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Lin S, Zhuang Y, Chen K, Lu J, Wang K, Han L, Li M, Li X, Zhu X, Yang M, Yin G, Lin J, Zhang X. Osteoinductive biomaterials: Machine learning for prediction and interpretation. Acta Biomater 2024:S1742-7061(24)00461-6. [PMID: 39178926 DOI: 10.1016/j.actbio.2024.08.017] [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: 06/13/2024] [Revised: 08/04/2024] [Accepted: 08/13/2024] [Indexed: 08/26/2024]
Abstract
Biomaterials with osteoinductivity are widely used for bone defect repair due to their unique structures and functions. Machine learning (ML) is pivotal in analyzing osteoinductivity and accelerating new material design. However, challenges include creating a comprehensive database of osteoinductive materials and dealing with low-quality, disparate data. As a standard for evaluating the osteoinductivity of biomaterials, ectopic ossification has been used. This paper compiles research findings from the past thirty years, resulting in a robust database validated by experts. To tackle issues of limited data samples, missing data, and high-dimensional sparsity, a data enhancement strategy is developed. This approach achieved an area under the curve (AUC) of 0.921, a precision of 0.839, and a recall of 0.833. Model interpretation identified key factors such as porosity, bone morphogenetic protein-2 (BMP-2), and hydroxyapatite (HA) proportion as crucial determinants of outcomes. Optimizing pore structure and material composition through partial dependence plot (PDP) analysis led to a new bone area ratio of 14.7 ± 7 % in animal experiments, surpassing the database average of 10.97 %. This highlights the significant potential of ML in the development and design of osteoinductive materials. STATEMENT OF SIGNIFICANCE: This study leverages machine learning to analyze osteoinductive biomaterials, addressing challenges in database creation and data quality. Our data enhancement strategy significantly improved model performance. By optimizing pore structure and material composition, we increased new bone formation rates, showcasing the vast potential of machine learning in biomaterial design.
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Affiliation(s)
- Sicong Lin
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China
| | - Yan Zhuang
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China
| | - Ke Chen
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China
| | - Jian Lu
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China; National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Kefeng Wang
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China; National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Lin Han
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China
| | - Mufei Li
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China
| | - Xiangfeng Li
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China; National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610065, China.
| | - Xiangdong Zhu
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China; National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610065, China.
| | - Mingli Yang
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China; National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610065, China
| | - Guangfu Yin
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China
| | - Jiangli Lin
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China.
| | - Xingdong Zhang
- College of Biomedical Engineering, Sichuan University, Chengdu 610065, China; Provincial Engineering Research Center for Biomaterials Genome of Sichuan, Sichuan University, Chengdu 610065, China; National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610065, China
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Ngo ST, Lee WF, Wu YF, Salamanca E, Aung LM, Chao YQ, Tsao TC, Hseuh HW, Lee YH, Wang CC, Chang WJ. Fabrication of Solvent-Free PCL/β-TCP Composite Fiber for 3D Printing: Physiochemical and Biological Investigation. Polymers (Basel) 2023; 15:polym15061391. [PMID: 36987176 PMCID: PMC10053981 DOI: 10.3390/polym15061391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/16/2023] Open
Abstract
Manufacturing three-dimensional (3D) objects with polymers/bioceramic composite materials has been investigated in recent years. In this study, we manufactured and evaluated solvent-free polycaprolactone (PCL) and beta-tricalcium phosphate (β-TCP) composite fiber as a scaffold material for 3D printing. To investigate the optimal ratio of feedstock material for 3D printing, the physical and biological characteristics of four different ratios of β-TCP compounds mixed with PCL were investigated. PCL/β-TCP ratios of 0 wt.%, 10 wt.%, 20 wt.%, and 30 wt.% were fabricated, with PCL melted at 65 °C and blended with β-TCP with no solvent added during the fabrication process. Electron microscopy revealed an even distribution of β-TCP in the PCL fibers, while Fourier transform infrared spectroscopy demonstrated that the biomaterial compounds remained intact after the heating and manufacturing process. In addition, adding 20% β-TCP into the PCL/β-TCP mixture significantly increased hardness and Young’s Modulus by 10% and 26.5%, respectively, suggesting that PCL-20 has better resistance to deformation under load. Cell viability, alkaline phosphatase (ALPase) activity, osteogenic gene expression, and mineralization were also observed to increase according to the amount of β-TCP added. Cell viability and ALPase activity were 20% higher with PCL-30, while upregulation for osteoblast-related gene expression was better with PCL-20. In conclusion, PCL-20 and PCL-30 fibers fabricated without solvent exhibited excellent mechanical properties, high biocompatibility, and high osteogenic ability, making them promising materials for 3D printing customized bone scaffolds promptly, sustainably, and cost-effectively.
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Affiliation(s)
- Sin Ting Ngo
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Wei-Fang Lee
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Yi-Fan Wu
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Eisner Salamanca
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Lwin Moe Aung
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Yan-Qiao Chao
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Ting-Chia Tsao
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Hao-Wen Hseuh
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Yi-Huan Lee
- Department of Molecular Science and Engineering, National Taipei University of Technology, Taipei 106, Taiwan
- Correspondence: (Y.-H.L.); (C.-C.W.); (W.-J.C.)
| | - Ching-Chiung Wang
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
- Correspondence: (Y.-H.L.); (C.-C.W.); (W.-J.C.)
| | - Wei-Jen Chang
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
- Dental Department, Taipei Medical University, Shuang Ho Hospital, New Taipei 235, Taiwan
- Correspondence: (Y.-H.L.); (C.-C.W.); (W.-J.C.)
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Polymer/Ceramic Nanocomposite Fibers in Bone Tissue Engineering. ADVANCES IN POLYMER SCIENCE 2023. [DOI: 10.1007/12_2023_145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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4
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Sah MK, Mukherjee S, Flora B, Malek N, Rath SN. Advancement in "Garbage In Biomaterials Out (GIBO)" concept to develop biomaterials from agricultural waste for tissue engineering and biomedical applications. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2022; 20:1015-1033. [PMID: 36406592 PMCID: PMC9672289 DOI: 10.1007/s40201-022-00815-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 06/27/2022] [Indexed: 06/16/2023]
Abstract
Presently on a global scale, one of the major concerns is to find effective strategies to manage the agricultural waste to protect the environment. One strategy that has been drawing attention among the researchers is the development of biocompatible materials from agricultural waste. This strategy implies successful conversion of agricultural waste products (e.g.: cellulose, eggshell etc.) into building blocks for biomaterial development. Some of these wastes contain even bioactive compounds having biomedical applications. The replacement and augmentation of human tissue with biomaterials as alternative to traditional method not only bypasses immune-rejection, donor scarcity, and maintenance; but also provides long term solution to damaged or malfunctioning organs. Biomaterials development as one of the key challenges in tissue engineering approach, resourced from natural origin imparts better biocompatibility due to closely mimicking composition with cellular microenvironment. The "Garbage In, Biomaterials Out (GIBO)" concept, not only recycles the agricultural wastes, but also adds to biomaterial raw products for further product development in tissue regeneration. This paper reviews the conversion of garbage agricultural by-products to the biocompatible materials for various biomedical applications. Graphical abstract The agro-waste biomass processed, purified, modified, and further utilized for the fabrication of biomaterials-based support system for tissue engineering applications to grow living body parts in vitro or in vivo.
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Affiliation(s)
- Mahesh Kumar Sah
- Department of Biotechnology, Dr. B. R. Ambedkar, National Institute of Technology, Jalandhar, Punjab 144011 India
| | - Sunny Mukherjee
- Department of Biotechnology, Dr. B. R. Ambedkar, National Institute of Technology, Jalandhar, Punjab 144011 India
| | - Bableen Flora
- Department of Biotechnology, Lovely Professional University, Jalandhar, Punjab India
| | - Naved Malek
- Department of Chemistry, S. V. National Institute of Technology, Surat, Gujarat India
| | - Subha Narayan Rath
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Medak, Telangana India
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Evaluation of the osteoinductive potential of HDPSCs cultured on β-glycerol phosphate functionalized MWCNTs/PCL membranes for bone regeneration. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03721-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Liu C, Peng Z, Xu H, gao H, Li J, jin Y, wang Y, Wang C, liu Y, hu Y, jiang C, Guo J, Zhu L. 3D print Platelet-rich plasma loaded scaffold with sustained cytokine release for bone defect repair. Tissue Eng Part A 2022; 28:700-711. [PMID: 35152730 DOI: 10.1089/ten.tea.2021.0211] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Chun Liu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China,
| | - Ziyue Peng
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China,
| | - Haixia Xu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China,
| | - Huiling gao
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China, Guangzhou, Guangdong, China,
| | - Jianjun Li
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China,
| | - yanglei jin
- The Fourth Affiliated Hospital Zhejiang University School of Medicine, 593059, Yiwu, Zhejiang, China,
| | - yihan wang
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China, guangzhou, China,
| | - Chengqiang Wang
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China, No. 253 Industrial Avenue, Guangzhou, China, 510280,
| | - yang liu
- Xiang Yang Central Hospital, Affiliated Hospital of Hubei University of Art and Science, xiangyang, China,
| | - yunteng hu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China, guangzhou, China,
| | - cong jiang
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China, guangzhou, China,
| | - Jiasong Guo
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Department of Histology and Embryology, Southern Medical University, Guangzhou, China
- Key Laboratory of Tissue Construction and Detection of Guangdong Province, Guangzhou, China
- Institute of Bone Biology, Academy of Orthopaedics, Guangdong Province, Guangzhou, China,
| | - Lixin Zhu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, No. 253, Middle Gongye Avenue, Guangzhou, China, 510280,
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Xiong Q, Zhang N, Zhang M, Wang M, Wang L, Fan Y, Lin CY. Engineer a pre-metastatic niched microenvironment to attract breast cancer cells by utilizing a 3D printed polycaprolactone/nano-hydroxyapatite osteogenic scaffold - An in vitro model system for proof of concept. J Biomed Mater Res B Appl Biomater 2022; 110:1604-1614. [PMID: 35112785 DOI: 10.1002/jbm.b.35021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 11/18/2021] [Accepted: 01/15/2022] [Indexed: 01/17/2023]
Abstract
Breast cancer bone metastasis is not a random process. It is affected by the local microenvironment which determines the propensity of cancer cells to invade and colonize into the secondary sites. This microenvironment is termed a pre-metastatic niche. With the flexibility to incorporate different biofactors, tissue-engineering scaffolds provide an advantageous environment to promote "designed" osteogenesis that may mimic the bony pre-metastatic niche. In the current study, designed polycaprolactone (PCL) scaffolds enriched with nano-hydroxyapatite (nHA) were fabricated through three-dimensional (3D) printing. Subsequently, human mesenchymal stem cells (hMSCs) were seeded onto PCL-nHA scaffolds for osteogenic differentiation to establish the pre-metastatic niched microenvironment. Furthermore, transwell migration assay was used to investigate recruitment of MDA-MB-231, MCF-7, and MDA-MB-453 breast cancer cells to the osseous PCL-nHA scaffolds. Our results showed that the mRNA levels of alkaline phosphatase (ALP), runt-related transcription factor 2 (Runx2), and osteocalcin (OCN) of hMSCs on the PCL-nHA scaffolds were dramatically increased compared those with the PCL scaffolds (control) at day 7, 14, and 28. Meanwhile, the migration analysis showed that the higher maturation of osteogenesis and bone metabolism collectively contributed to the creation of a more favorable niched site for the cancerous invasion. Moreover, one of the hypothesized key mediators for the promoted migration, CXCL12, was confirmed using an assay of antagonist LIT-927. This early study demonstrated that a designed tissue engineering scaffold can be utilized to create a bone-mimicking environment that serves as a novel platform to recapitulate the pre-metastatic niche and help interrogate the scheme of bone metastasis by breast cancer.
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Affiliation(s)
- Qisheng Xiong
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Ningze Zhang
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Miaomiao Zhang
- Beijing Institute of 3D Printing, Beijing City University, Beijing, China
| | - Meng Wang
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Lizhen Wang
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Yubo Fan
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Chia-Ying Lin
- Department of Orthopaedic Surgery, University of Cincinnati, Cincinnati, Ohio, USA
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Shao C, Zhang Z, Jin W, Zhang Z, Jin B, Jiang S, Pan H, Tang R, De Yoreo JJ, Liu XY. Oriented Crystallization of Hydroxyapatite in Self-Assembled Peptide Fibrils as a Bonelike Material. ACS Biomater Sci Eng 2021; 9:1808-1814. [PMID: 34855358 DOI: 10.1021/acsbiomaterials.1c00713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Controlling oriented crystallization is key to producing bonelike composite materials with a well-organized structure. However, producing this type of composite material using synthetic biopolymers as scaffolds is challenging. Inspired by the molecular structure of collagen-I, a collagenlike peptide─(Pro-Hyp-Gly)10 (POG10)─was designed to produce self-assembled fibrils that resemble the structure of collagen-I fibrils. In addition, the oriented mineralization of HAP crystals is formed in the fibrils that reproduces a bonelike material similar to collagen-I fibril mineralization. Unlike collagen-I fibrils, POG10 fibrils do not contain gap spaces. The molecular simulation results indicate that in addition to space confinement, the molecular field generated by POG10 can also confine the orientation of HAP, enriching our understanding of physical confinement and shedding light on the design of synthetic biopolymer scaffolds for bonelike material fabrication.
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Affiliation(s)
- Changyu Shao
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310027, China.,Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Zhisen Zhang
- College of Physical Science and Technology, Xiamen University, Xiamen 361005, China
| | - Wenjing Jin
- Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University School of Medicine and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou 310006, China
| | - Zhan Zhang
- Department of Orthopedics, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China
| | - Biao Jin
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Shuqin Jiang
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310027, China
| | - Haihua Pan
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310027, China
| | - Ruikang Tang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - James J De Yoreo
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Xiang Yang Liu
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
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Ercan H, Elçin AE, Elçin YM. Preliminary assessment of an injectable extracellular matrix from decellularized bovine myocardial tissue. ACTA ACUST UNITED AC 2021; 76:491-501. [PMID: 34043893 DOI: 10.1515/znc-2021-0039] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/08/2021] [Indexed: 12/14/2022]
Abstract
The goal of this study was to develop an injectable form of decellularized bovine myocardial tissue matrix which could retain high levels of functional ECM molecules, and could gel at physiological temperature. Dissected ventricular tissue was processed by a detergent-based protocol, lyophilized, enzymatically-digested, and neutralized to form the injectable myocardial matrix (IMM). Histochemical analysis, DNA quantification, and agarose gel electrophoresis demonstrated the efficiency of the applied protocol. Chemical, thermal, morphological, and rheological characterization; protein and sulfated glycosaminoglycan (sGAG) content analysis were performed, in vitro biological properties were evaluated. An in vivo histocompatibility and biodegradability study was performed. Histochemistry revealed complete removal of myocardial cells. DNA content analysis revealed a significant decrease (87%) in the nuclear material, while protein and sGAG contents were highly preserved following decellularization. Soluble IMM was capable of turning into gel form at ∼37 °C, indicating selfassembling property. In vitro findings showed the biomaterial was noncytotoxic, nonhemolytic, and supported the attachment and proliferation of mesenchymal stem cells. In vivo study demonstrated IMM was well-tolerated by rats receiving subcutaneous injection. This work demonstrates that the IMM from decellularized bovine myocardial tissue has the potential for use as a feasible regenerative biomaterial in prospective tissue engineering and regenerative medicine studies.
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Affiliation(s)
- Hatice Ercan
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
- Department of Chemistry, Kamil Özdag Faculty of Science, Karamanoglu Mehmetbey University, Karaman, Turkey
| | - Ayşe Eser Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
| | - Yaşar Murat Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
- Biovalda Health Technologies, Inc., Ankara, Turkey
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Siddiqui N, Kishori B, Rao S, Anjum M, Hemanth V, Das S, Jabbari E. Electropsun Polycaprolactone Fibres in Bone Tissue Engineering: A Review. Mol Biotechnol 2021; 63:363-388. [PMID: 33689142 DOI: 10.1007/s12033-021-00311-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 02/20/2021] [Indexed: 01/17/2023]
Abstract
Regeneration of bone tissue requires novel load bearing, biocompatible materials that support adhesion, spreading, proliferation, differentiation, mineralization, ECM production and maturation of bone-forming cells. Polycaprolactone (PCL) has many advantages as a biomaterial for scaffold production including tuneable biodegradation, relatively high mechanical toughness at physiological temperature. Electrospinning produces nanofibrous porous matrices that mimic many properties of natural tissue extracellular matrix with regard to surface area, porosity and fibre alignment. The biocompatibility and hydrophilicity of PCL nanofibres can be improved by combining PCL with other biomaterials to form composite scaffolds for bone regeneration. This work reviews the most recent research on synthesis, characterization and cellular response to nanofibrous PCL scaffolds and the composites of PCL with other natural and synthetic materials for bone tissue engineering.
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Affiliation(s)
- Nadeem Siddiqui
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India.
| | - Braja Kishori
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Saranya Rao
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Mohammad Anjum
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Venkata Hemanth
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | - Swati Das
- Department of Genetic Engineering, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Esmaiel Jabbari
- Biomaterials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
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Abstract
Various approaches have been evaluated for developing three-dimensional (3D) scaffolds for modeling or engineering of the bone tissue. However, most of such attempts have come up short in mimicking the natural bone tissue extracellular matrix (ECM) microenvironment, especially its natural bioactive content. Here we describe the methodology for the preparation of a natural ECM-based multichannel construct as a biomimetic 3D bone tissue model. We elucidate the construction of the composite scaffold incorporating decellularized small intestinal submucosa ECM, synthetic hydroxyapatite and poly(ε-caprolactone), and the mechanical stimulation of the cell-seeded construct under bioreactor culture.
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12
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Yuan B, Wang Z, Zhao Y, Tang Y, Zhou S, Sun Y, Chen X. In Vitro and In Vivo Study of a Novel Nanoscale Demineralized Bone Matrix Coated PCL/β-TCP Scaffold for Bone Regeneration. Macromol Biosci 2020; 21:e2000336. [PMID: 33346401 DOI: 10.1002/mabi.202000336] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/29/2020] [Indexed: 12/14/2022]
Abstract
Bone defects remains a challenge for surgeons. Bone graft scaffold can fill the defect and enhance the bone regeneration. Demineralized bone matrix (DBM) is an allogeneic bone graft substitute, which can only be used as a filling material rather than a structural bone graft. Coating of the scaffolds with nanoscale DBM may enhance the osteoinductivity or osteoconductivity. Herein the lyophilization method is presented to coat the nano-DBM on surface of the porous polycaprolactone (PCL)/β-tricalcium phosphate (β-TCP) scaffolds fabricated by 3D printing technology. The morphology, elastic modulus, in vitro cell biocompatibility, and in vivo performance are investigated. Scanning electron microscope (SEM) shows DBM particle clusters with size of 200-500 nm are observed on scaffolds fibers after coating. MC3T3-E1 cells on nano-DBM coated PCL/β-TCP scaffold show better activity than on PCL/β-TCP scaffold. In vivo tests show better infiltration of new bone tissue in nano-DBM coated PCL/β-TCP scaffold than PCL/β-TCP scaffold via the interface. These results show the presence of nano-DBM coating on PCL/β-TCP scaffold could enhance the attachment, proliferation, and viability of cells and benefit for the new bone formation surrounding and deep inside the scaffolds. Nano-DBM could potentially be used as a new kind of biomaterial for bone defect treatment.
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Affiliation(s)
- Bo Yuan
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Zhiwei Wang
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Yin Zhao
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Yifan Tang
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Shengyuan Zhou
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Yanqing Sun
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Xiongsheng Chen
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
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Rusu LC, Ardelean LC, Jitariu AA, Miu CA, Streian CG. An Insight into the Structural Diversity and Clinical Applicability of Polyurethanes in Biomedicine. Polymers (Basel) 2020; 12:E1197. [PMID: 32456335 PMCID: PMC7285236 DOI: 10.3390/polym12051197] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/13/2020] [Accepted: 05/22/2020] [Indexed: 01/16/2023] Open
Abstract
Due to their mechanical properties, ranging from flexible to hard materials, polyurethanes (PUs) have been widely used in many industrial and biomedical applications. PUs' characteristics, along with their biocompatibility, make them successful biomaterials for short and medium-duration applications. The morphology of PUs includes two structural phases: hard and soft segments. Their high mechanical resistance featuresare determined by the hard segment, while the elastomeric behaviour is established by the soft segment. The most important biomedical applications of PUs include antibacterial surfaces and catheters, blood oxygenators, dialysis devices, stents, cardiac valves, vascular prostheses, bioadhesives/surgical dressings/pressure-sensitive adhesives, drug delivery systems, tissue engineering scaffolds and electrospinning, nerve generation, pacemaker lead insulation and coatings for breast implants. The diversity of polyurethane properties, due to the ease of bulk and surface modification, plays a vital role in their applications.
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Affiliation(s)
- Laura-Cristina Rusu
- Department of Oral Pathology, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania;
| | - Lavinia Cosmina Ardelean
- Department of Technology of Materials and Devices in Dental Medicine, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania
| | - Adriana-Andreea Jitariu
- Department of Microscopic Morphology/Histology and Angiogenesis Research Center Timisoara, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania;
| | - Catalin Adrian Miu
- 3rd Department of Orthopaedics-Traumatology, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania;
| | - Caius Glad Streian
- Department of Cardiac Surgery, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu sq, 300041 Timisoara, Romania;
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Rostami F, Tamjid E, Behmanesh M. Drug-eluting PCL/graphene oxide nanocomposite scaffolds for enhanced osteogenic differentiation of mesenchymal stem cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:111102. [PMID: 32600706 DOI: 10.1016/j.msec.2020.111102] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 02/07/2023]
Abstract
Recently, drug-eluting nanofibrous scaffolds have attracted a great attention to enhance the cell differentiation through biomimicking the extracellular matrix (ECM) in regenerative medicine. In this study, electrospun nanocomposite polycaprolactone (PCL)-based scaffolds containing synthesized graphene oxide (GO) nanosheets and osteogenic drugs, i.e. dexamethasone and simvastatin were fabricated. The physicochemical and surface properties of the scaffolds were investigated through FTIR, wettability, pH, and drug release studies. The cell viability, differentiation, and biomineralization were studied on mesenchymal stem cells (MSCs) by Alamar Blue, alkaline phosphatase (ALP) activity, and Alizarin Red-S staining, respectively. Uniformly distributed GO (thickness < 1 nm) in PCL nanofibers was observed by electron microscopy. It was revealed that the addition of GO and the drugs improved the hydrophilicity, cell viability, and osteogenic differentiation, in addition to pH changes, in comparison with PCL scaffolds. Despite the notable reduction in the cell viability, significant differentiation was revealed by ALP assay on PCL/GO-Dex scaffolds. Noteworthy, a twofold increase in the osteogenic differentiation was observed in comparison with the cells cultured in osteogenic differentiation medium, while a significant biomineralization was observed. The results of this study indicate the synergistic effect of GO and dexamethasone on improving osteogenic differentiation of drug-eluting nanocomposite scaffolds in bone tissue engineering applications.
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Affiliation(s)
- Fatemeh Rostami
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Elnaz Tamjid
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Mehrdad Behmanesh
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran; Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
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15
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Veronesi F, Maglio M, Brogini S, Fini M. In vivo studies on osteoinduction: A systematic review on animal models, implant site, and type and postimplantation investigation. J Biomed Mater Res A 2020; 108:1834-1866. [PMID: 32297695 DOI: 10.1002/jbm.a.36949] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 03/15/2020] [Accepted: 03/28/2020] [Indexed: 11/10/2022]
Abstract
Musculoskeletal diseases involving loss of tissue usually require management with bone grafts, among which autografts are still the gold standard. To overcome autograft disadvantages, the development of new scaffolds is constantly increasing, as well as the number of in vivo studies evaluating their osteoinductivity in ectopic sites. The aim of the present systematic review is to evaluate the last 10 years of osteoinduction in vivo studies. The review is focused on: (a) which type of animal model is most suitable for osteoinduction evaluation; (b) what are the most used types of scaffolds; (c) what kind of post-explant evaluation is most used. Through three websites (www.pubmed.com, www.webofknowledge.com and www.embase.com), 77 in vivo studies were included. Fifty-eight studies were conducted in small animal models (rodents) and 19 in animals of medium or large size (rabbits, dogs, goats, sheep, and minipigs). Despite the difficulty in establishing the most suitable animal model for osteoinductivity studies, small animals (in particular mice) are the most utilized. Intramuscular implantation is more frequent than subcutis, especially in large animals, and synthetic scaffolds (especially CaP ceramics) are preferred than natural ones, also in combination with cells and growth factors. Paraffin histology and histomorphometric evaluations are usually employed for postimplantation analyses.
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Affiliation(s)
- Francesca Veronesi
- IRCCS-Istituto Ortopedico Rizzoli, Laboratory of Preclinical and Surgical Studies, Bologna, Italy
| | - Melania Maglio
- IRCCS-Istituto Ortopedico Rizzoli, Laboratory of Preclinical and Surgical Studies, Bologna, Italy
| | - Silvia Brogini
- IRCCS-Istituto Ortopedico Rizzoli, Laboratory of Preclinical and Surgical Studies, Bologna, Italy
| | - Milena Fini
- IRCCS-Istituto Ortopedico Rizzoli, Laboratory of Preclinical and Surgical Studies, Bologna, Italy
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16
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Lalegül‐Ülker Ö, Vurat MT, Elçin AE, Elçin YM. Magnetic silk fibroin composite nanofibers for biomedical applications: Fabrication and evaluation of the chemical, thermal, mechanical, and
in vitro
biological properties. J Appl Polym Sci 2019. [DOI: 10.1002/app.48040] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Özge Lalegül‐Ülker
- Tissue Engineering, Biomaterials, and Nanobiotechnology LaboratoryAnkara University Faculty of Science, and Ankara University Stem Cell Institute Ankara Turkey
| | - Murat Taner Vurat
- Tissue Engineering, Biomaterials, and Nanobiotechnology LaboratoryAnkara University Faculty of Science, and Ankara University Stem Cell Institute Ankara Turkey
- Biovalda Health Technologies, Inc. Ankara Turkey
| | - Ayşe Eser Elçin
- Tissue Engineering, Biomaterials, and Nanobiotechnology LaboratoryAnkara University Faculty of Science, and Ankara University Stem Cell Institute Ankara Turkey
| | - Yaşar Murat Elçin
- Tissue Engineering, Biomaterials, and Nanobiotechnology LaboratoryAnkara University Faculty of Science, and Ankara University Stem Cell Institute Ankara Turkey
- Biovalda Health Technologies, Inc. Ankara Turkey
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17
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Tanrıverdi AK, Polat O, Elçin AE, Ahlat O, Gürman G, Günalp M, Oğuz AB, Genç S, Elçin YM. Mesenchymal stem cell transplantation in polytrauma: Evaluation of bone and liver healing response in an experimental rat model. Eur J Trauma Emerg Surg 2019; 46:53-64. [PMID: 30820597 DOI: 10.1007/s00068-019-01101-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 02/25/2019] [Indexed: 12/16/2022]
Abstract
PURPOSE Trauma is the most common cause of death of young people in the world. As known, mesenchymal stem cells (MSCs) accelerate tissue regeneration mechanisms. In our study, we aimed to investigate the effects of MSCs transplantation on the healing of liver and bone tissue by considering trauma secondary inflammatory responses. METHODS 56 adult Wistar-albino rats were divided into two groups: the polytrauma (liver and bone) (n = 28), and the liver trauma group (n = 28). At 36 h and 5th day after surgery, both rats with polytrauma and with isolated liver injury received either intravenous (IV) or intraperitoneal (IP) injections of MSCs (one million cells per kg body weight). Untreated groups received IV and IP saline injections. At day 21 after surgery, liver, tibia and fibula of the subjects were excised and evaluated for histopathologic and histomorphometric examination. Additionally, whole blood count (white blood cells, hemoglobin and platelets), C-reactive protein (CRP), glucose, alanine aminotransferase (ALT), aspartate aminotransferase (AST), albumin, blood gas, and trauma markers interleukin-1B (IL-1B), interleukin-6 (IL-6), and tumor necrosis factor alpha (TNF alpha) levels were investigated. RESULTS In general, MSC transplantations were well tolerated by the subjects. It was found that ALT, CRP, albumin were significantly lower in rats which received MSCs (p < 0.001). Inflammation of the liver and bone tissue in the MSC-injected rats were significantly lower than that of the untreated groups. CONCLUSIONS Herewith we have shown that MSC infusion in posttraumatic rats leads to less aggressive and more effective consequences on liver and bone tissue healing. Human MSC treatment for trauma is still in early stages of development; thus standard protocols, and patient inclusion criteria should be established beforehand clinical trials.
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Affiliation(s)
- Ayça Koca Tanrıverdi
- Department of Emergency Medicine, School of Medicine, Ankara University, Ankara, Turkey.
| | - Onur Polat
- Department of Emergency Medicine, School of Medicine, Ankara University, Ankara, Turkey
| | - Ayşe Eser Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, Ankara, Turkey.,Stem Cell Institute, Ankara University, Ankara, Turkey
| | - Ozan Ahlat
- Division of Pathology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - Günhan Gürman
- Stem Cell Institute, Ankara University, Ankara, Turkey.,Department of Hematology, School of Medicine, Ankara University, Ankara, Turkey
| | - Müge Günalp
- Department of Emergency Medicine, School of Medicine, Ankara University, Ankara, Turkey
| | - Ahmet Burak Oğuz
- Department of Emergency Medicine, School of Medicine, Ankara University, Ankara, Turkey
| | - Sinan Genç
- Department of Emergency Medicine, School of Medicine, Ankara University, Ankara, Turkey
| | - Yaşar Murat Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, Ankara, Turkey. .,Biovalda Health Technologies, Inc, Ankara, Turkey. .,Faculty of Science, Biochemistry Division, Ankara University, Tandogan, 06100, Ankara, Turkey.
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18
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Parmaksiz M, Elçin AE, Elçin YM. Decellularized bovine small intestinal submucosa-PCL/hydroxyapatite-based multilayer composite scaffold for hard tissue repair. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 94:788-797. [DOI: 10.1016/j.msec.2018.10.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 09/14/2018] [Accepted: 10/02/2018] [Indexed: 12/13/2022]
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19
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Koç Demir A, Elçin AE, Elçin YM. Osteogenic differentiation of encapsulated rat mesenchymal stem cells inside a rotating microgravity bioreactor: in vitro and in vivo evaluation. Cytotechnology 2018; 70:1375-1388. [PMID: 29943233 PMCID: PMC6214859 DOI: 10.1007/s10616-018-0230-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 05/23/2018] [Indexed: 01/24/2023] Open
Abstract
The objective of this study is to evaluate the in vitro and in vivo osteogenic potential of rat bone marrow mesenchymal stem cells (BM-MSCs) using chitosan/hydroxyapatite (C/HAp) microbeads as encapsulation matrix under osteoinductive medium and dynamic culture conditions. The degradation characteristics of C/HAp microbeads were evaluated under in vitro and in vivo conditions for 180 days. BM-MSCs were encapsulated in C/HAp microbeads with > 85% viability, and were cultured in a slow turning lateral vessel-type rotating bioreactor simulating microgravity conditions for 28 days, under the effect of osteogenic inducers. MTT assay showed that the metabolic activity of encapsulated cells was preserved > 80% after a week. In vitro experiments confirmed that the encapsulated BM-MSCs differentiated into osteoblastic cells, formed bone-like tissue under osteogenic microgravity bioreactor conditions. Preliminary in vivo study indicated C/HAp microbeads containing BM-MSCs were able to repair the surgically-created small bone defects in the rat femur. BM-MSCs-C/HAp composite microbeads may have potential for modular bone regeneration.
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Affiliation(s)
- Aysel Koç Demir
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Faculty of Science and Stem Cell Institute, Ankara University, Degol Caddesi, Tandogan, 06100, Ankara, Turkey
| | - Ayşe Eser Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Faculty of Science and Stem Cell Institute, Ankara University, Degol Caddesi, Tandogan, 06100, Ankara, Turkey
| | - Yaşar Murat Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Faculty of Science and Stem Cell Institute, Ankara University, Degol Caddesi, Tandogan, 06100, Ankara, Turkey.
- Biovalda Health Technologies, Inc., Ankara, Turkey.
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20
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Koç Demir A, Elçin AE, Elçin YM. Strontium-modified chitosan/montmorillonite composites as bone tissue engineering scaffold. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 89:8-14. [DOI: 10.1016/j.msec.2018.03.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 02/16/2018] [Accepted: 03/21/2018] [Indexed: 10/17/2022]
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21
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Nalvuran H, Elçin AE, Elçin YM. Nanofibrous silk fibroin/reduced graphene oxide scaffolds for tissue engineering and cell culture applications. Int J Biol Macromol 2018; 114:77-84. [DOI: 10.1016/j.ijbiomac.2018.03.072] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 12/17/2017] [Accepted: 03/14/2018] [Indexed: 10/17/2022]
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22
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Scheinpflug J, Pfeiffenberger M, Damerau A, Schwarz F, Textor M, Lang A, Schulze F. Journey into Bone Models: A Review. Genes (Basel) 2018; 9:E247. [PMID: 29748516 PMCID: PMC5977187 DOI: 10.3390/genes9050247] [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: 03/21/2018] [Revised: 04/24/2018] [Accepted: 05/03/2018] [Indexed: 12/16/2022] Open
Abstract
Bone is a complex tissue with a variety of functions, such as providing mechanical stability for locomotion, protection of the inner organs, mineral homeostasis and haematopoiesis. To fulfil these diverse roles in the human body, bone consists of a multitude of different cells and an extracellular matrix that is mechanically stable, yet flexible at the same time. Unlike most tissues, bone is under constant renewal facilitated by a coordinated interaction of bone-forming and bone-resorbing cells. It is thus challenging to recreate bone in its complexity in vitro and most current models rather focus on certain aspects of bone biology that are of relevance for the research question addressed. In addition, animal models are still regarded as the gold-standard in the context of bone biology and pathology, especially for the development of novel treatment strategies. However, species-specific differences impede the translation of findings from animal models to humans. The current review summarizes and discusses the latest developments in bone tissue engineering and organoid culture including suitable cell sources, extracellular matrices and microfluidic bioreactor systems. With available technology in mind, a best possible bone model will be hypothesized. Furthermore, the future need and application of such a complex model will be discussed.
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Affiliation(s)
- Julia Scheinpflug
- German Federal Institute for Risk Assessment (BfR), German Centre for the Protection of Laboratory Animals (Bf3R),10589 Berlin, Germany.
| | - Moritz Pfeiffenberger
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, 10117 Berlin, Germany.
- German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, 10117 Berlin, Germany.
| | - Alexandra Damerau
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, 10117 Berlin, Germany.
- German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, 10117 Berlin, Germany.
| | - Franziska Schwarz
- German Federal Institute for Risk Assessment (BfR), German Centre for the Protection of Laboratory Animals (Bf3R),10589 Berlin, Germany.
| | - Martin Textor
- German Federal Institute for Risk Assessment (BfR), German Centre for the Protection of Laboratory Animals (Bf3R),10589 Berlin, Germany.
| | - Annemarie Lang
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, 10117 Berlin, Germany.
- German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, 10117 Berlin, Germany.
| | - Frank Schulze
- German Federal Institute for Risk Assessment (BfR), German Centre for the Protection of Laboratory Animals (Bf3R),10589 Berlin, Germany.
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Meka SRK, Kumar Verma S, Agarwal V, Chatterjee K. In Situ Silication of Polymer Nanofibers to Engineer Multi-Biofunctional Composites. ChemistrySelect 2018. [DOI: 10.1002/slct.201703124] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sai Rama Krishna Meka
- Department of Materials Engineering; Indian Institute of Science; Bangalore 560012 India, Tel: +91-80-22933408
| | - Shailendra Kumar Verma
- Department of Materials Engineering; Indian Institute of Science; Bangalore 560012 India, Tel: +91-80-22933408
| | - Vipul Agarwal
- Department of Materials Engineering; Indian Institute of Science; Bangalore 560012 India, Tel: +91-80-22933408
| | - Kaushik Chatterjee
- Department of Materials Engineering; Indian Institute of Science; Bangalore 560012 India, Tel: +91-80-22933408
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24
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Selection of Suitable Reference Genes for Quantitative Real-Time PCR Normalization in Human Stem Cell Research. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1119:151-168. [PMID: 30267307 DOI: 10.1007/5584_2018_277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Quantitative real-time polymerase chain reaction (qRT-PCR) is a widely utilized method for evaluating the gene expressions in stem cell research. This method enables researchers to obtain fast and precise results, but the accuracy of the data depends on certain factors, such as those associated with biological sample preparation and PCR efficiency. In order to achieve accurate and reliable results, it is of utmost importance to designate the reference genes, the expressions of which are suitable to all kinds of experimental conditions. Hence it is vital to normalize the qRT-PCR data by using the reference genes. In recent years, it has been found that the expression levels of reference genes widely used in stem cell research present a substantial amount of variation and are not necessarily suitable for normalization. This chapter at hand stresses the significance of selecting suitable reference genes from the point view of human stem cell research.
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Abstract
This review is focused on the use of membranes for the specific application of bone regeneration. The first section focuses on the relevance of membranes in this context and what are the specifications that they should possess to improve the regeneration of bone. Afterward, several techniques to engineer bone membranes by using "bulk"-like methods are discussed, where different parameters to induce bone formation are disclosed in a way to have desirable structural and functional properties. Subsequently, the production of nanostructured membranes using a bottom-up approach is discussed by highlighting the main advances in the field of bone regeneration. Primordial importance is given to the promotion of osteoconductive and osteoinductive capability during the membrane design. Whenever possible, the films prepared using different techniques are compared in terms of handability, bone guiding ability, osteoinductivity, adequate mechanical properties, or biodegradability. A last chapter contemplates membranes only composed by cells, disclosing their potential to regenerate bone.
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Affiliation(s)
- Sofia G Caridade
- Department of Chemistry CICECO, Aveiro Institute of Materials, University of Aveiro , Aveiro, Portugal
| | - João F Mano
- Department of Chemistry CICECO, Aveiro Institute of Materials, University of Aveiro , Aveiro, Portugal
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26
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Li X, Cheng R, Sun Z, Su W, Pan G, Zhao S, Zhao J, Cui W. Flexible bipolar nanofibrous membranes for improving gradient microstructure in tendon-to-bone healing. Acta Biomater 2017; 61:204-216. [PMID: 28778532 DOI: 10.1016/j.actbio.2017.07.044] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Revised: 06/30/2017] [Accepted: 07/31/2017] [Indexed: 01/08/2023]
Abstract
Enthesis is a specialized tissue interface between the tendon and bone. Enthesis structure is very complex because of gradient changes in its composition and structure. There is currently no strategy to create a suitable environment and to regenerate the gradual-changing enthesis because of the modular complexities between two tissue types. Herein, a dual-layer organic/inorganic flexible bipolar fibrous membrane (BFM) was successfully fabricated by electrospinning to generate biomimetic non-mineralized fibrocartilage and mineralized fibrocartilage in tendon-to-bone integration of enthesis. The growth of the in situ apatite nanoparticle layer was induced on the nano hydroxyapatite-poly-l-lactic acid (nHA-PLLA) fibrous layer in simulated body solution, and the poly-l-lactic acid (PLLA) fibrous layer retained its original properties to induce tendon regeneration. The in vivo results showed that BFM significantly increased the area of glycosaminoglycan staining at the tendon-bone interface and improved collagen organization when compared to the simplex fibrous membrane (SFM) of PLLA. Implanting the bipolar membrane also induced bone formation and fibrillogenesis as assessed by micro-CT and histological analysis. Biomechanical testing showed that the BFM group had a greater ultimate load-to-failure and stiffness than the SFM group at 12weeks after surgery. Therefore, this flexible bipolar nanofibrous membrane improves the healing and regeneration process of the enthesis in rotator cuff repair. STATEMENT OF SIGNIFICANCE In this study, we generated a biomimetic dual-layer organic/inorganic flexible bipolar fibrous membrane by sequential electrospinning and in situ biomineralization, producing integrated bipolar fibrous membranes of PLLA fibrous membrane as the upper layer and nHA-PLLA fibrous membrane as the lower layer to mimic non-mineralized fibrocartilage and mineralized fibrocartilage in tendon-to-bone integration of enthesis. Flexible bipolar nanofibrous membranes could be easily fabricated with gradient microstructure for enthesis regeneration in rotator cuff tears.
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27
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Functionalization of poly(ε-caprolactone) surface with lactose-modified chitosan via alkaline hydrolysis: ToF-SIMS characterization. Biointerphases 2016; 11:02A323. [PMID: 26905217 DOI: 10.1116/1.4942498] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Functionalization of poly(ε-caprolactone) (PCL) was performed via hydrolysis and subsequent grafting of lactose-modified chitosan (chitlac) at two different degrees of derivatization (9% and 64%). Time of flight secondary ion mass spectrometry (ToF-SIMS) and multivariate analysis (principal component analysis) were successfully applied to the characterization of PCL surface chemistry, evidencing changes in the biopolymer surface following base-catalyzed hydrolysis treatment. ToF-SIMS analysis also confirmed positive EDC/NHS-catalyzed (EDC: N-ethyl-N'-(3-(dimethylamino)propyl)carbodiimide; NHS: N-hydroxysuccinimide) immobilization of chitlac onto activated PCL surface, with formation of amide bonds between PCL surface carboxyl groups and amine residues of chitlac. Yield of grafting reaction was also shown to be dependent upon the lactosilation degree of chitlac.
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28
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Besalti O, Aktas Z, Can P, Akpinar E, Elcin AE, Elcin YM. The use of autologous neurogenically-induced bone marrow-derived mesenchymal stem cells for the treatment of paraplegic dogs without nociception due to spinal trauma. J Vet Med Sci 2016; 78:1465-1473. [PMID: 27301583 PMCID: PMC5059374 DOI: 10.1292/jvms.15-0571] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The aim of this study was to investigate the effects of percutaneous transplanted autologous neurogenically-induced bone marrow-derived mesenchymal stem cells (NIBM-MSCs) in paraplegic dogs without deep pain perception (DPP) secondary to external spinal trauma. Thirteen client owned dogs that had failed in improvement neurologically at least 42 days after conservative management, decompression and decompression-stabilization were included in the study. Each dog received two doses of autologous 5.0 × 106 NIBM-MSCs suspension, which were positive to 2',3'-Cyclic-nucleotide-3'-phosphodiesterase (CNPase) and Microtubule-associated protein 2 (MAP-2), as well as to Glial fibrillary acidic protein (GFAP) and beta III tubulin. The cells were injected into the spinal cord through the hemilaminectomy or laminectomy defects percutaneously with 21 days interval for 2 times. The results were evaluated using Texas Spinal Cord Injury Scale (TSCIS), somatosensory evoked potentials (SEP) and motor evoked potentials (MEP) at the admission time, cell transplantation procedures and during 2, 5, 7 and 12th months after the second cell transplantation. Improvement after cell transplantation in gait, nociception, proprioception, SEP and MEP results was observed in just 2 cases, and only gait score improvement was seen in 6 cases, and no improvement was recorded in 5 cases. All progresses were observed until 2nd month after the second cell transplantation, however, there was no improvement after this period. In conclusion, percutaneous transplantation of autologous NIBM-MSCs is a promising candidate modality for cases with spinal cord injury after spinal trauma and poor prognosis.
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Affiliation(s)
- Omer Besalti
- Ankara University Faculty of Veterinary Medicine, Department of Surgery, Ankara, Turkey
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Mele L, Vitiello PP, Tirino V, Paino F, De Rosa A, Liccardo D, Papaccio G, Desiderio V. Changing Paradigms in Cranio-Facial Regeneration: Current and New Strategies for the Activation of Endogenous Stem Cells. Front Physiol 2016; 7:62. [PMID: 26941656 PMCID: PMC4764712 DOI: 10.3389/fphys.2016.00062] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 02/09/2016] [Indexed: 12/20/2022] Open
Abstract
Craniofacial area represent a unique district of human body characterized by a very high complexity of tissues, innervation and vascularization, and being deputed to many fundamental function such as eating, speech, expression of emotions, delivery of sensations such as taste, sight, and earing. For this reasons, tissue loss in this area following trauma or for example oncologic resection, have a tremendous impact on patients' quality of life. In the last 20 years regenerative medicine has emerged as one of the most promising approach to solve problem related to trauma, tissue loss, organ failure etc. One of the most powerful tools to be used for tissue regeneration is represented by stem cells, which have been successfully implanted in different tissue/organs with exciting results. Nevertheless, both autologous and allogeneic stem cell transplantation raise many practical and ethical concerns that make this approach very difficult to apply in clinical practice. For this reason different cell free approaches have been developed aiming to the mobilization, recruitment, and activation of endogenous stem cells into the injury site avoiding exogenous cells implant but instead stimulating patients' own stem cells to repair the lesion. To this aim many strategies have been used including functionalized bioscaffold, controlled release of stem cell chemoattractants, growth factors, BMPs, Platelet-Rich-Plasma, and other new strategies such as ultrasound wave and laser are just being proposed. Here we review all the current and new strategies used for activation and mobilization of endogenous stem cells in the regeneration of craniofacial tissue.
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Affiliation(s)
- Luigi Mele
- Department of Experimental Medicine, Section of Biotechnology and Medical Histology and Embryology, Second University of Naples Naples, Italy
| | - Pietro Paolo Vitiello
- Medical Oncology, Dipartimento Medico-Chirurgico di Internistica Clinica e Sperimentale "F. Magrassi e A. Lanzara," Second University of Naples Naples, Italy
| | - Virginia Tirino
- Department of Experimental Medicine, Section of Biotechnology and Medical Histology and Embryology, Second University of Naples Naples, Italy
| | - Francesca Paino
- Department of Experimental Medicine, Section of Biotechnology and Medical Histology and Embryology, Second University of Naples Naples, Italy
| | - Alfredo De Rosa
- Department of Odontology and Surgery, Second University of Naples Naples, Italy
| | - Davide Liccardo
- Department of Experimental Medicine, Section of Biotechnology and Medical Histology and Embryology, Second University of Naples Naples, Italy
| | - Gianpaolo Papaccio
- Department of Experimental Medicine, Section of Biotechnology and Medical Histology and Embryology, Second University of Naples Naples, Italy
| | - Vincenzo Desiderio
- Department of Experimental Medicine, Section of Biotechnology and Medical Histology and Embryology, Second University of Naples Naples, Italy
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Flores-Cedillo ML, Alvarado-Estrada KN, Pozos-Guillén AJ, Murguía-Ibarra JS, Vidal MA, Cervantes-Uc JM, Rosales-Ibáñez R, Cauich-Rodríguez JV. Multiwall carbon nanotubes/polycaprolactone scaffolds seeded with human dental pulp stem cells for bone tissue regeneration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:35. [PMID: 26704552 DOI: 10.1007/s10856-015-5640-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 11/27/2015] [Indexed: 06/05/2023]
Abstract
Conventional approaches to bone regeneration rarely use multiwall carbon nanotubes (MWCNTs) but instead use polymeric matrices filled with hydroxyapatite, calcium phosphates and bioactive glasses. In this study, we prepared composites of MWCNTs/polycaprolactone (PCL) for bone regeneration as follows: (a) MWCNTs randomly dispersed on PCL, (b) MWCNTs aligned with an electrical field to determine if the orientation favors the growing of human dental pulp stem cells (HDPSCs), and (c) MWCNTs modified with β-glycerol phosphate (BGP) to analyze its osteogenic potential. Raman spectroscopy confirmed the presence of MWCNTs and BGP on PCL, whereas the increase in crystallinity by the addition of MWCNTs to PCL was confirmed by X-ray diffraction and differential scanning calorimetry. A higher elastic modulus (608 ± 4.3 MPa), maximum stress (42 ± 6.1 MPa) and electrical conductivity (1.67 × 10(-7) S/m) were observed in non-aligned MWCNTs compared with the pristine PCL. Cell viability at 14 days was similar in all samples according to the live/dead assay, but the 21 day cell proliferation, measured by MTT was higher in MWCNTs aligned with BGP. Von Kossa and Alizarin red showed larger amounts of mineral deposits on MWCNTs aligned with BGP, indicating that at 21 days, this scaffold promotes osteogenic differentiation of HDPSCs.
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Affiliation(s)
- M L Flores-Cedillo
- Facultad de Estomatología, Laboratorio de Ciencias Básicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - K N Alvarado-Estrada
- Facultad de Estomatología, Laboratorio de Ciencias Básicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - A J Pozos-Guillén
- Facultad de Estomatología, Laboratorio de Ciencias Básicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - J S Murguía-Ibarra
- Facultad de Ciencias, Departamento de Electrónica, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - M A Vidal
- Centro de Aplicación de Radiación Infrarroja, Energías Alternativas y Materiales, CIACYT, San Luis Potosí, Mexico
| | - J M Cervantes-Uc
- Centro de Investigación Científica de Yucatán, Unidad de Materiales, Mérida, Yucatán, Mexico
| | - R Rosales-Ibáñez
- Facultad de Estomatología, Laboratorio de Ciencias Básicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - J V Cauich-Rodríguez
- Centro de Investigación Científica de Yucatán, Unidad de Materiales, Mérida, Yucatán, Mexico.
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AKTAŞ SH, AKBULUT H, ELÇİN AE, PARMAKSIZ M, KESKİN AA, ÇÖLERİ CİHAN A, ELÇİN YM, İÇLİ F. Baculoviral vector loaded mesenchymal stem cells as efficient gene therapy tools for cancer treatment. Turk J Biol 2016. [DOI: 10.3906/biy-1601-76] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Font Tellado S, Balmayor ER, Van Griensven M. Strategies to engineer tendon/ligament-to-bone interface: Biomaterials, cells and growth factors. Adv Drug Deliv Rev 2015; 94:126-40. [PMID: 25777059 DOI: 10.1016/j.addr.2015.03.004] [Citation(s) in RCA: 166] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 02/27/2015] [Accepted: 03/07/2015] [Indexed: 02/06/2023]
Abstract
Integration between tendon/ligament and bone occurs through a specialized tissue interface called enthesis. The complex and heterogeneous structure of the enthesis is essential to ensure smooth mechanical stress transfer between bone and soft tissues. Following injury, the interface is not regenerated, resulting in high rupture recurrence rates. Tissue engineering is a promising strategy for the regeneration of a functional enthesis. However, the complex structural and cellular composition of the native interface makes enthesis tissue engineering particularly challenging. Thus, it is likely that a combination of biomaterials and cells stimulated with appropriate biochemical and mechanical cues will be needed. The objective of this review is to describe the current state-of-the-art, challenges and future directions in the field of enthesis tissue engineering focusing on four key parameters: (1) scaffold and biomaterials, (2) cells, (3) growth factors and (4) mechanical stimuli.
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Affiliation(s)
- Sonia Font Tellado
- Department of Experimental Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Strasse 22, 81675 Munich, Germany.
| | - Elizabeth R Balmayor
- Department of Experimental Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Martijn Van Griensven
- Department of Experimental Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Strasse 22, 81675 Munich, Germany
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Şeker Ş, Elçin AE, Elçin YM. Real-time monitoring of mesenchymal stem cell responses to biomaterial surfaces and to a model drug by using quartz crystal microbalance. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:1722-32. [DOI: 10.3109/21691401.2015.1089255] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Parmaksiz M, Elcin AE, Elcin YM. Decellularization of bovine small intestinal submucosa and its use for the healing of a critical-sized full-thickness skin defect, alone and in combination with stem cells, in a small rodent model. J Tissue Eng Regen Med 2015; 11:1754-1765. [DOI: 10.1002/term.2071] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Revised: 05/27/2015] [Accepted: 06/12/2015] [Indexed: 12/11/2022]
Affiliation(s)
- Mahmut Parmaksiz
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory; Ankara University Faculty of Science and Ankara University Stem Cell Institute; Ankara Turkey
| | - A. Eser Elcin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory; Ankara University Faculty of Science and Ankara University Stem Cell Institute; Ankara Turkey
| | - Y. Murat Elcin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory; Ankara University Faculty of Science and Ankara University Stem Cell Institute; Ankara Turkey
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Koç A, Elçin AE, Elçin YM. Ectopic osteogenic tissue formation by MC3T3-E1 cell-laden chitosan/hydroxyapatite composite scaffold. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:1440-7. [DOI: 10.3109/21691401.2015.1036998] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Aysel Koç
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
| | - Ayşe Eser Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
| | - Yaşar Murat Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
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Electrospinning of Bioinspired Polymer Scaffolds. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 881:33-53. [DOI: 10.1007/978-3-319-22345-2_3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Abstract
The primary goals of craniofacial reconstruction include the restoration of the form, function, and facial esthetics, and in the case of pediatric patients, respect for craniofacial growth. The surgeon, however, faces several challenges when attempting a reconstructive cranioplasty. For that reason, craniofacial defect repair often requires sophisticated treatment strategies and multidisciplinary input. In the ideal situation, autologous tissue similar in structure and function to that which is missing can be utilized for repair. In the context of the craniofacial skeleton, autologous cranial bone, or secondarily rib, iliac crest, or scapular bone, is most favorable. Often, this option is limited by the finite supply of available bone. Therefore, alternative strategies to repair craniofacial defects are necessary. In the field of regenerative medicine, tissue engineering has emerged as a promising concept, and several methods of bone engineering are currently under investigation. A growth factor-based approach utilizing bone morphogenetic proteins (BMPs) has demonstrated stimulatory effects on cranial bone and defect repair. When combined with cell-based and matrix-based models, regenerative goals can be optimized. This manuscript intends to review recent investigations of tissue engineering models used for the repair of craniofacial defects with a focus on the role of BMPs, scaffold materials, and novel cell lines. When sufficient autologous bone is not available, safe and effective strategies to engineer bone would allow the surgeon to meet the reconstructive goals of the craniofacial skeleton.
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Affiliation(s)
- Chad M. Teven
- Department of Surgery, Section of Plastic and Reconstructive Surgery, University of Chicago Medical Center, Chicago, IL, USA
| | - Sean Fisher
- Department of Surgery, Section of Plastic and Reconstructive Surgery, University of Chicago Medical Center, Chicago, IL, USA
| | - Guillermo A. Ameer
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA
| | - Tong-Chuan He
- Department of Orthopedic Surgery, University of Chicago Medical Center, Chicago, IL, USA
| | - Russell R. Reid
- Department of Surgery, Section of Plastic and Reconstructive Surgery, University of Chicago Medical Center, Chicago, IL, USA
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