51
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Bio - Conductive Scaffold Based on Agarose - Polyaniline for Tissue Engineering. ACTA ACUST UNITED AC 2017. [DOI: 10.5812/jssc.67394] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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52
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Shoaib M, Saeed A, Akhtar J, Rahman MSU, Ullah A, Jurkschat K, Naseer MM. Potassium-doped mesoporous bioactive glass: Synthesis, characterization and evaluation of biomedical properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:836-844. [DOI: 10.1016/j.msec.2017.02.090] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/16/2017] [Accepted: 02/17/2017] [Indexed: 01/16/2023]
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53
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Yin A, Luo R, Li J, Mo X, Wang Y, Zhang X. Coaxial electrospinning multicomponent functional controlled-release vascular graft: Optimization of graft properties. Colloids Surf B Biointerfaces 2017; 152:432-439. [DOI: 10.1016/j.colsurfb.2017.01.045] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 01/20/2017] [Accepted: 01/24/2017] [Indexed: 11/29/2022]
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54
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Wu RX, Yin Y, He XT, Li X, Chen FM. Engineering a Cell Home for Stem Cell Homing and Accommodation. ACTA ACUST UNITED AC 2017; 1:e1700004. [PMID: 32646164 DOI: 10.1002/adbi.201700004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 02/27/2017] [Indexed: 12/14/2022]
Abstract
Distilling complexity to advance regenerative medicine from laboratory animals to humans, in situ regeneration will continue to evolve using biomaterial strategies to drive endogenous cells within the human body for therapeutic purposes; this approach avoids the need for delivering ex vivo-expanded cellular materials. Ensuring the recruitment of a significant number of reparative cells from an endogenous source to the site of interest is the first step toward achieving success. Subsequently, making the "cell home" cell-friendly by recapitulating the natural extracellular matrix (ECM) in terms of its chemistry, structure, dynamics, and function, and targeting specific aspects of the native stem cell niche (e.g., cell-ECM and cell-cell interactions) to program and steer the fates of those recruited stem cells play equally crucial roles in yielding a therapeutically regenerative solution. This review addresses the key aspects of material-guided cell homing and the engineering of novel biomaterials with desirable ECM composition, surface topography, biochemistry, and mechanical properties that can present both biochemical and physical cues required for in situ tissue regeneration. This growing body of knowledge will likely become a design basis for the development of regenerative biomaterials for, but not limited to, future in situ tissue engineering and regeneration.
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Affiliation(s)
- Rui-Xin Wu
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Yuan Yin
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Xiao-Tao He
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Xuan Li
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
| | - Fa-Ming Chen
- State Key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P. R. China.,National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
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55
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Mohammadi Amirabad L, Massumi M, Shamsara M, Shabani I, Amari A, Mossahebi Mohammadi M, Hosseinzadeh S, Vakilian S, Steinbach SK, Khorramizadeh MR, Soleimani M, Barzin J. Enhanced Cardiac Differentiation of Human Cardiovascular Disease Patient-Specific Induced Pluripotent Stem Cells by Applying Unidirectional Electrical Pulses Using Aligned Electroactive Nanofibrous Scaffolds. ACS APPLIED MATERIALS & INTERFACES 2017; 9:6849-6864. [PMID: 28116894 DOI: 10.1021/acsami.6b15271] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In the embryonic heart, electrical impulses propagate in a unidirectional manner from the sinus venosus and appear to be involved in cardiogenesis. In this work, aligned and random polyaniline/polyetersulfone (PANI/PES) nanofibrous scaffolds doped by Camphor-10-sulfonic acid (β) (CPSA) were fabricated via electrospinning and used to conduct electrical impulses in a unidirectional and multidirectional fashion, respectively. A bioreactor was subsequently engineered to apply electrical impulses to cells cultured on PANI/PES scaffolds. We established cardiovascular disease-specific induced pluripotent stem cells (CVD-iPSCs) from the fibroblasts of patients undergoing cardiothoracic surgeries. The CVD-iPSCs were seeded onto the scaffolds, cultured in cardiomyocyte-inducing factors, and exposed to electrical impulses for 1 h/day, over a 15-day time period in the bioreactor. The application of the unidirectional electrical stimulation to the cells significantly increased the number of cardiac Troponin T (cTnT+) cells in comparison to multidirectional electrical stimulation using random fibrous scaffolds. This was confirmed by real-time polymerase chain reaction for cardiac-related transcription factors (NKX2.5, GATA4, and NPPA) and a cardiac-specific structural gene (TNNT2). Here we report for the first time that applying electrical pulses in a unidirectional manner mimicking the unidirectional wave of electrical stimulation in the heart, could increase the derivation of cardiomyocytes from CVD-iPSCs.
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Affiliation(s)
- Leila Mohammadi Amirabad
- Stem Cells Department, National Institute of Genetic Engineering and Biotechnology , Tehran, Iran
- School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Mohammad Massumi
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital , Toronto, Ontario M5T 3H7, Canada
- Department of Physiology, University of Toronto , Toronto, Ontario M5S 1A8, Canada
| | - Mehdi Shamsara
- Stem Cells Department, National Institute of Genetic Engineering and Biotechnology , Tehran, Iran
| | - Iman Shabani
- Biomedical Engineering Department, Amirkabir University of Technology , Tehran, Iran
| | - Afshin Amari
- Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz 61357-15794, Iran
| | | | - Simzar Hosseinzadeh
- School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Saeid Vakilian
- Stem Cells Biology Department, Stem Cell Technology Research Center , Tehran, Iran
| | - Sarah K Steinbach
- McEwen Centre for Regenerative Medicine, Toronto, Ontario M5G 1L7, Canada
| | - Mohammad R Khorramizadeh
- Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences , Tehran, Iran
| | - Masoud Soleimani
- Stem Cells Biology Department, Stem Cell Technology Research Center , Tehran, Iran
| | - Jalal Barzin
- Biomaterials Department, Iran Polymer and Petrochemical Institute , Tehran, Iran
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56
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Dong SL, Han L, Du CX, Wang XY, Li LH, Wei Y. 3D Printing of Aniline Tetramer-Grafted-Polyethylenimine and Pluronic F127 Composites for Electroactive Scaffolds. Macromol Rapid Commun 2017; 38. [PMID: 28045217 DOI: 10.1002/marc.201600551] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 10/31/2016] [Indexed: 11/09/2022]
Abstract
Electroactive hydrogel scaffolds are fabricated by the 3D-printing technique using composites of 30% Pluronic F127 and aniline tetramer-grafted-polyethylenimine (AT-PEI) copolymers with various contents from 2.5% to 10%. The synthesized AT-PEI copolymers can self-assemble into nanoparticles with the diameter of ≈50 nm and display excellent electroactivity due to AT conjugation. The copolymers are then homogeneously distributed into 30% Pluronic F127 solution by virtue of the thermosensitivity of F127, denoted as F/AT-PEI composites. Macroscopic photographs of latticed scaffolds elucidate their excellent printability of F/AT-PEI hydrogels for the 3D-printing technique. The conductivities of the printed F/AT-PEI scaffolds are all higher than 2.0 × 10-3 S cm-1 , which are significantly improved compared with that of F127 scaffold with only 0.94 × 10-3 S cm-1 . Thus, the F/AT-PEI scaffolds can be considered as candidates for application in electrical stimulation of tissue regeneration such as repair of muscle and cardiac nerve tissue.
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Affiliation(s)
- Shi-Lei Dong
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, 102600, China
| | - Lu Han
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, 102600, China
| | - Cai-Xia Du
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, 102600, China
| | - Xiao-Yu Wang
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, 102600, China
| | - Lu-Hai Li
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, 102600, China
| | - Yen Wei
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, 102600, China.,Department of Chemistry and Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084, China
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57
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Regulation of the secretion of immunoregulatory factors of mesenchymal stem cells (MSCs) by collagen-based scaffolds during chondrogenesis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 70:983-991. [DOI: 10.1016/j.msec.2016.04.096] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 04/05/2016] [Accepted: 04/28/2016] [Indexed: 12/12/2022]
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58
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Liu FZ, Wang DW, Zhang YJ, Lv ZY, Sun XD, Li KY, Zhang B, Wang XM, Cui FZ. Comparison of rabbit rib defect regeneration with and without graft. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:2. [PMID: 27866345 PMCID: PMC5116313 DOI: 10.1007/s10856-016-5807-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 11/01/2016] [Indexed: 06/06/2023]
Abstract
Rib segment, as one of the most widely used autologous boneresources for bone repair, is commonly isolated with an empty left in the defect. Although defective rib repair is thought to be unnecessary traditionally, it's of vital importance actually to promote rib regeneration for patients with better postoperative recovery and higher life quality. Comparative investigations on rabbit rib bone regeneration with and without graft were reported in this article. A segmental defect was performed on the 8th rib of 4-month-old male New Zealand rabbits. The mineralized collagen bone graft (MC) was implanted into the defect and evaluated for up to 12 weeks. The rib bone repair was investigated by using X-ray at 4, 8 and 12 weeks and histological examinations at 12 weeks after surgery, which showed a higher bone remodeling activity in the groups with MC implantation in comparison with blank control group, especially at the early stage of remodeling.
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Affiliation(s)
- Feng-Zhen Liu
- Liaocheng People’s Hospital, Medical College of Liaocheng University, ShanDong, 252000 China
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084 China
| | - Da-Wei Wang
- Liaocheng People’s Hospital, Medical College of Liaocheng University, ShanDong, 252000 China
| | - Yu-Jue Zhang
- Liaocheng People’s Hospital, Medical College of Liaocheng University, ShanDong, 252000 China
| | - Zhao Yong Lv
- Liaocheng People’s Hospital, Medical College of Liaocheng University, ShanDong, 252000 China
| | - Xiao-Dan Sun
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084 China
| | - Ke-Yi Li
- Liaocheng People’s Hospital, Medical College of Liaocheng University, ShanDong, 252000 China
| | - Bin Zhang
- Liaocheng People’s Hospital, Medical College of Liaocheng University, ShanDong, 252000 China
| | - Xiu-Mei Wang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084 China
| | - Fu-Zhai Cui
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084 China
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59
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Patntirapong S, Janvikul W, Theerathanagorn T, Singhatanadgit W. Osteoinduction of stem cells by collagen peptide-immobilized hydrolyzed poly(butylene succinate)/β-tricalcium phosphate scaffold for bone tissue engineering. J Biomater Appl 2016; 31:859-870. [DOI: 10.1177/0885328216684374] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bone substitute is a therapeutic approach to treat bone abnormalities. A scaffold serves mainly as osteoconductive elements. To facilitate a better biological performance, short collagen peptide was immobilized onto hydrolyzed poly(butylene succinate)/β-tricalcium phosphate (HPBSu/TCP) scaffolds. PBSu/TCP (80:20) scaffolds were fabricated by a supercritical CO2 technique, hydrolyzed with 0.6 M NaOH and conjugated with short collagen peptide tagged with or without red fluorescence. The surface morphology and porous structure of scaffolds were characterized by scanning electron microscopy and micro-computed tomography. Human mesenchymal stem cells were cultured onto the scaffolds and examined for osteogenic differentiation and biomineralization in vitro by means of alkaline phosphatase activity, alizarin red staining, and reverse transcription-polymerase chain reaction. The PBSu/TCP and HPBSu/TCP scaffolds were successfully prepared. Scanning electron microscopy and micro-computed tomography results showed that the porosity was distributed throughout the scaffolds with the pore sizes in the range of 250–900 µm. Fluorescence microscopy demonstrated retention of tagged short collagen peptide on the scaffold. Mesenchymal stem cells adhered and grew well on the material. Under osteogenic induction, cells cultured on the short collagen peptide -immobilized scaffold significantly produced a greater amount of alkaline phosphatase activity and positive mineralization than those cultured on the control scaffold. The present results have shown that the short collagen peptide-immobilized HPBSu/TCP scaffold enhanced osteoinduction and biomineralization of stem cell-derived osteoblasts, possibly via stimulation of alkaline phosphatase activity. This suggests the potential use of osteogenic peptide-immobilized material in bone tissue engineering for correcting bone defects.
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Affiliation(s)
| | - Wanida Janvikul
- National Metal and Materials Technology Center, Pathumthani, Thailand
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60
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Kesireddy V, Kasper FK. Approaches for building bioactive elements into synthetic scaffolds for bone tissue engineering. J Mater Chem B 2016; 4:6773-6786. [PMID: 28133536 PMCID: PMC5267491 DOI: 10.1039/c6tb00783j] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Bone tissue engineering (BTE) is emerging as a possible solution for regeneration of bone in a number of applications. For effective utilization, BTE scaffolds often need modifications to impart biological cues that drive diverse cellular functions such as adhesion, migration, survival, proliferation, differentiation, and biomineralization. This review provides an outline of various approaches for building bioactive elements into synthetic scaffolds for BTE and classifies them broadly under two distinct schemes; namely, the top-down approach and the bottom-up approach. Synthetic and natural routes for top-down approaches to production of bioactive constructs for BTE, such as generation of scaffold-extracellular matrix (ECM) hybrid constructs or decellularized and demineralized scaffolds, are provided. Similarly, traditional scaffold-based bottom-up approaches, including growth factor immobilization or peptide-tethered scaffolds, are provided. Finally, a brief overview of emerging bottom-up approaches for generating biologically active constructs for BTE is given. A discussion of the key areas for further investigation, challenges, and opportunities is also presented.
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Affiliation(s)
- Venu Kesireddy
- Department of Orthodontics, The University of Texas Health Science Center at Houston, School of Dentistry
| | - F. Kurtis Kasper
- Department of Orthodontics, The University of Texas Health Science Center at Houston, School of Dentistry
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61
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Zhang J, Liu H, Ding JX, Wu J, Zhuang XL, Chen XS, Wang JC, Yin JB, Li ZM. High-Pressure Compression-Molded Porous Resorbable Polymer/Hydroxyapatite Composite Scaffold for Cranial Bone Regeneration. ACS Biomater Sci Eng 2016; 2:1471-1482. [DOI: 10.1021/acsbiomaterials.6b00202] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jin Zhang
- College
of Polymer Science and Engineering, State Key Laboratory of Polymer
Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, P. R. China
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - He Liu
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- Department
of Orthopedics, Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Jian-Xun Ding
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Jie Wu
- Department
of Polymer Materials, Shanghai University, Shanghai 200444, P. R. China
| | - Xiu-Li Zhuang
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Xue-Si Chen
- Key
Laboratory of Polymer Ecomaterials, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Jin-Cheng Wang
- Department
of Orthopedics, Second Hospital of Jilin University, Changchun 130041, P. R. China
| | - Jing-Bo Yin
- Department
of Polymer Materials, Shanghai University, Shanghai 200444, P. R. China
| | - Zhong-Ming Li
- College
of Polymer Science and Engineering, State Key Laboratory of Polymer
Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, P. R. China
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62
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Kumar A, Nune KC, Misra RDK. Biological functionality and mechanistic contribution of extracellular matrix-ornamented three dimensional Ti-6Al-4V mesh scaffolds. J Biomed Mater Res A 2016; 104:2751-63. [PMID: 27325185 DOI: 10.1002/jbm.a.35809] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 05/24/2016] [Accepted: 06/16/2016] [Indexed: 12/24/2022]
Abstract
The 3D printed metallic implants are considered bioinert in nature because of the absence of bioactive molecules. Thus, surface modification of bioinert materials is expected to favorably promote osteoblast functions and differentiation. In this context, the objective of this study is to fundamentally elucidate the effect of cell-derived decellularized extracellular matrix (dECM) ornamented 3D printed Ti-6Al-4V scaffolds on biological functions, involving cell adhesion, proliferation, and synthesis of vinculin and actin proteins. To mimic the natural ECM environment, the mineralized ECM of osteoblasts was deposited on the Ti-6Al-4V porous scaffolds, fabricated by electron beam melting (EBM) method. The process comprised of osteoblast proliferation, differentiation, and freeze-thaw cycles to obtain decellularized extra cellular matrix (dECM), in vitro. The dECM provided a natural environment to restore the natural cell functionality of osteoblasts that were cultured on dECM ornamented Ti-6Al-4V scaffolds. In comparison to the bare Ti-6Al-4V scaffolds, a higher cell functionality such as cell adhesion, proliferation, and growth including cell-cell and cell-material interaction were observed on dECM ornamented Ti-6Al-4V scaffolds, which were characterized by using markers for focal adhesion and cytoskeleton such as vinculin and actin. Moreover, electron microscopy also indicated higher cell-material interaction and enhanced proliferation of cells on dECM ornamented Ti-6Al-4V scaffolds, supported by MTT assay. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 2751-2763, 2016.
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Affiliation(s)
- A Kumar
- Biomaterials and Biomedical Engineering Research Laboratory, Department of Metallurgical, Materials, and Biomedical Engineering, 500 W. University Avenue, University of Texas at El Paso, El Paso, Texas, 79968, USA
| | - K C Nune
- Biomaterials and Biomedical Engineering Research Laboratory, Department of Metallurgical, Materials, and Biomedical Engineering, 500 W. University Avenue, University of Texas at El Paso, El Paso, Texas, 79968, USA
| | - R D K Misra
- Biomaterials and Biomedical Engineering Research Laboratory, Department of Metallurgical, Materials, and Biomedical Engineering, 500 W. University Avenue, University of Texas at El Paso, El Paso, Texas, 79968, USA.
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63
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Adverse Biological Effect of TiO₂ and Hydroxyapatite Nanoparticles Used in Bone Repair and Replacement. Int J Mol Sci 2016; 17:ijms17060798. [PMID: 27231896 PMCID: PMC4926332 DOI: 10.3390/ijms17060798] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 05/06/2016] [Accepted: 05/19/2016] [Indexed: 12/18/2022] Open
Abstract
The adverse biological effect of nanoparticles is an unavoidable scientific problem because of their small size and high surface activity. In this review, we focus on nano-hydroxyapatite and TiO₂ nanoparticles (NPs) to clarify the potential systemic toxicological effect and cytotoxic response of wear nanoparticles because they are attractive materials for bone implants and are widely investigated to promote the repair and reconstruction of bone. The wear nanoparticles would be prone to binding with proteins to form protein-particle complexes, to interacting with visible components in the blood including erythrocytes, leukocytes, and platelets, and to being phagocytosed by macrophages or fibroblasts to deposit in the local tissue, leading to the formation of fibrous local pseudocapsules. These particles would also be translocated to and disseminated into the main organs such as the lung, liver and spleen via blood circulation. The inflammatory response, oxidative stress, and signaling pathway are elaborated to analyze the potential toxicological mechanism. Inhibition of the oxidative stress response and signaling transduction may be a new therapeutic strategy for wear debris-mediated osteolysis. Developing biomimetic materials with better biocompatibility is our goal for orthopedic implants.
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64
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Wu C, Xia L, Han P, Mao L, Wang J, Zhai D, Fang B, Chang J, Xiao Y. Europium-Containing Mesoporous Bioactive Glass Scaffolds for Stimulating in Vitro and in Vivo Osteogenesis. ACS APPLIED MATERIALS & INTERFACES 2016; 8:11342-11354. [PMID: 27096527 DOI: 10.1021/acsami.6b03100] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Bone tissue engineering offers a possible strategy for regenerating large bone defects, in which how to design beneficial scaffolds for accelerating bone formation remains significantly challenging. Europium, as an important rare earth element, has been used as a solid-state lighting material. However, there are few reports on whether Eu can be used for labeling bone tissue engineering scaffolds, and its biological effect on bone cells and bone tissue regeneration is unknown. In this study, we incorporated Eu into mesoporous bioactive glass (Eu-MBG) scaffolds by an in situ cotemplate method to achieve a bifunctional biomaterial with biolabeling and bone regeneration. The prepared Eu-MBG scaffolds have highly interconnective large pores (300-500 μm), a high specific surface area (140-290 m(2)/g), and well-ordered mesopores (5 nm) as well as uniformly distributed Eu. The incorporation of 2-5 mol % Eu into MBG scaffolds gives them a luminescent property. The in vitro degradation of Eu-MBG scaffolds has a functional effect on the change of the luminescence intensity. In addition, Eu-MBG can be used for labeling bone marrow stromal cells (BMSCs) in vitro and still presents a distinct luminescence signal in deep bone tissues in vivo to label new bone tissue via release of Eu ions. Furthermore, the incorporation of different contents of Eu (1, 2, and 5 mol %) into MBG scaffolds significantly enhances the osteogenic gene expression of BMSCs in the scaffolds. The Eu- and Si-containing ionic products released from Eu-MBG scaffolds distinctly promote the osteogenic differentiation of BMSCs. Critically sized femur defects in ovariectomized (OVX) rats are created to simulate an osteoporotic phenotype. The results show that Eu-MBG scaffolds significantly stimulate new bone formation in osteoporotic bone defects when compared to MBG scaffolds alone and Eu may be involved in the acceleration of bone regeneration in OVX rats. Our study for the first time reports that the incorporation of the rare earth element Eu into bioscaffolds has the ability to accelerate bone regeneration in vivo, and thus, the prepared Eu-MBG scaffolds possess bifunctional properties with biolabeling and bone regeneration.
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Affiliation(s)
- Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
| | - Lunguo Xia
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai 200011, People's Republic of China
| | - Pingping Han
- Institute of Health & Biomedical Innovation, Queensland University of Technology , Brisbane, Queensland 4059, Australia
| | - Lixia Mao
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai 200011, People's Republic of China
| | - Jiacheng Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
| | - Dong Zhai
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
| | - Bing Fang
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai 200011, People's Republic of China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
| | - Yin Xiao
- Institute of Health & Biomedical Innovation, Queensland University of Technology , Brisbane, Queensland 4059, Australia
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65
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Asadi-Eydivand M, Solati-Hashjin M, Shafiei SS, Mohammadi S, Hafezi M, Abu Osman NA. Structure, Properties, and In Vitro Behavior of Heat-Treated Calcium Sulfate Scaffolds Fabricated by 3D Printing. PLoS One 2016; 11:e0151216. [PMID: 26999789 PMCID: PMC4801367 DOI: 10.1371/journal.pone.0151216] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Accepted: 02/23/2016] [Indexed: 01/01/2023] Open
Abstract
The ability of inkjet-based 3D printing (3DP) to fabricate biocompatible ceramics has made it one of the most favorable techniques to generate bone tissue engineering (BTE) scaffolds. Calcium sulfates exhibit various beneficial characteristics, and they can be used as a promising biomaterial in BTE. However, low mechanical performance caused by the brittle character of ceramic materials is the main weakness of 3DP calcium sulfate scaffolds. Moreover, the presence of certain organic matters in the starting powder and binder solution causes products to have high toxicity levels. A post-processing treatment is usually employed to improve the physical, chemical, and biological behaviors of the printed scaffolds. In this study, the effects of heat treatment on the structural, mechanical, and physical characteristics of 3DP calcium sulfate prototypes were investigated. Different microscopy and spectroscopy methods were employed to characterize the printed prototypes. The in vitro cytotoxicity of the specimens was also evaluated before and after heat treatment. Results showed that the as-printed scaffolds and specimens heat treated at 300°C exhibited severe toxicity in vitro but had almost adequate strength. By contrast, the specimens heat treated in the 500°C-1000°C temperature range, although non-toxic, had insufficient mechanical strength, which was mainly attributed to the exit of the organic binder before 500°C and the absence of sufficient densification below 1000°C. The sintering process was accelerated at temperatures higher than 1000°C, resulting in higher compressive strength and less cytotoxicity. An anhydrous form of calcium sulfate was the only crystalline phase existing in the samples heated at 500°C-1150°C. The formation of calcium oxide caused by partial decomposition of calcium sulfate was observed in the specimens heat treated at temperatures higher than 1200°C. Although considerable improvements in cell viability of heat-treated scaffolds were observed in this study, the mechanical properties were not significantly improved, requiring further investigations. However, the findings of this study give a better insight into the complex nature of the problem in the fabrication of synthetic bone grafts and scaffolds via post-fabrication treatment of 3DP calcium sulfate prototypes.
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Affiliation(s)
- Mitra Asadi-Eydivand
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Mehran Solati-Hashjin
- Biomedical Engineering Faculty, Amirkabir University of Technology, 15914, Tehran, Iran
- Biomaterials Center of Excellence, Amirkabir University of Technology, 15914, Tehran, Iran
- * E-mail: (MS-H); (NAAO)
| | - Seyedeh Sara Shafiei
- Stem Cell and Regenerative Medicine Group, National Institute of Genetic Engineering and Biotechnology, Tehran, 14965/161, Iran
| | - Sepideh Mohammadi
- Biomedical Engineering Faculty, Amirkabir University of Technology, 15914, Tehran, Iran
| | - Masoud Hafezi
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Noor Azuan Abu Osman
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
- * E-mail: (MS-H); (NAAO)
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66
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Microtissues in Cardiovascular Medicine: Regenerative Potential Based on a 3D Microenvironment. Stem Cells Int 2016; 2016:9098523. [PMID: 27073399 PMCID: PMC4814701 DOI: 10.1155/2016/9098523] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 02/01/2016] [Accepted: 02/21/2016] [Indexed: 02/06/2023] Open
Abstract
More people die annually from cardiovascular diseases than from any other cause. In particular, patients who suffer from myocardial infarction may be affected by ongoing adverse remodeling processes of the heart that may ultimately lead to heart failure. The introduction of stem and progenitor cell-based applications has raised substantial hope for reversing these processes and inducing cardiac regeneration. However, current stem cell therapies using single-cell suspensions have failed to demonstrate long-lasting efficacy due to the overall low retention rate after cell delivery to the myocardium. To overcome this obstacle, the concept of 3D cell culture techniques has been proposed to enhance therapeutic efficacy and cell engraftment based on the simulation of an in vivo-like microenvironment. Of great interest is the use of so-called microtissues or spheroids, which have evolved from their traditional role as in vitro models to their novel role as therapeutic agents. This review will provide an overview of the therapeutic potential of microtissues by addressing primarily cardiovascular regeneration. It will accentuate their advantages compared to other regenerative approaches and summarize the methods for generating clinically applicable microtissues. In addition, this review will illustrate the unique properties of the microenvironment within microtissues that makes them a promising next-generation therapeutic approach.
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67
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Current Advance and Future Prospects of Tissue Engineering Approach to Dentin/Pulp Regenerative Therapy. Stem Cells Int 2016; 2016:9204574. [PMID: 27069484 PMCID: PMC4812497 DOI: 10.1155/2016/9204574] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 01/25/2016] [Accepted: 02/17/2016] [Indexed: 01/09/2023] Open
Abstract
Recent advances in biomaterial science and tissue engineering technology have greatly spurred the development of regenerative endodontics. This has led to a paradigm shift in endodontic treatment from simply filling the root canal systems with biologically inert materials to restoring the infected dental pulp with functional replacement tissues. Currently, cell transplantation has gained increasing attention as a scientifically valid method for dentin-pulp complex regeneration. This multidisciplinary approach which involves the interplay of three key elements of tissue engineering—stem cells, scaffolds, and signaling molecules—has produced an impressive number of favorable outcomes in preclinical animal studies. Nevertheless, many practical hurdles need to be overcome prior to its application in clinical settings. Apart from the potential health risks of immunological rejection and pathogenic transmission, the lack of a well-established banking system for the isolation and storage of dental-derived stem cells is the most pressing issue that awaits resolution and the properties of supportive scaffold materials vary across different studies and remain inconsistent. This review critically examines the classic triad of tissue engineering utilized in current regenerative endodontics and summarizes the possible techniques developed for dentin/pulp regeneration.
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Jayaraman P, Gandhimathi C, Venugopal JR, Ramakrishna S, Srinivasan DK. Minocycline Hydrochloride Entrapped Biomimetic Nanofibrous Substitutes for Adipose-Derived Stem Cells Differentiation into Osteogenesis. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2016. [DOI: 10.1007/s40883-016-0010-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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69
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Ortiz M, Rosales-Ibáñez R, Pozos-Guillén A, De Bien C, Toye D, Flores H, Grandfils C. DPSC colonization of functionalized 3D textiles. J Biomed Mater Res B Appl Biomater 2016; 105:785-794. [DOI: 10.1002/jbm.b.33609] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 10/14/2015] [Accepted: 12/08/2015] [Indexed: 12/26/2022]
Affiliation(s)
- Marine Ortiz
- Institutional Doctorate in Engineering and Science Materials, Universidad Autónoma de San Luis Potosí; S.L.P. Mexico
- Laboratory of Basic Science, Faculty of Dentistry, Universidad Autónoma de San Luis Potosí; S.L.P. Mexico
| | - Raúl Rosales-Ibáñez
- Laboratory of Basic Science, Faculty of Dentistry, Universidad Autónoma de San Luis Potosí; S.L.P. Mexico
| | - Amaury Pozos-Guillén
- Institutional Doctorate in Engineering and Science Materials, Universidad Autónoma de San Luis Potosí; S.L.P. Mexico
- Laboratory of Basic Science, Faculty of Dentistry, Universidad Autónoma de San Luis Potosí; S.L.P. Mexico
| | - Charlotte De Bien
- Laboratoire de Génie chimique, University of Liège, Chemistry Institute; Liège Belgique
| | - Dominique Toye
- Laboratoire de Génie chimique, University of Liège, Chemistry Institute; Liège Belgique
| | - Héctor Flores
- Institutional Doctorate in Engineering and Science Materials, Universidad Autónoma de San Luis Potosí; S.L.P. Mexico
- Laboratory of Basic Science, Faculty of Dentistry, Universidad Autónoma de San Luis Potosí; S.L.P. Mexico
| | - Christian Grandfils
- Interfacultary Center of Biomaterials, Université de Liège, Chemistry Institute; Liège Belgique
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70
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Mawad D, Lauto A, Wallace GG. Conductive Polymer Hydrogels. POLYMERIC HYDROGELS AS SMART BIOMATERIALS 2016. [DOI: 10.1007/978-3-319-25322-0_2] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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71
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Wang Z, Zheng W, Wu Y, Wang J, Zhang X, Wang K, Zhao Q, Kong D, Ke T, Li C. Differences in the performance of PCL-based vascular grafts as abdominal aorta substitutes in healthy and diabetic rats. Biomater Sci 2016; 4:1485-92. [DOI: 10.1039/c6bm00178e] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Diabetes exacerbates the regeneration process after in vivo implantation of vascular graft.
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Huang P, Zhang Y, Wang W, Zhou J, Sun Y, Liu J, Kong D, Liu J, Dong A. Co-delivery of doxorubicin and 131I by thermosensitive micellar-hydrogel for enhanced in situ synergetic chemoradiotherapy. J Control Release 2015; 220:456-464. [DOI: 10.1016/j.jconrel.2015.11.007] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 10/13/2015] [Accepted: 11/07/2015] [Indexed: 01/27/2023]
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73
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Huang C, Qin L, Yan W, Weng X, Huang X. Clinical evaluation following the use of mineralized collagen graft for bone defects in revision total hip arthroplasty. Regen Biomater 2015; 2:245-9. [PMID: 26816647 PMCID: PMC4676328 DOI: 10.1093/rb/rbv022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 10/14/2015] [Accepted: 10/15/2015] [Indexed: 11/23/2022] Open
Abstract
Revision total hip arthroplasty (THA) with massive bone loss has been a real challenge for orthopaedic surgeons. Here we describe an approach using mineralized collagen (MC) graft to reconstruct acetabulum and femur with massive bone defects. We identified 89 patients suffering acetabular or femoral bone defects after primary THA, who required revision THA for this study. During the surgery, MC was applied to reconstruct both the acetabular and femoral defects. Harris hip score was used to evaluate hip function while radiographs were taken to estimate bone formation in the defect regions. The average follow-up period was 33.6 ± 2.4 months. None of the components needed re-revised. Mean Harris hip scores were 42.5 ± 3.5 before operation, 75.2 ± 4.0 at 10th month and 95.0 ± 3.6 at the final follow-up. There were no instances of deep infection, severe venous thrombosis or nerve palsy. The present study demonstrated that MC graft can serve as a promising option for revision THA with massive bone deficiency. Meanwhile, extended follow-up is needed to further prove its long-term performance.
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Affiliation(s)
- Cheng Huang
- Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China and
| | - Liwu Qin
- Department of Orthopaedics, Wendeng Orthopaedic Hospital of Shandong Province Affiliated to Shandong University of Traditional Chinese Medicine, Weihai 264400, China
| | - Wei Yan
- Department of Orthopaedics, Wendeng Orthopaedic Hospital of Shandong Province Affiliated to Shandong University of Traditional Chinese Medicine, Weihai 264400, China
| | - Xisheng Weng
- Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China and
| | - Xiangjie Huang
- Department of Orthopaedics, Wendeng Orthopaedic Hospital of Shandong Province Affiliated to Shandong University of Traditional Chinese Medicine, Weihai 264400, China
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74
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Song B, Wu C, Chang J. Ultrasound-triggered dual-drug release from poly(lactic-co-glycolic acid)/mesoporous silica nanoparticles electrospun composite fibers. Regen Biomater 2015; 2:229-37. [PMID: 26816645 PMCID: PMC4676330 DOI: 10.1093/rb/rbv019] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 08/31/2015] [Accepted: 09/10/2015] [Indexed: 01/23/2023] Open
Abstract
The aim of this study was to achieve on-demand controlled drug release from the dual-drug-loaded poly(lactic-co-glycolic acid)/mesoporous silica nanoparticles electrospun composite fibers by the application of ultrasound irradiation. Two drugs were loaded in different part of the composite fibrous materials, and it was found that ultrasound as an external stimulus was able to control release of drugs due to both its thermal effect and non-thermal effect. With the selective irradiation of ultrasound, the drug carrier enabled to realize controlled release, and because of different location in fibers and sensitivity of two different kinds of drugs to ultrasound irradiation, the release rate of two drugs was different. These results indicated that ultrasound irradiation was a facile method to realize the on-demand controlled release of two drugs from the electrospun fibers.
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Affiliation(s)
| | | | - Jiang Chang
- *Correspondence address. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, People’s Republic of China. Tel: +86 21 52412804; Fax: +86 21 52413903; E-mail:
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75
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Biodegradable Mineralized Collagen Plug for the Reconstruction of Craniotomy Burr-Holes: A Report of Three Cases. ACTA ACUST UNITED AC 2015. [DOI: 10.18679/cn11-6030_r.2015.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Objectives In this case report, we describe the design, fabrication and clinical outcomes of a novel bioresorbable, mineralized collagen burr-hole plug for the reconstruction of craniotomy burr-holes. Methods Mineralized collagen burr-hole plugs were fabricated via a biomimetic mineralization process. The biomimetic mineralized collagen has a similar chemical composition and microstructure to natural bone tissue, thereby possessing good biocompatibility and osteoconductivity. The mineralized collagen burr-hole plugs were implanted into three patients, and clinical outcomes were evaluated at one-year follow-ups. Results All bone defects healed very well using the mineralized collagen burr-hole plugs, and there were no adverse reactions at the surgical sites. Conclusions The clinical outcomes indicated that the mineralized collagen was effective for reconstructing burr-holes in the skull after craniotomy.
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76
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Biodegradable Materials for Bone Repair and Tissue Engineering Applications. MATERIALS 2015; 8:5744-5794. [PMID: 28793533 PMCID: PMC5512653 DOI: 10.3390/ma8095273] [Citation(s) in RCA: 354] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 08/09/2015] [Accepted: 08/24/2015] [Indexed: 12/21/2022]
Abstract
This review discusses and summarizes the recent developments and advances in the use of biodegradable materials for bone repair purposes. The choice between using degradable and non-degradable devices for orthopedic and maxillofacial applications must be carefully weighed. Traditional biodegradable devices for osteosynthesis have been successful in low or mild load bearing applications. However, continuing research and recent developments in the field of material science has resulted in development of biomaterials with improved strength and mechanical properties. For this purpose, biodegradable materials, including polymers, ceramics and magnesium alloys have attracted much attention for osteologic repair and applications. The next generation of biodegradable materials would benefit from recent knowledge gained regarding cell material interactions, with better control of interfacing between the material and the surrounding bone tissue. The next generations of biodegradable materials for bone repair and regeneration applications require better control of interfacing between the material and the surrounding bone tissue. Also, the mechanical properties and degradation/resorption profiles of these materials require further improvement to broaden their use and achieve better clinical results.
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77
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Qiu ZY, Cui Y, Tao CS, Zhang ZQ, Tang PF, Mao KY, Wang XM, Cui FZ. Mineralized Collagen: Rationale, Current Status, and Clinical Applications. MATERIALS 2015; 8:4733-4750. [PMID: 28793468 PMCID: PMC5455477 DOI: 10.3390/ma8084733] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 06/29/2015] [Accepted: 07/13/2015] [Indexed: 01/19/2023]
Abstract
This paper presents a review of the rationale for the in vitro mineralization process, preparation methods, and clinical applications of mineralized collagen. The rationale for natural mineralized collagen and the related mineralization process has been investigated for decades. Based on the understanding of natural mineralized collagen and its formation process, many attempts have been made to prepare biomimetic materials that resemble natural mineralized collagen in both composition and structure. To date, a number of bone substitute materials have been developed based on the principles of mineralized collagen, and some of them have been commercialized and approved by regulatory agencies. The clinical outcomes of mineralized collagen are of significance to advance the evaluation and improvement of related medical device products. Some representative clinical cases have been reported, and there are more clinical applications and long-term follow-ups that currently being performed by many research groups.
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Affiliation(s)
- Zhi-Ye Qiu
- School of Materials Science and Engineering, Tsinghua University, Haidian District, Beijing 100084, China.
- Beijing Allgens Medical Science and Technology Co., Ltd., No.1 Disheng East Road, Yizhuang Economic and Technological Development Zone, Beijing 100176, China.
| | - Yun Cui
- Beijing Allgens Medical Science and Technology Co., Ltd., No.1 Disheng East Road, Yizhuang Economic and Technological Development Zone, Beijing 100176, China.
| | - Chun-Sheng Tao
- School of Materials Science and Engineering, Tsinghua University, Haidian District, Beijing 100084, China.
- The 401 Hospital of Chinese People's Liberation Army, No. 22 Minjiang Road, Qingdao 266071, China.
| | - Zi-Qiang Zhang
- Beijing Allgens Medical Science and Technology Co., Ltd., No.1 Disheng East Road, Yizhuang Economic and Technological Development Zone, Beijing 100176, China.
| | - Pei-Fu Tang
- The General Hospital of People's Liberation Army, No. 28 Fuxing Road, Beijing 100853, China.
| | - Ke-Ya Mao
- The General Hospital of People's Liberation Army, No. 28 Fuxing Road, Beijing 100853, China.
| | - Xiu-Mei Wang
- School of Materials Science and Engineering, Tsinghua University, Haidian District, Beijing 100084, China.
| | - Fu-Zhai Cui
- School of Materials Science and Engineering, Tsinghua University, Haidian District, Beijing 100084, China.
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Zhu M, Wang Z, Zhang J, Wang L, Yang X, Chen J, Fan G, Ji S, Xing C, Wang K, Zhao Q, Zhu Y, Kong D, Wang L. Circumferentially aligned fibers guided functional neoartery regeneration in vivo. Biomaterials 2015; 61:85-94. [PMID: 26001073 DOI: 10.1016/j.biomaterials.2015.05.024] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 05/02/2015] [Accepted: 05/14/2015] [Indexed: 11/30/2022]
Abstract
An ideal vascular graft should have the ability to guide the regeneration of neovessels with structure and function similar to those of the native blood vessels. Regeneration of vascular smooth muscle cells (VSMCs) with circumferential orientation within the grafts is crucial for functional vascular reconstruction in vivo. To date, designing and fabricating a vascular graft with well-defined geometric cues to facilitate simultaneously VSMCs infiltration and their circumferential alignment remains a great challenge and scarcely reported in vivo. Thus, we have designed a bi-layered vascular graft, of which the internal layer is composed of circumferentially aligned microfibers prepared by wet-spinning and an external layer composed of random nanofibers prepared by electrospinning. While the internal circumferentially aligned microfibers provide topographic guidance for in vivo regeneration of circumferentially aligned VSMCs, the external random nanofibers can offer enhanced mechanical property and prevent bleeding during and after graft implantation. VSMCs infiltration and alignment within the scaffold was then evaluated in vitro and in vivo. Our results demonstrated that the circumferentially oriented VSMCs and longitudinally aligned ECs were successfully regenerated in vivo after the bi-layered vascular grafts were implanted in rat abdominal aorta. No formation of thrombosis or intimal hyperplasia was observed up to 3 month post implantation. Further, the regenerated neoartery exhibited contraction and relaxation property in response to vasoactive agents. This new strategy may bring cell-free small diameter vascular grafts closer to clinical application.
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Affiliation(s)
- Meifeng Zhu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Zhihong Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Jiamin Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Lina Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Xiaohu Yang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jingrui Chen
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Guanwei Fan
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shenglu Ji
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Cheng Xing
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Kai Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China; State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China
| | - Qiang Zhao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Yan Zhu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China.
| | - Lianyong Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China.
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Supramolecular cationic assemblies against multidrug-resistant microorganisms: activity and mechanism of action. Int J Mol Sci 2015; 16:6337-52. [PMID: 25809608 PMCID: PMC4394535 DOI: 10.3390/ijms16036337] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 03/12/2015] [Accepted: 03/16/2015] [Indexed: 11/30/2022] Open
Abstract
The growing challenge of antimicrobial resistance to antibiotics requires novel synthetic drugs or new formulations for old drugs. Here, cationic nanostructured particles (NPs) self-assembled from cationic bilayer fragments and polyelectrolytes are tested against four multidrug-resistant (MDR) strains of clinical importance. The non-hemolytic poly(diallyldimethylammonium) chloride (PDDA) polymer as the outer NP layer shows a remarkable activity against these organisms. The mechanism of cell death involves bacterial membrane lysis as determined from the leakage of inner phosphorylated compounds and possibly disassembly of the NP with the appearance of multilayered fibers made of the NP components and the biopolymers withdrawn from the cell wall. The NPs display broad-spectrum activity against MDR microorganisms, including Gram-negative and Gram-positive bacteria and yeast.
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