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Sadeghian Dehkord E, De Carvalho B, Ernst M, Albert A, Lambert F, Geris L. Influence of physicochemical characteristics of calcium phosphate-based biomaterials in cranio-maxillofacial bone regeneration. A systematic literature review and meta-analysis of preclinical models. Mater Today Bio 2024; 26:101100. [PMID: 38854953 PMCID: PMC11157282 DOI: 10.1016/j.mtbio.2024.101100] [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: 03/21/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 06/11/2024] Open
Abstract
Objectives Calcium phosphate-based biomaterials (CaP) are the most widely used biomaterials to enhance bone regeneration in the treatment of alveolar bone deficiencies, cranio-maxillofacial and periodontal infrabony defects, with positive preclinical and clinical results reported. This systematic review aimed to assess the influence of the physicochemical properties of CaP biomaterials on the performance of bone regeneration in preclinical animal models. Methods The PubMed, EMBASE and Web of Science databases were searched to retrieve the preclinical studies investigating physicochemical characteristics of CaP biomaterials. The studies were screened for inclusion based on intervention (physicochemical characterization and in vivo evaluation) and reported measurable outcomes. Results A total of 1532 articles were retrieved and 58 studies were ultimately included in the systematic review. A wide range of physicochemical characteristics of CaP biomaterials was found to be assessed in the included studies. Despite a high degree of heterogeneity, the meta-analysis was performed on 39 studies and evidenced significant effects of biomaterial characteristics on their bone regeneration outcomes. The study specifically showed that macropore size, Ca/P ratio, and compressive strength exerted significant influence on the formation of newly regenerated bone. Moreover, factors such as particle size, Ca/P ratio, and surface area were found to impact bone-to-material contact during the regeneration process. In terms of biodegradability, the amount of residual graft was determined by macropore size, particle size, and compressive strength. Conclusion The systematic review showed that the physicochemical characteristics of CaP biomaterials are highly determining for scaffold's performance, emphasizing its usefulness in designing the next generation of bone scaffolds to target higher rates of regeneration.
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Affiliation(s)
- Ehsan Sadeghian Dehkord
- GIGA In Silico Medicine, Biomechanics Research Unit (Biomech), University of Liège, Belgium
- Prometheus, The R&D Division for Skeletal Tissue Engineering, KU Leuven, Belgium
| | - Bruno De Carvalho
- Department of Periodontology, Oral-Dental and Implant Surgery, CHU of Liège, Belgium
- Dental Biomaterials Research Unit (d-BRU), University of Liège, Belgium
| | - Marie Ernst
- Biostatistics and Research Method Center (B-STAT), CHU of Liège and University of Liège, Belgium
| | - Adelin Albert
- Biostatistics and Research Method Center (B-STAT), CHU of Liège and University of Liège, Belgium
- Department of Public Health Sciences, University of Liège, Belgium
| | - France Lambert
- Department of Periodontology, Oral-Dental and Implant Surgery, CHU of Liège, Belgium
- Dental Biomaterials Research Unit (d-BRU), University of Liège, Belgium
| | - Liesbet Geris
- GIGA In Silico Medicine, Biomechanics Research Unit (Biomech), University of Liège, Belgium
- Prometheus, The R&D Division for Skeletal Tissue Engineering, KU Leuven, Belgium
- Department of Mechanical Engineering, Biomechanics Section (BMe), KU Leuven, Belgium
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Esfandiari S, Amid R, Kadkhodazadeh M, Kheiri A. Comparison of the Volume and Histological Properties of Newly Formed Bone after the Application of Three Types of Bone Substitutes in Critical-Sized Bone Defects. J Long Term Eff Med Implants 2024; 34:17-27. [PMID: 38305367 DOI: 10.1615/jlongtermeffmedimplants.2023046281] [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: 02/03/2024]
Abstract
This study aimed to compare the volume and quality of the newly formed bone following application of two types of xenografts and one synthetic material in bone defects in rabbit calvaria from histological and micro-CT aspects. Four 8-mm defects were created in 12 rabbit calvaria. Three defects were filled with bone substitutes and one was left unfilled as the control group. The newly formed bone was evaluated histologically and also by micro-CT at 8 and 12 weeks after the intervention. The percentage of osteogenesis was comparable in histomor-phometric assessment and micro-CT. Histological analysis showed that the percentage of the newly formed bone was 10.92 ± 5.17%, 14.70 ± 11.02%, 11.47 ± 7.04%, and 9.45 ± 5.18% in groups bovine 1, bovine 2, synthetic, and negative control, respectively after 8 weeks. These values were 33.70 ± 11.48%, 26.30 ± 18.05%, 22.92 ± 6.30%, and 14.82 ± 8.59%, respectively at 12 weeks. The difference in the percentage of the new bone formation at 8 and 12 weeks was not significant in any group (P > 0.05) except for bovine 1 group (P < 0.05). Micro-CT confirmed new bone formation in all groups but according to the micro-CT results, the difference between the control and other groups was significant in this respect (P < 0.05). All bone substitutes enhanced new bone formation compared with the control group. Micro-CT assessment yielded more accurate and different results compared with histological assessment.
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Affiliation(s)
- Shiva Esfandiari
- Department of Biology, School of Science, Shahid Beheshti University, Tehran, Iran
| | - Reza Amid
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdi Kadkhodazadeh
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Aida Kheiri
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Lee CY, Nedunchezian S, Lin SY, Su YF, Wu CW, Wu SC, Chen CH, Wang CK. Bilayer osteochondral graft in rabbit xenogeneic transplantation model comprising sintered 3D-printed bioceramic and human adipose-derived stem cells laden biohydrogel. J Biol Eng 2023; 17:74. [PMID: 38012588 PMCID: PMC10680339 DOI: 10.1186/s13036-023-00389-x] [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: 08/08/2023] [Accepted: 11/06/2023] [Indexed: 11/29/2023] Open
Abstract
Reconstruction of severe osteochondral defects in articular cartilage and subchondral trabecular bone remains a challenging problem. The well-integrated bilayer osteochondral graft design expects to be guided the chondrogenic and osteogenic differentiation for stem cells and provides a promising solution for osteochondral tissue repair in this study. The subchondral bone scaffold approach is based on the developed finer and denser 3D β-tricalcium phosphate (β-TCP) bioceramic scaffold process, which is made using a digital light processing (DLP) technology and the novel photocurable negative thermo-responsive (NTR) bioceramic slurry. Then, the concave-top disc sintered 3D-printed bioceramic incorporates the human adipose-derived stem cells (hADSCs) laden photo-cured hybrid biohydrogel (HG + 0.5AFnSi) comprised of hyaluronic acid methacryloyl (HAMA), gelatin methacryloyl (GelMA), and 0.5% (w/v) acrylate-functionalized nano-silica (AFnSi) crosslinker. The 3D β-TCP bioceramic compartment is used to provide essential mechanical support for cartilage regeneration in the long term and slow biodegradation. However, the apparent density and compressive strength of the 3D β-TCP bioceramics can be obtained for ~ 94.8% theoretical density and 11.38 ± 1.72 MPa, respectively. In addition, the in vivo results demonstrated that the hADSC + HG + 0.5AFnSi/3D β-TCP of the bilayer osteochondral graft showed a much better osteochondral defect repair outcome in a rabbit model. The other word, the subchondral bone scaffold of 3D β-TCP bioceramic could accelerate the bone formation and integration with the adjacent host cancellous tissue at 12 weeks after surgery. And then, a thicker cartilage layer with a smooth surface and uniformly aligned chondrocytes were observed by providing enough steady mechanical support of the 3D β-TCP bioceramic scaffold.
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Affiliation(s)
- Chih-Yun Lee
- Ph.D. Program in Life Sciences, College of Life Science, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Swathi Nedunchezian
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Department of Medicinal and Applied Chemistry, College of Life Science, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Sung-Yen Lin
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Departments of Orthopaedics, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Department of Orthopaedics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, 80145, Taiwan
| | - Yu-Feng Su
- Faculty of Post-Baccalaureate Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80756, Taiwan
- Department of Surgery, Division of Neurosurgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Che-Wei Wu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Shun-Cheng Wu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Department of Nursing, Asia University, Taichung, 41354, Taiwan
| | - Chung-Hwan Chen
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Departments of Orthopaedics, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
- Department of Orthopaedics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, 80145, Taiwan
- Ph.D. Program in Biomedical Engineering, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Chih-Kuang Wang
- Ph.D. Program in Life Sciences, College of Life Science, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
- Department of Medicinal and Applied Chemistry, College of Life Science, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
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Jin P, Liu L, Cheng L, Chen X, Xi S, Jiang T. Calcium-to-phosphorus releasing ratio affects osteoinductivity and osteoconductivity of calcium phosphate bioceramics in bone tissue engineering. Biomed Eng Online 2023; 22:12. [PMID: 36759894 PMCID: PMC9912630 DOI: 10.1186/s12938-023-01067-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 01/16/2023] [Indexed: 02/11/2023] Open
Abstract
Calcium phosphate (Ca-P) bioceramics, including hydroxyapatite (HA), biphasic calcium phosphate (BCP), and beta-tricalcium phosphate (β-TCP), have been widely used in bone reconstruction. Many studies have focused on the osteoconductivity or osteoinductivity of Ca-P bioceramics, but the association between osteoconductivity and osteoinductivity is not well understood. In our study, the osteoconductivity of HA, BCP, and β-TCP was investigated based on the osteoblastic differentiation in vitro and in situ as well as calvarial defect repair in vivo, and osteoinductivity was evaluated by using pluripotent mesenchymal stem cells (MSCs) in vitro and heterotopic ossification in muscles in vivo. Our results showed that the cell viability, alkaline phosphatase activity, and expression of osteogenesis-related genes, including osteocalcin (Ocn), bone sialoprotein (Bsp), alpha-1 type I collagen (Col1a1), and runt-related transcription factor 2 (Runx2), of osteoblasts each ranked as BCP > β-TCP > HA, but the alkaline phosphatase activity and expression of osteogenic differentiation genes of MSCs each ranked as β-TCP > BCP > HA. Calvarial defect implantation of Ca-P bioceramics ranked as BCP > β-TCP ≥ HA, but intramuscular implantation ranked as β-TCP ≥ BCP > HA in vivo. Further investigation indicated that osteoconductivity and osteoinductivity are affected by the Ca/P ratio surrounding the Ca-P bioceramics. Thus, manipulating the appropriate calcium-to-phosphorus releasing ratio is a critical factor for determining the osteoinductivity of Ca-P bioceramics in bone tissue engineering.
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Affiliation(s)
- Pan Jin
- grid.410654.20000 0000 8880 6009Health Science Center, Yangtze University, Jingzhou, 434023 Hubei China ,Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-Constructed By the Province and MinistryGuangxi Medical University, Nanning, 530021 Guangxi China
| | - Lei Liu
- grid.452877.b0000 0004 6005 8466Articular Surgery, The Second Nanning People’s Hospital, Third Affiliated Hospital of Guangxi Medical University), Nanning, 530031 Guangxi China
| | - Lin Cheng
- grid.410654.20000 0000 8880 6009Health Science Center, Yangtze University, Jingzhou, 434023 Hubei China
| | - Xichi Chen
- grid.410654.20000 0000 8880 6009Health Science Center, Yangtze University, Jingzhou, 434023 Hubei China
| | - Shanshan Xi
- Health Science Center, Yangtze University, Jingzhou, 434023, Hubei, China.
| | - Tongmeng Jiang
- Key Laboratory of Hainan Trauma and Disaster Rescue, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, 571199, China. .,Key Laboratory of Emergency and Trauma, Ministry of Education, Engineering Research Center for Hainan Bio-Smart Materials and Bio-Medical Devices, Key Laboratory of Hainan Functional Materials and Molecular Imaging, College of Emergency and Trauma, Hainan Medical University, Haikou, 571199, China.
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Tangsuksant T, Ummartyotin S, Pongprayoon T, Arpornmaeklong P, Apinyauppatham K. Property and biological effects of the cuttlebone derived calcium phosphate particles, a potential bioactive bone substitute material. J Biomed Mater Res B Appl Biomater 2023; 111:1207-1223. [PMID: 36718607 DOI: 10.1002/jbm.b.35226] [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: 07/16/2022] [Revised: 12/16/2022] [Accepted: 01/13/2023] [Indexed: 02/01/2023]
Abstract
Cuttlebone (CB) is a marine waste-derived biomaterial and a rich source of calcium carbonate for the biosynthesis of the calcium phosphate (CaP) particles. The current study aimed to synthesize CB derived biphasic calcium phosphate (CB-BCP) and investigate biological activity of the CB-CaP: hydroxyapatite (CB-HA), beta-tricalcium phosphate (CB-b-TCP) and biphasic 60:40 (w/w) HA/b-TCP (CB-BCP) with the human dental pulp stem cells (hDPSCs). The particles were synthesized using solid state reactions under mild condition and properties of the particles were compared with a commercial BCP as a reference material. Morphology, particle size, physicochemical properties, mineral contents, and the ion released patterns of the particles were examined. Then the particle/cell interaction, cell cytotoxicity and osteogenic property of the particles were investigated in the direct and indirect cell culture models. It was found that an average particles size of the CB-HA was 304.73 ± 4.19 nm, CB-b-TCP, 503.17 ± 23.06 nm and CB-BCP, 1394.67 ± 168.19 nm. The physicochemical characteristics of the CB-CaP were consistent with the HA, b-TCP and BCP. The highest level of calcium (Ca) was found in the mineral contents and the preincubated medium of the CB-BCP and traces of fluoride, magnesium, strontium, and zinc were identified in the CB-CaP. The cell cytotoxicity and osteogenic property of the particles were dose dependent. The particles adhered on cell surface and were internalized into the cell cytoplasm. The CB-BCP and CB-HA indirectly and directly promote osteoblastic differentiations of the hDPSCs in stronger levels than other groups. The CB-BCP and CB-HA were potential bioactive bone substitute materials.
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Affiliation(s)
- Thanin Tangsuksant
- Master of Science Program in Dental Implantology, Faculty of Dentistry, Thammasat University Rangsit Campus, Khlong Luang, Thailand
| | - Sarute Ummartyotin
- Department of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University Rangsit Campus, Khlong Luang, Thailand
| | - Thirawudh Pongprayoon
- Department of Chemical Engineering, Faculty of Engineering, King Mongkut's University of Technology North Bangkok (KMUTNB), Bangkok, Thailand
| | - Premjit Arpornmaeklong
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Thammasat University Rangsit Campus, Khlong Luang, Thailand
| | - Komsan Apinyauppatham
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Thammasat University Rangsit Campus, Khlong Luang, Thailand
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Ou Y, Wu W, Zhou Z. In-Vitro Degradation Behaviors of Composite Scaffolds Based on Poly(Lactide-co-Glycolide-co-ε-Caprolactone), 1,4-Butanediamine Modified Poly(Lactide-co-Glycolide) and Bioceramics. J MACROMOL SCI B 2022. [DOI: 10.1080/00222348.2022.2101972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Yun Ou
- Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan, P. R. China
- School of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan Hunan, China
| | - Wei Wu
- Daqing Petrochemical Research Institute of CNPC, Daqing, P. R. China
| | - Zhihua Zhou
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Hunan University of Science and Technology, Xiangtan, P. R. China
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Guo M, Zhou Z, Liu W, Huang T, Wu W, Duan J, Yi M, Zhang C, He X, Chen J, Gu J, Fang J. Preparation and Characterization of Poly(lactide-co-glycolide-co-ε-caprolactone)- 1,4-Butanediamine-Modified Poly(lactide-co-glycolide)/Nano-Biaoactive Glass-β-Tricalcium Phosphate Composite Scaffolds. J MACROMOL SCI B 2022. [DOI: 10.1080/00222348.2022.2092344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Meimei Guo
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Zhihua Zhou
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Hunan University of Science and Technology, Xiangtan, P. R. China
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecular, Ministry of Education, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Wenjuan Liu
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Tianlong Huang
- Department of Orthopedics, Second Xiangya Hospital, Central South University, Changsha, P. R. China
| | - Wei Wu
- Daqing Petrochemical Research Institute of CNPC, Daqing, P. R. China
| | - Jianglong Duan
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Meiling Yi
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Chao Zhang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Xiao He
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Jinxing Chen
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Jiaming Gu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Jianjun Fang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
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Kuroda A, Saito W, Inoue G, Miyagi M, Shoji S, Sekiguchi H, Takaso M, Uchida K. Effect of Bone Morphogenetic Protein-2 (BMP-2)/Hydroxyapatite/In Situ-Formed Hyaluronan Hydrogel Composites on Bone Formation in a Murine Model of Posterolateral Lumbar Fusion. Cureus 2022; 14:e25509. [PMID: 35663656 PMCID: PMC9152467 DOI: 10.7759/cureus.25509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2022] [Indexed: 11/18/2022] Open
Abstract
Several types of calcium phosphate (CaP) biomaterial carriers have been designed to deliver bone morphogenetic protein-2 (BMP-2) to augment spinal fusion in spinal surgery. Here, we evaluated an in situ-formed hydrogel (IFH) constructed from hyaluronan (IFH-HA) combined with a BMP2/hydroxyapatite (HAP) composite in bone formation in a murine model of posterolateral lumbar fusion (PLF). HAP was submerged in HA-tyramine (TA) polymer solution containing horseradish peroxidase (HRP) and 2 µg BMP-2 (BMP2/HA-TA/HRP solution). H2O2 was added to initiate the curing reaction (BMP-2/IFH-HA). phosphate-buffered saline (PBS) was added to the BMP2/HA-TA/HRP solution (BMP-2/HA-TA) instead of H2O2 to evaluate the effectiveness of the curing reaction. HAP immersed in PBS was used as a control. PLF model mice were randomly assigned to receive one these composites (n = 10 each). X-ray images were taken to assess the bone fusion, and microcomputed tomography analysis was conducted to examine new bone formation at the graft site four weeks following surgery. No evidence of fusion was observed four weeks after surgery in the Control or BMP2/HA-TA group. In contrast, the BMP2/IFH-HA group exhibited newly formed bone between the transverse processes and bone union in coronal sections. Relative to the Control and BMP2/HA-TA groups, the BMP2/IFH-HA group showed significantly greater bone volume. The BMP2/IFH-HA group also showed significantly elevated bone mineral content relative to the BMP2/HA-TA group. A composite comprising BMP2/HAP and IFH-HA, thus, enhanced the new bone formation in a murine model of PLF, suggesting its promise for augmenting spinal fusion.
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An YZ, Strauss FJ, Park JY, Shen YQ, Thoma DS, Lee JS. Membrane fixation enhances guided bone regeneration in standardized calvarial defects: A pre-clinical study. J Clin Periodontol 2022; 49:177-187. [PMID: 34866208 DOI: 10.1111/jcpe.13583] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/09/2021] [Accepted: 11/23/2021] [Indexed: 12/21/2022]
Abstract
AIM To determine whether collagen membrane (CM) fixation enhances guided bone regeneration in standardized defects. MATERIALS AND METHODS Four 8-mm-diameter defects were surgically made in eight rabbit calvaria, and randomly allocated into four groups: control (empty), unfixed-CM, fixed-CM, and unfixed-CM with bone graft (BG + CM) (positive control). After 1- and 4-week healing periods, the animals were sacrificed and quantitative reverse transcription polymerase chain reaction, micro-computed tomography, and histological outcomes were assessed. RESULTS At week 1, the expression levels of BMP-2, FGF-2, VEGF, and osteocalcin were significantly higher in the fixed-CM group than in the unfixed-CM and control groups (p < .05). Conversely, cathepsin-K was significantly expressed in the unfixed-CM group. No significant differences in expression markers were observed between the fixed-CM and BG + CM groups (p > .05). At week 4, new bone formation was significantly higher in the fixed-CM group than the unfixed-CM and control groups (p < .05), but similar to the BG + CM group (p > .05). CONCLUSIONS CM fixation enhances the expression of osteogenic factors similar to BG + CM, leading to significantly more new bone formation. This suggests that the osteogenic potential is greater when membranes are fixed, thereby limiting the necessity of membrane-supporting materials to enhance bone formation.
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Affiliation(s)
- Yin-Zhe An
- Department of Periodontology, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Franz-Josef Strauss
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland
- Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago, Chile
- Department of Oral Biology, Medical University of Vienna, Vienna, Austria
| | - Jin-Young Park
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Republic of Korea
| | - Yu Qin Shen
- Department of Periodontology, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Daniel Stefan Thoma
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland
| | - Jung-Seok Lee
- Department of Oral Biology, Medical University of Vienna, Vienna, Austria
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Republic of Korea
- Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul, Republic of Korea
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Lee DK, Ki MR, Kim EH, Park CJ, Ryu JJ, Jang HS, Pack SP, Jo YK, Jun SH. Biosilicated collagen/β-tricalcium phosphate composites as a BMP-2-delivering bone-graft substitute for accelerated craniofacial bone regeneration. Biomater Res 2021; 25:13. [PMID: 33883043 PMCID: PMC8059180 DOI: 10.1186/s40824-021-00214-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 04/04/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Bioceramic β-tricalcium phosphate (β-TCP) is used as a bone-grafting material and a therapeutic drug carrier for treatment of bone defects in the oral and maxillofacial regions due to the osteoconductivity and biocompatibility. However, the low mechanical strength and limited osteoinductivity of β-TCP agglomerate restrict bone regenerating performance in clinical settings. METHODS Herein, a biomimetic composite is proposed as a bone morphogenetic protein-2 (BMP-2)-delivering bone graft substitute to achieve a robust bone grafting and augmented bone regeneration. RESULTS The sequential processes of brown algae-inspired biosilicification and collagen coating on the surface of β-TCP enable the effective incorporation of BMP-2 into the coating layer without losing its bioactivity. The sustained delivery of BMP-2 from the biosilicated collagen and β-TCP composites promoted in vitro osteogenic behaviors of pre-osteoblasts and remarkedly accelerated in vivo bone regeneration within a rat calvarial bone defect. CONCLUSIONS Our multicomposite bone substitutes can be practically applied to improve bone tissue growth in bone grafting applications with further expansion to general bone tissue engineering.
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Affiliation(s)
- Dong Keon Lee
- Department of Oral and Maxillofacial Surgery, Korea University Anam Hospital, 02841, Seoul, Korea
| | - Mi-Ran Ki
- Department of Biotechnology and Bioinformatics, Korea University, 30019, Sejong, Korea
| | - Euy Hyun Kim
- Department of Oral and Maxillofacial Surgery, Korea University Anam Hospital, 02841, Seoul, Korea
| | - Chang-Joo Park
- Division of Oral and Maxillofacial Surgery, Department of Dentistry, College of Medicine, Hanyang University, 04763, Seoul, Korea
| | - Jae Jun Ryu
- Department of Prosthodontics, Korea University Anam Hospital, 02841, Seoul, Korea
| | - Hyon Seok Jang
- Department of Oral and Maxillofacial Surgery, Korea University Ansan Hospital, 15355, Ansan, Korea
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, 30019, Sejong, Korea.
| | - Yun Kee Jo
- Department of Biomedical Convergence Science and Technology, School of Convergence, Kyungpook National University, 41566, Daegu, Korea.
- Cell and Matrix Research Institute, Kyungpook National University, 41566, Daegu, Korea.
| | - Sang Ho Jun
- Department of Oral and Maxillofacial Surgery, Korea University Anam Hospital, 02841, Seoul, Korea.
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11
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de Oliveira Junior JM, Montagner PG, Carrijo RC, Martinez EF. Physical characterization of biphasic bioceramic materials with different granulation sizes and their influence on bone repair and inflammation in rat calvaria. Sci Rep 2021; 11:4484. [PMID: 33627770 PMCID: PMC7904940 DOI: 10.1038/s41598-021-84033-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/10/2021] [Indexed: 11/21/2022] Open
Abstract
Biphasic calcium phosphate bioceramics (BCP) consist of a mixture of hydroxyapatite (HA) and beta-tricalcium phosphate (β-TCP) within the same particle. Due to their osteoconductive properties, biocompatibility and resemblance to natural bone, these materials have become a promising and suitable alternative to autologous bone grafting. First, the topography characteristics, specific surface area, and total pore volume of BCP were evaluated using scanning electron microscopy and the BET and BJH methods. Next, this study aimed to evaluate the intensity of the inflammatory process and the bone neoformation capacity of various particle sizes of BCP in the repair of critical defects in the calvaria of rats. A xenogeneic biomaterial was used in the control group. After 30, 60, and 90 days, the animals were euthanized, followed by the processing of the samples to measure the intensity of inflammatory infiltrates and the areas of bone neoformation. Our results indicate that no considerable differences were observed in the inflammatory scores in sites treated with distinct BCP grain sizes. A greater area of bone neoformation was measured in the xenogeneic group at all analysis times, with no substantial differences in bone formation between the BCP particle size in the range of 250-500 µm and 500-1000 µm.
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Affiliation(s)
| | - Pedro Giorgetti Montagner
- Division of Cell Biology and Oral Pathology, São Leopoldo Mandic Research Institute, Campinas, SP, 13045-755, Brazil
| | - Rafael Coutinho Carrijo
- Division of Oral Implantology, São Leopoldo Mandic Research Institute, Campinas, SP, 13045-755, Brazil
| | - Elizabeth Ferreira Martinez
- Division of Cell Biology and Oral Pathology, São Leopoldo Mandic Research Institute, Campinas, SP, 13045-755, Brazil
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12
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Katagiri H, El Tawil Y, Lang NP, Imber JC, Sculean A, Fujioka-Kobayashi M, Saulacic N. Collagen-Based Matrices for Osteoconduction: A Preclinical In Vivo Study. Biomedicines 2021; 9:biomedicines9020143. [PMID: 33540647 PMCID: PMC7913003 DOI: 10.3390/biomedicines9020143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 01/27/2021] [Indexed: 11/20/2022] Open
Abstract
The aim of this study was to evaluate the influence of additional hydroxyapatite (HA) in collagen-based matrices (CM) and membrane placement on bone formation in calvarial defects. Critical size defects in the calvaria of 16 New Zealand White Rabbits were randomly treated with CM or mineralized collagen-based matrices (mCM). Half of the sites were covered with a collagen membrane. Animals were euthanized after 12 weeks of healing. The samples were studied by micro-CT and histology. Newly formed lamellar bone was observed in all samples at the periphery of the defect. In the central areas, however, new bone composed of both woven and lamellar bone was embedded in the soft tissue. Samples treated with mCM showed more residual biomaterial and induced more small bony islands in the central areas of the defects than samples with CM. Nevertheless, a complete defect closure was not observed in any of the samples at 12 weeks. Membrane placement resulted in a decrease in bone density and height. Significant differences between the groups were revealed only between CM groups with and without membrane coverage for bone height in the central area of the defect. Neither mineralization of CM nor membrane placement improved the osteogenic capacity in this particular defect. Nevertheless, mineralisation influenced bone density without a membrane placement and bone volume underneath a membrane. CM may be used as a scaffold in bone regeneration procedures, without the need of a membrane coverage. Further preclinical studies are warrant to optimise the potential of mCM.
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Affiliation(s)
- Hiroki Katagiri
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, Faculty of Medicine, University of Berne, CH-3010 Berne, Switzerland; (H.K.); (Y.E.T.); (N.P.L.); (M.F.-K.)
- Advanced Research Center, The Nippon Dental University School of Life Dentistry at Niigata, Niigata 951-8580, Japan
| | - Yacine El Tawil
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, Faculty of Medicine, University of Berne, CH-3010 Berne, Switzerland; (H.K.); (Y.E.T.); (N.P.L.); (M.F.-K.)
| | - Niklaus P. Lang
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, Faculty of Medicine, University of Berne, CH-3010 Berne, Switzerland; (H.K.); (Y.E.T.); (N.P.L.); (M.F.-K.)
| | - Jean-Claude Imber
- Department of Periodontology, School of Dental Medicine, University of Berne, CH-3010 Berne, Switzerland; (J.-C.I.); (A.S.)
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Berne, CH-3010 Berne, Switzerland; (J.-C.I.); (A.S.)
| | - Masako Fujioka-Kobayashi
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, Faculty of Medicine, University of Berne, CH-3010 Berne, Switzerland; (H.K.); (Y.E.T.); (N.P.L.); (M.F.-K.)
| | - Nikola Saulacic
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, Faculty of Medicine, University of Berne, CH-3010 Berne, Switzerland; (H.K.); (Y.E.T.); (N.P.L.); (M.F.-K.)
- Correspondence: ; Tel.: +41-31-632-8764
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13
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Ou M, Huang X. Influence of bone formation by composite scaffolds with different proportions of hydroxyapatite and collagen. Dent Mater 2021; 37:e231-e244. [PMID: 33509634 DOI: 10.1016/j.dental.2020.12.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 11/14/2020] [Accepted: 12/30/2020] [Indexed: 10/22/2022]
Abstract
Composite scaffolds with different proportions of hydroxyapatite (HA) and collagen (COL) produced different bone induction results. OBJECTIVE To examine the composite scaffolds with optimal proportion of HA and COL to achieve earlier bone induction and maximum bone formation. METHODS Composite scaffolds with the HA/COL weight ratio of 7:3, 3:7, 5:5 and 9:1 were prepared, as HA powder was added to collagen solution at 130℃ for 48 h. Then, the composites with different proportions of HA/COL were implanted into the extraction socket of right upper central incisor of C57BL/6 J mice. The bone formation of the extraction socket was observed by Hematoxylin-eosin (HE) and Masson-trichrome (Masson) staining at 1 and 2 weeks after operation. Five weeks later, the bone formation of extraction socket was observed by micro computed tomography (micro-CT). After MC3T3-E1 cells were co-cultured with materials of different proportions for 3 days, the number of cells attached on the surface of the materials and entering the materials were counted, and the expression of osteogenic related genes (Runx2, Ocn. Osx and Alp) was detected by reverse transcription polymerase chain reaction (RT-PCR). The composite scaffolds with different proportion of HA/COL with and without mouse bone marrow mesenchymal stem cells (BMMSCs) were implanted into the back of adult mice and cultured subcutaneously for 30 days, and observed histologically by HE and Masson staining. RESULTS After one week implantation with the composite HA/COL scaffolds with the weight ratio of 7:3, 3:7, 5:5 and 9:1, there was no new bone formation in the extraction socket in mouse. However, two weeks later, new bone was firstly observed in the tooth socket with the composite HA/COL scaffolds of 7:3. 5 weeks later, micro-CT scanning showed that the total amount of newly formed bone, trabecular width and bone mineral density of the HA/COL scaffolds of 7:3 were higher than the other HA/COL scaffolds (P < 0.05). After MC3T3-E1 cells were co-cultured with different composite HA/COL scaffolds for 3 days. The number of cells on the surface and inside of the HA/COL scaffolds of 7:3 was more than the other materials, and the difference was statistically significant (P < 0.05). The expression levels of Ocn and Osx of MC3T3-E1 cells were also the highest in the HA/COL scaffolds of 7:3 (P < 0.01). Bone formation was observed in the composite HA/COL scaffold of 7:3 with BMMSCs subcutaneously in mouse for 30 days, while only osteoid formation was observed in the same scaffold without BMMSCs. but bone formation was not detected in the other proportions of the HA/COL scaffolds. SIGNIFICANCE Compared with other proportions of HA/COL, the composite HA/COL scaffolds of 7:3 has stronger ability to promote bone formation, recruit osteoblasts to attach and enter into the scaffolds, and promote the osteogenesis of BMMSCs.
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Affiliation(s)
- Mingming Ou
- Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China; Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Xiaofeng Huang
- Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China; Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
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14
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Saulacic N, Fujioka-Kobayashi M, Kimura Y, Bracher AI, Zihlmann C, Lang NP. The effect of synthetic bone graft substitutes on bone formation in rabbit calvarial defects. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:14. [PMID: 33475862 PMCID: PMC7819904 DOI: 10.1007/s10856-020-06483-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 12/18/2020] [Indexed: 05/05/2023]
Abstract
The aim of this study was to evaluate the influence of the intensity of the biomimetic hydroxyapatite (HA) coating of α-tricalcium phosphate (α-TCP) on biomaterial degradation and bone formation. Twenty-four female NZW rabbits of approximately 12 weeks of age were used. Critical size defects were randomly treated with 3%:97% HA:α-TCP (BBCP1), 12%:88% HA:α-TCP (BBCP2), and 23%:77% HA:α-TCP (BBCP3), respectively or sham. All defects were covered with a resorbable collagen membrane. Animals were euthanized after 3 and 12 weeks of healing and samples were investigated by micro-CT and histologic analysis. Ingrowth of newly formed woven bone from the original bone at 3-week healing period was observed in all samples. At the 12-week healing period, the new bone in the peripheral area was mainly lamellar and in the central region composed of both woven and lamellar bone. New bony tissue was found on the surface of all three types of granules and at the interior of the BBCP1 granules. Samples with 3% HA showed significantly less residual biomaterial in comparison to the other two groups. Furthermore, BBCP1 significantly promoted new bone area as compared to other three groups and more bone volume as compared to the control. Within its limitations, this study indicated the highest degradation rate in case of BBCP1 concomitant with the highest rate of bone formation. Hence, formation of new bone can be affected by the level of biomimetic HA coating of α-TCP.
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Affiliation(s)
- Nikola Saulacic
- Department of Cranio-Maxillofacial Surgery, Faculty of Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
| | - Masako Fujioka-Kobayashi
- Department of Cranio-Maxillofacial Surgery, Faculty of Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Yasushi Kimura
- Department of Cranio-Maxillofacial Surgery, Faculty of Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department of Oral and Maxillofacial Surgery, National Defense Medical College Hospital, Saitama, Japan
| | - Ava Insa Bracher
- Department of Cranio-Maxillofacial Surgery, Faculty of Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | | | - Niklaus P Lang
- Department of Cranio-Maxillofacial Surgery, Faculty of Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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15
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Intapibool P, Monmaturapoj N, Nampuksa K, Thongkorn K, Khongkhunthian P. Bone regeneration of a polymeric sponge technique-Alloplastic bone substitute materials compared with a commercial synthetic bone material (MBCP+TM technology): A histomorphometric study in porcine skull. Clin Exp Dent Res 2021; 7:726-738. [PMID: 33410285 PMCID: PMC8543482 DOI: 10.1002/cre2.394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 12/13/2020] [Accepted: 12/17/2020] [Indexed: 11/23/2022] Open
Abstract
Background Polymeric sponge technique is recommended for developing the desired porosity of Biphasic calcium phosphate (BCP) which may favor bone regeneration. Purpose To investigate the healing of BCP with ratio of HA30/β‐TCP70 (HA30) and HA70/β‐TCP30 (HA70) polymeric sponge preparation, compare to commercial BCP (MBCP+TM). Materials and Methods Materials were tested X‐ray diffraction (XRD) pattern and scanning electron microscope (SEM) analysis. In eight male pigs, six calvarial defects were created in each subject. The defects were the filled with 1 cc of autogenous bone, MBCP+TM (MBCP), HA30, HA70, and left empty (negative group). The new bone formations, residual material particles and bone‐to‐graft contacts were analyzed at 4, 8, 12 and 16 weeks. Results Fabricated BCP showed well‐distributed porosity. At 16 weeks, new bone formations were 45.26% (autogenous), 33.52% (MBCP), 24.34% (HA30), 19.43% (HA70) and 3.37% (negative). Residual material particles were 1.88% (autogenous), 17.58% (MBCP), 26.74% (HA30) and 37.03% (HA70). These values were not significant differences (Bonferroni correction <0.005). Bone‐to‐graft contacts were 73.68% (MBCP), which was significantly higher than 41.68% (HA30) and 14.32% (HA70; Bonferroni correction <0.017). Conclusions Polymeric sponge technique offers well‐distributed porosity. The new bone formation and residual material particles were comparable to MBCP+TM, but the bone‐to‐graft contact was lower than MBCP+TM.
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Affiliation(s)
- Punyada Intapibool
- Faculty of Dentistry, Center of Excellence for Dental Implantology, Chiang Mai University, Chiang Mai, Thailand
| | | | | | - Kriangkrai Thongkorn
- Faculty of Veterinary Medicine, Department of Companion Animal and Wildlife Clinic, Chiang Mai University, Chiang Mai, Thailand
| | - Pathawee Khongkhunthian
- Faculty of Dentistry, Center of Excellence for Dental Implantology, Chiang Mai University, Chiang Mai, Thailand
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Synthesis of Conductive Carbon Aerogels Decorated with β-Tricalcium Phosphate Nanocrystallites. Sci Rep 2020; 10:5758. [PMID: 32238872 PMCID: PMC7113289 DOI: 10.1038/s41598-020-62822-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 03/16/2020] [Indexed: 01/13/2023] Open
Abstract
There has been substantial interest in research aimed at conductive carbon-based supports since the discovery that the electrical stimulus can have dramatic effect on cell behavior. Among these carbon-aerogels decorated with biocompatible polymers were suggested as future materials for tissue engineering. However, high reaction temperatures required for the synthesis of the aerogels tend to impair the stability of the polymeric networks. Herein, we report a synthetic route towards carbon-aerogel scaffolds decorated with biocompatible ceramic nanoparticles of tricalcium phosphate. The composites can be prepared at temperature as high as 1100 °C without significant effect on the morphology of the composite which is comparable with the original aerogel framework. Although the conductivity of the composites tends to decrease with the increasing ceramic content the measured conductivity values are similar to those previously reported on polymer-functionalized carbon-aerogels. The cell culture study revealed that the developed constructs support cell proliferation and provide good cell attachment suggesting them as potentially good candidates for tissue-engineering applications.
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17
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Effects of additional collagen in biphasic calcium phosphates: a study in a rabbit calvaria. Clin Oral Investig 2020; 24:3093-3103. [PMID: 31953682 DOI: 10.1007/s00784-019-03181-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/19/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVES Biphasic calcium phosphates (BCP) are synthetic biomaterials developed as an alternative to the autogenous bone grafts and xenografts. The aim of the present study was to assess the influence of the addition of collagen onto the BCP resorption rate and bone formation. MATERIAL AND METHODS Eighteen male NWZ rabbits approximately 12 weeks of age were used. Critical size defects were randomly treated with bilayered BCP materials comprising 12% HA and 88% α-TCP with and without collagen or sham-operated, respectively. All defects were covered with a resorbable collagen membrane. Animals were euthanized after 3 and 12 weeks of healing and investigated by micro-CT, histologic, and histomorphometric analysis. RESULTS Woven bone formation was observed from the original bone at 3-week healing in all samples. After 3 months, mainly lamellar new bone in the peripheral area was observed. In the central region, both woven and lamellar bone were seen. Samples containing collagen showed less residual biomaterial than without collagen at both healing periods. Both types of granules were in close contact with new bone, yielding a complete defect closure at 3 months of healing. However, new bone volume and area was similar for both biomaterials. CONCLUSIONS Within its limitations, the study results qualify collagen as a biocompatible carrier for BCPs. The presence of collagen indicated neither significant impact on the resorption of the BCPs nor on bone formation. CLINICAL RELEVANCE The addition of collagen to BCPs might not be beneficial for the augmentation of extended bone deficiencies.
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Pei B, Wang W, Dunne N, Li X. Applications of Carbon Nanotubes in Bone Tissue Regeneration and Engineering: Superiority, Concerns, Current Advancements, and Prospects. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1501. [PMID: 31652533 PMCID: PMC6835716 DOI: 10.3390/nano9101501] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/10/2019] [Accepted: 10/17/2019] [Indexed: 12/19/2022]
Abstract
With advances in bone tissue regeneration and engineering technology, various biomaterials as artificial bone substitutes have been widely developed and innovated for the treatment of bone defects or diseases. However, there are no available natural and synthetic biomaterials replicating the natural bone structure and properties under physiological conditions. The characteristic properties of carbon nanotubes (CNTs) make them an ideal candidate for developing innovative biomimetic materials in the bone biomedical field. Indeed, CNT-based materials and their composites possess the promising potential to revolutionize the design and integration of bone scaffolds or implants, as well as drug therapeutic systems. This review summarizes the unique physicochemical and biomedical properties of CNTs as structural biomaterials and reinforcing agents for bone repair as well as provides coverage of recent concerns and advancements in CNT-based materials and composites for bone tissue regeneration and engineering. Moreover, this review discusses the research progress in the design and development of novel CNT-based delivery systems in the field of bone tissue engineering.
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Affiliation(s)
- Baoqing Pei
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China.
| | - Wei Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China.
| | - Nicholas Dunne
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland.
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China.
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Bighetti ACC, Cestari TM, Santos PS, Arantes RVN, Paini S, Assis GF, Costa BC, de Oliveira FA, Tokuhara CK, de Oliveira RC, Taga R. In vitro and in vivo assessment of CaP materials for bone regenerative therapy. The role of multinucleated giant cells/osteoclasts in bone regeneration. J Biomed Mater Res B Appl Biomater 2019; 108:282-297. [PMID: 31009176 DOI: 10.1002/jbm.b.34388] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 03/22/2019] [Accepted: 03/30/2019] [Indexed: 12/15/2022]
Abstract
In this work, bone formation/remodeling/maturation was correlated with the presence of multinucleated giant cells (MGCs)/osteoclasts (tartrate-resistant acid phosphatase [TRAP]-positive cells) on the surface of beta-tricalcium phosphate (β-TCP), sintered deproteinized bovine bone (sDBB), and carbonated deproteinized bovine bone (cDBB) using a maxillary sinus augmentation (MSA) in a New Zealand rabbit model. Microtomographic, histomorphometric, and immunolabeling for TRAP-cells analyses were made at 15, 30, and 60 days after surgery. In all treatments, a faster bone formation/remodeling/maturation and TRAP-positive cells activity occurred in the osteotomy region of the MSA than in the middle and submucosa regions. In the β-TCP, the granules were rapidly reabsorbed by TRAP-positive cells and replaced by bone tissue. β-TCP enabled quick bone regeneration/remodeling and full bone and marrow restoration until 60 days, but with a significant reduction in MSA volume. In cDBB and sDBB, the quantity of TRAP-positive cells was smaller than in β-TCP, and these cells were associated with granule surface preparation for osteoblast-mediated bone formation. After 30 days, more than 80% of granule surfaces were surrounded and integrated by bone tissue without signs of degradation, preserving the MSA volume. Overall, the materials tested in a standardized preclinical model led to different bone formation/remodeling/maturation within the same repair process influenced by different microenvironments and MGCs/osteoclasts. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 108B:282-297, 2020.
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Affiliation(s)
- Ana Carolina Cestari Bighetti
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Tania Mary Cestari
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Paula Sanches Santos
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Ricardo Vinicius Nunes Arantes
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Suelen Paini
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Gerson Francisco Assis
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Bruna Carolina Costa
- Physics Department, Advanced Materials Laboratory, São Paulo State University, UNESP, Avenue Luiz Edmundo Carrijo Coube 14-01, Bauru, São Paulo, 17033-360, Brazil
| | - Flávia Amadeu de Oliveira
- Laboratory of Biochemistry of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Cintia Kazuko Tokuhara
- Laboratory of Biochemistry of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Rodrigo Cardoso de Oliveira
- Laboratory of Biochemistry of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Rumio Taga
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
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Pahlevanzadeh F, Ebrahimian-Hosseinabadi M. Poly (Methyl Methacrylate)/Biphasic Calcium Phosphate/Nano Graphene Bone Cement for Orthopedic Application. JOURNAL OF MEDICAL SIGNALS & SENSORS 2019; 9:33-41. [PMID: 30967988 PMCID: PMC6419566 DOI: 10.4103/jmss.jmss_34_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background: The aim of this study was to make a bioactive bone cement based on poly (methyl methacrylate) (PMMA) with suitable mechanical properties. Methods: PMMA has been modified by fabricating a composite consisting of biphasic calcium phosphate (BCP) 68 wt%, PMMA 31 wt% and graphene (Gr) 1 wt% (PMMA/BCP/Gr), 32 wt% of PMMA, and 68 wt% of BCP (PMMA/BCP) and pure PMMA by milling, mixing with monomer liquid, and casting. The modified cements were evaluated regarding mechanical properties, bioactivity, degradation rate, and biocompatibility. Results: The scanning electron microscopy (SEM) images of hydroxyapatite (HA) formed on samples surface after 28 days of immersion in simulated body fluid (SBF) demonstrated that bioactivity was obtained due to the addition of BCP, and the degradation rate of the cement was enhanced as well. Investigations of mechanical properties revealed that BCP increased the elastic modulus of PMMA more than 1.5 times, but predictably decreased elongation. The addition of 1 wt% Gr increased elongation and yield strength from 16.39% ± 1.02% and 61.67 ± 1.52 Mpa for PMMA/BCP to 35.18% ± 2.42% and 78.40 ± 2.06 Mpa for PMMA/BCP/Gr, respectively. MG63 cells survival and proliferation improved from 127.55% ± 7.03% for PMMA to 201.41% ± 10.7% for PMMA/BCP/Gr on Day 4 of culture. Conclusion: According to the obtained results of mechanical and biological tests, it seems that new PMMA/BCP/Gr bone cement has a potentiality for usage in orthopedic applications.
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Affiliation(s)
- Farnoosh Pahlevanzadeh
- Department of Tissue Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
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Pomini KT, Cestari TM, Santos German ÍJ, de Oliveira Rosso MP, de Oliveira Gonçalves JB, Buchaim DV, Pereira M, Andreo JC, Rosa GM, Della Coletta BB, Cosin Shindo JVT, Buchaim RL. Influence of experimental alcoholism on the repair process of bone defects filled with beta-tricalcium phosphate. Drug Alcohol Depend 2019; 197:315-325. [PMID: 30875652 DOI: 10.1016/j.drugalcdep.2018.12.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 12/03/2018] [Accepted: 12/10/2018] [Indexed: 12/16/2022]
Abstract
This study evaluated the effect of ethanol on the repair in calvaria treated with beta-tricalcium phosphate (β-TCP). Forty rats were distributed into 2 groups: Water group (CG, n = 20) and Alcohol Group (AG, n = 20), which received 25% ethanol ad libitum after an adaptation period of 3 weeks. After 90 days of liquid diet, the rats were submitted to a 5.0 mm bilateral craniotomy in the parietal bones; the left parietal was filled with β-TCP (CG-TCP and AG-TCP) and the contralateral only with blood clot (CG-Clot and AG-Clot). The animals were killed after 10, 20, 40 and 60 days. The groups CG-Clot and AG-Clot showed similar pattern of bone formation with a gradual and significant increase in the amount of bone in CG-Clot (22.17 ± 3.18 and 34.81 ± 5.49) in relation to AG-Clot (9.35 ± 5.98 and 21.65 ± 6.70) in periods of 20-40 days, respectively. However, in the other periods there was no statistically significant difference. Alcohol ingestion had a negative influence on bone formation, even with the use of β-TCP, exhibiting slow resorption and replacement by fibrous tissue, with 16% of bone formation within 60 days in AG-TCP, exhibiting immature bone tissue with predominance of disorganized collagen fibers. Defects in CG-TCP showed bone tissue with predominance of lamellar arrangement filling 39% of the original defect. It can be concluded that chronic ethanol consumption impairs the ability to repair bone defects, even with the use of a β-TCP biomaterial.
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Affiliation(s)
- Karina Torres Pomini
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil.
| | - Tânia Mary Cestari
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil.
| | | | | | | | - Daniela Vieira Buchaim
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil; Medical School, University of Marilia (UNIMAR), Marília, Brazil; Medical School, University Center of Adamantina (UNIFAI), Adamantina, Brazil.
| | - Mizael Pereira
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil.
| | - Jesus Carlos Andreo
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil.
| | - Geraldo Marco Rosa
- University of the Sacred Heart (USC), Bauru, Brazil; University of the Ninth of July (UNINOVE), Bauru, Brazil.
| | - Bruna Botteon Della Coletta
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil.
| | | | - Rogério Leone Buchaim
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil; Medical School, University of Marilia (UNIMAR), Marília, Brazil.
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Pae HC, Kang JH, Cha JK, Lee JS, Paik JW, Jung UW, Choi SH. Bone regeneration using three-dimensional hexahedron channel structured BCP block in rabbit calvarial defects. J Biomed Mater Res B Appl Biomater 2019; 107:2254-2262. [PMID: 30675991 DOI: 10.1002/jbm.b.34317] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/21/2018] [Accepted: 12/27/2018] [Indexed: 11/10/2022]
Abstract
The purpose of this study is to evaluate the efficacy of bone regeneration and volume maintenance of the three-dimensional (3D) structured biphasic calcium phosphate (BCP) block with porous hexahedron channels in a rabbit calvarial model. In this work, four circular defects (diameter: 8 mm) in calvarium of rabbits were randomly assigned to (1) negative control (control), (2) 3D hexahedron channel structured BCP block, (3) deproteinized bovine bone mineral particle, and (4) deproteinized porcine bone mineral particle. Animals were euthanized at 2 (n = 5) and 8 weeks (n = 5). Outcome measures included micro-computed tomography (CT) and histomorphometrical analysis. Results indicated that in micro-CT, BCP group showed the highest new bone volume with significant difference compared to control (p = 0.008) at 8 weeks. Histomorphometrically, total augmented area of BCP group was the highest with significant difference compared to control (p = 0.008) at 8 weeks. BCP group also maintained total volume of the original defect without collapsing. BCP block with 3D hexahedron channel structure seems to have favorable osteogenic and volume maintaining ability and highly porous structure might attribute to new bone formation. Further studies regarding the optimal internal structure and porosity of the BCP block bone substitute are needed. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 2254-2262, 2019.
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Affiliation(s)
- Hyung-Chul Pae
- Department of periodontology, Research institute of periodontal regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Joo-Hyun Kang
- Department of periodontology, Research institute of periodontal regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jae-Kook Cha
- Department of periodontology, Research institute of periodontal regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jung-Seok Lee
- Department of periodontology, Research institute of periodontal regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jeong-Won Paik
- Department of periodontology, Research institute of periodontal regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Ui-Won Jung
- Department of periodontology, Research institute of periodontal regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Seong-Ho Choi
- Department of periodontology, Research institute of periodontal regeneration, Yonsei University College of Dentistry, Seoul, South Korea
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ARONI MAT, COSTA NETO PFD, OLIVEIRA GJPLD, MARCANTONIO RAC, MARCANTONIO JUNIOR E. Bone repair induced by different bone graft substitutes in critical-sized defects in rat calvaria. REVISTA DE ODONTOLOGIA DA UNESP 2019. [DOI: 10.1590/1807-2577.04119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Introduction The use of bone substitutes in grafting procedures as an alternative of the use of autogenous bone graft has been indicated, however, the direct comparison between these biomaterials has been little explored. Objective To evaluate the effect of different osteoconductive bone substitutes on the bone repair in critical-sized defects (CSDs) in rat calvaria. Material and method One CSD with an 8 mm diameter was made in each of the 40 rats used in this study. The animals were randomly allocated into 5 groups (n=8), according to the type of bone substitute used to fill the CSD: COA (Coagulum); AUT (autogenous bone); DBB (deproteinized bovine bone graft); HA/TCP (biphasic ceramic composed of hydroxyapatite and β-phosphate tricalcium); and TCP (β-phosphate tricalcium). A microtomographic analysis was performed to evaluate the remaining defect linear length (DLL) of the CSD and the volume of the mineralized tissues (MT) within the CSD at 3, 7, 15 and 30 days after the surgical procedure. In addition, a histometric analysis was performed to evaluate the composition of the repaired bone tissue (% Bone and % Biomaterial) at the 30-day period. Result It was shown that the COA had the lowest DLL and MT within the CSD. In addition, the COA presented the highest % of bone in CSD. The DBB had a higher MT and a higher % of bone substitute particles in the CSD than the AUT and TCP groups. The DBB and AUT groups presented higher % of bone in the CSD than the TCP group. Conclusion The use of the DBB promoted a better pattern of bone volume gain and formation compared to TCP and HA / TCP but was biologically inferior to the AUT.
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Pae H, Kang J, Cha J, Lee J, Paik J, Jung U, Kim B, Choi S. 3D‐printed polycaprolactone scaffold mixed with β‐tricalcium phosphate as a bone regenerative material in rabbit calvarial defects. J Biomed Mater Res B Appl Biomater 2018; 107:1254-1263. [DOI: 10.1002/jbm.b.34218] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/23/2018] [Accepted: 08/02/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Hyung‐Chul Pae
- Department of Periodontology, Research Institute of Periodontal RegenerationYonsei University College of Dentistry Seoul South Korea
| | - Joo‐Hyun Kang
- Department of Periodontology, Research Institute of Periodontal RegenerationYonsei University College of Dentistry Seoul South Korea
| | - Jae‐Kook Cha
- Department of Periodontology, Research Institute of Periodontal RegenerationYonsei University College of Dentistry Seoul South Korea
| | - Jung‐Seok Lee
- Department of Periodontology, Research Institute of Periodontal RegenerationYonsei University College of Dentistry Seoul South Korea
| | - Jeong‐Won Paik
- Department of Periodontology, Research Institute of Periodontal RegenerationYonsei University College of Dentistry Seoul South Korea
| | - Ui‐Won Jung
- Department of Periodontology, Research Institute of Periodontal RegenerationYonsei University College of Dentistry Seoul South Korea
| | - Byung‐Hoon Kim
- Department of Dental Materials, School of DentistryChosun University Gwangju 61452 Republic of Korea
| | - Seong‐Ho Choi
- Department of Periodontology, Research Institute of Periodontal RegenerationYonsei University College of Dentistry Seoul South Korea
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Houshmand B, Tabibzadeh Z, Motamedian SR, Kouhestani F. Effect of metformin on dental pulp stem cells attachment, proliferation and differentiation cultured on biphasic bone substitutes. Arch Oral Biol 2018; 95:44-50. [PMID: 30048855 DOI: 10.1016/j.archoralbio.2018.07.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/16/2018] [Accepted: 07/17/2018] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To evaluate to the effect of metformin on attachment of human dental pulp stem cells (hDPSCs) and their proliferation and osteogenic differentiation on biphasic hydroxyapatite/beta-tricalcium phosphate granules of macro-porous biphasic calcium phosphate (MBCP). MATERIALS AND METHODS This in vitro study included four groups: A:hDPSCs + MBCP + Metfromin, B:hDPSCs + MBCP, C:hDPSCs + Metformin and D:hDPSCs (control). Attachment of hDPSCs to bone granules in groups A and B was observed by scanning electron microscopy on days 1 and 7 of cultivation. Cell viability was assessed by MTT assay on days 1, 3, and 7 after cell seeding. Differentiation of the hDPSCs was assessed by measurement of alkaline phosphatase activity on days 3, 7, 14 and 21 after cell culturing in standard and osteogenic media. The data was analyzed by two-way ANOVA at a significance level of p = 0.05. RESULTS The hDPSCs had firmly attached to the surface of MBCP granules, especially in group A. The MTT values increased in all groups from day 1 to day 7 (p < 0.001). The highest MTT values were observed in group C followed by the control group and groups A and B (p < 0.001). Alkaline phosphatase activity also increased in all groups between days 3 to 21 (p < 0.001) except between days 7 and 14 in standard media (p = 0.094). In standard media, groups with MBCP granules (A and B) showed higher activity (p < 0.05). In osteogenic media, the groups with metformin (A and C) showed higher alkaline phosphatase activity (p < 0.05). CONCLUSION This in vitro study showed that 100 Mol/L metformin increased attachment and proliferation of hDPSCs on biphasic granules. Osteogenic differentiation of hDPSCs also increased in the presence of metformin.
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Affiliation(s)
- Behzad Houshmand
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zohreh Tabibzadeh
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeed Reza Motamedian
- Department of Orthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farnaz Kouhestani
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Kouhestani F, Dehabadi F, Hasan Shahriari M, Motamedian SR. Allogenic vs. synthetic granules for bone tissue engineering: an in vitro study. Prog Biomater 2018; 7:133-141. [PMID: 30019188 PMCID: PMC6068052 DOI: 10.1007/s40204-018-0092-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 07/07/2018] [Indexed: 10/28/2022] Open
Abstract
The aim of this study was to compare human dental pulp stem cells' (DPSCs) attachment, proliferation and osteogenic differentiation on allogenic and synthetic biphasic bone granules. In this in vitro study, two types of bone granules were used: allograft [freeze-dried bone allograft (FDBA)] and biphasic granules [hydroxyapatite/beta-tricalcium phosphate (HA/β-TCP)]. By isolation of DPSCs, their attachment to bone granules was observed by scanning electron microscope (SEM) at day 1 and 7 of cultivation. Vital cells were measured by MTT assay at 1, 3, and 7 days of cell culture. Comparison of vital cells at different time points was considered as cell proliferation. Finally, differentiation of DPSCs was evaluated by measurement of alkaline phosphatase (ALP) activity 3, 7, 14, and 21 days after cell seeding in standard and osteogenic media. Data were analyzed using two-way ANOVA with a significant level of 0.05. Attachment of DPSCs on FDBA granules seemed relatively stronger. The number of cells (based on MTT values) and ALP activity of the cells cultured on both study groups increased between time points (p ≤ 0.001). FDBA granules had more cells compared to HA/β-TCP granules (p < 0.001). There was no significant difference between ALP activity of two study groups cultured in the standard medium (p = 0.347) and they were both higher than the control group (p < 0.05). In the osteogenic medium, FDBA group had significantly higher ALP activity compared to HA/β-TCP (p = 0.035) and control (p = 0.001) groups while there was no significant difference between ALP activity of HA/β-TCP and control groups (p = 0.645). In conclusion, current in vitro study revealed that FDBA granules have more potential in supporting DPSCs attachment and proliferation and inducing their ALP activity compared to HA/β-TCP granules. Therefore, FDBA could serve as a proper bone substitute material.
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Affiliation(s)
- Farnaz Kouhestani
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farnaz Dehabadi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehrnoosh Hasan Shahriari
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeed Reza Motamedian
- Department of Orthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Dallabrida AL, Camargo NH, Moraes AN, Gava A, Dalmônico GM, Costa BD, Oleskovicz N. Caracterização de biocerâmica de fosfatos de cálcio microestruturada em diferentes composições em ovinos. PESQUISA VETERINÁRIA BRASILEIRA 2018. [DOI: 10.1590/1678-5150-pvb-4930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
RESUMO: As biocerâmicas microporosas de fosfatos de cálcio e bifásicas de hidroxiapatita e fosfato tricálcico beta (HA/TCP-β) na forma de biomateriais granulados microporosos, são temas de pesquisas e se destacam como substitutos ósseos em aplicações biomédicas. As biocerâmicas bifásicas são biocompatíveis, bioativas, osteoindutoras e promovem a osteointegração, quando aplicados in vivo ou em meio simulado. Outro ponto diferencial dessas biocerâmicas está associado à capacidade de solubilidade que esses biomateriais apresentam quando aplicados em meio biológico, permitindo a liberação gradual de íons cálcio e fosfatos para o meio biológico, estes são absorvíeis e promovem a neoformação de um novo tecido ósseo. As biocerâmicas bifásicas de fosfatos de cálcio também se apresentam promissores em aplicações traumatológicas na reparação do tecido ósseo traumatizado e na liberação controlada de medicamentos, em tratamentos da estrutura óssea. O desempenho desses biomateriais como substitutos ósseos e na liberação controlada de medicamentos, estão associados, as suas características físicas, químicas, morfológicas e de superfície. O objetivo desse estudo foi realizar a caracterização morfológica, microestrutural dos biomateriais pela técnica de microscopia eletrônica de varredura (MEV), física com difratometria de raios X (DRX) e método de Arthur para determinação da porosidade aberta. A densidade teórica dos biomateriais bifásicos foi determinada pelo método teórico das concentrações bifásicas. Por fim, se realizou avaliação do comportamento da neoformação óssea e osteointegração dos diferentes biomateriais de fosfatos de cálcio em testes in vivo em ovinos. Os testes in vivo foram realizados em tíbias de ovinos com tempo de implantação de 03 meses. Os biomateriais implantados foram hidroxiapatita (HA), fosfato tricálcico-β (TCP-β) e composições bifásicas HA/TCP-β nas proporções: 80/20, 20/80, 70/30 e 30/70. Foram utilizadas 08 ovelhas mestiças Texel, com 12 meses de idade e peso médio de 30 kg (±5 kg), nas quais foram produzidos três defeitos ósseos em cada tíbia, sendo que quatro desses defeitos foram preenchidos por biomateriais, e dois por fragmentos ósseos (autoenxerto), grupo controle. Os animais foram eutanasiados aos 03 meses após a implantação dos biomateriais. Após a eutanásia, foram coletadas as tíbias para avaliação com o uso da técnica de microscopia eletrônica de varredura (MEV). Os resultados encontrados mostram que os biomateriais granulados microporosos são formados por uma morfologia irregular com tamanho de grânulos entre 200 μm e 500μm, outra constatação foi microestrutura microporosa interconectada dos biomateriais. O resultado obtido da porosidade aberta mostrou que os biomateriais apresentam porosidade superior a 68%. A densidade teórica se apresentou semelhante entre os biomateriais granulados de fosfatos de cálcio e sugerem boa capacidade de neoformação óssea para todos os biomateriais, sendo que o bifásico 20/80 apresentou absorção do biomaterial e neoformação óssea mais rápida quando comparada com os outros biomateriais avaliados neste estudo.
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Affiliation(s)
| | | | | | - Aldo Gava
- Universidade do Estado de Santa Catarina, Brazil
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28
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PADOVAN LEM, GARCIA E SOUSA D, PADOVAN SHM, LOPES DE OLIVEIRA GJP, SILVA RDD, CLAUDINO M. Histological analysis of the use of biphasic ceramics based on hydroxyapatite and β-tricalcium phosphate in maxillary sinus floor elevation surgery: pilot study. REVISTA DE ODONTOLOGIA DA UNESP 2018. [DOI: 10.1590/1807-2577.10917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Objective To evaluate the bone repair associated with the use of biphasic ceramics based on hydroxyapatite and β-tricalcium phosphate (HA/TCP) in the procedures of maxillary sinus membrane elevation in human beings. Material and method Ten patients with a residual bone ridge in the posterior maxillary region between 3 mm and 5 mm in height were selected and indicated for procedures of bone grafting associated with maxillary sinus lift procedure. The maxillary sinuses were filled with HA/TCP, and after 8 months, the implants were implanted and a bone biopsy was collected with the aid of a trephine drill, which was then submitted to histological analysis for the evaluation of the composition of the grafted area. Result The histological description analysis of the biopsies revealed the presence of vital and immature bone tissue, juxtaposed to the biomaterial. Histomorphometric analysis showed that the biopsy composition was in average 28.8%, 27.4%, and 43.6% of bone tissue, biomaterial, and soft tissue, respectively. Conclusion The areas grafted with HA/TCP presented the adequate amount of bone formation that allowed the implantation of the implants. The success of the grafting procedure with this biomaterial was associated with its osteoconduction potential that allowed the formation of bone tissue in close contact with HA/TCP.
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Helder MN, van Esterik FAS, Kwehandjaja MD, Ten Bruggenkate CM, Klein-Nulend J, Schulten EAJM. Evaluation of a new biphasic calcium phosphate for maxillary sinus floor elevation: Micro-CT and histomorphometrical analyses. Clin Oral Implants Res 2018; 29:488-498. [PMID: 29638012 PMCID: PMC6001541 DOI: 10.1111/clr.13146] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2018] [Indexed: 12/03/2022]
Abstract
Objectives Synthetic biphasic calcium phosphate (BCP) with a hydroxyapatite/ß‐tricalcium phosphate (HA/ß‐TCP) ratio of 60/40 (BCP60/40) is successfully used as alternative for autologous bone in patients undergoing maxillary sinus floor elevation (MSFE) for dental implant placement. A high percentage of HA in BCP60/40 may hamper efficient scaffold remodeling. Osteogenesis and neovascularization are pivotal in effective bone regeneration. We aimed to investigate whether differences exist in osteogenic and/or vasculogenic potential of BCP60/40 and BCP20/80 in patients undergoing MSFE. Materials and methods Twenty patients undergoing MSFE were treated with BCP60/40 (n = 10) or BCP20/80 (n = 10). Bone and graft volumes were determined by micro‐computed tomography and histomorphometrical analysis of biopsies of the augmented region. Osteoid volumes, number of osteoclasts, and blood vessels were determined by histomorphometrical analysis. The biopsies were taken 6.5 months (26 weeks) postoperatively prior to dental implant placement. Results Bone and osteoid volumes were 9.7% and 0.8% higher at the most cranial side of the BCP20/80 biopsies compared to the BCP60/40 biopsies. Graft volumes, number of osteoclasts, and blood vessels were similar in both groups. Conclusions BCP20/80 showed enhanced osteogenic potential in patients undergoing MSFE compared to BCP60/40, due to either a faster bone remodeling rate or an earlier start of bone formation in BCP20/80‐treated patients, suggesting that a higher TCP content positively contributes to the bone remodeling rate. Therefore, BCP20/80 might perform better, at least in the short term, as a scaffold for bone augmentation in the MSFE model than BCP60/40 as more bone is formed, and more osteoid is deposited at the cranial side in BCP20/80‐treated patients compared to BCP60/40‐treated patients. However, catch‐up of BCP60/40 in the long term cannot be ruled out.
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Affiliation(s)
- Marco N Helder
- Department of Oral and Maxillofacial Surgery, VU University Medical Center/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Department of Orthopedic Surgery, VU University Medical Center, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Fransisca A S van Esterik
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Department of Dental Materials Science, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Mardi D Kwehandjaja
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Christiaan M Ten Bruggenkate
- Department of Oral and Maxillofacial Surgery, VU University Medical Center/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Jenneke Klein-Nulend
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Engelbert A J M Schulten
- Department of Oral and Maxillofacial Surgery, VU University Medical Center/Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Amsterdam, The Netherlands
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Hanke A, Bäumlein M, Lang S, Gueorguiev B, Nerlich M, Perren T, Rillmann P, Ryf C, Miclau T, Loibl M. Long-term radiographic appearance of calcium-phosphate synthetic bone grafts after surgical treatment of tibial plateau fractures. Injury 2017; 48:2807-2813. [PMID: 29096930 DOI: 10.1016/j.injury.2017.10.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 10/17/2017] [Accepted: 10/18/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Synthetic bone grafts (SBGs) are widely used to fill bone defects after fracture reduction. This study assessed the long-term resorption of two different calcium phosphate products (A=ChronOS™ inject and B=Norian® SRS®; both DePuy Synthes, Oberdorf, Switzerland) used in the surgical treatment of tibial plateau fractures. DESIGN Long-term clinical and radiologic follow-up of 52 patients after surgical treatment of intraarticular tibial plateau fractures augmented with SBGs. SETTING The study was performed at a level 3 trauma center. PATIENTS Between January 2000 and December 2006 a total of 52 patients with intraarticular tibial plateau fractures were operatively treated and augmented with SBGs consisting of a Brushite matix with β-TCP granules (SBG A) or hydroxylapatite with 4-6% carbonate content (SBG B). 46 patients could be contacted and 38 were included in the study. Half of the patients received SBG A and the other half SBG B. MAIN OUTCOME MEASUREMENTS Loss of reduction and SBG resorption was investigated by comparison of follow-up X-ray images to pre- and postoperative X-ray images. Furthermore, pain, activity level and knee function were evaluated by means of questionnaires and clinical examination. RESULTS The mean age of patients was 59.7±12.5years. The follow-up was 8.6±0.9years for SBG A and 11.6±1.4years for SBG B (p<0.001). In most cases SBG A was completely resorbed in a homogenous pattern, while SBG B was still visible on the X-ray images revealing a peripheral resorption pattern. A loss of reduction (>2mm) could be observed in two patients with SBG A and two patients with SBG B, although only one of them had an impaired knee function. CONCLUSIONS The composite SBG A reveals a comprehensive long-term resorption in comparison to SBG B. Nevertheless, both provided suitable mechanical support as part of the surgical treatment of tibial plateau fractures. LEVEL OF EVIDENCE Case series, Level IV.
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Affiliation(s)
- Alexander Hanke
- Department of Orthopaedic Trauma Surgery, Spital Davos, Davos, Switzerland; Department of Trauma Surgery, Regensburg University Medical Center, Regensburg, Germany
| | - Martin Bäumlein
- Department of Orthopaedic Trauma Surgery, Spital Davos, Davos, Switzerland; Department of Trauma, Hand and Reconstructive Surgery, University Hospital Jena, Jena, Germany
| | - Siegmund Lang
- Department of Trauma Surgery, Regensburg University Medical Center, Regensburg, Germany
| | | | - Michael Nerlich
- Department of Trauma Surgery, Regensburg University Medical Center, Regensburg, Germany
| | - Thomas Perren
- Department of Orthopaedic Trauma Surgery, Spital Davos, Davos, Switzerland
| | - Paavo Rillmann
- Department of Orthopaedic Trauma Surgery, Spital Davos, Davos, Switzerland
| | - Christian Ryf
- Department of Orthopaedic Trauma Surgery, Spital Davos, Davos, Switzerland
| | - Theodore Miclau
- Department of Orthopaedic Surgery, Orthopaedic Trauma Institute, University of California, San Francisco, CA, United States
| | - Markus Loibl
- Department of Orthopaedic Trauma Surgery, Spital Davos, Davos, Switzerland; Department of Trauma Surgery, Regensburg University Medical Center, Regensburg, Germany.
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Pan Z, Jiang P, Xue S, Wang T, Li H, Wang J. Repair of a critical-size segmental rabbit femur defect using bioglass-β-TCP monoblock, a vascularized periosteal flap and BMP-2. J Biomed Mater Res B Appl Biomater 2017; 106:2148-2156. [PMID: 29024418 DOI: 10.1002/jbm.b.34018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 09/12/2017] [Accepted: 09/24/2017] [Indexed: 01/13/2023]
Abstract
Various synthetic bone substitutes are not suitable for reconstructing critical-size bone defects. This study tested whether a bioglass-β-tricalcium phosphate (β-TCP) monoblock is effective for repairing critical-size segmental bone defects if combined with a vascularized periosteal flap and bone morphogenetic protein (BMP)-2. A femoral osteotomy with a gap size of 20 mm was created and stabilized using a plate in 40 rabbits.The defect was left untreated (group A) or repaired using a monoblock (group B), a monoblock with a vascularized periosteal flap (group C), or a monoblock with a vascularized periosteal flap and BMP-2 (group D). Bone regeneration, vascularization and monoblock degradation were analyzed after four and eight weeks using x-ray, hematoxylin-eosin, CD34 immunohistochemical and Masson's trichrome staining observation and histometric evaluation. The radiographic grading score showed a time-dependent increase from weeks 4 to 8. At 8-week postoperative, the total new regenerated bone in groups C and D was 20.0 ± 0.3 and 55.5 ± 8.0 mm2 , respectively, which was significantly greater than in group B. Conversely, group D showed less residual monoblock than did group C. An increase in microvessel density was also observed in groups C and D compared with group B at 4 and 8 weeks postoperative, respectively. This study suggests that bioglass-β-TCP monoblock alone exhibits poor potential to repair a 20-mm femoral defect. However, supplementation with a vascularized periosteal flap and BMP-2 led to effective vascularization and reliable bone regeneration throughout the monoblock, with concordant material degradation in a timely manner. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2148-2156, 2018.
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Affiliation(s)
- Zhaohui Pan
- Orthopedics Institute of Chinese PLA, 89th Hospital, 256 Beigongxijie, Weifang, Shandong Province, People's Republic of China
| | - Pingping Jiang
- Orthopedics Institute of Chinese PLA, 89th Hospital, 256 Beigongxijie, Weifang, Shandong Province, People's Republic of China
| | - Shan Xue
- Orthopedics Institute of Chinese PLA, 89th Hospital, 256 Beigongxijie, Weifang, Shandong Province, People's Republic of China
| | - Tao Wang
- Orthopedics Institute of Chinese PLA, 89th Hospital, 256 Beigongxijie, Weifang, Shandong Province, People's Republic of China
| | - Hongfei Li
- Orthopedics Institute of Chinese PLA, 89th Hospital, 256 Beigongxijie, Weifang, Shandong Province, People's Republic of China
| | - Jianli Wang
- Orthopedics Institute of Chinese PLA, 89th Hospital, 256 Beigongxijie, Weifang, Shandong Province, People's Republic of China
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Sun YX, Zhang JF, Li DJ, Wu XM, Xu LL, Pan XH, Li G. Comparing the osteoconductive potential between tubular and cylindrical beta-tricalcium phosphate scaffolds: An experimental study in rats. J Biomed Mater Res B Appl Biomater 2017; 106:1934-1940. [DOI: 10.1002/jbm.b.34011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 09/11/2017] [Accepted: 09/17/2017] [Indexed: 01/13/2023]
Affiliation(s)
- Yu-Xin Sun
- Department of Orthopaedics and Traumatology; Bao-An District People's Hospital; Shenzhen People's Republic of China
- Department of Orthopaedics and Traumatology; Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital; Shatin Hong Kong SAR People's Republic of China
- The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong Shenzhen Research Institute; Shenzhen People's Republic of China
| | - Jin-Fang Zhang
- Key Laboratory of Orthopaedics and Traumatology; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, The First Clinical Medical College, Guangzhou University of Chinese Medicine; Guangzhou China
| | - Dong-Ji Li
- Department of Orthopaedics and Traumatology; Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital; Shatin Hong Kong SAR People's Republic of China
| | - Xiao-Min Wu
- Department of Orthopaedics and Traumatology; Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital; Shatin Hong Kong SAR People's Republic of China
| | - Liang-Liang Xu
- Department of Orthopaedics and Traumatology; Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital; Shatin Hong Kong SAR People's Republic of China
| | - Xiao-Hua Pan
- Department of Orthopaedics and Traumatology; Bao-An District People's Hospital; Shenzhen People's Republic of China
| | - Gang Li
- Department of Orthopaedics and Traumatology; Bao-An District People's Hospital; Shenzhen People's Republic of China
- Department of Orthopaedics and Traumatology; Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital; Shatin Hong Kong SAR People's Republic of China
- The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong Shenzhen Research Institute; Shenzhen People's Republic of China
- Key Laboratory for Regenerative Medicine; Ministry of Education, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong; Hong Kong SAR People' Republic of China
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da Silva de Oliveira JC, Luvizuto ER, Sonoda CK, Okamoto R, Garcia-Junior IR. Immunohistochemistry evaluation of BMP-2 with β-tricalcium phosphate matrix, polylactic and polyglycolic acid gel, and calcium phosphate cement in rats. Oral Maxillofac Surg 2017; 21:247-258. [PMID: 28389833 DOI: 10.1007/s10006-017-0624-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 03/29/2017] [Indexed: 06/07/2023]
Abstract
PURPOSE The installation of implants has become a routine procedure in the clinic. However, it takes time and adequate bone thickness, and for that, tissue engineering has made efforts to develop substitutes for autografts, in view of certain disadvantages of this material. The decision to choose the most suitable graft material for each case is an important step in the success of bone reconstruction. This study was to verify, by means of immunohistochemical study, that the addition of bone morphogenetic protein had some influence on biomaterials commercially available, taking into account the formation of mineralized tissue, bone replacement, and the amount of degradation of biomaterials. METHODS The sample consisted of 72 rats that were divided into eight treatment groups, in which two defects of 5 mm were made in each animal calvaria. Euthanasia was performed at 5, 15, and 30 days postop. RESULTS A histologic and histometric analysis was performed to quantitate the area of mineralized tissue formed, the area of newly formed bone, and the area of degradation of the biomaterials. Data were analyzed with multiple comparisons of means by Tukey contrasts, and significant difference was assigned at the level of P < 0.05. The proteins used for immunohistochemical analysis accounted for the process of formation, mineralization, and bone resorption and was performed using ordinal qualitative analysis, where from assigning scores. CONCLUSIONS Bone morphogenetic protein 2 was shown to be effective as an inducer of bone formation process independent biomaterial used mainly for accelerating the resorption process of the framework.
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Affiliation(s)
| | - Eloá Rodrigues Luvizuto
- Department of Surgery and Integrated Clinic, Araçatuba Dentistry School, São Paulo State University, Araçatuba, SP, Brazil
| | - Celso Koogi Sonoda
- Department of Surgery and Integrated Clinic, Araçatuba Dentistry School, São Paulo State University, Araçatuba, SP, Brazil
| | - Roberta Okamoto
- Department of Surgery and Integrated Clinic, Araçatuba Dentistry School, São Paulo State University, Araçatuba, SP, Brazil
| | - Idelmo Rangel Garcia-Junior
- Department of Surgery and Integrated Clinic, Araçatuba Dentistry School, São Paulo State University, Araçatuba, SP, Brazil
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Lim HC, Hong JY, Lee JS, Jung UW, Choi SH. Late-term healing in an augmented sinus with different ratios of biphasic calcium phosphate: a pilot study using a rabbit sinus model. J Periodontal Implant Sci 2016; 46:57-69. [PMID: 26937294 PMCID: PMC4771838 DOI: 10.5051/jpis.2016.46.1.57] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 01/28/2016] [Indexed: 11/08/2022] Open
Abstract
PURPOSE The aim of this pilot study was to determine the osteoconductivity and dimensional stability of augmented sinuses using different ratios of biphasic calcium phosphate (BCP) in a rabbit sinus model. METHODS Each sinus of New Zealand white rabbits (2.5-3.5 kg) was assigned to one of two groups: BCP with a hydroxyapatite to β-tricalcium phosphate (HA:β-TCP) ratio of 70:30 (group TCP30) and BCP with an HA:β-TCP ratio of 30:70 (group TCP70). After preparing a window in the antral wall of a sinus, the Schneiderian membrane was elevated, and the applicable material was grafted. A fluorochrome calcein green was injected five days before euthanizing the animals at four months post-surgery. The specimens were analyzed histologically, histomorphometrically, and by using micro-computed tomography (micro-CT). RESULTS Micro-CT analysis revealed that the total augmented volume and the new bone volume did not differ significantly between the two groups whereas the resorption of materials was greater in the TCP70 group. The trabecular thickness, number, and separation also did not differ significantly between the two groups. Histomorphometrically, the areas of total augmentation, new bone, and residual material, as well as the ratio of new-bone-material contact did not differ significantly between the groups. Histologically, the residual particles were more scattered in the TCP70 group than in the TCP30 group. The fluorescence of the calcein green did not differ notably between the two groups. CONCLUSIONS The osteoconductivity and dimensional stability of the two BCPs with different ratios tested in this study were comparable after four months of healing. Therefore, we conclude that both BCPs show promise as a bone substitute for sinus augmentation.
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Affiliation(s)
- Hyun-Chang Lim
- Department of Periodontology, Kyung Hee University School of Dentistry, Seoul, Korea
| | - Ji-Youn Hong
- Department of Periodontology, Kyung Hee University School of Dentistry, Seoul, Korea
| | - Jung-Seok Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Seong-Ho Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
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Enhancement of bone regeneration with the combination of platelet-rich fibrin and synthetic graft. J Craniofac Surg 2015; 25:2164-8. [PMID: 25318438 DOI: 10.1097/scs.0000000000001172] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION Platelet-rich fibrin (PRF) is a relatively new developed platelet concentrate with several benefits over platelet-rich plasma. The aim of this study was to compare healing properties of PRF and its combination with a ceramic synthetic material (graft) composed of hydroxyapatite and b-tricalcium phosphate in an animal model. METHODS A bone deficit was surgically created in each femoral condyle of 15 New Zealand white rabbits. In each animal, 1 limb had (a) PRF only and the other (b) PRF plus synthetic graft material randomly implanted. Experimental animals were killed 3 months postoperatively. Histological and radiological examinations were made by means of computed tomography and peripheral quantitative computed tomography. RESULTS Mean density of the healed bone was statistically significantly greater when synthetic material was used (P < 0.0005). Moreover, combination of PRF with the synthetic material resulted in more cortical and subcortical bone formation (P = 0.038 and P = 0.037, respectively). CONCLUSIONS The addition of the ceramic material significantly increased the formation of new bone, providing a better substrate for bone regeneration.
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Jung IH, Lim HC, Lee EU, Lee JS, Jung UW, Choi SH. Comparative analysis of carrier systems for delivering bone morphogenetic proteins. J Periodontal Implant Sci 2015; 45:136-44. [PMID: 26339523 PMCID: PMC4556799 DOI: 10.5051/jpis.2015.45.4.136] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 08/15/2015] [Indexed: 01/13/2023] Open
Affiliation(s)
- Im-Hee Jung
- Department of Dental Hygiene, Eulji University College of Health Science, Seongnam, Korea. ; Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Hyun-Chang Lim
- Department of Periodontology, Kyung Hee University School of Dentistry, Seoul, Korea
| | - Eun-Ung Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Jung-Seok Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Seong-Ho Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
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Niu CC, Lin SS, Chen WJ, Liu SJ, Chen LH, Yang CY, Wang CJ, Yuan LJ, Chen PH, Cheng HY. Benefits of biphasic calcium phosphate hybrid scaffold-driven osteogenic differentiation of mesenchymal stem cells through upregulated leptin receptor expression. J Orthop Surg Res 2015; 10:111. [PMID: 26179165 PMCID: PMC4506435 DOI: 10.1186/s13018-015-0236-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 06/12/2015] [Indexed: 11/20/2022] Open
Abstract
Background The use of mesenchymal stem cells (MSCs) and coralline hydroxyapatite (HA) or biphasic calcium phosphate (BCP) as a bone substitute for posterolateral spinal fusion has been reported. However, the genes and molecular signals by which MSCs interact with their surrounding environment require further elucidation. Methods MSCs were harvested from bone grafting patients and identified by flow cytometry. A composite scaffold was developed using poly(lactide-co-glycolide) (PLGA) copolymer, coralline HA, BCP, and collagen as a carrier matrix for MSCs. The gene expression profiles of MSCs cultured in the scaffolds were measured by microarrays. The alkaline phosphatase (ALP) activity of the MSCs was assessed, and the expression of osteogenic genes and proteins was determined by quantitative polymerase chain reaction (Q-PCR) and Western blotting. Furthermore, we cultured rabbit MSCs in BCP or coralline HA hybrid scaffolds and transplanted these mixtures into rabbits for spinal fusion. We investigated the differences between BCP and coralline HA hybrid scaffolds by dual-energy X-ray absorptiometry (DEXA) and computed tomography (CT). Results Tested in vitro, the cells were negative for hematopoietic cell markers and positive for MSC markers. There was higher expression of 80 genes and lower of 101 genes of MSCs cultured in BCP hybrid scaffolds. Some of these genes have been shown to play a role in osteogenesis of MSCs. In addition, MSCs cultured in BCP hybrid scaffolds produced more messenger RNA (mRNA) for osteopontin, osteocalcin, Runx2, and leptin receptor (leptin-R) than those cultured in coralline HA hybrid scaffolds. Western blotting showed more Runx2 and leptin-R protein expression in BCP hybrid scaffolds. For in vivo results, 3D reconstructed CT images showed continuous bone bridges and fusion mass incorporated with the transverse processes. Bone mineral content (BMC) values were higher in the BCP hybrid scaffold group than in the coralline HA hybrid scaffold group. Conclusions The BCP hybrid scaffold for osteogenesis of MSCs is better than the coralline HA hybrid scaffold by upregulating expression of leptin-R. This was consistent with in vivo data, which indicated that BCP hybrid scaffolds induced more bone formation in a spinal fusion model.
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Affiliation(s)
- Chi-Chien Niu
- Department of Orthopaedics, Chang Gung Memorial Hospital, No. 5, Fu-Hsing Street 333, Kweishan, Taoyuan, Taiwan. .,College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Song-Shu Lin
- Department of Orthopaedics, Chang Gung Memorial Hospital, No. 5, Fu-Hsing Street 333, Kweishan, Taoyuan, Taiwan.
| | - Wen-Jer Chen
- Department of Orthopaedics, Chang Gung Memorial Hospital, No. 5, Fu-Hsing Street 333, Kweishan, Taoyuan, Taiwan. .,College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Shih-Jung Liu
- Department of Mechanical Engineering, Chang Gung University, Taoyuan, Taiwan.
| | - Lih-Huei Chen
- Department of Orthopaedics, Chang Gung Memorial Hospital, No. 5, Fu-Hsing Street 333, Kweishan, Taoyuan, Taiwan. .,College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Chuen-Yung Yang
- Department of Orthopaedics, Chang Gung Memorial Hospital, No. 5, Fu-Hsing Street 333, Kweishan, Taoyuan, Taiwan.
| | - Chao-Jan Wang
- Department of Radiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Li-Jen Yuan
- Department of Orthopaedics, Chang Gung Memorial Hospital, No. 5, Fu-Hsing Street 333, Kweishan, Taoyuan, Taiwan. .,College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Po-Han Chen
- Department of Orthopaedics, Chang Gung Memorial Hospital, No. 5, Fu-Hsing Street 333, Kweishan, Taoyuan, Taiwan.
| | - Hsiao-Yang Cheng
- Department of Radiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
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Lim HC, Song KH, You H, Lee JS, Jung UW, Kim SY, Choi SH. Effectiveness of biphasic calcium phosphate block bone substitutes processed using a modified extrusion method in rabbit calvarial defects. J Periodontal Implant Sci 2015; 45:46-55. [PMID: 25932338 PMCID: PMC4415001 DOI: 10.5051/jpis.2015.45.2.46] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 02/20/2015] [Indexed: 11/08/2022] Open
Abstract
PURPOSE This study evaluated the mechanical and structural properties of biphasic calcium phosphate (BCP) blocks processed using a modified extrusion method, and assessed their in vivo effectiveness using a rabbit calvarial defect model. METHODS BCP blocks with three distinct ratios of hydroxyapatite (HA):tricalcium phosphate (TCP) were produced using a modified extrusion method:HA8 (8%:92%), HA48 (48%:52%), and HA80 (80%:20%). The blocks were examined using scanning electron microscopy, X-ray diffractometry, and a universal test machine. Four circular defects 8 mm in diameter were made in 12 rabbits. One defect in each animal served as a control, and the other three defects received the BCP blocks. The rabbits were sacrificed at either two weeks (n=6) or eight weeks (n=6) postoperatively. RESULTS The pore size, porosity, and compressive strength of the three types of bone block were 140-170 µm, >70%, and 4-9 MPa, respectively. Histologic and histomorphometric observations revealed that the augmented space was well maintained, but limited bone formation was observed around the defect base and defect margins. No significant differences were found in the amount of new bone formation, graft material resorption, or bone infiltration among the three types of BCP block at either of the postoperative healing points. CONCLUSIONS Block bone substitutes with three distinct compositions (i.e., HA:TCP ratios) processed by a modified extrusion method exhibited limited osteoconductive potency, but excellent space-maintaining capability. Further investigations are required to improve the processing method.
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Affiliation(s)
- Hyun-Chang Lim
- Department of Periodontology, Kyung Hee University School of Dentistry, Seoul, Korea
| | - Kyung-Ho Song
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea
| | - Hoon You
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea
| | - Jung-Seok Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea
| | - Suk-Young Kim
- School of Materials Science & Engineering, Yeungnam University, Gyeongsan, Korea
| | - Seong-Ho Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea
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Lee EU, Lim HC, Hong JY, Lee JS, Jung UW, Choi SH. Bone regenerative efficacy of biphasic calcium phosphate collagen composite as a carrier of rhBMP-2. Clin Oral Implants Res 2015; 27:e91-e99. [PMID: 25675839 DOI: 10.1111/clr.12568] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2015] [Indexed: 01/12/2023]
Abstract
OBJECTIVES This study compared the bone regenerative effects of a recombinant human bone morphogenetic protein 2 (rhBMP-2)-loaded collagen-based biphasic calcium phosphate composite (BCPC) and rhBMP-2-loaded biphasic calcium phosphate (BCP). MATERIAL AND METHODS The in vitro release profiles of rhBMP-2-loaded BCP and BCPC were measured. The animal surgery was performed on ten rabbits. Four 8-mm-diameter circular calvarial defects were made and filled with BCP, BCPC, rhBMP-2-loaded BCP (BMP + BCP) and rhBMP-2-loaded BCPC (BMP + BCPC). The animals were euthanized either 2 or 8 weeks after surgery. RESULTS The initial burst release of rhBMP-2 was greater for BCP than for BCPC, and both presented a slow release pattern thereafter. In rabbit calvarial defects, the space maintaining capability and graft resorption of all experimental groups did not show statistical differences at 2 and 8 weeks. New bone formation in the rhBMP-2-loaded groups was greater than in the non-loaded groups at both weeks, but the amount of new bone was comparable between both rhBMP-2-loaded groups at both weeks. There was a distinct histologic difference between the BMP + BCP and BMP + BCPC groups at 2 weeks; the new bone formation occurred more in the intergranular spaces and the BCP-to-bone contact was greater in the BMP + BCPC group, but these differences were no longer discernible at 8 weeks. CONCLUSIONS BCP- and BCPC-loaded rhBMP-2 significantly improved bone regeneration and BCPC led to a dense network of new bone and bone particles during the early healing period. BCPC can therefore be considered as a promising candidate for carrying rhBMP-2.
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Affiliation(s)
- Eun-Ung Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea
| | - Hyun-Chang Lim
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea
| | - Ji-Youn Hong
- Department of Periodontology, School of Dentistry, Kyung Hee University, Seoul, Korea
| | - Jung-Seok Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea
| | - Seong-Ho Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea.
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Lee EU, Kim DJ, Lim HC, Lee JS, Jung UW, Choi SH. Comparative evaluation of biphasic calcium phosphate and biphasic calcium phosphate collagen composite on osteoconductive potency in rabbit calvarial defect. Biomater Res 2015; 19:1. [PMID: 26331072 PMCID: PMC4552310 DOI: 10.1186/s40824-014-0026-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 12/29/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The aim of this study was to determine the osteoconductivity of biphasic calcium phosphate collagen composite (BCPC) in rabbit calvarial defect model by comparing with biphasic calcium phosphate (BCP). Four 8 mm diameter bicortical calvarial defects were made in ten rabbits. Each of the defects was randomly assigned and filled with 1) collagen sponge, 2) BCP, 3) BCPC, and 4) nothing as control. The animals were sacrificed at either 2 weeks (n = 5) or 8 weeks (n = 5) healing period. RESULTS All groups showed wedge shaped new bone formation limited to the area of the defect margin at both healing periods. The amounts of new bone and defect closure were similar among all groups. In the control and collagen sponge group, the center of the defect was depressed by surrounding tissues. In contrast, in BCP and BCPC group, the center of the defect did not depressed and the grafted materials maintained the space. And the augmented area was significantly higher in BCP and BCPC group compared to the control and collagen sponge group at both healing periods (p < 0.05). CONCLUSIONS The BCPC and BCP demonstrated proper space maintaining capacity and osteoconductive property, suggesting BCPC can be efficiently utilized in various clinical situations.
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Affiliation(s)
- Eun-Ung Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul South Korea
| | - Dong-Ju Kim
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul South Korea
| | - Hyun-Chang Lim
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul South Korea
| | - Jung-Seok Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul South Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul South Korea
| | - Seong-Ho Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul South Korea
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41
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Wu T, Shi H, Ye J. Effect of PLGA/lecithin hybrid microspheres and β-tricalcium phosphate granules on the physicochemical properties, in vitro degradation and biocompatibility of calcium phosphate cement. RSC Adv 2015. [DOI: 10.1039/c5ra06861d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
CPC with beta-TCP granules and PLGA/Lec microspheres reveals better degradability and cell affinity along with proper physicochemical properties.
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Affiliation(s)
- Tingting Wu
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
- National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Haishan Shi
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
- National Engineering Research Center for Tissue Restoration and Reconstruction
| | - Jiandong Ye
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
- National Engineering Research Center for Tissue Restoration and Reconstruction
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Zavatti M, Bertoni L, Maraldi T, Resca E, Beretti F, Guida M, La Sala GB, De Pol A. Critical-size bone defect repair using amniotic fluid stem cell/collagen constructs: effect of oral ferutinin treatment in rats. Life Sci 2014; 121:174-83. [PMID: 25445219 DOI: 10.1016/j.lfs.2014.10.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 10/16/2014] [Accepted: 10/18/2014] [Indexed: 02/08/2023]
Abstract
AIMS This study aims to evaluate the bone regeneration in a rat calvarias critical size bone defect treated with a construct consisting of collagen type I and human amniotic fluid stem cells (AFSCs) after oral administration of phytoestrogen ferutinin. MAIN METHODS In 12 week old male rats (n=10), we performed two symmetric full-thickness cranial defects on each parietal region, and a scaffold was implanted into each cranial defect. The rats were divided into four groups: 1) collagen scaffold, 2) collagen scaffold+ferutinin at a dose of 2mg/kg/5 mL, 3) collagen scaffold + AFSCs, and 4) collagen scaffold + AFSCs + ferutinin. The rats were sacrificed after 4 weeks, and the calvariae were removed, fixed, embedded in paraffin and cut into 7 μm thick sections. Histomorphometric measures, immunohistochemical and immunofluorescence analyses were performed on the paraffin sections. KEY FINDINGS The histomorphometric analysis on H&E stained sections showed a significant increase in the regenerated area of the 4th group compared with the other groups. Immunohistochemistry performed with a human anti-mitochondrial antibody showed the presence of AFSCs 4 weeks after the transplant. Immunofluorescence analysis revealed the presence of osteocalcin and estrogen receptors (ERα and GPR30) in all groups, with a greater expression of all markers in samples where the scaffold was treated with AFSCs and the rats were orally administered ferutinin. SIGNIFICANCE Our results demonstrated that the oral administration of ferutinin is able to improve the bone regeneration of critical-size bone defects in vivo that is obtained with collagen-AFSCs constructs.
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Affiliation(s)
- Manuela Zavatti
- Department of Surgical, Medical, Dental and Morphological Sciences with Interest in Transplants, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy.
| | - Laura Bertoni
- Department of Surgical, Medical, Dental and Morphological Sciences with Interest in Transplants, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Tullia Maraldi
- Department of Surgical, Medical, Dental and Morphological Sciences with Interest in Transplants, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Elisa Resca
- Department of Surgical, Medical, Dental and Morphological Sciences with Interest in Transplants, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Francesca Beretti
- Department of Surgical, Medical, Dental and Morphological Sciences with Interest in Transplants, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | | | - Giovanni B La Sala
- Unit of Obstetrics & Gynecology, IRCCS-Arcispedale Santa Maria Nuova, Reggio Emilia, Italy
| | - Anto De Pol
- Department of Surgical, Medical, Dental and Morphological Sciences with Interest in Transplants, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
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43
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D'Mello S, Elangovan S, Hong L, Ross RD, Sumner DR, Salem AK. Incorporation of copper into chitosan scaffolds promotes bone regeneration in rat calvarial defects. J Biomed Mater Res B Appl Biomater 2014; 103:1044-9. [PMID: 25230382 DOI: 10.1002/jbm.b.33290] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 08/03/2014] [Accepted: 09/01/2014] [Indexed: 11/09/2022]
Abstract
The objective of this study was to investigate the effects of a copper loaded chitosan scaffold on bone regeneration in critical-sized calvarial defects in rats. Chitosan scaffolds and copper-chitosan scaffolds were fabricated and characterized by scanning electron microscopy (SEM). Chitosan and copper-chitosan scaffolds were implanted into 5 mm diameter critical-sized calvarial defects in Fisher 344 male rats. Empty defects (no scaffolds) were included as a control. After 4 weeks, the rats were sacrificed for microcomputed tomography (micro-CT) and histological analysis of new bone tissue development. Microscopy images revealed the uniformly porous structure of chitosan and copper-chitosan scaffolds. Significant bone regeneration was noted in the defects treated with copper-chitosan scaffolds when evaluated using micro-CT and histological analysis, when compared with other groups tested. On analysis of the micro-CT scans, an eleven-fold and a two-fold increase in the new bone volume/total volume (BV/TV) % was found in defects treated with the copper-chitosan scaffolds, when compared to empty defects and chitosan scaffolds, respectively. This study demonstrated the suitability of copper-crosslinked chitosan scaffolds for bone tissue engineering and provides the first evidence that inclusion of copper ions in scaffolds can enhance tissue regeneration.
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Affiliation(s)
- Sheetal D'Mello
- Division of Pharmaceutics and Translational Therapeutics, College of Pharmacy, University of Iowa, Iowa, 52242
| | - Satheesh Elangovan
- Department of Periodontics, College of Dentistry, University of Iowa, Iowa City, Iowa, 52242
| | - Liu Hong
- Department of Prosthodontics, College of Dentistry, University of Iowa, Iowa City, Iowa
| | - Ryan D Ross
- Department of Anatomy and Cell Biology, Rush Medical College, Chicago, Illinois
| | - D Rick Sumner
- Department of Anatomy and Cell Biology, Rush Medical College, Chicago, Illinois
| | - Aliasger K Salem
- Division of Pharmaceutics and Translational Therapeutics, College of Pharmacy, University of Iowa, Iowa, 52242.,Department of Periodontics, College of Dentistry, University of Iowa, Iowa City, Iowa, 52242
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Lee JH, Kim J, Baek HR, Lee KM, Seo JH, Lee HK, Lee AY, Zheng GB, Chang BS, Lee CK. Fabrication of an rhBMP-2 loaded porous β-TCP microsphere-hyaluronic acid-based powder gel composite and evaluation of implant osseointegration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:2141-2151. [PMID: 24928668 PMCID: PMC4137170 DOI: 10.1007/s10856-014-5250-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Accepted: 06/02/2014] [Indexed: 06/03/2023]
Abstract
Methods to improve osseointegration that include implantation of rhBMP-2 with various kinds of carriers are currently of considerable interest. The present study was conducted to evaluate if the rhBMP-2 loaded β-TCP microsphere-hyaluronic acid-based powder-like hydrogel composite (powder gel) can act as an effective rhBMP-2 carrier for implantation in host bone with a bone defect or poor bone quality. The release pattern for rhBMP-2 was then evaluated against an rhBMP-2-loaded collagen sponge as a control group. Dental implants were also inserted into the tibias of three groups of rabbits: an rhBMP-2 (200 µg) loaded powder gel composite implanted group, an implant only group, and a powder gel implanted group. Micro-CT and histology of the implanted areas were carried out four weeks later. The rhBMP-2 powder gel released less rhBMP-2 than the collagen sponge, but it continued a slow release for more than 7 days. The rhBMP-2 powder gel composite improved osseointegration of the dental implant by increasing the amount of new bone formation in the implant pitch and it improved the bone quality and bone quantity of new bone. The histology results indicated that the rhBMP-2 powder gel composite improved the osseointegration in the cortical bone as well as the marrow space along the fixture. The bone-to-implant contact ratio of the rhBMP-2 (200 µg) loaded powder gel composite implanted group was significantly higher than those of the implant only group and the powder gel implanted group. The powder gel appeared to be a good carrier and could release rhBMP-2 slowly to promote the formation of new bone following implantation in a bone defect, thereby improving implant osseointegration.
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Affiliation(s)
- Jae Hyup Lee
- Department of Orthopedic Surgery, College of Medicine, SMG-SNU Boramae Medical Center, Seoul National University, 425 Shindaebang-2-Dong, Seoul, 156-707, Korea,
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45
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Chen L, Gu Y, Feng Y, Zhu XS, Wang CZ, Liu HL, Niu HY, Zhang C, Yang HL. Bioactivity of porous biphasic calcium phosphate enhanced by recombinant human bone morphogenetic protein 2/silk fibroin microsphere. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:1709-1719. [PMID: 24659100 DOI: 10.1007/s10856-014-5194-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Accepted: 03/12/2014] [Indexed: 06/03/2023]
Abstract
To prepare a bioactive bone substitute, which integrates biphasic calcium phosphate (BCP) and rhBMP-2/silk fibroin (SF) microsphere, and to evaluate its characteristics. Hydroxyapatite and β-tricalcium phosphate were integrated with a ratio of 60–40%. RhBMP-2/SF (0.5 μg/1 mg) microsphere was prepared, and its rhBMP-2-release kinetics was assed. After joining pore-forming agent (Sodium chloride, NaCl), porous BCP/rhBMP-2/SF were manufactured, and its characteristics and bioactivity in vitro were evaluated. Mean diameter of rhBMP-2/SF microsphere was 398.7 ± 99.86 nm, with a loading rate of 4.53 ± 0.08%. RhBMP-2 was released in a dual-phase pattern, of which fast-release (nearly half of protein released) focused on the initial 3 days, and slow-release sustained more than 28 days. With the increase in concentration of NaCl, greater was porosity and pore size, but smaller mechanical strength of BCP/rhBMP-2/SF. Material with 150% (w/v) NaCl had an optimal performance, with a porosity of 78.83%, pore size of 293.25 ± 42.77μm and mechanical strength of 31.03 MPa. Proliferation of human placenta-derived mesenchymal stem cells (hPMSCs) on leaching extract medium was similar to the normal medium (P = 0.89), which was better than that on control group (P = 0.03). Activity of alkaline phosphatase on BCP/rhBMP-2/SF surface was higher than on pure BCP at each time point except at 1 day (P < 0.05). RhBMP-2 has a burst release on early times and a sustaining release on later times. BCP/rhBMP-2/SF with 150% (w/v) pore-forming agent has excellent porosity, pore size and mechanical strength. The biomaterial induces proliferation and differentiation hPMSCs effectively.
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46
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Alsayed A, Anil S, Jansen JA, van den Beucken JJJP. Comparative evaluation of the combined application of titanium implants and calcium phosphate bone substitutes in a rabbit model. Clin Oral Implants Res 2014; 26:1215-21. [DOI: 10.1111/clr.12435] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Arwa Alsayed
- Department of Biomaterials (309); Radboudumc; Nijmegen The Netherlands
- Department of Dentistry; Prince Sultan Military Medical City; Ministry of Defence; Riyadh Saudi Arabia
| | - Sukumaran Anil
- Department of Periodontics and Community Dentistry; College of Dentistry; King Saud University; Riyadh Saudi Arabia
| | - John A. Jansen
- Department of Biomaterials (309); Radboudumc; Nijmegen The Netherlands
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47
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Oryan A, Alidadi S, Moshiri A, Maffulli N. Bone regenerative medicine: classic options, novel strategies, and future directions. J Orthop Surg Res 2014; 9:18. [PMID: 24628910 PMCID: PMC3995444 DOI: 10.1186/1749-799x-9-18] [Citation(s) in RCA: 599] [Impact Index Per Article: 59.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 02/20/2014] [Indexed: 12/14/2022] Open
Abstract
This review analyzes the literature of bone grafts and introduces tissue engineering as a strategy in this field of orthopedic surgery. We evaluated articles concerning bone grafts; analyzed characteristics, advantages, and limitations of the grafts; and provided explanations about bone-tissue engineering technologies. Many bone grafting materials are available to enhance bone healing and regeneration, from bone autografts to graft substitutes; they can be used alone or in combination. Autografts are the gold standard for this purpose, since they provide osteogenic cells, osteoinductive growth factors, and an osteoconductive scaffold, all essential for new bone growth. Autografts carry the limitations of morbidity at the harvesting site and limited availability. Allografts and xenografts carry the risk of disease transmission and rejection. Tissue engineering is a new and developing option that had been introduced to reduce limitations of bone grafts and improve the healing processes of the bone fractures and defects. The combined use of scaffolds, healing promoting factors, together with gene therapy, and, more recently, three-dimensional printing of tissue-engineered constructs may open new insights in the near future.
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Affiliation(s)
| | | | - Ali Moshiri
- Division of Surgery and Radiology, Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz 71345, Iran.
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48
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Oryan A, Alidadi S, Moshiri A, Maffulli N. Bone regenerative medicine: classic options, novel strategies, and future directions. J Orthop Surg Res 2014. [PMID: 24628910 DOI: 10.1186/1749-799x9-18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
This review analyzes the literature of bone grafts and introduces tissue engineering as a strategy in this field of orthopedic surgery. We evaluated articles concerning bone grafts; analyzed characteristics, advantages, and limitations of the grafts; and provided explanations about bone-tissue engineering technologies. Many bone grafting materials are available to enhance bone healing and regeneration, from bone autografts to graft substitutes; they can be used alone or in combination. Autografts are the gold standard for this purpose, since they provide osteogenic cells, osteoinductive growth factors, and an osteoconductive scaffold, all essential for new bone growth. Autografts carry the limitations of morbidity at the harvesting site and limited availability. Allografts and xenografts carry the risk of disease transmission and rejection. Tissue engineering is a new and developing option that had been introduced to reduce limitations of bone grafts and improve the healing processes of the bone fractures and defects. The combined use of scaffolds, healing promoting factors, together with gene therapy, and, more recently, three-dimensional printing of tissue-engineered constructs may open new insights in the near future.
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Affiliation(s)
| | | | - Ali Moshiri
- Division of Surgery and Radiology, Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz 71345, Iran.
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