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Zhang Z, He Q, Zhu J, Lin X, Yang Y, Chen H, Huang X, Xu R, Deng F. Optimizing the combined soft tissue repair and osteogenesis using double surfaces of crosslinked collagen scaffolds. J Biomed Mater Res B Appl Biomater 2023; 111:1271-1285. [PMID: 36779616 DOI: 10.1002/jbm.b.35231] [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: 11/03/2022] [Revised: 01/22/2023] [Accepted: 01/30/2023] [Indexed: 02/14/2023]
Abstract
Excessive tissue damage or loss has been solved by guided tissue regeneration and guided bone regeneration theories. However, the unfavorable degradation property of the resorbable collagen scaffold brings a big challenge to support soft tissue stabilization and time-consuming osteogenesis. The combined effect for soft tissue and bone of the collagen scaffold with better degradation pattern has not been clearly proven. This study determined whether the double surfaces of crosslinked collagen scaffolds could optimize the combined soft tissue repair and osteogenesis. In this study, we applied the chemically crosslinking treatment to the commercially available collagen scaffolds. Surface characterization, mechanical property and cell proliferation in vitro were evaluated. Combined bilateral skin and bone defects were established with the smooth surface of scaffold facing the skin defect and the rough surface facing the bone defect on the calvaria of rat. Micro-CT and histological evaluation were applied to determine the scaffold degradation pattern, soft tissue repair and osteogenesis. The crosslinked collagen scaffolds showed comparably favorable surface porosity, structure intactness, superhydrophilicity and mechanical properties. Compared to the native scaffolds, the crosslinked scaffolds could optimize the combined soft tissue repair and osteogenesis by preferably prolonged degradation time. Early pro-angiogenesis facilitated soft tissue repair and osteogenesis by upregulated soft tissue matrix degradation and balanced pro-osteogenesis with limited osteoclast-mediated bone resorption. Taken together, this study offers a promising repair strategy for the combined soft tissue and bone defects. Further, the possible mechanism of controllable scaffold degradation should be conducted.
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Affiliation(s)
- Zhengchuan Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Qifen He
- Department of Stomatology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Jinhao Zhu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xiaoxuan Lin
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Yang Yang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Hongcheng Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xiaoqiong Huang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Ruogu Xu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Feilong Deng
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
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Anjum S, Rahman F, Pandey P, Arya DK, Alam M, Rajinikanth PS, Ao Q. Electrospun Biomimetic Nanofibrous Scaffolds: A Promising Prospect for Bone Tissue Engineering and Regenerative Medicine. Int J Mol Sci 2022; 23:ijms23169206. [PMID: 36012473 PMCID: PMC9408902 DOI: 10.3390/ijms23169206] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/11/2022] [Accepted: 08/13/2022] [Indexed: 11/16/2022] Open
Abstract
Skeletal-related disorders such as arthritis, bone cancer, osteosarcoma, and osteoarthritis are among the most common reasons for mortality in humans at present. Nanostructured scaffolds have been discovered to be more efficient for bone regeneration than macro/micro-sized scaffolds because they sufficiently permit cell adhesion, proliferation, and chemical transformation. Nanofibrous scaffolds mimicking artificial extracellular matrices provide a natural environment for tissue regeneration owing to their large surface area, high porosity, and appreciable drug loading capacity. Here, we review recent progress and possible future prospective electrospun nanofibrous scaffolds for bone tissue engineering. Electrospun nanofibrous scaffolds have demonstrated promising potential in bone tissue regeneration using a variety of nanomaterials. This review focused on the crucial role of electrospun nanofibrous scaffolds in biological applications, including drug/growth factor delivery to bone tissue regeneration. Natural and synthetic polymeric nanofibrous scaffolds are extensively inspected to regenerate bone tissue. We focused mainly on the significant impact of nanofibrous composite scaffolds on cell adhesion and function, and different composites of organic/inorganic nanoparticles with nanofiber scaffolds. This analysis provides an overview of nanofibrous scaffold-based bone regeneration strategies; however, the same concepts can be applied to other organ and tissue regeneration tactics.
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Affiliation(s)
- Shabnam Anjum
- Department of Tissue Engineering, School of Intelligent Medicine, China Medical University, Shenyang 110122, China
| | - Farheen Rahman
- Department of Applied Chemistry, Zakir Husain College of Engineering & Technology, Aligarh Muslim University, Aligarh 202002, India
| | - Prashant Pandey
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, India
| | - Dilip Kumar Arya
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, India
| | - Mahmood Alam
- Department of Clinical Medicine, China Medical University, Shenyang 110122, China
| | - Paruvathanahalli Siddalingam Rajinikanth
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, India
- Correspondence: (P.S.R.); (Q.A.)
| | - Qiang Ao
- Department of Tissue Engineering, School of Intelligent Medicine, China Medical University, Shenyang 110122, China
- NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterial & Institute of Regulatory Science for Medical Device & National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
- Correspondence: (P.S.R.); (Q.A.)
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Graphene-Oxide Porous Biopolymer Hybrids Enhance In Vitro Osteogenic Differentiation and Promote Ectopic Osteogenesis In Vivo. Int J Mol Sci 2022; 23:ijms23010491. [PMID: 35008918 PMCID: PMC8745160 DOI: 10.3390/ijms23010491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 12/20/2021] [Accepted: 12/29/2021] [Indexed: 11/17/2022] Open
Abstract
Over the years, natural-based scaffolds have presented impressive results for bone tissue engineering (BTE) application. Further, outstanding interactions have been observed during the interaction of graphene oxide (GO)-reinforced biomaterials with both specific cell cultures and injured bone during in vivo experimental conditions. This research hereby addresses the potential of fish gelatin/chitosan (GCs) hybrids reinforced with GO to support in vitro osteogenic differentiation and, further, to investigate its behavior when implanted ectopically. Standard GCs formulation was referenced against genipin (Gp) crosslinked blend and 0.5 wt.% additivated GO composite (GCsGp/GO 0.5 wt.%). Pre-osteoblasts were put in contact with these composites and induced to differentiate in vitro towards mature osteoblasts for 28 days. Specific bone makers were investigated by qPCR and immunolabeling. Next, CD1 mice models were used to assess de novo osteogenic potential by ectopic implantation in the subcutaneous dorsum pocket of the animals. After 4 weeks, alkaline phosphate (ALP) and calcium deposits together with collagen synthesis were investigated by biochemical analysis and histology, respectively. Further, ex vivo materials were studied after surgery regarding biomineralization and morphological changes by means of qualitative and quantitative methods. Furthermore, X-ray diffraction and Fourier-transform infrared spectroscopy underlined the newly fashioned material structuration by virtue of mineralized extracellular matrix. Specific bone markers determination stressed the osteogenic phenotype of the cells populating the material in vitro and successfully differentiated towards mature bone cells. In vivo results of specific histological staining assays highlighted collagen formation and calcium deposits, which were further validated by micro-CT. It was observed that the addition of 0.5 wt.% GO had an overall significant positive effect on both in vitro differentiation and in vivo bone cell recruitment in the subcutaneous region. These data support the GO bioactivity in osteogenesis mechanisms as being self-sufficient to elevate osteoblast differentiation and bone formation in ectopic sites while lacking the most common osteoinductive agents.
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Kang Z, Li D, Shu C, Du J, Yu B, Qian Z, Zhong Z, Zhang X, Yu B, Huang Q, Huang J, Zhu Y, Yi C, Ding H. Polydopamine Coating-Mediated Immobilization of BMP-2 on Polyethylene Terephthalate-Based Artificial Ligaments for Enhanced Bioactivity. Front Bioeng Biotechnol 2021; 9:749221. [PMID: 34869260 PMCID: PMC8636993 DOI: 10.3389/fbioe.2021.749221] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/04/2021] [Indexed: 11/13/2022] Open
Abstract
Background/objectives: Polyethylene terephthalate (PET)-based artificial ligaments are one of the most commonly used grafts in anterior cruciate ligament (ACL) reconstruction surgery. However, the lack of favorable hydrophilicity and cell attachment for PET highly impeded its widespread application in clinical practice. Studies found that surface modification on PET materials could enhance the biocompatibility and bioactivity of PET ligaments. In this study, we immobilized bone morphogenetic protein-2 (BMP-2) on the surface of PET ligaments mediated by polydopamine (PDA) coating and investigated the bioactivation and graft-to-bone healing effect of the modified grafts in vivo and in vitro. Methods: In this study, we prepared the PDA coating and subsequent BMP-2-immobilized PET artificial ligaments. Scanning electron microscopy (SEM) was used to analyze the morphological changes of the modified grafts. In addition, the surface wettability properties of the modified ligaments, amount of immobilized BMP 2, and the release of BMP-2 during a dynamic period up to 28 days were tested. Then, the attachment and proliferation of rat bone mesenchymal stem cells (rBMSCs) on grafts were examined by SEM and Cell Counting Kit-8 (CCK-8) assay, respectively. Alkaline phosphatase (ALP) assay, RT-PCR, and Alizarin Red S staining were performed to test the osteoinduction property. For in vivo experiments, an extra-articular graft-to-bone healing model in rabbits was established. At 8 weeks after surgery, biomechanical tests, micro-CT, and histological staining were performed on harvested samples. Results: A surface morphological analysis verified the success of the PDA coating. The wettability of the PET artificial ligaments was improved, and more than 80% of BMP-2 stably remained on the graft surface for 28 days. The modified grafts could significantly enhance the proliferation, attachment, as well as expression of ALP and osteogenic-related genes, which demonstrated the favorable bioactivity of the grafts immobilized with BMP-2 in vitro. Moreover, the grafts immobilized with BMP-2 at a concentration of 138.4 ± 10.6 ng/cm2 could highly improve the biomechanical properties, bone regeneration, and healing between grafts and host bone after the implantation into the rabbits compared with the PDA-PET group or the PET group. Conclusion: The immobilization of BMP-2 mediated by polydopamine coating on PET artificial ligament surface could enhance the compatibility and bioactivity of the scaffolds and the graft-to-bone healing in vivo.
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Affiliation(s)
- Zhanrong Kang
- Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Dejian Li
- Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Chaoqin Shu
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.,School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Jianhang Du
- Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Bin Yu
- Department of Pain and Rehabilitation, Shanghai Public Health Clinical Center, Shanghai Medical School, Fudan University, Shanghai, China
| | - Zhi Qian
- Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Zeyuan Zhong
- Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Xu Zhang
- Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Baoqing Yu
- Shanghai Pudong New Area People's Hospital, Shanghai, China
| | - Qikai Huang
- Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Jianming Huang
- Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Yufang Zhu
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| | - Chengqing Yi
- Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Huifeng Ding
- Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China.,Department of Pain and Rehabilitation, Shanghai Public Health Clinical Center, Shanghai Medical School, Fudan University, Shanghai, China
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5
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Zhongxing L, Shaohong W, Jinlong L, Limin Z, Yuanzheng W, Haipeng G, Jian C. Three-dimensional printed hydroxyapatite bone tissue engineering scaffold with antibacterial and osteogenic ability. J Biol Eng 2021; 15:21. [PMID: 34372891 PMCID: PMC8353754 DOI: 10.1186/s13036-021-00273-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 07/17/2021] [Indexed: 11/10/2022] Open
Abstract
The development of an effective scaffold for bone defect repair is an urgent clinical need. However, it is challenging to design a scaffold with efficient osteoinduction and antimicrobial activity for regeneration of bone defect. In this study, we successfully prepared a hydroxyapatite (HA) porous scaffold with a surface-specific binding of peptides during osteoinduction and antimicrobial activity using a three-dimensional (3D) printing technology. The HA binding domain (HABD) was introduced to the C-terminal of bone morphogenetic protein 2 mimetic peptide (BMP2-MP) and antimicrobial peptide of PSI10. The binding capability results showed that BMP2-MP and PSI10-containing HABD were firmly bound to the surface of HA scaffolds. After BMP2-MP and PSI10 were bound to the scaffold surface, no negative effect was observed on cell proliferation and adhesion. The gene expression and protein translation levels of type I collagen (COL-I), osteocalcin (OCN) and Runx2 have been significantly improved in the BMP2-MP/HABP group. The level of alkaline phosphatase significantly increased in the BMP2-MP/HABP group. The inhibition zone test against Staphylococcus aureus and Escherichia coli BL21 prove that the PSI10/HABP@HA scaffold has strong antibacterial ability than another group. These findings suggest that 3D-printed HA scaffolds with efficient osteoinduction and antimicrobial activity represent a promising biomaterial for bone defect reconstruction.
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Affiliation(s)
- Liu Zhongxing
- Department of Orthopedics, Affiliated Hospital of Chifeng University, Inner Mongolia, 024000, Chifeng, People's Republic of China
| | - Wu Shaohong
- Department of Stomatology, Affiliated Hospital of Chifeng University, Inner Mongolia, 024000, Chifeng, People's Republic of China
| | - Li Jinlong
- Department of Orthopedics, Affiliated Hospital of Chifeng University, Inner Mongolia, 024000, Chifeng, People's Republic of China.
| | - Zhang Limin
- Department of Ophthalmology, Affiliated Hospital of Chifeng University, Inner Mongolia, 024000, Chifeng, People's Republic of China
| | - Wang Yuanzheng
- Department of Orthopedics, Affiliated Hospital of Chifeng University, Inner Mongolia, 024000, Chifeng, People's Republic of China
| | - Gao Haipeng
- Department of Orthopedics, Affiliated Hospital of Chifeng University, Inner Mongolia, 024000, Chifeng, People's Republic of China
| | - Cao Jian
- Department of Orthopedics, Affiliated Hospital of Chifeng University, Inner Mongolia, 024000, Chifeng, People's Republic of China.
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Seims KB, Hunt NK, Chow LW. Strategies to Control or Mimic Growth Factor Activity for Bone, Cartilage, and Osteochondral Tissue Engineering. Bioconjug Chem 2021; 32:861-878. [PMID: 33856777 DOI: 10.1021/acs.bioconjchem.1c00090] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Growth factors play a critical role in tissue repair and regeneration. However, their clinical success is limited by their low stability, short half-life, and rapid diffusion from the delivery site. Supraphysiological growth factor concentrations are often required to demonstrate efficacy but can lead to adverse reactions, such as inflammatory complications and increased cancer risk. These issues have motivated the development of delivery systems that enable sustained release and controlled presentation of growth factors. This review specifically focuses on bioconjugation strategies to enhance growth factor activity for bone, cartilage, and osteochondral applications. We describe approaches to localize growth factors using noncovalent and covalent methods, bind growth factors via peptides, and mimic growth factor function with mimetic peptide sequences. We also discuss emerging and future directions to control spatiotemporal growth factor delivery to improve functional tissue repair and regeneration.
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Affiliation(s)
- Kelly B Seims
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Natasha K Hunt
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Lesley W Chow
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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7
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Ogay V, Mun EA, Kudaibergen G, Baidarbekov M, Kassymbek K, Zharkinbekov Z, Saparov A. Progress and Prospects of Polymer-Based Drug Delivery Systems for Bone Tissue Regeneration. Polymers (Basel) 2020; 12:E2881. [PMID: 33271770 PMCID: PMC7760650 DOI: 10.3390/polym12122881] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/23/2020] [Accepted: 11/25/2020] [Indexed: 12/12/2022] Open
Abstract
Despite the high regenerative capacity of bone tissue, there are some cases where bone repair is insufficient for a complete functional and structural recovery after damage. Current surgical techniques utilize natural and synthetic bone grafts for bone healing, as well as collagen sponges loaded with drugs. However, there are certain disadvantages associated with these techniques in clinical usage. To improve the therapeutic efficacy of bone tissue regeneration, a number of drug delivery systems based on biodegradable natural and synthetic polymers were developed and examined in in vitro and in vivo studies. Recent studies have demonstrated that biodegradable polymers play a key role in the development of innovative drug delivery systems and tissue engineered constructs, which improve the treatment and regeneration of damaged bone tissue. In this review, we discuss the most recent advances in the field of polymer-based drug delivery systems for the promotion of bone tissue regeneration and the physical-chemical modifications of polymers for controlled and sustained release of one or more drugs. In addition, special attention is given to recent developments on polymer nano- and microparticle-based drug delivery systems for bone regeneration.
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Affiliation(s)
- Vyacheslav Ogay
- Stem Cell Laboratory, National Center for Biotechnology, Nur-Sultan 010000, Kazakhstan; (V.O.); (G.K.)
| | - Ellina A. Mun
- School of Sciences and Humanities, Nazarbayev University, Nur-Sultan 010000, Kazakhstan;
| | - Gulshakhar Kudaibergen
- Stem Cell Laboratory, National Center for Biotechnology, Nur-Sultan 010000, Kazakhstan; (V.O.); (G.K.)
| | - Murat Baidarbekov
- Research Institute of Traumatology and Orthopedics, Nur-Sultan 010000, Kazakhstan;
| | - Kuat Kassymbek
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (K.K.); (Z.Z.)
| | - Zharylkasyn Zharkinbekov
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (K.K.); (Z.Z.)
| | - Arman Saparov
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan; (K.K.); (Z.Z.)
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Injamuri S, Rahaman MN, Shen Y, Huang Y. Relaxin enhances bone regeneration with BMP‐2‐loaded hydroxyapatite microspheres. J Biomed Mater Res A 2020; 108:1231-1242. [DOI: 10.1002/jbm.a.36897] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 01/21/2020] [Accepted: 02/04/2020] [Indexed: 01/11/2023]
Affiliation(s)
- Sahitya Injamuri
- Department of Biological SciencesMissouri University of Science and Technology Rolla Missouri
| | - Mohamed N. Rahaman
- Department of Materials Science and EngineeringMissouri University of Science and Technology Rolla Missouri
| | - Youqu Shen
- Department of Materials Science and EngineeringMissouri University of Science and Technology Rolla Missouri
| | - Yue‐Wern Huang
- Department of Biological SciencesMissouri University of Science and Technology Rolla Missouri
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9
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Miller MQ, McColl LF, Arul MR, Nip J, Madhu V, Beck G, Mathur K, Sahadeo V, Kerrigan JR, Park SS, Christophel JJ, Dighe AS, Kumbar SG, Cui Q. Assessment of Hedgehog Signaling Pathway Activation for Craniofacial Bone Regeneration in a Critical-Sized Rat Mandibular Defect. JAMA FACIAL PLAST SU 2020; 21:110-117. [PMID: 30520953 DOI: 10.1001/jamafacial.2018.1508] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Importance Osseous craniofacial defects are currently reconstructed with bone grafting, rigid fixation, free tissue transfer, and/or recombinant human bone morphogenetic protein 2. Although these treatment options often have good outcomes, they are associated with substantial morbidity, and many patients are not candidates for free tissue transfer. Objective To assess whether polysaccharide-based scaffold (PS) constructs that are cross-linked with smoothened agonist (SAG), vascular endothelial growth factor (VEGF), and bone morphogenetic protein 6 (BMP-6) would substantially increase bone regeneration. Design, Setting, and Participants This animal model study was conducted at the University of Virginia School of Medicine Cui Laboratory from March 1, 2017, to June 30, 2017. Thirty-three 10-week-old female Lewis rats were acquired for the study. Bilateral nonsegmental critical-sized defects were created in the angle of rat mandibles. The defects were either left untreated or filled with 1 of the 9 PSs. The rats were killed after 8 weeks, and bone regeneration was evaluated using microcomputed tomographic imaging and mechanical testing. Analysis of variance testing was used to compare the treatment groups. Main Outcomes and Measures Blinded analysis and computer analysis of the microcomputed tomographic images were used to assess bone regeneration. Results In the 33 female Lewis rats, minimal healing was observed in the untreated mandibles. Addition of SAG was associated with increases in bone regeneration and bone density in all treatment groups, and maximum bone healing was seen in the group with BMP-6, VEGF, and SAG cross-linked to PS. For each of the 5 no scaffold group vs BMP-6, VEGF, and SAG cross-linked to PS group comparisons, mean defect bone regeneration was 4.14% (95% CI, 0.94%-7.33%) vs 66.19% (95% CI, 54.47%-77.90%); mean bone volume, 14.52 mm3 (95% CI, 13.07-15.97 mm3) vs 20.87 mm3 (95% CI, 14.73- 27.01 mm3); mean bone surface, 68.97 mm2 (95% CI, 60.08-77.85 mm2) vs 96.77 mm2 (95% CI, 76.11-117.43 mm2); mean ratio of bone volume to total volume, 0.11 (95% CI, 0.10-0.11) vs 0.15 (95% CI, 0.10-0.19); and mean connectivity density 0.03 (95% CI, 0.02-0.05) vs 0.32 (95% CI, 0.25-0.38). On mechanical testing, mandibles with untreated defects broke with less force than control mandibles in which no defect was made, although this force did not reach statistical significance. No significant difference in force to fracture was observed among the treatment groups. Conclusions and Relevance In this rat model study, activation of the hedgehog signaling pathway using smoothened agonist was associated with increased craniofacial bone regeneration compared with growth factors alone, including US Food and Drug Administration-approved recombinant human bone morphogenetic protein 2. Pharmaceuticals that target this pathway may offer a new reconstructive option for bony craniofacial defects as well as nonunion and delayed healing fractures. Level of Evidence NA.
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Affiliation(s)
- Matthew Q Miller
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville.,Department of Otolaryngology, University of Virginia, Charlottesville
| | - Logan F McColl
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville.,Department of Otolaryngology, University of Virginia, Charlottesville
| | - Michael R Arul
- Department of Orthopaedic Surgery, University of Connecticut, Farmington
| | - Jonathan Nip
- Department of Orthopaedic Surgery, University of Connecticut, Farmington.,Department of Biomedical Engineering, University of Connecticut, Farmington.,Department of Materials Science and Engineering, University of Connecticut, Farmington
| | - Vedavathi Madhu
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville
| | - Gina Beck
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville
| | - Kishan Mathur
- Center for Applied Biomechanics, Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville
| | - Vashaana Sahadeo
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville
| | - Jason R Kerrigan
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville.,Center for Applied Biomechanics, Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville
| | - Stephen S Park
- Department of Otolaryngology, University of Virginia, Charlottesville
| | | | - Abhijit S Dighe
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville
| | - Sangamesh G Kumbar
- Department of Orthopaedic Surgery, University of Connecticut, Farmington.,Department of Biomedical Engineering, University of Connecticut, Farmington.,Department of Materials Science and Engineering, University of Connecticut, Farmington
| | - Quanjun Cui
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville
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10
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Lommen J, Schorn L, Landers A, Holtmann H, Berr K, Kübler NR, Sproll C, Rana M, Depprich R. Release kinetics of the model protein FITC-BSA from different polymer-coated bovine bone substitutes. Head Face Med 2019; 15:27. [PMID: 31711509 PMCID: PMC6844035 DOI: 10.1186/s13005-019-0211-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 10/31/2019] [Indexed: 12/03/2022] Open
Abstract
Background Controlled release of proteins bound to conventional bone substitutes is still insufficient. Therefore, this study evaluates in-vitro release kinetics of the model protein FITC-BSA (fluorescein conjugated bovine serum albumine) from insoluble bovine collagenous bone matrices (ICBM) with different polymer coatings. Analyzes aim at comparing FITC-BSA release from uncoated versus coated ICBM over time to find bone substitute coatings with consistent release profiles. Methods Release kinetics of FITC-BSA from uncoated as well as coated ICBM with five different polymers (RESOMER R 203 H, RG 503 H, RG 504 H, RG 505, L 206 S) were measured over a period of 11 days (d). Measurements were conducted after 6 h (h), 12 h, 24 h, 3 d, 5 d, 7 d, 9 d and 11 d with six samples for each coated ICBM. Two groups were formed (1) with and (2) without medium change at times of measurement. For each group ANOVA with post-hoc Bonferroni testing was used. Scanning electron microscopy assessed morphologic differences between ICBM coating. Results In group 1 approx. 70% of FITC-BSA release from uncoated ICBM occurred after 6 h compared to approx. 50% in group 2. Only polymers with medium inherent viscosity, i.e. RESOMER RG 503 H, constantly showed significantly more FITC-BSA release throughout 11 d than uncoated ICBM (p = 0.007). The same was found for group 2 (p = 0.005). No significant differences between PLA and PLGA polymers were found. Scanning electron microscopy results indicate a weak adhesion of polymer coatings to ICBM explaining its rather weak retentive effect on overall FITC-BSA release. Conclusions Medium molecular size polymers reduce the overall released FITC-BSA from ICBM over time. In clinical practice these polymers may prove ideal for bone substitute materials.
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Affiliation(s)
- Julian Lommen
- Department of Oral and Maxillofacial Surgery, Heinrich-Heine-University, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Lara Schorn
- Department of Oral and Maxillofacial Surgery, Heinrich-Heine-University, Moorenstraße 5, 40225, Düsseldorf, Germany.
| | - Alexis Landers
- Department of Oral and Maxillofacial Surgery, Evangelisches Krankenhaus Hattingen, Bredenscheider Straße 54, 45525, Hattingen, Germany
| | - Henrik Holtmann
- Department of Oral and Maxillofacial Surgery, Malteser Clinic St. Johannes, Johannisstraße 21, 47198, Duisburg, Germany
| | - Karin Berr
- Department of Oral and Maxillofacial Surgery, Heinrich-Heine-University, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Norbert R Kübler
- Department of Oral and Maxillofacial Surgery, Heinrich-Heine-University, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Christoph Sproll
- Department of Oral and Maxillofacial Surgery, Heinrich-Heine-University, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Majeed Rana
- Department of Oral and Maxillofacial Surgery, Heinrich-Heine-University, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Rita Depprich
- Department of Oral and Maxillofacial Surgery, Heinrich-Heine-University, Moorenstraße 5, 40225, Düsseldorf, Germany
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11
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Cross LM, Carrow JK, Ding X, Singh KA, Gaharwar AK. Sustained and Prolonged Delivery of Protein Therapeutics from Two-Dimensional Nanosilicates. ACS APPLIED MATERIALS & INTERFACES 2019; 11:6741-6750. [PMID: 30676016 PMCID: PMC6472961 DOI: 10.1021/acsami.8b17733] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
We present a nanoengineered system for sustained and prolonged delivery of protein therapeutics, which has the potential to impact current orthopedic regeneration strategies. Specifically, we introduce two-dimensional nanosilicates with a high surface area and charged characteristics for delivery of active proteins for more than 30 days. The nanosilicates show high binding efficacy without altering the protein conformation and bioactivity. The released proteins are able to maintain high activity as demonstrated by enhanced differentiation of human mesenchymal stem cells at 10-fold lower concentration compared to the exogenous control. Utilizing the nanosilicates as a delivery vehicle could minimize the negative side effects observed because of the use of supraphysiological dosages of protein therapeutics for orthopedic regeneration strategies.
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Affiliation(s)
- Lauren M. Cross
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - James K. Carrow
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Xicheng Ding
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Kanwar Abhay Singh
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Akhilesh K. Gaharwar
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
- Department of Material Sciences, Texas A&M University, College Station, Texas 77843, United States
- Center for Remote Health and Technologies and Systems, Texas A&M University, College Station, Texas 77843, United States
- Corresponding Author. Phone: 979-458-5540. Fax: 979-845-4450
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12
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Ruan S, Deng J, Yan L, Huang W. Evaluation of the effects of the combination of BMP-2-modified BMSCs and PRP on cartilage defects. Exp Ther Med 2018; 16:4569-4577. [PMID: 30542406 PMCID: PMC6257496 DOI: 10.3892/etm.2018.6776] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 07/20/2018] [Indexed: 01/28/2023] Open
Abstract
Articular cartilage is avascular and aneural, and has limited capacity for self-regeneration when injured. Tissue engineering has emerged as a promising approach in repairing cartilage defects. To improve the therapy of cartilage healing, the present study investigated the efficacy of the combination of lentivirus-mediated bone morphogenetic protein-2 (BMP2) in bone marrow-derived stromal cells (BMSCs) and platelet-rich plasma (PRP) on cartilage and bone healing in a cartilage defect model using the rabbit knee. The BMSCs were harvested from New Zealand rabbits and transduced with lentivirus carrying BMP-2. Standard bone defects were introduced in the femoral groove of patellofemoral joints of 48 New Zealand rabbits. The cartilage defects were subjected to synthetic scaffold mosaicplasty with chitosan/silk fibroin/nanohydroxyapatite particles tri-component scaffolds soaked in BMSCs and PRP. After 16 weeks, the tissue specimens were assessed by micro-computed tomography (micro-CT) and macroscopic examination. The results showed that lentivirus-mediated BMP-2 and PRP increased the cell viability of the BMSCs, induced the expression of associated genes and enhanced osteogenic differentiation in vitro. In vivo, the expression of BMP-2 was observed for 16 weeks. The combination of BMP-2 and PRP treatment led to optimal results, compared with the other groups on micro-CT and gross observations. The results of the present study present a novel therapy using the lentivirus-mediated BMP-2 gene together with PRP for cartilage healing.
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Affiliation(s)
- Shiqiang Ruan
- Department of Orthopaedics Surgery, The First People's Hospital of Zunyi, Zunyi, Guizhou 563003, P.R. China
| | - Jiang Deng
- Department of Orthopaedics Surgery, The First People's Hospital of Zunyi, Zunyi, Guizhou 563003, P.R. China
| | - Ling Yan
- Department of Orthopaedics Surgery, The First People's Hospital of Zunyi, Zunyi, Guizhou 563003, P.R. China
| | - Wenliang Huang
- Department of Orthopaedics Surgery, The First People's Hospital of Zunyi, Zunyi, Guizhou 563003, P.R. China
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13
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Abstract
The conjugation of biomolecules can impart materials with the bioactivity necessary to modulate specific cell behaviors. While the biological roles of particular polypeptide, oligonucleotide, and glycan structures have been extensively reviewed, along with the influence of attachment on material structure and function, the key role played by the conjugation strategy in determining activity is often overlooked. In this review, we focus on the chemistry of biomolecule conjugation and provide a comprehensive overview of the key strategies for achieving controlled biomaterial functionalization. No universal method exists to provide optimal attachment, and here we will discuss both the relative advantages and disadvantages of each technique. In doing so, we highlight the importance of carefully considering the impact and suitability of a particular technique during biomaterial design.
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Affiliation(s)
- Christopher D. Spicer
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles Väg 2, Stockholm, Sweden
| | - E. Thomas Pashuck
- NJ
Centre for Biomaterials, Rutgers University, 145 Bevier Road, Piscataway, New Jersey United States
| | - Molly M. Stevens
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles Väg 2, Stockholm, Sweden
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, Exhibition Road, London, United Kingdom
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14
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Wu Z, Zhou Y, Chen L, Hu M, Wang Y, Li L, Wang Z, Zhang P. Binding efficiency of recombinant collagen-binding basic fibroblast growth factors (CBD-bFGFs) and their promotion for NIH-3T3 cell proliferation. Biopolymers 2018; 109:e23105. [PMID: 29457633 DOI: 10.1002/bip.23105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 12/27/2017] [Accepted: 01/16/2018] [Indexed: 11/07/2022]
Abstract
The recombinant basic fibroblast growth factor (bFGF) containing collagen-binding domain (CBD) has been found to be a potential therapeutic factor in tissue regeneration. However, its binding efficiency and quantification remain uncertain. In this research, massive recombinant bFGFs with good bioactivity for enhancing the proliferation of NIH-3T3 cells were achieved. An ELISA-based quantitative method was set up to investigate the binding efficiency of CBD-bFGFs on collagen films. It indicated that the CBDs significantly increased the collagen-binding ability of bFGF (P < .05), with the optimum binding condition first determined to be in the pH range of 7.5-9.5 (P < .05). Then, the relevant equations to calculate the binding density of bFGF, C-bFGF, and V-bFGF were acquired. Analysis confirmed that the bioactivity of immobilized bFGFs was well correlated with the density of growth factor on collagen films. Based on this research, the density of growth factor is a logical and applicable dosage unit for quantification of binding efficiency of growth factors, rather than traditional concentration of soluble growth factors in tissue engineering applications.
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Affiliation(s)
- Zhenxu Wu
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, People's Republic of China.,Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People's Republic of China
| | - Yulai Zhou
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, People's Republic of China
| | - Li Chen
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, People's Republic of China.,Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People's Republic of China
| | - Mingxin Hu
- School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, People's Republic of China
| | - Yu Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People's Republic of China
| | - Linlong Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People's Republic of China
| | - Zongliang Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People's Republic of China
| | - Peibiao Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People's Republic of China
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15
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Gohil SV, Wang L, Rowe DW, Nair LS. Spatially controlled rhBMP-2 mediated calvarial bone formation in a transgenic mouse model. Int J Biol Macromol 2018; 106:1159-1165. [DOI: 10.1016/j.ijbiomac.2017.08.116] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 08/18/2017] [Accepted: 08/21/2017] [Indexed: 11/30/2022]
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16
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Li Y, He Q, Hu X, Liu Y, Cheng X, Li X, Deng F. Improved performance of collagen scaffolds crosslinked by Traut’s reagent and Sulfo-SMCC. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:629-647. [PMID: 28277011 DOI: 10.1080/09205063.2017.1291296] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Yiming Li
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, P.R. China
| | - Qifen He
- Department of Stomatology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, P.R. China
| | - Xiucheng Hu
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, P.R. China
| | - Yun Liu
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, P.R. China
| | - Xiaohui Cheng
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, P.R. China
| | - Xiachen Li
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, P.R. China
| | - Feilong Deng
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, P.R. China
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17
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Guignabert C, Bailly S, Humbert M. Restoring BMPRII functions in pulmonary arterial hypertension: opportunities, challenges and limitations. Expert Opin Ther Targets 2016; 21:181-190. [DOI: 10.1080/14728222.2017.1275567] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Christophe Guignabert
- INSERM UMR_S 999, Le Plessis-Robinson, France
- Univ. Paris-Sud, Université Paris-Saclay, Kremlin-Bicêtre, France
| | - Sabine Bailly
- INSERM U1036, Grenoble, France
- Laboratoire Biologie du Cancer et de l’Infection, Commissariat à l’Énergie Atomique et aux Energies Alternatives, Biosciences and Biotechnology Institute of Grenoble, Grenoble, France
- Université Grenoble-Alpes, Grenoble, France
| | - Marc Humbert
- INSERM UMR_S 999, Le Plessis-Robinson, France
- Univ. Paris-Sud, Université Paris-Saclay, Kremlin-Bicêtre, France
- AP-HP, Service de Pneumologie, Centre de Référence de l’Hypertension Pulmonaire Sévère, DHU Thorax Innovation, Hôpital de Bicêtre, France
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18
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Fan J, Guo M, Im CS, Pi-Anfruns J, Cui ZK, Kim S, Wu BM, Aghaloo TL, Lee M. Enhanced Mandibular Bone Repair by Combined Treatment of Bone Morphogenetic Protein 2 and Small-Molecule Phenamil. Tissue Eng Part A 2016; 23:195-207. [PMID: 27771997 DOI: 10.1089/ten.tea.2016.0308] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Growth factor-based therapeutics using bone morphogenetic protein 2 (BMP-2) presents a promising strategy to reconstruct craniofacial bone defects such as mandible. However, clinical applications require supraphysiological BMP doses that often increase inappropriate adipogenesis, resulting in well-documented, cyst-like bone formation. Here we reported a novel complementary strategy to enhance osteogenesis and mandibular bone repair by using small-molecule phenamil that has been shown to be a strong activator of BMP signaling. Phenamil synergistically induced osteogenic differentiation of human bone marrow mesenchymal stem cells with BMP-2 while suppressing their adipogenic differentiation induced by BMP-2 in vitro. The observed pro-osteogenic and antiadipogenic activity of phenamil was mediated by expression of tribbles homolog 3 (Trb3) that enhanced BMP-smad signaling and inhibited expression of peroxisome proliferator-activated receptor gamma (PPARγ), a master regulator of adipogenesis. The synergistic effect of BMP-2+phenamil on bone regeneration was further confirmed in a critical-sized rat mandibular bone defect by implanting polymer scaffolds designed to slowly release the therapeutic molecules. These findings indicate a new complementary osteoinductive strategy to improve clinical efficacy and safety of current BMP-based therapeutics.
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Affiliation(s)
- Jiabing Fan
- 1 Division of Advanced Prosthodontics, School of Dentistry, University of California , Los Angeles, Los Angeles, California
| | - Mian Guo
- 2 Department of Neurosurgery, The 2nd Affiliated Hospital of Harbin Medical University , Harbin, China
| | - Choong Sung Im
- 1 Division of Advanced Prosthodontics, School of Dentistry, University of California , Los Angeles, Los Angeles, California
| | - Joan Pi-Anfruns
- 3 Division of Diagnostic and Surgical Sciences, School of Dentistry, University of California , Los Angeles, Los Angeles, California
| | - Zhong-Kai Cui
- 1 Division of Advanced Prosthodontics, School of Dentistry, University of California , Los Angeles, Los Angeles, California
| | - Soyon Kim
- 4 Department of Bioengineering, University of California , Los Angeles, Los Angeles, California
| | - Benjamin M Wu
- 1 Division of Advanced Prosthodontics, School of Dentistry, University of California , Los Angeles, Los Angeles, California.,4 Department of Bioengineering, University of California , Los Angeles, Los Angeles, California
| | - Tara L Aghaloo
- 3 Division of Diagnostic and Surgical Sciences, School of Dentistry, University of California , Los Angeles, Los Angeles, California
| | - Min Lee
- 1 Division of Advanced Prosthodontics, School of Dentistry, University of California , Los Angeles, Los Angeles, California.,4 Department of Bioengineering, University of California , Los Angeles, Los Angeles, California
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19
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Sun H, Wang J, Deng F, Liu Y, Zhuang X, Xu J, Li L. Co‑delivery and controlled release of stromal cell‑derived factor‑1α chemically conjugated on collagen scaffolds enhances bone morphogenetic protein‑2‑driven osteogenesis in rats. Mol Med Rep 2016; 14:737-45. [PMID: 27220358 PMCID: PMC4918613 DOI: 10.3892/mmr.2016.5339] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 04/12/2016] [Indexed: 01/03/2023] Open
Abstract
There has been considerable focus in investigations on the delivery systems and clinical applications of bone morphogenetic protein-2 (BMP-2) for novel bone formation. However, current delivery systems require high levels of BMP-2 to exert a biological function. There are several concerns in using of high levels of BMP-2, including safety and the high cost of treatment. Therefore, the development of strategies to decrease the levels of BMP-2 required in these delivery systems is required. In our previous studies, a controlled-release system was developed, which used Traut's reagent and the cross-linker, 4-(N-maleimi-domethyl) cyclohexane-1-carboxylic acid 3-sulfo-N-hydroxysuccinimide ester sodium salt (Sulfo-SMCC), to chemically conjugate BMP-2 directly on collagen discs. In the current study, retention efficiency and release kinetics of stromal cell-derived factor-1α (SDF-1α) cross-linked on collagen scaffolds were detected. In addition, the osteogenic activity of SDF-1α and suboptimal doses of BMP-2 cross-linked on collagen discs following subcutaneous implantation in rats were evaluated. Independent two-tailed t-tests and one-way analysis of variance were used for analysis. In the present study, the controlled release of SDF-1α chemically conjugated on collagen scaffolds was demonstrated. By optimizing the concentrations of Traut's reagent and the Sulfo-SMCC cross-linker, a significantly higher level of SDF-1α was covalently retained on the collagen scaffold, compared with that retained using a physical adsorption method. Mesenchymal stem cell homing indicated that the biological function of the SDF-1α cross-linked on the collagen scaffolds remained intact. In rats, co-treatment with SDF-1α and a suboptimal dose of BMP-2 cross-linked on collagen scaffolds using this chemically conjugated method induced higher levels of ectopic bone formation, compared with the physical adsorption method. No ectopic bone formation was observed following treatment with a suboptimal dose of BMP-2 alone. Therefore, the co-delivery of SDF-1α and a suboptimal dose of BMP-2 chemically conjugated on collagen scaffolds for the treatment of bone injuries reduced the level of BMP-2 required, reducing the risks of side effects.
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Affiliation(s)
- Haipeng Sun
- Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Jinming Wang
- Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Feilong Deng
- Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Yun Liu
- Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Xiumei Zhuang
- Department of Oral Implantology, Sun Yat‑Sen Memorial Hospital, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Jiayun Xu
- Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Long Li
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
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20
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Chen L, Lin J, Li J, Wang X, Zhuang J, Wang H, Cheng K, Weng W. Spatially-controlled distribution of HACC in mineralized collagen coatings for improving rhBMP-2 loading and release behavior. Colloids Surf B Biointerfaces 2016; 145:114-121. [PMID: 27151207 DOI: 10.1016/j.colsurfb.2016.04.047] [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: 01/12/2016] [Revised: 04/11/2016] [Accepted: 04/27/2016] [Indexed: 01/05/2023]
Abstract
In this study, mineralized collagen (COL) coatings with controlled loading and release of bone morphogenetic protein (rhBMP-2) as well as enhanced osteogenic differentiation were successfully achieved via the spatially-control of hydroxypropyltrimethyl ammonium chloride chitosan (HACC) within the coatings. The distribution of HACC in the inner part (HACC-IN) or the outer part (HACC-OUT) of the coatings were adjusted by different potential values and negative/positive alternations during alternating potentials assisted electrochemical deposition (AP-ECD). It was found that rhBMP-2 loading capacity was remarkably enhanced with the increased incorporation of HACC due to their strong interaction, and the release behavior was also tuned by HACC location. In general, HACC-IN coatings showed a prominent improvement in cytocompatibility and osteogenic differentiation. The main reason is considered that the inner location of HACC can eliminate the negative effect of HACC to initial cellular adhesion and bring to a sustained rhBMP-2 release behavior due to kinetic modification. An optimized coating in this work could load as high as 4644ng/cm(2) rhBMP-2 and release only 25% for 14 days, which consequently leads to a better osteogenic differentiation. This study has thus inspired another promising protocol for designing growth factor incorporated bioactive coatings for bone implants with improved osteointegration.
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Affiliation(s)
- Lu Chen
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
| | - Jun Lin
- The First Affiliated Hospital of Medical College, Zhejiang University, Hangzhou 310003, China
| | - Juan Li
- The First Affiliated Hospital of Medical College, Zhejiang University, Hangzhou 310003, China
| | - Xiaozhao Wang
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
| | - Junjun Zhuang
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
| | - Huiming Wang
- The First Affiliated Hospital of Medical College, Zhejiang University, Hangzhou 310003, China
| | - Kui Cheng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China.
| | - Wenjian Weng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China.
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21
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Agrawal V, Sinha M. A review on carrier systems for bone morphogenetic protein-2. J Biomed Mater Res B Appl Biomater 2016; 105:904-925. [PMID: 26728994 DOI: 10.1002/jbm.b.33599] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 12/01/2015] [Accepted: 12/03/2015] [Indexed: 01/26/2023]
Abstract
Bone morphogenetic protein-2 (BMP-2) has unique bone regeneration property. The powerful osteoinductive nature makes it considered as second line of therapy in nonunion bone defect. A large number of carriers and delivery systems made up of different materials have been investigated for controlled and sustained release of BMP-2. The delivery systems are in the form of hydrogel, microsphere, nanoparticles, and fibers. The carriers used for the delivery are made up of metals, ceramics, polymers, and composites. Implantation of these protein-loaded carrier leads to cell adhesion, degradation which eventually releases the drug/protein at site specific. But, problems like ectopic growth, lesser protein delivery, inactivation of the protein are reported in the available carrier systems. Therefore, it is need of an hour to modify the available carrier systems as well as explore other biomaterials with desired properties. In this review, all the reported carrier systems made of metals, ceramics, polymers, composites are evaluated in terms of their processing conditions, loading capacity and release pattern of BMP-2. Along with these biomaterials, the attempts of protein modification by adding some functional group to BMP-2 or extracting functional peptides from the protein to achieve the desired effect, is also evaluated. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 904-925, 2017.
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Affiliation(s)
- Vishal Agrawal
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research-Ahmedabad, Ahmedabad-, 380054, India
| | - Mukty Sinha
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research-Ahmedabad, Ahmedabad-, 380054, India
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22
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Patel JJ, Flanagan CL, Hollister SJ. Bone Morphogenetic Protein-2 Adsorption onto Poly-ɛ-caprolactone Better Preserves Bioactivity In Vitro and Produces More Bone In Vivo than Conjugation Under Clinically Relevant Loading Scenarios. Tissue Eng Part C Methods 2015; 21:489-98. [PMID: 25345571 DOI: 10.1089/ten.tec.2014.0377] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND One strategy to reconstruct large bone defects is to prefabricate a vascularized flap by implanting a biomaterial scaffold with associated biologics into the latissimus dorsi and then transplanting this construct to the defect site after a maturation period. This strategy, similar to all clinically and regulatory feasible biologic approaches to surgical reconstruction, requires the ability to quickly (<1 h within an operating room) and efficiently bind biologics to scaffolds. It also requires the ability to localize biologic delivery. In this study, we investigated the efficacy of binding bone morphogenetic protein-2 (BMP2) to poly-ɛ-caprolactone (PCL) using adsorption and conjugation as a function of time. METHODS BMP2 was adsorbed (Ads) or conjugated (Conj) to PCL scaffolds with the same three-dimensional printed architecture while altering exposure time (0.5, 1, 5, and 16 h), temperature (4°C, 23°C), and BMP2 concentration (1.4, 5, 20, and 65 μg/mL). The in vitro release was quantified, and C2C12 cell alkaline phosphatase (ALP) expression was used to confirm bioactivity. Scaffolds with either 65 or 20 μg/mL Ads or Conj BMP2 for 1 h at 23°C were implanted subcutaneously in mice to evaluate in vivo bone regeneration. Micro-computed tomography, compression testing, and histology were performed to characterize bone regeneration. RESULTS After 1 h exposure to 65 μg/mL BMP2 at 23°C, Conj and Ads resulted in 12.83 ± 1.78 and 10.78 ± 1.49 μg BMP2 attached, respectively. Adsorption resulted in a positive ALP response and had a small burst release; whereas conjugation provided a sustained release with negligible ALP production, indicating that the conjugated BMP2 may not be bioavailable. Adsorbed 65 μg/mL BMP2 solution resulted in the greatest regenerated bone volume (15.0 ± 3.0 mm³), elastic modulus (20.1 ± 3.0 MPa), and %bone ingrowth in the scaffold interior (17.2% ± 5.4%) when compared with conjugation. CONCLUSION Adsorption may be optimal for the clinical application of prefabricating bone flaps due to BMP2 binding in a short exposure time, retained BMP2 bioactivity, and bone growth adhering to scaffold geometry and into pores with healthy marrow development.
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Affiliation(s)
- Janki J Patel
- Department of Biomedical Engineering, University of Michigan , Ann Arbor, Michigan
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Kim J, Lin B, Kim S, Choi B, Evseenko D, Lee M. TGF-β1 conjugated chitosan collagen hydrogels induce chondrogenic differentiation of human synovium-derived stem cells. J Biol Eng 2015; 9:1. [PMID: 25745515 PMCID: PMC4350967 DOI: 10.1186/1754-1611-9-1] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 12/24/2014] [Indexed: 12/27/2022] Open
Abstract
Background Unlike bone tissue, articular cartilage regeneration has not been very successful and has many challenges ahead. We have previously developed injectable hydrogels using photopolymerizable chitosan (MeGC) that supported growth of chondrocytes. In this study, we demonstrate a biofunctional hydrogel for specific use in cartilage regeneration by conjugating transforming growth factor-β1 (TGF-β1), a well-documented chondrogenic factor, to MeGC hydrogels impregnating type II collagen (Col II), one of the major cartilaginous extracellular matrix (ECM) components. Results TGF-β1 was delivered from MeGC hydrogels in a controlled manner with reduced burst release by chemically conjugating the protein to MeGC. The hydrogel system did not compromise viability of encapsulated human synovium-derived mesenchymal stem cells (hSMSCs). Col II impregnation and TGF-β1 delivery significantly enhanced cellular aggregation and deposition of cartilaginous ECM by the encapsulated cells, compared with pure MeGC hydrogels. Conclusions This study demonstrates successful engineering of a biofunctional hydrogel with a specific microenvironment tailored to promote chondrogenesis. This hydrogel system can provide promising efficacious therapeutics in the treatment of cartilage defects. Electronic supplementary material The online version of this article (doi:10.1186/1754-1611-9-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jinku Kim
- Department of Bio and Chemical Engineering, Hongik University, Sejong, 339-701 South Korea
| | - Brian Lin
- Division of Advanced Prosthodontics, University of California, Los Angeles, CA 90095 USA
| | - Soyon Kim
- Department of Bioengineering, University of California, Los Angeles, CA 90095 USA
| | - Bogyu Choi
- Division of Advanced Prosthodontics, University of California, Los Angeles, CA 90095 USA
| | - Denis Evseenko
- Department of Orthopaedic Surgery, University of California, Los Angeles, CA 90095 USA
| | - Min Lee
- Division of Advanced Prosthodontics, University of California, Los Angeles, CA 90095 USA ; Department of Bioengineering, University of California, Los Angeles, CA 90095 USA
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Suliman S, Xing Z, Wu X, Xue Y, Pedersen TO, Sun Y, Døskeland AP, Nickel J, Waag T, Lygre H, Finne-Wistrand A, Steinmüller-Nethl D, Krueger A, Mustafa K. Release and bioactivity of bone morphogenetic protein-2 are affected by scaffold binding techniques in vitro and in vivo. J Control Release 2014; 197:148-57. [PMID: 25445698 DOI: 10.1016/j.jconrel.2014.11.003] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 11/02/2014] [Accepted: 11/03/2014] [Indexed: 11/15/2022]
Abstract
A low dose of 1μg rhBMP-2 was immobilised by four different functionalising techniques on recently developed poly(l-lactide)-co-(ε-caprolactone) [(poly(LLA-co-CL)] scaffolds. It was either (i) physisorbed on unmodified scaffolds [PHY], (ii) physisorbed onto scaffolds modified with nanodiamond particles [nDP-PHY], (iii) covalently linked onto nDPs that were used to modify the scaffolds [nDP-COV] or (iv) encapsulated in microspheres distributed on the scaffolds [MICS]. Release kinetics of BMP-2 from the different scaffolds was quantified using targeted mass spectrometry for up to 70days. PHY scaffolds had an initial burst of release while MICS showed a gradual and sustained increase in release. In contrast, NDP-PHY and nDP-COV scaffolds showed no significant release, although nDP-PHY scaffolds maintained bioactivity of BMP-2. Human mesenchymal stem cells cultured in vitro showed upregulated BMP-2 and osteocalcin gene expression at both week 1 and week 3 in the MICS and nDP-PHY scaffold groups. These groups also demonstrated the highest BMP-2 extracellular protein levels as assessed by ELISA, and mineralization confirmed by Alizarin red. Cells grown on the PHY scaffolds in vitro expressed collagen type 1 alpha 2 early but the scaffold could not sustain rhBMP-2 release to express mineralization. After 4weeks post-implantation using a rat mandible critical-sized defect model, micro-CT and Masson trichrome results showed accelerated bone regeneration in the PHY, nDP-PHY and MICS groups. The results demonstrate that PHY scaffolds may not be desirable for clinical use, since similar osteogenic potential was not seen under both in vitro and in vivo conditions, in contrast to nDP-PHY and MICS groups, where continuous low doses of BMP-2 induced satisfactory bone regeneration in both conditions. The nDP-PHY scaffolds used here in critical-sized bone defects for the first time appear to have promise compared to growth factors adsorbed onto a polymer alone and the short distance effect prevents adverse systemic side effects.
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Affiliation(s)
- Salwa Suliman
- Department of Clinical Dentistry, Center for Clinical Dental Research, University of Bergen, Norway.
| | - Zhe Xing
- Department of Clinical Dentistry, Center for Clinical Dental Research, University of Bergen, Norway
| | - Xujun Wu
- Department of Cranio-Maxillofacial and Oral Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Ying Xue
- Department of Clinical Dentistry, Center for Clinical Dental Research, University of Bergen, Norway
| | - Torbjorn O Pedersen
- Department of Clinical Dentistry, Center for Clinical Dental Research, University of Bergen, Norway
| | - Yang Sun
- Department of Fibre and Polymer Technology, Royal Institute of Technology, KTH, Stockholm, Sweden
| | | | - Joachim Nickel
- Chair Tissue Engineering and Regenerative Medicine, University Hospital of Würzburg, Germany; Fraunhofer Project Group Regenerative Technologies in Oncology, Würzburg, Germany
| | - Thilo Waag
- Institute of Organic Chemistry, University of Würzburg, Würzburg, Germany
| | - Henning Lygre
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Anna Finne-Wistrand
- Department of Fibre and Polymer Technology, Royal Institute of Technology, KTH, Stockholm, Sweden
| | | | - Anke Krueger
- Institute of Organic Chemistry, University of Würzburg, Würzburg, Germany
| | - Kamal Mustafa
- Department of Clinical Dentistry, Center for Clinical Dental Research, University of Bergen, Norway.
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Oryan A, Alidadi S, Moshiri A, Bigham-Sadegh A. Bone morphogenetic proteins: a powerful osteoinductive compound with non-negligible side effects and limitations. Biofactors 2014; 40:459-81. [PMID: 25283434 DOI: 10.1002/biof.1177] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Revised: 07/21/2014] [Accepted: 07/26/2014] [Indexed: 12/29/2022]
Abstract
Healing and regeneration of large bone defects leading to non-unions is a great concern in orthopedic surgery. Since auto- and allografts have limitations, bone tissue engineering and regenerative medicine (TERM) has attempted to solve this issue. In TERM, healing promotive factors are necessary to regulate the several important events during healing. An ideal treatment strategy should provide osteoconduction, osteoinduction, osteogenesis, and osteointegration of the graft or biomaterials within the healing bone. Since many materials have osteoconductive properties, only a few biomaterials have osteoinductive properties which are important for osteogenesis and osteointegration. Bone morphogenetic proteins (BMPs) are potent inductors of the osteogenic and angiogenic activities during bone repair. The BMPs can regulate the production and activity of some growth factors which are necessary for the osteogenesis. Since the introduction of BMP, it has added a valuable tool to the surgeon's possibilities and is most commonly used in bone defects. Despite significant evidences suggesting their potential benefit on bone healing, there are some evidences showing their side effects such as ectopic bone formation, osteolysis and problems related to cost effectiveness. Bone tissue engineering may create a local environment, using the delivery systems, which enables BMPs to carry out their activities and to lower cost and complication rate associated with BMPs. This review represented the most important concepts and evidences regarding the role of BMPs on bone healing and regeneration from basic to clinical application. The major advantages and disadvantages of such biologic compounds together with the BMPs substitutes are also discussed.
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Affiliation(s)
- Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
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26
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Cho HJ, Perikamana SKM, Lee JH, Lee J, Lee KM, Shin CS, Shin H. Effective immobilization of BMP-2 mediated by polydopamine coating on biodegradable nanofibers for enhanced in vivo bone formation. ACS APPLIED MATERIALS & INTERFACES 2014; 6:11225-11235. [PMID: 24942379 DOI: 10.1021/am501391z] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Although bone morphogenic proteins (BMPs) have been widely used for bone regeneration, the ideal delivery system with optimized dose and minimized side effects is still active area of research. In this study, we developed bone morphogenetic protein-2(BMP-2) immobilized poly(l-lactide) (PLLA) nanofibers inspired by polydopamine, which could be ultimately used as membranes for guided bone regeneration, and investigated their effect on guidance of in vitro cell behavior and in vivo bone formation. Surface chemical analysis of the nanofibers confirmed successful immobilization of BMP-2 mediated by polydopamine, and about 90% of BMP-2 was stably retained on the nanofiber surface for at least 28 days. The alkaline phosphatase activity and calcium mineralization of human mesenchymal stem cells (hMSCs) after 14 days of in vitro culture was significantly enhanced on nanofibers immobilized with BMP-2. More importantly, BMP-2 at a relatively small dose was highly active following implantation to the critical-sized defect in the cranium of mice; radiographic analysis demonstrated that 77.8 ± 11.7% of newly formed bone was filled within the defect for a BMP-2-immobilized groups at the concentration of 124 ± 9 ng/cm(2), as compared to 5.9 ± 1.0 and 34.1 ± 5.5% recovery, for a defect-only and a polydopamine-only group, respectively. Scanning and transmission electron microscopy of samples from the BMP-2 immobilized group showed fibroblasts and osteoblasts with nanofiber strands in the middle of regenerated bone tissue, revealing the importance of interaction between implanted nanofibers and the neighboring extracellular environment. Taken together, our data support that the presentation of BMP-2 on the surface of nanofibers as immobilized by utilizing polydopamine chemistry may be an effective method to direct bone growth at relatively low local concentration.
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Affiliation(s)
- Hyeong-jin Cho
- Department of Bioengineering, Institute for Bioengineering and Biopharmaceutical Research, Hanyang University , Seoul 133-791, Republic of Korea
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27
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Chen W, Shi C, Hou X, Zhang W, Li L. Bladder acellular matrix conjugated with basic fibroblast growth factor for bladder regeneration. Tissue Eng Part A 2014; 20:2234-42. [PMID: 24483233 DOI: 10.1089/ten.tea.2013.0730] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Basic fibroblast growth factor (bFGF) plays an important role in wound repair and tissue regeneration. Considerable research has been focused on the exploration of bFGF delivery systems for maintaining efficient local concentration at the injury sites. In this study, bFGF was chemically crosslinked to the bladder acellular matrix (BAM) to create specific binding between bFGF and BAM. The BAM scaffold conjugated with bFGF (CL-BAM/bFGF) could bind more bFGF and achieve controlled release of bFGF, which promoted human fibroblasts to proliferate in vitro and accelerated cellularization and vascularization after subcutaneous implantation. Using the rat bladder reconstruction model, the CL-BAM/bFGF group showed better tissue regeneration compared with the other groups. In summary, CL-BAM/bFGF could prevent the diffusion of bFGF from BAM and maintain its activity. Thus, the scaffold conjugated with growth factor systems could be an effective way for maintaining local therapy dosage at the target site in wound repair and tissue regeneration.
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Affiliation(s)
- Wei Chen
- 1 Department of Urology, Xinqiao Hospital, The Third Military Medical University , Chongqing, China
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28
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BMP2 cross-linked by transglutaminase 2 to collagen-plla scaffold promotes osteogenic differentiation in mesenchymal stem cells. Biotechnol Lett 2014; 36:1901-7. [PMID: 24930093 DOI: 10.1007/s10529-014-1551-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 05/08/2014] [Indexed: 01/27/2023]
Abstract
Transglutaminase 2 (TG2) was used to attach biologically-active BMP2 to collagen type I-coated poly-L-lactic acid (PLLA) nanofibrous scaffolds. Irreversibly cross-linked BMP2 retained its activity and induced Smad-dependent gene expression in cells seeded on PLLA-BMP2 scaffolds. These modified scaffolds promote osteogenic differentiation of human bone marrow-derived mesenchymal stem cells (hBMSCs) cultured in low-serum and growth factor free medium and support deposition of the calcified matrix and induction of the molecular osteogenic markers Runx2, osteopontin, osteonectin and bone sialoprotein. Importantly, the PLLA-BMP2 scaffolds did not support chondrogenic differentiation in hBMSCs as there was no expression of chondrogenic markers aggrecan, Sox 9, and collagen type II, and no deposition of cartilaginous glycosaminoglycan-rich matrix. Thus, TG2-mediated cross-linking of BMP2 to a scaffold is a novel approach to induce osteoblast-specific programming of hBMSCs in a spatially controlled manner.
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29
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Fang J, Yang Z, Tan S, Tayag C, Nimni ME, Urata M, Han B. Injectable gel graft for bone defect repair. Regen Med 2014; 9:41-51. [DOI: 10.2217/rme.13.76] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Aim: To examine the performance of an injectable gel graft made of transglutaminase (Tg)-crosslinked gelatin gel with BMP-2 (BMP-2–Tg–Gel) for bone defect repair in animal models. Materials & methods: BMP-2 mixed with gelatin gel was crosslinked using Tg. The release of tethered BMP-2 through autocrine and paracrine pathways was demonstrated by using C2C12 and NIH 3T3 cells, respectively. BMP-2–Tg–Gel was injected into the induced cranial defect site. After 14 days, the sample was removed for x-ray imaging and histological evaluation. Results: Our in vivo results demonstrated that the injectable Tg–Gel with its osteoconductivity and controllable BMP-2 activity induced bone formation in our rat models when tethered with BMP-2. Conclusion: Tg–Gel as an injectable functional bone graft may enable the use of minimally invasive surgical procedures to treat irregular-shaped bone defects. Furthermore, this novel approach is capable of incorporating and controlling the release of therapeutic agents that may advance the science of tissue regeneration.
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Affiliation(s)
- Josephine Fang
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Keck Medical School, University of Southern California, 1333 San Pablo St, BMT 302A, Los Angeles, CA 90089-9112, USA
| | - Zhi Yang
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Keck Medical School, University of Southern California, 1333 San Pablo St, BMT 302A, Los Angeles, CA 90089-9112, USA
| | - ShihJye Tan
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA, USA
| | - Charisse Tayag
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Keck Medical School, University of Southern California, 1333 San Pablo St, BMT 302A, Los Angeles, CA 90089-9112, USA
| | - Marcel E Nimni
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Keck Medical School, University of Southern California, 1333 San Pablo St, BMT 302A, Los Angeles, CA 90089-9112, USA
| | - Mark Urata
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Keck Medical School, University of Southern California, 1333 San Pablo St, BMT 302A, Los Angeles, CA 90089-9112, USA
| | - Bo Han
- Division of Plastic & Reconstructive Surgery, Department of Surgery, Keck Medical School, University of Southern California, 1333 San Pablo St, BMT 302A, Los Angeles, CA 90089-9112, USA
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30
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Kong Z, Lin J, Yu M, Yu L, Li J, Weng W, Cheng K, Wang H. Enhanced loading and controlled release of rhBMP-2 in thin mineralized collagen coatings with the aid of chitosan nanospheres and its biological evaluations. J Mater Chem B 2014; 2:4572-4582. [PMID: 32261558 DOI: 10.1039/c4tb00404c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Osseointegration significantly accelerated by enhanced rhBMP-2 loading in thin mineralized collagen coatings with the aid of electrochemically injected chitosan nanospheres.
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Affiliation(s)
- Ziqiang Kong
- Department of Materials Science & Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou, China
| | - Jun Lin
- The First Affiliated Hospital Of Medical College
- Zhejiang University
- Hangzhou, China
| | - Mengfei Yu
- The First Affiliated Hospital Of Medical College
- Zhejiang University
- Hangzhou, China
| | - Lan Yu
- The First Affiliated Hospital Of Medical College
- Zhejiang University
- Hangzhou, China
| | - Juan Li
- The First Affiliated Hospital Of Medical College
- Zhejiang University
- Hangzhou, China
| | - Wenjian Weng
- Department of Materials Science & Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou, China
| | - Kui Cheng
- Department of Materials Science & Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou, China
| | - Huiming Wang
- The First Affiliated Hospital Of Medical College
- Zhejiang University
- Hangzhou, China
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31
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Saito W, Uchida K, Ueno M, Matsushita O, Inoue G, Nishi N, Ogura T, Hattori S, Fujimaki H, Tanaka K, Takaso M. Acceleration of bone formation during fracture healing by injectable collagen powder and human basic fibroblast growth factor containing a collagen-binding domain fromClostridium histolyticumcollagenase. J Biomed Mater Res A 2013; 102:3049-55. [DOI: 10.1002/jbm.a.34974] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 09/10/2013] [Accepted: 09/23/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Wataru Saito
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-ku Kitasato Kanagawa Japan
| | - Kentaro Uchida
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-ku Kitasato Kanagawa Japan
| | - Masaki Ueno
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-ku Kitasato Kanagawa Japan
| | - Osamu Matsushita
- Department of Bacteriology; Okayama University Graduate School of Medicine; 2-5-1 Kita-ku Shikata-cho Okayama Japan
| | - Gen Inoue
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-ku Kitasato Kanagawa Japan
| | - Nozomu Nishi
- Life Science Research Center; Kagawa University; 1750-1 Kita-gun Miki-cho Kagawa Japan
| | - Takayuki Ogura
- Nippi Research Institute of Biomatrix and Protein Engineering Project; 520-11 Kuwabara Toride-shi Ibaraki-ken Japan
| | - Shunji Hattori
- Nippi Research Institute of Biomatrix and Protein Engineering Project; 520-11 Kuwabara Toride-shi Ibaraki-ken Japan
| | - Hisako Fujimaki
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-ku Kitasato Kanagawa Japan
| | - Keisuke Tanaka
- Nippi Research Institute of Biomatrix and Protein Engineering Project; 520-11 Kuwabara Toride-shi Ibaraki-ken Japan
| | - Masashi Takaso
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-ku Kitasato Kanagawa Japan
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Lee YJ, Lee JH, Cho HJ, Kim HK, Yoon TR, Shin H. Electrospun fibers immobilized with bone forming peptide-1 derived from BMP7 for guided bone regeneration. Biomaterials 2013; 34:5059-69. [PMID: 23578562 DOI: 10.1016/j.biomaterials.2013.03.051] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 03/15/2013] [Indexed: 01/22/2023]
Abstract
The development of ideal barrier membranes with appropriate porosity and bioactivity is essential for the guidance of new bone formation in orthopedic and craniomaxillofacial surgery. In this study, we developed bioactive electrospun fibers based on poly (lactide-co-glycolic acid) (PLGA) by immobilizing bone-forming peptide 1 (BFP1) derived from the immature region of bone morphogenetic protein 7 (BMP7). We exploited polydopamine chemistry for the immobilization of BFP1; polydopamine (PD) was coated on the electrospun PLGA fibers, on which BFP1 was subsequently immobilized under weakly basic conditions. The immobilization of BFP1 was verified by characterizing the surface chemical composition and quantitatively measured by fluorescamine assay. The immobilization of BPF1 on the electrospun fibers supported the compact distribution of collagen I and the spreading of human mesenchymal stem cells (hMSCs). SEM micrographs demonstrated the aggregation of globular mineral accretions, with significant increases in ALP activity and calcium deposition when hMSCs were cultured on fibers immobilized with BFP1 for 14 days. We then implanted the prepared fibers onto mouse calvarial defects and analyzed bone formation after 2 months. Semi-quantification of bone growth from representative X-ray images showed that the bone area was approximately 20% in the defect-only group, while the group implanted with PLGA fibers showed significant improvements of 44.27 ± 7.37% and 57.59 ± 15.24% in the groups implanted with PD-coated PLGA and with BFP1-coated PLGA, respectively. Based on these results, our approach may be a promising tool to develop clinically-applicable bioactive membranes for guided bone regeneration."
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Affiliation(s)
- Young Jun Lee
- Department of Bioengineering, College of Engineering, Hanyang University, Seongdong-gu, Seoul 133-791, Republic of Korea
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Zwingenberger S, Yao Z, Jacobi A, Vater C, Valladares RD, Li C, Nich C, Rao AJ, Christman JE, Antonios JK, Gibon E, Schambach A, Mätzig T, Günther KP, Goodman SB, Stiehler M. Stem cell attraction via SDF-1α expressing fat tissue grafts. J Biomed Mater Res A 2012; 101:2067-74. [PMID: 23281045 DOI: 10.1002/jbm.a.34512] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 10/08/2012] [Accepted: 10/24/2012] [Indexed: 12/22/2022]
Abstract
Mesenchymal stromal cell (MSCs) are key cellular components for site-specific tissue regeneration. The chemokine stromal derived factor 1 alpha (SDF-1α) is known to attract stem cells via the C-X-C chemokine receptor-4 (CXCR4) receptor. The aim of the study was to develop a model for stem cell attraction using SDF-1α overexpressing fat tissue grafts. Murine MSCs were lentiviral transduced to express the genes for enhanced green fluorescent protein, firefly luciferace, and human CXCR4 (hCXCR4). Murine fat tissue was adenoviral transduced to express SDF-1α and red fluorescent protein transgenes. MSCs were cultured on transwells with SDF-1α containing supernatants from transduced fat tissue. The numbers of migrated MSCs in four groups (with hCXCR4 positive (+) or hCXCR4 negative (-) MSCs with or without SDF-1α containing supernatant) were investigated. After 36 h of culture, 9025 ± 925 cells migrated through the membrane of the transwells in group 1 (CXCR4+/SDF-1α+), 4817 ± 940 cells in group 2 (CXCR4-/SDF-1α+), 2050 ± 766 cells in group 3 (CXCR4+/SDF-1α-), and 2108 ± 426 cells in group 4 (CXCR4-/SDF-1α-). Both, the presence of SDF-1α and the expression of hCXCR4 significantly increased the migration rates (p < 0.0001). MSCs overexpressing the CXCR4 receptor by lentiviral transduction are highly attracted by medium from SDF-1α expressing fat tissue in vitro. Thus, SDF-1α activated tissue grafts may be a strategy to enhance site-specific musculoskeletal tissue regeneration.
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Affiliation(s)
- Stefan Zwingenberger
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA.
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Zustiak SP, Wei Y, Leach JB. Protein-hydrogel interactions in tissue engineering: mechanisms and applications. TISSUE ENGINEERING PART B-REVIEWS 2012; 19:160-71. [PMID: 23150926 DOI: 10.1089/ten.teb.2012.0458] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Recent advances in our understanding of the sophistication of the cellular microenvironment and the dynamics of tissue remodeling during development, disease, and regeneration have increased our appreciation of the current challenges facing tissue engineering. As this appreciation advances, we are better equipped to approach problems in the biology and therapeutics of even more complex fields, such as stem cells and cancer. To aid in these studies, as well as the established areas of tissue engineering, including cardiovascular, musculoskeletal, and neural applications, biomaterials scientists have developed an extensive array of materials with specifically designed chemical, mechanical, and biological properties. Herein, we highlight an important topic within this area of biomaterials research, protein-hydrogel interactions. Due to inherent advantages of hydrated scaffolds for soft tissue engineering as well as specialized bioactivity of proteins and peptides, this field is well-posed to tackle major needs within emerging areas of tissue engineering. We provide an overview of the major modes of interactions between hydrogels and proteins (e.g., weak forces, covalent binding, affinity binding), examples of applications within growth factor delivery and three-dimensional scaffolds, and finally future directions within the area of hydrogel-protein interactions that will advance our ability to control the cell-biomaterial interface.
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Affiliation(s)
- Silviya P Zustiak
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
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Dong Y, Zhang Q, Li Y, Jiang J, Chen S. Enhancement of tendon-bone healing for anterior cruciate ligament (ACL) reconstruction using bone marrow-derived mesenchymal stem cells infected with BMP-2. Int J Mol Sci 2012. [PMID: 23202970 PMCID: PMC3497344 DOI: 10.3390/ijms131013605] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
At present, due to the growing attention focused on the issue of tendon–bone healing, we carried out an animal study of the use of genetic intervention combined with cell transplantation for the promotion of this process. Here, the efficacy of bone marrow stromal cells infected with bone morphogenetic protein-2 (BMP-2) on tendon–bone healing was determined. A eukaryotic expression vector containing the BMP-2 gene was constructed and bone marrow-derived mesenchymal stem cells (bMSCs) were infected with a lentivirus. Next, we examined the viability of the infected cells and the mRNA and protein levels of BMP-2-infected bMSCs. Gastrocnemius tendons, gastrocnemius tendons wrapped by bMSCs infected with the control virus (bMSCs+Lv-Control), and gastrocnemius tendons wrapped by bMSCs infected with the recombinant BMP-2 virus (bMSCs+Lv-BMP-2) were used to reconstruct the anterior cruciate ligament (ACL) in New Zealand white rabbits. Specimens from each group were harvested four and eight weeks postoperatively and evaluated using biomechanical and histological methods. The bMSCs were infected with the lentivirus at an efficiency close to 100%. The BMP-2 mRNA and protein levels in bMSCs were significantly increased after lentiviral infection. The bMSCs and BMP-2-infected bMSCs on the gastrocnemius tendon improved the biomechanical properties of the graft in the bone tunnel; specifically, bMSCs infected with BMP-2 had a positive effect on tendon–bone healing. In the four-week and eight-week groups, bMSCs+Lv-BMP-2 group exhibited significantly higher maximum loads of 29.3 ± 7.4 N and 45.5 ± 11.9 N, respectively, compared with the control group (19.9 ± 6.4 N and 21.9 ± 4.9 N) (P = 0.041 and P = 0.001, respectively). In the eight-week groups, the stiffness of the bMSCs+Lv-BMP-2 group (32.5 ± 7.3) was significantly higher than that of the bMSCs+Lv-Control group (22.8 ± 7.4) or control groups (12.4 ± 6.0) (p = 0.036 and 0.001, respectively). Based on the histological findings, there was an increased amount of perpendicular collagen fibers formed between the tendon and bone in the bMSCs+Lv-Control and bMSCs+Lv-BMP-2 group, compared with the gastrocnemius tendons. The proliferation of cartilage-like cells and the formation of fibrocartilage-like tissue were highest within the bone tunnels in the bMSCs+Lv-BMP-2 group. These results suggest that this lentivirus can be used to efficiently infect bMSCs with BMP-2. Furthermore, tendons wrapped by bMSCs+Lv-BMP-2 improved tendon–bone healing.
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Affiliation(s)
- Yu Dong
- Department of Sports Medicine, Huashan Hospital, No. 12, Wulumuqi Zhong Road, Shanghai 200040, China; E-Mails: (Y.D.); (Y.L.); (J.J.)
| | - Qingguo Zhang
- Department of Orthopedics, Taizhou Hospital, Wenzhou Medical College, Linhai, Zhejiang 317000, China; E-Mail:
| | - Yunxia Li
- Department of Sports Medicine, Huashan Hospital, No. 12, Wulumuqi Zhong Road, Shanghai 200040, China; E-Mails: (Y.D.); (Y.L.); (J.J.)
| | - Jia Jiang
- Department of Sports Medicine, Huashan Hospital, No. 12, Wulumuqi Zhong Road, Shanghai 200040, China; E-Mails: (Y.D.); (Y.L.); (J.J.)
| | - Shiyi Chen
- Department of Sports Medicine, Huashan Hospital, No. 12, Wulumuqi Zhong Road, Shanghai 200040, China; E-Mails: (Y.D.); (Y.L.); (J.J.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-21-52888255; Fax: +86-21-62496020
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