly higher than that in group C (p = 0.034, p = 0.032, respectively), but no significant differences were found when compared with that in group B (p = 0.36, p = 0.54, respectively). At the same time, group C presented better results than group D on bone defects healing. Therefore, the composites of antigen-free bovine cancellous bone loaded with rhBMP-2 have a good osteoinductive activity and capacity to promote the repair of bone defects.
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Affiliation(s)
- Donghai Li
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Liqing Deng
- Department of Orthopaedics of Cheng Ban hospital, the Branch of West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Zhouyuan Yang
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Xiaowei Xie
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Pengde Kang
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Zhen Tan
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
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48
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Gohil SV, Kuo C, Adams DJ, Maye P, Rowe DW, Nair LS. Evaluation of the donor cell contribution in rh
BMP
‐2 mediated bone formation with chitosan thermogels using fluorescent protein reporter mice. J Biomed Mater Res A 2016; 104:928-41. [DOI: 10.1002/jbm.a.35634] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 11/18/2015] [Accepted: 12/18/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Shalini V. Gohil
- Department of Orthopaedic SurgeryUConn HealthFarmington Connecticut06030
- Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering SciencesUConn HealthFarmington Connecticut06030
| | - Chia‐Ling Kuo
- Connecticut Institute for Clinical and Translational Science, Institute for Systems Genomics, University of ConnecticutFarmington Connecticut06030
| | - Douglas J. Adams
- Department of Orthopaedic SurgeryUConn HealthFarmington Connecticut06030
| | - Peter Maye
- Center for Regenerative Medicine and Skeletal Development, Department of Reconstructive Sciences, School of Dental MedicineUConn HealthFarmington Connecticut06030
| | - David W. Rowe
- Center for Regenerative Medicine and Skeletal Development, Department of Reconstructive Sciences, School of Dental MedicineUConn HealthFarmington Connecticut06030
| | - Lakshmi S. Nair
- Department of Orthopaedic SurgeryUConn HealthFarmington Connecticut06030
- Institute for Regenerative Engineering, The Raymond Beverly Sackler Center for Biomedical, Biological, Physical and Engineering SciencesUConn HealthFarmington Connecticut06030
- Departments of Material Science and Engineering, Biomedical Engineering and Institute of Material ScienceUniversity of ConnecticutStorrs Connecticut06269
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Jafari M, Paknejad Z, Rad MR, Motamedian SR, Eghbal MJ, Nadjmi N, Khojasteh A. Polymeric scaffolds in tissue engineering: a literature review. J Biomed Mater Res B Appl Biomater 2015; 105:431-459. [PMID: 26496456 DOI: 10.1002/jbm.b.33547] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 09/06/2015] [Accepted: 09/27/2015] [Indexed: 12/16/2022]
Abstract
The tissue engineering scaffold acts as an extracellular matrix that interacts to the cells prior to forming new tissues. The chemical and structural characteristics of scaffolds are major concerns in fabricating of ideal three-dimensional structure for tissue engineering applications. The polymer scaffolds used for tissue engineering should possess proper architecture and mechanical properties in addition to supporting cell adhesion, proliferation, and differentiation. Much research has been done on the topic of polymeric scaffold properties such as surface topographic features (roughness and hydrophilicity) and scaffold microstructures (pore size, porosity, pore interconnectivity, and pore and fiber architectures) that influence the cell-scaffold interactions. In this review, efforts were given to evaluate the effect of both chemical and structural characteristics of scaffolds on cell behaviors such as adhesion, proliferation, migration, and differentiation. This review would provide the fundamental information which would be beneficial for scaffold design in future. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 431-459, 2017.
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Affiliation(s)
- Maissa Jafari
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahrasadat Paknejad
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Rezai Rad
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Oral and Maxillofacial Surgery, University of Antwerp, Belgium, Antwerp, Belgium
| | - Saeed Reza Motamedian
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Jafar Eghbal
- Iranian Center for Endodontic Research, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nasser Nadjmi
- Department of Oral and Maxillofacial Surgery, University of Antwerp, Belgium, Antwerp, Belgium
| | - Arash Khojasteh
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Subbiah R, Hwang MP, Van SY, Do SH, Park H, Lee K, Kim SH, Yun K, Park K. Osteogenic/angiogenic dual growth factor delivery microcapsules for regeneration of vascularized bone tissue. Adv Healthc Mater 2015; 4:1982-92. [PMID: 26138344 DOI: 10.1002/adhm.201500341] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 06/04/2015] [Indexed: 01/08/2023]
Abstract
Growth factors (GFs) are major biochemical cues for tissue regeneration. Herein, a novel dual GF delivery system is designed composed of poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) and alginate microcapsules (MCs) via an electrodropping method. While bone morphogenetic protein (BMP)-2 is encapsulated in the PLGA NPs, vascular endothelial growth factor (VEGF) is included in the alginate MCs, where BMP-2-loaded PLGA NPs are entrapped together in the fabrication process. The initial loading efficiencies of BMP-2 and VEGF are 78% ± 3.6% and 43% ± 1.7%, respectively. When our dual GF-loaded MCs are assessed for in vitro osteogenesis of umbilical cord blood-derived mesenchymal stem cells (UCB-MSCs) on 2D and 3D environment, MCs contribute to much better UCB-MSCs osteogenesis as confirmed by von Kossa staining, immunofluorescence (osteocalcin, collagen 1), calcium content measurement, and osteogenic markers expression. In addition, when dual GF-encapsulated MCs are combined with collagen and then applied to 8 mm diameter rat calvarial defect model, the positive effects on vascularized bone regeneration are much more pronounced; micro computed tomography (CT) and histology analyses exhibit 82.3% bone healing coupled with 12.6% vessel occupied area. Put together, current study indicates a synergistic effect of BMP-2/VEGF and highlights the great potential of dual GF delivery modality (PLGA NPs-in-MC) for regeneration of vascularized bone.
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Affiliation(s)
- Ramesh Subbiah
- Center for Biomaterials; Korea Institute of Science and Technology (KIST); Seoul 136-791 South Korea
- Department of Biomedical Engineering; Korea University of Science and Technology (UST); Daejon 305-333 South Korea
| | - Mintai Peter Hwang
- Center for Biomaterials; Korea Institute of Science and Technology (KIST); Seoul 136-791 South Korea
| | - Se Young Van
- Center for Biomaterials; Korea Institute of Science and Technology (KIST); Seoul 136-791 South Korea
- Department of Biomedical Engineering; Korea University of Science and Technology (UST); Daejon 305-333 South Korea
| | - Sun Hee Do
- Department of Veterinary Clinical Pathology; Konkuk University; Seoul 143-701 South Korea
| | - Hansoo Park
- School of Integrative Engineering; Chung-Ang University; Seoul 156-756 South Korea
| | - Kangwon Lee
- Center for Biomaterials; Korea Institute of Science and Technology (KIST); Seoul 136-791 South Korea
- Department of Biomedical Engineering; Korea University of Science and Technology (UST); Daejon 305-333 South Korea
| | - Sang Heon Kim
- Center for Biomaterials; Korea Institute of Science and Technology (KIST); Seoul 136-791 South Korea
- Department of Biomedical Engineering; Korea University of Science and Technology (UST); Daejon 305-333 South Korea
| | - Kyusik Yun
- College of Bionanotechnology; Gachon University; Seongnam 461-701 South Korea
| | - Kwideok Park
- Center for Biomaterials; Korea Institute of Science and Technology (KIST); Seoul 136-791 South Korea
- Department of Biomedical Engineering; Korea University of Science and Technology (UST); Daejon 305-333 South Korea
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