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Seraji AA, Nahavandi R, Kia A, Rabbani Doost A, Keshavarz V, Sharifianjazi F, Tavamaishvili K, Makarem D. Finite element analysis and in vitro tests on endurance life and durability of composite bone substitutes. Front Bioeng Biotechnol 2024; 12:1417440. [PMID: 39301173 PMCID: PMC11410606 DOI: 10.3389/fbioe.2024.1417440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Accepted: 08/27/2024] [Indexed: 09/22/2024] Open
Abstract
Bone structures facilitate the regeneration and repair of bone tissue in regions where it has been damaged or destroyed, either temporarily or permanently. Therefore, the bone's fatigue strength and durability are crucial to its efficacy and longevity. Several variables, such as the construct's material qualities, design, and production procedure, loading and unloading cycles, and physiological conditions influence the endurance life of bone constructs. Metals, ceramics, and polymers are all routinely utilized to create bone substitutes, and each of these materials has unique features that might affect the fatigue strength and endurance life of the final product. The mechanical performance and capacity to promote bone tissue regeneration may be affected by the scaffold's design, porosity, and pore size. Researchers employ mechanical testing under cyclic loading circumstances as one example of an experimental approach used to assess bone construction endurance. These analyses can give us important information about the stress-strain behavior, resistance to multiple loading cycles, and fatigue strength of the new structure. Predicting the endurance life of the developed construct may also be possible with the use of simulations and numerical analyses. Hence, in order to create reliable and efficient constructs for bone tissue engineering, it is crucial to understand their fatigue strength and durability. The purpose of this study is to analyze the effective parameters for fatigue strength of bone structures and to gather the models and evaluations utilized in endurance life assessments.
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Affiliation(s)
- Amir Abbas Seraji
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran
| | - Reza Nahavandi
- Department of Biochemical and Pharmaceutical Engineering, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Amir Kia
- Department of Mechanical Engineering, University of Guilan, Rasht, Iran
| | - Ahad Rabbani Doost
- Department of Biomaterials, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Vahid Keshavarz
- Department of Materials Engineering, Faculty of Engineering and Technology, Imam Khomeini International University, Qazvin, Iran
| | - Fariborz Sharifianjazi
- Center for Advanced Materials and Structures, School of Science and Technology, The University of Georgia, Tbilisi, Georgia
| | | | - Dorna Makarem
- Escuela Tecnica Superior de Ingenieros de Telecomunicacion Politecnica de Madrid, Madrid, Spain
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2
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Zhang M, An H, Gu Z, Zhang YC, Wan T, Jiang HR, Zhang FS, Jiang BG, Han N, Wen YQ, Zhang PX. Multifunctional wet-adhesive chitosan/acrylic conduit for sutureless repair of peripheral nerve injuries. Int J Biol Macromol 2023; 253:126793. [PMID: 37709238 DOI: 10.1016/j.ijbiomac.2023.126793] [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: 05/25/2023] [Revised: 08/30/2023] [Accepted: 09/05/2023] [Indexed: 09/16/2023]
Abstract
The incidence of peripheral nerve injury (PNI) is high worldwide, and a poor prognosis is common. Surgical closure and repair of the affected area are crucial to ensure the effective treatment of peripheral nerve injuries. Despite being the standard treatment approach, reliance on sutures to seal the severed nerve ends introduces several limitations and restrictions. This technique is intricate and time-consuming, and the application of threading and punctate sutures may lead to tissue damage and heightened tension concentrations, thus increasing the risk of fixation failure and local inflammation. This study aimed to develop easily implantable chitosan-based peripheral nerve repair conduits that combine acrylic acid and cleavable N-hydroxysuccinimide to reduce nerve damage during repair. In ex vivo tissue adhesion tests, the conduit achieved maximal interfacial toughness of 705 J m-2 ± 30 J m-2, allowing continuous bridging of the severed nerve ends. Adhesive repair significantly reduces local inflammation caused by conventional sutures, and the positive charge of chitosan disrupts the bacterial cell wall and reduces implant-related infections. This promises to open new avenues for sutureless nerve repair and reliable medical implants.
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Affiliation(s)
- Meng Zhang
- Department of Orthopedics and Trauma, Peking University People's Hospital, Key Laboratory of Trauma and Neural Regeneration, Peking University, National Center for Trauma Medicine, Beijing 100044, China.
| | - Heng An
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry & Biological Engineering, University of Science & Technology Beijing, Beijing 100083, China.
| | - Zhen Gu
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry & Biological Engineering, University of Science & Technology Beijing, Beijing 100083, China.
| | - Yi-Chong Zhang
- Department of Orthopedics and Trauma, Peking University People's Hospital, Key Laboratory of Trauma and Neural Regeneration, Peking University, National Center for Trauma Medicine, Beijing 100044, China.
| | - Teng Wan
- Department of Orthopedics and Trauma, Peking University People's Hospital, Key Laboratory of Trauma and Neural Regeneration, Peking University, National Center for Trauma Medicine, Beijing 100044, China.
| | - Hao-Ran Jiang
- Department of Orthopedics and Trauma, Peking University People's Hospital, Key Laboratory of Trauma and Neural Regeneration, Peking University, National Center for Trauma Medicine, Beijing 100044, China.
| | - Feng-Shi Zhang
- Department of Orthopedics and Trauma, Peking University People's Hospital, Key Laboratory of Trauma and Neural Regeneration, Peking University, National Center for Trauma Medicine, Beijing 100044, China.
| | - Bao-Guo Jiang
- Department of Orthopedics and Trauma, Peking University People's Hospital, Key Laboratory of Trauma and Neural Regeneration, Peking University, National Center for Trauma Medicine, Beijing 100044, China.
| | - Na Han
- Department of Orthopedics and Trauma, Peking University People's Hospital, Key Laboratory of Trauma and Neural Regeneration, Peking University, National Center for Trauma Medicine, Beijing 100044, China.
| | - Yong-Qiang Wen
- Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry & Biological Engineering, University of Science & Technology Beijing, Beijing 100083, China.
| | - Pei-Xun Zhang
- Department of Orthopedics and Trauma, Peking University People's Hospital, Key Laboratory of Trauma and Neural Regeneration, Peking University, National Center for Trauma Medicine, Beijing 100044, China.
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3
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Liu F, Sun T, An Y, Ming L, Li Y, Zhou Z, Shang F. The potential therapeutic role of extracellular vesicles in critical-size bone defects: Spring of cell-free regenerative medicine is coming. Front Bioeng Biotechnol 2023; 11:1050916. [PMID: 36733961 PMCID: PMC9887316 DOI: 10.3389/fbioe.2023.1050916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/02/2023] [Indexed: 01/19/2023] Open
Abstract
In recent years, the incidence of critical-size bone defects has significantly increased. Critical-size bone defects seriously affect patients' motor functions and quality of life and increase the need for additional clinical treatments. Bone tissue engineering (BTE) has made great progress in repairing critical-size bone defects. As one of the main components of bone tissue engineering, stem cell-based therapy is considered a potential effective strategy to regenerate bone tissues. However, there are some disadvantages including phenotypic changes, immune rejection, potential tumorigenicity, low homing efficiency and cell survival rate that restrict its wider clinical applications. Evidence has shown that the positive biological effects of stem cells on tissue repair are largely mediated through paracrine action by nanostructured extracellular vesicles (EVs), which may overcome the limitations of traditional stem cell-based treatments. In addition to stem cell-derived extracellular vesicles, the potential therapeutic roles of nonstem cell-derived extracellular vesicles in critical-size bone defect repair have also attracted attention from scholars in recent years. Currently, the development of extracellular vesicles-mediated cell-free regenerative medicine is still in the preliminary stage, and the specific mechanisms remain elusive. Herein, the authors first review the research progress and possible mechanisms of extracellular vesicles combined with bone tissue engineering scaffolds to promote bone regeneration via bioactive molecules. Engineering modified extracellular vesicles is an emerging component of bone tissue engineering and its main progression and clinical applications will be discussed. Finally, future perspectives and challenges of developing extracellular vesicle-based regenerative medicine will be given. This review may provide a theoretical basis for the future development of extracellular vesicle-based biomedicine and provide clinical references for promoting the repair of critical-size bone defects.
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Affiliation(s)
- Fen Liu
- Department of Periodontology, Shenzhen Stomatological Hospital (Pingshan), Southern Medical University, Shenzhen, Guangdong, China
| | - Tianyu Sun
- Department of Periodontology, Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Ying An
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture and Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Leiguo Ming
- Department of Research and Development, Shaanxi Zhonghong Institute of Regenerative Medicine, Xi’an, Shaanxi, China
| | - Yinghui Li
- Department of Orthodontics, Stomatological Hospital, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Zhifei Zhou
- Department of Stomatology, General Hospital of Tibetan Military Command, Lhasa, Tibet, China,*Correspondence: Fengqing Shang, ; Zhifei Zhou,
| | - Fengqing Shang
- Department of Stomatology, Air Force Medical Center, Fourth Military Medical University, Beijing, China,*Correspondence: Fengqing Shang, ; Zhifei Zhou,
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4
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You Q, Lu M, Li Z, Zhou Y, Tu C. Cell Sheet Technology as an Engineering-Based Approach to Bone Regeneration. Int J Nanomedicine 2022; 17:6491-6511. [PMID: 36573205 PMCID: PMC9789707 DOI: 10.2147/ijn.s382115] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 11/12/2022] [Indexed: 12/24/2022] Open
Abstract
Bone defects that are congenital or the result of infection, malignancy, or trauma represent a challenge to the global healthcare system. To address this issue, multiple research groups have been developing novel cell sheet technology (CST)-based approaches to promote bone regeneration. These methods hold promise for use in regenerative medicine because they preserve cell-cell contacts, cell-extracellular matrix interactions, and the protein makeup of cell membranes. This review introduces the concept and preparation system of the cell sheet (CS), explores the application of CST in bone regeneration, highlights the current states of the bone regeneration via CST, and offers perspectives on the challenges and future research direction of translating current knowledge from the lab to the clinic.
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Affiliation(s)
- Qi You
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China,Sichuan Model Worker and Craftsman Talent Innovation Research Studio, Chengdu, Sichuan Province, People’s Republic of China
| | - Minxun Lu
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China,Sichuan Model Worker and Craftsman Talent Innovation Research Studio, Chengdu, Sichuan Province, People’s Republic of China
| | - Zhuangzhuang Li
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China,Sichuan Model Worker and Craftsman Talent Innovation Research Studio, Chengdu, Sichuan Province, People’s Republic of China
| | - Yong Zhou
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China,Sichuan Model Worker and Craftsman Talent Innovation Research Studio, Chengdu, Sichuan Province, People’s Republic of China
| | - Chongqi Tu
- Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, People’s Republic of China,Sichuan Model Worker and Craftsman Talent Innovation Research Studio, Chengdu, Sichuan Province, People’s Republic of China,Correspondence: Chongqi Tu; Yong Zhou, Department of Orthopedics, West China Hospital, Sichuan University, No. 37, Guoxuexiang, Chengdu, 610041, Sichuan Province, People’s Republic of China, Email ;
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5
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Shaikh MS, Shahzad Z, Tash EA, Janjua OS, Khan MI, Zafar MS. Human Umbilical Cord Mesenchymal Stem Cells: Current Literature and Role in Periodontal Regeneration. Cells 2022; 11:cells11071168. [PMID: 35406732 PMCID: PMC8997495 DOI: 10.3390/cells11071168] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/27/2022] [Accepted: 03/29/2022] [Indexed: 12/21/2022] Open
Abstract
Periodontal disease can cause irreversible damage to tooth-supporting tissues such as the root cementum, periodontal ligament, and alveolar bone, eventually leading to tooth loss. While standard periodontal treatments are usually helpful in reducing disease progression, they cannot repair or replace lost periodontal tissue. Periodontal regeneration has been demonstrated to be beneficial in treating intraosseous and furcation defects to varied degrees. Cell-based treatment for periodontal regeneration will become more efficient and predictable as tissue engineering and progenitor cell biology advance, surpassing the limitations of present therapeutic techniques. Stem cells are undifferentiated cells with the ability to self-renew and differentiate into several cell types when stimulated. Mesenchymal stem cells (MSCs) have been tested for periodontal regeneration in vitro and in humans, with promising results. Human umbilical cord mesenchymal stem cells (UC-MSCs) possess a great regenerative and therapeutic potential. Their added benefits comprise ease of collection, endless source of stem cells, less immunorejection, and affordability. Further, their collection does not include the concerns associated with human embryonic stem cells. The purpose of this review is to address the most recent findings about periodontal regenerative mechanisms, different stem cells accessible for periodontal regeneration, and UC-MSCs and their involvement in periodontal regeneration.
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Affiliation(s)
- Muhammad Saad Shaikh
- Department of Oral Biology, Sindh Institute of Oral Health Sciences, Jinnah Sindh Medical University, Karachi 75510, Pakistan;
| | - Zara Shahzad
- Lahore Medical and Dental College, University of Health Sciences, Lahore 53400, Pakistan;
| | - Esraa Abdulgader Tash
- Department of Oral and Clinical Basic Science, College of Dentistry, Taibah University, Al Madinah Al Munawarah 41311, Saudi Arabia;
| | - Omer Sefvan Janjua
- Department of Maxillofacial Surgery, PMC Dental Institute, Faisalabad Medical University, Faisalabad 38000, Pakistan;
| | | | - Muhammad Sohail Zafar
- Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah Al Munawarah 41311, Saudi Arabia
- Department of Dental Materials, Islamic International Dental College, Riphah International University, Islamabad 44000, Pakistan
- Correspondence: ; Tel.: +966-507544691
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Zakhireh S, Barar J, Adibkia K, Beygi-Khosrowshahi Y, Fathi M, Omidain H, Omidi Y. Bioactive Chitosan-Based Organometallic Scaffolds for Tissue Engineering and Regeneration. Top Curr Chem (Cham) 2022; 380:13. [PMID: 35149879 DOI: 10.1007/s41061-022-00364-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 01/04/2022] [Indexed: 12/14/2022]
Abstract
Captivating achievements in developing advanced hybrid biostructures through integrating natural biopolymers with inorganic materials (e.g., metals and metalloids) have paved the way towards the application of bioactive organometallic scaffolds (OMSs) in tissue engineering and regenerative medicine (TERM). Of various biopolymers, chitosan (CS) has been used widely for the development of bioactive OMSs, in large part due to its unique characteristics (e.g., biocompatibility, biodegradability, surface chemistry, and functionalization potential). In integration with inorganic elements, CS has been used to engineer advanced biomimetic matrices to accommodate both embedded cells and drug molecules and serve as scaffolds in TERM. The use of the CS-based OMSs is envisioned to provide a new pragmatic potential in TERM and even in precision medicine. In this review, we aim to elaborate on recent achievements in a variety of CS/metal, CS/metalloid hybrid scaffolds, and discuss their applications in TERM. We also provide comprehensive insights into the formulation, surface modification, characterization, biocompatibility, and cytotoxicity of different types of CS-based OMSs.
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Affiliation(s)
- Solmaz Zakhireh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jaleh Barar
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khosro Adibkia
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Younes Beygi-Khosrowshahi
- Chemical Engineering Department, Faculty of Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Marziyeh Fathi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Omidain
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, 33328, USA
| | - Yadollah Omidi
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, 33328, USA.
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7
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Li G, Shen W, Tang X, Mo G, Yao L, Wang J. Combined use of calcium phosphate cement, mesenchymal stem cells and platelet-rich plasma for bone regeneration in critical-size defect of the femoral condyle in mini-pigs. Regen Med 2021; 16:451-464. [PMID: 34030462 DOI: 10.2217/rme-2020-0099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To investigate the outcome of autologous bone marrow mesenchymal stem cells (BMMSCs) and platelet-rich plasma in combination with calcium phosphate cement (CPC) scaffold to reconstruct femoral critical bone defects in mini-pigs. Materials & methods: Scanning electron microscopy, micro-computed tomography evaluation and quantitative histological assessment were used. Results & conclusion: BMMSCs were attached to the CPC scaffold after 7 days of culture and decreased the residual CPC material in each group at 12 weeks compared with 6 weeks. The newly formed bone area was higher in the CPC+SC+P group than in the CPC group at each time point (all p < 0.05). The strategy of CPC combined with BMMSCs and platelet-rich plasma might be an effective method to repair bone defects.
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Affiliation(s)
- Guangjun Li
- Department of Orthopedic, Deqing People's Hospital, Deqing, Zhejiang 313200, PR China
| | - Wen Shen
- Department of Radiology, Deqing People's Hospital, Deqing, Zhejiang 313200, PR China
| | - Xing Tang
- Department of Orthopedic, Deqing People's Hospital, Deqing, Zhejiang 313200, PR China
| | - Guowei Mo
- Department of Orthopedic, Deqing People's Hospital, Deqing, Zhejiang 313200, PR China
| | - Liqin Yao
- Department of Orthopedic, Deqing People's Hospital, Deqing, Zhejiang 313200, PR China
| | - Jixing Wang
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, PR China
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8
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Zhao L, Luo Y, Wang Y, Zhao F, Chen X, Cai D. Three-Dimensional Printed BGS Treat a Large Bone Defect in a Rabbit Model. DOKL BIOCHEM BIOPHYS 2021; 497:123-129. [PMID: 33895928 DOI: 10.1134/s1607672921020174] [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: 10/10/2020] [Revised: 01/02/2021] [Accepted: 01/03/2021] [Indexed: 11/23/2022]
Abstract
This study aimed to evaluate if the 3D printed bioactive glass porous scaffolds (BGS) can improve the reconstruction of the large bone defect. A rabbit model of large bone defects was established by making a 1.0 or 1.5 cm segmental defect in the middle of the femur bone. Then a 1.0 or 1.5 cm BGS was implanted into the bone defect. X-ray imaging showed that in both 1.0 and 1.5 cm groups, the newly formed bone tissue could be observed at 4 weeks after implantation, but a strengthened ossification trend could be observed at different time points. In the 1.0 cm group, a larger number of newly formed bone tissues were observed at 4 weeks, and in the 1.5 group, more newly formed bone tissues were found at 8 weeks. Nevertheless, ossified tissue generation on the BGS mainly completed at 12 weeks after implantation in both groups. The H&E staining revealed that the 3D BGS was easily degraded to form osteoid-like material in vivo, where the neo-ossification gradually occurred from the edge to the center. Immunohistochemical analysis showed that in the 1.0 group, protein expressions of three osteogenesis-related genes- BMP, collagen I and RUNX-2-all peaked at 8 weeks, and then gradually decreased at 12 and 18 weeks. In the 1.5 group, BMP and collagen I peaked at 18 weeks.
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Affiliation(s)
- Liang Zhao
- Department of Orthopedic Surgery, the Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Yuming Luo
- Department of Orthopedic Surgery, Guangzhou Liwan Orthopedics Hospital, Guangzhou, China
| | - Yijun Wang
- Department of Orthopedic Surgery, the Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Fujian Zhao
- Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiaofeng Chen
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou, China.,National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou, China
| | - Daozhang Cai
- Department of Orthopedic Surgery, the Third Affiliated Hospital, Southern Medical University, Guangzhou, China.
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9
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Yuan Z, Bi J, Wang W, Sun X, Wang L, Mao J, Yang F. Synthesis and properties of Sr 2+ doping α-tricalcium phosphate at low temperature. J Appl Biomater Funct Mater 2021; 19:2280800021996999. [PMID: 33653180 DOI: 10.1177/2280800021996999] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Strontium has been widely used in bone repair materials due to its roles in promoting osteoclast apoptosis and enhancing osteoblast proliferation. In this work, synthesis and the effects of Sr2+ doping α-tricalcium phosphate at low-temperature was studied. The setting time and the mechanical properties of α-tricalcium phosphate were controlled by varying the content of Sr2+. The synthesized compounds were evaluated by XRD, SEM, XPS, setting time, compressive strength, SBF immersion, and colorimetric CCK-8 assay. The results showed that Sr2+ can improve the compressive strength and cell activity of calcium phosphate bone cement.
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Affiliation(s)
- Zhen Yuan
- Key Laboratory of Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China.,Shandong Provincial Key Laboratory of Engineering Ceramics, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China
| | - Jianqiang Bi
- Key Laboratory of Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China.,Shandong Provincial Key Laboratory of Engineering Ceramics, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China
| | - Weili Wang
- Key Laboratory of Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China.,Shandong Provincial Key Laboratory of Engineering Ceramics, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China
| | - Xiaoning Sun
- Key Laboratory of Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China.,Shandong Provincial Key Laboratory of Engineering Ceramics, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China
| | - Lu Wang
- Key Laboratory of Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China.,Shandong Provincial Key Laboratory of Engineering Ceramics, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China
| | - Junjie Mao
- Key Laboratory of Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China.,Shandong Provincial Key Laboratory of Engineering Ceramics, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China
| | - Fushuai Yang
- Key Laboratory of Liquid-Solid Structure Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China.,Shandong Provincial Key Laboratory of Engineering Ceramics, School of Materials Science and Engineering, Shandong University, Jinan, P. R. China
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10
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Kirillova A, Nillissen O, Liu S, Kelly C, Gall K. Reinforcement and Fatigue of a Bioinspired Mineral-Organic Bioresorbable Bone Adhesive. Adv Healthc Mater 2021; 10:e2001058. [PMID: 33111508 DOI: 10.1002/adhm.202001058] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/25/2020] [Indexed: 12/21/2022]
Abstract
Bioresorbable bone adhesives may provide remarkable clinical solutions in areas ranging from fixation and osseointegration of permanent implants to the direct healing and fusion of bones without permanent fixation hardware. Mechanical properties of bone adhesives are critical for their successful application in vivo. Reinforcement of a tetracalcium phosphate-phosphoserine bone adhesive is investigated using three degradable reinforcement strategies: poly(lactic-co-glycolic) (PLGA) fibers, PLGA sutures, and chitosan lactate. All three approaches lead to higher compressive strengths of the material and better fatigue performance. Reinforcement with PLGA fibers and chitosan lactate results in a 100% probability of survival of samples at 20 MPa maximum compressive stress level, which is almost ten times higher compared to compressive loads observed in the intervertebral discs of the spine in vivo. High adhesive shear strength of 5.1 MPa is achieved for fiber-reinforced bone adhesive by tuning the surface architecture of titanium samples. Finally, biological and biomechanical performance of the fiber-reinforced adhesive is evaluated in a rabbit distal femur osteotomy model, showing the potential of the bone adhesive for clinical use.
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Affiliation(s)
- Alina Kirillova
- Department of Mechanical Engineering and Materials Science Pratt School of Engineering Duke University Durham NC 27708 USA
| | - Olivia Nillissen
- Department of Biomedical Engineering Pratt School of Engineering Duke University Durham NC 27708 USA
| | - Samuel Liu
- Department of Mechanical Engineering and Materials Science Pratt School of Engineering Duke University Durham NC 27708 USA
| | - Cambre Kelly
- Department of Biomedical Engineering Pratt School of Engineering Duke University Durham NC 27708 USA
| | - Ken Gall
- Department of Mechanical Engineering and Materials Science Pratt School of Engineering Duke University Durham NC 27708 USA
- Department of Biomedical Engineering Pratt School of Engineering Duke University Durham NC 27708 USA
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11
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Wu S, Lei L, Bao C, Liu J, Weir MD, Ren K, Schneider A, Oates TW, Liu J, Xu HHK. An injectable and antibacterial calcium phosphate scaffold inhibiting Staphylococcus aureus and supporting stem cells for bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 120:111688. [PMID: 33545850 DOI: 10.1016/j.msec.2020.111688] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 02/08/2023]
Abstract
Staphylococcus aureus (S. aureus) is the major pathogen for osteomyelitis, which can lead to bone necrosis and destruction. There has been no report on antibacterial calcium phosphate cement (CPC) against S. aureus. The aims of this study were to: (1) develop novel antibacterial CPC-chitosan-alginate microbead scaffold; (2) investigate mechanical and antibacterial properties of CPC-chitosan-penicillin-alginate scaffold; (3) evaluate the encapsulation and delivery of human umbilical cord mesenchymal stem cells (hUCMSCs). Flexural strength, elastic modulus and work-of-fracture of the CPC-chitosan-penicillin-alginate microbeads scaffold and CPC-chitosan scaffold were evaluated. Penicillin release profile and antibacterial effects on S. aureus were determined. The hUCMSC delivery and release from penicillin-alginate microbeads were investigated. Injectable CPC-chitosan-penicillin-alginate microbeads scaffold was developed for the first time. CPC-chitosan-penicillin-alginate microbeads scaffold had a flexural strength of 3.16 ± 0.55 MPa, matching that of cancellous bone. With sustained penicillin release, the new scaffold had strong antibacterial effects on S. aureus, with an inhibition zone diameter of 32.2 ± 2.5 mm, greater than that of penicillin disk control (15.1 ± 2.0 mm) (p < 0.05). Furthermore, this injectable and antibacterial scaffold had no toxic effects, yielding excellent hUCMSC viability, which was similar to that of CPC control without antibacterial activity (p > 0.05). CPC-chitosan-penicillin-microbeads scaffold had injectability, good strength, strong antibacterial effects, and good biocompatibility to support stem cell viability for osteogenesis. CPC-chitosan-penicillin-microbeads scaffold is promising for dental, craniofacial and orthopedic applications to combat infections and promote bone regeneration.
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Affiliation(s)
- Shizhou Wu
- Department of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Biomaterials & Tissue Engineering Division, Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD 21201, USA
| | - Lei Lei
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Chongyun Bao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jin Liu
- Biomaterials & Tissue Engineering Division, Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD 21201, USA; Key Laboratory of Shannxi for Craniofacial Precision Medicine Research, Clinical Research Center of Shannxi for Dental and Maxillofacial Diseases, College of Stomatology, Xi'an Jiaotong University, Shannxi 710004, China
| | - Michael D Weir
- Biomaterials & Tissue Engineering Division, Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD 21201, USA
| | - Ke Ren
- Department of Neural and Pain Sciences, School of Dentistry, Program in Neuroscience, University of Maryland, Baltimore, MD 21201, USA
| | - Abraham Schneider
- Department of Oncology and Diagnostic Sciences, University of Maryland School of Dentistry, Baltimore, USA; Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Thomas W Oates
- Biomaterials & Tissue Engineering Division, Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD 21201, USA
| | - Jun Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Hockin H K Xu
- Biomaterials & Tissue Engineering Division, Department of Advanced Oral Sciences and Therapeutics, University of Maryland Dental School, Baltimore, MD 21201, USA; Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Center for Stem Cell Biology and Regenerative Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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Shang F, Yu Y, Liu S, Ming L, Zhang Y, Zhou Z, Zhao J, Jin Y. Advancing application of mesenchymal stem cell-based bone tissue regeneration. Bioact Mater 2020; 6:666-683. [PMID: 33005830 PMCID: PMC7509590 DOI: 10.1016/j.bioactmat.2020.08.014] [Citation(s) in RCA: 134] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 08/07/2020] [Accepted: 08/15/2020] [Indexed: 12/11/2022] Open
Abstract
Reconstruction of bone defects, especially the critical-sized defects, with mechanical integrity to the skeleton is important for a patient's rehabilitation, however, it still remains challenge. Utilizing biomaterials of human origin bone tissue for therapeutic purposes has provided a facilitated approach that closely mimics the critical aspects of natural bone tissue with regard to its properties. However, not only efficacious and safe but also cost-effective and convenient are important for regenerative biomaterials to achieve clinical translation and commercial success. Advances in our understanding of regenerative biomaterials and their roles in new bone formation potentially opened a new frontier in the fast-growing field of regenerative medicine. Taking inspiration from the role and multicomponent construction of native extracellular matrix (ECM) for cell accommodation, the ECM-mimicking biomaterials and the naturally decellularized ECM scaffolds were used to create new tissues for bone restoration. On the other hand, with the going deep in understanding of mesenchymal stem cells (MSCs), they have shown great promise to jumpstart and facilitate bone healing even in diseased microenvironments with pharmacology-based endogenous MSCs rescue/mobilization, systemic/local infusion of MSCs for cytotherapy, biomaterials-based approaches, cell-sheets/-aggregates technology and usage of subcellular vesicles of MSCs to achieve scaffolds-free or cell-free delivery system, all of them have been shown can improve MSCs-mediated regeneration in preclinical studies and several clinical trials. Here, following an overview discussed autogenous/allogenic and ECM-based bone biomaterials for reconstructive surgery and applications of MSCs-mediated bone healing and tissue engineering to further offer principles and effective strategies to optimize MSCs-based bone regeneration. Focusing on MSCs based bone regeneration. Discussed cytotherapy, cell-free therapies and cell-aggregates technology in detail. Stating the approaches of MSCs in diseased microenvironments.
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Affiliation(s)
- Fengqing Shang
- State Key Laboratory of Military Stomatology & National Clinical Research, Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Center for Tissue Engineering, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- Department of Stomatology, The 306th Hospital of PLA, Beijing, 100101, China
| | - Yang Yu
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, 250012, China
| | - Shiyu Liu
- State Key Laboratory of Military Stomatology & National Clinical Research, Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Center for Tissue Engineering, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Leiguo Ming
- State Key Laboratory of Military Stomatology & National Clinical Research, Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Center for Tissue Engineering, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yongjie Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research, Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Center for Tissue Engineering, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Zhifei Zhou
- Department of Stomatology, General Hospital of Tibetan Military Command, Lhasa, 850000, China
| | - Jiayu Zhao
- Bureau of Service for Veteran Cadres of PLA in Beijing, Beijing, 100001, China
| | - Yan Jin
- State Key Laboratory of Military Stomatology & National Clinical Research, Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Center for Tissue Engineering, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- Corresponding author.
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Porgham Daryasari M, Dusti Telgerd M, Hossein Karami M, Zandi-Karimi A, Akbarijavar H, Khoobi M, Seyedjafari E, Birhanu G, Khosravian P, SadatMahdavi F. Poly-l-lactic acid scaffold incorporated chitosan-coated mesoporous silica nanoparticles as pH-sensitive composite for enhanced osteogenic differentiation of human adipose tissue stem cells by dexamethasone delivery. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2020; 47:4020-4029. [PMID: 31595797 DOI: 10.1080/21691401.2019.1658594] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Nowadays, the development of drug-loaded electrospun organic-inorganic composite scaffolds for tissue engineering application is an attractive approach. In this study, a composite scaffold of Poly-l-lactic acid (PLLA) incorporated dexamethasone (Dexa) loaded Mesoporous Silica Nanoparticles (MSN) coated with Chitosan (CS) were fabricated by electrospinning for bone tissue engineering application. The MSN was prepared by precipitation method. After that, Dexamethasone (Dexa) was loaded into MSNs (MSN-Dexa). In the following, CS was coated over the prepared nanoparticles to form MSN-Dexa@CS and then, were mixed to PLLA solution to form MSN-Dexa@CS/PLLA composite for electrospinning. The surface morphology, hydrophilicity, tensile strength and the bioactivity of the scaffolds were characterized. The osteogenic proliferation and differentiation potential were evaluated by MTT assay and by measuring the basic osteogenic markers: the activity of the enzyme alkaline phosphatase and the level of calcium deposition. The composite scaffolds prepared here have conductive surface property and have a better osteogenic potential than pure PLLA scaffolds. Hence, the controlled release of nanoparticle containing Dexa from composite scaffold supported the osteogenesis and made the composite scaffolds ideal candidates for bone tissue engineering application and pH-sensitive delivery of drugs at the site of implantation in tissue regeneration.
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Affiliation(s)
- Mohammad Porgham Daryasari
- Department of Pharmaceutical Biomaterials, Faculty of Pharmacy, Tehran University of Medical Sciences , Tehran , Iran.,Biomaterials Group, the Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences , Tehran , Iran
| | - Mehdi Dusti Telgerd
- Department of Pharmaceutical Biomaterials, Faculty of Pharmacy, Tehran University of Medical Sciences , Tehran , Iran
| | | | - Ali Zandi-Karimi
- Department of Biotechnology, College of Science, University of Tehran , Tehran , Iran
| | - Hamid Akbarijavar
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences , Tehran , Iran
| | - Mehdi Khoobi
- Biomaterials Group, the Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences , Tehran , Iran.,Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center (MBRC), Faculty of Pharmacy, Tehran University of Medical Sciences , Tehran , Iran
| | - Ehsan Seyedjafari
- Department of Biotechnology, College of Science, University of Tehran , Tehran , Iran
| | - Gebremariam Birhanu
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, International campus (TUMS-IC) , Tehran , Iran.,School of Pharmacy, College of Health Sciences, Addis Ababa University , Addis Ababa , Ethiopia
| | - Pegah Khosravian
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences , Shahrekord , Iran
| | - Fatemeh SadatMahdavi
- Department of Animal and Poultry Science, College of Aburaihan, University of Tehran , Pakdasht, Tehran , Iran
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Sumathra M, Rajan M. Pulsed Electrodeposition of HAP/CPG-BSA/CUR Nanocomposite on Titanium Metal for Potential Bone Regeneration. ACS APPLIED BIO MATERIALS 2019; 2:4756-4768. [DOI: 10.1021/acsabm.9b00494] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Murugan Sumathra
- Biomaterials in Medicinal Chemistry Laboratory, Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India
| | - Mariappan Rajan
- Biomaterials in Medicinal Chemistry Laboratory, Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India
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Kucko NW, de Lacerda Schickert S, Sobral Marques T, Herber RP, van den Beuken JJJP, Zuo Y, Leeuwenburgh SCG. Tough and Osteocompatible Calcium Phosphate Cements Reinforced with Poly(vinyl alcohol) Fibers. ACS Biomater Sci Eng 2019; 5:2491-2505. [DOI: 10.1021/acsbiomaterials.9b00226] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nathan W. Kucko
- Department of Regenerative Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25 6525 EX, Nijmegen, The Netherlands
- CAM Bioceramics B.V., Zernikedreef 6 2333 CL, Leiden, The Netherlands
| | - Sónia de Lacerda Schickert
- Department of Regenerative Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25 6525 EX, Nijmegen, The Netherlands
| | - Tomás Sobral Marques
- Department of Regenerative Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25 6525 EX, Nijmegen, The Netherlands
| | - Ralf-Peter Herber
- CAM Bioceramics B.V., Zernikedreef 6 2333 CL, Leiden, The Netherlands
| | - Jeroen J. J. P. van den Beuken
- Department of Regenerative Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25 6525 EX, Nijmegen, The Netherlands
| | - Yi Zuo
- Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University 610064 Chengdu, China
| | - Sander C. G. Leeuwenburgh
- Department of Regenerative Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25 6525 EX, Nijmegen, The Netherlands
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Ramification of zinc oxide doped hydroxyapatite biocomposites for the mineralization of osteoblasts. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 96:337-346. [DOI: 10.1016/j.msec.2018.11.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 08/16/2018] [Accepted: 11/23/2018] [Indexed: 11/20/2022]
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Kang M, Huang J, Zhang L, Wang X, Guo H, He R. [Mechanical properties and effect on osteodifferentiation of induced pluripotent stem cells of chitosan/whisker/calcium phosphate cement composite biomaterial]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2019; 32:959-967. [PMID: 30129324 DOI: 10.7507/1002-1892.201710028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Objective To investigate the mechanical properties of the novel compound calcium phosphate cement (CPC) biological material as well as the biological activity and osteogenesis effects of induced pluripotent stem cells (iPS) seeding on scaffold and compare their bone regeneration efficacy in cranial defects in rats. Methods Ac- cording to the different scaffold materials, the experiment was divided into 4 groups: pure CPC scaffold group (group A), CPC∶10% wt chitosan as 2∶1 ratio mixed scaffold group (group B), CPC∶10% wt chitosan∶whisker as 2∶1∶1 ratio mixed scaffold group (group C), and CPC∶10% wt chitosan∶whisker as 2∶1∶2 ratio mixed scaffold group (group D). Mechanical properties (bending strength, work-of-fracture, hardness, and modulus of elasticity) of each scaffold were detected. The scaffolds were cultured with fifth generation iPS-mesenchymal stem cells (MSCs), and the absorbance ( A) values of each group were detected at 1, 3, 7, and 14 days by cell counting kit 8 (CCK-8) method; the alkaline phosphatase (ALP) activity, Live/Dead fluorescence staining and quantitative detection, ALP, Runx2, collagen typeⅠ, osteocalcin (OC), and bone morphogenetic protein 2 (BMP-2) gene expressions by RT-PCR were detected at 1, 7, and 14 days; and the alizarin red staining were detected at 1, 7, 14, and 21 days. Twenty-four 3-month-old male Sprague Dawley rats were used to establish the 8 mm-long skull bone defect model, and were randomly divided into 4 groups ( n=6); 4 kinds of scaffold materials were implanted respectively. After 8 weeks, HE staining was used to observe the repair of bone defects and to detect the percentage of new bone volume and the density of neovascularization. Results The bending strength, work-of-fracture, hardness, and modulus of elasticity in groups B, C, and D were significantly higher than those in group A, and in groups C, D than in group B, and in group D than in group C ( P<0.05). CCK-8 assay showed that cell activity gradually increased with the increase of culture time, the A values in groups B, C, and D at 3, 7, 14 days were signifiantly higher than those in group A, and in groups C, D than in group B ( P<0.05), but no significant difference was found between groups C and D ( P>0.05). Live/Dead fluorescence staining showed that the proportion of living cells in groups B, C, and D at 7 and 14 days was significantly higher than that in group A ( P<0.05), and in groups C, D at 7 days than in group B ( P<0.05); but no significant difference was found between groups C and D ( P>0.05). RT-PCR showed that the relative expressions of genes in groups B, C, and D at 7 and 14 days were significantly higher than those in group A, and in groups C, D than in group B ( P<0.05); but no significant difference was found between groups C and D ( P>0.05). Alizarin red staining showed that the red calcium deposition on the surface of scaffolds gradually deepened and thickened with the prolongation of culture time; the A values in groups B, C, and D at 14 and 21 days were significantly higher than those in group A ( P<0.05), and in groups C and D than in group B ( P<0.05), but no significant difference was found between groups C and D ( P>0.05). In vivo repair experiments in animals showed that the new bone in each group was mainly filled with the space of scaffold material. Osteoblasts and neovascularization were surrounded by new bone tissue in the matrix, and osteoblasts were arranged on the new bone boundary. The new bone in groups B, C, and D increased significantly when compared with group A, and the new bone in groups C and D was significantly higher than that in group B. The percentage of new bone volume and the density of neovascularization in groups B, C, and D were significantly higher than those in group A, and in groups C and D than in group B ( P<0.05); but no significant difference was found between groups C and D ( P>0.05). Conclusion The mechanical properties of the new reinforced composite scaffold made from composite chitosan, whisker, and CPC are obviously better than that of pure CPC scaffold material, which can meet the mechanical properties of cortical bone and cancellous bone. iPS-MSCs is attaching and proliferating on the new reinforced composite scaffold material, and the repair effect of bone tissue is good. It can meet the biological and osteogenic activity requirements of the implant materials in the bone defect repair.
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Affiliation(s)
- Ming Kang
- Department of Joint Surgery, Huizhou Central People's Hospital, Huizhou Guangdong, 516001, P.R.China
| | - Jiehua Huang
- Department of Joint Surgery, Huizhou Central People's Hospital, Huizhou Guangdong, 516001, P.R.China
| | - Lixuan Zhang
- Department of Joint Surgery, Huizhou Central People's Hospital, Huizhou Guangdong, 516001, P.R.China
| | - Xinguang Wang
- Department of Joint Surgery, Huizhou Central People's Hospital, Huizhou Guangdong, 516001, P.R.China
| | - Hanming Guo
- Department of Joint Surgery, Huizhou Central People's Hospital, Huizhou Guangdong, 516001, P.R.China
| | - Ruixuan He
- Department of Joint Surgery, Huizhou Central People's Hospital, Huizhou Guangdong, 516001,
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Liu T, Li J, Shao Z, Ma K, Zhang Z, Wang B, Zhang Y. Encapsulation of mesenchymal stem cells in chitosan/β-glycerophosphate hydrogel for seeding on a novel calcium phosphate cement scaffold. Med Eng Phys 2018; 56:9-15. [PMID: 29576458 DOI: 10.1016/j.medengphy.2018.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/04/2018] [Accepted: 03/13/2018] [Indexed: 01/09/2023]
Abstract
Due to its moldability, biocompatibility, osteoconductivity and resorbability, calcium phosphate cement (CPC) is a highly promising scaffold material for orthopedic applications. However, pH changes and ionic activity during the CPC setting reaction may adversely affect cells seeded directly on CPC. Moreover, a lack of macropores in CPC limits ingrowth of new bone. The objectives of this study were to prepare macroporous CPC scaffolds via porogen leaching, using mannitol crystals as the porogen and to evaluate the in vitro proliferation and osteogenic differentiation of mesenchymal stem cells (MSCs) encapsulated in chitosan/β-glycerophosphate (C/GP) hydrogel prior to exposure to the novel CPC scaffold. MSCs were found to be adhered to the surfaces of CPC macropores via scanning electron microscopy. The viability and osteogenic differentiation of MSCs in C/GP hydrogel with or without exposure to CPC constructs containing mannitol crystals indicated that coating with C/GP hydrogel protected the cells during cement mixing and setting. In conclusion, novel, macroporous CPC scaffolds were prepared, and our data indicate that a hydrogel encapsulation-based strategy can be used to protect cells during scaffold formation. Thus, the MSC-laden CPC scaffolds show promise for the delivery of stem cells to promote bone regeneration.
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Affiliation(s)
- Tao Liu
- The 457th Hospital of PLA, Wuhan, 430012, Hubei, China
| | - Jian Li
- The 457th Hospital of PLA, Wuhan, 430012, Hubei, China
| | - Zengwu Shao
- Institute of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China.
| | - Kaige Ma
- Institute of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
| | - Zhicai Zhang
- Institute of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
| | - Baichuan Wang
- Institute of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
| | - Yannan Zhang
- Institute of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
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Ajaxon I, Holmberg A, Öhman-Mägi C, Persson C. Fatigue performance of a high-strength, degradable calcium phosphate bone cement. J Mech Behav Biomed Mater 2018; 79:46-52. [DOI: 10.1016/j.jmbbm.2017.12.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/30/2017] [Accepted: 12/04/2017] [Indexed: 01/18/2023]
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Deen GR, Loh XJ. Stimuli-Responsive Cationic Hydrogels in Drug Delivery Applications. Gels 2018; 4:E13. [PMID: 30674789 PMCID: PMC6318685 DOI: 10.3390/gels4010013] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 12/11/2022] Open
Abstract
Stimuli-responsive, smart, intelligent, or environmentally sensitive polymers respond to changes in external stimuli such as pH, temperature, ionic strength, surfactants, pressure, light, biomolecules, and magnetic field. These materials are developed in various network architectures such as block copolymers, crosslinked hydrogels, nanogels, inter-penetrating networks, and dendrimers. Stimuli-responsive cationic polymers and hydrogels are an interesting class of "smart" materials that respond reversibly to changes in external pH. These materials have the ability to swell extensively in solutions of acidic pH and de-swell or shrink in solutions of alkaline pH. This reversible swelling-shrinking property brought about by changes in external pH conditions makes these materials useful in a wide range of applications such as drug delivery systems and chemical sensors. This article focuses mainly on the properties of these interesting materials and their applications in drug delivery systems.
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Affiliation(s)
- G Roshan Deen
- Soft Materials Laboratory, Natural Sciences and Science Education AG, National Institute of Education, Nanyang Technological University, 1-Nanyang Walk, Singapore 637616, Singapore.
| | - Xian Jun Loh
- Institute of Materials Research and Engineering, 2-Fusionopolis Way, Singapore 138634, Singapore.
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Shang F, Liu S, Ming L, Tian R, Jin F, Ding Y, Zhang Y, Zhang H, Deng Z, Jin Y. Human Umbilical Cord MSCs as New Cell Sources for Promoting Periodontal Regeneration in Inflammatory Periodontal Defect. Am J Cancer Res 2017; 7:4370-4382. [PMID: 29158833 PMCID: PMC5695137 DOI: 10.7150/thno.19888] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 08/18/2017] [Indexed: 01/09/2023] Open
Abstract
Human periodontal ligament stem cells (hPDLSCs) transplantation represents a promising approach for periodontal regeneration; however, the cell source is limited due to the invasive procedure required for cell isolation. As human umbilical cord mesenchymal stem cells (hUCMSCs) can be harvested inexpensively and inexhaustibly, here we evaluated the regenerative potentials of hUCMSCs as compared with hPDLSCs to determine whether hUCMSCs could be used as new cell sources for periodontal regeneration. Methods The characteristics of hUCMSCs, including multi-differentiation ability and anti-inflammatory capability, were determined by comparison with hPDLSCs. We constructed cell aggregates (CA) using hUCMSCs and hPDLSCs respectively. Then hPDLSCs-CA and hUCMSCs-CA were combined with β-tricalcium phosphate bioceramic (β-TCP) respectively and their regenerative potentials were determined in a rat inflammatory periodontal defect model. Results hPDLSCs showed higher osteogenic differentiation potentials than hUCMSCs. Meanwhile, hUCMSCs showed higher extracellular matrix secretion and anti-inflammatory abilities than hPDLSCs. Similar to hPDLSCs, hUCMSCs were able to contribute to regeneration of both soft and hard periodontal tissues under inflammatory periodontitis condition. There were more newly formed bone and periodontal ligaments in hPDLSCs and hUCMSCs groups than in non-cell treated group. Moreover, no significant differences of regenerative promoting effects between hPDLSCs and hUCMSCs were found. Conclusion: hUCMSCs generated similar promoting effects on periodontal regeneration compared with hPDLSCs, and can be used as new cell sources for periodontal regeneration.
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Liang T, Gao CX, Yang L, Saijilafu, Yang HL, Luo ZP. Deterioration of the mechanical properties of calcium phosphate cements with Poly (γ-glutamic acid) and its strontium salt after in vitro degradation. J Mech Behav Biomed Mater 2017; 75:190-196. [PMID: 28750300 DOI: 10.1016/j.jmbbm.2017.07.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 07/16/2017] [Accepted: 07/19/2017] [Indexed: 10/19/2022]
Abstract
The mechanical reliability of calcium phosphate cements has restricted their clinical application in load-bearing locations. Although their mechanical strength can be improved using a variety of strategies, their fatigue properties are still unclear, especially after degradation. The evolutions of uniaxial compressive properties and the fatigue behavior of calcium phosphate cements incorporating poly (γ-glutamic acid) and its strontium salt after different in vitro degradation times were investigated in the present study. Compressive strength decreased from the 61.2±5.4MPa of the original specimen, to 51.1±4.4, 42.2±3.8, 36.8±2.4 and 28.9±3.2MPa following degradation for one, two, three and four weeks, respectively. Fatigue life under same loading condition also decreased with increasing degradation time. The original specimens remained intact for one million cycles (run-out) under a maximum stress of 30MPa. After degradation for one to four weeks, the specimens were able to withstand maximum stress of 20, 15, 10 and 10MPa, respectively until run-out. Defect volume fraction within the specimens increased from 0.19±0.021% of the original specimen to 0.60±0.19%, 1.09±0.04%, 2.68±0.64% and 7.18±0.34% at degradation time of one, two, three and four weeks, respectively. Therefore, we can infer that the primary cause of the deterioration of the mechanical properties was an increasing in micro defects induced by degradation, which promoted crack initiation and propagation, accelerating the final mechanical failure of the bone cement. This study provided the data required for enhancing the mechanical reliability of the calcium phosphate cements after different degradation times, which will be significant for the modification of load-bearing biodegradable bone cements to match clinical application.
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Affiliation(s)
- Ting Liang
- Orthopaedic Institute, Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Chun-Xia Gao
- Orthopaedic Institute, Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Lei Yang
- Orthopaedic Institute, Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Saijilafu
- Orthopaedic Institute, Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Hui-Lin Yang
- Orthopaedic Institute, Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| | - Zong-Ping Luo
- Orthopaedic Institute, Department of Orthopaedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China.
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Akmammedov R, Huysal M, Isik S, Senel M. Preparation and characterization of novel chitosan/zeolite scaffolds for bone tissue engineering applications. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1309539] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Rovshen Akmammedov
- Faculty of Engineering, Department of Bioengineering, Engineering-Technological University of Turkmenistan named after Oguz han, Ashkabat, Turkmenistan
| | - Merve Huysal
- Biotechnology Research Lab, EMC Technology Inc., Istanbul, Turkey
| | - Sevim Isik
- Department of Medical Biology, Faculty of Medicine, Fatih University, Istanbul, Turkey
| | - Mehmet Senel
- Biotechnology Research Lab, EMC Technology Inc., Istanbul, Turkey
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Enhanced bone formation in sheep vertebral bodies after minimally invasive treatment with a novel, PLGA fiber-reinforced brushite cement. Spine J 2017; 17:709-719. [PMID: 27871820 DOI: 10.1016/j.spinee.2016.11.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 09/21/2016] [Accepted: 11/09/2016] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Injectable, brushite-forming calcium phosphate cements (CPC) show potential for bone replacement, but they exhibit low mechanical strength. This study tested a CPC reinforced with poly(l-lactide-co-glycolide) acid (PLGA) fibers in a minimally invasive, sheep lumbar vertebroplasty model. PURPOSE The study aimed to test the in vivo biocompatibility and osteogenic potential of a PLGA fiber-reinforced, brushite-forming CPC in a sheep large animal model. STUDY DESIGN/SETTING This is a prospective experimental animal study. METHODS Bone defects (diameter: 5 mm) were placed in aged, osteopenic female sheep, and left empty (L2) or injected with pure CPC (L3) or PLGA fiber-reinforced CPC (L4; fiber diameter: 25 µm; length: 1 mm; 10% [wt/wt]). Three and 9 months postoperation (n=20 each), the structural and functional CPC effects on bone regeneration were documented ex vivo by osteodensitometry, histomorphometry, micro-computed tomography (micro-CT), and biomechanical testing. RESULTS Addition of PLGA fibers enhanced CPC osteoconductivity and augmented bone formation. This was demonstrated by (1) significantly enhanced structural (bone volume/total volume, shown by micro-CT and histomorphometry; 3 or 9 months) and bone formation parameters (osteoid volume and osteoid surface; 9 months); (2) numerically enhanced bone mineral density (3 and 9 months) and biomechanical compression strength (9 months); and (3) numerically decreased bone erosion (eroded surface; 3 and 9 months). CONCLUSIONS The PLGA fiber-reinforced CPC is highly biocompatible and its PLGA fiber component enhanced bone formation. Also, PLGA fibers improve the mechanical properties of brittle CPC, with potential applicability in load-bearing areas.
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Minipig-BMSCs Combined with a Self-Setting Calcium Phosphate Paste for Bone Tissue Engineering. Mol Biotechnol 2017; 58:748-756. [PMID: 27683256 DOI: 10.1007/s12033-016-9974-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Calcium phosphate cements (CPCs) are a new generation of bone repair materials with good biocompatibility for various stem cells. The minipig is a recommended large animal model for bone engineering research. This study aimed to evaluate the feasibility of utilizing CPC scaffolds for the adhesion, proliferation, and osteogenic differentiation of minipig's bone marrow mesenchymal stem cells (pBMSCs). Passage 3 pBMSCs were seeded on the CPC scaffold and cultured with osteogenic culture medium (osteogenic group) or normal medium (control group). The density of viable cells increased in both groups, and pBMSCs firmly attached and spread well on the CPC scaffold. The alkaline phosphatase (ALP) activity in the osteogenic group had significantly increased on day 7 (D7) and peaked on D14. qRT-PCR revealed that mRNA levels of ALP and three osteogenic marker genes were significantly higher on D4, D7, and D14 in the osteogenic group. Alizarin Red S staining showed a significantly higher degree of bone mineralization from D7, D14 to D21 in the osteogenic group. These results indicated that pBMSCs can attach, proliferate well on CPC scaffold, and be successfully induced to differentiate into osteogenic cells. Our findings may be helpful for bone tissue engineering and the studies of bone regeneration.
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Ajaxon I, Öhman Mägi C, Persson C. Compressive fatigue properties of an acidic calcium phosphate cement-effect of phase composition. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:41. [PMID: 28144853 PMCID: PMC5285421 DOI: 10.1007/s10856-017-5851-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 01/10/2017] [Indexed: 06/06/2023]
Abstract
Calcium phosphate cements (CPCs) are synthetic bone grafting materials that can be used in fracture stabilization and to fill bone voids after, e.g., bone tumour excision. Currently there are several calcium phosphate-based formulations available, but their use is partly limited by a lack of knowledge of their mechanical properties, in particular their resistance to mechanical loading over longer periods of time. Furthermore, depending on, e.g., setting conditions, the end product of acidic CPCs may be mainly brushite or monetite, which have been found to behave differently under quasi-static loading. The objectives of this study were to evaluate the compressive fatigue properties of acidic CPCs, as well as the effect of phase composition on these properties. Hence, brushite cements stored for different lengths of time and with different amounts of monetite were investigated under quasi-static and dynamic compression. Both storage and brushite-to-monetite phase transformation was found to have a pronounced effect both on quasi-static compressive strength and fatigue performance of the cements, whereby a substantial phase transformation gave rise to a lower mechanical resistance. The brushite cements investigated in this study had the potential to survive 5 million cycles at a maximum compressive stress of 13 MPa. Given the limited amount of published data on fatigue properties of CPCs, this study provides an important insight into the compressive fatigue behaviour of such materials.
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Affiliation(s)
- Ingrid Ajaxon
- Materials in Medicine, Division of Applied Materials Science, Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21, Uppsala, Sweden
| | - Caroline Öhman Mägi
- Materials in Medicine, Division of Applied Materials Science, Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21, Uppsala, Sweden
| | - Cecilia Persson
- Materials in Medicine, Division of Applied Materials Science, Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21, Uppsala, Sweden.
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Ye B, Luo X, Li Z, Zhuang C, Li L, Lu L, Ding S, Tian J, Zhou C. Rapid biomimetic mineralization of collagen fibrils and combining with human umbilical cord mesenchymal stem cells for bone defects healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:43-51. [PMID: 27523994 DOI: 10.1016/j.msec.2016.05.104] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 04/30/2016] [Accepted: 05/23/2016] [Indexed: 12/17/2022]
Abstract
Collagen biomineralization is regulated by complicated interactions between the collagen matrix and non-collagenous extracellular proteins. Here, the use of sodium tripolyphosphate to simulate the templating functional motif of the C-terminal fragment of non-collagenous proteins is reported, and a low molecular weight polyacrylic acid served as a sequestration agent to stabilize amorphous calcium phosphate into nanoprecursors. Self-assembled collagen fibrils served as a fixed template for achieving rapid biomimetic mineralization in vitro. Results demonstrated that, during the mineralization process, intrafibrillar and extrafibrillar hydroxyapatite mineral with collagen fibrils formed and did so via bottom-up nanoparticle assembly based on the non-classical crystallization approach in the presence of these dual biomimetic functional analogues. In vitro human umbilical cord mesenchymal stem cell (hUCMSC) culture found that the mineralized scaffolds have a better cytocompatibility in terms of cell viability, adhesion, proliferation, and differentiation into osteoblasts. A rabbit femoral condyle defect model was established to confirm the ability of the n-HA/collagen scaffolds to facilitate bone regeneration and repair. The images of gross anatomy, MRI, CT and histomorphology taken 6 and 12weeks after surgery showed that the biomimetic mineralized collagen scaffolds with hUCMSCs can promote the healing speed of bone defects in vivo, and both of the scaffolds groups performing better than the bone defect control group. As new bone tissue formed, the scaffolds degraded and were gradually absorbed. All these results demonstrated that both of the scaffolds and cells have better histocompatibility.
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Affiliation(s)
- Bihua Ye
- Department of Material Science and Engineering, Engineering Research Center of Artificial Organs and Materials, Jinan University, Guangzhou 510632, China
| | - Xueshi Luo
- Department of Material Science and Engineering, Engineering Research Center of Artificial Organs and Materials, Jinan University, Guangzhou 510632, China
| | - Zhiwen Li
- Department of Material Science and Engineering, Engineering Research Center of Artificial Organs and Materials, Jinan University, Guangzhou 510632, China
| | - Caiping Zhuang
- Department of Anesthesiology, Huizhou Central People's Hospital, Huizhou 516001, China
| | - Lihua Li
- Department of Material Science and Engineering, Engineering Research Center of Artificial Organs and Materials, Jinan University, Guangzhou 510632, China.
| | - Lu Lu
- Department of Material Science and Engineering, Engineering Research Center of Artificial Organs and Materials, Jinan University, Guangzhou 510632, China
| | - Shan Ding
- Department of Material Science and Engineering, Engineering Research Center of Artificial Organs and Materials, Jinan University, Guangzhou 510632, China
| | - Jinhuan Tian
- Department of Material Science and Engineering, Engineering Research Center of Artificial Organs and Materials, Jinan University, Guangzhou 510632, China
| | - Changren Zhou
- Department of Material Science and Engineering, Engineering Research Center of Artificial Organs and Materials, Jinan University, Guangzhou 510632, China.
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Maenz S, Hennig M, Mühlstädt M, Kunisch E, Bungartz M, Brinkmann O, Bossert J, Kinne RW, Jandt KD. Effects of oxygen plasma treatment on interfacial shear strength and post-peak residual strength of a PLGA fiber-reinforced brushite cement. J Mech Behav Biomed Mater 2016; 57:347-58. [DOI: 10.1016/j.jmbbm.2016.01.030] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 01/25/2016] [Accepted: 01/27/2016] [Indexed: 02/01/2023]
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Saltz A, Kandalam U. Mesenchymal stem cells and alginate microcarriers for craniofacial bone tissue engineering: A review. J Biomed Mater Res A 2016; 104:1276-84. [PMID: 26826060 DOI: 10.1002/jbm.a.35647] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 12/29/2015] [Accepted: 01/07/2016] [Indexed: 01/01/2023]
Abstract
Craniofacial bone is a complex structure with an intricate anatomical and physiological architecture. The defects that exist in this region therefore require a precise control of osteogenesis in their reconstruction. Unlike traditional surgical intervention, tissue engineering techniques mediate bone development with limited postoperative risk and cost. Alginate stands as the premier polymer in bone repair because of its mild ionotropic gelation and excellent biocompatibility, biodegradability, and injectability. Alginate microcarriers are candidates of choice to mediate cells and accommodate into 3-D environment. Several studies reported the use of alginate microcarriers for delivering cells, drugs, and growth factors. This review will explore the potential use of alginate microcarrier for stem cell systems and its application in craniofacial bone tissue engineering.
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Affiliation(s)
- Adam Saltz
- Nova Southeastern University College of Dental Medicine, Fort Lauderdale, Florida, 33328
| | - Umadevi Kandalam
- Nova Southeastern University College of Dental Medicine, Fort Lauderdale, Florida, 33328
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Prabaharan M, Sivashankari PR. Prospects of Bioactive Chitosan-Based Scaffolds in Tissue Engineering and Regenerative Medicine. SPRINGER SERIES ON POLYMER AND COMPOSITE MATERIALS 2016. [DOI: 10.1007/978-81-322-2511-9_2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Sharma S, Bhonde R. Mesenchymal stromal cells are genetically stable under a hostile in vivo–like scenario as revealed by in vitro micronucleus test. Cytotherapy 2015; 17:1384-95. [DOI: 10.1016/j.jcyt.2015.07.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Revised: 06/30/2015] [Accepted: 07/05/2015] [Indexed: 02/07/2023]
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32
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Sun H, Yang HL. Calcium phosphate scaffolds combined with bone morphogenetic proteins or mesenchymal stem cells in bone tissue engineering. Chin Med J (Engl) 2015; 128:1121-7. [PMID: 25881610 PMCID: PMC4832956 DOI: 10.4103/0366-6999.155121] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Objective: The purpose of this study was to review the current status of calcium phosphate (CaP) scaffolds combined with bone morphogenetic proteins (BMPs) or mesenchymal stem cells (MSCs) in the field of bone tissue engineering (BTE). Date Sources: Data cited in this review were obtained primarily from PubMed and Medline in publications from 1979 to 2014, with highly regarded older publications also included. The terms BTE, CaP, BMPs, and MSC were used for the literature search. Study Selection: Reviews focused on relevant aspects and original articles reporting in vitro and/or in vivo results concerning the efficiency of CaP/BMPs or CaP/MSCs composites were retrieved, reviewed, analyzed, and summarized. Results: An ideal BTE product contains three elements: Scaffold, growth factors, and stem cells. CaP-based scaffolds are popular because of their outstanding biocompatibility, bioactivity, and osteoconductivity. However, they lack stiffness and osteoinductivity. To solve this problem, composite scaffolds of CaP with BMPs have been developed. New bone formation by CaP/BMP composites can reach levels similar to those of autografts. CaP scaffolds are compatible with MSCs and CaP/MSC composites exhibit excellent osteogenesis and stiffness. In addition, a CaP/MSC/BMP scaffold can repair bone defects more effectively than an autograft. Conclusions: Novel BTE products possess remarkable osteoconduction and osteoinduction capacities, and exhibit balanced degradation with osteogenesis. Further work should yield safe, viable, and efficient materials for the repair of bone lesions.
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Affiliation(s)
| | - Hui-Lin Yang
- Department of Orthopedics, First Affiliated Hospital of Soochow University, Jiangsu 215006, China
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Wu Y, Tang X, Chen J, Tang T, Guo H, Tang S, Zhao L, Ma X, Hong H, Wei J. Improvement of bioactivity, degradability, and cytocompatibility of biocement by addition of mesoporous magnesium silicate into sodium-magnesium phosphate cement. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:238. [PMID: 26395363 DOI: 10.1007/s10856-015-5579-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Accepted: 09/18/2015] [Indexed: 06/05/2023]
Abstract
A novel mesoporous magnesium-based cement (MBC) was fabricated by using the mixed powders of magnesium oxide, sodium dihydrogen phosphate, and mesoporous magnesium silicate (m-MS). The results indicate that the setting time and water absorption of the MBC increased as a function of increasing m-MS content, while compressive strength decreased. In addition, the degradability of the MBC in a solution of Tris-HCl and the ability of apatite formation on the MBC were significantly improved with the increase in m-MS content. In cell culture experiments, the results show that the attachment, proliferation, and alkaline phosphatase activity of the MC3T3-E1 cells on the MBC were significantly enhanced with the increase of the content of m-MS. It can be suggested that the MBC with good cytocompatibility could promote the proliferation and differentiation of the MC3T3-E1 cells. In short, our findings indicate that the MBC containing m-MS had promising potential as a new biocement for bone regeneration and repair applications.
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Affiliation(s)
- Yingyang Wu
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Xiaofeng Tang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Jie Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, People's Republic of China
| | - Han Guo
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, People's Republic of China
| | - Songchao Tang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Liming Zhao
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Xuhui Ma
- Polymer Science (Shenzhen) New Materials Co., Ltd., Shenzhen, 518101, People's Republic of China
| | - Hua Hong
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
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Gan Q, Zhu J, Yuan Y, Liu H, Qian J, Li Y, Liu C. A dual-delivery system of pH-responsive chitosan-functionalized mesoporous silica nanoparticles bearing BMP-2 and dexamethasone for enhanced bone regeneration. J Mater Chem B 2015; 3:2056-2066. [PMID: 32262373 DOI: 10.1039/c4tb01897d] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bone morphogenetic protein-2 (BMP-2) is considered one of the most effective and extensively used growth factors to induce osteoblast differentiation and accelerate bone regeneration. Dexamethasone (Dex) with suitable dosage can enhance BMP-2-induced osteoblast differentiation. To strengthen this synergistic osteoinductive effect, a pH-responsive chitosan-functionalized mesoporous silica nanoparticle (chi-MSN) ensemble was fabricated for dual-delivery of BMP-2 and Dex. The MSNs are prepared by a CTAB-templated sol-gel method, and further coated by chitosan via the crosslinking of glycidoxypropyltrimethoxysilane (GPTMS). The small Dex is encapsulated in the mesopores and the large BMP-2 is incorporated into the chitosan coating. These chi-MSNs can quickly release BMP-2 in a bioactive form and can then be efficiently endocytosed and further realize a controlled release of Dex with the decreased pH value into/in cells. With the synergistic action of BMP-2 and Dex outside and inside the cell, this dual hybrid delivery system can significantly stimulate osteoblast differentiation and bone regeneration in vitro and in vivo. Together, this dual-delivery strategy for osteogenic protein delivery may enhance clinical outcomes by retaining the bioactivity and optimizing the release mode of the drug/protein.
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Affiliation(s)
- Qi Gan
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
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Li D, Wang C, Shan W, Zeng R, Fang Y, Wang P. Human amnion tissue injected with human umbilical cord mesenchymal stem cells repairs damaged sciatic nerves in rats. Neural Regen Res 2015; 7:1771-8. [PMID: 25624800 PMCID: PMC4302525 DOI: 10.3969/j.issn.1673-5374.2012.23.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Accepted: 05/03/2012] [Indexed: 01/14/2023] Open
Abstract
Human umbilical cord mesenchymal stem cells, incorporated into an amnion carrier tubes, were assessed for nerve regeneration potential in a rat nerve defect model. Damaged nerves were exposed to human amnion carriers containing either human umbilical cord mesenchymal stem cell (cell transplantation group) or saline (control group). At 8, 12, 16 and 20 weeks after cell implantation, the sciatic functional index was higher in the cell transplantation group compared with the control group. Furthermore, electrophysiological examination showed that threshold stimulus and maximum stimulus intensity gradually decreased while compound action potential amplitude gradually increased. Hematoxylin-eosin staining showed that regenerating nerve fibers were arranged in nerve tracts in the cell transplantation group and connective tissue between nerve tracts and amnion tissue reduced over time. Gastrocnemius muscle cell diameter, wet weight and restoration ratio were increased. These data indicate that transplanted human umbilical cord mesenchymal stem cells, using the amnion tube connection method, promote restoration of damaged sciatic nerves in rats.
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Affiliation(s)
- Dehua Li
- Department of Anatomy, Liaoning Medical University, Jinzhou 121001, Liaoning Province, China
| | - Changhui Wang
- Department of Neurology, Fushun Second Hospital, Fushun 113001, Liaoning Province, China
| | - Wei Shan
- Department of Anatomy, Liaoning Medical University, Jinzhou 121001, Liaoning Province, China
| | - Ruixia Zeng
- Department of Anatomy, Liaoning Medical University, Jinzhou 121001, Liaoning Province, China
| | - Yan Fang
- Department of Anatomy, Liaoning Medical University, Jinzhou 121001, Liaoning Province, China
| | - Pan Wang
- Department of Anatomy, Liaoning Medical University, Jinzhou 121001, Liaoning Province, China
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Peng Z, Ao H, Wang L, Guo S, Tang T. Quaternised chitosan coating on titanium provides a self-protective surface that prevents bacterial colonisation and implant-associated infections. RSC Adv 2015. [DOI: 10.1039/c5ra07540h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The Ti rod-treated group showed radiographic signs of osseous destruction, osteolytic lesions and consecutive deformity after 14 days, while the HTi rod-treated group were free of radiographic signs of infection.
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Affiliation(s)
- Zhaoxiang Peng
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
| | - Haiyong Ao
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
| | - Ling Wang
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Shengrong Guo
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopedic Implants
- Department of Orthopedic Surgery
- Shanghai Ninth People's Hospital
- Shanghai Jiao Tong University School of Medicine
- Shanghai 200011
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Effects of adding resorbable phosphate glass fibres and PLA to calcium phosphate bone cements. J Appl Biomater Funct Mater 2014; 12:203-9. [PMID: 24744228 DOI: 10.5301/jabfm.5000167] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2013] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Calcium phosphate cements (CPCs), due to their biocompatibility and degradation properties, are being widely investigated as a replacement to more commonly used polymethylmethacrylate (PMMA) for vertebroplasty. CPCs have shown the potential to be replaced by host bone tissue during the healing/remodelling process. However, brittleness and comparatively low strength restrict the use of CPC in load-bearing applications. Although porous CPC can integrate with bone over time, slow degradation profiles and poor interconnectivity between pores restricts osseointegration to the top layer of CPC only. METHODS Polylactic acid (PLA) and phosphate glass fibres (PGFs) were incorporated in a CPC matrix to overcome the problem of inherent brittleness and limited osseointegration. RESULTS Incorporation of PLA and PGFs within CPC was successful in achieving a much less brittle CPC matrix without affecting the mechanical properties of CPC. The area under the stress-strain curve showed that the total energy to failure of the CPC hybrid was significantly greater than that of the CPC control. CONCLUSIONS The methodology adopted here to add PLA within the CPC matrix may also allow for incorporation of PLA cross-linked biochemicals. Micrographic studies revealed that it was possible to confer control over pore size, shape and interconnectivity without negatively affecting the mechanical properties of the cement. This tailorable porosity could potentially lead to better osseointegration within CPC.
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Maenz S, Kunisch E, Mühlstädt M, Böhm A, Kopsch V, Bossert J, Kinne RW, Jandt KD. Enhanced mechanical properties of a novel, injectable, fiber-reinforced brushite cement. J Mech Behav Biomed Mater 2014; 39:328-38. [DOI: 10.1016/j.jmbbm.2014.07.028] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 07/22/2014] [Accepted: 07/28/2014] [Indexed: 02/05/2023]
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Bone tissue engineering via nanostructured calcium phosphate biomaterials and stem cells. Bone Res 2014; 2:14017. [PMID: 26273526 PMCID: PMC4472121 DOI: 10.1038/boneres.2014.17] [Citation(s) in RCA: 187] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 07/25/2014] [Accepted: 07/29/2014] [Indexed: 02/05/2023] Open
Abstract
Tissue engineering is promising to meet the increasing need for bone regeneration. Nanostructured calcium phosphate (CaP) biomaterials/scaffolds are of special interest as they share chemical/crystallographic similarities to inorganic components of bone. Three applications of nano-CaP are discussed in this review: nanostructured calcium phosphate cement (CPC); nano-CaP composites; and nano-CaP coatings. The interactions between stem cells and nano-CaP are highlighted, including cell attachment, orientation/morphology, differentiation and in vivo bone regeneration. Several trends can be seen: (i) nano-CaP biomaterials support stem cell attachment/proliferation and induce osteogenic differentiation, in some cases even without osteogenic supplements; (ii) the influence of nano-CaP surface patterns on cell alignment is not prominent due to non-uniform distribution of nano-crystals; (iii) nano-CaP can achieve better bone regeneration than conventional CaP biomaterials; (iv) combining stem cells with nano-CaP accelerates bone regeneration, the effect of which can be further enhanced by growth factors; and (v) cell microencapsulation in nano-CaP scaffolds is promising for bone tissue engineering. These understandings would help researchers to further uncover the underlying mechanisms and interactions in nano-CaP stem cell constructs in vitro and in vivo, tailor nano-CaP composite construct design and stem cell type selection to enhance cell function and bone regeneration, and translate laboratory findings to clinical treatments.
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Upadhyaya L, Singh J, Agarwal V, Tewari RP. The implications of recent advances in carboxymethyl chitosan based targeted drug delivery and tissue engineering applications. J Control Release 2014; 186:54-87. [DOI: 10.1016/j.jconrel.2014.04.043] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 04/21/2014] [Accepted: 04/23/2014] [Indexed: 12/11/2022]
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Hu J, Zhou Y, Huang L, Liu J, Lu H. Effect of nano-hydroxyapatite coating on the osteoinductivity of porous biphasic calcium phosphate ceramics. BMC Musculoskelet Disord 2014; 15:114. [PMID: 24690170 PMCID: PMC3994218 DOI: 10.1186/1471-2474-15-114] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 03/05/2014] [Indexed: 12/14/2022] Open
Abstract
Background Porous biphasic calcium phosphate (BCP) ceramics exhibit good biocompatibility and bone conduction but are not inherently osteoinductive. To overcome this disadvantage, we coated conventional porous BCP ceramics with nano-hydroxyapatite (nHA). nHA was chosen as a coating material due to its high osteoinductive potential. Methods We used a hydrothermal deposition method to coat conventional porous BCP ceramics with nHA and assessed the effects of the coating on the physical and mechanical properties of the underlying BCP. Next, its effects on mesenchymal stem cell (MSC) attachment, proliferation, viability, and osteogenic differentiation were investigated. Results nHA formed a deposited layer on the BCP surface, and synthesized nHA had a rod-like shape with lengths ranging from ~50–200 nm and diameters from ~15–30 mm. The nHA coating did not significantly affect the density, porosity, flexural strength, or compressive strength of the underlying BCP (P > 0.1). Scanning electron microscopy showed MSC attachment to the scaffolds, with a healthy morphology and anchorage to nHA crystals via cytoplasmic processes. The densities of MSCs attached on BCP and nHA-coated BCP scaffolds were 62 ± 26 cells/mm2 and 63 ± 27 cells/mm2 (P > 0.1), respectively, after 1 day and 415 ± 62 cells/mm2 and 541 ± 35 cells/mm2 (P < 0.05) respectively, after 14 days. According to an MTT assay, MSC viability was higher on nHA-coated BCP scaffolds than on BCP scaffolds (P < 0.05). In addition, MSCs on nHA-coated BCP scaffolds produced more alkaline phosphatase, collagen type I, and osteocalcin than MSCs on BCP scaffolds (P < 0.05). Conclusions Our results demonstrate that BCP scaffolds coated with nHA were more conducive for MSC adhesion, proliferation, and osteogenic differentiation than conventional, uncoated BCP scaffolds, indicating that nHA coating can enhance the osteoinductive potential of BCP ceramics, making this material more suitable for applications in bone tissue engineering.
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Affiliation(s)
| | | | | | | | - Hongbin Lu
- Department of Sports Medicine, Research Center of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China.
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Tang M, Chen W, Liu J, Weir MD, Cheng L, Xu HHK. Human induced pluripotent stem cell-derived mesenchymal stem cell seeding on calcium phosphate scaffold for bone regeneration. Tissue Eng Part A 2014; 20:1295-305. [PMID: 24279868 DOI: 10.1089/ten.tea.2013.0211] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Tissue engineering provides an important approach for bone regeneration. Calcium phosphate cement (CPC) can be injected to fill complex-shaped bone defects with excellent osteoconductivity. Induced pluripotent stem cells (iPSCs) are exciting for regenerative medicine due to their potential to proliferate and differentiate into cells of all three germ layers. To date, there has been no report on iPSC seeding with CPC scaffolds. The objectives of this study were to (1) obtain iPSC-derived mesenchymal stem cells (iPSC-MSCs); (2) seed iPSC-MSCs on CPC scaffold for the first time to investigate cell attachment and proliferation; and (3) investigate osteogenic differentiation of iPSC-MSCs on CPC and mineral synthesis by the cells. iPSCs were derived from adult marrow CD34+ cells that were reprogrammed by a single episomal vector pEB-C5. iPSCs were cultured to form embryoid bodies (EBs), and MSCs were migrated out of EBs. Flow cytometry indicated that iPSC-MSCs expressed typical surface antigen profile of MSCs. Mesenchymal differentiation of iPSC-MSCs demonstrated that the iPSC-MSCs had the potential to differentiate into adipocytes, chondrocytes, and osteoblasts. iPSC-MSCs had good viability when attached on CPC scaffold. iPSC-MSCs differentiated into the osteogenic lineage and synthesized bone minerals. iPSC-MSCs on CPC in osteogenic medium yielded higher gene expressions of osteogenic markers including alkaline phosphatase (ALP), osteocalcin, collagen type I, and Runt-related transcription factor 2 than those in control medium (p<0.05). iPSC-MSCs on CPC in osteogenic medium had 10-fold increase in ALP protein than that in control medium (p<0.05). Bone mineral synthesis by iPSC-MSCs adherent to CPC scaffold was increased with time, and mineralization in osteogenic medium was three to four fold that in control medium. In conclusion, iPSCs were derived from adult marrow CD34+ cells that were reprogrammed by a single episomal vector pEB-C5, and MSCs were generated from the EBs. iPSC-MSCs showed good viability and osteogenic differentiation on CPC scaffold for the first time; hence, the novel iPSC-MSC-CPC construct is promising to promote bone regeneration in dental, craniofacial, and orthopedic repairs.
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Affiliation(s)
- Minghui Tang
- 1 Biomaterials and Tissue Engineering Division, Department of Endodontics, Prosthodontics and Operative Dentistry, University of Maryland Dental School , Baltimore, Maryland
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Chen W, Liu J, Manuchehrabadi N, Weir MD, Zhu Z, Xu HHK. Umbilical cord and bone marrow mesenchymal stem cell seeding on macroporous calcium phosphate for bone regeneration in rat cranial defects. Biomaterials 2013; 34:9917-25. [PMID: 24054499 DOI: 10.1016/j.biomaterials.2013.09.002] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Accepted: 09/02/2013] [Indexed: 02/08/2023]
Abstract
Human umbilical cord mesenchymal stem cells (hUCMSCs) are inexhaustible and can be harvested at a low cost without an invasive procedure. However, there has been no report on comparing hUCMSCs with human bone marrow MSCs (hBMSCs) for bone regeneration in vivo. The aim of this study was to investigate hUCMSC and hBMSC seeding on macroporous calcium phosphate cement (CPC), and to compare their bone regeneration in critical-sized cranial defects in rats. Cell attachment, osteogenic differentiation and mineral synthesis on RGD-modified macroporous CPC were investigated in vitro. Scaffolds with cells were implanted in 8-mm defects of athymic rats. Bone regeneration was investigated via micro-CT and histological analysis at 4, 12, and 24 weeks. Three groups were tested: CPC with hUCMSCs, CPC with hBMSCs, and CPC control without cells. Percentage of live cells and cell density on CPC in vitro were similarly good for hUCMSCs and hBMSCs. Both cells had high osteogenic expressions of alkaline phosphatase, osteocalcin, collagen I, and Runx2. Bone mineral density and trabecular thickness in hUCMSC and hBMSC groups in vivo were greater than those of CPC control group. New bone amount for hUCMSC-CPC and hBMSC-CPC constructs was increased by 57% and 88%, respectively, while blood vessel density was increased by 15% and 20%, than CPC control group at 24 weeks. hUCMSC-CPC and hBMSC-CPC groups generally had statistically similar bone mineral density, new bone amount and vessel density. In conclusion, hUCMSCs seeded on CPC were shown to match the bone regeneration efficacy of hBMSCs in vivo for the first time. Both hUCMSC-CPC and hBMSC-CPC constructs generated much more new bone and blood vessels than CPC without cells. Macroporous RGD-grafted CPC with stem cell seeding is promising for craniofacial and orthopedic repairs.
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Affiliation(s)
- Wenchuan Chen
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China; Biomaterials & Tissue Engineering Division, Department of Endodontics, Prosthodontics and Operative Dentistry, University of Maryland Dental School, Baltimore, MD 21201, USA
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Wang Q, Gu Z, Jamal S, Detamore MS, Berkland C. Hybrid hydroxyapatite nanoparticle colloidal gels are injectable fillers for bone tissue engineering. Tissue Eng Part A 2013; 19:2586-93. [PMID: 23815275 DOI: 10.1089/ten.tea.2013.0075] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Injectable bone fillers have emerged as an alternative to the invasive surgery often required to treat bone defects. Current bone fillers may benefit from improvements in dynamic properties such as shear thinning during injection and recovery of material stiffness after placement. Negatively charged inorganic hydroxyapatite (HAp) nanoparticles (NPs) were assembled with positively charged organic poly(d,l-lactic-co-glycolic acid) (PLGA) NPs to create a cohesive colloidal gel. This material is held together by electrostatic forces that may be disrupted by shear to facilitate extrusion, molding, or injection. Scanning electron micrographs of the dried colloidal gels showed a well-organized, three-dimensional porous structure. Rheology tests revealed that certain colloidal gels could recover after being sheared. Human umbilical cord mesenchymal stem cells were also highly viable when seeded on the colloidal gels. HAp/PLGA NP colloidal gels offer an attractive scheme for injectable filling and regeneration of bone tissue.
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Affiliation(s)
- Qun Wang
- 1 Department of Chemical and Biological Engineering, Iowa State University , Ames, Iowa
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He F, Ye J. Bi-layered calcium phosphate cement-based composite scaffold mimicking natural bone structure. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2013; 14:045010. [PMID: 27877603 PMCID: PMC5090329 DOI: 10.1088/1468-6996/14/4/045010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 07/26/2013] [Indexed: 06/06/2023]
Abstract
In this study, a core/shell bi-layered calcium phosphate cement (CPC)-based composite scaffold with adjustable compressive strength, which mimicked the structure of natural cortical/cancellous bone, was fabricated. The dense tubular CPC shell was prepared by isostatic pressing CPC powder with a specially designed mould. A porous CPC core with unidirectional lamellar pore structure was fabricated inside the cavity of dense tubular CPC shell by unidirectional freeze casting, followed by infiltration of poly(lactic-co-glycolic acid) and immobilization of collagen. The compressive strength of bi-layered CPC-based composite scaffold can be controlled by varying thickness ratio of dense layer to porous layer. Compared to the scaffold without dense shell, the pore interconnection of bi-layered scaffold was not obviously compromised because of its high unidirectional interconnectivity but poor three dimensional interconnectivity. The in vitro results showed that the rat bone marrow stromal cells attached and proliferated well on the bi-layered CPC-based composite scaffold. This novel bi-layered CPC-based composite scaffold is promising for bone repair.
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Affiliation(s)
- Fupo He
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Jiandong Ye
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, People’s Republic of China
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Degradation and compatibility behaviors of poly(glycolic acid) grafted chitosan. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:2626-31. [DOI: 10.1016/j.msec.2013.02.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 01/20/2013] [Accepted: 02/15/2013] [Indexed: 11/23/2022]
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Meimandi-Parizi A, Oryan A, Moshiri A. Role of tissue engineered collagen based tridimensional implant on the healing response of the experimentally induced large Achilles tendon defect model in rabbits: a long term study with high clinical relevance. J Biomed Sci 2013; 20:28. [PMID: 23672303 PMCID: PMC3663701 DOI: 10.1186/1423-0127-20-28] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 05/10/2013] [Indexed: 11/20/2022] Open
Abstract
Background Tendon injury is one of the orthopedic conditions poses with a significant clinical challenge to both the surgeons and patients. The major limitations to manage these injuries are poor healing response and development of peritendinous adhesions in the injured area. This study investigated the effectiveness of a novel collagen implant on tendon healing in rabbits. Results Seventy five mature White New-Zealand rabbits were divided into treated (n = 55) and control (n = 20) groups. The left Achilles tendon was completely transected and 2 cm excised. The defects of the treated animals were filled with collagen implants and repaired with sutures, but in control rabbits the defects were sutured similarly but the gap was left untreated. Changes in the injured and normal contralateral tendons were assessed weekly by measuring the diameter, temperature and bioelectrical characteristics of the injured area. Clinical examination was done and scored. Among the treated animals, small pilot groups were euthanized at 5, 10, 15, 20, 30, 40 and 60 (n = 5 at each time interval) and the remainder (n = 20) and the control animals at 120 days post injury (DPI). The lesions of all animals were examined at macroscopic and microscopic levels and the dry matter content, water delivery and water uptake characteristics of the lesions and normal contralateral tendons of both groups were analyzed at 120 DPI. No sign of rejection was seen in the treated lesions. The collagen implant was invaded by the inflammatory cells at the inflammatory phase, followed by fibroplasia phase in which remnant of the collagen implant were still present while no inflammatory reaction could be seen in the lesions. However, the collagen implant was completely absorbed in the remodeling phase and the newly regenerated tendinous tissue filled the gap. Compared to the controls, the treated lesions showed improved tissue alignment and less peritendinous adhesion, muscle atrophy and fibrosis. They also showed significantly better clinical scoring, indices for water uptake and water absorption, and bioelectrical characteristics than the controls. Conclusion This novel collagen implant was biodegradable, biocompatible and possibly could be considered as a substitute for auto and allografts in clinical practice in near future.
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Wu TY, Zhou ZB, He ZW, Ren WP, Yu XW, Huang Y. Reinforcement of a new calcium phosphate cement with RGD-chitosan-fiber. J Biomed Mater Res A 2013; 102:68-75. [PMID: 23606446 DOI: 10.1002/jbm.a.34669] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Accepted: 02/15/2013] [Indexed: 11/06/2022]
Abstract
Calcium phosphate cement (CPC) has been widely used in orthopedic and dental applications. A critical limitation of CPC is low strength and high susceptibility to severe fracture. Surgeons can use it only to reconstruct non-stress bearing bone, raising the need for a tougher new generation of CPC. Fibers have been used as a reinforcement of CPC to improve the strength of a pure CPC scaffold. The RGD peptides (Arg-Gly-Asp) have been used to improve the biocompatibility of the scaffold, via physical adsorption. The purpose of this study was to develop a novel CPC scaffold reinforced by RGD peptide-bearing chitosan fibers (RGD-fiber-CPC). Our data showed that the RGD-fiber-CPC scaffold had an increased flexural strength, and stimulated new bone formation in an animal model. The RGD-fiber-CPC is a novel bone graft substitute in orthopedic surgery.
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Affiliation(s)
- Tian-Yi Wu
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai 200011, China; Department of Orthopaedic Surgery, 2nd Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing 210011, China
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Fiber reinforced calcium phosphate cements – On the way to degradable load bearing bone substitutes? Biomaterials 2012; 33:5887-900. [DOI: 10.1016/j.biomaterials.2012.04.053] [Citation(s) in RCA: 127] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Accepted: 04/23/2012] [Indexed: 11/22/2022]
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Samal SK, Dash M, Van Vlierberghe S, Kaplan DL, Chiellini E, van Blitterswijk C, Moroni L, Dubruel P. Cationic polymers and their therapeutic potential. Chem Soc Rev 2012; 41:7147-94. [PMID: 22885409 DOI: 10.1039/c2cs35094g] [Citation(s) in RCA: 465] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The last decade has witnessed enormous research focused on cationic polymers. Cationic polymers are the subject of intense research as non-viral gene delivery systems, due to their flexible properties, facile synthesis, robustness and proven gene delivery efficiency. Here, we review the most recent scientific advances in cationic polymers and their derivatives not only for gene delivery purposes but also for various alternative therapeutic applications. An overview of the synthesis and preparation of cationic polymers is provided along with their inherent bioactive and intrinsic therapeutic potential. In addition, cationic polymer based biomedical materials are covered. Major progress in the fields of drug and gene delivery as well as tissue engineering applications is summarized in the present review.
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Affiliation(s)
- Sangram Keshari Samal
- Polymer Chemistry & Biomaterials Research Group, Ghent University, Krijgslaan 281, S4-Bis, B-9000 Ghent, Belgium.
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