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Seo JI, Lim JH, Jo WM, Lee JK, Song SI. Effects of rhBMP-2 with various carriers on maxillofacial bone regeneration through computed tomography evaluation. Maxillofac Plast Reconstr Surg 2023; 45:40. [PMID: 37889372 PMCID: PMC10611676 DOI: 10.1186/s40902-023-00405-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 10/03/2023] [Indexed: 10/28/2023] Open
Abstract
BACKGROUND rhBMP-2 is regarded as the most potent osteoinductive growth factor, and it has been used in the oral cavity with different carriers. The purpose of this study is to evaluate the bone-regenerative effect of rhBMP-2 delivered with different carrier systems through three-dimensional cone beam computed tomography analysis. METHOD A total of 112 patients underwent oral surgery with rhBMP-2 application (Group 1, n = 53) or without rhBMP-2 application (Group 2, n = 59). Group 1 was divided into 3 groups according to carriers, rhBMP-2 with allograft (Group 1-1, n = 34), rhBMP-2 with xenograft (Group 1-2, n = 5), and rhBMP-2 with absorbable collagen sponge (Group 1-3, n = 14). Cone beam computed tomography scans were taken before surgery (T0) 6 months after surgery (T1). The volume of defects was measured through the three-dimensional image analysis tool. RESULTS The average bone regeneration rate of Group 1 was significantly greater than that of Group 2. Within Group 1, the group that used allograft as a carrier (Group 1-1) showed significantly higher bone regeneration rates than the group that used absorbable collagen sponge as a carrier (Group 1-3). CONCLUSION The use of rhBMP-2 after oral surgery results in a superior bone regeneration rate compared to not using rhBMP-2, and its efficacy depends on the carriers it is used with. Allograft affects bone regeneration more than absorbable collagen sponge when it is carried with rhBMP-2. Therefore, the appropriate use of rhBMP-2 with suitable bone grafting materials is useful for promoting postoperative bone regeneration in oral surgery.
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Affiliation(s)
- Ja In Seo
- Department of Oral and Maxillofacial Surgery, Institute of Oral Health Science, Ajou University School of Medicine, 164 World cup-Ro, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do, 16499, Republic of Korea
| | - Ji Hye Lim
- Department of Oral and Maxillofacial Surgery, Institute of Oral Health Science, Ajou University School of Medicine, 164 World cup-Ro, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do, 16499, Republic of Korea
| | - Woo Min Jo
- Department of Oral and Maxillofacial Surgery, Institute of Oral Health Science, Ajou University School of Medicine, 164 World cup-Ro, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do, 16499, Republic of Korea
| | - Jeong Keun Lee
- Department of Oral and Maxillofacial Surgery, Institute of Oral Health Science, Ajou University School of Medicine, 164 World cup-Ro, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do, 16499, Republic of Korea
| | - Seung Il Song
- Department of Oral and Maxillofacial Surgery, Institute of Oral Health Science, Ajou University School of Medicine, 164 World cup-Ro, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do, 16499, Republic of Korea.
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Yang TH, Chou YC, Ju CP, Chern Lin JH. Osteoregenerative efficacy of a novel synthetic, resorbable Ca/P/S-based bone graft substitute in intra- and peri-articular fractures: a brief medical image-based report. J Orthop Surg Res 2022; 17:500. [DOI: 10.1186/s13018-022-03385-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/05/2022] [Indexed: 11/20/2022] Open
Abstract
Abstract
Background
When a fracture goes into or around a joint, it usually damages the cartilage at the ends of bones and other joint tissue. As a result, the affected joints are prone to traumatic arthritis, leading to stiffness. Repairing bone damage, maintaining joint integrity, and avoiding subchondral and metaphyseal defects caused by comminuted fractures is often a great challenge for orthopedic surgeons. Tissue engineering of synthetic bone substitutes has proven beneficial to the attachment and proliferation of bone cells, promoting the formation of mature tissues with sufficient mechanical strength and has become a promising alternative to autograft methods. The purpose of this study is to retrospectively evaluate the clinical outcome and efficacy of a novel synthetic, highly biocompatible, and fully resorbable Ca/P/S-based bone substitute based on medical image findings.
Materials and methods
A synthetic, inorganic and highly porous Ca/P/S-based bone-substituting material (Ezechbone® Granule, CBS-400) has been developed by National Cheng-Kung University. We collected fourteen cases of complex intra- and peri-articular fractures with Ezechbone® Granule bone grafting between 2019/11 and 2021/11. We studied the evidence of bone healing by reviewing, interpreting and analyzing the medical image recordings.
Results
In the present study, CBS-400 was observed to quickly integrate into surrounding bone within three weeks after grafting during the initial callus formation of the early stage of repair. All of these cases healed entirely within three months. In addition, the patient may return to daily life function after 3.5 months of follow-up and rehabilitation treatment.
Conclusions
Ezechbone® Granule CBS-400 was proved capable of promoting bone healing and early rehabilitation to prevent soft tissue adhesions and joint contractures. Moreover, it has a high potential for avoiding ectopic bone formation or abnormal synostosis.
Trial registration
The Institutional Review Board at National Cheng Kung University Hospital (NCKUH) approved the study protocol (A-ER-109-031, 3-13-2020).
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Kang TY, Seo JY, Ryu JH, Kim KM, Kwon JS. Improvement of the mechanical and biological properties of bioactive glasses by the addition of zirconium oxide (ZrO 2 ) as a synthetic bone graft substitute. J Biomed Mater Res A 2021; 109:1196-1208. [PMID: 33012133 DOI: 10.1002/jbm.a.37113] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 09/27/2020] [Accepted: 10/02/2020] [Indexed: 11/08/2022]
Abstract
In this study, mechanical properties of bioactive glass (BAG) synthetic bone graft substitute was improved by containing ZrO2 (ZrO2 -BAG), while maintaining advantageous biological properties of BAG such as osteoinductive and osteoconductive properties. The ZrO2 -BAG was produced by adding ZrO2 in the following proportions to replace Na2 O in 45S5 BAG: 1% (Zr1-BAG), 3% (Zr3-BAG), 6% (Zr6-BAG), and 12% (Zr12-BAG). Properties including XRD, XPS, SEM, DSC, fracture toughness, and Vickers microhardness were evaluated. To assess the biological properties, Ca/P apatite formation, ion release, degradation rate, cell proliferation, ALP activity (ALP), and alizarin red S staining assay (ARS) were evaluated. Also, expression of osteogenic differentiation markers, Osteopontin (OPN), confirmed by immunofluorescence staining. Finally, an in vivo test was carried out to by implanting ZrO2 -BAG into the subcutaneous tissue of rats. The results of each test were statistically analyzed with one-way ANOVA followed by Tukey's post hoc statistical test. Amorphous ZrO2 -BAG was successfully produced with increased mechanical properties as the ZrO2 content was increased. Additionally, ZrO2 -BAG exhibited a slower ion release and degradation rate compare to BAG without ZrO2 . Bioactivity of ZrO2 -BAG was confirmed with apatite layer formed on the surface, significantly higher proliferation rate and significantly enhanced ALP and the degree of ARS of the cells compare to respective controls. The tissue reactions observed in the in vivo study showed neo-formed vessels after implantation of ZrO2 -BAG.
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Affiliation(s)
- Tae-Yun Kang
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
- Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Ji-Young Seo
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jeong-Hyun Ryu
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
- Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Kwang-Mahn Kim
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
- Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jae-Sung Kwon
- Department and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry, Seoul, South Korea
- Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, Seoul, South Korea
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Bone Morphogenetic Proteins, Carriers, and Animal Models in the Development of Novel Bone Regenerative Therapies. MATERIALS 2021; 14:ma14133513. [PMID: 34202501 PMCID: PMC8269575 DOI: 10.3390/ma14133513] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/26/2022]
Abstract
Bone morphogenetic proteins (BMPs) possess a unique ability to induce new bone formation. Numerous preclinical studies have been conducted to develop novel, BMP-based osteoinductive devices for the management of segmental bone defects and posterolateral spinal fusion (PLF). In these studies, BMPs were combined with a broad range of carriers (natural and synthetic polymers, inorganic materials, and their combinations) and tested in various models in mice, rats, rabbits, dogs, sheep, and non-human primates. In this review, we summarized bone regeneration strategies and animal models used for the initial, intermediate, and advanced evaluation of promising therapeutical solutions for new bone formation and repair. Moreover, in this review, we discuss basic aspects to be considered when planning animal experiments, including anatomical characteristics of the species used, appropriate BMP dosing, duration of the observation period, and sample size.
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Liu Y, Yang Z, Wang L, Sun L, Kim BYS, Jiang W, Yuan Y, Liu C. Spatiotemporal Immunomodulation Using Biomimetic Scaffold Promotes Endochondral Ossification-Mediated Bone Healing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2100143. [PMID: 34105266 PMCID: PMC8188258 DOI: 10.1002/advs.202100143] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Indexed: 05/16/2023]
Abstract
Biomaterials play an important role in treating bone defects by promoting direct osteogenic healing through intramembranous ossification (IO). However, majority of the body's bones form via cartilaginous intermediates by endochondral ossification (EO), a process that has not been well mimicked by engineered scaffolds, thus limiting their clinical utility in treating large segmental bone defects. Here, by entrapping corticosteroid dexamethasone within biomimetic recombinant human bone morphogenetic protein (rhBMP)-loaded porous mesoporous bioglass scaffolds and regulating their release kinetics, significant degree of ectopic bone formation through endochondral ossification is achieved. By regulating the recruitment and polarization of immune suppressive macrophage phenotypes, the scaffold promotes rapid chondrogenesis by activating Hif-3α signaling pathway in mesenchymal stem cells, which upregulates the expression of downstream chondrogenic genes. Inhibition of Hif-3α signaling reverses the endochondral ossification phenotype. Together, these results reveal a strategy to facilitate developmental bone growth process using immune modulating biomimetic scaffolds, thus providing new opportunities for developing biomaterials capable of inducing natural tissue regeneration.
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Affiliation(s)
- Yutong Liu
- Key Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and Engineering, and Engineering Research Center for Biomedical Materials of Ministry of EducationEast China University of Science and TechnologyShanghai200237P. R. China
| | - Zhaogang Yang
- Department of Radiation OncologyUniversity of Texas Southwestern Medical CenterDallasTX75390USA
| | - Lixuan Wang
- Key Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and Engineering, and Engineering Research Center for Biomedical Materials of Ministry of EducationEast China University of Science and TechnologyShanghai200237P. R. China
| | - Lili Sun
- Key Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and Engineering, and Engineering Research Center for Biomedical Materials of Ministry of EducationEast China University of Science and TechnologyShanghai200237P. R. China
| | - Betty Y. S. Kim
- Department of NeurosurgeryThe University of Texas MD Anderson Cancer CenterHoustonTX77030USA
| | - Wen Jiang
- Department of Radiation OncologyUniversity of Texas Southwestern Medical CenterDallasTX75390USA
| | - Yuan Yuan
- Key Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and Engineering, and Engineering Research Center for Biomedical Materials of Ministry of EducationEast China University of Science and TechnologyShanghai200237P. R. China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and Engineering, and Engineering Research Center for Biomedical Materials of Ministry of EducationEast China University of Science and TechnologyShanghai200237P. R. China
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Stokovic N, Ivanjko N, Erjavec I, Milosevic M, Oppermann H, Shimp L, Sampath KT, Vukicevic S. Autologous bone graft substitute containing rhBMP6 within autologous blood coagulum and synthetic ceramics of different particle size determines the quantity and structural pattern of bone formed in a rat subcutaneous assay. Bone 2020; 141:115654. [PMID: 32977068 DOI: 10.1016/j.bone.2020.115654] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/16/2020] [Accepted: 09/16/2020] [Indexed: 01/10/2023]
Abstract
Bone morphogenetic proteins (BMPs) are potent osteoinductive agents for bone tissue engineering. In order to define optimal properties of a novel autologous bone graft substitute (ABGS) containing rhBMP6 within the autologous blood coagulum (ABC) and ceramic particles as a compression resistant matrix (CRM), we explored the influence of their amount, chemical composition and particle size on the quantity and quality of bone formation in the rat subcutaneous assay. Tested ceramic particles included tricalcium phosphate (TCP), hydroxyapatite (HA) and biphasic calcium phosphate ceramic (BCP), containing TCP and HA in 80/20 ratio of different particle sizes (small 74-420 μm, medium 500-1700 μm and large 1000-4000 μm). RhBMP6 was either mixed with ABC or lyophilized on CRM prior to use with ABC. The experiments were terminated on day 21 and implants were analysed by microCT, histology and histomorphometry. Addition of CRM to ABGS containing rhBMP6 in ABC significantly increased the amount of newly formed bone and the optimal CRM/ABC ratio was found to be around 100 mg/500 μL. MicroCT analyses revealed that all tested ABGS formulations induced an extensive new bone formation and there were no differences between the two methods of rhBMP6 application as determined by the bone volume. However, the particle size played a significant role in the quantity and quality of newly formed bone. ABGS containing small particles induced new bone forming a dense trabecular network, cortical bone at the rim, bone and bone marrow in apposition to and in between ceramic particles. ABGS containing medium and large particles also resulted in new bone on the surface of particles as well as inside the pores. Histomorphometric analysis revealed that the ceramics particle size correlated with the quality of trabecular pattern of newly formed bone, bone/bone marrow ratio as observed in apposition and between particles, and the ratio between the cortical and trabecular bone. By employing rat subcutaneous implant assay, we showed for the first time that the size of synthetic ceramics particles affected the osteogenesis as defined by both the quantity and quality of ectopic bone.
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Affiliation(s)
- Nikola Stokovic
- Laboratory for Mineralized Tissues, School of Medicine, University of Zagreb, Zagreb, Croatia; Scientific Center of Excellence for Reproductive and Regenerative Medicine, Croatia
| | - Natalia Ivanjko
- Laboratory for Mineralized Tissues, School of Medicine, University of Zagreb, Zagreb, Croatia; Scientific Center of Excellence for Reproductive and Regenerative Medicine, Croatia
| | - Igor Erjavec
- Laboratory for Mineralized Tissues, School of Medicine, University of Zagreb, Zagreb, Croatia; Scientific Center of Excellence for Reproductive and Regenerative Medicine, Croatia
| | - Milan Milosevic
- Department for Environmental Health, Occupational and Sports Medicine, Andrija Štampar School of Public Health, School of Medicine, University of Zagreb, Zagreb, Croatia
| | | | | | | | - Slobodan Vukicevic
- Laboratory for Mineralized Tissues, School of Medicine, University of Zagreb, Zagreb, Croatia; Scientific Center of Excellence for Reproductive and Regenerative Medicine, Croatia.
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Stokovic N, Ivanjko N, Milesevic M, Matic Jelic I, Bakic K, Rumenovic V, Oppermann H, Shimp L, Sampath TK, Pecina M, Vukicevic S. Synthetic ceramic macroporous blocks as a scaffold in ectopic bone formation induced by recombinant human bone morphogenetic protein 6 within autologous blood coagulum in rats. INTERNATIONAL ORTHOPAEDICS 2020; 45:1097-1107. [PMID: 33052447 DOI: 10.1007/s00264-020-04847-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 10/02/2020] [Indexed: 12/29/2022]
Abstract
PURPOSE We have recently developed an autologous bone graft substitute (ABGS) containing recombinant human bone morphogenetic protein 6 (rhBMP6) in autologous blood coagulum (ABC) that induces new bone formation in vivo. In order to improve biomechanical properties of the implant, compression resistant matrix (CRM) consisting of synthetic ceramics in the form of macroporous cylinders was added to the ABGS and we evaluated the biomechanical properties and the quantity and quality of bone formation following subcutaneous implantation in rats. METHODS ABGS implants containing rhBMP6 in ABC with cylindrical ceramic blocks were implanted subcutaneously (n = 6 per time point) in the axillary region of Sprague-Dawley rats and removed at specified time points (7, 14, 21, 35, and 50 days). The quantity and quality of newly formed bone were analyzed by microCT, histology, and histomorphometric analyses. Biomechanical properties of ABGS formulations were determined by employing the cut test. RESULTS MicroCT analyses revealed that ABGS implants induced formation of new bone within ceramic blocks. Histological analysis revealed that on day seven following implantation, the endochondral ossification occupied the peripheral part of implants. On days 14 and 21, newly formed bone was present both around the ceramic block and through the pores inside the block. On both days 35 and 50, cortical bone encircled the ceramic block while inside the block, bone covered the ceramic surface surrounding the pores. Within the osseous circles, there were few trabeculae and bone marrow containing adipocytes. ABGS containing cylindrical ceramic blocks were more rigid and had significantly increased stiffness compared with implants containing ceramic particles as CRM. CONCLUSION We demonstrated that macroporous ceramic blocks in a form of cylinders are promising CRMs with good handling and enhanced biomechanical properties, supporting bone formation with ABGS containing rhBMP6 within autologous blood coagulum. Hence, ABGS containing ceramic blocks should be tested in preclinical models including diaphyseal segmental defects and non-unions in larger animals.
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Affiliation(s)
- Nikola Stokovic
- Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, University of Zagreb School of Medicine, Zagreb, Croatia.,Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Natalia Ivanjko
- Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, University of Zagreb School of Medicine, Zagreb, Croatia.,Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Marina Milesevic
- Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, University of Zagreb School of Medicine, Zagreb, Croatia.,Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Ivona Matic Jelic
- Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, University of Zagreb School of Medicine, Zagreb, Croatia.,Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Kristian Bakic
- Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, University of Zagreb School of Medicine, Zagreb, Croatia.,Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Viktorija Rumenovic
- Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, University of Zagreb School of Medicine, Zagreb, Croatia.,Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | | | | | | | - Marko Pecina
- Department of Orthopaedic Surgery, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Slobodan Vukicevic
- Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, University of Zagreb School of Medicine, Zagreb, Croatia. .,Scientific Center of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia.
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Ao Q, Wang S, He Q, Ten H, Oyama K, Ito A, He J, Javed R, Wang A, Matsuno A. Fibrin Glue/Fibronectin/Heparin-Based Delivery System of BMP2 Induces Osteogenesis in MC3T3-E1 Cells and Bone Formation in Rat Calvarial Critical-Sized Defects. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13400-13410. [PMID: 32091872 DOI: 10.1021/acsami.0c01371] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Bone morphogenetic proteins (BMPs) have been used to promote bone formation in many clinical scenarios. However, the BMPs are inherently unstable in vivo and therefore need to be combined with carriers for controlled delivery. In this study, an innovative and efficient fibrin glue/fibronectin/heparin (FG/Fn/Hep)-based delivery system was developed for controlled release of BMP2. The incorporation of heparin can significantly slow the release of BMP2 without substantially affecting the structure and stiffness of the FG/Fn. The BMP2 release from the FG/Fn/Hep-BMP2 hydrogel is largely dominated by hydrogel degradation rather than simple diffusion. In vitro release experiments and MC3T3-E1 cell induction experiments showed that BMP2 can be released steadily and can induce MC3T3-E1 cells to differentiate into osteoblasts efficiently. This process is characterized by the significantly increased expression of calcium deposits, alkaline phosphatase, runt-related transcription factor-2, osteopontin, osteocalcin, and collagen I in comparison with the negative control. In vivo assessments revealed that the FG/Fn/Hep-BMP2 hydrogel significantly promotes bone regeneration in a rat calvarial critical-sized defect model. Our investigation indicates that FG/Fn/Hep-BMP2 hydrogel holds promise to be used as an alternative biomaterial for the repair of bone defects.
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Affiliation(s)
- Qiang Ao
- Department of Tissue Engineering, China Medical University, Shenyang 110122, China
- Institute of Regulatory Science for Medical Device, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Shilin Wang
- Department of Tissue Engineering, China Medical University, Shenyang 110122, China
| | - Qing He
- State Key Laboratory of Biomembrane and Membrane Biotechnology, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Hirotomo Ten
- Department of Neurosurgery, Teikyo University School of Medicine, Tokyo 163-8001, Japan
| | - Kenichi Oyama
- Department of Neurosurgery, Teikyo University School of Medicine, Tokyo 163-8001, Japan
| | - Akihiro Ito
- Department of Neurosurgery, Teikyo University School of Medicine, Tokyo 163-8001, Japan
| | - Jing He
- Department of Tissue Engineering, China Medical University, Shenyang 110122, China
| | - Rabia Javed
- Department of Tissue Engineering, China Medical University, Shenyang 110122, China
| | - Aijun Wang
- Surgical Bioengineering Laboratory, Department of Surgery, School of Medicine, University of California, Davis, Sacramento, California 95817, United States
| | - Akira Matsuno
- Department of Neurosurgery, Teikyo University School of Medicine, Tokyo 163-8001, Japan
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Xiong Z, Cui W, Sun T, Teng Y, Qu Y, Yang L, Zhou J, Chen K, Yao S, Shao Z, Guo X. Sustained delivery of PlGF-2 123-144*-fused BMP2-related peptide P28 from small intestinal submucosa/polylactic acid scaffold material for bone tissue regeneration. RSC Adv 2020; 10:7289-7300. [PMID: 35493905 PMCID: PMC9049782 DOI: 10.1039/c9ra07868a] [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: 09/27/2019] [Accepted: 02/09/2020] [Indexed: 12/18/2022] Open
Abstract
Bone morphogenetic protein 2 (BMP-2) is one of the most important factors for bone tissue formation. However, its use over the past decade has been associated with numerous side effects. This is due to the fact that recombinant human (rh) BMP-2 has several biological functions, as well as that non-physiological high dosages were commonly administered. In this study, we synthesized a novel BMP-2-related peptide (designated P28) and fused a mutant domain in placenta growth factor-2 (PlGF-2123-144*) that allowed for the "super-affinity" of extracellular matrix proteins to P28, effectively controlling the release of low dosage P28 from small intestinal submucosa/polylactic acid (SIS/PLA) scaffolds. These have been shown to be excellent scaffold materials both in vivo and in vitro. The aim of this study was to determine whether these scaffolds could support the controlled release of P28 over time, and whether the composite materials could serve as structurally and functionally superior bone substitutes in vivo. Our results demonstrated that P28 could be released slowly from SIS/PLA to promote the adhesion, proliferation, and differentiation of bone marrow stromal cells (BMSCs) in vitro. In vivo, radiographic and histological examination showed that SIS/PLA/P28/PlGF-2123-144* completely repaired critical-size bone defects, compared to SIS/PLA, SIS/PLA/PlGF-2123-144*, or SIS/PLA/P28 alone. These findings suggest that this controlled release system may have promising clinical applications in bone tissue engineering.
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Affiliation(s)
- Zekang Xiong
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Wei Cui
- Department of Orthopedics, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430000 People's Republic of China
| | - Tingfang Sun
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Yu Teng
- Department of Orthopedics, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430014 People's Republic of China
| | - Yanzhen Qu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Liang Yang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Jinge Zhou
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Kaifang Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Sheng Yao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Zengwu Shao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
| | - Xiaodong Guo
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology 1277 Jiefang Avenue Wuhan 430022 People's Republic of China +86 15327216660
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Zhang B, Skelly JD, Maalouf JR, Ayers DC, Song J. Multifunctional scaffolds for facile implantation, spontaneous fixation, and accelerated long bone regeneration in rodents. Sci Transl Med 2019; 11:11/502/eaau7411. [DOI: 10.1126/scitranslmed.aau7411] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 01/23/2019] [Accepted: 06/05/2019] [Indexed: 12/16/2022]
Abstract
Graft-guided regenerative repair of critical long bone defects achieving facile surgical delivery, stable graft fixation, and timely restoration of biomechanical integrity without excessive biotherapeutics remains challenging. Here, we engineered hydration-induced swelling/stiffening and thermal-responsive shape-memory properties into scalable, three-dimensional–printed amphiphilic degradable polymer-osteoconductive mineral composites as macroporous, non–load-bearing, resorbable synthetic grafts. The distinct physical properties of the grafts enabled straightforward surgical insertion into critical-size rat femoral segmental defects. Grafts rapidly recovered their precompressed shape, stiffening and swelling upon warm saline rinse to result in 100% stable graft fixation. The osteoconductive macroporous grafts guided bone formation throughout the defect as early as 4 weeks after implantation; new bone remodeling correlated with rates of scaffold composition-dependent degradation. A single dose of 400-ng recombinant human bone morphogenetic protein-2/7 heterodimer delivered via the graft accelerated bone regeneration bridging throughout the entire defect by 4 weeks after delivery. Full restoration of torsional integrity and complete scaffold resorption were achieved by 12 to 16 weeks after surgery. This biomaterial platform enables personalized bone regeneration with improved surgical handling, in vivo efficacy and safety.
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Lang A, Kirchner M, Stefanowski J, Durst M, Weber MC, Pfeiffenberger M, Damerau A, Hauser AE, Hoff P, Duda GN, Buttgereit F, Schmidt-Bleek K, Gaber T. Collagen I-based scaffolds negatively impact fracture healing in a mouse-osteotomy-model although used routinely in research and clinical application. Acta Biomater 2019; 86:171-184. [PMID: 30616076 DOI: 10.1016/j.actbio.2018.12.043] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 12/20/2018] [Accepted: 12/26/2018] [Indexed: 12/22/2022]
Abstract
Although several biomaterials for bone regeneration have been developed in the last decades, clinical application of bone morphogenetic protein 2 is clinically only approved when applied on an absorbable bovine collagen I scaffold (ACS) (Helistat; ACS-H). In research, another ACS, namely Lyostypt (ACS-L) is frequently used as a scaffold in bone-linked studies. Nevertheless, until today, the influence of ACS alone on bone healing remains unknown. Unexpectedly, in vitro studies using ASC-H revealed a suppression of osteogenic differentiation and a significant reduction of cell vitality when compared to ASC-L. In mice, we observed a significant delay in bone healing when applying ACS-L in the fracture gap during femoral osteotomy. The results of our study show for the first time a negative influence of both ACS-H and ACS-L on bone formation demonstrating a substantial need for more sophisticated delivery systems for local stimulation of bone healing in both clinical application and research. STATEMENT OF SIGNIFICANCE: Our study provides evidence-based justification to promote the development and approval of more suitable and sophisticated delivery systems in bone healing research. Additionally, we stimulate researchers of the field to consider that the application of those scaffolds as a delivery system for new substances represents a delayed healing approach rather than a normal bone healing which could greatly impact the outcome of those studies and play a pivotal role in the translation to the clinics. Moreover, we provide impulses on underlying mechanism involving the roles of small-leucine rich proteoglycans (SLRP) for further detailed investigations.
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Rapid initiation of guided bone regeneration driven by spatiotemporal delivery of IL-8 and BMP-2 from hierarchical MBG-based scaffold. Biomaterials 2019; 196:122-137. [DOI: 10.1016/j.biomaterials.2017.11.011] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 10/28/2017] [Accepted: 11/11/2017] [Indexed: 01/22/2023]
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Zhang Y, Yang W, Devit A, van den Beucken JJJP. Efficiency of coculture with angiogenic cells or physiological BMP-2 administration on improving osteogenic differentiation and bone formation of MSCs. J Biomed Mater Res A 2018; 107:643-653. [PMID: 30458064 DOI: 10.1002/jbm.a.36581] [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: 10/04/2018] [Accepted: 11/15/2018] [Indexed: 01/10/2023]
Abstract
Cell-based bone regeneration with mesenchymal stem cells (MSCs) represents the current challenge toward repair of bone defects and fractures. The supposed hurdles for satisfactory performance of cell-based constructs include inadequate vascularization and osteogenic signals. Considering the reported beneficial role of angiogenic cells in promoting vascularization and osteogenic differentiation and the osteogenic potential of bone morphogenetic protein 2 (BMP-2), we here evaluated the efficiency of coculture with angiogenic cells or a physiological dose of BMP-2 on improving osteogenic differentiation of MSCs and bone formation in vivo. In three dimensional (3D) collagen hydrogels in vitro, cocultured human umbilical vein endothelial cells (HUVECs) in a 1:1 ratio or with a physiological dose of BMP-2 (2 ng/μL) promoted the osteogenic potential of MSCs evidenced by enhanced alkaline phosphatase activity and gene expression of osteogenic markers. Notably, HUVECs evoked similar osteogenic stimulation as BMP-2, albeit in a delayed manner. When their bone formation capacity was further evaluated in a mouse subcutaneous implantation model, MSCs with BMP-2 demonstrated the highest efficiency with reproducible bone formation. In contrast, MSCs cocultured with HUVECs constructs displayed substantial blood vessel-like structures with fibrous tissue rather than ectopic bone as MSC monoculture controls. Our findings confirm the priority of generating cell-based bone constructs with physiological BMP-2 administration and indicate the potential of using angiogenic cells to develop vascularized constructs. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 643-653, 2019.
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Affiliation(s)
- Yang Zhang
- Department of Biomaterials, Radboudumc, Nijmegen, the Netherlands
| | - Wanxun Yang
- Department of Biomaterials, Radboudumc, Nijmegen, the Netherlands
| | - Amar Devit
- Department of Biomaterials, Radboudumc, Nijmegen, the Netherlands.,Faculty of Medical Science, Radboud University, Nijmegen, the Netherlands
| | - Jeroen J J P van den Beucken
- Department of Biomaterials, Radboudumc, Nijmegen, the Netherlands.,Radboud Institute of Molecular Life Sciences (RIMLS), Theme Reconstructive & Regenerative Medicine, Nijmegen, the Netherlands
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Kim JJ, Ben Amara H, Park JC, Kim S, Kim TI, Seol YJ, Lee YM, Ku Y, Rhyu IC, Koo KT. Biomodification of compromised extraction sockets using hyaluronic acid and rhBMP-2: An experimental study in dogs. J Periodontol 2018; 90:416-424. [PMID: 30421791 DOI: 10.1002/jper.18-0348] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/12/2018] [Accepted: 09/23/2018] [Indexed: 01/03/2023]
Abstract
BACKGROUND This experimental study aims to evaluate the effect of hyaluronic acid on healing of infected extraction sockets compared with recombinant human bone morphogenetic protein-2 (rhBMP-2). METHODS Both third and fourth mandibular premolars of six beagle dogs were hemisected, and the distal roots were extracted at baseline. Subsequently, combined endodontic-periodontic lesions were induced at the remaining mesial roots. After 4 months, the mesial roots on both sides of the mandible were removed. Four sockets per dog were randomly allocated to four groups: Group 1, Control; Group 2, only absorbable collagen sponge (ACS: carrier); Group 3, 1% hyaluronic acid (HA) gel + ACS; and Group 4, rhBMP-2 + ACS. After 3 months of healing, the dogs were euthanized for microcomputed tomography and histologic analysis. RESULTS After the lesion induction period (4 months), communication between the periodontal lesion and endodontic periapical lesion was observed at all remaining mesial roots. Alveolar bone overgrowth was observed in groups 3 and 4, but bone volume density was not significantly different among all groups. At the crestal portion, mineralization, and osteocalcin expression were higher in groups 3 and 4 than in groups 1 and 2. CONCLUSION Treatment with HA can promote bone formation and improve the wound healing rate comparable to rhBMP-2 in infected extraction sockets.
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Affiliation(s)
- Jung-Ju Kim
- Department of Periodontology, Graduate school, School of Dentistry, Seoul National University, Seoul, Korea
| | - Heithem Ben Amara
- Department of Periodontology, Graduate school, School of Dentistry, Seoul National University, Seoul, Korea
| | - Jung-Chul Park
- Department of Periodontology, College of Dentistry, Dankook University, Cheonansi, Korea
| | - Sungtae Kim
- Department of Periodontology, Graduate school, School of Dentistry, Seoul National University, Seoul, Korea
| | - Tae-Il Kim
- Department of Periodontology, Graduate school, School of Dentistry, Seoul National University, Seoul, Korea
| | - Yang-Jo Seol
- Department of Periodontology, Graduate school, School of Dentistry, Seoul National University, Seoul, Korea
| | - Yong-Moo Lee
- Department of Periodontology, Graduate school, School of Dentistry, Seoul National University, Seoul, Korea
| | - Young Ku
- Department of Periodontology, Graduate school, School of Dentistry, Seoul National University, Seoul, Korea
| | - In-Chul Rhyu
- Department of Periodontology, Graduate school, School of Dentistry, Seoul National University, Seoul, Korea
| | - Ki-Tae Koo
- Department of Periodontology, Graduate school, School of Dentistry, Seoul National University, Seoul, Korea
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Lee YH, Lee BW, Jung YC, Yoon BI, Woo HM, Kang BJ. Application of alginate microbeads as a carrier of bone morphogenetic protein-2 for bone regeneration. J Biomed Mater Res B Appl Biomater 2018; 107:286-294. [PMID: 29569344 DOI: 10.1002/jbm.b.34119] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 02/21/2018] [Accepted: 03/08/2018] [Indexed: 01/13/2023]
Abstract
Bone morphogenetic protein-2 (BMP-2) is commonly used to enhance bone regeneration. The potential of BMP-2 for bone regeneration varies according to the concentration and release kinetics on the implanted site. Therefore, it is important to determine appropriate carriers of BMP-2. However, no optimal delivery vehicles have been identified. In the present study, we used alginate microbeads as a delivery vehicle for BMP-2. Alginate microbeads can be implanted onto the disease site through surgery or injection. The objective of this study was to evaluate that the osteoinductive properties of BMP-2 are effective in alginate microbeads as a carrier. In this study, the release kinetics of BMP-2 in alginate microbeads was evaluated using an enzyme-linked immunosorbent assay. BMP-2 released from alginate microbeads induced high alkaline phosphatase activity in canine adipose tissue-derived mesenchymal stem cells. Injection of alginate microbeads with BMP-2 into mouse subcutaneous tissue, as well as surgical implantation into the 5-mm circular calvarial defects in rats, was conducted and the results showed extensive new bone formation. In conclusion, alginate microbeads can be utilized as an effective BMP-2 delivery vehicle for use in orthopedic surgery and as an injectable vehicle for a minimally invasive therapy. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 107B: 286-294, 2019.
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Affiliation(s)
- Yun Hwan Lee
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Byung-Woo Lee
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | | | - Byung-Il Yoon
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Heung-Myong Woo
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Byung-Jae Kang
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
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Song J, Kim J, Woo HM, Yoon B, Park H, Park C, Kang BJ. Repair of rabbit radial bone defects using bone morphogenetic protein-2 combined with 3D porous silk fibroin/β-tricalcium phosphate hybrid scaffolds. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2018; 29:716-729. [DOI: 10.1080/09205063.2018.1438126] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jaeyong Song
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Junhyung Kim
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Heung-Myung Woo
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Byungil Yoon
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Hyunjung Park
- Nano-Bio Regenerative Medical Institute, School of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Chanhum Park
- Nano-Bio Regenerative Medical Institute, School of Medicine, Hallym University, Chuncheon, Republic of Korea
| | - Byung-Jae Kang
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Republic of Korea
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Sugawara A, Fujikawa K, Sato S. Evaluation of Biphasic Calcium Phosphate Cement in Rat Calvarial Model. J HARD TISSUE BIOL 2018. [DOI: 10.2485/jhtb.27.109] [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)
| | - Kenji Fujikawa
- Department of Periodontology, Nihon University School of Dentistry
- Fujikawa Dental Clinic
| | - Shuichi Sato
- Department of Periodontology, Nihon University School of Dentistry
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18
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Prolonged delivery of BMP-2 by a non-polymer hydrogel for bone defect regeneration. Drug Deliv Transl Res 2017; 8:178-190. [DOI: 10.1007/s13346-017-0451-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Mohan S, Raghavendran HB, Karunanithi P, Murali MR, Naveen SV, Talebian S, Mehrali M, Mehrali M, Natarajan E, Chan CK, Kamarul T. Incorporation of Human-Platelet-Derived Growth Factor-BB Encapsulated Poly(lactic-co-glycolic acid) Microspheres into 3D CORAGRAF Enhances Osteogenic Differentiation of Mesenchymal Stromal Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:9291-9303. [PMID: 28266827 DOI: 10.1021/acsami.6b13422] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Tissue engineering aims to generate or facilitate regrowth or healing of damaged tissues by applying a combination of biomaterials, cells, and bioactive signaling molecules. In this regard, growth factors clearly play important roles in regulating cellular fate. However, uncontrolled release of growth factors has been demonstrated to produce severe side effects on the surrounding tissues. In this study, poly(lactic-co-glycolic acid) (PLGA) microspheres (MS) incorporated three-dimensional (3D) CORAGRAF scaffolds were engineered to achieve controlled release of platelet-derived growth factor-BB (PDGF-BB) for the differentiation of stem cells within the 3D polymer network. Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, scanning electron microscopy, and microtomography were applied to characterize the fabricated scaffolds. In vitro study revealed that the CORAGRAF-PLGA-PDGF-BB scaffold system enhanced the release of PDGF-BB for the regulation of cell behavior. Stromal cell attachment, viability, release of osteogenic differentiation markers such as osteocalcin, and upregulation of osteogenic gene expression exhibited positive response. Overall, the developed scaffold system was noted to support rapid cell expansion and differentiation of stromal cells into osteogenic cells in vitro for bone tissue engineering applications.
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Affiliation(s)
- Saktiswaren Mohan
- Tissue Engineering Group (TEG), National Orthopaedic Centre of Excellence in Research and Learning (NOCERAL), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya , Kuala Lumpur 50603, Malaysia
| | - Hanumantharao Balaji Raghavendran
- Tissue Engineering Group (TEG), National Orthopaedic Centre of Excellence in Research and Learning (NOCERAL), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya , Kuala Lumpur 50603, Malaysia
| | - Puvanan Karunanithi
- Tissue Engineering Group (TEG), National Orthopaedic Centre of Excellence in Research and Learning (NOCERAL), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya , Kuala Lumpur 50603, Malaysia
| | - Malliga Raman Murali
- Tissue Engineering Group (TEG), National Orthopaedic Centre of Excellence in Research and Learning (NOCERAL), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya , Kuala Lumpur 50603, Malaysia
| | - Sangeetha Vasudevaraj Naveen
- Tissue Engineering Group (TEG), National Orthopaedic Centre of Excellence in Research and Learning (NOCERAL), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya , Kuala Lumpur 50603, Malaysia
| | - Sepehr Talebian
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, University of Wollongong , Wollongong, New South Wales 2522, Australia
| | - Mohammad Mehrali
- Process and Energy Department, Delft University of Technology , Leeghwaterstraat 39, Delft 2628 CB, The Netherlands
| | - Mehdi Mehrali
- DTU Nanotech, Department of Micro- and Nanotechnology, Center for Nanomedicine and Theranostics, Technical University of Denmark , Kongens Lyngby 2800, Denmark
| | - Elango Natarajan
- Mechanical Engineering Department, Faculty of Engineering, UCSI University , Technology and Built Environment, Kuala Lumpur 506000, Malaysia
| | - Chee Ken Chan
- Tissue Engineering Group (TEG), National Orthopaedic Centre of Excellence in Research and Learning (NOCERAL), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya , Kuala Lumpur 50603, Malaysia
| | - Tunku Kamarul
- Tissue Engineering Group (TEG), National Orthopaedic Centre of Excellence in Research and Learning (NOCERAL), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya , Kuala Lumpur 50603, Malaysia
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Bone Regenerative Efficacy of Limited-Dose Escherichia Coli-Derived rhBMP-2 With Biphasic Calcium Phosphate Carrier in Rabbit Calvarial Defect Model. IMPLANT DENT 2017; 25:16-23. [PMID: 26606286 DOI: 10.1097/id.0000000000000364] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE The aim of this study was to characterize the healing in rabbit calvarial bone defects after delivery of limited-dose (1.5 μg) Escherichia coli-derived recombinant human bone morphogenetic protein-2 (ErhBMP-2), and evaluate biphasic calcium phosphate (BCP) as a carrier. MATERIALS AND METHODS Four 8-mm diameter circular calvarial bone defects were made in 16 rabbits and filled with one of the following: (1) nothing, (2) BCP alone, (3) ErhBMP-2-loaded absorbable collagen sponge (ACS), or (4) ErhBMP-2-loaded BCP. The animals were allowed to heal for either 2 or 8 weeks and were evaluated in clinical, microcomputed tomographic, histological, and histomorphometric analyses. RESULTS Microcomputed tomography revealed extensive new bone formation in both of the limited-dose ErhBMP-2-loaded groups. However, bony collapse of the upper defect borders was found in the ErhBMP-2-loaded ACS group. Histomorphometric examination revealed significantly greater new bone formation at 8 weeks than at 2 weeks in all 4 groups (P < 0.05). Both new bone formation and the size of the augmented area differed significantly between the ErhBMP-2-loaded BCP group (6.88 ± 0.74 and 19.62 ± 0.77) and the ErhBMP-2-loaded ACS group (3.04 ± 0.27 and 5.41 ± 0.43) at 8 weeks of healing. CONCLUSION ErhBMP-2 promotes bone regeneration in rabbit calvarial defects, even at a limited dose (1.5 μg). The results of this study suggest that BCP is the more efficient carrier for this protein than ACS.
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Preativatanyou K, Honsawek S. RhBMP-2 and -7 combined with absorbable collagen sponge carrier enhance ectopic bone formation: An in vivo bioassay. ASIAN BIOMED 2017. [DOI: 10.5372/1905-7415.0501.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Abstract
Background: Recombinant human bone morphogenetic proteins (rhBMPs) have been characterized especially chondrogenic and osteogenic activity both in vitro and in vivo studies. However, delivery of more than one growth factor by sustained release carrier to orthopedic site has yet been questionable in terms of efficacy and synergism.
Objective: Evaluate osteoinductivity and synergistic effect of rhBMP-2 and -7 using absorbable collagen sponge (ACS) carrier system in vivo.
Methods: cDNA of BMP-2 and -7 active domains were cloned and expressed in Escherichia coli BL21 StarTM (DE3) using pRSETc expression system. Then, the purified rhBMPs were loaded onto ACS and evaluated by in vivo rat subcutaneous bioassay. Two and eight weeks postoperatively, all treated groups were histologically verified for evidence of new bone formation and neovascularization by hematoxylin-eosin staining and light microscopy.
Results: The Wistar rat treated with rhBMP-2 or -7/ACS exhibited new bone formation, compared to ACS control. The group treated with ACS supplemented with both rhBMP-2 and -7 significantly showed the osteoid matrix very well-organized into trabeculae-like structure with significant blood vessel invasion.
Conclusion: The osteogenic induction of rhBMPs was combined with ACS carrier in the in vivo bioassay. In addition, the combination of both two potent recombinant osteoinductive cytokines, rhBMP-2 and -7, with ACS carrier demonstrated synergistic effect and might be a more promising and effective choice for therapeutic applications.
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Affiliation(s)
- Kanok Preativatanyou
- Department of Parasitology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sittisak Honsawek
- Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
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Singh R, Rohilla R, Gawande J, Kumar Sehgal P. To evaluate the role of platelet-rich plasma in healing of acute diaphyseal fractures of the femur. Chin J Traumatol 2017; 20:39-44. [PMID: 28202370 PMCID: PMC5343097 DOI: 10.1016/j.cjtee.2016.03.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Revised: 03/12/2016] [Accepted: 03/20/2016] [Indexed: 02/04/2023] Open
Abstract
PURPOSE New research is focusing on the use of autologous growth factors to increase the effect of bone fracture healing while decreasing the amount of healing time for the patient. Platelets have been demonstrated to be the natural storage vessel for several growth factors and cytokines that promote blood coagulation, tissue repair, and the process of bone mineralization. The present study aims to evaluate the role of platelet-rich plasma (PRP) in healing of acute femoral shaft fractures radiologically. We hypothesize that it provides artificial hematoma and releases various growth factors. METHODS This prospective randomized study was carried out in 72 patients of traumatic fracture of the femoral shaft operated with interlocking nails (closed or open). Patients were divided into two groups: study group A (n = 33) treated with intramedullary nailing & PRP injection/gel application in the same setting; and control group B (n = 39) treated with intramedullary nailing without PRP application. Both groups were further divided into two subgroups. Study group included subgroup A1 (n = 14) operated with closed intramedullary nailing and PRP injection at the fracture site under radiological control, and subgroup A2 (n = 19) operated with open intramedullary nailing and PRP gel along with fibrin membrane application at the fracture site; while control group included subgroup B1 (n = 16) operated with closed intramedullary nailing, and subgroup B2 (n = 23) operated with open intramedullary nailing. Radiological assessment of fracture healing was done by measuring the cortex to callus ratio every month till union at 6 months. RESULTS Measurements of mean cortex to callus ratio revealed significant difference between the groups A & B at third and fourth months. Measurements of mean cortex to callus ratio did not reveal significant difference between the subgroups at first and sixth months. A statistically significant difference was observed between subgroups A1 & B2 and B1 & B2 at the second month; between subgroups A1 & B2, A2 & B2 and B1 & B2 at the third month; and between subgroups A1 & B2 at fourth and fifth months. CONCLUSION PRP has no effect on femoral shaft fracture healing treated with closed intramedullary nailing. However, PRP and matrix scaffold provided by fibrin membrane may provide an artificial hematoma effect in the initial phase of healing in open or failed closed intramedullary nailing.
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Affiliation(s)
- Roop Singh
- Department of Orthopaedic Surgery, Paraplegia & Rehabilitation, Pt. B.D. Sharma PGIMS, Rohtak 124001, Haryana, India,Corresponding author. Fax: +91 1262 21308.
| | - Rajesh Rohilla
- Department of Orthopaedic Surgery, Paraplegia & Rehabilitation, Pt. B.D. Sharma PGIMS, Rohtak 124001, Haryana, India
| | - Jeetesh Gawande
- Department of Orthopaedic Surgery, Paraplegia & Rehabilitation, Pt. B.D. Sharma PGIMS, Rohtak 124001, Haryana, India
| | - Paramjit Kumar Sehgal
- Department of Blood Transfusion, Pt. B.D. Sharma PGIMS, Rohtak 124001, Haryana, India
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Badhiwala JH, Fehlings MG. Use of OP-1 (rhBMP-7) in posterolateral lumbar arthrodesis. JOURNAL OF SPINE SURGERY 2017; 2:338-344. [PMID: 28097254 DOI: 10.21037/jss.2016.12.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jetan H Badhiwala
- Division of Neurosurgery and Spinal Program, Department of Surgery, Krembil Neuroscience Center, Toronto Western Hospital, Toronto, Ontario, Canada
| | - Michael G Fehlings
- Division of Neurosurgery and Spinal Program, Department of Surgery, Krembil Neuroscience Center, Toronto Western Hospital, Toronto, Ontario, Canada
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Lee JS, Jung GU, Pang EK. Effects of block bone substitutes loaded with Escherichia Coli-produced recombinant human bone morphogenetic protein-2 on space maintenance and bone formation in rat calvarial onlay model. Tissue Eng Regen Med 2016; 13:311-321. [PMID: 30603413 PMCID: PMC6170820 DOI: 10.1007/s13770-016-0011-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 04/05/2016] [Accepted: 04/08/2016] [Indexed: 12/01/2022] Open
Abstract
We aimed to evaluate the effects of onlay-type grafted human freeze-dried corticocancellous bone block (FDBB) and deproteinized bovine bone with collagen (DBBC) loaded with Escherichia coli-produced recombinant human bone morphogenetic protein-2 (ErhBMP-2) on space maintenance and new bone formation in rat calvaria. Collagen sponge (CS), FDBB, or DBBC disks (8×4 mm) with ErhBMP-2 (2.5 μg) were implanted onto the calvaria of male Sprague-Dawley rats, whereas CS with buffer was implanted onto the calvaria as controls (n=20/carrier). Rats were killed at 2 or 8 weeks post-surgery for histologic and histomorphometric analyses; total augmented area, new bone area, and bone density were evaluated. At both time-points, all ErhBMP-2 groups showed significantly higher new bone area and bone density than the control group (p<0.05). ErhBMP-2/FDBB and ErhBMP-2/DBBC groups showed significantly higher total augmented area than ErhBMP-2/CS group (8 weeks), and ErhBMP-2/FDBB group showed significantly higher new bone area and bone density than ErhBMP-2/DBBC group (p<0.05). ErhBMP-2/CS group showed the highest bone density (p<0.05). Combining ErhBMP-2 with FDBB or DBBC could significantly improve onlay graft outcomes, by new bone formation and bone density increase. Moreover, onlay-grafted FDBB and DBBC with ErhBMP-2 could be an alternative to autogenous block onlay bone graft.
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Affiliation(s)
- Jae-Sook Lee
- Department of Periodontology, School of Medicine, Ewha Womans University, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul, 09785 Korea
| | - Gyu-Un Jung
- Department of Periodontology, Mokdong Hospital, Ewha Womans University, Seoul, Korea
| | - Eun-Kyoung Pang
- Department of Periodontology, School of Medicine, Ewha Womans University, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul, 09785 Korea
- Department of Periodontology, Mokdong Hospital, Ewha Womans University, Seoul, Korea
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Um IW, Hwang SH, Kim YK, Kim MY, Jun SH, Ryu JJ, Jang HS. Demineralized dentin matrix combined with recombinant human bone morphogenetic protein-2 in rabbit calvarial defects. J Korean Assoc Oral Maxillofac Surg 2016; 42:90-8. [PMID: 27162749 PMCID: PMC4860385 DOI: 10.5125/jkaoms.2016.42.2.90] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 03/08/2016] [Accepted: 03/13/2016] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVES The aim of this study was to compare the osteogenic effects of demineralized dentin matrix (DDM) combined with recombinant human bone morphogenetic protein-2 (rhBMP-2) in rabbit calvarial defects with DDM and anorganic bovine bone (ABB) combined with rhBMP-2. MATERIALS AND METHODS Four round defects with 8-mm diameters were created in each rabbit calvaria. Each defect was treated with one of the following: 1) DDM, 2) ABB/rhBMP-2, or 3) DDM/rhBMP-2. The rhBMP-2 was combined with DDM and ABB according to a stepwise dry and dip lyophilizing protocol. Histological and microcomputed tomography (µCT) analyses were performed to measure the amount of bone formation and bone volume after 2- and 8-week healing intervals. RESULTS Upon histological observation at two weeks, the DDM and ABB/rhBMP-2 groups showed osteoconductive bone formation, while the DDM/rhBMP-2 group showed osteoconductive and osteoinductive bone formation. New bone formation was higher in DDM/rhBMP-2, DDM and ABB decreasing order. The amounts of bone formation were very similar at two weeks; however, at eight weeks, the DDM/rhBMP-2 group showed a two-fold greater amount of bone formation compared to the DDM and ABB/rhBMP-2 groups. The µCT analysis showed markedly increased bone volume in the DDM/rhBMP-2 group at eight weeks compared with that of the DDM group. Notably, there was a slight decrease in bone volume in the ABB/rhBMP-2 group at eight weeks. There were no significant differences among the DDM, ABB/rhBMP-2, and DDM/rhBMP-2 groups at two or eight weeks. CONCLUSION Within the limitations of this study, DDM appears to be a suitable carrier for rhBMP-2 in orthotopic sites.
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Affiliation(s)
- In-Woong Um
- R&D Institute, Korea Tooth Bank, Seoul, Korea
| | - Suk-Hyun Hwang
- Department of Medicine, Korea University Graduate School, Seoul, Korea
| | - Young-Kyun Kim
- Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Moon-Young Kim
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Dankook University, Cheonan, Korea
| | - Sang-Ho Jun
- Department of Dentistry, Korea University Anam Hospital, Seoul, Korea
| | - Jae-Jun Ryu
- Department of Dentistry, Korea University Anam Hospital, Seoul, Korea
| | - Hyon-Seok Jang
- Department of Dentistry, Korea University Ansan Hospital, Ansan, Korea
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Rao H, Lu Z, Liu W, Wang Y, Ge H, Zou P, He H. The adsorption of bone-related proteins on calcium phosphate ceramic particles with different phase composition and its adsorption kinetics. SURF INTERFACE ANAL 2016. [DOI: 10.1002/sia.6021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hanbing Rao
- College of Science; Sichuan Agricultural University; Ya'an 625014 China
| | - Zhiwei Lu
- College of Science; Sichuan Agricultural University; Ya'an 625014 China
| | - Wei Liu
- College of Science; Sichuan Agricultural University; Ya'an 625014 China
| | - Yanying Wang
- College of Science; Sichuan Agricultural University; Ya'an 625014 China
| | - Hongwei Ge
- College of Science; Sichuan Agricultural University; Ya'an 625014 China
| | - Ping Zou
- College of Science; Sichuan Agricultural University; Ya'an 625014 China
| | - Hua He
- Animal Genetics and Breeding Institute of Sichuan Agricultural University; Sichuan Ya'An 625014 China
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Cheng TL, Murphy CM, Ravarian R, Dehghani F, Little DG, Schindeler A. Bisphosphonate-adsorbed ceramic nanoparticles increase bone formation in an injectable carrier for bone tissue engineering. J Tissue Eng 2015; 6:2041731415609448. [PMID: 26668709 PMCID: PMC4669987 DOI: 10.1177/2041731415609448] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 09/09/2015] [Indexed: 12/23/2022] Open
Abstract
Sucrose acetate isobutyrate (SAIB) is a sugar-based carrier. We have previously applied SAIB as a minimally invasive system for the co-delivery of recombinant human bone morphogenetic protein-2 (rhBMP-2) and found synergy when co-delivering zoledronic acid (ZA) and hydroxyapatite (HA) nanoparticles. Alternative bioceramics were investigated in a murine SAIB/rhBMP-2 injection model. Neither beta-tricalcium phosphate (TCP) nor Bioglass (BG) 45S5 had a significant effect on bone volume (BV) alone or in combination with the ZA. 14C-labelled ZA binding assays showed particle size and ceramic composition affected binding with nano-HA > micro-HA > TCP > BG. Micro-HA and nano-HA increased BV in a rat model of rhBMP-2/SAIB injection (+278% and +337%), and BV was further increased with ZA–adsorbed micro-HA and nano-HA (+530% and +889%). These data support the use of ZA–adsorbed nanoparticle-sized HA as an optimal additive for the SAIB/rhBMP-2 injectable system for bone tissue engineering.
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Affiliation(s)
- Tegan L Cheng
- Orthopaedic Research and Biotechnology Unit, The Children's Hospital at Westmead, Westmead, NSW, Australia ; Discipline of Paediatrics and Child Health, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Ciara M Murphy
- Orthopaedic Research and Biotechnology Unit, The Children's Hospital at Westmead, Westmead, NSW, Australia ; Discipline of Paediatrics and Child Health, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Roya Ravarian
- School of Chemical and Biomolecular Engineering, University of Sydney, Sydney, NSW, Australia
| | - Fariba Dehghani
- School of Chemical and Biomolecular Engineering, University of Sydney, Sydney, NSW, Australia
| | - David G Little
- Orthopaedic Research and Biotechnology Unit, The Children's Hospital at Westmead, Westmead, NSW, Australia ; Discipline of Paediatrics and Child Health, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Aaron Schindeler
- Orthopaedic Research and Biotechnology Unit, The Children's Hospital at Westmead, Westmead, NSW, Australia ; Discipline of Paediatrics and Child Health, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
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Zhao HY, Wu J, Zhu JJ, Xiao ZC, He CC, Shi HX, Li XK, Yang SL, Xiao J. Research Advances in Tissue Engineering Materials for Sustained Release of Growth Factors. BIOMED RESEARCH INTERNATIONAL 2015; 2015:808202. [PMID: 26347885 PMCID: PMC4548067 DOI: 10.1155/2015/808202] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/28/2015] [Accepted: 08/02/2015] [Indexed: 12/04/2022]
Abstract
Growth factors are a class of cytokines that stimulate cell growth and are widely used in clinical practice, such as wound healing, revascularization, bone repair, and nervous system disease. However, free growth factors have a short half-life and are instable in vivo. Therefore, the search of excellent carriers to enhance sustained release of growth factors in vivo has become an area of intense research interest. The development of controlled-release systems that protect the recombinant growth factors from enzymatic degradation and provide sustained delivery at the injury site during healing should enhance the growth factor's application in tissue regeneration. Thus, this study reviews current research on commonly used carriers for sustained release of growth factors and their sustained release effects for preservation of their bioactivity and their accomplishment in tissue engineering approaches.
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Affiliation(s)
- Hai-yang Zhao
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
- Molecular Pharmacology Research Center, Key Laboratory of Biotechnology and Pharmaceutical Engineering, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Jiang Wu
- Molecular Pharmacology Research Center, Key Laboratory of Biotechnology and Pharmaceutical Engineering, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Jing-jing Zhu
- Molecular Pharmacology Research Center, Key Laboratory of Biotechnology and Pharmaceutical Engineering, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Ze-cong Xiao
- Molecular Pharmacology Research Center, Key Laboratory of Biotechnology and Pharmaceutical Engineering, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Chao-chao He
- Molecular Pharmacology Research Center, Key Laboratory of Biotechnology and Pharmaceutical Engineering, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Hong-xue Shi
- Molecular Pharmacology Research Center, Key Laboratory of Biotechnology and Pharmaceutical Engineering, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Xiao-kun Li
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
- Molecular Pharmacology Research Center, Key Laboratory of Biotechnology and Pharmaceutical Engineering, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Shu-lin Yang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Jian Xiao
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
- Molecular Pharmacology Research Center, Key Laboratory of Biotechnology and Pharmaceutical Engineering, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
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Li J, Jin L, Wang M, Zhu S, Xu S. Repair of rat cranial bone defect by using bone morphogenetic protein-2-related peptide combined with microspheres composed of polylactic acid/polyglycolic acid copolymer and chitosan. Biomed Mater 2015; 10:045004. [DOI: 10.1088/1748-6041/10/4/045004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sun J, Li J, Li C, Yu Y. Role of bone morphogenetic protein-2 in osteogenic differentiation of mesenchymal stem cells. Mol Med Rep 2015; 12:4230-4237. [PMID: 26096280 PMCID: PMC4526091 DOI: 10.3892/mmr.2015.3954] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Accepted: 04/24/2015] [Indexed: 11/23/2022] Open
Abstract
Bone mesenchymal stem cells (BMSCs) have been an area of interest in biomedical research and tissue engineering due to their diverse differentiation abilities. In osteogenesis, bone morphogenetic proteins (BMPs), particularly BMP-2, are important. However, the effect of BMP-2 on the osteogenetic capacity of BMSCs remains to be fully elucidated. In the present study, primary rat BMSCs were infected with a recombinant lentivirus carrying the BMP-2 gene (Lenti-BMP-2), and the effects of BMP-2 on the activity of alkaline phosphatase (ALP) on days 3, 7, 14 and 21, and on mineralization on day 21 were evaluated. In addition, the adhesive ability of BMP-2-overexpressed BMSCs was detected using an adhesion assay. Following forced expression of BMP-2 in the BMSCs, the levels of osteogenic genes, including osteopontin (OPN), osteocalcin (OC) and collagen type I (Col-I), were detected and the nuclear accumulation of Runt-related transcription factor (Runx)-2 and phosphorylated small mothers against decapentaplegic (p-Smad) 1/5/8 was also evaluated. The results demonstrated that the rat BMSCs had been isolated, cultured and passaged from Sprague-Dawley rat bone marrow successfully, and the third-generation BMSCs were identified using flow cytometry with CD29 staining. The osteogenetic phenotype of the BMSCs, expressing ALP and osteocalcin, was significantly induced by BMP-2, and the proliferation of the BMSCs was enhanced by BMP-2. Furthermore, the adhesive potential of the BMP-2-overexpressed BMSCs was increased, the expression levels of OPN, OCN and Col-Ie osteogenetic factors were upregulated and the nuclear accumulation of Runx-2 and p-Smads1/5/8 were increased significantly. These data suggested that BMP-2 may facilitate the osteogenetic differentiation of rat BMSCs and provide a favorable cell resource for tissue engineering.
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Affiliation(s)
- Jian Sun
- Department of Dentistry, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
| | - Jieyun Li
- Department of Dentistry, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
| | - Chichi Li
- Department of Dentistry, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
| | - Youcheng Yu
- Department of Dentistry, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
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Bigham-Sadegh A, Oryan A. Selection of animal models for pre-clinical strategies in evaluating the fracture healing, bone graft substitutes and bone tissue regeneration and engineering. Connect Tissue Res 2015; 56:175-94. [PMID: 25803622 DOI: 10.3109/03008207.2015.1027341] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In vitro assays can be useful in determining biological mechanism and optimizing scaffold parameters, however translation of the in vitro results to clinics is generally hard. Animal experimentation is a better approximation than in vitro tests, and usage of animal models is often essential in extrapolating the experimental results and translating the information in a human clinical setting. In addition, usage of animal models to study fracture healing is useful to answer questions related to the most effective method to treat humans. There are several factors that should be considered when selecting an animal model. These include availability of the animal, cost, ease of handling and care, size of the animal, acceptability to society, resistance to surgery, infection and disease, biological properties analogous to humans, bone structure and composition, as well as bone modeling and remodeling characteristics. Animal experiments on bone healing have been conducted on small and large animals, including mice, rats, rabbits, dogs, pigs, goats and sheep. This review also describes the molecular events during various steps of fracture healing and explains different means of fracture healing evaluation including biomechanical, histopathological and radiological assessments.
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Affiliation(s)
- Amin Bigham-Sadegh
- Faculty of Veterinary Medicine, Department of Veterinary Surgery and Radiology, Shahrekord University , Shahrekord , Iran and
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32
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Guzel Y, Karalezli N, Bilge O, Kacira BK, Esen H, Karadag H, Toker S, Göncü RG, Doral MN. The biomechanical and histological effects of platelet-rich plasma on fracture healing. Knee Surg Sports Traumatol Arthrosc 2015; 23:1378-1383. [PMID: 24170188 DOI: 10.1007/s00167-013-2734-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Accepted: 10/14/2013] [Indexed: 02/01/2023]
Abstract
PURPOSE Platelet-rich plasma (PRP) includes growth factors and proteins that accelerate and stimulate bone regeneration and tissue recovery. The aim of this study was to evaluate the effects of PRP on fracture healing in terms of biomechanics and histology. METHODS Seventy female rats were included in this experimental study. They were divided into three groups: Group I (no PRP, n = 30), Group II (PRP added, n = 30) and Group III (control, n = 10). The left femurs of the rats in Groups I and II were osteotomized and fixed by K-wires. Although no additional intervention was performed on Group I rats, PRP was applied to the fracture sites of Group II rats. The remaining ten rats were used as the control group of the biomechanical test (Group III). In the fourth week, nine femurs from Group I and ten femurs from Group II, and in the ninth week, nine femurs from each group were removed, and bone recovery was assessed histologically according to Modified Lane-Sandhu histological scoring criteria. Three-point bending test was applied to femurs for biomechanical evaluation in the ninth week. RESULTS Histological healing was found to be significantly higher in Group II than in Group I (p < 0.05). Furthermore, biomechanical test results showed that healing quantity and bone strength were significantly better in Group II than in Group I (p < 0.05). CONCLUSION PRP is a widely studied material in the physiology of fracture healing. The results of this study demonstrated the ameliorative biomechanical effects of PRP on fracture healing, in addition to accelerating the histological union of fractures. In the light of these results, PRP could be a viable alternative to accelerate the healing of fractures, late unions or non-unions. LEVEL OF EVIDENCE Prospective comparative study, Level II.
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Affiliation(s)
- Yunus Guzel
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Ordu University, Ordu, Turkey.
| | - Nazım Karalezli
- Department of Orthopaedics and Traumatology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Onur Bilge
- Department of Orthopaedics and Traumatology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Burkay K Kacira
- Department of Orthopaedics and Traumatology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Hasan Esen
- Department of Pathology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Hakan Karadag
- Department of Mechanical Engineering, Faculty of Mechanical Engineering, Necmettin Erbakan University, Konya, Turkey
| | - Serdar Toker
- Department of Orthopaedics and Traumatology, Meram Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Recep Gani Göncü
- Department of Orthopaedics and Traumatology, Government Hospital of Beyhekim, Konya, Turkey
| | - Mahmut Nedim Doral
- Department of Orthopaedics and Traumatology, Hacettepe Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Hong JY, Kim MS, Lim HC, Lee JS, Choi SH, Jung UW. A high concentration of recombinant human bone morphogenetic protein-2 induces low-efficacy bone regeneration in sinus augmentation: a histomorphometric analysis in rabbits. Clin Oral Implants Res 2015; 27:e199-e205. [PMID: 25899917 DOI: 10.1111/clr.12603] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2015] [Indexed: 12/01/2022]
Abstract
OBJECTIVES The aim of the study was to elucidate the efficacy of bone regeneration at the early stage of healing in rabbit sinuses grafted with a biphasic calcium phosphate (BCP) carrier soaked in a high concentration of recombinant human bone morphogenetic protein-2 (rhBMP-2). MATERIALS AND METHODS Both maxillary sinuses of eight male rabbits were used. The sinus on one side (assigned randomly) was grafted with BCP loaded with rhBMP-2 (1.5 mg/ml; test group) using a soaking method, while the other was grafted with saline-soaked BCP (control group). After a 2-week healing period, the sinuses were analyzed by micro-computed tomography and histomorphometry. RESULTS The total augmented area and soft tissue space were significantly larger in the test group than in the control group, whereas the opposite was true for the area of residual material and newly formed bone. Most of the new bone in the test group was localized to the Schneiderian membrane (SM), while very little bone formation was observed in the window and center regions of the sinus. New bone was distributed evenly in the control group sinuses. CONCLUSION Within the limitations of this study, it appeared that application of a high concentration of rhBMP-2 soaked onto a BCP carrier inhibited bone regeneration from the pristine bone and increased soft tissue swelling and inflammatory response at the early healing stage of sinus augmentation, although osteoinductive potential was found along the SM.
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Affiliation(s)
- Ji-Youn Hong
- Department of Periodontology, School of Dentistry, Kyung Hee University, Seoul, Korea
| | - Min-Soo Kim
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Hyun-Chang Lim
- 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, South Korea
| | - Seong-Ho Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
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Bone Regeneration Using Bone Morphogenetic Proteins and Various Biomaterial Carriers. MATERIALS 2015; 8:1778-1816. [PMID: 28788032 PMCID: PMC5507058 DOI: 10.3390/ma8041778] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 03/24/2015] [Accepted: 03/27/2015] [Indexed: 01/28/2023]
Abstract
Trauma and disease frequently result in fractures or critical sized bone defects and their management at times necessitates bone grafting. The process of bone healing or regeneration involves intricate network of molecules including bone morphogenetic proteins (BMPs). BMPs belong to a larger superfamily of proteins and are very promising and intensively studied for in the enhancement of bone healing. More than 20 types of BMPs have been identified but only a subset of BMPs can induce de novo bone formation. Many research groups have shown that BMPs can induce differentiation of mesenchymal stem cells and stem cells into osteogenic cells which are capable of producing bone. This review introduces BMPs and discusses current advances in preclinical and clinical application of utilizing various biomaterial carriers for local delivery of BMPs to enhance bone regeneration.
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Masuda T, Otsu K, Kumakami-Sakano M, Fujiwara N, Ema M, Hitomi J, Sugiyama Y, Harada H. Combined Administration of BMP-2 and HGF Facilitate Bone Regeneration through Angiogenic Mechanisms. J HARD TISSUE BIOL 2015. [DOI: 10.2485/jhtb.24.7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Tomoyuki Masuda
- Division of Developmental Biology and Regenerative Medicine, Department of Anatomy, Iwate Medical University
- Division of Oral and Maxillofacial Surgery, Department of Reconstructive Oral and Maxillofacial Surgery, Iwate Medical University
| | - Keishi Otsu
- Division of Developmental Biology and Regenerative Medicine, Department of Anatomy, Iwate Medical University
| | - Mika Kumakami-Sakano
- Division of Developmental Biology and Regenerative Medicine, Department of Anatomy, Iwate Medical University
| | - Naoki Fujiwara
- Division of Developmental Biology and Regenerative Medicine, Department of Anatomy, Iwate Medical University
| | - Masatsugu Ema
- Research Center for Animal Life Science, Department of Stem Cells and Human Disease Models, Shiga University of Medical Science
| | - Jiro Hitomi
- Division of Human Embryology, Department of Anatomy, Iwate Medical University
| | - Yoshiki Sugiyama
- Division of Oral and Maxillofacial Surgery, Department of Reconstructive Oral and Maxillofacial Surgery, Iwate Medical University
| | - Hidemitsu Harada
- Division of Developmental Biology and Regenerative Medicine, Department of Anatomy, Iwate Medical University
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Jung UW, Lee IK, Park JY, Thoma DS, Hämmerle CHF, Jung RE. The efficacy of BMP-2 preloaded on bone substitute or hydrogel for bone regeneration at peri-implant defects in dogs. Clin Oral Implants Res 2014; 26:1456-65. [PMID: 25263966 DOI: 10.1111/clr.12491] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/27/2014] [Indexed: 12/12/2022]
Abstract
OBJECTIVES The objective of this experiment was to test whether or not a synthetic bone substitute (SBS) was more effective than a polyethylene glycol hydrogel as a carrier material for bone morphogenetic protein-2 (BMP-2) when attempting to regenerate bone. MATERIAL AND METHODS Two identical, box-type dehiscence defects (4 × 4 mm buccolingually and apicocoronally, and 8 mm mesiodistally) were surgically prepared on buccal sides of the left and right edentulous ridge in five beagle dogs. Following implant placement, the defects either received (i) no graft, (ii) SBS+hydrogel, (iii) SBS+BMP-2 loaded hydrogel, and (iv) BMP-2-loaded SBS+hydrogel. The animals were euthanized at 8 weeks postsurgery. Radiographic and histomorphometric analyses were performed. RESULTS The hydrogel alone was not able to stabilize the grafted bone particles at 8 weeks, and SBS+hydrogel group did not significantly differ from the control group in all volumetric measurements. On the other hand, extensively regenerated new bone was connected with most of the remaining SBS particles in the BMP-2 groups. The BMP-2 groups exhibited significantly greater new bone formation (10.65 mm(3) and 1.47 mm(2) in the SBS+BMP-2-loaded hydrogel group; 14.17 mm(3) and 0.93 mm(2) in the BMP-2-loaded SBS+hydrogel) than non-BMP-2 groups (1.27 mm(3) and 0.00 mm(2) in the control group; 2.01 mm(3) and 0.19 mm(2) in the SBS+hydrogel group) in volumetric and histomorphometric analyses (P < 0.001). However, there were no significant differences between both BMP-2 groups. CONCLUSION BMP-2 could yield enhanced bone regeneration in the critical-size peri-implant defects regardless of whether SBS or hydrogel is used for preloading, although the outcomes seem to be more reproducible with BMP-2 preloaded on SBS.
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Affiliation(s)
- Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - In-Kyeong Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Jin-Young Park
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Daniel S Thoma
- Department of Fixed and Removable Prosthodontics and Dental Material Science, Dental School, University of Zurich, Zurich, Switzerland
| | - Christoph H F Hämmerle
- Department of Fixed and Removable Prosthodontics and Dental Material Science, Dental School, University of Zurich, Zurich, Switzerland
| | - Ronald E Jung
- Department of Fixed and Removable Prosthodontics and Dental Material Science, Dental School, University of Zurich, Zurich, Switzerland
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Suárez-González D, Lee JS, Diggs A, Lu Y, Nemke B, Markel M, Hollister SJ, Murphy WL. Controlled multiple growth factor delivery from bone tissue engineering scaffolds via designed affinity. Tissue Eng Part A 2013; 20:2077-87. [PMID: 24350567 DOI: 10.1089/ten.tea.2013.0358] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
It is known that angiogenesis plays an important role in bone regeneration and that release of angiogenic and osteogenic growth factors can enhance bone formation. Multiple growth factors play key roles in processes that lead to tissue formation/regeneration during natural tissue development and repair. Therefore, treatments aiming to mimic tissue regeneration can benefit from multiple growth factor release, and there remains a need for simple clinically relevant approaches for dual growth factor release. We hypothesized that mineral coatings could be used as a platform for controlled incorporation and release of multiple growth factors. Specifically, mineral-coated scaffolds were "dip coated" in multiple growth factor solutions, and growth factor binding and release were dictated by the growth factor-mineral binding affinity. Beta tricalcium phosphate (β-TCP) scaffolds were fabricated using indirect solid-free form fabrication techniques and coated with a thin conformal mineral layer. Mineral-coated β-TCP scaffolds were sequentially dipped in recombinant human vascular endothelial growth factor (rhVEGF) and a modular bone morphogenetic peptide, a mineral-binding version of bone morphogenetic protein 2 (BMP2), solutions to allow for the incorporation of each growth factor. The dual release profile showed sustained release of both growth factors for over more than 60 days. Scaffolds releasing either rhVEGF alone or the combination of growth factors showed an increase in blood vessel ingrowth in a dose-dependent manner in a sheep intramuscular implantation model. This approach demonstrates a "modular design" approach, in which a controllable biologics carrier is integrated into a structural scaffold as a thin surface coating.
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Affiliation(s)
- Darilis Suárez-González
- 1 Department of Surgery, School of Medicine and Public Health, University of Wisconsin-Madison , Madison, Wisconsin
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Park JW, Kim JM, Lee HJ, Jeong SH, Suh JY, Hanawa T. Bone healing with oxytocin-loaded microporous β-TCP bone substitute in ectopic bone formation model and critical-sized osseous defect of rat. J Clin Periodontol 2013; 41:181-90. [PMID: 24256613 DOI: 10.1111/jcpe.12198] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2013] [Indexed: 12/26/2022]
Abstract
AIM This study investigated the efficacy of the hypothalamic nonapeptide oxytocin (OT) by direct delivery to local defects using a microporous β-tricalcium phosphate (TCP) as the carrier for the future applications as a method to achieve predictable bone regeneration of large osseous defects requiring sinus bone graft and guided bone regeneration procedures for implant placement. MATERIAL AND METHODS Both the ectopic and new bone formation induced by the OT-loaded microporous β-TCP powder was histomorphometrically compared with unloaded β-TCP in a subcutaneous ectopic bone formation model and calvarial critical-sized defects (CSDs) in 45 rats. RESULTS The OT-loaded β-TCP clearly enhanced ectopic bone formation compared with the unloaded control group. A High initial OT dose (250 μg) significantly increased ectopic bone formation at an early healing time-point compared with a lower OT dose (50 μg). The OT-loaded samples displayed greater new bone formation in the rat calvarial CSDs. Extensive new bone formation was achieved in the calvarial CSDs with the higher OT dose. CONCLUSION These results suggest that local OT delivery to bone substitute promotes new bone formation via an osteoinductive mode of action.
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Affiliation(s)
- Jin-Woo Park
- Department of Periodontology, School of Dentistry, Kyungpook National University, Daegu, Korea
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Chung EJ, Chien KB, Aguado BA, Shah RN. Osteogenic potential of BMP-2-releasing self-assembled membranes. Tissue Eng Part A 2013; 19:2664-73. [PMID: 23790163 PMCID: PMC3856670 DOI: 10.1089/ten.tea.2012.0667] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 06/20/2013] [Indexed: 11/12/2022] Open
Abstract
We report here the use of novel self-assembling collagen-hyaluronic acid (HyA) membranes to deliver bone morphogenetic protein-2 (BMP-2) for orthopedic applications. Prior work has demonstrated that collagen-HyA membranes are formed initially through electrostatic interactions between the oppositely charged collagen and HyA molecules, and that membrane growth is driven by osmotic pressure imbalances between the collagen and HyA solutions. The purpose of this study was to investigate the potential of incorporating charged growth factors such as BMP-2 within the membrane for regenerative medicine applications. Membrane material properties, protein mass loss, and release kinetics of BMP-2, as well as biocompatibility and osteogenic potential in vitro and in vivo using a subcutaneous mouse model were assessed. Scanning electron microscopy and mechanical testing confirmed no loss of structural or mechanical integrity upon BMP-2 incorporation into the membranes. Slow and steady release of the growth factor was demonstrated with 17% of total loaded BMP-2 released over the course of 49 days. To test biocompatibility and osteogenic potential in vitro, human mesenchymal stem cells were cultured on collagen-HyA membranes and showed greater proliferation rates (for up to 28 days) on membranes without BMP-2, but a greater alkaline phosphatase activity and osteocalcin production on membranes releasing BMP-2. In vivo subcutaneous implantation of the membranes showed a minimal immune response with osteoblasts and mineral deposits present in the ectopic site for BMP-2-releasing membranes, further demonstrating the potential of the BMP-2-releasing membranes to induce osteogenic differentiation. This study presents a novel strategy to create self-assembled membranes using two biocompatible molecules that can deliver bioactive agents in a sustained manner to induce a local regenerative response.
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Affiliation(s)
- Eun Ji Chung
- Institute for BioNanotechnology in Medicine, Northwestern University, Chicago, Illinois
| | - Karen B. Chien
- Institute for BioNanotechnology in Medicine, Northwestern University, Chicago, Illinois
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois
| | - Brian A. Aguado
- Institute for BioNanotechnology in Medicine, Northwestern University, Chicago, Illinois
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois
| | - Ramille N. Shah
- Institute for BioNanotechnology in Medicine, Northwestern University, Chicago, Illinois
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
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Maier GS, Roth KE, Andereya S, Birnbaum K, Niedhart C, Lühmann M, Ohnsorge J, Maus U. In vitro elution characteristics of gentamicin and vancomycin from synthetic bone graft substitutes. Open Orthop J 2013; 7:624-9. [PMID: 24285988 PMCID: PMC3841967 DOI: 10.2174/1874325001307010624] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 10/15/2013] [Accepted: 10/21/2013] [Indexed: 12/03/2022] Open
Abstract
Objects: Beta tricalciumphosphate pellets loaded with individualized antibiotics may represent novel options in the treatment of osteomyelitis and infectious bone disease. Here, the in vitro antibiotic elution of vancomycin and gentamicin from the synthetic bone graft substitutes Cerasorb® and Cerasorb M® was tested. Methods: Antibiotic elution and concentration of gentamcin and vancomycin were measured using photometrically-based measurement and homogeneous particle-enhanced turbidimetric inhibition immunoassays (PETINIA). Results: Initially both materials showed a high release of the loaded antibiotics, with Cerasorb M® showing lower release levels for gentamicin and vancomycin than Cerasorb®. Gentamicin concentrations of Cerasorb M granules and Cerasorb were below the minimum detectiontreshold until day four and six of the experiment respectively. The vancomycin release-level followed a similar pattern, although the vancomycin concentration eluted by Cerasorb M® granules stayed above the detection threshold during the experimental time. Conclusions: Cerasorb® and Cersorb M® may represent a new treatment option in osteomyelitis and infectious bone disease.
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Affiliation(s)
- Gerrit Steffen Maier
- Department of Orthopedic Surgery, Johannes-Guttenberg-University, Langenbeckstrasse 1, D-55131 Mainz, Germany
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Liu J, Mao K, Liu Z, Wang X, Cui F, Guo W, Mao K, Yang S. Injectable biocomposites for bone healing in rabbit femoral condyle defects. PLoS One 2013; 8:e75668. [PMID: 24146770 PMCID: PMC3797737 DOI: 10.1371/journal.pone.0075668] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 08/16/2013] [Indexed: 11/23/2022] Open
Abstract
A novel biomimetic bone scaffold was successfully prepared in this study, which was composed of calcium sulfate hemihydrate (CSH), collagen and nano-hydroxyapatite (nHAC). CSH/nHAC was prepared and observed with scanning electron microscope and rhBMP-2 was introduced into CSH/nHAC. The released protein content from the scaffold was detected using high performance liquid chromatography at predetermined time interval. In vivo bone formation capacity was investigated by means of implanting the scaffolds with rhBMP-2 or without rhBMP-2 respectively into a critical size defect model in the femoral condyle of rabbit. The releasing character of rhBMP-2 was that an initial burst release (37.5%) was observed in the first day, followed by a sustained release and reached 100% at the end of day 20. The CSH/nHAC showed a gradual decrease in degradation with the content of nHAC increase. The results of X-rays, Micro CT and histological observation indicated that more new bone was formed in rhBMP-2 group. The results implied that this new injectable bone scaffold should be very promising for bone repair and has a great potential in bone tissue engineering.
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Affiliation(s)
- Jianheng Liu
- Department of Orthopaedics, General Hospital of People's Liberation Army, Beijing, China
| | - Kezheng Mao
- Department of Orthopaedics, General Hospital of People's Liberation Army, Beijing, China
| | - Zhengsheng Liu
- Department of Orthopaedics, General Hospital of People's Liberation Army, Beijing, China
| | - Xiumei Wang
- Department of Materials Science and Engineering, Tsinghua University, Beijing, China
| | - Fuzhai Cui
- Department of Materials Science and Engineering, Tsinghua University, Beijing, China
| | - Wenguang Guo
- Beijing Olympic fine Pharmaceutical Technology Co., Ltd, Beijing, China
| | - Keya Mao
- Department of Orthopaedics, General Hospital of People's Liberation Army, Beijing, China
- * E-mail: (KM); (SY)
| | - Shuying Yang
- Department of Oral Biology, University at Buffalo - SUNY, Buffalo, New York, United States of America
- * E-mail: (KM); (SY)
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Influence of Acidic Fibroblast Growth Factor on Bone Regeneration in Experimental Cranial Defects Using Spongostan and Bio-Oss as Protein Carriers. J Craniofac Surg 2013; 24:1507-14. [DOI: 10.1097/scs.0b013e31828f2469] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Liu SSY, Xu H, Sun J, Kontogiorgos E, Whittington PR, Misner KG, Kyung HM, Buschang PH, Opperman LA. Recombinant human bone morphogenetic protein-2 stimulates bone formation during interfrontal suture expansion in rabbits. Am J Orthod Dentofacial Orthop 2013; 144:210-7. [DOI: 10.1016/j.ajodo.2013.03.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Revised: 03/01/2013] [Accepted: 03/01/2013] [Indexed: 10/26/2022]
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Sun X, Kang Y, Bao J, Zhang Y, Yang Y, Zhou X. Modeling vascularized bone regeneration within a porous biodegradable CaP scaffold loaded with growth factors. Biomaterials 2013; 34:4971-81. [PMID: 23566802 DOI: 10.1016/j.biomaterials.2013.03.015] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 03/06/2013] [Indexed: 01/08/2023]
Abstract
Osteogenetic microenvironment is a complex constitution in which extracellular matrix (ECM) molecules, stem cells and growth factors each interact to direct the coordinate regulation of bone tissue development. Importantly, angiogenesis improvement and revascularization are critical for osteogenesis during bone tissue regeneration processes. In this study, we developed a three-dimensional (3D) multi-scale system model to study cell response to growth factors released from a 3D biodegradable porous calcium phosphate (CaP) scaffold. Our model reconstructed the 3D bone regeneration system and examined the effects of pore size and porosity on bone formation and angiogenesis. The results suggested that scaffold porosity played a more dominant role in affecting bone formation and angiogenesis compared with pore size, while the pore size could be controlled to tailor the growth factor release rate and release fraction. Furthermore, a combination of gradient VEGF with BMP2 and Wnt released from the multi-layer scaffold promoted angiogenesis and bone formation more readily than single growth factors. These results demonstrated that the developed model can be potentially applied to predict vascularized bone regeneration with specific scaffold and growth factors.
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Affiliation(s)
- Xiaoqiang Sun
- School of Mathematical Science, Beijing Normal University, Beijing 100875, PR China.
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45
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Wang J, Zhang H, Zhu X, Fan H, Fan Y, Zhang X. Dynamic competitive adsorption of bone-related proteins on calcium phosphate ceramic particles with different phase composition and microstructure. J Biomed Mater Res B Appl Biomater 2013; 101:1069-77. [DOI: 10.1002/jbm.b.32917] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Revised: 01/12/2013] [Accepted: 01/30/2013] [Indexed: 11/10/2022]
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Santo VE, Gomes ME, Mano JF, Reis RL. Controlled release strategies for bone, cartilage, and osteochondral engineering--Part II: challenges on the evolution from single to multiple bioactive factor delivery. TISSUE ENGINEERING PART B-REVIEWS 2013; 19:327-52. [PMID: 23249320 DOI: 10.1089/ten.teb.2012.0727] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The development of controlled release systems for the regeneration of bone, cartilage, and osteochondral interface is one of the hot topics in the field of tissue engineering and regenerative medicine. However, the majority of the developed systems consider only the release of a single growth factor, which is a limiting step for the success of the therapy. More recent studies have been focused on the design and tailoring of appropriate combinations of bioactive factors to match the desired goals regarding tissue regeneration. In fact, considering the complexity of extracellular matrix and the diversity of growth factors and cytokines involved in each biological response, it is expected that an appropriate combination of bioactive factors could lead to more successful outcomes in tissue regeneration. In this review, the evolution on the development of dual and multiple bioactive factor release systems for bone, cartilage, and osteochondral interface is overviewed, specifically the relevance of parameters such as dosage and spatiotemporal distribution of bioactive factors. A comprehensive collection of studies focused on the delivery of bioactive factors is also presented while highlighting the increasing impact of platelet-rich plasma as an autologous source of multiple growth factors.
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Affiliation(s)
- Vítor E Santo
- 3Bs Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal
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47
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Li X, Feng G, Zhu S, Li J, Luo E, Hu J. Osteogenesis response to implanted materials in endocortical bone in rat femora. J Orthop Sci 2012; 17:626-33. [PMID: 22739934 DOI: 10.1007/s00776-012-0254-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2011] [Accepted: 05/28/2012] [Indexed: 10/28/2022]
Abstract
BACKGROUND Orthopedic surgeons and dentists often implant materials to repair bone tissue defects and restore physiological functions of bone organs. The clinical success depends on adequate bone formation in operation sites. However, the real cause of osteogenesis has not yet been fully elucidated. To investigate the bone response to implanted materials, this study examined the bone tissue reaction in rat femoral medullary canal, which received gelatin and collagen as foreign-body materials. METHODS A total of 36 six-month-old Sprague-Dawley rats were randomly and meanly divided into three groups. In the gelatin group, the bilateral femora received gelatin material; in the collagen group, they were implanted with type I collagen, and in the control group, the femora suffered from sham operation with no materials inserted. After 2, 4, 8, and 12 weeks, specimens were harvested and subjected to a series of examinations. RESULTS After 2 weeks of healing, a significant upregulation of both alkaline phosphatase and osteocalcin by both kinds of implanted materials relative to the control (sham implantation group) was seen in gene expression analysis. Strong reactivity of osteoprotegerin and receptor activator of NFκB ligand was detected in the two test groups in immunohistochemistry at 4 weeks of healing. Also, micro-CT revealed an increase in cortical bone thickness in the two test groups as compared to the control group. Densitometry showed increased bone mineral density in the bone receiving materials after 12 weeks, leading to the enhanced maximum load in the test groups. CONCLUSIONS These results indicated that the implanted materials led to an osteogenesis response in rat femoral medullary canal. Thus, we probably should reconsider the potential cascades of tissue reaction when utilizing orthopedic and dental implants and other materials to recover bone related-organ function and repair bone defects.
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Affiliation(s)
- Xudong Li
- State Key Laboratory of Oral Diseases and Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, China
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Park JC, Lee JB, Daculsi G, Oh SY, Cho KS, Im GI, Kim BS, Kim CS. Novel analysis model for implant osseointegration using ectopic bone formation via the recombinant human bone morphogenetic protein-2/macroporous biphasic calcium phosphate block system in rats: a proof-of-concept study. J Periodontal Implant Sci 2012; 42:136-43. [PMID: 22977743 PMCID: PMC3439525 DOI: 10.5051/jpis.2012.42.4.136] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2012] [Accepted: 06/12/2012] [Indexed: 11/08/2022] Open
Abstract
Purpose The osseointegration around titanium mini-implants installed in macroporous biphasic calcium phosphate (MBCP) blocks was evaluated after incubation with recombinant human bone morphogenetic protein-2 (rhBMP-2) in an ectopic subcutaneous rat model. Methods Mini-implants (φ1.8×12 mm) were installed in MBCP blocks (bMBCPs, 4×5×15 mm) loaded with rhBMP-2 at 0.1 mg/mL, and then implanted for 8 weeks into subcutaneous pockets of male Sprague-Dawley rats (n=10). A histomorphometric analysis was performed, and the bone-to-implant contact (BIC) and bone density were evaluated. Results Significant osteoinductive activity was induced in the rhBMP-2/bMBCP group. The percentage of BIC was 41.23±4.13% (mean±standard deviation), while bone density was 33.47±5.73%. In contrast, no bone formation was observed in the bMBCP only group. Conclusions This model represents a more standardized tool for analyzing osseointegration and bone healing along the implant surface and in bMBCPs that excludes various healing factors derived from selected animals and defect models.
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Affiliation(s)
- Jung-Chul Park
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
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Wise JK, Sumner DR, Virdi AS. Modulation of stromal cell-derived factor-1/CXC chemokine receptor 4 axis enhances rhBMP-2-induced ectopic bone formation. Tissue Eng Part A 2012; 18:860-9. [PMID: 22035136 DOI: 10.1089/ten.tea.2011.0187] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Enhancement of in vivo mobilization and homing of endogenous mesenchymal stem cells (MSCs) to an injury site is an innovative strategy for improvement of bone tissue engineering and repair. The present study was designed to determine whether mobilization by AMD3100 and/or local homing by delivery of stromal cell-derived factor-1 (SDF-1) enhances recombinant human bone morphogenetic protein-2 (rhBMP-2) induced ectopic bone formation in an established rat model. Rats received an injection of either saline or AMD3100 treatment 1 h before harvesting of bone marrow for in vitro colony-forming unit-fibroblasts (CFU-F) culture or the in vivo subcutaneous implantation of absorbable collagen sponges (ACSs) loaded with saline, recombinant human bone morphogenetic protein-2 (rhBMP-2), SDF-1, or the combination of SDF-1 and rhBMP-2. AMD3100 treatment resulted in a significant decrease in CFU-F number, compared with saline, which confirmed that a single systemic AMD3100 treatment rapidly mobilized MSCs from the bone marrow. At 28 and 56 days, bone formation in the explanted ACS was assessed by microcomputed tomography (μCT) and histology. At 28 days, AMD3100 and/or SDF-1 had no statistically significant effect on bone volume (BV) or bone mineral content (BMC), but histology revealed more active bone formation with treatment of AMD3100, loading of SDF-1, or the combination of both AMD3100 and SDF-1, compared with saline-treated rhBMP-2 loaded ACS. At 56 days, the addition of AMD3100 treatment, loading of SDF-1, or the combination of both resulted in a statistically significant stimulatory effect on BV and BMC, compared with the saline-treated rhBMP-2 loaded ACS. Histology of the 56-day ACS were consistent with the μCT analysis, exhibiting more mature and mineralized bone formation with AMD3100 treatment, SDF-1 loading, or the combination of both, compared with the saline-treated rhBMP-2 loaded ACS. The present study is the first that provides evidence of the efficacy of AMD3100 and SDF-1 treatment to stimulate trafficking of MSCs to an ectopic implant site, in order to ultimately enhance rhBMP-2 induced long-term bone formation.
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Affiliation(s)
- Joel K Wise
- Department of Anatomy and Cell Biology, Rush University Medical Center, Chicago, Illinois 60612, USA
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Analysis of hydrolyzable polyethylene glycol hydrogels and deproteinized bone mineral as delivery systems for glycosylated and non-glycosylated bone morphogenetic protein-2. Acta Biomater 2012; 8:116-23. [PMID: 21867781 DOI: 10.1016/j.actbio.2011.08.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 08/02/2011] [Accepted: 08/05/2011] [Indexed: 11/23/2022]
Abstract
Bone morphogenetic proteins (BMP), in particular BMP-2, are the growth factors primarily responsible for osteoinduction. A knowledge of interactions between bone substitute materials and growth factor variants is crucial to designing bone substitutes with an ideal release profile. Here we compare glycosylated and non-glycosylated recombinant human bone morphogenetic protein-2 (rhBMP-2) either incorporated into a hydrolyzable polyethylene glycol (PEG) hydrogel developed as a slow release system or adsorbed to a deproteinized bovine bone matrix (DBBM), a clinically well-established bone substitute material. rhBMP-2 loaded materials were immersed in cell culture medium and rhBMP-2 concentration profiles in the supernatant were determined by an enzyme-linked immunosorbent assay. The corresponding biological activities were assessed in vitro by alkaline phosphatase activity assay. We show a strong affinity of rhBMP-2 for DBBM and reduced biological activity after its release from PEG hydrogels. Glycosylated rhBMP-2 was significantly less affected by the hydrogel and interacted significantly more strongly with DBBM than non-glycosylated rhBMP-2. We therefore question the combination of PEG hydrogels with DBBM as a rhBMP-2 delivery system over DBBM alone, since rhBMP-2 released from the hydrogel will be trapped by DBBM. Moreover, our results suggest that glycosylated rhBMP-2 is favorable in combination with PEG hydrogels, since its activity is better preserved, whereas in combination with DBBM non-glycosylated rhBMP-2 is favorable, benefiting from an initially higher concentration of free rhBMP-2.
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