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Wei X, Zhang Z, Wang L, Yan L, Yan Y, Wang C, Peng H, Fan X. Enhancing osteoblast proliferation and bone regeneration by poly (amino acid)/selenium-doped hydroxyapatite. Biomed Mater 2024; 19:035025. [PMID: 38537374 DOI: 10.1088/1748-605x/ad38ac] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 03/26/2024] [Indexed: 04/05/2024]
Abstract
Among various biomaterials employed for bone repair, composites with good biocompatibility and osteogenic ability had received increasing attention from biomedical applications. In this study, we doped selenium (Se) into hydroxyapatite (Se-HA) by the precipitation method, and prepared different amounts of Se-HA-loaded poly (amino acid)/Se-HA (PAA/Se-HA) composites (0, 10 wt%, 20 wt%, 30 wt%) byin-situmelting polycondensation. The physical and chemical properties of PAA/Se-HA composites were characterized by x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and their mechanical properties. XRD and FT-IR results showed that PAA/Se-HA composites contained characteristic peaks of PAA and Se-HA with amide linkage and HA structures. DSC and TGA results specified the PAA/Se-HA30 composite crystallization, melting, and maximum weight loss temperatures at 203.33 °C, 162.54 °C, and 468.92 °C, respectively, which implied good thermal stability. SEM results showed that Se-HA was uniformly dispersed in PAA. The mechanical properties of PAA/Se-HA30 composites included bending, compressive, and yield strengths at 83.07 ± 0.57, 106.56 ± 0.46, and 99.17 ± 1.11 MPa, respectively. The cellular responses of PAA/Se-HA compositesin vitrowere studied using bone marrow mesenchymal stem cells (BMSCs) by cell counting kit-8 assay, and results showed that PAA/Se-HA30 composites significantly promoted the proliferation of BMSCs at the concentration of 2 mg ml-1. The alkaline phosphatase activity (ALP) and alizarin red staining results showed that the introduction of Se-HA into PAA enhanced ALP activity and formation of calcium nodule. Western blotting and Real-time polymerase chain reaction results showed that the introduction of Se-HA into PAA could promoted the expression of osteogenic-related proteins and mRNA (integrin-binding sialoprotein, osteopontin, runt-related transcription factor 2 and Osterix) in BMSCs. A muscle defect at the back and a bone defect at the femoral condyle of New Zealand white rabbits were introduced for evaluating the enhancement of bone regeneration of PAA and PAA/Se-HA30 composites. The implantation of muscle tissue revealed good biocompatibility of PAA and PAA/Se-HA30 composites. The implantation of bone defect showed that PAA/Se-HA30 composites enhanced bone formation at the defect site (8 weeks), exhibiting good bone conductivity. Therefore, the PAA-based composite was a promising candidate material for bone tissue regeneration.
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Affiliation(s)
- Xiaobo Wei
- Medical College, Yan'an University, Yan'an 716000, People's Republic of China
| | - Ziyue Zhang
- Medical College, Yan'an University, Yan'an 716000, People's Republic of China
| | - Lei Wang
- Medical College, Yan'an University, Yan'an 716000, People's Republic of China
| | - Lin Yan
- Medical College, Yan'an University, Yan'an 716000, People's Republic of China
| | - Yonggang Yan
- College of Physical Science and Technology, Sichuan University, Chengdu 610064, People's Republic of China
| | - Cheng Wang
- Medical College, Yan'an University, Yan'an 716000, People's Republic of China
| | - Haitao Peng
- Medical College, Yan'an University, Yan'an 716000, People's Republic of China
| | - Xiaoxia Fan
- Medical College, Yan'an University, Yan'an 716000, People's Republic of China
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Physicochemical and biological properties of four calcium silicate-based endodontic cements. J Dent Sci 2022; 17:1586-1594. [PMID: 36299316 PMCID: PMC9588830 DOI: 10.1016/j.jds.2022.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/01/2022] [Indexed: 11/24/2022] Open
Abstract
Background/purpose Materials and methods Results Conclusion
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Li H, Li M, Ran X, Cui J, Wei F, Yi G, Chen W, Luo X, Chen Z. The Role of Zinc in Bone Mesenchymal Stem Cell Differentiation. Cell Reprogram 2022; 24:80-94. [PMID: 35172118 DOI: 10.1089/cell.2021.0137] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Zinc is an essential trace element for bone growth and bone homeostasis in the human body. Bone mesenchymal stem cells (BMSCs) are multipotent progenitors existing in the bone marrow stroma with the capability of differentiating along multiple lineage pathways. Zinc plays a paramount role in BMSCs, which can be spurred differentiating into osteoblasts, chondrocytes, or adipocytes, and modulates the formation and activity of osteoclasts. The expression of related genes also changed during the differentiation of various cell phenotypes. Based on the important role of zinc in BMSC differentiation, using zinc as a therapeutic approach for bone remodeling will be a promising method. This review explores the role of zinc ion in the differentiation of BMSCs into various cell phenotypes and outlines the existing research on their molecular mechanism.
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Affiliation(s)
- Huiyun Li
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Muzhe Li
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Xun Ran
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Juncheng Cui
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Fu Wei
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Guoliang Yi
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Wei Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Xuling Luo
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Zhiwei Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
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Feng S, Li R, Wang Z. Experimental study on the biocompatibility and osteogenesis induction ability of PLLA/DDM scaffolds. Odontology 2022; 110:508-522. [PMID: 35048230 DOI: 10.1007/s10266-021-00683-4] [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: 06/09/2021] [Accepted: 12/21/2021] [Indexed: 11/30/2022]
Abstract
To investigate the characterization and function of a novel porous osteogenic material (PLLA / DDM) containing polylactic acid and demineralized dentin matrix. The surface morphology and composition of the material were observed by SEM and EDS. The physical characteristics of the material were detected by roughness and water contact angle analyses. The rate of weight loss and change in the pH value of the material were observed by scaffold degradation experiments. Four types of material were investigated: polylactic acid (PLLA) scaffold, demineralized dentin matrix (DDM) particles, PLLA/DDM scaffold and a blank control. The osteogenic effect and osteogenic characteristics of the new materials were explored through in vivo and in vitro osteogenic experiments. SEM analysis showed that DDM powder was uniformly distributed in the polylactic acid scaffold, and the water contact angle revealed that the water absorption of the porous scaffold was improved after the addition of DDM powder. The EDS results showed that the peak values of calcium and phosphorus were obviously increased after the addition of DDM powder, and the porosity test showed that the scaffold had higher porosity after the addition of DDM powder. Scaffold degradation experiments revealed that the scaffold gradually degraded with increasing time, and its pH value slightly increased. The results of cell culture and animal model experiments showed that the porous PLLA/DDM scaffold had good bio-compatibility and promoted cell proliferation and differentiation. In histological and micro-CT evaluations, the material showed good bio-compatibility, biodegradability and bone conductivity with host bone tissue in vivo. PLLA / DDM hybrid showed better performance than PLLA or DDM. The biocompatibility and cell growth promoting properties were stronger than those of single material.
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Affiliation(s)
- Song Feng
- Institute for Implant Center, Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Ruipiao Li
- Institute for Implant Center, Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Zhiying Wang
- Institute for Implant Center, Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China.
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Birhanu G, Doosti-Telgerd M, Zandi-Karimi A, Karimi Z, Porgham Daryasari M, Akbari Javar H, Seyedjafari E. Enhanced proliferation and osteogenic differentiation of mesenchymal stem cells by diopside coated Poly-L-lactic Acid-Based nanofibrous scaffolds. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1879078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Gebremariam Birhanu
- Department of Biotechnology, University of Tehran, Tehran, Iran
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, International campus (TUMS-IC), Tehran, Iran
- School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Mehdi Doosti-Telgerd
- Cell Therapy and Regenerative Medicine Comprehensive Center, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Zohreh Karimi
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Porgham Daryasari
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, International campus (TUMS-IC), Tehran, Iran
- Department of Pharmaceutical Biomaterials, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Akbari Javar
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, International campus (TUMS-IC), Tehran, Iran
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Tsai SW, Yu WX, Hwang PA, Hsu YW, Hsu FY. Fabrication and Characteristics of PCL Membranes Containing Strontium-Substituted Hydroxyapatite Nanofibers for Guided Bone Regeneration. Polymers (Basel) 2019; 11:polym11111761. [PMID: 31717839 PMCID: PMC6918198 DOI: 10.3390/polym11111761] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/18/2019] [Accepted: 10/24/2019] [Indexed: 12/24/2022] Open
Abstract
Poly(ε-caprolactone) (PCL) membranes have been widely used in guided tissue regeneration (GTR) and guided bone regeneration (GBR). In addition, hydroxyapatite is the major inorganic component and an essential composition of hard bone and teeth. Recently, numerous studies have demonstrated that strontium-substituted hydroxyapatite (SrHA) not only enhances osteogenesis but also inhibits adipogenesis of mesenchymal stem cells. Therefore, SrHA incorporated into PCL could be an alternative material for GBR. In this study, strontium-substituted hydroxyapatite nanofibers (SrHANFs) were fabricated by a sol-gel route followed by electrospinning. We then fabricated PCL-SrHANF membranes as cell culture substrates and assessed the cellular behavior of osteoblast-like cells. Based on the observations of alkaline phosphatase (ALP) activity, bone sialoprotein (BSP) and osteocalcin (OCN) immunofluorescence staining, and Alizarin Red-S staining of cells cultured on the PCL-SrHANF and PCL membranes, we concluded that SrHANFs can promote the differentiation and mineralization of osteoblast-like cells and that PCL-SrHANF membranes have potential for GBR applications.
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Affiliation(s)
- Shiao-Wen Tsai
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan 303, Taiwan;
- Department of Periodontics, Chang Gung Memorial Hospital, Taipei 105, Taiwan
| | - Wen-Xin Yu
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202, Taiwan; (W.-X.Y.); (P.-A.H.); (Y.-W.H.)
| | - Pai-An Hwang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202, Taiwan; (W.-X.Y.); (P.-A.H.); (Y.-W.H.)
| | - Yu-Wei Hsu
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202, Taiwan; (W.-X.Y.); (P.-A.H.); (Y.-W.H.)
| | - Fu-Yin Hsu
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 202, Taiwan; (W.-X.Y.); (P.-A.H.); (Y.-W.H.)
- Correspondence:
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Karfarma M, Esnaashary MH, Rezaie HR, Javadpour J, Naimi-Jamal MR. Poly(propylene fumarate)/magnesium calcium phosphate injectable bone composite: Effect of filler size and its weight fraction on mechanical properties. Proc Inst Mech Eng H 2019; 233:1165-1174. [PMID: 31545134 DOI: 10.1177/0954411919877277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study aimed to produce a composite of poly(propylene fumarate)/magnesium calcium phosphate as a substitutional implant in the treatment of trabecular bone defects. So, the effect of magnesium calcium phosphate particle size, magnesium calcium phosphate:poly(propylene fumarate) weight ratio on compressive strength, Young's modulus, and toughness was assessed by considering effective fracture mechanisms. Micro-sized (∼30 µm) and nano-sized (∼50 nm) magnesium calcium phosphate particles were synthesized via emulsion precipitation and planetary milling methods, respectively, and added to poly(propylene fumarate) up to 20 wt.%. Compressive strength, Young's modulus, and toughness of the composites were measured by compressive test, and effective fracture mechanisms were evaluated by imaging fracture surface. In both micro- and nano-composites, the highest compressive strength was obtained by adding 10 wt.% magnesium calcium phosphate particles, and the enhancement in nano-composite was superior to micro-one. The micrographs of fracture surface revealed different mechanisms such as crack pinning, void plastic growth, and particle cleavage. According to the results, the produced composite can be considered as a candidate for substituting hard tissue.
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Affiliation(s)
- Masoud Karfarma
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran
| | | | - Hamid Reza Rezaie
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Jafar Javadpour
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Mohammad Reza Naimi-Jamal
- Research Laboratory of Green Organic Synthesis and Polymers, Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
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8
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Fan X, Yan Y. Poly(amino acid)/ZnO nanoparticles nanocomposites with enhanced thermal, mechanical, and antibacterial properties. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02860-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Telgerd MD, Sadeghinia M, Birhanu G, Daryasari MP, Zandi-Karimi A, Sadeghinia A, Akbarijavar H, Karami MH, Seyedjafari E. Enhanced osteogenic differentiation of mesenchymal stem cells on metal-organic framework based on copper, zinc, and imidazole coated poly-l-lactic acid nanofiber scaffolds. J Biomed Mater Res A 2019; 107:1841-1848. [PMID: 31033136 DOI: 10.1002/jbm.a.36707] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 04/16/2019] [Accepted: 04/24/2019] [Indexed: 12/15/2022]
Abstract
The presence of inorganic bioactive minerals with polymers can accelerate and promote several processes including: bone cell joining, proliferation, differentiation, and expression of osteogenic proteins. In this study, zinc (Zn), copper (Cu), and imidazole metal-organic framework (MOF) nanoparticles were synthesized and coated over poly-l-lactic acid (PLLA) nanofibrous scaffolds for bone tissue engineering application. The surface and bioactive features of the scaffolds were characterized. The osteogenic potential of the scaffolds on human adipose tissue-derived mesenchymal stem cells (MSCs) was evaluated. Zn-Cu imidazole MOF coated PLLA scaffolds (PLLA@MOF) showed a comparable rate of MSC proliferation with the pure PLLA scaffolds and tissue culture plate (TCP). However, the PLLA@MOF potential of osteogenic differentiation was significantly greater than either pristine PLLA scaffolds or TCP. Hence, coating Zn-Cu imidazole MOF has a significant effect on the osteogenesis of MSC. Therefore, PLLA@MOF is novel scaffolds with bioactive components which are crucial for osteoconductivity and also able to provoke the osteogenesis and angiogenesis.
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Affiliation(s)
- M D Telgerd
- Department of Pharmaceutical Biomaterials, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Sadeghinia
- School of Chemistry, University College of Science, University of Tehran, Tehran, Iran
| | - Gebremariam Birhanu
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences International Campus (TUMS-IC), Tehran, Iran.,School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - M P Daryasari
- Department of Pharmaceutical Biomaterials, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Zandi-Karimi
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran
| | - Ali Sadeghinia
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamid Akbarijavar
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - M H Karami
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran
| | - Ehsan Seyedjafari
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran
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Bioactive Sphene-Based Ceramic Coatings on cpTi Substrates for Dental Implants: An In Vitro Study. MATERIALS 2018; 11:ma11112234. [PMID: 30424012 PMCID: PMC6267351 DOI: 10.3390/ma11112234] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 10/26/2018] [Accepted: 11/05/2018] [Indexed: 01/08/2023]
Abstract
Titanium implant surface modifications have been widely investigated to favor the process of osseointegration. The present work aimed to evaluate the effect of sphene (CaTiSiO5) biocoating, on titanium substrates, on the in vitro osteogenic differentiation of Human Adipose-Derived Stem Cells (hADSCs). Sphene bioceramic coatings were prepared using preceramic polymers and nano-sized active fillers and deposited by spray coating. Scanning Electron Microscopy (SEM) analysis, surface roughness measurements and X-ray diffraction analysis were performed. The chemical stability of the coatings in Tris-HCl solution was investigated. In vitro studies were performed by means of proliferation test of hADSCs seeded on coated and uncoated samples after 21 days. Methyl Thiazolyl-Tetrazolium (MTT) test and immunofluorescent staining with phalloidin confirmed the in vitro biocompatibility of both substrates. In vitro osteogenic differentiation of the cells was evaluated using Alizarin Red S staining and quantification assay and real-time PCR (Polymerase Chain Reaction). When hADSCs were cultured in the presence of Osteogenic Differentiation Medium, a significantly higher accumulation of calcium deposits onto the sphene-coated surfaces than on uncoated controls was detected. Osteogenic differentiation on both samples was confirmed by PCR. The proposed coating seems to be promising for dental and orthopedic implants, in terms of composition and deposition technology.
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Antibacterial forsterite (Mg 2SiO 4) scaffold: A promising bioceramic for load bearing applications. Bioact Mater 2018; 3:218-224. [PMID: 29744460 PMCID: PMC5935788 DOI: 10.1016/j.bioactmat.2018.03.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 02/12/2018] [Accepted: 03/24/2018] [Indexed: 12/15/2022] Open
Abstract
In the current work, forsterite samples with different surface area were investigated for its antibacterial activity. Dissolution studies show that the lower degradation of forsterite compared to other silicate bioceramics, which is a desirable property for repairing bone defects. Forsterite scaffold shows superior compressive strength than the cortical bone after immersion in simulated body fluid. Bactericidal tests indicate that the forsterite had inhibition effect on the growth of clinical bacterial isolates. Forsterite may be a suitable candidate material for load bearing applications with enhanced mechanical properties and lower degradation rate. Forsterite with higher surface area shows better degradation, mechanical stability and antibacterial activity. The compressive strength of forsterite is similar to that of cortical bone. The dissolution of Mg2+ ion and change in pH are responsible for antibacterial activity of forsterite.
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12
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Bari SS, Mishra S. Calcium silicate nanowires – An effective alternative for improving mechanical properties of chitosan-hydroxyethyl methacrylate (HEMA) copolymer nanocomposites. Carbohydr Polym 2017; 169:426-432. [DOI: 10.1016/j.carbpol.2017.04.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 03/16/2017] [Accepted: 04/11/2017] [Indexed: 10/19/2022]
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Mohammadi H, Sepantafar M. Ion-Doped Silicate Bioceramic Coating of Ti-Based Implant. IRANIAN BIOMEDICAL JOURNAL 2016; 20:189-200. [PMID: 26979401 PMCID: PMC4983673 DOI: 10.7508/ibj.2016.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/08/2015] [Accepted: 09/02/2015] [Indexed: 01/05/2023]
Abstract
Titanium and its alloy are known as important load-bearing biomaterials. The major drawbacks of these metals are fibrous formation and low corrosion rate after implantation. The surface modification of biomedical implants through various methods such as plasma spray improves their osseointegration and clinical lifetime. Different materials have been already used as coatings on biomedical implant, including calcium phosphates and bioglass. However, these materials have been reported to have limited clinical success. The excellent bioactivity of calcium silicate (Ca-Si) has been also regarded as coating material. However, their high degradation rate and low mechanical strength limit their further coating application. Trace element modification of (Ca-Si) bioceramics is a promising method, which improves their mechanical strength and chemical stability. In this review, the potential of trace element-modified silicate coatings on better bone formation of titanium implant is investigated.
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Affiliation(s)
- Hossein Mohammadi
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia
| | - Mohammadmajid Sepantafar
- Department of Stem Cell and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Department of Metallurgy and Materials Engineering, Faculty of Engineering, University of Semnan, Semnan, Iran
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Liu Z, Ji J, Tang S, Qian J, Yan Y, Yu B, Su J, Wei J. Biocompatibility, degradability, bioactivity and osteogenesis of mesoporous/macroporous scaffolds of mesoporous diopside/poly(L-lactide) composite. J R Soc Interface 2016; 12:20150507. [PMID: 26378120 DOI: 10.1098/rsif.2015.0507] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Bioactive mesoporous diopside (m-DP) and poly(L-lactide) (PLLA) composite scaffolds with mesoporous/macroporous structure were prepared by the solution-casting and particulate-leaching method. The results demonstrated that the degradability and bioactivity of the mesoporous/macroporous scaffolds were significantly improved by incorporating m-DP into PLLA, and that the improvement was m-DP content-dependent. In addition, the scaffolds containing m-DP showed the ability to neutralize acidic degradation products and prevent the pH from dropping in the solution during the soaking period. Moreover, the scaffolds containing m-DP enhanced attachment, proliferation and alkaline phosphatase activity of MC3T3-E1 cells, which were also m-DP content-dependent. Furthermore, the histological and immunohistochemical analysis results showed that the scaffolds with m-DP significantly promoted new bone formation and improved the materials degraded in vivo, indicating good biocompatibility. The results suggested that the mesoporous/macroporous scaffolds of the m-DP/PLLA composite with osteogenesis had a potential for bone regeneration.
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Affiliation(s)
- Zhulin Liu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Jiajin Ji
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Songchao Tang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Jun Qian
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Yonggang Yan
- College of Physical Science and Technology, Sichuan University, Chengdu 610041, People's Republic of China
| | - Baoqing Yu
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai 200433, People's Republic of China
| | - Jiacan Su
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai 200433, People's Republic of China
| | - Jie Wei
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, People's Republic of China
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Idaszek J, Bruinink A, Święszkowski W. Delayed degradation of poly(lactide-co-glycolide) accelerates hydrolysis of poly(ε-caprolactone) in ternary composite scaffolds. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2015.12.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Zhang F, Lü D, Li H, Luo C, Chang J, Long M. Bioactive calcium silicate extracts regulate the morphology and stemness of human embryonic stem cells at the initial stage. RSC Adv 2016. [DOI: 10.1039/c6ra17785a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
We shed light on the impact of CS extracts on hESC's proliferation and differentiation, which is not clearly investigated.
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Affiliation(s)
- Fan Zhang
- Center of Biomechanics and Bioengineering
- Institute of Mechanics
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Dongyuan Lü
- Center of Biomechanics and Bioengineering
- Institute of Mechanics
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Haiyan Li
- School of Biomedical Engineering
- Shanghai Jiao Tong University
- Shanghai 200030
- China
| | - Chunhua Luo
- Center of Biomechanics and Bioengineering
- Institute of Mechanics
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Jiang Chang
- Biomaterials and Tissue Engineering Research Center
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Mian Long
- Center of Biomechanics and Bioengineering
- Institute of Mechanics
- Chinese Academy of Sciences
- Beijing 100190
- China
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Fan X, Ren H, Luo X, Wang P, Lv G, Yuan H, Li H, Yan Y. Mechanics, degradability, bioactivity, in vitro, and in vivo biocompatibility evaluation of poly(amino acid)/hydroxyapatite/calcium sulfate composite for potential load-bearing bone repair. J Biomater Appl 2015; 30:1261-72. [PMID: 26635202 DOI: 10.1177/0885328215620711] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A ternary composite of poly(amino acid), hydroxyapatite, and calcium sulfate (PAA/HA/CS) was prepared using in situ melting polycondensation method and evaluated in terms of mechanical strengths, in vitro degradability, bioactivity, as well as in vitro and in vivo biocompatibility. The results showed that the ternary composite exhibited a compressive strength of 147 MPa, a bending strength of 121 MPa, a tensile strength of 122 MPa, and a tensile modulus of 4.6 GPa. After immersion in simulated body fluid, the compressive strength of the composite decreased from 147 to 98 MPa for six weeks and the bending strength decreased from 121 to 75 MPa for eight weeks, and both of them kept stable in the following soaking period. The composite could be slowly degraded with 7.27 wt% loss of initial weight after soaking in phosphate buffered solution for three weeks when started to keep stable weight in the following days. The composite was soaked in simulated body fluid solution and the hydroxyapatite layer, as flower-like granules, formed on the surface of the composite samples, showing good bioactivity. Moreover, it was found that the composite could promote proliferation of MG-63 cells, and the cells with normal phenotype extended and spread well on the composite surface. The implantation of the composite into the ulna of sheep confirmed that the composite was biocompatible and osteoconductive in vivo, and offered the PAA/HA/CS composite promising material for load-bearing bone substitutes for clinical application.
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Affiliation(s)
- Xiaoxia Fan
- College of Physical Science and Technology, Sichuan University, Chengdu, China
| | - Haohao Ren
- College of Physical Science and Technology, Sichuan University, Chengdu, China
| | - Xiaoman Luo
- Xpand Biotechnology BV, Bilthoven, The Netherlands
| | - Peng Wang
- College of Physical Science and Technology, Sichuan University, Chengdu, China
| | - Guoyu Lv
- College of Physical Science and Technology, Sichuan University, Chengdu, China
| | - Huipin Yuan
- Tissue Regeneration Department, Twente University, Enschede, The Netherlands
| | - Hong Li
- College of Physical Science and Technology, Sichuan University, Chengdu, China
| | - Yonggang Yan
- College of Physical Science and Technology, Sichuan University, Chengdu, China
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Fan X, Ren H, Liu P, Wang P, Li H, Yan Y, Lv G. Effects of the surface modification of poly(amino acid)/hydroxyapatite/calcium sulfate biocomposites on the adhesion and proliferation of osteoblast-like cells. J Appl Polym Sci 2015. [DOI: 10.1002/app.42427] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaoxia Fan
- College of Physical Science and Technology; Sichuan University; Chengdu 610064 China
| | - Haohao Ren
- College of Physical Science and Technology; Sichuan University; Chengdu 610064 China
| | - Pengzheng Liu
- Sichuan National Nano Technology Company; Chengdu 610041 China
| | - Peng Wang
- College of Physical Science and Technology; Sichuan University; Chengdu 610064 China
| | - Hong Li
- College of Physical Science and Technology; Sichuan University; Chengdu 610064 China
| | - Yonggang Yan
- College of Physical Science and Technology; Sichuan University; Chengdu 610064 China
| | - Guoyu Lv
- College of Physical Science and Technology; Sichuan University; Chengdu 610064 China
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Suslu A, Albayrak AZ, Urkmez AS, Bayir E, Cocen U. Effect of surfactant types on the biocompatibility of electrospun HAp/PHBV composite nanofibers. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:2677-2689. [PMID: 25091188 DOI: 10.1007/s10856-014-5286-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 07/21/2014] [Indexed: 06/03/2023]
Abstract
Bone tissue engineering literature conveys investigations regarding biodegradable polymers where bioactive inorganic materials are added either before or after electrospinning process. The goal is to mimic the composition of bone and enhance the biocompatibility of the materials. Yet, most polymeric materials are hydrophobic in nature; therefore, their surfaces are not favorable for human cellular adhesion. In this sense, modifications of the hydrophobic surface of electrospun polymer fibers with hydrophilic and bioactive nanoparticles are beneficial. In this work, dispersion of hydroxyapatite (HAp), which is similar to the mineral component of natural bone, within biodegradable and biocompatible polymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) with the aid of a surfactant has been investigated. Non-ionic TWEEN20 and 12-hydroxysteric acid (HSA), cationic dodecyl trimethyl ammonium bromide (DTAB) and anionic sodium deoxycholate and sodium dodecyl sulfate (SDS) surfactants were used for comparison in order to prepare stable and homogenous nanocomposite suspensions of HAp/PHBV for the electrospinning process. Continuous and uniform composite nanofibers were generated successfully within a diameter range of 400-1,000 nm by the mediation of all surfactant types. Results showed that incorporation of HAp and any of the surfactant types strongly activates the precipitation rate of the apatite-like particles and decreases percent crystallinity of the HAp/PHBV mats. Mineralization was greatly enhanced on the fibers produced by using DTAB, HSA, and especially SDS on where also osteoblastic metabolic activity was similarly increased. The produced HAp/PHBV nanofibrous composite scaffolds would be a promising candidate as an osteoconductive bioceramic/polymer composite material for tissue engineering applications.
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Affiliation(s)
- A Suslu
- Metallurgical and Materials Engineering Department, Dokuz Eylul University, Izmir, Turkey
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20
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The Development of Biomimetic Spherical Hydroxyapatite/Polyamide 66 Biocomposites as Bone Repair Materials. INT J POLYM SCI 2014. [DOI: 10.1155/2014/579252] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A novel biomedical material composed of spherical hydroxyapatite (s-HA) and polyamide 66 (PA) biocomposite (s-HA/PA) was prepared, and its composition, mechanical properties, and cytocompatibility were characterized and evaluated. The results showed that HA distributed uniformly in the s-HA/PA matrix. Strong molecule interactions and chemical bonds were presented between the s-HA and PA in the composites confirmed by IR and XRD. The composite had excellent compressive strength in the range between 95 and 132 MPa, close to that of natural bone.In vitroexperiments showed the s-HA/PA composite could improve cell growth, proliferation, and differentiation. Therefore, the developed s-HA/PA composites in this study might be used for tissue engineering and bone repair.
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21
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Kharaziha M, Fathi M, Edris H. Effects of surface modification on the mechanical and structural properties of nanofibrous poly(ε-caprolactone)/forsterite scaffold for tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4512-9. [DOI: 10.1016/j.msec.2013.07.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 06/05/2013] [Accepted: 07/04/2013] [Indexed: 10/26/2022]
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22
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Han Y, Zeng Q, Li H, Chang J. The calcium silicate/alginate composite: preparation and evaluation of its behavior as bioactive injectable hydrogels. Acta Biomater 2013; 9:9107-17. [PMID: 23796407 DOI: 10.1016/j.actbio.2013.06.022] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 06/09/2013] [Accepted: 06/14/2013] [Indexed: 12/22/2022]
Abstract
In this study, an injectable calcium silicate (CS)/sodium alginate (SA) hybrid hydrogel was prepared using a novel material composition design. CS was incorporated into an alginate solution and internal in situ gelling was induced by the calcium ions directly released from CS with the addition of d-gluconic acid δ-lactone (GDL). The gelling time could be controlled, from about 30s to 10 min, by varying the amounts of CS and GDL added. The mechanical properties of the hydrogels with different amounts of CS and GDL were systematically analyzed. The compressive strength of 5% CS/SA hydrogels was higher than that of 10% CS/SA for the same amount of GDL. The swelling behaviors of 5% CS/SA hydrogels with different contents of GDL were therefore investigated. The swelling ratios of the hydrogels decreased with increasing GDL, and 5% CS/SA hydrogel with 1% GDL swelled by only less than 5%. Scanning electron microscopy (SEM) observation of the scaffolds showed an optimal interconnected porous structure, with the pore size ranging between 50 and 200 μm. Fourier transform infrared spectroscopy and SEM showed that the CS/SA composite hydrogel induced the formation of hydroxyapatite on the surface of the materials in simulated body fluid. In addition, rat bone mesenchymal stem cells (rtBMSCs) cultured in the presence of hydrogels and their ionic extracts were able to maintain the viability and proliferation. Furthermore, the CS/SA composite hydrogel and its ionic extracts stimulated rtBMSCs to produce alkaline phosphatase, and its ionic extracts could also promote angiogenesis of human umbilical vein endothelial cells. Overall, all these results indicate that the CS/SA composite hydrogel efficiently supported the adhesion, proliferation and differentiation of osteogenic and angiogenic cells. Together with its porous three-dimensional structure and injectable properties, CS/SA composite hydrogel possesses great potential for bone regeneration and tissue engineering applications.
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Idaszek J, Zinn M, Obarzanek-Fojt M, Zell V, Swieszkowski W, Bruinink A. Tailored degradation of biocompatible poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/calcium silicate/poly(lactide-co-glycolide) ternary composites: an in vitro study. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4352-60. [PMID: 23910353 DOI: 10.1016/j.msec.2013.06.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 05/23/2013] [Accepted: 06/19/2013] [Indexed: 11/29/2022]
Abstract
Biodegradable materials, which are currently available for bone tissue regeneration, still have limitations regarding their degradation rate, mechanical stability and/or biological response. Thus, a novel generation of materials for bioactive bone scaffolds is needed that triggers hydroxyapatite formation and can be tailored to suit application-specific requirements. In this study we developed ternary bioactive composite materials composed of poly(3-hydroxybutyrate-co-3-hydroxyvalerate), calcium silicate and poly(lactide-co-glycolide) (PHBV/CS/PLGA), which merged the good bioactivity of CS/PHBV composite and the improved degradation velocity of PHBV/PLGA blend. Bioactive character of all composites was proven by formation of hydroxyapatite-like crystals after already one week of incubation in simulated body fluid. Addition of PLGA significantly increased initial ultimate tensile strength (UTS0) and Young's modulus of the ternary composites from 14.3±1.1 MPa (binary composite) to 22.3±2.6 MPa and 1.23±0.05 GPa up to 1.64±0.14 GPa, respectively. Furthermore the degradation rate (measured as a decrease of UTS during degradation) could be successfully tailored and was in range of -0.033 UTS0 to -0.118 UTS0 MPa/week. The bioacceptance of the materials was proven in vitro using 2-D (conventional setup) and 3-D (multicellular spheroids) human bone marrow stromal cell cultures.
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Affiliation(s)
- J Idaszek
- Warsaw University of Technology, Faculty of Materials Science and Engineering, Woloska Street 141, 02-507 Warsaw, Poland
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24
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Lin HM, Lin YH, Hsu FY. Preparation and characterization of mesoporous bioactive glass/polycaprolactone nanofibrous matrix for bone tissues engineering. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:2619-2630. [PMID: 22875607 DOI: 10.1007/s10856-012-4734-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 07/23/2012] [Indexed: 06/01/2023]
Abstract
A polycaprolactone (PCL) nanofibrous composite matrix having mesoporous bioactive glass nanoparticles (MBG) was fabricated using the electrospinning method, and the microstructural, physical and biological properties of the composite matrix were characterized. The fiber diameters of PCL, 5 % MBG/PCL (5 M-PCL) and 10 % MBG/PCL (10 M-PCL) were 575 ± 162 nm, 312 ± 134 nm and 321 ± 144 nm, respectively. The bioactivity of the composite matrix was evaluated by soaking the matrix in 1.5× simulated body fluid; the MBG/PCL matrix showed a better biomineralization capability than did the PCL matrix. The biological performance of the PCL and the MBG/PCL were evaluated using an in vitro culture of MG63 osteoblast-like cells. We found that the cell attachment and proliferation rates were significantly higher on the 10 M-PCL than on the PCL. Moreover, the expression of several genes, including ANX-V, type I collagen and OCN, ALP activity, the deposition of calcium, and the BSP protein, were also significantly higher on 10 M-PCL than PCL. These results indicated that MBG/PCL has the ability to support cell attachment, growth, and differentiation and can also yield high bioactivity. Therefore, MBG/PCL could be potentially applied in bone implants.
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Affiliation(s)
- Hsiu-Mei Lin
- Institute of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
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25
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Higuera GA, van Boxtel A, van Blitterswijk CA, Moroni L. The physics of tissue formation with mesenchymal stem cells. Trends Biotechnol 2012; 30:583-90. [PMID: 22959896 DOI: 10.1016/j.tibtech.2012.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 06/29/2012] [Accepted: 07/30/2012] [Indexed: 01/22/2023]
Abstract
Cells react to various forms of physical phenomena that promote and maintain the formation of tissues. The best example of this are cells of musculoskeletal origin, such as mesenchymal stem cells (MSCs), which consistently proliferate or differentiate under cues from hydrostatic pressure, diffusive mass transport, shear stress, surface chemistry, mechanotransduction, and molecular kinetics. To date, no other cell type shows greater receptiveness to macroscopic and microscopic cues, highlighting the acute sensitivity of MSCs and the importance of physical principles in tissue homeostasis. In this review, we describe the literature that has shown how physical phenomena govern MSCs biology and provide insight into the mechanisms and strategies that can spur new biotechnological applications with tissue biology.
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Affiliation(s)
- Gustavo A Higuera
- Department of Tissue Regeneration, Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
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26
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Zhang M, Wu C, Lin K, Fan W, Chen L, Xiao Y, Chang J. Biological responses of human bone marrow mesenchymal stem cells to Sr-M-Si (M = Zn, Mg) silicate bioceramics. J Biomed Mater Res A 2012; 100:2979-90. [PMID: 22696393 DOI: 10.1002/jbm.a.34246] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 04/25/2012] [Accepted: 05/03/2012] [Indexed: 01/27/2023]
Abstract
Strontium (Sr), Zinc (Zn), magnesium (Mg), and silicon (Si) are reported to be essential trace elements for the growth and mineralization of bone. We speculated that the combination of these bioactive elements in bioceramics may be effective to regulate the osteogenic property of bone-forming cells. In this study, two Sr-containing silicate bioceramics, Sr(2)ZnSi(2)O(7) (SZS) and Sr(2)MgSi(2)O(7) (SMS), were prepared. The biological response of human bone marrow mesenchymal stem cells (BMSCs) to the two bioceramics (in the forms of powders and dense ceramic bulks) was systematically studied. In powder form, the effect of powder extracts on the viability and alkaline phosphatase (ALP) activity of BMSCs was investigated. In ceramic disc form, both direct and indirect coculture of BMSCs with ceramic discs were used to investigate their biological response, including attachment, proliferation, ALP activity, and bone-related genes expression. Beta-tricalcium phosphate (β-TCP) and akermanite (Ca(2)MgSi(2)O(7), CMS) were used as control materials. The results showed that the Sr, Zn, and Si (or Sr, Mg, and Si)-containing ionic products from SZS and SMS powders enhanced ALP activity of BMSCs, compared to those from β-TCP. Both SZS and SMS ceramic discs supported the growth of BMSCs, and most importantly, significantly enhanced the ALP activity and bone-related genes expression of BMSCs as compared to β-TCP. The results suggest that the specific combination of bioactive ions (Sr, Zn, Si, e.g.) in bioceramics is a viable way to improve the biological performance of biomaterials, and the form of materials and surface properties were nonnegligible factors to influence cell response.
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Affiliation(s)
- Meili Zhang
- The Biomaterials and Tissue Engineering Research Center, State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, PR China
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Li H, Gong M, Yang A, Ma J, Li X, Yan Y. Degradable biocomposite of nano calcium-deficient hydroxyapatite-multi(amino acid) copolymer. Int J Nanomedicine 2012; 7:1287-95. [PMID: 22457591 PMCID: PMC3310413 DOI: 10.2147/ijn.s28978] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background and methods A nano calcium-deficient hydroxyapatite (n-CDHA)-multi(amino acid) copolymer (MAC) composite bone substitute biomaterial was prepared using an in situ polymerization method. The composition, structure, and compressive strength of the composite was characterized, and the in vitro degradability in phosphate-buffered solution and preliminary cell responses to the composite were investigated. Results The composite comprised n-CDHA and an amide linkage copolymer. The compressive strength of the composite was in the range of 88–129 MPa, varying with the amount of n-CDHA in the MAC (ranging from 10 wt% to 50 wt%). Weight loss from the composite increased (from 32.2 wt% to 44.3 wt%) with increasing n-CDHA content (from 10 wt% to 40 wt%) in the MAC after the composite was soaked in phosphate-buffered solution for 12 weeks. The pH of the soaking medium varied from 6.9 to 7.5. MG-63 cells with an osteogenic phenotype were well adhered and spread on the composite surface. Viability and differentiation increased with time, indicating that the composite had no negative effects on MG-63 cells. Conclusion The n-CDHA-MAC composite had good cytocompatibility and has potential to be used as a bone substitute.
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Affiliation(s)
- Hong Li
- School of Physical Science and Technology, Sichuan University, Chengdu, People's Republic of China
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28
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Higuera GA, Schop D, Spitters TWGM, van Dijkhuizen-Radersma R, Bracke M, de Bruijn JD, Martens D, Karperien M, van Boxtel A, van Blitterswijk CA. Patterns of amino acid metabolism by proliferating human mesenchymal stem cells. Tissue Eng Part A 2011; 18:654-64. [PMID: 21943055 DOI: 10.1089/ten.tea.2011.0223] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The nutritional requirements of stem cells have not been determined; in particular, the amino acid metabolism of stem cells is largely unknown. In this study, we investigated the amino acid metabolism of human mesenchymal stem cells (hMSCs), with focus on two questions: Which amino acids are consumed and/or secreted by hMSCs and at what rates? To answer these questions, hMSCs were cultured on tissue culture plastic and in a bioreactor, and their amino acid profile was analyzed. The results showed that the kinetics of hMSCs growth and amino acid metabolism were significantly higher for hMSCs in tissue culture plastic than in the bioreactor. Despite differences in culture conditions, 8 essential and 6 nonessential amino acids were consumed by hMSCs in both tissue culture plastic and bioreactor cultures. Glutamine was the most consumed amino acid with significantly higher rates than for any other amino acid. The metabolism of nonessential amino acids by hMSCs deviated significantly from that of other cell lines. The secretion of alanine, glycine, glutamate, and ornithine by hMSCs showed that there is a strong overflow metabolism that can be due to the high concentrations of amino acids provided in the medium. In addition, the data showed that there is a metabolic pattern for proliferating hMSCs, which can contribute to the design of medium without animal serum for stem cells. Further, this study shows how to implement amino acid rates and metabolic principles in three-dimensional stem cell biology.
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Affiliation(s)
- Gustavo A Higuera
- Department of Tissue Regeneration, University of Twente, Enschede, The Netherlands.
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29
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Poly-є-caprolactone based formulations for drug delivery and tissue engineering: A review. J Control Release 2011; 158:15-33. [PMID: 21963774 DOI: 10.1016/j.jconrel.2011.09.064] [Citation(s) in RCA: 595] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Accepted: 08/07/2011] [Indexed: 11/20/2022]
Abstract
Biodegradable polymer based novel drug delivery systems have provided many avenues to improve therapeutic efficacy and pharmacokinetic parameters of medicinal entities. Among synthetic biodegradable polymer, poly-є-caprolactone (PCL) is a polymer with very low glass transition temperature and melting point. Owing to its amicable nature and tailorable properties it has been trialed in almost all novel drug delivery systems and tissue engineering application in use/investigated so far. This review aims to provide an up to date of drugs incorporated in different PCL based formulations, their purpose and brief outcomes. Demonstrated PCL formulations with or without drugs, intended for drug delivery and/or tissue engineering application such as microsphere, nanoparticles, scaffolds, films, fibers, micelles etc. are categorized based on method of preparation.
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30
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Brammer KS, Choi C, Frandsen CJ, Oh S, Jin S. Hydrophobic nanopillars initiate mesenchymal stem cell aggregation and osteo-differentiation. Acta Biomater 2011; 7:683-90. [PMID: 20863916 DOI: 10.1016/j.actbio.2010.09.022] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2010] [Revised: 09/09/2010] [Accepted: 09/16/2010] [Indexed: 11/20/2022]
Abstract
Surface engineering approaches that alter the physical topography of a substrate could be used as an effective tool and as an alternative to biochemical means of directing stem cell interactions and their subsequent differentiation. In this paper we compare hydrophobic micro- vs. nanopillar type fabrication techniques for probing mesenchymal stem cell (MSC) interaction with the surface physical environment. The roles played by the topography of the nanopillar in particular influenced MSC growth and allowed for regulatory control of the stem cell fate. The nanopillar induced large 3-D cell aggregates to form on the surface which had up-regulated osteogenic specific matrix components. The ability to control MSC differentiation, using only the topographical factors, has a profound effect on both MSC biology and tissue engineering. This study aims to highlight the importance of the physical material carrier in stem cell based tissue engineering schemes.
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Affiliation(s)
- Karla S Brammer
- Materials Science & Engineering, University of California, San Diego, La Jolla, CA, USA
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31
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Shen J, Li Y, Zuo Y, Zou Q, Cheng L, Zhang L, Gong M, Gao S. Characterization and cytocompatibility of biphasic calcium phosphate/polyamide 6 scaffolds for bone regeneration. J Biomed Mater Res B Appl Biomater 2010; 95:330-8. [DOI: 10.1002/jbm.b.31717] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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32
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Yang F, Xie Y, Li H, Tang T, Zhang X, Gan Y, Zheng X, Dai K. Human bone marrow-derived stromal cells cultured with a plasma sprayed CaO-ZrO2-SiO2 coating. J Biomed Mater Res B Appl Biomater 2010; 95:192-201. [DOI: 10.1002/jbm.b.31702] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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33
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Wu C, Ramaswamy Y, Liu X, Wang G, Zreiqat H. Plasma-sprayed CaTiSiO5 ceramic coating on Ti-6Al-4V with excellent bonding strength, stability and cellular bioactivity. J R Soc Interface 2009; 6:159-68. [PMID: 18664431 DOI: 10.1098/rsif.2008.0274] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Novel Ca-Si-Ti-based sphene (CaTiSiO5) ceramics possess excellent chemical stability and cytocompatibility. The aim of this study was to prepare sphene coating on titanium alloy (Ti-6Al-4V) for orthopaedic applications using the plasma spray method. The phase composition, surface and interface microstructure, coating thickness, surface roughness and bonding strength of the plasma-sprayed sphene coating were analysed using X-ray diffraction, scanning electron microscopy, atomic force microscopy and the standard mechanical testing of the American Society for Testing and Materials, respectively. The results indicated that sphene coating was obtained with a uniform and dense microstructure at the interface of the Ti-6Al-4V surface and the thickness and surface roughness of the coating were approximately 150 and 10 microm, respectively. Plasma-sprayed sphene coating on Ti-6Al-4V possessed a significantly improved bonding strength and chemical stability compared with plasma-sprayed hydroxyapatite (HAp) coating. Plasma-sprayed sphene coating supported human osteoblast-like cell (HOB) attachment and significantly enhanced HOB proliferation and differentiation compared with plasma-sprayed HAp coating and uncoated Ti-6Al-4V. Taken together, plasma-sprayed sphene coating on Ti-6Al-4V possessed excellent bonding strength, chemical stability and cellular bioactivity, indicating its potential application for orthopaedic implants.
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Affiliation(s)
- Chengtie Wu
- Biomaterials and Tissue Engineering Research Unit, School of AMME, University of Sydney, Sydney 2006, Australia
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