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Muñoz F, Haidar ZS, Puigdollers A, Guerra I, Padilla MC, Ortega N, García MJ. A novel Chilean salmon fish backbone-based nanoHydroxyApatite functional biomaterial for potential use in bone tissue engineering. Front Med (Lausanne) 2024; 11:1330482. [PMID: 38774396 PMCID: PMC11106468 DOI: 10.3389/fmed.2024.1330482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 04/08/2024] [Indexed: 05/24/2024] Open
Abstract
Introduction Given the ensuing increase in bone and periodontal diseases and defects, de novo bone repair and/or regeneration strategies are constantly undergoing-development alongside advances in orthopedic, oro-dental and cranio-maxillo-facial technologies and improvements in bio-/nano-materials. Indeed, there is a remarkably growing need for new oro-dental functional biomaterials that can help recreate soft and hard tissues and restore function and aesthetics of teeth/ dentition and surrounding tissues. In bone tissue engineering, HydroxyApatite minerals (HAp), the most stable CaP/Calcium Phosphate bioceramic and a widely-used material as a bone graft substitute, have been extensively studied for regenerative medicine and dentistry applications, including clinical use. Yet, limitations and challenges owing principally to its bio-mechanical strength, exist and therefore, research and innovation efforts continue to pursue enhancing its bio-effects, particularly at the nano-scale. Methods Herein, we report on the physico-chemical properties of a novel nanoHydroxyApatite material obtained from the backbone of Salmon fish (patent-pending); an abundant and promising yet under-explored alternative HAp source. Briefly, our nanoS-HAp obtained via a modified and innovative alkaline hydrolysis-calcination process was characterized by X-ray diffraction, electron microscopy, spectroscopy, and a cell viability assay. Results and Discussion When compared to control HAp (synthetic, human, bovine or porcine), our nanoS-HAp demonstrated attractive characteristics, a promising biomaterial candidate for use in bone tissue engineering, and beyond.
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Affiliation(s)
- F. Muñoz
- Facultad de Odontología, Universidad Internacional de Cataluña, Barcelona, Spain
- Laboratorio BioMAT’X R&D&I (HAiDAR I+D+i LAB), Universidad de los Andes, Santiago, Chile
| | - Z. S. Haidar
- Laboratorio BioMAT’X R&D&I (HAiDAR I+D+i LAB), Universidad de los Andes, Santiago, Chile
- Centro de Investigación e Innovación Biomédica (CiiB), Universidad de los Andes, Santiago, Chile
- Programa de Doctorado en BioMedicina, Facultad de Medicina, Universidad de los Andes, Santiago, Chile
- Programa de Doctorado en Ciencias Odontológicas, Facultad de Odontología, Universidad de los Andes, Santiago, Chile
- Facultad de Odontología, Universidad de los Andes, Santiago, Chile
| | - A. Puigdollers
- Área de Ortodoncia, Facultat Internacional de Catalunya, Barcelona, Spain
| | - I. Guerra
- Facultad de Odontología, Universidad Internacional de Cataluña, Barcelona, Spain
| | - M. Cristina Padilla
- Centro de Investigación e Innovación Biomédica (CiiB), Universidad de los Andes, Santiago, Chile
- Programa de Doctorado en BioMedicina, Facultad de Medicina, Universidad de los Andes, Santiago, Chile
- Laboratorio de Investigación e Ingeniería de Biopolímeros (BiopREL), Universidad de los Andes, Santiago, Chile
- Escuela de Nutrición y Dietética, Facultad de Medicina, Universidad de los Andes, Santiago, Chile
| | - N. Ortega
- Laboratorio de Investigación e Ingeniería de Biopolímeros (BiopREL), Universidad de los Andes, Santiago, Chile
| | - M. J. García
- Facultad de Odontología, Universidad Internacional de Cataluña, Barcelona, Spain
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Nam JW. Efficacy of hydroxyapatite and fibrin sealant as carriers for bone morphogenetic protein-2 in maxillary sinus floor augmentation: a retrospective study. Int J Oral Maxillofac Surg 2024:S0901-5027(24)00099-7. [PMID: 38653626 DOI: 10.1016/j.ijom.2024.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 04/11/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
The aim of this retrospective study was to assess the efficacy of recombinant human bone morphogenetic protein-2 (rhBMP-2) with hydroxyapatite (HA) granules and fibrin sealant (FS) in maxillary sinus floor augmentation (MSFA), with a focus on the volume change. Fifty-two of 137 patients who underwent MSFA with rhBMP-2/HA grafting between June 2016 and December 2022 met the study inclusion criteria; 25 had received rhBMP-2/HA without FS and 27 had received rhBMP-2/HA with FS. Computed tomography (CT) images were obtained preoperatively, immediately following the operation, and at 6 months postoperative. These images were three-dimensionally reconstructed to measure the volumetric and height changes following MSFA. The mean ± standard deviation percentage of volumetric change at 6 months was 48.75 ± 37.44% in the group with FS and 29.77 ± 13.42% in the group without FS (P = 0.019). The vertical height measured at a specific site of the grafted area showed a mean percentage change at 6 months of 4.05 ± 12.08% in the group with FS and 6.07 ± 10.15% in the group without FS (P = 0.518). The additional use of FS as a carrier for rhBMP-2/HA in MSFA was found to improve surgical convenience and bone regeneration ability.
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Affiliation(s)
- J W Nam
- Department of Oral and Maxillofacial Surgery, Wonkwang University Sanbon Dental Hospital, Gunpo-si, Gyeonggi-do, Republic of Korea; Wonkwang Dental Research Institute, College of Dentistry, Wonkwang University, Iksan-si, Jeonbuk-do, Republic of Korea.
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Halder M, Singh A, Negi D, Singh Y. Investigating the Role of Amino Acids in Short Peptides for Hydroxyapatite Binding and Osteogenic Differentiation of Mesenchymal Stem Cells to Aid Bone Regeneration. Biomacromolecules 2024; 25:2286-2301. [PMID: 38502906 DOI: 10.1021/acs.biomac.3c01148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Bone defects show a slow rate of osteoconduction and imperfect reconstruction, and the current treatment strategies to treat bone defects suffer from limitations like immunogenicity, lack of cell adhesion, and the absence of osteogenic activity. In this context, bioactive supramolecular peptides and peptide gels offer unique opportunities to develop biomaterials that can play a dominant role in the biomineralization of bone tissues and promote bone formation. In this article, we have demonstrated the potential of six tetrapeptides for specific binding to hydroxyapatite (HAp), a major inorganic component of the bone, and their effect on the growth and osteogenic differentiation of mesenchymal stem cells (MSCs). We adopted a simplistic approach of rationally designing amphiphilic peptides by incorporating amino acids, Ser, pSer, Pro, Hyp, Asp, and Glu, which are present in either collagenous or noncollagenous proteins and render properties like antioxidant, calcification, and mineralization. A total of six tetrapeptides, Trp-Trp-His-Ser (WWHS), Trp-Trp-His-pSer (WWHJ), Trp-Trp-His-Pro (WWHP), Trp-Trp-His-Hyp (WWHO), Trp-Trp-His-Asp (WWHD), and Trp-Trp-His-Glu (WWHE), were synthesized. Four peptides were found to self-assemble into nanofibrillar gels resembling the extracellular matrix (ECM), and the remaining two peptides (WWHJ, WWHP) self-assembled into nanorods. The peptides showed excellent cell adhesion, encapsulation, proliferation, and migration and induced the differentiation of mesenchymal stem cells (MSCs), as evident from the enhanced mineralization, resulting from the upregulation of osteogenic markers, RUNX 2, COL I, OPN, and OCN, alkaline phosphatase (ALP) production, and calcium deposition. The peptides also induced the downregulation of inflammatory markers, TNF-α and iNOS, and the upregulation of the anti-inflammatory marker, IL-10, resulting in M2 macrophage polarization. RANKL and TRAP genes were downregulated in a coculture system of MC3T3-E1 and RAW 264.7 cells, implying that peptides promote osteogenesis and inhibit osteoclastogenesis. The peptide-based biomaterials developed in this work can enhance bone regeneration capacity and show strong potential as scaffolds for bone tissue engineering.
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Affiliation(s)
- Moumita Halder
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar 140001, Punjab, India
| | - Ananya Singh
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar 140001, Punjab, India
| | - Deepa Negi
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Rupnagar 140001, Punjab, India
| | - Yashveer Singh
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar 140001, Punjab, India
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Ivanjko N, Stokovic N, Milesevic M, Rumenovic V, Windhager R, Sampath KT, Kovacic N, Grcevic D, Vukicevic S. rhBMP6 in autologous blood coagulum is a preferred osteoinductive device to rhBMP2 on bovine collagen sponge in the rat ectopic bone formation assay. Biomed Pharmacother 2023; 169:115844. [PMID: 37948990 DOI: 10.1016/j.biopha.2023.115844] [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: 09/27/2023] [Revised: 11/02/2023] [Accepted: 11/05/2023] [Indexed: 11/12/2023] Open
Abstract
Osteoinductive BMPs require a suitable delivery system for treating various pathological conditions of the spine and segmental bone defects. INFUSE, the only commercially available BMP-based osteoinductive device, consisting of rhBMP2 on bovine absorbable collagen sponge (ACS) showed major disadvantages due to serious side effects. A novel osteoinductive device, OSTEOGROW, comprised of rhBMP6 dispersed within autologous blood coagulum (ABC) is a promising therapy for bone regeneration, subjected to several clinical trials for diaphysial bone repair and spinal fusion. In the present study, we have examined the release dynamics showing that the ABC carrier provided a slower, more steady BMP release in comparison to the ACS. Rat subcutaneous assay was employed to evaluate cellular events and the time course of ectopic osteogenesis. The host cellular response to osteoinductive implants was evaluated by flow cytometry, while dynamics of bone formation and maintenance in time were evaluated by histology, immunohistochemistry and micro CT analyses. Flow cytometry revealed that the recruitment of lymphoid cell populations was significantly higher in rhBMP6/ABC implants, while rhBMP2/ACS implants recruited more myeloid populations. Furthermore, rhBMP6/ABC implants more efficiently attracted early and committed progenitor cells. Dynamics of bone formation induced by rhBMP2/ACS was characterized by a delayed endochondral ossification process in comparison to rhBMP6/ABC implants. Besides, rhBMP6/ABC implants induced more ectopic bone volume in all observed time points in comparison to rhBMP2/ACS implants. These results indicate that OSTEOGROW was superior to INFUSE due to ABC's advantages as a carrier and rhBMP6 superior efficacy in inducing bone.
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Affiliation(s)
- Natalia Ivanjko
- Laboratory for Mineralized Tissues, School of Medicine, University of Zagreb, Zagreb, Croatia; Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Nikola Stokovic
- Laboratory for Mineralized Tissues, School of Medicine, University of Zagreb, Zagreb, Croatia; Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Marina Milesevic
- Laboratory for Mineralized Tissues, School of Medicine, University of Zagreb, Zagreb, Croatia; Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Viktorija Rumenovic
- Laboratory for Mineralized Tissues, School of Medicine, University of Zagreb, Zagreb, Croatia; Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Reinhard Windhager
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
| | | | - Natasa Kovacic
- Croatian Institute for Brain Research, Laboratory for Molecular Immunology, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Danka Grcevic
- Croatian Institute for Brain Research, Laboratory for Molecular Immunology, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Slobodan Vukicevic
- Laboratory for Mineralized Tissues, School of Medicine, University of Zagreb, Zagreb, Croatia; Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia.
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On SW, Park SY, Yi SM, Park IY, Byun SH, Yang BE. Current Status of Recombinant Human Bone Morphogenetic Protein-2 (rhBMP-2) in Maxillofacial Surgery: Should It Be Continued? Bioengineering (Basel) 2023; 10:1005. [PMID: 37760107 PMCID: PMC10525581 DOI: 10.3390/bioengineering10091005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
Recombinant human bone morphogenetic protein-2 (rhBMP-2) has shown potential in maxillofacial surgery owing to its osteoinductive properties. However, concerns about its safety and high cost have limited its widespread use. This review presents the status of rhBMP-2 use in maxillofacial surgery, focusing on its clinical application, efficacy, safety, and limitations. Studies have demonstrated rhBMP-2's potential to reduce donor site morbidity and increase bone height in sinus and ridge augmentation; however, it may not outperform autogenous bone grafts. In medication-related osteonecrosis of the jaw treatment, rhBMP-2 has been applied adjunctively with promising results, although its long-term safety requires further investigation. However, in maxillofacial trauma, its application is limited to the restoration of large defects. Safety concerns include postoperative edema and the theoretical risk of carcinogenesis. Although postoperative edema is manageable, the link between rhBMP-2 and cancer remains unclear. The limitations include the lack of an ideal carrier, the high cost of rhBMP-2, and the absence of an optimal dosing regimen. In conclusion, rhBMP-2 is a promising graft material for maxillofacial surgery. However, it has not yet become the gold standard owing to safety and cost concerns. Further research is required to establish long-term safety, optimize dosing, and develop better carriers.
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Affiliation(s)
- Sung-Woon On
- Division of Oral and Maxillofacial Surgery, Department of Dentistry, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong 18450, Republic of Korea;
- Department of Artificial Intelligence and Robotics in Dentistry, Graduated School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea; (S.-Y.P.); (S.-M.Y.); (I.-Y.P.); (S.-H.B.)
- Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
| | - Sang-Yoon Park
- Department of Artificial Intelligence and Robotics in Dentistry, Graduated School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea; (S.-Y.P.); (S.-M.Y.); (I.-Y.P.); (S.-H.B.)
- Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
- Department of Oral and Maxillofacial Surgery, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
- Dental Artificial Intelligence and Robotics R&D Center, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
| | - Sang-Min Yi
- Department of Artificial Intelligence and Robotics in Dentistry, Graduated School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea; (S.-Y.P.); (S.-M.Y.); (I.-Y.P.); (S.-H.B.)
- Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
- Department of Oral and Maxillofacial Surgery, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
- Dental Artificial Intelligence and Robotics R&D Center, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
| | - In-Young Park
- Department of Artificial Intelligence and Robotics in Dentistry, Graduated School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea; (S.-Y.P.); (S.-M.Y.); (I.-Y.P.); (S.-H.B.)
- Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
- Dental Artificial Intelligence and Robotics R&D Center, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
- Department of Orthodontics, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
| | - Soo-Hwan Byun
- Department of Artificial Intelligence and Robotics in Dentistry, Graduated School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea; (S.-Y.P.); (S.-M.Y.); (I.-Y.P.); (S.-H.B.)
- Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
- Department of Oral and Maxillofacial Surgery, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
- Dental Artificial Intelligence and Robotics R&D Center, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
| | - Byoung-Eun Yang
- Department of Artificial Intelligence and Robotics in Dentistry, Graduated School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea; (S.-Y.P.); (S.-M.Y.); (I.-Y.P.); (S.-H.B.)
- Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
- Department of Oral and Maxillofacial Surgery, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
- Dental Artificial Intelligence and Robotics R&D Center, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
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BMP-2 functional polypeptides relieve osteolysis via bi-regulating bone formation and resorption coupled with macrophage polarization. NPJ Regen Med 2023; 8:6. [PMID: 36759627 PMCID: PMC9911742 DOI: 10.1038/s41536-023-00279-2] [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: 06/01/2022] [Accepted: 01/25/2023] [Indexed: 02/11/2023] Open
Abstract
Osteolysis caused by wear debris around the prosthesis is the main reason for aseptic loosening. Extending prosthetic service life is still challenging. In this study, we first synthesized a bone morphogenetic protein-2 (BMP-2) functional polypeptide (BMP2pp), and evaluated the effects of BMP2pp on macrophage polarization and impaired osteogenesis caused by titanium (Ti) particles in vitro. Then, we delineated the impact of BMP2pp on bone formation and resorption in a mouse calvarial bone osteolysis model induced by Ti particles. The results showed that BMP2pp not only alleviated the Ti-induced inhibition of osteoblastic differentiation in human placenta-derived mesenchymal stem cells (hPMSCs) but also prevented Ti-induced M1 macrophage polarization and promoted M2 macrophage differentiation in mice. Conditioned medium from BMP2pp-activated macrophages increased the osteogenesis of hPMSCs. The western blot results indicated a significant decrease in the expression of NF-κB inducing kinase (NIK) and phospho-NF-κB p65 in bone marrow-derived macrophages treated with BMP2pp. Furthermore, we clarified the protective effect of BMP2pp on bone formation and the reduction in bone resorption coupled with the immunomodulatory properties of calvarial osteolysis in mice. In summary, BMP2pp ameliorated the Ti-mediated impairment in osteogenic potential of hPMSCs, suppressed the M1 polarization of macrophages by inhibiting the activation of the NF-κB signaling pathway, and ameliorated Ti-induced bone osteolysis. Our research suggests that BMP2pp may be a potential option for treating prosthetic loosening induced by wear debris from prostheses.
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Nikolova MP, Apostolova MD. Advances in Multifunctional Bioactive Coatings for Metallic Bone Implants. MATERIALS (BASEL, SWITZERLAND) 2022; 16:183. [PMID: 36614523 PMCID: PMC9821663 DOI: 10.3390/ma16010183] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
To fix the bone in orthopedics, it is almost always necessary to use implants. Metals provide the needed physical and mechanical properties for load-bearing applications. Although widely used as biomedical materials for the replacement of hard tissue, metallic implants still confront challenges, among which the foremost is their low biocompatibility. Some of them also suffer from excessive wear, low corrosion resistance, infections and shielding stress. To address these issues, various coatings have been applied to enhance their in vitro and in vivo performance. When merged with the beneficial properties of various bio-ceramic or polymer coatings remarkable bioactive, osteogenic, antibacterial, or biodegradable composite implants can be created. In this review, bioactive and high-performance coatings for metallic bone implants are systematically reviewed and their biocompatibility is discussed. Updates in coating materials and formulations for metallic implants, as well as their production routes, have been provided. The ways of improving the bioactive coating performance by incorporating bioactive moieties such as growth factors, osteogenic factors, immunomodulatory factors, antibiotics, or other drugs that are locally released in a controlled manner have also been addressed.
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Affiliation(s)
- Maria P. Nikolova
- Department of Material Science and Technology, University of Ruse “A. Kanchev”, 8 Studentska Str., 7017 Ruse, Bulgaria
| | - Margarita D. Apostolova
- Medical and Biological Research Lab., “Roumen Tsanev” Institute of Molecular Biology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Advances in bone regeneration with growth factors for spinal fusion: A literature review. NORTH AMERICAN SPINE SOCIETY JOURNAL 2022; 13:100193. [PMID: 36605107 PMCID: PMC9807829 DOI: 10.1016/j.xnsj.2022.100193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/13/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
Bone tissue is regenerated via the spatiotemporal involvement of various cytokines. Among them, the bone morphogenetic protein (BMP), which plays a vital role in the bone regeneration process, has been applied clinically for the treatment of refractory orthopedic conditions. Although BMP therapy using a collagen carrier has shown efficiency in bone regeneration over the last two decades, a major challenge-considerable side effects associated with the acute release of high doses of BMPs-has also been revealed. To improve BMP efficiency, the development of new carriers and biologics that can be used in conjunction with BMPs is currently underway. In this review, we describe the current status and future prospects of bone regeneration therapy, with a focus on BMPs. Furthermore, we outline the characteristics and molecular signaling pathways involving BMPs, clinical applications of BMPs in orthopedics, clinical results of BMP use in human spinal surgeries, drugs combined with BMPs to provide synergistic effects, and novel BMP carriers.
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Stokovic N, Ivanjko N, Rumenovic V, Breski A, Sampath KT, Peric M, Pecina M, Vukicevic S. Comparison of synthetic ceramic products formulated with autologous blood coagulum containing rhBMP6 for induction of bone formation. INTERNATIONAL ORTHOPAEDICS 2022; 46:2693-2704. [PMID: 35994064 DOI: 10.1007/s00264-022-05546-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
PURPOSE Osteogrow, an osteoinductive device containing recombinant human Bone Morphogenetic Protein 6 (rhBMP6) in autologous blood coagulum, is a novel therapeutic solution for bone regeneration. This study aimed to evaluate different commercially available calcium phosphate synthetic ceramic particles as a compression-resistant matrix (CRM) added to Osteogrow implants to enhance their biomechanical properties. METHODS Osteogrow implants with the addition of Vitoss, ChronOs, BAM, and Dongbo ceramics (Osteogrow-C, where C stands for ceramics) were evaluated in the rodent subcutaneous ectopic bone formation assay. Osteogrow-C device was prepared as follows: rhBMP6 was added to blood, and blood was mixed with ceramics and left to coagulate. Osteogrow-C was implanted subcutaneously in the axillary region of Sprague-Dawley rats and the outcome was analyzed 21 days following implantation using microCT, histology, morphometric analyses, and immunohistochemistry. RESULTS Osteogrow-C implants with all tested ceramic particles induced the formation of the bone-ceramic structure containing cortical bone, the bone between the particles, and bone at the ceramic surfaces. The amount of newly formed bone was significant in all experimental groups; however, the highest bone volume was measured in Osteogrow-C implants with highly porous Vitoss ceramics. The trabecular number was highest in Osteogrow-C implants with Vitoss and ChronOs ceramics while trabeculae were thicker in implants containing BAM and Dongbo ceramics. The immunological response and inflammation were comparable among ceramic particles evaluated in this study. CONCLUSION Osteogrow-C bone regenerative device was effective with a broad range of commercially available synthetic ceramics providing a promising therapeutic solution for the regeneration of long bone fracture nonunion, large segmental defects, and spinal fusion surgeries.
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Affiliation(s)
- Nikola Stokovic
- Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, School of Medicine, University of Zagreb, Zagreb, Croatia
- Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Natalia Ivanjko
- Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, School of Medicine, University of Zagreb, Zagreb, Croatia
- Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Viktorija Rumenovic
- Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, School of Medicine, University of Zagreb, Zagreb, Croatia
- Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Anita Breski
- Department of Pathology and Cytology, University Hospital Centre Zagreb, Zagreb, Croatia
| | | | - Mihaela Peric
- Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
- Department for Intracellular Communication, Center for Translational and Clinical Research, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Marko Pecina
- Department of Orthopaedic Surgery, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Slobodan Vukicevic
- Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, School of Medicine, University of Zagreb, Zagreb, Croatia.
- Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia.
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Han JJ, Moon JE, Lee EH, Yang HJ, Hwang SJ. Clinical and radiographic outcomes of dental implant after maxillary sinus floor augmentation with rhBMP-2/hydroxyapatite compared to deproteinized bovine bone. PLoS One 2022; 17:e0273399. [PMID: 36007001 PMCID: PMC9409565 DOI: 10.1371/journal.pone.0273399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 05/24/2022] [Indexed: 11/26/2022] Open
Abstract
Objectives This study aimed to evaluate the clinical and radiographic outcomes of early implant placement and functional loading in maxillary sinus floor augmentation (MSFA) using recombinant human bone morphogenetic protein 2/hydroxyapatite (rhBMP-2/HA) and to compare these outcomes with those of the conventional protocol in MSFA using deproteinized bovine bone (DBB). Materials and methods The rhBMP-2/HA and DBB groups consisted of 14 and 13 patients who underwent MSFA with BMP and DBB, respectively. After placement of 22 implants and 21 implants in the rhBMP-2/HA and DBB groups, respectively, abutment connections were performed 3 months after implant placement for the rhBMP-2/HA group and 6 months after implant placement for the DBB group. Changes in grafted sinus height (GSH), marginal bone loss (MBL), and implant stability were evaluated up to one year after functional loading. Results Survival rates for the rhBMP-2/HA and DBB groups after one year of functional loading were 90.9% and 90.5%, respectively. Both groups exhibited no significant time-course changes in GSH until one year of functional loading (rhBMP-2/HA, p = 0.124; DBB, p = 0.075). Although significant MBL occurred after one year of functional loading for both groups (rhBMP-2/HA, p < 0.001; DBB, p < 0.001), there were no significant differences in time-course changes in MBL between the two groups (p = 0.450). The mean implant stability quotient values in the rhBMP-2/HA and DBB groups were 75.3 and 75.4 after one year of functional loading, respectively, and there were no significant differences between the two groups (p = 0.557). Conclusions MSFA using rhBMP-2/HA allowed implant rehabilitation with early implant placement and functional loading and led to a comparable survival rate and implant stability after 1 year of functional loading with acceptable MBL and stable maintenance of GSH compared to the MSFA using DBB with 6 months of healing after implant placement.
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Affiliation(s)
- Jeong Joon Han
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, Republic of Korea
- Dental Research Institute, Seoul National University, Seoul, Republic of Korea
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul, Republic of Korea
| | - Ji Eun Moon
- Department of Prosthodontics, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Eun-Hyuk Lee
- Department of Prosthodontics, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Hoon Joo Yang
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, Republic of Korea
- Dental Research Institute, Seoul National University, Seoul, Republic of Korea
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul, Republic of Korea
- * E-mail:
| | - Soon Jung Hwang
- Dental Research Institute, Seoul National University, Seoul, Republic of Korea
- Hwang Soon Jung’s Dental Clinic for Oral and Maxillofacial Surgery, Seoul, Republic of Korea
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11
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Long-term posterolateral spinal fusion in rabbits induced by rhBMP6 applied in autologous blood coagulum with synthetic ceramics. Sci Rep 2022; 12:11649. [PMID: 35803983 PMCID: PMC9270325 DOI: 10.1038/s41598-022-14931-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 06/15/2022] [Indexed: 11/21/2022] Open
Abstract
Autologous bone graft substitute (ABGS) containing rhBMP6 in autologous blood coagulum (Osteogrow) is a novel therapeutic solution for bone regeneration. This study is aimed to investigate the long-term outcome of ABGS with synthetic ceramics (Osteogrow-C) in rabbit posterolateral spinal fusion (PLF) model. Osteogrow-C implants were implanted bilaterally between rabbit lumbar transverse processes. We compared the outcome following implantation of ABGS with ceramic particles of different chemical composition (TCP and biphasic ceramics containing both TCP and HA) and size (500–1700 µm and 74–420 µm). Outcome was analyzed after 14 and 27 weeks by microCT, histology, and biomechanical analyses. Successful bilateral spinal fusion was observed in all animals at the end of observation period. Chemical composition of ceramic particles has impact on the PLF outcome via resorption of TCP ceramics, while ceramics containing HA were only partially resorbed. Moreover, persistence of ceramic particles subsequently resulted with an increased bone volume in implants with small particles containing high proportion of HA. ABGS (rhBMP6/ABC) with various synthetic ceramic particles promoted spinal fusion in rabbits. This is the first presentation of BMP-mediated ectopic bone formation in rabbit PLF model with radiological, histological, and biomechanical features over a time course of up to 27 weeks.
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12
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Hayashi T, Asakura M, Kawase M, Matsubara M, Uematsu Y, Mieki A, Kawai T. Bone Tissue Engineering in Rat Calvarial Defects Using Induced Bone-like Tissue by rhBMPs from Immature Muscular Tissues In Vitro. Int J Mol Sci 2022; 23:ijms23136927. [PMID: 35805943 PMCID: PMC9266849 DOI: 10.3390/ijms23136927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/15/2022] [Accepted: 06/21/2022] [Indexed: 01/27/2023] Open
Abstract
This study aimed to induce bone-like tissue from immature muscular tissue (IMT) in vitro using commercially available recombinant human bone morphogenetic protein (rhBMP)-2, rhBMP-4, and rhBMP-7, and then implanting this tissue into a calvarial defect in rats to assess healing. IMTs were extracted from 20-day-old Sprague-Dawley (SD) fetal rats, placed on expanded polytetrafluoroethylene (ePTFE) with 10 ng/μL each of rhBMP-2, BMP-4, and BMP-7, and cultured for two weeks. The specimens were implanted into calvarial defects in 3-week-old SD rats for up to three weeks. Relatively strong radiopacity was observed on micro-CT two weeks after culture, and bone-like tissue, comprising osteoblastic cells and osteoids, was partially observed by H&E staining. Calcium, phosphorus, and oxygen were detected in the extracellular matrix using an electron probe micro analyzer, and X-ray diffraction patterns and Fourier transform infrared spectroscopy spectra of the specimen were found to have typical apatite crystal peaks and spectra, respectively. Furthermore, partial strong radiopacity and ossification were confirmed one week after implantation, and a dominant novel bone was observed after two weeks in the defect site. Thus, rhBMP-2, BMP-4, and BMP-7 differentiated IMT into bone-like tissue in vitro, and this induced bone-like tissue has ossification potential and promotes the healing of calvarial defects. Our results suggest that IMT is an effective tissue source for bone tissue engineering.
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Abstract
Purpose of Review Despite the continued growth of spine fusion procedures, the ideal material for bone regeneration remains unclear. Current bone graft substitutes and extenders in use such as exogenous BMP-2 or demineralized bone matrix and hydroxyapatite either have serious complications associated with use or lead to clinically significant rates of non-union. The introduction of nanotechnology and 3D printing to regenerative medicine facilitates the development of safer and more efficacious bone regenerative scaffolds that present solutions to these problems. Many researchers in orthopedics recognize the importance of lowering the dose of recombinant growth factors like BMP-2 to avoid the complications associated with its normal required supraphysiologic dosing to achieve high rates of fusion in spine surgery. Recent Findings Recent iterations of bioactive scaffolds have moved towards peptide amphiphiles that bind endogenous osteoinductive growth factor sources at the site of implantation. These molecules have been shown to provide a highly fluid, natural mimetic of natural extracellular matrix to achieve 100% fusion rates at 10–100 times lower doses of BMP-2 relative to controls in pre-clinical animal posterolateral fusion models. Alternative approaches to bone regeneration include the combination of existing natural growth factor sources like human bone combined with bioactive, biocompatible components like hydroxyapatite using 3D-printing technologies. Their elastomeric, 3D-printed scaffolds demonstrate an optimal safety profile and high rates of fusion (~92%) in the rat posterolateral fusion model. Summary Bioactive peptide amphiphiles and developments in 3D printing offer the promising future of a recombinant growth factor- free bone graft substitute with similar efficacy but improved safety profiles compared to existing bone graft substitutes.
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Kim SG. Multiple ways for the same destination: bone regeneration. Maxillofac Plast Reconstr Surg 2022; 44:9. [PMID: 35235091 PMCID: PMC8891406 DOI: 10.1186/s40902-022-00340-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 02/22/2022] [Indexed: 11/25/2022] Open
Abstract
The regeneration of the bone is a challenging topic for maxillofacial plastic and reconstructive surgeons. For successful bone regeneration, timely providing of essential components is prerequisite. They are cellular components (osteoblasts, osteoclasts, and immune cells), extracellular matrix, and inorganic components (calcium and phosphate). Any deficient component can be provided from outside as a graft. Accordingly, there are many ways for successful bone regeneration. Selection of appropriate methods in an individualized situation is important.
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Affiliation(s)
- Seong-Gon Kim
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, Gangneung, 25457, Republic of Korea.
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Proposal for a New Bioactive Kinetic Screw in an Implant, Using a Numerical Model. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12020779] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A new biomechanism, Bioactive Kinetic Screw (BKS) for screws and bone implants created by the first author, is presented using a bone dental implant screw, in which the bone particles, blood, cells, and protein molecules removed during bone drilling are used as a homogeneous autogenous transplant in the same implant site, aiming to obtain primary and secondary bone stability, simplifying the surgical procedure, and improving the healing process. The new BKS is based on complex geometry. In this work, we describe the growth factor (GF) delivery properties and the in situ optimization of the use of the GF in the fixation of bone screws through a dental implant. To describe the drilling process, an explicit dynamic numerical model was created, where the results show a significant impact of the drilling process on the bone material. The simulation demonstrates that the space occupied by the screw causes stress and deformation in the bone during the perforation and removal of the particulate bone, resulting in the accumulation of material removed within the implant screw, filling the limit hole of the drill grooves present on the new BKS.
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Rittipakorn P, Thuaksuban N, Mai-ngam K, Charoenla S. A comparative study of polycaprolactone–hydroxyapatite scaffold and collagen membrane carriers for recombinant human bone morphogenic protein-2 for guided bone regeneration. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2020.1798441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Pawornwan Rittipakorn
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai, Thailand
| | - Nuttawut Thuaksuban
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai, Thailand
| | - Katanchalee Mai-ngam
- National Metal and Materials Technology Center, National Science and Technology Development Agency, Ministry of Science, Technology and Environment, Khlong Luang, Thailand
| | - Satrawut Charoenla
- National Metal and Materials Technology Center, National Science and Technology Development Agency, Ministry of Science, Technology and Environment, Khlong Luang, Thailand
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Lu X, Wu Z, Xu K, Wang X, Wang S, Qiu H, Li X, Chen J. Multifunctional Coatings of Titanium Implants Toward Promoting Osseointegration and Preventing Infection: Recent Developments. Front Bioeng Biotechnol 2021; 9:783816. [PMID: 34950645 PMCID: PMC8691702 DOI: 10.3389/fbioe.2021.783816] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 10/25/2021] [Indexed: 01/27/2023] Open
Abstract
Titanium and its alloys are dominant material for orthopedic/dental implants due to their stable chemical properties and good biocompatibility. However, aseptic loosening and peri-implant infection remain problems that may lead to implant removal eventually. The ideal orthopedic implant should possess both osteogenic and antibacterial properties and do proper assistance to in situ inflammatory cells for anti-microbe and tissue repair. Recent advances in surface modification have provided various strategies to procure the harmonious relationship between implant and its microenvironment. In this review, we provide an overview of the latest strategies to endow titanium implants with bio-function and anti-infection properties. We state the methods they use to preparing these efficient surfaces and offer further insight into the interaction between these devices and the local biological environment. Finally, we discuss the unmet needs and current challenges in the development of ideal materials for bone implantation.
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Affiliation(s)
- Xiaoxuan Lu
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Zichen Wu
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Kehui Xu
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Xiaowei Wang
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Shuang Wang
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Hua Qiu
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Xiangyang Li
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
| | - Jialong Chen
- Key Laboratory of Oral Diseases Research of Anhui Province, Stomatologic Hospital and College, Anhui Medical University, Hefei, China
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Aghali A. Craniofacial Bone Tissue Engineering: Current Approaches and Potential Therapy. Cells 2021; 10:cells10112993. [PMID: 34831216 PMCID: PMC8616509 DOI: 10.3390/cells10112993] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/16/2021] [Accepted: 10/22/2021] [Indexed: 01/10/2023] Open
Abstract
Craniofacial bone defects can result from various disorders, including congenital malformations, tumor resection, infection, severe trauma, and accidents. Successfully regenerating cranial defects is an integral step to restore craniofacial function. However, challenges managing and controlling new bone tissue formation remain. Current advances in tissue engineering and regenerative medicine use innovative techniques to address these challenges. The use of biomaterials, stromal cells, and growth factors have demonstrated promising outcomes in vitro and in vivo. Natural and synthetic bone grafts combined with Mesenchymal Stromal Cells (MSCs) and growth factors have shown encouraging results in regenerating critical-size cranial defects. One of prevalent growth factors is Bone Morphogenetic Protein-2 (BMP-2). BMP-2 is defined as a gold standard growth factor that enhances new bone formation in vitro and in vivo. Recently, emerging evidence suggested that Megakaryocytes (MKs), induced by Thrombopoietin (TPO), show an increase in osteoblast proliferation in vitro and bone mass in vivo. Furthermore, a co-culture study shows mature MKs enhance MSC survival rate while maintaining their phenotype. Therefore, MKs can provide an insight as a potential therapy offering a safe and effective approach to regenerating critical-size cranial defects.
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Affiliation(s)
- Arbi Aghali
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA;
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47908, USA
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Zhang Y, Ma J, Zhang W. Berberine for bone regeneration: Therapeutic potential and molecular mechanisms. JOURNAL OF ETHNOPHARMACOLOGY 2021; 277:114249. [PMID: 34058315 DOI: 10.1016/j.jep.2021.114249] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 05/08/2021] [Accepted: 05/25/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Berberine is a quaternary ammonium isoquinoline alkaloid, mainly extracted from plants berberaceae, papaveraceae, ranunculaceae and rutaceae such as coptis chinensis Franch, Phellodendron chinense, and berberis pruinosa. The plants are extensively used in traditional medicine for treating infection, diabetes, arrhythmia, tumor, osteoporosis et al. Pharmacological studies showed berberine has effects of anti-inflammation, anti-tumor, lower blood lipid, lower blood glucose, anti-osteoporosis, anti-osteoarthritis et al. AIM OF THE STUDY: This review aims to summarize the application of natural herbs that contain berberine, the further use and development of berberine, the effects as well as mechanism of berberine on osteoblasts and osteoclasts, the recent advances of in vivo studies, in order to provide a scientific basis for its traditional uses and to prospect of the potential applications of berberine in clinics. METHOD The research was achieved by retrieving from the online electronic database, including PubMed, Web of Science, Google Scholar and China national knowledge infrastructure (CNKI). Patents, doctoral dissertations and master dissertations are also searched. RESULTS Berberine has a long history of medicinal use to treat various diseases including bone disease in China. Recent studies have defined its function in promoting bone regeneration and great potential in developing new drugs. But the systemic mechanism of berberine on bone regeneration still needs more research to clarify. CONCLUSION This review has systematically summarized the application, pharmacological effects, mechanism as well as in vivo studies of berberine and herbs which contain berberine. Berberine has a definite effect in promoting the proliferation and differentiation of osteoblasts as well as inhibiting the production of osteoclasts to promote bone regeneration. However, the present studies about the system mechanisms and pharmacological activity of berberine were incomplete. Applying berberine for new drug development remains an exciting and promising alternative to bone regeneration engineering, with broad potential for therapeutic and clinical practice.
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Affiliation(s)
- Yuhan Zhang
- Clinical College, Weifang Medical University, Weifang, 261053, PR China; Collaborative Innovation Center for Target Drug Delivery System, Weifang Medical University, Weifang, 261053, Shandong, PR China; Shandong Engineering Research Center for Smart Materials and Regenerative Medicine, Weifang Medical University, Weifang, Shandong, 261053, PR China
| | - Jinlong Ma
- College of Pharmacy, Weifang Medical University, Weifang, 261053, PR China; Collaborative Innovation Center for Target Drug Delivery System, Weifang Medical University, Weifang, 261053, Shandong, PR China.
| | - Weifen Zhang
- College of Pharmacy, Weifang Medical University, Weifang, 261053, PR China; Collaborative Innovation Center for Target Drug Delivery System, Weifang Medical University, Weifang, 261053, Shandong, PR China; Shandong Engineering Research Center for Smart Materials and Regenerative Medicine, Weifang Medical University, Weifang, Shandong, 261053, PR China.
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20
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A novel BMP-2-loaded hydroxyapatite/beta-tricalcium phosphate microsphere/hydrogel composite for bone regeneration. Sci Rep 2021; 11:16924. [PMID: 34413442 PMCID: PMC8376985 DOI: 10.1038/s41598-021-96484-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 08/02/2021] [Indexed: 11/25/2022] Open
Abstract
Although bone morphogenetic protein (BMP) has potent osteoinductivity, the potential adverse events attributed to its burst release prevent its widespread clinical application. Therefore, there is a strong need for BMP delivery systems that maximize osteoinductivity while preventing adverse effects. We evaluated the bone-regenerating potential of NOVOSIS putty (NP), a novel composite combining hydroxyapatite, beta-tricalcium phosphate microsphere/poloxamer 407-based hydrogel, and recombinant human (rh) BMP-2. In vitro assessment of release kinetics by enzyme-linked immunosorbent assay demonstrated sustained release of rhBMP-2 from NP and burst release from collagen sponge (CS), and in vivo assessment of release kinetics by longitudinal tracking of fluorescently labeled rhBMP-2 showed a longer biological half-life of rhBMP-2 with NP than with CS. Furthermore, osteogenic gene expression in MC3T3-E1 cells was significantly higher after co-culture with NP than after co-culture with CS, suggesting that the sustained release of rhBMP-2 from NP effectively contributed to the differentiation of osteoblasts. In a rat spinal fusion model, the volume and quality of newly formed bone was higher in the NP group than in the CS group. Use of NP results in efficient bone regeneration through sustained release of rhBMP-2 and improves the quality of BMP-induced bone.
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21
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Zhang Y, Wang T, Li J, Cui X, Jiang M, Zhang M, Wang X, Zhang W, Liu Z. Bilayer Membrane Composed of Mineralized Collagen and Chitosan Cast Film Coated With Berberine-Loaded PCL/PVP Electrospun Nanofiber Promotes Bone Regeneration. Front Bioeng Biotechnol 2021; 9:684335. [PMID: 34350160 PMCID: PMC8327095 DOI: 10.3389/fbioe.2021.684335] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/25/2021] [Indexed: 11/13/2022] Open
Abstract
Bone defects are difficult to repair and reconstruct as bone regeneration remains technically challenging, with exogenous factors required to accelerate this process. Biodegradable synthetic scaffolds are promising materials for stimulating bone tissue repair. In this study, we investigated whether a bilayer membrane that includes mineralized collagen (MC) and chitosan (CS) delivering berberine (BER)—a typical Chinese herbal monomer—could promote bone healing in a rat model. An MC/CS cast film was coated with polycaprolactone (PCL)/polyvinylpyrrolidone (PVP) electrospun nanofibers loaded with BER, yielding the BER@PCL/PVP-MC/CS bilayer membrane. The 3-dimensional structure had nanofibers of uniform diameter and showed good hydrophilicity; the bilayer membrane showed favorable mechanical properties. BER@PCL/PVP-MC/CS enhanced the proliferation and attachment of MC3T3-E1 cells in vitro and induced bone regeneration when implanted into a rat femoral bone defect. These findings provide evidence that BER@PCL/PVP-MC/CS has clinical potential for effective bone repair.
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Affiliation(s)
- Yuhan Zhang
- Clinical College, Weifang Medical University, Weifang, China.,Shandong Engineering Research Center for Smart Materials and Regenerative Medicine, Weifang Medical University, Weifang, China
| | - Ting Wang
- Shandong Engineering Research Center for Smart Materials and Regenerative Medicine, Weifang Medical University, Weifang, China.,College of Pharmacy, Weifang Medical University, Weifang, China
| | - Juan Li
- Shandong Engineering Research Center for Smart Materials and Regenerative Medicine, Weifang Medical University, Weifang, China.,College of Pharmacy, Weifang Medical University, Weifang, China
| | - Xiaoming Cui
- Shandong Engineering Research Center for Smart Materials and Regenerative Medicine, Weifang Medical University, Weifang, China.,College of Pharmacy, Weifang Medical University, Weifang, China
| | - Mingxia Jiang
- Shandong Engineering Research Center for Smart Materials and Regenerative Medicine, Weifang Medical University, Weifang, China.,College of Pharmacy, Weifang Medical University, Weifang, China
| | - Mogen Zhang
- Clinical College, Weifang Medical University, Weifang, China
| | - Xiaoli Wang
- College of Medical Imaging, Weifang Medical University, Weifang, China
| | - Weifen Zhang
- Shandong Engineering Research Center for Smart Materials and Regenerative Medicine, Weifang Medical University, Weifang, China.,College of Pharmacy, Weifang Medical University, Weifang, China
| | - Zhijun Liu
- Department of Microbiology, Weifang Medical University, Weifang, China
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22
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Bone Morphogenetic Proteins, Carriers, and Animal Models in the Development of Novel Bone Regenerative Therapies. MATERIALS 2021; 14:ma14133513. [PMID: 34202501 PMCID: PMC8269575 DOI: 10.3390/ma14133513] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/26/2022]
Abstract
Bone morphogenetic proteins (BMPs) possess a unique ability to induce new bone formation. Numerous preclinical studies have been conducted to develop novel, BMP-based osteoinductive devices for the management of segmental bone defects and posterolateral spinal fusion (PLF). In these studies, BMPs were combined with a broad range of carriers (natural and synthetic polymers, inorganic materials, and their combinations) and tested in various models in mice, rats, rabbits, dogs, sheep, and non-human primates. In this review, we summarized bone regeneration strategies and animal models used for the initial, intermediate, and advanced evaluation of promising therapeutical solutions for new bone formation and repair. Moreover, in this review, we discuss basic aspects to be considered when planning animal experiments, including anatomical characteristics of the species used, appropriate BMP dosing, duration of the observation period, and sample size.
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Effect of Inducible BMP-7 Expression on the Osteogenic Differentiation of Human Dental Pulp Stem Cells. Int J Mol Sci 2021; 22:ijms22126182. [PMID: 34201124 PMCID: PMC8229115 DOI: 10.3390/ijms22126182] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/31/2021] [Accepted: 06/04/2021] [Indexed: 12/19/2022] Open
Abstract
BMP-7 has shown inductive potential for in vitro osteogenic differentiation of mesenchymal stem cells, which are an ideal resource for regenerative medicine. Externally applied, recombinant BMP-7 was able to induce the osteogenic differentiation of DPSCs but based on our previous results with BMP-2, we aimed to study the effect of the tetracyclin-inducible BMP-7 expression on these cells. DPSC, mock, and DPSC-BMP-7 cell lines were cultured in the presence or absence of doxycycline, then alkaline phosphatase (ALP) activity, mineralization, and mRNA levels of different osteogenic marker genes were measured. In the DPSC-BMP-7 cell line, the level of BMP-7 mRNA significantly increased in the media supplemented with doxycycline, however, the expression of Runx2 and noggin genes was upregulated only after 21 days of incubation in the osteogenic medium with doxycycline. Moreover, while the examination of ALP activity showed reduced activity in the control medium containing doxycycline, the accumulation of minerals remained unchanged in the cultures. We have found that the induced BMP-7 expression failed to induce osteogenic differentiation of DPSCs. We propose three different mechanisms that may worth investigating for the engineering of expression systems that can be used for the induction of differentiation of mesenchymal stem cells.
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Role of rhBMP-7, Fibronectin, And Type I Collagen in Dental Implant Osseointegration Process: An Initial Pilot Study on Minipig Animals. MATERIALS 2021; 14:ma14092185. [PMID: 33923213 PMCID: PMC8123155 DOI: 10.3390/ma14092185] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 12/09/2022]
Abstract
Background: The biological factors involved in dental implant osseointegration need to be investigated to improve implant success. Methods: Twenty-four implants were inserted into the tibias of six minipigs. Bone samples were obtained at 7, 14, and 56 days. Biomolecular analyses evaluated mRNA of BMP-4, -7, Transforming Growth Factor-β2, Interleukin-1β, and Osteocalcin in sites treated with rhBMP-7, Type 1 Collagen, or Fibronectin (FN). Inflammation and osteogenesis were evaluated by histological analyses. Results: At 7 and 14 days, BMP-4 and BMP-7 increased in the sites prepared with rhBMP-7 and FN. BMP-7 remained greater at 56 days in rhBMP-7 and FN sites. BPM-4 at 7 and 14 days increased in Type 1 Collagen sites; BMP-7 increased from day 14. FN increased the TGF-β2 at all experimental times, whilst the rhBMP-7 only did so up to 7 days. IL-1β increased only in collagen-treated sites from 14 days. Osteocalcin was high in FN-treated sites. Neutrophilic granulocytes characterized the inflammatory infiltrate at 7 days, and mononuclear cells at 14 and 56 days. Conclusions: This initial pilot study, in a novel way, evidenced that Type 1 Collagen induced inflammation and did not stimulate bone production; conversely FN or rhBMP-7 showed neo-osteogenetic and anti-inflammatory properties when directly added into implant bone site.
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Rittipakorn P, Thuaksuban N, Mai-ngam K, Charoenla S, Noppakunmongkolchai W. Bioactivity of a Novel Polycaprolactone-Hydroxyapatite Scaffold Used as a Carrier of Low Dose BMP-2: An In Vitro Study. Polymers (Basel) 2021; 13:polym13030466. [PMID: 33535638 PMCID: PMC7867198 DOI: 10.3390/polym13030466] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 01/23/2023] Open
Abstract
Scaffolds of polycaprolactone-30% hydroxyapatite (PCL-30% HA) were fabricated using melt stretching and multilayer deposition (MSMD), and the in vitro response of osteoblasts to the scaffolds was assessed. In group A, the scaffolds were immersed in 10 µg/mL bone morphogenetic protein-2 (BMP-2) solution prior to being seeded with osteoblasts, and they were cultured in the medium without BMP-2. In group B, the cell-scaffold constructs without BMP-2 were cultured in medium containing 10 µg/mL BMP-2. The results showed greater cell proliferation in group A. The upregulation of runt-related transcription factor 2 and osteocalcin genes correlated with the release of BMP-2 from the scaffolds. The PCL-30% HA MSMD scaffolds appear to be suitable for use as osteoconductive frameworks and BMP-2 carriers.
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Affiliation(s)
- Pawornwan Rittipakorn
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai, Songkhla 90110, Thailand;
| | - Nuttawut Thuaksuban
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai, Songkhla 90110, Thailand;
- Correspondence: ; Tel.: +66-954592492
| | - Katanchalee Mai-ngam
- Ministry of Higher Education Science Research and Innovation (MHESRI), Ratchathewi, Bangkok 10400, Thailand; (K.M.-n.); (S.C.); (W.N.)
| | - Satrawut Charoenla
- Ministry of Higher Education Science Research and Innovation (MHESRI), Ratchathewi, Bangkok 10400, Thailand; (K.M.-n.); (S.C.); (W.N.)
| | - Warobon Noppakunmongkolchai
- Ministry of Higher Education Science Research and Innovation (MHESRI), Ratchathewi, Bangkok 10400, Thailand; (K.M.-n.); (S.C.); (W.N.)
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Yuan Q, Li L, Peng Y, Zhuang A, Wei W, Zhang D, Pang Y, Bi X. Biomimetic nanofibrous hybrid hydrogel membranes with sustained growth factor release for guided bone regeneration. Biomater Sci 2021; 9:1256-1271. [PMID: 33470265 DOI: 10.1039/d0bm01821j] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A biomimetic nanofibrous membrane can immobilize growth factors or agents to obtain sustained release and prolonged effect in tissue engineering.
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Affiliation(s)
- Qingyue Yuan
- Department of Ophthalmology
- Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai
- China
| | - Lunhao Li
- Department of Ophthalmology
- Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai
- China
| | - Yiyu Peng
- Department of Ophthalmology
- the First Affiliated Hospital of Zhejiang University
- China
| | - Ai Zhuang
- Department of Ophthalmology
- Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai
- China
| | - Wei Wei
- Department of Ophthalmology
- Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai
- China
| | - Dandan Zhang
- Department of Ophthalmology
- Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai
- China
| | - Yan Pang
- Department of Ophthalmology
- Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai
- China
| | - Xiaoping Bi
- Department of Ophthalmology
- Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai
- China
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Sinus Floor Augmentation Using Recombinant Human Bone Morphogenetic Protein-2 With Hydroxyapatite: Volume Assessment. J Craniofac Surg 2020; 31:912-915. [PMID: 32068727 DOI: 10.1097/scs.0000000000006251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION The aim of this study was to assess the efficacy of using bone morphogenetic protein-2 with hydroxyapatite granules (BMP-2/hydroxyapatite) during augmentation of maxillary sinus floor, with respect to changes in volume, relative to conventional bone graft materials. METHOD AND MATERIALS Twenty of 25 patients in the BMP-2/hydroxyapatite group, and 16 of 33 patients in the conventional materials group met the criteria for inclusion in this study. Computed tomography scans were performed preoperatively, immediately postoperatively, and at follow-up, approximately 6 months postoperatively. Changes in volume and height of both grafted materials were measured using 3-dimensional reconstruction software; these changes were compared between groups. RESULTS The mean (standard deviation) volumetric changes were 0.25 (0.11) cc and -0.07 (0.35) cc, and the mean rates of volumetric changes were 26.44% (7.78%) and -2.92% (30.92%) in BMP-2/hydroxyapatite and conventional materials groups, respectively. The mean height changes were 0.34 (0.73) mm and -0.63 (1.07) mm, and the mean rates of height changes were 3.67% (7.57%) and -5.95% (9.98%) in BMP-2/hydroxyapatite and conventional materials groups, respectively. CONCLUSION Compared with the conventional materials group, the BMP-2/hydroxyapatite group showed better maxillary sinus floor augmentation results in terms of volumetric changes and grafted material densities, and can provide predictably reliable outcomes.
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Bone Morphogenetic Protein-9-Stimulated Adipocyte-Derived Mesenchymal Progenitors Entrapped in a Thermoresponsive Nanocomposite Scaffold Facilitate Cranial Defect Repair. J Craniofac Surg 2020; 30:1915-1919. [PMID: 30896511 DOI: 10.1097/scs.0000000000005465] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Due to availability and ease of harvest, adipose tissue is a favorable source of progenitor cells in regenerative medicine, but has yet to be optimized for osteogenic differentiation. The purpose of this study was to test cranial bone healing in a surgical defect model utilizing bone morphogenetic protein-9 (BMP-9) transduced immortalized murine adipocyte (iMAD) progenitor cells in a citrate-based, phase-changing, poly(polyethylene glycol citrate-co-N-isopropylacrylamide) (PPCN)-gelatin scaffold. Mesenchymal progenitor iMAD cells were transduced with adenovirus expressing either BMP-9 or green fluorescent protein control. Twelve mice underwent craniectomy to achieve a critical-sized cranial defect. The iMAD cells were mixed with the PPCN-gelatin scaffold and injected into the defects. MicroCT imaging was performed in 2-week intervals for 12 weeks to track defect healing. Histologic analysis was performed on skull sections harvested after the final imaging at 12 weeks to assess quality and maturity of newly formed bone. Both the BMP-9 group and control group had similar initial defect sizes (P = 0.21). At each time point, the BMP-9 group demonstrated smaller defect size, higher percentage defect healed, and larger percentage defect change over time. At the end of the 12-week period, the BMP-9 group demonstrated mean defect closure of 27.39%, while the control group showed only a 9.89% defect closure (P < 0.05). The BMP-9-transduced iMADs combined with a PPCN-gelatin scaffold promote in vivo osteogenesis and exhibited significantly greater osteogenesis compared to control. Adipose-derived iMADs are a promising source of mesenchymal stem cells for further studies in regenerative medicine, specifically bone engineering with the aim of potential craniofacial applications.
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Bone Tissue Engineering in the Growing Calvaria Using Dipyridamole-Coated, Three-Dimensionally-Printed Bioceramic Scaffolds: Construct Optimization and Effects on Cranial Suture Patency. Plast Reconstr Surg 2020; 145:337e-347e. [PMID: 31985634 DOI: 10.1097/prs.0000000000006483] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Three-dimensionally-printed bioceramic scaffolds composed of β-tricalcium phosphate delivering the osteogenic agent dipyridamole can heal critically sized calvarial defects in skeletally mature translational models. However, this construct has yet to be applied to growing craniofacial models. In this study, the authors implanted three-dimensionally-printed bioceramic/dipyridamole scaffolds in a growing calvaria animal model and evaluated bone growth as a function of geometric scaffold design and dipyridamole concentration. Potential adverse effects on the growing suture were also evaluated. METHODS Bilateral calvarial defects (10 mm) were created in 5-week-old (approximately 1.1 kg) New Zealand White rabbits (n = 16 analyzed). Three-dimensionally-printed bioceramic scaffolds were constructed in quadrant form composed of varying pore dimensions (220, 330, and 500 μm). Each scaffold was coated with collagen and soaked in varying concentrations of dipyridamole (100, 1000, and 10,000 μM). Controls consisted of empty defects. Animals were killed 8 weeks postoperatively. Calvariae were analyzed using micro-computed tomography, three-dimensional reconstruction, and nondecalcified histologic sectioning. RESULTS Scaffold-induced bone growth was statistically greater than bone growth in empty defects (p = 0.02). Large scaffold pores, 500 μm, coated in 1000 μM dipyridamole yielded the most bone growth and lowest degree of scaffold presence within the defect. Histology showed vascularized woven and lamellar bone along with initial formation of vascular canals within the scaffold lattice. Micro-computed tomographic and histologic analysis revealed patent calvarial sutures without evidence of ectopic bone formation across all dipyridamole concentrations. CONCLUSION The authors present an effective pediatric bone tissue-engineering scaffold design and dipyridamole concentration that is effective in augmentation of calvarial bone generation while preserving cranial suture patency.
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Teng F, Wei L, Yu D, Deng L, Zheng Y, Lin H, Liu Y. Vertical bone augmentation with simultaneous implantation using deproteinized bovine bone block functionalized with a slow delivery of BMP-2. Clin Oral Implants Res 2020; 31:215-228. [PMID: 31730250 DOI: 10.1111/clr.13558] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 09/01/2019] [Accepted: 10/30/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVE We hypothesized that a biomimetic calcium phosphate (CaP) coating which incorporates morphogenetic protein 2 (BMP-2) on the deproteinized bovine bone (DBB) blocks could be used to enhance the vertical alveolar ridge augmentation for the one-stage onlay surgery with simultaneous implants insertion. We aimed to test this hypothesis in vivo. MATERIAL AND METHODS Beagles dogs were used for the study (n = 6 specimens per group). One month after building the edentulous animal model, 4 mm vertical alveolar bone loss were surgically created and four groups of blocks (W × L × H: 7 mm × 10 mm × 4 mm) were randomly fixed onto the reduced alveolar ridge by implants: (a) DBB blocks alone (negative control group); (b) DBB blocks with superficial adsorption of 50 μg BMP-2 (ad.BMP-2 group); (c) DBB blocks coated by biomimetic CaP coating which incorporates 50 μg BMP-2 (inc.BMP-2 group); and (d) autologous bone blocks (positive control group). After 3 months of healing, samples were harvested for micro-CT and histomorphometric analyses. RESULTS In histomorphometry, the inc.BMP-2 group showed a significantly thicker (coronal-apically) and wider (buccal-lingually) augmented bone area, better bone-to-implant contact than the negative control group. In both the micro-CT and histomorphometry, the inc.BMP-2 group showed more mineralized tissue than the negative control group and the inc.BMP-2 group also showed significantly more newly formed bone and residual grafts than the negative control group in the upper half of the blocks. In micro-CT, the inc.BMP-2 group showed significantly more bone-to-graft contact percentage than the ad.BMP-2 group. In both micro-CT and histomorphometry, the inc.BMP-2 group showed significantly more percentage of mineralized tissue than the ad.BMP-2 group. No significant differences were found between the inc.BMP-2 group and the positive control group either in micro-CT or in histomorphometry. CONCLUSIONS The DBB blocks with coating-delivered BMP-2 significantly enhanced the efficacy of vertical alveolar bone augmentation, compared with the unloaded blocks and blocks with adsorbed BMP-2, in the one-stage onlay surgery with simultaneous implant insertion.
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Affiliation(s)
- Fei Teng
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, China.,Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit, Amsterdam, The Netherlands
| | - Lingfei Wei
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit, Amsterdam, The Netherlands.,Department of Oral Implantology, Yantai Stomatological Hospital, Yantai, China
| | - Dedong Yu
- 2nd Dental Center, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - Liquan Deng
- School/Hospital of Stomatology, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yuanna Zheng
- School/Hospital of Stomatology, Zhejiang Chinese Medical University, Hangzhou, China
| | - Haiyan Lin
- Hangzhou Dental Hospital, Hangzhou, China
| | - Yuelian Liu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit, Amsterdam, The Netherlands
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Jivan F, Alge DL. Bio-orthogonal, Site-Selective Conjugation of Recombinant Proteins to Microporous Annealed Particle Hydrogels for Tissue Engineering. ADVANCED THERAPEUTICS 2020; 3:1900148. [PMID: 38882245 PMCID: PMC11178337 DOI: 10.1002/adtp.201900148] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Indexed: 06/18/2024]
Abstract
Protein conjugation to biomaterial scaffolds is a powerful approach for tissue engineering. However, typical chemical conjugation methods lack site-selectivity and can negatively impact protein bioactivity. To overcome this problem, a site-selective strategy is reported here for installing tetrazine groups on terminal poly-histidines (His-tags) of recombinant proteins. These tetrazine groups are then leveraged for bio-orthogonal conjugation to poly(ethylene glycol) (PEG) hydrogel microparticles, which are subsequently assembled into microporous annealed particle (MAP) hydrogels. Efficacy of the strategy is demonstrated using recombinant, green fluorescent protein with a His tag (His-GFP), which enhanced fluorescence of the MAP hydrogels compared to control protein lacking tetrazine groups. Subsequently, to demonstrate efficacy with a therapeutic protein, recombinant human bone morphogenetic protein-2 (His-BMP2) was conjugated. Human mesenchymal stem cells growing in the MAP hydrogels responded to the conjugated BMP2 and significantly increased mineralization after 21 days compared to controls. Thus, this site-selective protein modification strategy coupled with bio-orthogonal click chemistry is expected to be useful for bone defect repair and regeneration therapies. Broader application to the integration of protein therapeutics with biomaterials is also envisioned.
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Affiliation(s)
- Faraz Jivan
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Daniel L Alge
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX, 77843, USA
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Ansari M. Bone tissue regeneration: biology, strategies and interface studies. Prog Biomater 2019; 8:223-237. [PMID: 31768895 PMCID: PMC6930319 DOI: 10.1007/s40204-019-00125-z] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 11/15/2019] [Indexed: 12/11/2022] Open
Abstract
Nowadays, bone diseases and defects as a result of trauma, cancers, infections and degenerative and inflammatory conditions are increasing. Consequently, bone repair and replacement have been developed with improvement of orthopedic technologies and biomaterials of superior properties. This review paper is intended to sum up and discuss the most relevant studies performed in the field of bone biology and bone regeneration approaches. Therefore, the bone tissue regeneration was investigated by synthetic substitutes, scaffolds incorporating active molecules, nanomedicine, cell-based products, biomimetic fibrous and nonfibrous substitutes, biomaterial-based three-dimensional (3D) cell-printing substitutes, bioactive porous polymer/inorganic composites, magnetic field and nano-scaffolds with stem cells and bone-biomaterials interface studies.
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Affiliation(s)
- Mojtaba Ansari
- Department of Biomedical Engineering, Meybod University, Meybod, Iran.
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33
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Rosenberg M, Shilo D, Galperin L, Capucha T, Tarabieh K, Rachmiel A, Segal E. Bone Morphogenic Protein 2-Loaded Porous Silicon Carriers for Osteoinductive Implants. Pharmaceutics 2019; 11:E602. [PMID: 31726775 PMCID: PMC6920899 DOI: 10.3390/pharmaceutics11110602] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/07/2019] [Accepted: 11/08/2019] [Indexed: 12/19/2022] Open
Abstract
Bone morphogenetic proteins (BMPs) are probably the most important growth factors in bone formation and healing. However, the utilization of BMPs in clinical applications is mainly limited due to the protein poor solubility at physiological pH, rapid clearance and relatively short biological half-life. Herein, we develop degradable porous silicon (PSi)-based carriers for sustained delivery of BMP-2. Two different loading approaches are examined, physical adsorption and covalent conjugation, and their effect on the protein loading and release rate is thoroughly studied. The entrapment of the protein within the PSi nanostructures preserved its bioactivity for inducing osteogenic differentiation of rabbit bone marrow mesenchymal stems cells (BM-MSCs). BM-MSCs cultured with the BMP-2 loaded PSi carriers exhibit a relatively high alkaline phosphatase (ALP) activity. We also demonstrate that exposure of MSCs to empty PSi (no protein) carriers generates some extent of differentiation due to the ability of the carrier's degradation products to induce osteoblast differentiation. Finally, we demonstrate the integration of these promising BMP-2 carriers within a 3D-printed patient-specific implant, constructed of poly(caprolactone) (PCL), as a potential bone graft for critical size bone defects.
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Affiliation(s)
- Michal Rosenberg
- Department of Biotechnology and Food Engineering, Technion—Israel Institute of Technology, Haifa 3200003, Israel; (M.R.); (L.G.)
| | - Dekel Shilo
- Department of Oral and Maxillofacial Surgery, Rambam Health Care Campus, Haifa 3109601, Israel; (D.S.); (T.C.); (K.T.); (A.R.)
- Bruce Rappaport Faculty of Medicine, Technion—Israel Institute of Technology, Haifa 3109601, Israel
| | - Leonid Galperin
- Department of Biotechnology and Food Engineering, Technion—Israel Institute of Technology, Haifa 3200003, Israel; (M.R.); (L.G.)
| | - Tal Capucha
- Department of Oral and Maxillofacial Surgery, Rambam Health Care Campus, Haifa 3109601, Israel; (D.S.); (T.C.); (K.T.); (A.R.)
| | - Karim Tarabieh
- Department of Oral and Maxillofacial Surgery, Rambam Health Care Campus, Haifa 3109601, Israel; (D.S.); (T.C.); (K.T.); (A.R.)
| | - Adi Rachmiel
- Department of Oral and Maxillofacial Surgery, Rambam Health Care Campus, Haifa 3109601, Israel; (D.S.); (T.C.); (K.T.); (A.R.)
- Bruce Rappaport Faculty of Medicine, Technion—Israel Institute of Technology, Haifa 3109601, Israel
| | - Ester Segal
- Department of Biotechnology and Food Engineering, Technion—Israel Institute of Technology, Haifa 3200003, Israel; (M.R.); (L.G.)
- Russell Berrie Nanotechnology Institute, Technion—Israel Institute of Technology, Haifa 3200003, Israel
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Icariin Promotes the Osteogenic Action of BMP2 by Activating the cAMP Signaling Pathway. Molecules 2019; 24:molecules24213875. [PMID: 31661767 PMCID: PMC6864436 DOI: 10.3390/molecules24213875] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/19/2019] [Accepted: 10/23/2019] [Indexed: 12/26/2022] Open
Abstract
Icariin (ICA) is the main active flavonoid glucoside from herbs of the genus Epimedium; in traditional Chinese medicine, these herbs have long been prescribed for the treatment of bone fractures and osteoporosis. Several studies have shown that treatment with ICA can increase osteogenic differentiation and reduce bone loss in vivo and in vitro. However, the definite signaling pathway of this osteogenic effect remains unclear. In this study, we selected bone morphogenetic protein 2 (BMP2)-induced osteoblastic differentiation of multipotent mesenchymal progenitor C2C12 cells as a model of osteoblast differentiation. We investigated the effects of ICA on C2C12 cells osteogenic differentiation and the underlying molecular mechanisms. We found that ICA could enhance BMP2-mediated osteoblastic differentiation of C2C12 cells in a dose-dependent manner. Treatment with ICA activated the cAMP/PKA/CREB signaling axis in a time-dependent manner. Blocking cAMP signaling using the PKA selective inhibitor H89 significantly inhibited the stimulatory effect of ICA on osteogenesis. Therefore, the osteoinductive potential and the low cost of ICA indicate that it is a promising alternative treatment or promoter for enhancing the therapeutic effects of BMP2.
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Ramly EP, Alfonso AR, Kantar RS, Wang MM, Siso JRD, Ibrahim A, Coelho PG, Flores RL. Safety and Efficacy of Recombinant Human Bone Morphogenetic Protein-2 (rhBMP-2) in Craniofacial Surgery. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2019; 7:e2347. [PMID: 31592029 PMCID: PMC6756658 DOI: 10.1097/gox.0000000000002347] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Accepted: 05/29/2019] [Indexed: 12/18/2022]
Abstract
Recombinant human bone morphogenetic protein-2 (rhBMP-2) is one of the most commonly used osteogenic agents in the craniofacial skeleton. This study reviews the safety and efficacy of rhBMP-2 as applied to craniofacial reconstruction and assesses the level of scientific evidence currently available.
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Affiliation(s)
- Elie P Ramly
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - Allyson R Alfonso
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - Rami S Kantar
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - Maxime M Wang
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - J Rodrigo Diaz Siso
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - Amel Ibrahim
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - Paulo G Coelho
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
| | - Roberto L Flores
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health, New York, N.Y
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36
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Xia P, Wang S, Qi Z, Zhang W, Sun Y. BMP-2-releasing gelatin microspheres/PLGA scaffolds for bone repairment of X-ray-radiated rabbit radius defects. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:1662-1673. [PMID: 31032645 DOI: 10.1080/21691401.2019.1594852] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The purpose of this research is to assess the feasibility of poly(lactic-co-glycolic) acid (PLGA) incorporating gelatin microspheres (PLGA/GMs scaffold) for enhancing osteogenesis in vitro and at a radius defect of rabbits after X-ray radiation in vivo. After incorporating gelatin microspheres, PLGA scaffold demonstrated improved mechanical properties. Moreover, a sustained release property of recombinant human bone morphogenetic protein-2 (BMP-2) was achieved in BMP-2-releasing PLGA/GMs scaffold. BMP-2-releasing PLGA/GMs scaffold also enhanced proliferation and osteogenesis of rabbit bone mesenchymal stem cells (BMSCs) in vitro, indicating the bioactivity of BMP-2. After finishing X-ray radiation of the radius bone, 20-mm radius bone defects were generated, followed by being implanted with BMP-2-releasing PLGA/GMs scaffolds with or without bone marrow. Both PLGA/GMs scaffolds containing bone marrow or BMP-2 showed more obvious enhancement for bone regeneration than the empty scaffolds (control) at the radius defect. In the X-ray radiated groups, however, the bone regeneration was inhibited either with bone marrow or BMP-2. When combined with bone marrow, the BMP-2 showed significantly high osteogenic effect, regardless of X-ray radiation. It is considered that it is a promising way to repair bone defects even after X-ray radiation by a combination of bone marrow with the BMP-2-releasing PLGA/GMs scaffold.
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Affiliation(s)
- Peng Xia
- a Department of Orthopedics , Second Hospital of Jilin University , Changchun TX , PR China
| | - Song Wang
- b Department of Urology , First Hospital of Jilin University , Changchun TX , PR China
| | - Zhiping Qi
- a Department of Orthopedics , Second Hospital of Jilin University , Changchun TX , PR China
| | - Wei Zhang
- a Department of Orthopedics , Second Hospital of Jilin University , Changchun TX , PR China
| | - Yifu Sun
- c Department of Orthopedics , China-Japan Union Hospital of Jilin University , Changchun TX , PR China
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37
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Um IW, Ku JK, Lee BK, Yun PY, Lee JK, Nam JH. Postulated release profile of recombinant human bone morphogenetic protein-2 (rhBMP-2) from demineralized dentin matrix. J Korean Assoc Oral Maxillofac Surg 2019; 45:123-128. [PMID: 31334099 PMCID: PMC6620303 DOI: 10.5125/jkaoms.2019.45.3.123] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Demineralized dentin matrix (DDM) has been used as a recombinant human bone morphogenetic protein-2 (rhBMP-2) carrier in many clinical trials. To optimize the clinical safety and efficacy of rhBMP-2 with DDM, efforts have been made to improve the delivery of rhBMP-2 by 1) lowering the administered dose, 2) localizing the protein, and 3) prolonging its retention time at the action site as well as the bone forming capacity of the carrier itself. The release profile of rhBMP-2 that is associated with endogenous BMP in dentin has been postulated according to the type of incorporation, which is attributed to the loosened interfibrillar space and nanoporous dentinal tubule pores. Physically adsorbed and modified, physically entrapped rhBMP-2 is sequentially released from the DDM surface during the early stage of implantation. As DDM degradation progresses, the loosened interfibrillar space and enlarged dentinal tubules release the entrapped rhBMP-2. Finally, the endogenous BMP in dentin is released with osteoclastic dentin resorption. According to the postulated release profile, DDM can therefore be used in a controlled manner as a sequential delivery scaffold for rhBMP-2, thus sustaining the rhBMP-2 concentration for a prolonged period due to localization. In addition, we attempted to determine how to lower the rhBMP-2 concentration to 0.2 mg/mL, which is lower than the approved 1.5 mg/mL.
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Affiliation(s)
- In-Woong Um
- R&D Institute, Korea Tooth Bank, Seoul, Korea
| | - Jeong-Kui Ku
- Department of Oral and Maxillofacial Surgery, Section of Dentistry, Armed Forces Capital Hospital, Seongnam, Korea.,Department of Oral and Maxillofacial Surgery, Seoul Asan Medical Center, Seoul, Korea
| | - Bu Kyu Lee
- Department of Oral and Maxillofacial Surgery, Seoul Asan Medical Center, Seoul, Korea
| | - Pil-Young Yun
- Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jeong Keun Lee
- Department of Oral and Maxillofacial Surgery, Institute of Oral Health Science, Ajou University School of Medicine, Suwon, Korea
| | - Jeong-Hun Nam
- Department of Dental Implant/Oral Surgery, Private Clinic, Seoul, Korea
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Teng FY, Tai IC, Ho ML, Wang JW, Weng LW, Wang YJ, Wang MW, Tseng CC. Controlled release of BMP-2 from titanium with electrodeposition modification enhancing critical size bone formation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:109879. [PMID: 31546456 DOI: 10.1016/j.msec.2019.109879] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 05/09/2019] [Accepted: 06/10/2019] [Indexed: 02/07/2023]
Abstract
In this study, a porous Ti-alloy based implant with an interconnected channel structure (MAO-CaP-BMP2) is fabricated using a method combining 3D printing, microarc oxidation (MAO) treatment, and co-precipitation of Ca,P layer with BMP-2 technique. The macroporous structure with pore size of 600 μm made by 3D printing not only enhances the ingrowth of cells but also allows the formation of blood vessels inside the implant. As a result, the new bond formation is promoted. In addition, the microporous dioxide layer formed on the implant surface by MAO provides the sites for co-precipitation of Ca,P layer with BMP-2. The microstructure allows the prolonged release of BMP-2. Our results show that a sustained release of BMP-2 over 35 days is achieved for MAO-CaP-BMP2 group longer than Ti without MAO modification group and without Ca,P electrochemical deposition group. The slow release of BMP-2 at the bone/implant interface for a long period of time leads to enhancement of the osseointegration between the implant and surrounding bones. This result indicates that MAO-CaP-BMP2 is a good candidate of growth factor carrier. Successful regeneration of bone requires the concomitant processes of osteogenesis and neovascularization. MAO-CaP-BMP2 modified Ti-alloy implant is both osteoinductive and osteoconductive which can create better osteogenesis and angiogenesis. As a result, it can enhance bone formation.
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Affiliation(s)
- Fu-Yuan Teng
- Department of Dentistry, Koo Foundation Sun Yat-Sen Cancer Center, Taipei City, Taiwan
| | - I-Chun Tai
- Department of Physiology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Mei-Ling Ho
- Department of Physiology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Orthopaedic Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Jhe-Wen Wang
- Department of Mechanical Engineering, Graduate Institute of Mechanical and Precision Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung, Taiwan
| | - Li Wen Weng
- Medical Device Section, Medical Devices and Opto-Electronics Equipment Department, Metal Industries Research & Development Centre, Kaohsiung, Taiwan
| | - Yue Jun Wang
- Medical Device Section, Medical Devices and Opto-Electronics Equipment Department, Metal Industries Research & Development Centre, Kaohsiung, Taiwan
| | - Min-Wen Wang
- Department of Mechanical Engineering, Graduate Institute of Mechanical and Precision Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung, Taiwan.
| | - Chun-Chieh Tseng
- Medical Device Section, Medical Devices and Opto-Electronics Equipment Department, Metal Industries Research & Development Centre, Kaohsiung, Taiwan.
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Lin X, Hunziker EB, Liu T, Hu Q, Liu Y. Enhanced biocompatibility and improved osteogenesis of coralline hydroxyapatite modified by bone morphogenetic protein 2 incorporated into a biomimetic coating. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 96:329-336. [PMID: 30606540 DOI: 10.1016/j.msec.2018.11.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 08/31/2018] [Accepted: 11/13/2018] [Indexed: 11/17/2022]
Abstract
OBJECTIVES (1) To determine whether the biocompatibility of coralline hydroxyapatite (CHA) granules could be improved by using an octacalcium phosphate (OCP) coating layer, and/or functionalized with bone morphogenetic protein 2 (BMP-2), and (2) to investigate if BMP-2 incorporated into this coating is able to enhance its osteoinductive efficiency, in comparison to its surface-adsorbed delivery mode. METHODS CHA granules (0.25 g per sample) bearing a coating-incorporated depot of BMP-2 (20 μg/sample) together with the controls (CHA bearing an adsorbed depot of BMP-2; CHA granules with an OCP coating without BMP-2; pure CHA granules) were implanted subcutaneously in rats (n = 6 animals per group). Five weeks later, the implants were retrieved for histomorphometric analysis to quantify the volume of newly generated bone, bone marrow, fibrous tissue and foreign body giant cells (FBGCs). The osteoinductive efficiency of BMP-2 and the rates of CHA degradation were also determined. RESULTS The group with an OCP coating-incorporated depot of BMP-2 showed the highest volume and quality or bone, and the highest osteoinductive efficacy. OCP coating was able to reduce inflammatory responses (improve biocompatibility), and also simple adsorption of BMP-2 to CHA achieved this. CONCLUSIONS The biocompatibility of CHA granules (reduction of inflammation) was significantly improved by coating with a layer of OCP. Pure surface adsorption of BMP-2 to CHA also reduced inflammation. Incorporation of BMP-2 into the OCP coatings was associated with the highest volume and quality of bone, and the highest biocompatibility degree of the CHA granules. CLINICAL SIGNIFICANCE Higher osteoinductivity and improved biocompatibility of CHA can be obtained when a layer of BMP-2 functionalized OCP is deposited on the surfaces of CHA granules.
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Affiliation(s)
- Xingnan Lin
- Department of Orthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, 210008 Nanjing, China; Department of Oral Implantology and Prosthetic Dentistry, Academic Centre of Dentistry Amsterdam (ACTA), VU University and University of Amsterdam, 1081LA Amsterdam, the Netherlands.
| | - Ernst B Hunziker
- Departments of Osteoporosis and Orthopaedic Surgery, Inselspital (University Hospital), Bern, 3010 Bern, Switzerland.
| | - Tie Liu
- Department of Oral Implantology, Hospital/School of Stomatology, Zhejiang University, 310003 Hangzhou, Zhejiang, China
| | - Qingang Hu
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Medical School, Nanjing University, 210008 Nanjing, China.
| | - Yuelian Liu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre of Dentistry Amsterdam (ACTA), VU University and University of Amsterdam, 1081LA Amsterdam, the Netherlands.
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Shibata M, Takagi G, Kudo M, Kurita J, Kawamoto Y, Miyagi Y, Kanazashi M, Sakatani T, Naito Z, Tabata Y, Miyamoto M, Nitta T. Enhanced Sternal Healing Through Platelet-Rich Plasma and Biodegradable Gelatin Hydrogel. Tissue Eng Part A 2018; 24:1406-1412. [DOI: 10.1089/ten.tea.2017.0505] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Masafumi Shibata
- Department of Cardiovascular Surgery, Nippon Medical School, Tokyo, Japan
| | - Gen Takagi
- Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan
| | - Mitsuhiro Kudo
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo, Japan
| | - Jiro Kurita
- Department of Cardiovascular Surgery, Nippon Medical School, Tokyo, Japan
| | - Yoko Kawamoto
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo, Japan
| | - Yasuo Miyagi
- Department of Cardiovascular Surgery, Nippon Medical School, Tokyo, Japan
| | - Mikimoto Kanazashi
- Kanagawa Dental University, Graduate School of Dentistry, Department of Oral Functional & Restoration, Division of Periodontology, Kanagawa, Japan
| | - Takashi Sakatani
- Department of Diagnostic Pathology, Nippon Medical School Hospital, Tokyo, Japan
| | - Zenya Naito
- Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo, Japan
| | - Yasuhiko Tabata
- Department of Biomaterials, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | - Masaaki Miyamoto
- Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan
| | - Takashi Nitta
- Department of Cardiovascular Surgery, Nippon Medical School, Tokyo, Japan
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Huang J, Lin C, Fang J, Li X, Wang J, Deng S, Zhang S, Su W, Feng X, Chen B, Cheng D, Shuai X. pH-Sensitive Nanocarrier-Mediated Codelivery of Simvastatin and Noggin siRNA for Synergistic Enhancement of Osteogenesis. ACS APPLIED MATERIALS & INTERFACES 2018; 10:28471-28482. [PMID: 30067011 DOI: 10.1021/acsami.8b10521] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The inexpensive hypolipidemic drug simvastatin (SIM), which promotes bone regeneration by enhancing bone morphogenetic protein 2 (BMP-2) expression, has been regarded as an ideal alternative to BMP-2 therapy. However, SIM has low bioavailability and may induce the upregulation of the BMP-2-antagonistic noggin protein, which greatly limits the osteogenic effect. Here, a pH-sensitive copolymer, monomethoxy-poly(ethylene glycol)- b-branched polyethyleneimine- b-poly( N-( N', N'-diisopropylaminoethyl)- co-benzylamino)aspartamide (mPEG-bPEI-PAsp(DIP-BzA)) (PBP), was synthesized and self-assembled into a cationic micelle. SIM and siRNA targeting the noggin gene (N-siRNA) were loaded into the PAsp(DIP-BzA) core and the cationic bPEI interlayer of the micelle via hydrophobic and electrostatic interactions, respectively. The SIM-loaded micelle effectively delivered SIM into preosteoblast MC3T3-E1 cells and rapidly released it inside the acidic lysosome, resulting in the elevated expression of BMP-2. Meanwhile, the codelivered N-siRNA effectively suppressed the expression of noggin. Consequently, SIM and N-siRNA synergistically increased the BMP-2/noggin ratio and resulted in an obviously higher osteogenetic effect than did simvastatin or N-siRNA alone, both in vitro and in vivo.
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Affiliation(s)
- Jinsheng Huang
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
| | - Chaowen Lin
- Department of Orthopaedics and Traumatology, Nanfang Hospital , Southern Medical University , Guangzhou 510515 , China
| | - Jintao Fang
- Department of Microsurgery & Orthopedic Trauma , The First Affiliated Hospital of Sun Yat-sen University , Guangzhou 510080 , China
| | - Xiaoxia Li
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
| | - Jin Wang
- The Third Affiliated Hospital , Sun Yat-sen University , Guangzhou 510630 , China
| | - Shaohui Deng
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
| | - Sheng Zhang
- Department of Orthopaedics and Traumatology, Nanfang Hospital , Southern Medical University , Guangzhou 510515 , China
| | - Wanhan Su
- Department of Spinal Surgery, Longyan First Hospital , Fujian Medical University , Longyan 364000 , Fujian , China
| | - Xiaoreng Feng
- Department of Orthopaedics and Traumatology, Nanfang Hospital , Southern Medical University , Guangzhou 510515 , China
| | - Bin Chen
- Department of Orthopaedics and Traumatology, Nanfang Hospital , Southern Medical University , Guangzhou 510515 , China
| | - Du Cheng
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
| | - Xintao Shuai
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering , Sun Yat-sen University , Guangzhou 510275 , China
- The Third Affiliated Hospital , Sun Yat-sen University , Guangzhou 510630 , China
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Chen Z, Zhang Z, Feng J, Guo Y, Yu Y, Cui J, Li H, Shang L. Influence of Mussel-Derived Bioactive BMP-2-Decorated PLA on MSC Behavior in Vitro and Verification with Osteogenicity at Ectopic Sites in Vivo. ACS APPLIED MATERIALS & INTERFACES 2018; 10:11961-11971. [PMID: 29561589 DOI: 10.1021/acsami.8b01547] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Osteoinductive activity of the implant in bone healing and regeneration is still a challenging research topic. Therapeutic application of recombinant human bone morphogenetic protein-2 (BMP-2) is a promising approach to enhance osteogenesis. However, high dose and uncontrolled burst release of BMP-2 may introduce edema, bone overgrowth, cystlike bone formation, and inflammation. In this study, low-dose BMP-2 of 1 μg was used to design PLA-PD-BMP for functionalization of polylactic acid (PLA) implants via mussel-inspired polydopamine (PD) assist. For the first time, the binding property and efficiency of the PD coating with BMP-2 were directly demonstrated and analyzed using an antigen-antibody reaction. The obtained PLA-PD-BMP surface immobilized with this low BMP-2 dose can endow the implants with abilities of introducing strong stem cell adhesion and enhanced osteogenicity. Furthermore, in vivo osteoinduction of the PLA-PD-BMP-2 scaffolds was confirmed by a rat ectopic bone model, which is marked as the "gold standard" for the evidence of osteoinductive activity. The microcomputed tomography, Young's modulus, and histology analyses were also employed to demonstrate that PLA-PD-BMP grafted with 1 μg of BMP-2 can induce bone formation. Therefore, the method in this study can be used as a model system to immobilize other growth factors onto various different types of polymer substrates. The highly biomimetic mussel-derived strategy can therefore improve the clinical outcome of polymer-based medical implants in a facile, safe, and effective way.
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Glenske K, Donkiewicz P, Köwitsch A, Milosevic-Oljaca N, Rider P, Rofall S, Franke J, Jung O, Smeets R, Schnettler R, Wenisch S, Barbeck M. Applications of Metals for Bone Regeneration. Int J Mol Sci 2018; 19:E826. [PMID: 29534546 PMCID: PMC5877687 DOI: 10.3390/ijms19030826] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/09/2018] [Accepted: 03/11/2018] [Indexed: 02/06/2023] Open
Abstract
The regeneration of bone tissue is the main purpose of most therapies in dental medicine. For bone regeneration, calcium phosphate (CaP)-based substitute materials based on natural (allo- and xenografts) and synthetic origins (alloplastic materials) are applied for guiding the regeneration processes. The optimal bone substitute has to act as a substrate for bone ingrowth into a defect, as well as resorb in the time frame needed for complete regeneration up to the condition of restitution ad integrum. In this context, the modes of action of CaP-based substitute materials have been frequently investigated, where it has been shown that such materials strongly influence regenerative processes such as osteoblast growth or differentiation and also osteoclastic resorption due to different physicochemical properties of the materials. However, the material characteristics needed for the required ratio between new bone tissue formation and material degradation has not been found, until now. The addition of different substances such as collagen or growth factors and also of different cell types has already been tested but did not allow for sufficient or prompt application. Moreover, metals or metal ions are used differently as a basis or as supplement for different materials in the field of bone regeneration. Moreover, it has already been shown that different metal ions are integral components of bone tissue, playing functional roles in the physiological cellular environment as well as in the course of bone healing. The present review focuses on frequently used metals as integral parts of materials designed for bone regeneration, with the aim to provide an overview of currently existing knowledge about the effects of metals in the field of bone regeneration.
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Affiliation(s)
- Kristina Glenske
- Clinic of Small Animals, c/o Institute of Veterinary Anatomy, Histology and Embryology, Justus Liebig University of Giessen, D-35392 Giessen, Germany.
| | | | | | - Nada Milosevic-Oljaca
- Clinic of Small Animals, c/o Institute of Veterinary Anatomy, Histology and Embryology, Justus Liebig University of Giessen, D-35392 Giessen, Germany.
| | | | - Sven Rofall
- Botiss Biomaterials, D-12109 Berlin, Germany.
| | - Jörg Franke
- Clinic for Trauma Surgery and Orthopedics, Elbe Kliniken Stade-Buxtehude, D-21682 Stade, Germany.
| | - Ole Jung
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg- Eppendorf, D-20246 Hamburg, Germany.
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg- Eppendorf, D-20246 Hamburg, Germany.
| | | | - Sabine Wenisch
- Clinic of Small Animals, c/o Institute of Veterinary Anatomy, Histology and Embryology, Justus Liebig University of Giessen, D-35392 Giessen, Germany.
| | - Mike Barbeck
- Botiss Biomaterials, D-12109 Berlin, Germany.
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg- Eppendorf, D-20246 Hamburg, Germany.
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Miszuk JM, Xu T, Yao Q, Fang F, Childs JD, Hong Z, Tao J, Fong H, Sun H. Functionalization of PCL-3D Electrospun Nanofibrous Scaffolds for Improved BMP2-Induced Bone Formation. APPLIED MATERIALS TODAY 2018; 10:194-202. [PMID: 29577064 PMCID: PMC5863927 DOI: 10.1016/j.apmt.2017.12.004] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Bone morphogenic protein 2 (BMP2) is a key growth factor for bone regeneration, possessing FDA approval for orthopedic applications. BMP2 is often required in supratherapeutic doses clinically, yielding adverse side effects and substantial treatment costs. Considering the crucial role of materials for BMPs delivery and cell osteogenic differentiation, we devote to engineering an innovative bone-matrix mimicking niche to improve low dose of BMP2-induced bone formation. Our previous work describes a novel technique, named thermally induced nanofiber self-agglomeration (TISA), for generating 3D electrospun nanofibrous (NF) polycaprolactone (PCL) scaffolds. TISA process could readily blend PCL with PLA, leading to increased osteogenic capabilities in vitro, however, these bio-inert synthetic polymers produced limited BMP2-induced bone formation in vivo. We therefore hypothesize that functionalization of NF 3D PCL scaffolds with bone-like hydroxyapatite (HA) and BMP2 signaling activator phenamil will provide a favorable osteogenic niche for bone formation at low doses of BMP2. Compared to PCL-3D scaffolds, PCL/HA-3D scaffolds demonstrated synergistically enhanced osteogenic differentiation capabilities of C2C12 cells with phenamil. Importantly, in vivo studies showed this synergism was able to generate significantly increased new bone in an ectopic mouse model, suggesting PCL/HA-3D scaffolds act as a favorable synthetic extracellular matrix for bone regeneration.
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Affiliation(s)
- Jacob M. Miszuk
- Department of Biomedical Engineering, University of South Dakota, BioSNTR, Sioux Falls, SD 57107, USA
| | - Tao Xu
- Program of Biomedical Engineering, South Dakota School of Mines and Technology, Rapid City, SD 57701, USA
| | - Qingqing Yao
- Department of Biomedical Engineering, University of South Dakota, BioSNTR, Sioux Falls, SD 57107, USA
| | - Fang Fang
- Children’s Health Research Center at Sanford Research, Sioux Falls, SD 57104, USA
| | - Josh D. Childs
- Department of Biomedical Engineering, University of South Dakota, BioSNTR, Sioux Falls, SD 57107, USA
| | - Zhongkui Hong
- Department of Biomedical Engineering, University of South Dakota, BioSNTR, Sioux Falls, SD 57107, USA
| | - Jianning Tao
- Children’s Health Research Center at Sanford Research, Sioux Falls, SD 57104, USA
| | - Hao Fong
- Program of Biomedical Engineering, South Dakota School of Mines and Technology, Rapid City, SD 57701, USA
- Professor Hao Fong, Ph.D. Phone: (+1) 605-394-1229; Fax: (+1) 605-394-1232;
| | - Hongli Sun
- Department of Biomedical Engineering, University of South Dakota, BioSNTR, Sioux Falls, SD 57107, USA
- Corresponding Authors: Professor Hongli Sun, Ph.D. Phone: (+1) 605-275-7470; Fax: (+1) 605-782-3280;
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Zhang X, Yu Q, Wang YA, Zhao J. Dose reduction of bone morphogenetic protein-2 for bone regeneration using a delivery system based on lyophilization with trehalose. Int J Nanomedicine 2018; 13:403-414. [PMID: 29391797 PMCID: PMC5769568 DOI: 10.2147/ijn.s150875] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction To induce sufficient new bone formation, high doses of bone morphogenetic protein-2 (BMP-2) are applied in regenerative medicine that often induce serious side effects. Therefore, improved treatment strategies are required. Here, we investigate whether the delivery of BMP-2 lyophilized in the presence of trehalose reduced the dose of BMP-2 required for bone regeneration. Materials and methods A new growth factor delivery system was fabricated using BMP-2-loaded TiO2 nanotubes by lyophilization with trehalose (TiO2-Lyo-Tre-BMP-2). We measured BMP-2 release characteristics, bioactivity, and stability, and determined the effects on the osteogenic differentiation of bone marrow stromal cells in vitro. Additionally, we evaluated the ability of this formulation to regenerate new bone around implants in rat femur defects by micro-computed tomography (micro-CT), sequential fluorescent labelling, and histological analysis. Results Compared with absorbed BMP-2-loaded TiO2 nanotubes (TiO2-BMP-2), TiO2-Lyo-Tre-BMP-2 exhibited sustained release, consistent bioactivity, and higher stability of BMP-2, and resulted in greater osteogenic differentiation of BMSCs. Eight weeks post-operation, TiO2-Lyo-Tre-BMP-2 nanotubes, with various dosages of BMP-2, regenerated larger amounts of new bone than TiO2-BMP-2 nanotubes. Conclusion Our findings indicate that delivery of BMP-2 lyophilized with trehalose may be a promising method to reduce the dose of BMP-2 and avoid the associated side effects.
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Affiliation(s)
- Xiaochen Zhang
- Department of Oral and Maxillofacial-Head and Neck Oncology
| | - Quan Yu
- Department of Orthodontics, College of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yan-An Wang
- Department of Oral and Maxillofacial-Head and Neck Oncology
| | - Jun Zhao
- Department of Orthodontics, College of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Nam JW, Kim HJ. Stepwise verification of bone regeneration using recombinant human bone morphogenetic protein-2 in rat fibula model. J Korean Assoc Oral Maxillofac Surg 2017; 43:373-387. [PMID: 29333367 PMCID: PMC5756794 DOI: 10.5125/jkaoms.2017.43.6.373] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Revised: 09/14/2017] [Accepted: 09/20/2017] [Indexed: 11/07/2022] Open
Abstract
Objectives The purpose of this study was to introduce our three experiments on bone morphogenetic protein (BMP) and its carriers performed using the critical sized segmental defect (CSD) model in rat fibula and to investigate development of animal models and carriers for more effective bone regeneration. Materials and Methods For the experiments, 14, 16, and 24 rats with CSDs on both fibulae were used in Experiments 1, 2, and 3, respectively. BMP-2 with absorbable collagen sponge (ACS) (Experiments 1 and 2), autoclaved autogenous bone (AAB) and fibrin glue (FG) (Experiment 3), and xenogenic bone (Experiment 2) were used in the experimental groups. Radiographic and histomorphological evaluations were performed during the follow-up period of each experiment. Results Significant new bone formation was commonly observed in all experimental groups using BMP-2 compared to control and xenograft (porcine bone) groups. Although there was some difference based on BMP carrier, regenerated bone volume was typically reduced by remodeling after initially forming excessive bone. Conclusion BMP-2 demonstrates excellent ability for bone regeneration because of its osteoinductivity, but efficacy can be significantly different depending on its delivery system. ACS and FG showed relatively good bone regeneration capacity, satisfying the essential conditions of localization and release-control when used as BMP carriers. AAB could not provide release-control as a BMP carrier, but its space-maintenance role was remarkable. Carriers and scaffolds that can provide sufficient support to the BMP/carrier complex are necessary for large bone defects, and AAB is thought to be able to act as an effective scaffold. The CSD model of rat fibula is simple and useful for initial estimate of bone regeneration by agents including BMPs.
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Affiliation(s)
- Jung-Woo Nam
- Department of Oral and Maxillofacial Surgery, Yonsei University College of Dentistry, Seoul, Korea.,Department of Oral and Maxillofacial Surgery, Wonkwang University Sanbon Hospital, Gunpo, Korea
| | - Hyung-Jun Kim
- Department of Oral and Maxillofacial Surgery, Yonsei University College of Dentistry, Seoul, Korea.,Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Korea.,Research Institute for Dental Biomaterials & Bioengineering, Yonsei University College of Dentistry, Seoul, Korea
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Ghadakzadeh S, Hamdy R, Tabrizian M. Efficient in vitro delivery of Noggin siRNA enhances osteoblastogenesis. Heliyon 2017; 3:e00450. [PMID: 29167826 PMCID: PMC5686427 DOI: 10.1016/j.heliyon.2017.e00450] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 10/20/2017] [Accepted: 11/03/2017] [Indexed: 11/22/2022] Open
Abstract
Several types of serious bone defects would not heal without invasive clinical intervention. One approach to such defects is to enhance the capacity of bone-formation cells. Exogenous bone morphogenetic proteins (BMP) have been utilized to positively regulate matrix mineralization and osteoblastogenesis, however, numerous adverse effects are associated with this approach. Noggin, a potent antagonist of BMPs, is an ideal candidate to target and decrease the need for supraphysiological doses of BMPs. In the current research we report a novel siRNA-mediated gene knock-down strategy to down-regulate Noggin. We utilized a lipid nanoparticle (LNP) delivery strategy in pre-osteoblastic rat cells. In vitro LNP-siRNA treatment caused inconsequential cell toxicity and transfection was achieved in over 85% of cells. Noggin siRNA treatment successfully down-regulated cellular Noggin protein levels and enhanced BMP signal activity which in turn resulted in significantly increased osteoblast differentiation and extracellular matrix mineralization evidenced by histological assessments. Gene expression analysis showed that targeting Noggin specifically in bone cells would not lead to a compensatory effect from other BMP negative regulators such as Gremlin and Chordin. The results from this study support the notion that novel therapeutics targeting Noggin have the clinically relevant potential to enhance bone formation without the need for toxic doses of exogenous BMPs. Such treatments will undeniably provide safe and economical treatments for individuals whose poor bone repair results in permanent morbidity and disability.
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Affiliation(s)
- S. Ghadakzadeh
- Experimental Surgery, Department of Surgery, Faculty of Medicine, McGill University, Montreal, Canada
- Division of Orthopaedic Surgery, Shriners Hospital for Children, McGill University, Montreal, Canada
- Department of Biomedical Engineering, McGill University, Montreal, Canada
| | - R.C. Hamdy
- Experimental Surgery, Department of Surgery, Faculty of Medicine, McGill University, Montreal, Canada
- Division of Orthopaedic Surgery, Shriners Hospital for Children, McGill University, Montreal, Canada
| | - M. Tabrizian
- Department of Biomedical Engineering, McGill University, Montreal, Canada
- Faculty of Dentistry, McGill University, Montreal, Canada
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Chang AR, Cho TH, Hwang SJ. Receptor Activator of Nuclear Factor Kappa-B Ligand-Induced Local Osteoporotic Canine Mandible Model for the Evaluation of Peri-Implant Bone Regeneration. Tissue Eng Part C Methods 2017; 23:781-794. [DOI: 10.1089/ten.tec.2017.0196] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Ah Ryum Chang
- Department of Oral and Maxillofacial Surgery, BK 21 Plus, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Tae Hyung Cho
- Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Soon Jung Hwang
- Department of Oral and Maxillofacial Surgery, BK 21 Plus, School of Dentistry, Seoul National University, Seoul, Republic of Korea
- Dental Research Institute, Seoul National University, Seoul, Republic of Korea
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Nam J, Khureltogtokh S, Choi H, Lee A, Park Y, Kim H. Randomised controlled clinical trial of augmentation of the alveolar ridge using recombinant human bone morphogenetic protein 2 with hydroxyapatite and bovine-derived xenografts: comparison of changes in volume. Br J Oral Maxillofac Surg 2017; 55:822-829. [DOI: 10.1016/j.bjoms.2017.07.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 07/27/2017] [Indexed: 11/27/2022]
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50
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Synergistic effects of BMP-2, BMP-6 or BMP-7 with human plasma fibronectin onto hydroxyapatite coatings: A comparative study. Acta Biomater 2017; 55:481-492. [PMID: 28434979 DOI: 10.1016/j.actbio.2017.04.013] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/20/2017] [Accepted: 04/11/2017] [Indexed: 01/07/2023]
Abstract
Design of new osteoinductive biomaterials to reproduce an optimized physiological environment capable of recruiting stem cells and instructing their fate towards the osteoblastic lineage has become a priority in orthopaedic surgery. This work aims at evaluating the bioactivity of BMP combined with human plasma fibronectin (FN/BMP) delivered in solution or coated onto titanium-hydroxyapatite (TiHA) surfaces. Herein, we focus on the comparison of in vitro osteogenic efficacy in mouse C2C12 pre-osteoblasts of three BMP members, namely: BMP-2, BMP-6 and BMP-7. In parallel, we evaluated the molecular binding strength between each BMP with FN using the Surface Plasmon Resonance (SPR) technology. The affinity of BMPs for FN was found totally different and dependent on BMP type. Indeed, the combination of FN with BMP-2 on TiHA surfaces potentiates the burst of gene-mediated osteogenic induction, while it prolongs the osteogenic activity of BMP-6 and surprisingly annihilates the BMP-7 one. These results correlate with FN/BMP affinity for TiHA, since BMP-6>BMP-2>BMP-7. In addition, by analyzing the osteogenic activity in the peri-implant environment, we showed that osteoinductive paracrine effects were significantly decreased upon (FN/BMP-6), as opposed to (FN/BMP-2) coatings. Altogether, our results support the use of FN/BMP-6 to develop a biomimetic microenvironment capable to induce osteogenic activity under physiological conditions, with minimum paracrine signalization. STATEMENT OF SIGNIFICANCE The originality of our paper relies on the first direct comparison of the in vitro osteogenic potential of three osteogenic BMPs (BMP-2, -6 and -7) combined with native human plasma fibronectin delivered in solution or coated by laser transfer onto titanium hydroxyapatite surfaces. We confirm that BMP association with fibronectin enhances the osteogenic activity of BMP-2, -6 and -7, but with essential discrepancies, depending on the BMP member, and in agreement with the affinity of BMPs for fibronectin. Moreover, we bring elements to explain the origin of the BMP-2 medical life-threatening side-effects by analyzing in vitro paracrine effects. Finally, this work supports the alternative use of FN/BMP-6 to induce osteogenic activity under physiological conditions, with minimum side effects.
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