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Suen PK, Zheng L, Yang QQ, Mak WS, Pak WY, Mo KY, Chan ML, Liu QQ, Qin L, Sun SSM. Lysine-rich rice partially enhanced the growth and development of skeletal system with better skeletal microarchitecture in young rats. Nutr Res 2024; 121:67-81. [PMID: 38043437 DOI: 10.1016/j.nutres.2023.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/07/2023] [Accepted: 11/07/2023] [Indexed: 12/05/2023]
Abstract
Rice is the primary staple food for half of the world's population but is low in lysine content. Previously, we developed transgenic rice with enhanced free lysine content in rice seeds (lysine-rich rice), which was shown safe for consumption and improved the growth in rats. However, the effects of lysine-rich rice on skeletal growth and development remained unknown. In this study, we hypothesized that lysine-rich rice improved skeletal growth and development in weaning rats. Male weaning Sprague-Dawley rats received lysine-rich rice (HFL) diet, wild-type rice (WT) diet, or wild-type rice with various contents of lysine supplementation diet for 70 days. Bone microarchitectures were examined by microcomputed tomography, bone strength was investigated by mechanical test, and dynamics of bone growth were examined by histomorphometric analysis. In addition, we explored the molecular mechanism of lysine and skeletal growth through biochemical testing of growth hormone, bone turnover marker, and amino acid content of rat serum analysis, as well as in a cell culture system. Results indicated that the HFL diet improved rats' bone growth, strength, and microarchitecture compared with the WT diet group. In addition, the HFL diet increased the serum essential amino acids, growth hormone (insulin-like growth factor-1), and bone formation marker concentrations. The cell culture model showed that lysine deficiency reduced insulin-like growth factor-1 and Osterix expression, Akt/mammalian target of rapamycin signaling, and matrix mineralization, and inhibited osteoblast differentiation associated with bone growth. Our findings showed that lysine-rich rice improved skeletal growth and development in weaning rats. A further increase of rice lysine content is highly desirable to fully optimize bone growth and development.
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Affiliation(s)
- Pui Kit Suen
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China; Institute of Plant Molecular Biology and Agriculture Biotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Lizhen Zheng
- Musculoskeletal Research Laboratory of Department of Orthopaedics & Traumatology and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health, The Chinese University of Hong Kong, Hong Kong SAR, China; Center for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Science, China
| | - Qing-Qing Yang
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China; China Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, China
| | - Wan Sheung Mak
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Wan Yu Pak
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Kit Ying Mo
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Man-Ling Chan
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Qiao-Quan Liu
- China Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, China
| | - Ling Qin
- Musculoskeletal Research Laboratory of Department of Orthopaedics & Traumatology and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - Samuel Sai-Ming Sun
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China; Institute of Plant Molecular Biology and Agriculture Biotechnology, The Chinese University of Hong Kong, Hong Kong SAR, China.
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Weng Y, Jian Y, Huang W, Xie Z, Zhou Y, Pei X. Alkaline earth metals for osteogenic scaffolds: From mechanisms to applications. J Biomed Mater Res B Appl Biomater 2023; 111:1447-1474. [PMID: 36883838 DOI: 10.1002/jbm.b.35246] [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: 08/23/2022] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 03/09/2023]
Abstract
Regeneration of bone defects is a significant challenge today. As alternative approaches to the autologous bone, scaffold materials have remarkable features in treating bone defects; however, the various properties of current scaffold materials still fall short of expectations. Due to the osteogenic capability of alkaline earth metals, their application in scaffold materials has become an effective approach to improving their properties. Furthermore, numerous studies have shown that combining alkaline earth metals leads to better osteogenic properties than applying them alone. In this review, the physicochemical and physiological characteristics of alkaline earth metals are introduced, mainly focusing on their mechanisms and applications in osteogenesis, especially magnesium (Mg), calcium (Ca), strontium (Sr), and barium (Ba). Furthermore, this review highlights the possible cross-talk between pathways when alkaline earth metals are combined. Finally, some of the current drawbacks of scaffold materials are enumerated, such as the high corrosion rate of Mg scaffolds and defects in the mechanical properties of Ca scaffolds. Moreover, a brief perspective is also provided regarding future directions in this field. It is worth exploring that whether the levels of alkaline earth metals in newly regenerated bone differs from those in normal bone. The ideal ratio of each element in the bone tissue engineering scaffolds or the optimal concentration of each elemental ion in the created osteogenic environment still needs further exploration. The review not only summarizes the research developments in osteogenesis but also offers a direction for developing new scaffold materials.
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Affiliation(s)
- Yihang Weng
- Department of Prosthodontics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China
| | - Yujia Jian
- Department of Prosthodontics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China
| | - Wenlong Huang
- Department of Prosthodontics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China
| | - Zhuojun Xie
- Department of Prosthodontics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China
| | - Ying Zhou
- Department of Prosthodontics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China
| | - Xibo Pei
- Department of Prosthodontics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China
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Oryan A, Hassanajili S, Sahvieh S. Zoledronate loaded polylactic acid/polycaprolactone/hydroxyapatite scaffold accelerates regeneration and led to enhance structural performance and functional ability of the radial bone defect in rat. IRANIAN JOURNAL OF VETERINARY RESEARCH 2023; 24:122-125. [PMID: 37790115 PMCID: PMC10542868 DOI: 10.22099/ijvr.2023.43807.6421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 12/22/2022] [Accepted: 01/24/2023] [Indexed: 10/05/2023]
Abstract
Abstract. Background One of the most common concerns in the regeneration of massive bone defects necessitating surgery and bone grafts is the application of tissue engineering using drug delivery. Zoledronate is a well-known effective drug for the healing bone fractures in osteoporotic patients. Aims An attempt was made to design a more efficient bone scaffold with polycaprolactone, polylactic acid, and hydroxyapatite. Methods The scaffold was fabricated by freeze-drying and indirect 3D printing approaches. X-ray diffraction, Fourier transform infrared spectroscopy, rheometry, scanning electron microscopy, and neutral red tests were performed to characterize the scaffold. qRT-PCR was also done to define the osteoinductivity and angiogenic induction capacity of this scaffold. Forty rats were selected and randomly divided into four groups: the control group, which received no treatment, the autograft group, scaffold group, and Zol-loaded scaffold group (n=10 in each group). The injured area was studied by radiology, biomechanical analysis, histopathology, histomorphometry, immunohistochemistry, and CT scan analyses. Results The qRT-PCR results demonstrated significantly higher expression levels of OPN, OCN, and CD31 markers in the scaffold group when compared to the control group (P<0.05). Histopathologically, the newly formed bone tissue was significantly detected in the Zol-loaded scaffold and autograft groups in comparison with the non-treated group (P<0.001). The immunohistochemistry (OC marker), biomechanical, and histomorphometric results indicated a significant improvement in the regeneration of the injured area in the groups treated with autologous bone and Zol-loaded scaffold compared to the non-treated group (P<0.05). Conclusion: The Zol-loaded scaffold accelerated bone regeneration, and led to enhanced structural performance and functional ability of the injured radial bone in rats.
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Affiliation(s)
- A. Oryan
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - S. Hassanajili
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
| | - S. Sahvieh
- Graduated from School of Veterinary Medicine, Shiraz University, Shiraz, Iran
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4
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Shan Z, Xie X, Wu X, Zhuang S, Zhang C. Development of degradable magnesium-based metal implants and their function in promoting bone metabolism (A review). J Orthop Translat 2022; 36:184-193. [PMID: 36263386 PMCID: PMC9552026 DOI: 10.1016/j.jot.2022.09.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/05/2022] [Accepted: 09/26/2022] [Indexed: 11/06/2022] Open
Abstract
Background Use of degradable magnesium (Mg)-based metal implants in orthopaedic surgeries can avoid drawbacks associated with subsequent removal of the non-degradable metallic implants, reducing cost and trauma of patients. Although Mg has been applied in the clinic for orthopaedic treatment, the use of Mg-based metal implants is largely in the research phase. But its application is potentially beneficial in this context as it has been shown that Mg can promote osteogenesis and inhibit osteoclast activity. Methods A systematic literature search about “degradable magnesium (Mg)-based metal implants” was performed in PubMed and Web of Science. Meanwhile, relevant findings have been reviewed and quoted. Results In this review, we summarize the latest developments in Mg-based metal implants and their role in bone regeneration. We also review the various molecular mechanisms by which Mg ions regulate bone metabolic processes, including osteogenesis, osteoclast activity, angiogenesis, immunity, and neurology. Finally, we discuss the remaining research challenges and opportunities for Mg-based implants and their applications. Conclusion Currently, establishment of the in vitro and in vivo biological evaluation systems and phenotypic modification improvement of Mg-based implants are still needed. Clarifying the functions of Mg-based metal implants in promoting bone metabolism is beneficial for their clinical application. The Translational potential of this article All current reviews on Mg-based implants are mainly concerned with the improvement of Mg alloy properties or the progress of applications. However, there are few reviews that provides a systematic narrative on the effect of Mg on bone metabolism. This review summarized the latest developments in Mg-based metal implants and various molecular mechanisms of Mg ions regulating bone metabolism, which is beneficial to further promote the translation of Mg based implants in the clinic and is able to provide a strong basis for the clinical application of Mg based implants.
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Affiliation(s)
- Zhengming Shan
- School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China
| | - Xinhui Xie
- School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China
- The Department of Orthopaedics, ZhongDa Hospital, Nanjing, Jiangsu, 210009, China
- Corresponding author. The Department of Orthopaedics, ZhongDa hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China.
| | - Xiaotao Wu
- School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China
- The Department of Orthopaedics, ZhongDa Hospital, Nanjing, Jiangsu, 210009, China
- Corresponding author. The Department of Orthopaedics, ZhongDa hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China.
| | - Suyang Zhuang
- School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China
- The Department of Orthopaedics, ZhongDa Hospital, Nanjing, Jiangsu, 210009, China
| | - Cong Zhang
- School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, China
- The Department of Orthopaedics, ZhongDa Hospital, Nanjing, Jiangsu, 210009, China
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5
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Ganguly P, Jones E, Panagiotopoulou V, Jha A, Blanchy M, Antimisiaris S, Anton M, Dhuiège B, Marotta M, Marjanovic N, Panagiotopoulos E, Giannoudis PV. Electrospun and 3D printed polymeric materials for one-stage critical-size long bone defect regeneration inspired by the Masquelet technique: Recent Advances. Injury 2022; 53 Suppl 2:S2-S12. [PMID: 35305805 DOI: 10.1016/j.injury.2022.02.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 02/09/2022] [Accepted: 02/11/2022] [Indexed: 02/02/2023]
Abstract
Critical-size long bone defects represent one of the major causes of fracture non-union and remain a significant challenge in orthopaedic surgery. Two-stage procedures such as a Masquelet technique demonstrate high level of success however their main disadvantage is the need for a second surgery, which is required to remove the non-resorbable cement spacer and to place the bone graft into the biological chamber formed by the 'induced membrane'. Recent research efforts have therefore been dedicated towards the design, fabrication and testing of resorbable implants that could mimic the biological functions of the cement spacer and the induced membrane. Amongst the various manufacturing techniques used to fabricate these implants, three-dimensional (3D) printing and electrospinning methods have gained a significant momentum due their high-level controllability, scalable processing and relatively low cost. This review aims to present recent advances in the evaluation of electrospun and 3D printed polymeric materials for critical-size, long bone defect reconstruction, emphasizing both their beneficial properties and current limitations. Furthermore, we present and discuss current state-of-the art techniques required for characterisation of the materials' physical, mechanical and biological characteristics. These represent the essential first steps towards the development of personalised implants for single-surgery, large defect reconstruction in weight-bearing bones.
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Affiliation(s)
- Payal Ganguly
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
| | - Elena Jones
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
| | | | - Animesh Jha
- School of Chemical and Process Engineering, University of Leeds, Leeds, UK
| | - Marilys Blanchy
- RESCOLL, Allée Geoffroy Saint-Hilaire 8, 33600 Pessac, France
| | - Sophia Antimisiaris
- Panepistimio Patron (UPAT), University Campus Rio Patras, Rio Patras 265 04, Greece
| | - Martina Anton
- Klinikum Rechts Der Isar Der Technischen Universitat Munchen (TUM-MED), Ismaninger Strasse 22, Muenchen 81675, Germany
| | - Benjamin Dhuiège
- Genes'ink (GENE), 39 Avenue Gaston Imbert Zi De Rousset, Rousset 13790, France
| | - Mario Marotta
- Acondicionamiento tarrasense associacion (LEITAT), Carrer de la Innovacio 2, Terrassa 08225, Spain
| | - Nenad Marjanovic
- CSEM Centre Suisse D'electronique et de Microtechnique Sa - Recherche et Developpement (CSEM), Rue Jaquet Droz 1, Neuchatel 2000, Switzerland
| | | | - Peter V Giannoudis
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK; Leeds General Infirmary, Department of Trauma and Orthopaedic Surgery, University of Leeds, Leeds, UK.
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6
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Zhang Y, Li C, Zhang W, Deng J, Nie Y, Du X, Qin L, Lai Y. 3D-printed NIR-responsive shape memory polyurethane/magnesium scaffolds with tight-contact for robust bone regeneration. Bioact Mater 2022; 16:218-231. [PMID: 35415289 PMCID: PMC8965852 DOI: 10.1016/j.bioactmat.2021.12.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 12/13/2021] [Accepted: 12/26/2021] [Indexed: 01/01/2023] Open
Abstract
Patients with bone defects suffer from a high rate of disability and deformity. Poor contact of grafts with defective bones and insufficient osteogenic activities lead to increased loose risks and unsatisfied repair efficacy. Although self-expanding scaffolds were developed to enhance bone integration, the limitations on the high transition temperature and the unsatisfied bioactivity hindered greatly their clinical application. Herein, we report a near-infrared-responsive and tight-contacting scaffold that comprises of shape memory polyurethane (SMPU) as the thermal-responsive matrix and magnesium (Mg) as the photothermal and bioactive component, which fabricated by the low temperature rapid prototyping (LT-RP) 3D printing technology. As designed, due to synergistic effects of the components and the fabrication approach, the composite scaffold possesses a homogeneously porous structure, significantly improved mechanical properties and stable photothermal effects. The programmed scaffold can be heated to recover under near infrared irradiation in 60s. With 4 wt% Mg, the scaffold has the balanced shape fixity ratio of 93.6% and shape recovery ratio of 95.4%. The compressed composite scaffold could lift a 100 g weight under NIR light, which was more than 1700 times of its own weight. The results of the push-out tests and the finite element analysis (FEA) confirmed the tight-contacting ability of the SMPU/4 wt%Mg scaffold, which had a signficant enhancement compared to the scaffold without shape memory effects. Furthermore, The osteopromotive function of the scaffold has been demonstrated through a series of in vitro and in vivo studies. We envision this scaffold can be a clinically effective strategy for robust bone regeneration.
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Affiliation(s)
- Yuanchi Zhang
- Centre for Translational Medicine Research & Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Cairong Li
- Centre for Translational Medicine Research & Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Wei Zhang
- Centre for Translational Medicine Research & Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Junjie Deng
- Centre for Translational Medicine Research & Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yangyi Nie
- Centre for Translational Medicine Research & Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Xiangfu Du
- Centre for Translational Medicine Research & Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Ling Qin
- Centre for Translational Medicine Research & Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
- CAS-HK Joint Lab of Biomaterials, Shenzhen, China
| | - Yuxiao Lai
- Centre for Translational Medicine Research & Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- University of Chinese Academy of Sciences, Shenzhen, China
- Key Laboratory of Health Informatics, Chinese Academy of Sciences, Shenzhen, China
- CAS-HK Joint Lab of Biomaterials, Shenzhen, China
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7
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Zhu Y, Dai B, Li X, Liu W, Wang J, Xu J, Xu S, He X, Zhang S, Li Q, Qin L, Ngai T. Periosteum-Inspired Membranes Integrated with Bioactive Magnesium Oxychloride Ceramic Nanoneedles for Guided Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2022; 14:39830-39842. [PMID: 36026585 DOI: 10.1021/acsami.2c10615] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Guided bone regeneration (GBR) technique using a barrier membrane holds great potential to allow the single-stage reconstruction of critical-sized bone defects. Here, bioactive nanoneedle-like magnesium oxychloride ceramics (MOCs) are synthesized and recruited as an osteoinductive factor within a polycaprolactone-gelatin A (PCL-GelA) membranous matrix to generate a periosteum-mimicking biphasic GBR membrane (PCL-GelA/MOC) to accelerate calvarial defect repair. The PCL-GelA/MOC membrane acts as a shield for defect areas and a reservoir of osteoinductive molecules, which provides a favorable microenvironment for supporting cell proliferation, infiltration, and differentiation. This membrane leads to accelerated osteogenesis and angiogenesis, effectual defect bridging, and significantly enhanced bone regeneration when applied to a 5 mm sized rat calvarial defect. This makes this innovative and multifunctional GBR membrane a suitable candidate for clinical applications with promising curative efficacy.
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Affiliation(s)
- Yuwei Zhu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, P. R. China
| | - Bingyang Dai
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, P. R. China
| | - Xu Li
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, P. R. China
| | - Wei Liu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, P. R. China
| | - Jiangpeng Wang
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, P. R. China
| | - Jiankun Xu
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, P. R. China
| | - Shunxiang Xu
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, P. R. China
| | - Xuan He
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, P. R. China
| | - Shian Zhang
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, P. R. China
| | - Quan Li
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, P. R. China
| | - Ling Qin
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, P. R. China
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, P. R. China
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8
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Cao H, Li L, Li L, Meng X, Liu Y, Cheng W, Zhang P, Gao Y, Qin L, Wang X. New use for old drug: Local delivery of puerarin facilitates critical-size defect repair in rats by promoting angiogenesis and osteogenesis. J Orthop Translat 2022; 36:52-63. [PMID: 35979175 PMCID: PMC9352809 DOI: 10.1016/j.jot.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 04/20/2022] [Accepted: 05/05/2022] [Indexed: 11/02/2022] Open
Abstract
Objectives Methods Results Conclusion The Translational Potential of this Article
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9
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Chen Z, Zhang W, Wang M, Backman LJ, Chen J. Effects of Zinc, Magnesium, and Iron Ions on Bone Tissue Engineering. ACS Biomater Sci Eng 2022; 8:2321-2335. [PMID: 35638755 DOI: 10.1021/acsbiomaterials.2c00368] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Large-sized bone defects are a great challenge in clinics and considerably impair the quality of patients' daily life. Tissue engineering strategies using cells, scaffolds, and bioactive molecules to regulate the microenvironment in bone regeneration is a promising approach. Zinc, magnesium, and iron ions are natural elements in bone tissue and participate in many physiological processes of bone metabolism and therefore have great potential for bone tissue engineering and regeneration. In this review, we performed a systematic analysis on the effects of zinc, magnesium, and iron ions in bone tissue engineering. We focus on the role of these ions in properties of scaffolds (mechanical strength, degradation, osteogenesis, antibacterial properties, etc.). We hope that our summary of the current research achievements and our notifications of potential strategies to improve the effects of zinc, magnesium, and iron ions in scaffolds for bone repair and regeneration will find new inspiration and breakthroughs to inspire future research.
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Affiliation(s)
- Zhixuan Chen
- School of Medicine, Southeast University, 210009 Nanjing, China.,Center for Stem Cell and Regenerative Medicine, Southeast University, 210009 Nanjing, China
| | - Wei Zhang
- School of Medicine, Southeast University, 210009 Nanjing, China.,Center for Stem Cell and Regenerative Medicine, Southeast University, 210009 Nanjing, China.,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, 210096 Nanjing, China.,China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou 310058, China
| | - Mingyue Wang
- School of Medicine, Southeast University, 210009 Nanjing, China.,Center for Stem Cell and Regenerative Medicine, Southeast University, 210009 Nanjing, China
| | - Ludvig J Backman
- Department of Integrative Medical Biology, Anatomy, Umeå University, SE-901 87 Umeå, Sweden.,Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University, SE-901 87 Umeå, Sweden
| | - Jialin Chen
- School of Medicine, Southeast University, 210009 Nanjing, China.,Center for Stem Cell and Regenerative Medicine, Southeast University, 210009 Nanjing, China.,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, 210096 Nanjing, China.,China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou 310058, China
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10
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3D-printed, bi-layer, biomimetic artificial periosteum for boosting bone regeneration. Biodes Manuf 2022. [DOI: 10.1007/s42242-022-00191-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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11
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Shibahara K, Hayashi K, Nakashima Y, Ishikawa K. Effects of Channels and Micropores in Honeycomb Scaffolds on the Reconstruction of Segmental Bone Defects. Front Bioeng Biotechnol 2022; 10:825831. [PMID: 35372306 PMCID: PMC8971796 DOI: 10.3389/fbioe.2022.825831] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/01/2022] [Indexed: 01/17/2023] Open
Abstract
The reconstruction of critical-sized segmental bone defects is a key challenge in orthopedics because of its intractability despite technological advancements. To overcome this challenge, scaffolds that promote rapid bone ingrowth and subsequent bone replacement are necessary. In this study, we fabricated three types of carbonate apatite honeycomb (HC) scaffolds with uniaxial channels bridging the stumps of a host bone. These HC scaffolds possessed different channel and micropore volumes. The HC scaffolds were implanted into the defects of rabbit ulnar shafts to evaluate the effects of channels and micropores on bone reconstruction. Four weeks postoperatively, the HC scaffolds with a larger channel volume promoted bone ingrowth compared to that with a larger micropore volume. In contrast, 12 weeks postoperatively, the HC scaffolds with a larger volume of the micropores rather than the channels promoted the scaffold resorption by osteoclasts and bone formation. Thus, the channels affected bone ingrowth in the early stage, and micropores affected scaffold resorption and bone formation in the middle stage. Furthermore, 12 weeks postoperatively, the HC scaffolds with large volumes of both channels and micropores formed a significantly larger amount of new bone than that attained using HC scaffolds with either large volume of channels or micropores, thereby bridging the host bone stumps. The findings of this study provide guidance for designing the pore structure of scaffolds.
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Affiliation(s)
- Keigo Shibahara
- Department of Biomaterials Faculty of Dental Science, Kyushu University, Fukuoka, Japan
- Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koichiro Hayashi
- Department of Biomaterials Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yasuharu Nakashima
- Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kunio Ishikawa
- Department of Biomaterials Faculty of Dental Science, Kyushu University, Fukuoka, Japan
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12
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Wang X, Sun H, Song M, Yan G, Wang Q. The Biodegradability and in Vitro Cytological Study on the Composite of PLGA Combined With Magnesium Metal. Front Bioeng Biotechnol 2022; 10:859280. [PMID: 35372307 PMCID: PMC8965571 DOI: 10.3389/fbioe.2022.859280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 02/11/2022] [Indexed: 11/13/2022] Open
Abstract
The main goal of this study was to develop a novel poly (lactic-co-glycolic acid) (PLGA) composite biodegradable material with magnesium (Mg) metal to overcome the acidic degradation of PLGA and to investigate the cytocompatibility and osteogenesis of the novel material. PLGA composites with 5 and 10 wt% Mg were prepared. The samples were initially cut into 10 mm × 10 mm films, which were used to detect the pH value to evaluate the self-neutralized ability. Murine embryo osteoblast precursor (MC3T3-E1) cells were used for in vitro experiments to evaluate the cytotoxicity, apoptosis, adhesion, and osteogenic differentiation effect of the composite biodegradable material. pH monitoring showed that the average value of PLGA with 10 wt% Mg group was closer to the normal physiological environment than that of other groups. Cell proliferation and adhesion assays indicated no significant difference between the groups, and all the samples showed no toxicity to cells. As for cell apoptosis detection, the rate of early apoptotic cells was proportional to the ratio of Mg. However, the ratios of the experimental groups were lower than those of the control group. Alkaline phosphatase activity staining demonstrated that PLGA with 10 wt% Mg could effectively improve the osteogenic differentiation of MC3T3-E1 cells. In summary, PLGA with 10 wt% Mg possessed effective osteogenic properties and cytocompatibility and therefore could provide a wide range of applications in bone defect repair and scaffold-based tissue engineering in clinical practice.
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Affiliation(s)
- Xue Wang
- School and Hospital of Stomatology, China Medical University, Shenyang, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Hui Sun
- School and Hospital of Stomatology, China Medical University, Shenyang, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Mang Song
- School and Hospital of Stomatology, China Medical University, Shenyang, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Guangqi Yan
- School and Hospital of Stomatology, China Medical University, Shenyang, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
- *Correspondence: Guangqi Yan,
| | - Qiang Wang
- School and Hospital of Stomatology, China Medical University, Shenyang, China
- Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
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13
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Mi J, Xu J, Yao Z, Yao H, Li Y, He X, Dai B, Zou L, Tong W, Zhang X, Hu P, Ruan YC, Tang N, Guo X, Zhao J, He J, Qin L. Implantable Electrical Stimulation at Dorsal Root Ganglions Accelerates Osteoporotic Fracture Healing via Calcitonin Gene-Related Peptide. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2103005. [PMID: 34708571 PMCID: PMC8728818 DOI: 10.1002/advs.202103005] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/11/2021] [Indexed: 05/18/2023]
Abstract
The neuronal engagement of the peripheral nerve system plays a crucial role in regulating fracture healing, but how to modulate the neuronal activity to enhance fracture healing remains unexploited. Here it is shown that electrical stimulation (ES) directly promotes the biosynthesis and release of calcitonin gene-related peptide (CGRP) by activating Ca2+ /CaMKII/CREB signaling pathway and action potential, respectively. To accelerate rat femoral osteoporotic fracture healing which presents with decline of CGRP, soft electrodes are engineered and they are implanted at L3 and L4 dorsal root ganglions (DRGs). ES delivered at DRGs for the first two weeks after fracture increases CGRP expression in both DRGs and fracture callus. It is also identified that CGRP is indispensable for type-H vessel formation, a biological event coupling angiogenesis and osteogenesis, contributing to ES-enhanced osteoporotic fracture healing. This proof-of-concept study shows for the first time that ES at lumbar DRGs can effectively promote femoral fracture healing, offering an innovative strategy using bioelectronic device to enhance bone regeneration.
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Affiliation(s)
- Jie Mi
- Musculoskeletal Research LaboratoryDepartment of Orthopedics & TraumatologyInnovative Orthopaedic Biomaterial and Drug Translational Research LaboratoryLi Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong KongHong Kong999077China
- Shanghai Key Laboratory of Orthopaedic ImplantsDepartment of OrthopaedicsShanghai Ninth People's HospitalShanghai Jiao Tong University School of Medicine639 Zhizaoju RoadShanghai200011People's Republic of China
| | - Jian‐Kun Xu
- Musculoskeletal Research LaboratoryDepartment of Orthopedics & TraumatologyInnovative Orthopaedic Biomaterial and Drug Translational Research LaboratoryLi Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong KongHong Kong999077China
| | - Zhi Yao
- Musculoskeletal Research LaboratoryDepartment of Orthopedics & TraumatologyInnovative Orthopaedic Biomaterial and Drug Translational Research LaboratoryLi Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong KongHong Kong999077China
| | - Hao Yao
- Musculoskeletal Research LaboratoryDepartment of Orthopedics & TraumatologyInnovative Orthopaedic Biomaterial and Drug Translational Research LaboratoryLi Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong KongHong Kong999077China
| | - Ye Li
- Musculoskeletal Research LaboratoryDepartment of Orthopedics & TraumatologyInnovative Orthopaedic Biomaterial and Drug Translational Research LaboratoryLi Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong KongHong Kong999077China
| | - Xuan He
- Musculoskeletal Research LaboratoryDepartment of Orthopedics & TraumatologyInnovative Orthopaedic Biomaterial and Drug Translational Research LaboratoryLi Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong KongHong Kong999077China
| | - Bing‐Yang Dai
- Musculoskeletal Research LaboratoryDepartment of Orthopedics & TraumatologyInnovative Orthopaedic Biomaterial and Drug Translational Research LaboratoryLi Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong KongHong Kong999077China
| | - Li Zou
- Musculoskeletal Research LaboratoryDepartment of Orthopedics & TraumatologyInnovative Orthopaedic Biomaterial and Drug Translational Research LaboratoryLi Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong KongHong Kong999077China
| | - Wen‐Xue Tong
- Musculoskeletal Research LaboratoryDepartment of Orthopedics & TraumatologyInnovative Orthopaedic Biomaterial and Drug Translational Research LaboratoryLi Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong KongHong Kong999077China
| | - Xiao‐Tian Zhang
- Department of Biomedical EngineeringThe Hong Kong Polytechnic UniversityHung Hom999077Hong Kong
| | - Pei‐Jie Hu
- Department of Biomedical EngineeringThe Hong Kong Polytechnic UniversityHung Hom999077Hong Kong
| | - Ye Chun Ruan
- Department of Biomedical EngineeringThe Hong Kong Polytechnic UniversityHung Hom999077Hong Kong
| | - Ning Tang
- Musculoskeletal Research LaboratoryDepartment of Orthopedics & TraumatologyInnovative Orthopaedic Biomaterial and Drug Translational Research LaboratoryLi Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong KongHong Kong999077China
| | - Xia Guo
- Department of Biomedical EngineeringThe Hong Kong Polytechnic UniversityHung Hom999077Hong Kong
| | - Jie Zhao
- Shanghai Key Laboratory of Orthopaedic ImplantsDepartment of OrthopaedicsShanghai Ninth People's HospitalShanghai Jiao Tong University School of Medicine639 Zhizaoju RoadShanghai200011People's Republic of China
| | - Ju‐Fang He
- Departments of Neuroscience and Biomedical SciencesCity University of Hong KongKowloon Tong999077Hong Kong
| | - Ling Qin
- Musculoskeletal Research LaboratoryDepartment of Orthopedics & TraumatologyInnovative Orthopaedic Biomaterial and Drug Translational Research LaboratoryLi Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong KongHong Kong999077China
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14
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Chen X, Hu Y, Geng Z, Su J. The "Three in One" Bone Repair Strategy for Osteoporotic Fractures. Front Endocrinol (Lausanne) 2022; 13:910602. [PMID: 35757437 PMCID: PMC9218483 DOI: 10.3389/fendo.2022.910602] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/09/2022] [Indexed: 12/17/2022] Open
Abstract
In aging society, osteoporotic fractures have become one major social problem threatening the health of the elderly population in China. Compared with conventional fractures, low bone mass, bone defect and retarded healing issues of osteoporotic fractures lead to great difficulties in treatment and rehabilitation. Addressing major concerns in clinical settings, we proposed the "three in one" bone repair strategy focusing on anti-osteoporosis therapies, appropriate bone grafting and fracture healing accelerating. We summarize misconceptions and repair strategies for osteoporotic fracture management, expecting improvement of prognosis and clinical outcomes for osteoporotic fractures, to further improve therapeutic effect and living quality of patients.
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Affiliation(s)
- Xiao Chen
- Department of Traumatic Orthopedics, First Affiliated Hospital of Navy Medical University, Shanghai, China
| | - Yan Hu
- Institute of Translational Medicine, Shanghai University, Shanghai, China
| | - Zhen Geng
- Institute of Translational Medicine, Shanghai University, Shanghai, China
| | - Jiacan Su
- Department of Traumatic Orthopedics, First Affiliated Hospital of Navy Medical University, Shanghai, China
- Institute of Translational Medicine, Shanghai University, Shanghai, China
- *Correspondence: Jiacan Su,
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15
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Long J, Teng B, Zhang W, Li L, Zhang M, Chen Y, Yao Z, Meng X, Wang X, Qin L, Lai Y. Preclinical evaluation of acute systemic toxicity of magnesium incorporated poly(lactic-co-glycolic acid) porous scaffolds by three-dimensional printing. BIOMATERIALS TRANSLATIONAL 2021; 2:272-284. [PMID: 35836655 PMCID: PMC9255806 DOI: 10.12336/biomatertransl.2021.03.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/31/2021] [Accepted: 08/20/2021] [Indexed: 11/11/2022]
Abstract
Biodegradable polymer scaffolds combined with bioactive components which accelerate osteogenesis and angiogenesis have promise for use in clinical bone defect repair. The preclinical acute toxicity evaluation is an essential assay of implantable biomaterials to assess the biosafety for accelerating clinical translation. We have successfully developed magnesium (Mg) particles and beta-tricalcium phosphate (β-TCP) for incorporation into poly(lactic-co-glycolic acid) (PLGA) porous composite scaffolds (PTM) using low-temperature rapid prototyping three-dimensional-printing technology. The PTM scaffolds have been fully evaluated and found to exhibit excellent osteogenic capacity for bone defect repair. The preclinical evaluation of acute systemic toxicities is essential and important for development of porous scaffolds to facilitate their clinical translation. In this study, acute systemic toxicity of the PTM scaffolds was evaluated in mice by intraperitoneal injection of the extract solutions of the scaffolds. PTM composite scaffolds with different Mg and β-TCP content (denoted as PT5M, PT10M, and PT15M) were extracted with different tissue culture media, including normal saline, phosphate-buffered saline , and serum-free minimum essential medium , to create the extract solutions. The evaluation was carried out following the National Standard. The acute toxicity was fully evaluated through the collection of extensive data, including serum/organs ion concentration, fluorescence staining, and in vivo median lethal dose measurement. Mg in major organs (heart, liver, and lung), and Mg ion concentrations in serum of mice, after intraperitoneal injection of the extract solutions, were measured and showed that the extract solutions of PT15M caused significant elevation of serum Mg ion concentrations, which exceeded the safety threshold and led to the death of the mice. In contrast, the extract solutions of PT5M and PT10M scaffolds did not cause the death of the injected mice. The median lethal dose of Mg ions in vivo for mice was determined for the first time in this study to be 110.66 mg/kg, and the safety level of serum magnesium toxicity in mice is 5.4 mM, while the calcium serum safety level is determined as 3.4 mM. The study was approved by the Animal Care and Use Committee of Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (approval No. SIAT-IRB-170401-YGS-LYX-A0346) on April 5, 2017. All these results showed that the Mg ion concentration of intraperitoneally-injected extract solutions was a determinant of mouse survival, and a high Mg ion concentration (more than 240 mM) was the pivotal factor contributing to the death of the mice, while changes in pH value showed a negligible effect. The comprehensive acute systemic toxicity evaluation for PTM porous composite scaffolds in this study provided a reference to guide the design and optimization of this composite scaffold and the results demonstrated the preclinical safety of the as-fabricated PTM scaffold with appropriate Mg content, strongly supporting the official registration process of the PTM scaffold as a medical device for clinical translation.
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Affiliation(s)
- Jing Long
- Centre for Translational Medicine and Research and Development, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China
| | - Bin Teng
- Centre for Energy Metabolism and Reproduction, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China
| | - Wei Zhang
- Centre for Translational Medicine and Research and Development, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China
| | - Long Li
- Centre for Translational Medicine and Research and Development, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China,Guangdong Engineering Laboratory of Biomaterials Additive Manufacturing, Guangdong, Guangdong Province, China
| | - Ming Zhang
- Guangdong Engineering Laboratory of Biomaterials Additive Manufacturing, Guangdong, Guangdong Province, China
| | - Yingqi Chen
- Guangdong Engineering Laboratory of Biomaterials Additive Manufacturing, Guangdong, Guangdong Province, China
| | - Zhenyu Yao
- Centre for Translational Medicine and Research and Development, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China
| | - Xiangbo Meng
- Centre for Translational Medicine and Research and Development, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China
| | - Xinluan Wang
- Centre for Translational Medicine and Research and Development, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China
| | - Ling Qin
- Centre for Translational Medicine and Research and Development, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China,Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Yuxiao Lai
- Centre for Translational Medicine and Research and Development, Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China,Centre for Energy Metabolism and Reproduction, Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China,Key Laboratory of Health Informatics, Chinese Academy of Sciences, Shenzhen, Guangdong Province, China,Corresponding author: Yuxiao Lai,
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16
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Wang M, Yang Y, Chi G, Yuan K, Zhou F, Dong L, Liu H, Zhou Q, Gong W, Yang S, Tang T. A 3D printed Ga containing scaffold with both anti-infection and bone homeostasis-regulating properties for the treatment of infected bone defects. J Mater Chem B 2021; 9:4735-4745. [PMID: 34095948 DOI: 10.1039/d1tb00387a] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Large bone defects face a high risk of infection, which can also lead to bone homeostasis disorders. This seriously hinders the bone healing process; therefore, the help of a dual-functional scaffold that has both anti-infection and bone-homeostasis-regulating capacities is needed in the treatment of infected bone defects. In this study, a 3D printed dual-functional scaffold composed of poly-ε-caprolactone (PCL), mesoporous bioactive glasses (MBG), and gallium (Ga) was produced. In vitro experiments demonstrated the excellent antibacterial ability of the PCL/MBG/Ga scaffold against methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli (E. coli). The scaffold also significantly inhibited osteoclastic activity and promoted osteogenic differentiation. Furthermore, a rabbit model with an infected bone defect in the radius was used to evaluate the in vivo bone healing capability of PCL/MBG/Ga. The results demonstrate that the PCL/MBG/Ga scaffold can significantly accelerate bone healing and prevent bone resorption, suggesting its potential for application in repairing infected bone defects.
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Affiliation(s)
- Minqi Wang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| | - Yiqi Yang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| | - Guanghao Chi
- Department of Orthopedics, Han Zhong Central Hospital, Shanxi 723000, China
| | - Kai Yuan
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| | - Feng Zhou
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| | - Liang Dong
- Shanghai Graphic Design Information Co. Ltd, Shanghai 200011, China
| | - Haibei Liu
- Shanghai Graphic Design Information Co. Ltd, Shanghai 200011, China
| | - Qinghui Zhou
- Shanghai Graphic Design Information Co. Ltd, Shanghai 200011, China
| | - Weihua Gong
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| | - Shengbing Yang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
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17
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Chow DHK, Wang J, Wan P, Zheng L, Ong MTY, Huang L, Tong W, Tan L, Yang K, Qin L. Biodegradable magnesium pins enhanced the healing of transverse patellar fracture in rabbits. Bioact Mater 2021; 6:4176-4185. [PMID: 33997501 PMCID: PMC8099917 DOI: 10.1016/j.bioactmat.2021.03.044] [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: 08/16/2020] [Revised: 03/29/2021] [Accepted: 03/29/2021] [Indexed: 12/20/2022] Open
Abstract
Displaced fractures of patella often require open reduction surgery and internal fixation to restore the extensor continuity and articular congruity. Fracture fixation with biodegradable magnesium (Mg) pins enhanced fracture healing. We hypothesized that fixation with Mg pins and their degradation over time would enhance healing of patellar fracture radiologically, mechanically, and histologically. Transverse patellar fracture surgery was performed on thirty-two 18-weeks old female New Zealand White Rabbits. The fracture was fixed with a pin made of stainless steel or pure Mg, and a figure-of-eight stainless steel band wire. Samples were harvested at week 8 or 12, and assessed with microCT, tensile testing, microindentation, and histology. Microarchitectural analysis showed that Mg group showed 12% higher in the ratio of bone volume to tissue volume at week 8, and 38.4% higher of bone volume at week 12. Tensile testing showed that the failure load and stiffness of Mg group were 66.9% and 104% higher than the control group at week 8, respectively. At week 12, Mg group was 60.8% higher in ultimate strength than the control group. Microindentation showed that, compared to the Control group, Mg group showed 49.9% higher Vickers hardness and 31% higher elastic modulus at week 8 and 12, respectively. At week 12, the new bone of Mg group remodelled to laminar bone, but those of the control group remained woven bone-like. Fixation of transverse patellar fracture with Mg pins and its degradation enhanced new bone formation and mechanical properties of the repaired patella compared to the Control group. Kirschner wires (K-wire) with tension band wire is widely used fixation implants for repairing of displaced patellar fractures. Fixation of patellar fracture with Mg pins enhanced new bone formation and mechanical properties of the repaired patella. With a stainless steel tension band wire, Mg pins may be an alternative to K-wire for fixation of patellar fractures.
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Affiliation(s)
- Dick Ho Kiu Chow
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.,Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Jiali Wang
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.,Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Peng Wan
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China.,School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, China
| | - Lizhen Zheng
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.,Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Michael Tim Yun Ong
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Le Huang
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.,Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Wenxue Tong
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.,Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Lili Tan
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Ling Qin
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.,Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
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18
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Sahvieh S, Oryan A, Hassanajili S, Kamali A. Role of bone 1stem cell-seeded 3D polylactic acid/polycaprolactone/hydroxyapatite scaffold on a critical-sized radial bone defect in rat. Cell Tissue Res 2021; 383:735-750. [PMID: 32924069 DOI: 10.1007/s00441-020-03284-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 08/14/2020] [Indexed: 01/07/2023]
Abstract
Osteoconductive biomaterials were used to find the most reliable materials in bone healing. Our focus was on the bone healing capacity of the stem cell-loaded and unloaded PLA/PCL/HA scaffolds. The 3D scaffold of PLA/PCL/HA was characterized by scanning electron microscopy (SEM), rheology, X-ray diffraction (XRD), and Fourier transform-infrared (FT-IR) spectroscopy. Bone marrow stem cells (BMSCs) have multipotential differentiation into osteoblasts. Forty Wistar male rats were used to organize four experimental groups: control, autograft, scaffold, and BMSCs-loaded scaffold groups. qRT-PCR showed that the BMSCs-loaded scaffold had a higher expression level of CD31 and osteogenic markers compared with the control group (P < 0.05). Radiology and computed tomography (CT) scan evaluations showed significant improvement in the BMSCs-loaded scaffold compared with the control group (P < 0.001). Biomechanical estimation demonstrated significantly higher stress (P < 0.01), stiffness (P < 0.001), and ultimate load (P < 0.01) in the autograft and BMSCs-loaded scaffold groups compared with the untreated group and higher strain was seen in the control group than the other groups (P < 0.01). Histomorphometric and immunohistochemical (IHC) investigations showed significantly improved regeneration scores in the autograft and BMSCs-loaded scaffold groups compared with the control group (P < 0.05). Also, there was a significant difference between the scaffold and control groups in all tests (P < 0.05). The results depicted that our novel approach will allow to develop PLA/PCL/HA 3D scaffold in bone healing via BMSC loading.
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Affiliation(s)
- Sonia Sahvieh
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| | - Shadi Hassanajili
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
| | - Amir Kamali
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
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19
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Li Y, Wu R, Yu L, Shen M, Ding X, Lu F, Liu M, Yang X, Gou Z, Xu S. Rational design of nonstoichiometric bioceramic scaffolds via digital light processing: tuning chemical composition and pore geometry evaluation. J Biol Eng 2021; 15:1. [PMID: 33407741 PMCID: PMC7789156 DOI: 10.1186/s13036-020-00252-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 12/03/2020] [Indexed: 11/26/2022] Open
Abstract
Bioactive ceramics are promising candidates as 3D porous substrates for bone repair in bone regenerative medicine. However, they are often inefficient in clinical applications due to mismatching mechanical properties and compromised biological performances. Herein, the additional Sr dopant is hypothesized to readily adjust the mechanical and biodegradable properties of the dilute Mg-doped wollastonite bioceramic scaffolds with different pore geometries (cylindrical-, cubic-, gyroid-) by ceramic stereolithography. The results indicate that the compressive strength of Mg/Sr co-doped bioceramic scaffolds could be tuned simultaneously by the Sr dopant and pore geometry. The cylindrical-pore scaffolds exhibit strength decay with increasing Sr content, whereas the gyroid-pore scaffolds show increasing strength and Young's modulus as the Sr concentration is increased from 0 to 5%. The ion release could also be adjusted by pore geometry in Tris buffer, and the high Sr content may trigger a faster scaffold bio-dissolution. These results demonstrate that the mechanical strengths of the bioceramic scaffolds can be controlled from the point at which their porous structures are designed. Moreover, scaffold bio-dissolution can be tuned by pore geometry and doping foreign ions. It is reasonable to consider the nonstoichiometric bioceramic scaffolds are promising for bone regeneration, especially when dealing with pathological bone defects.
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Affiliation(s)
- Yifan Li
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, Zhejiang Province 310003 P. R. China
| | - Ronghuan Wu
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, Zhejiang Province 310003 P. R. China
| | - Li Yu
- Operation Room, the First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, 310003 Zhejiang Province P. R. China
| | - Miaoda Shen
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, Zhejiang Province 310003 P. R. China
| | - Xiaoquan Ding
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, Zhejiang Province 310003 P. R. China
| | - Fengling Lu
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, #866 Yuhangtang Road, Hangzhou, Zhejiang Province 310058 P. R. China
| | - Mengtao Liu
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, #866 Yuhangtang Road, Hangzhou, Zhejiang Province 310058 P. R. China
| | - Xianyan Yang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, #866 Yuhangtang Road, Hangzhou, Zhejiang Province 310058 P. R. China
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, #866 Yuhangtang Road, Hangzhou, Zhejiang Province 310058 P. R. China
| | - Sanzhong Xu
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, Zhejiang Province 310003 P. R. China
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20
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Patel A, Zaky SH, Li H, Schoedel K, Almarza AJ, Sfeir C, Sant V, Sant S. Bottom-Up Self-assembled Hydrogel-Mineral Composites Regenerate Rabbit Ulna Defect without Added Growth Factors. ACS APPLIED BIO MATERIALS 2020; 3:5652-5663. [PMID: 35021797 DOI: 10.1021/acsabm.0c00371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hydrogel-based biomaterials have advanced bone tissue engineering approaches in the last decade, through their ability to serve as a carrier for potent growth factor, bone morphogenic protein-2 (BMP-2). However, biophysical properties of hydrogels such as multiscale structural hierarchy and bone extracellular matrix (ECM)-mimetic microarchitecture are underutilized while designing current bone grafts. Incorporation of these properties offers great potential to create a favorable biomimetic microenvironment to harness their regenerative potential. Here, we present our approach to fabricate collagen-inspired bioactive hydrogel scaffolds (referred to as "RegenMatrix") to guide and enhance bone regeneration in a rabbit ulna defect model through the mimicry of multiscale architecture of bone ECM, i.e., native collagen. Specifically, we employed polyelectrolyte complexation to promote bottom-up self-assembly of oppositely charged polysaccharides (chitosan and kappa-carrageenan) at multiple length scales forming fibrils, which further assemble into fibers. The self-assembly and bioinspired scaffold fabrication method resulted in robust cylindrical RegenMatrix with excellent retention of the multiscale architecture and uniform mineral deposition throughout the scaffolds. RegenMatrix, in both nonmineralized and mineralized forms, enhanced bone regeneration in the semiload-bearing ulna defect when compared to the empty defect. RegenMatrix also showed greater histocompatibility without any fibrous tissue formation. Collectively, the RegenMatrix developed in this study has a great potential as a bioactive bone graft without any added growth factors.
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Affiliation(s)
- Akhil Patel
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Samer H Zaky
- Center for Craniofacial Regeneration, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Hongshuai Li
- Musculoskeletal Growth & Regeneration Laboratory, Department of Orthopaedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Karen Schoedel
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Alejandro J Almarza
- Center for Craniofacial Regeneration, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States.,Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, United States.,McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania 15260, United States
| | - Charles Sfeir
- Center for Craniofacial Regeneration, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States.,Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, United States.,McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania 15260, United States
| | - Vinayak Sant
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Shilpa Sant
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States.,Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, United States.,McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania 15260, United States.,UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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21
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Guo Q, Peng J, Wang A, Li G, Qin L. In memory of Prof. Lu Shibi, MD. J Orthop Translat 2020; 23:A1. [PMID: 32913708 PMCID: PMC7452205 DOI: 10.1016/j.jot.2020.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 06/30/2020] [Indexed: 11/30/2022] Open
Affiliation(s)
- Quanyi Guo
- Department of Orthopaedics and Traumatology, PLA General Hospital, Beijing, PR China
| | - Jiang Peng
- Department of Orthopaedics and Traumatology, PLA General Hospital, Beijing, PR China
| | - Aiyuan Wang
- Department of Orthopaedics and Traumatology, PLA General Hospital, Beijing, PR China
| | - Gang Li
- Department of Orthopadeics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR PR China
- Corresponding author.
| | - Ling Qin
- Department of Orthopadeics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR PR China
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22
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Magnesium-containing silk fibroin/polycaprolactone electrospun nanofibrous scaffolds for accelerating bone regeneration. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.03.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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23
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Chu G, Zhang W, Zhou P, Yuan Z, Zhu C, Wang H, Li J, Zhou F, Yang Q, Yang H, Li B. Substrate Topography Regulates Differentiation of Annulus Fibrosus-Derived Stem Cells via CAV1-YAP-Mediated Mechanotransduction. ACS Biomater Sci Eng 2020; 7:862-871. [PMID: 33715372 DOI: 10.1021/acsbiomaterials.9b01823] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Regeneration of annulus fibrosus (AF) through tissue engineering techniques shows promise as a treatment for patients with degenerative disc disease (DDD). Yet, it remains challenging because of the intrinsic heterogeneity of AF tissue and shortage of in-depth knowledge of its structure-function correlation. In the current study, we fabricated fibrous poly(ether carbonate urethane)urea (PECUU) scaffolds with various fiber sizes to mimic the microstructural feature of native AF and aimed to regulate the differentiation of AF-derived stem cells (AFSCs) by controlling the topographical cues of the scaffold. We found that the morphology of AFSCs varied significantly on scaffolds with various fiber sizes. Meanwhile, the expression of the phenotypic marker genes of outer AF was up-regulated on scaffolds with large fibers. Meanwhile, enhanced expression of the phenotypic marker genes of inner AF was seen on scaffolds with small fibers. Such topography-dependent gene expression in AFSCs approximated the biochemical profile of AF tissue in various zones. Moreover, cell spreading and nucleus translocation of Yes-associated protein (YAP) were facilitated with increased fiber size. Formation and maturation of focal adhesions of AFSCs were also promoted. We also found that Caveolin-1 (CAV1) positively modulated the mechano-responses of YAP in response to substrate topography. In conclusion, depending on the activation of the CAV1-YAP mechanotransduction axis, tuning the fiber size of scaffolds can effectively induce changes in cell shape, adhesions, and extracellular matrix expression. This work may therefore provide new insights in the design of novel materials toward AF tissue regeneration.
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Affiliation(s)
- Genglei Chu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Medical College, Soochow University, Suzhou, Jiangsu 215007, China
| | - Weidong Zhang
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Medical College, Soochow University, Suzhou, Jiangsu 215007, China
| | - Pinghui Zhou
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Bengbu Medical College, Bengbu, Anhui 233004, China.,Anhui Province Key Laboratory of Tissue Transplantation, School of Life Sciences, Bengbu Medical College, Bengbu, Anhui, China
| | - Zhangqin Yuan
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Medical College, Soochow University, Suzhou, Jiangsu 215007, China
| | - Caihong Zhu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Medical College, Soochow University, Suzhou, Jiangsu 215007, China
| | - Huan Wang
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Medical College, Soochow University, Suzhou, Jiangsu 215007, China
| | - Jiaying Li
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Medical College, Soochow University, Suzhou, Jiangsu 215007, China
| | - Feng Zhou
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Medical College, Soochow University, Suzhou, Jiangsu 215007, China
| | - Qiang Yang
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, China.,China Orthopaedic Regenerative Medicine Group (CORMed), Hangzhou, Zhejiang 310000, China
| | - Huilin Yang
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Medical College, Soochow University, Suzhou, Jiangsu 215007, China
| | - Bin Li
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Medical College, Soochow University, Suzhou, Jiangsu 215007, China.,China Orthopaedic Regenerative Medicine Group (CORMed), Hangzhou, Zhejiang 310000, China
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24
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Zhou P, Chu G, Yuan Z, Wang H, Zhang W, Mao Y, Zhu X, Chen W, Yang H, Li B. Regulation of differentiation of annulus fibrosus-derived stem cells using heterogeneous electrospun fibrous scaffolds. J Orthop Translat 2020; 26:171-180. [PMID: 33437636 PMCID: PMC7773966 DOI: 10.1016/j.jot.2020.02.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 02/02/2020] [Accepted: 02/06/2020] [Indexed: 01/07/2023] Open
Abstract
Background Tissue engineering of the annulus fibrosus (AF) shows promise as a treatment for patients with degenerative disc disease (DDD). However, it remains challenging due to the intrinsic heterogeneity of AF tissue. Fabrication of scaffolds recapitulating the specific cellular, componential, and microstructural features of AF, therefore, is critical to successful AF tissue regeneration. Methods Poly-L-lactic acid (PLLA) fibrous scaffolds with various fiber diameters and orientation were prepared to mimic the microstructural characteristics of AF tissue using electrospinning technique. AF-derived stem cells (AFSCs) were cultured on the PLLA fibrous scaffolds for 7 days. Results The morphology of AFSCs significantly varied when cultured on the scaffolds with various fiber diameters and orientation. AFSCs were nearly round on scaffolds with small fibers. However, they became spindle-shaped on scaffolds with large fibers. Meanwhile, upregulated expression of collagen-I gene happened in cells cultured on scaffolds with large fibers, while enhanced expression of collagen-II and aggrecan genes was seen on scaffolds with small fibers. The production of related proteins also showed similar trends. Further, culturing AFSCs on a heterogeneous scaffold by overlaying membranes with different fiber sizes led to the formation of a hierarchical structure approximating native AF tissue. Conclusion Findings from this study demonstrate that fibrous scaffolds with different fiber sizes effectively promoted the differentiation of AFSCs into specific cells similar to the types of cells at various AF zones. It also provides a valuable reference for regulation of cell differentiation and fabrication of engineered tissues with complex hierarchical structures using the physical cues of scaffolds. The translational potential of this article Effective AF repair is an essential need for treating degenerative disc disease. Tissue engineering is a promising approach to achieving tissue regeneration and restoring normal functions of tissues. By mimicking the key structural features of native AF tissue, including fiber size and alignment, this study deciphered the effect of scaffold materials on the cell differentiation and extracellular matrix deposition, which provides a solid basis for designing new strategies toward more effective AF repair and regeneration.
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Affiliation(s)
- Pinghui Zhou
- Department of Orthopedics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China.,Anhui Province Key Laboratory of Tissue Transplantation, School of Life Sciences, Bengbu Medical College, Bengbu, Anhui, China
| | - Genglei Chu
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Zhangqin Yuan
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Huan Wang
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Weidong Zhang
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Yingji Mao
- Anhui Province Key Laboratory of Tissue Transplantation, School of Life Sciences, Bengbu Medical College, Bengbu, Anhui, China
| | - Xuesong Zhu
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Weiguo Chen
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Huilin Yang
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Bin Li
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
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25
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Cao Y, Yang S, Zhao D, Li Y, Cheong SS, Han D, Li Q. Three-dimensional printed multiphasic scaffolds with stratified cell-laden gelatin methacrylate hydrogels for biomimetic tendon-to-bone interface engineering. J Orthop Translat 2020; 23:89-100. [PMID: 32514393 PMCID: PMC7267011 DOI: 10.1016/j.jot.2020.01.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/18/2019] [Accepted: 01/13/2020] [Indexed: 12/18/2022] Open
Abstract
Background The anatomical properties of the enthesis of the rotator cuff are hardly regained during the process of healing. The tendon-to-bone interface is normally replaced by fibrovascular tissue instead of interposition fibrocartilage, which impairs biomechanics in the shoulder and causes dysfunction. Tissue engineering offers a promising strategy to regenerate a biomimetic interface. Here, we report heterogeneous tendon-to-bone interface engineering based on a 3D-printed multiphasic scaffold. Methods A multiphasic poly(ε-caprolactone) (PCL)–PCL/tricalcium phosphate (TCP)–PCL/TCP porous scaffold was manufactured using 3D printing technology. The three phases of the scaffold were designed to mimic the graded tissue regions in the tendon-to-bone interface—tendon, fibrocartilage, and bone. Fibroblasts, bone marrow–derived mesenchymal stem cells, and osteoblasts were separately encapsulated in gelatin methacrylate (GelMA) and loaded seriatim on the relevant phases of the scaffold, by which a cells/GelMA-multiphasic scaffold (C/G-MS) construct, replicating the native interface, was fabricated. Cell proliferation, viability, and chondrogenic differentiation were evaluated in vitro. The C/G-MS constructs were further examined to determine the potential of regenerating a continuous interface with gradual transition of teno-, fibrocartilage- and osteo-like tissues in vivo. Results In vitro tests confirmed the good cytocompatibility of the constructs. After seven days in culture, cellular microfilament staining indicated that not only could cells well proliferate in GelMA hydrogels but also efficiently attach to and grow on scaffold fibres. Moreover, by immunolocalizing collagen type II, chondrogenesis was identified in the intermediate phase of the C/G-MS construct that had been treated with transforming growth factor β3 for 21 days. After subcutaneous implantation in mice, the C/G-MS construct exhibited a heterogeneous and graded structure up to eight weeks, with distinguished matrix distribution observed at one week. Overall, gene expression of tenogenic, chondrogenic, and osteogenic markers showed increasing patterns for eight weeks. Among them, expression of collagen type X gene was found drastically increasing during eight weeks, indicating progressive formation of calcifying cartilage within the constructs. Conclusion Our findings demonstrate that the stratified manner of fabrication based on the 3D-printed multiphasic scaffold is an effective strategy for tendon-to-bone interface engineering in terms of efficient cell seeding, chondrogenic potential, and distinct matrix deposition in varying phases. The translational potential of this article We fabricated a biomimetic tendon-to-bone interface by using a 3D-printed multiphasic scaffold and adopting a stratified cell-seeding manner with GelMA. The biomimetic interface might have applications in tendon-to-bone repair in the rotator cuff. It can not only be an alternative to a biological fixation device but also offer an ex vivo living graft to replace the damaged enthesis.
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Affiliation(s)
- Yi Cao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shengbing Yang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Danyang Zhao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yun Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sou San Cheong
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dong Han
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Corresponding author. Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 17/F, No. 1 Building, 639 Zhi Zao Ju Road, Shanghai, 200011, PR China.
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Corresponding author. Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 19/F, No. 1 Building, 639 Zhi Zao Ju Road, Shanghai, 200011, PR China.
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26
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Zhu Y, Zheng L, Liu W, Qin L, Ngai T. Poly(l-lactic acid) (PLLA)/MgSO4·7H2O Composite Coating on Magnesium Substrates for Corrosion Protection and Cytocompatibility Promotion. ACS APPLIED BIO MATERIALS 2020; 3:1364-1373. [DOI: 10.1021/acsabm.9b00983] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Yuwei Zhu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin N. T., Hong Kong
| | - Lizhen Zheng
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Faculty of Medicine, The Chinese University of Hong Kong, Shatin N. T., Hong Kong
| | - Wei Liu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin N. T., Hong Kong
| | - Ling Qin
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Faculty of Medicine, The Chinese University of Hong Kong, Shatin N. T., Hong Kong
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong, Shatin N. T., Hong Kong
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27
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Cao XY, Chen C, Tian N, Dong X, Liang X, Xu LJ, Cheng CK. Long-term study on the osteogenetic capability and mechanical behavior of a new resorbable biocomposite anchor in a canine model. J Orthop Translat 2020; 21:81-90. [PMID: 32110507 PMCID: PMC7033359 DOI: 10.1016/j.jot.2019.12.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 12/16/2019] [Accepted: 12/18/2019] [Indexed: 02/08/2023] Open
Abstract
Background Biodegradable suture anchors are commonly used for repairing torn rotator cuffs, but these biodegradable materials still suffer from low mechanical strength, poor osteointegration, and the generation of acidic degradation byproducts. Method The purpose of this study was to evaluate the long-term mechanical behavior and osteogenetic capabilities of a biocomposite anchor injection molded with 30% β-tricalcium phosphate microparticles blended with 70% poly (L-lactide-co-glycolide) (85/15). This study investigated in vitro degradation and in vivo bone formation in a canine model. The initial mechanical behavior, mechanical strength retention with degradation time, and degradation features were investigated. Results The results showed that the biocomposite anchor had sufficient initial mechanical stability confirmed by comparing the initial shear load on the anchor with the minimum shear load borne by an ankle fracture fixation screw, which is considered a worst-case implantation site for mechanical loading. The maximum shear load retention of the biocomposite anchor was 83% at 12 weeks, which is desirable, as it aligns with the rate of bone healing. The β-tricalcium phosphate fillers were evenly dispersed in the polymeric matrix and acted to slow the degradation rate and improve the mechanical strength of the anchor. The interface characteristics between the β-tricalcium phosphate particles and the polymeric matrix changed the degradation behavior of the biocomposite. Phosphate buffer saline was shown to diffuse through the interface into the biocomposite to inhibit the core accelerated degradation rate. In vivo, the addition of β-tricalcium phosphate induced new bone formation. The biocomposite material developed in this study demonstrated improved osteogenesis in comparison to a plain poly (L-lactide-co-glycolide) material. Neither anchor produced adverse tissue reactions, indicating that the biocomposite had favorable biocompatibility following long-term implantation. Conclusion In summary, the new biocomposite anchor presented in this study had favorable osteogenetic capability, mechanical property, and controlled degradation rate for bone fixation. Translational potential of this article The new biocomposite anchor had sufficient initial and long-term fixation stability and bone formation capability in the canine model. It is indicated that the new biocomposite anchor has a potential for orthopedic application.
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Affiliation(s)
- Xiao-Yan Cao
- School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, 100191, China.,School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Cheng Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Na Tian
- Beijing Engineering Laboratory of Functional Medical Materials and Devices, Beijing Naton Technology Group Co. LTD, Beijing, 100094, China
| | - Xiang Dong
- Beijing Engineering Laboratory of Functional Medical Materials and Devices, Beijing Naton Technology Group Co. LTD, Beijing, 100094, China
| | - Xing Liang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Li-Jun Xu
- School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, 100191, China.,Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beijing, 100191, China
| | - Cheng-Kung Cheng
- School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, China
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28
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Chu W, Zhuang Y, Gan Y, Wang X, Tang T, Dai K. Comparison and characterization of enriched mesenchymal stem cells obtained by the repeated filtration of autologous bone marrow through porous biomaterials. J Transl Med 2019; 17:377. [PMID: 31739793 PMCID: PMC6862755 DOI: 10.1186/s12967-019-02131-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 11/07/2019] [Indexed: 12/19/2022] Open
Abstract
Background When bone marrow is repeatedly filtered through porous material, the mesenchymal stem cells (MSCs) in the bone marrow can adhere to the outer and inner walls of the carrier material to become enriched locally, and this is a promising method for MSC enrichment. In this process, the enrichment efficiency of MSCs involved in the regulation of the cell ecology of postfiltration composites containing other bone marrow components is affected by many factors. This study compared the enrichment efficiency and characterized the phenotypes of enriched MSCs obtained by the filtration of autologous bone marrow through different porous bone substitutes. Methods Human bone marrow was filtered through representative porous materials, and different factors affecting MSC enrichment efficiency were evaluated. The soluble proteins and MSC phenotypes in the bone marrow before and after filtration were also compared. Results The enrichment efficiency of the MSCs found in gelatin sponges was 96.1% ± 3.4%, which was higher than that of MSCs found in allogeneic bone (72.5% ± 7.6%) and porous β-TCP particles (61.4% ± 5.4%). A filtration frequency of 5–6 and a bone marrow/material volume ratio of 2 achieved the best enrichment efficiency for MSCs. A high-throughput antibody microarray indicated that the soluble proteins were mostly filtered out and remained in the flow through fluid, whereas a small number of proteins were abundantly (> 50%) enriched in the biomaterial. In terms of the phenotypic characteristics of the MSCs, including the cell aspect ratio, osteogenetic fate, specific antigens, gene expression profile, cell cycle stage, and apoptosis rate, no significant changes were found before or after filtration. Conclusion When autologous bone marrow is rapidly filtered through porous bone substitutes, the optimal enrichment efficiency of MSCs can be attained by the rational selection of the type of carrier material, the bone marrow/carrier material volume ratio, and the filtration frequency. The enrichment of bone marrow MSCs occurs during filtration, during which the soluble proteins in the bone marrow are also absorbed to a certain extent. This filtration enrichment technique does not affect the phenotype of the MSCs and thus may provide a safe alternative method for MSC enrichment.
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Affiliation(s)
- Wenxiang Chu
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.,Department of Orthopedic Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Yifu Zhuang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yaokai Gan
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
| | - Xin Wang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Kerong Dai
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
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