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Zhu F, Wang T, Wang G, Yan C, He B, Qiao B. The Exosome-Mediated Bone Regeneration: An Advanced Horizon Toward the Isolation, Engineering, Carrying Modalities, and Mechanisms. Adv Healthc Mater 2024:e2400293. [PMID: 38426417 DOI: 10.1002/adhm.202400293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Indexed: 03/02/2024]
Abstract
Exosomes, nanoparticles secreted by various cells, composed of a bilayer lipid membrane, and containing bioactive substances such as proteins, nucleic acids, metabolites, etc., have been intensively investigated in tissue engineering owing to their high biocompatibility and versatile biofunction. However, there is still a lack of a high-quality review on bone defect regeneration potentiated by exosomes. In this review, the biogenesis and isolation methods of exosomes are first introduced. More importantly, the engineered exosomes of the current state of knowledge are discussed intensively in this review. Afterward, the biomaterial carriers of exosomes and the mechanisms of bone repair elucidated by compelling evidence are presented. Thus, future perspectives and concerns are revealed to help devise advanced modalities based on exosomes to overcome the challenges of bone regeneration. It is totally believed this review will attract special attention from clinicians and provide promising ideas for their future works.
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Affiliation(s)
- Fukang Zhu
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd, Chongqing, 400010, P. R. China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400010, P. R. China
| | - Taiyou Wang
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd, Chongqing, 400010, P. R. China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400010, P. R. China
| | - Guangjian Wang
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd, Chongqing, 400010, P. R. China
- Department of Orthopaedics, The People's Hospital of Rongchang District, Chongqing, 402460, P. R. China
| | - Caiping Yan
- Department of Orthopaedics, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120, P. R. China
| | - Bin He
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd, Chongqing, 400010, P. R. China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400010, P. R. China
| | - Bo Qiao
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd, Chongqing, 400010, P. R. China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400010, P. R. China
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Timbó ICG, Oliveira MSCS, Lima RA, Chaves AV, Pereira VDA, Fechine PBA, Regis RR. Microbiological, physicomechanical, and surface evaluation of an experimental self-curing acrylic resin containing halloysite nanotubes doped with chlorhexidine. Dent Mater 2024; 40:348-358. [PMID: 38142145 DOI: 10.1016/j.dental.2023.12.003] [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: 03/31/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 12/25/2023]
Abstract
OBJECTIVE The objective was to synthesize halloysite nanotubes loaded with chlorhexidine (HNT/CHX) and evaluate the antimicrobial activity, microhardness, color change, and surface characteristics of an experimental self-curing acrylic resin containing varying concentrations of the synthesized nanomaterial. METHODS The characterization of HNT/CHX was carried out by calculating incorporation efficiency, morphological and compositional, chemical and thermal evaluations. SAR disks were made containing 0 %, 3 %, 5 %, and 10 % of HNT/CHX. Specimens (n = 3) were immersed in distilled water and spectral measurements were carried out using UV/Vis spectroscopy to evaluate the release of CHX for up to 50 days. The antimicrobial activity of the composite against Candida albicans and Streptococcus mutans was evaluated by disk-diffusion test. Microhardness, color analyses (ΔE), and surface roughness (Ra) (n = 9) were performed before and after 30 days of immersion. Data were analyzed using ANOVA/Bonferroni. {Results.} The incorporation efficiency of CHX into HNT was of 8.15 %. All test groups showed controlled and cumulative CHX release up to 30 or 50 days. Significant antimicrobial activity was verified against both microorganisms (p < 0.001). After the 30-day immersion period, the 10 % HNT/CHX group showed a significant increase in hardness (p < 0.05) and a progressive color change (p < 0.001). At T0, the 5 % and 10 % groups exhibited Ra values similar to the control group (p > 0.05), while at T30, all groups showed similar roughness values (p > 0.05). {Significance.} The modification of a SAR with HNT/CHX provides antimicrobial effect and controlled release of CHX, however, the immediate surface roughness in the 3 % group was compromised when compared to the control group.
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Affiliation(s)
- Isabelle C G Timbó
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Federal University of Ceará (FFOE-UFC), Fortaleza, CE, Brazil
| | - Mayara S C S Oliveira
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Federal University of Ceará (FFOE-UFC), Fortaleza, CE, Brazil
| | - Ramille A Lima
- Department of Dentistry, Unichristus, Fortaleza, CE, Brazil
| | - Anderson V Chaves
- Group of Chemistry of Advanced Materials (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceara (UFC), Fortaleza, CE, Brazil
| | - Vanessa de A Pereira
- Group of Chemistry of Advanced Materials (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceara (UFC), Fortaleza, CE, Brazil
| | - Pierre B A Fechine
- Group of Chemistry of Advanced Materials (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceara (UFC), Fortaleza, CE, Brazil
| | - Romulo R Regis
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Federal University of Ceará (FFOE-UFC), Fortaleza, CE, Brazil.
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Barcena AJR, Dhal K, Patel P, Ravi P, Kundu S, Tappa K. Current Biomedical Applications of 3D-Printed Hydrogels. Gels 2023; 10:8. [PMID: 38275845 PMCID: PMC10815850 DOI: 10.3390/gels10010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/12/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
Three-dimensional (3D) printing, also known as additive manufacturing, has revolutionized the production of physical 3D objects by transforming computer-aided design models into layered structures, eliminating the need for traditional molding or machining techniques. In recent years, hydrogels have emerged as an ideal 3D printing feedstock material for the fabrication of hydrated constructs that replicate the extracellular matrix found in endogenous tissues. Hydrogels have seen significant advancements since their first use as contact lenses in the biomedical field. These advancements have led to the development of complex 3D-printed structures that include a wide variety of organic and inorganic materials, cells, and bioactive substances. The most commonly used 3D printing techniques to fabricate hydrogel scaffolds are material extrusion, material jetting, and vat photopolymerization, but novel methods that can enhance the resolution and structural complexity of printed constructs have also emerged. The biomedical applications of hydrogels can be broadly classified into four categories-tissue engineering and regenerative medicine, 3D cell culture and disease modeling, drug screening and toxicity testing, and novel devices and drug delivery systems. Despite the recent advancements in their biomedical applications, a number of challenges still need to be addressed to maximize the use of hydrogels for 3D printing. These challenges include improving resolution and structural complexity, optimizing cell viability and function, improving cost efficiency and accessibility, and addressing ethical and regulatory concerns for clinical translation.
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Affiliation(s)
- Allan John R. Barcena
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
- College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Kashish Dhal
- Department of Mechanical & Aerospace Engineering, University of Texas at Arlington, Arlington, TX 76019, USA; (K.D.); (P.P.)
| | - Parimal Patel
- Department of Mechanical & Aerospace Engineering, University of Texas at Arlington, Arlington, TX 76019, USA; (K.D.); (P.P.)
| | - Prashanth Ravi
- Department of Radiology, University of Cincinnati, Cincinnati, OH 45219, USA;
| | - Suprateek Kundu
- Department of Biostatistics, Division of Basic Science Research, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Karthik Tappa
- Department of Breast Imaging, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Liu Y, Park CW, Pholprajug P, Suvithayasiri S, Kim JH, Lee C, Kim E, Kim JS. Efficacy of Allograft Versus Bioactive Glass-Ceramic Cage in Anterior Cervical Discectomy and Fusion: A Randomized Controlled Study. Global Spine J 2023:21925682231219225. [PMID: 38030132 DOI: 10.1177/21925682231219225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2023] Open
Abstract
STUDY DESIGN A randomized controlled trial. OBJECTIVE The aim of this study is to compare the efficacy of allografts and bioactive glass-ceramic (BG) cages for anterior cervical discectomy and fusion (ACDF) in treating cervical degenerative disc disease. METHODS We conducted a single-center, randomized controlled trial between August 2017 and August 2022. Participants were randomized into two groups, and consecutive patients requiring ACDF were randomly assigned to receive either the allograft cage or the BG cage. The surgical outcomes measured included pain levels, neck disability, surgical details, and radiological assessments. RESULTS Of the 45 assessed, 40 participants were included, with 18 in the allograft cage group and 22 in the BG cage group. By the 12-month follow-up, both groups exhibited significant improvements in pain levels and disability scores, with no notable intergroup differences. Over 85% of patients in both groups were satisfied with their outcomes. Radiological assessments revealed stability in the cervical spine with both cage types post intervention. Although both materials showed a trend toward increased subsidence over time, the difference between them was not statistically significant. Fusion rates were comparable between the groups at 12 months, with BG cage showing a slightly higher early fusion rate at 6 months. No significant differences were observed between the two groups in terms of complications. CONCLUSIONS Both allograft and BG cages are effective in ACDF surgeries for cervical degenerative disc disease, with both contributing to substantial postoperative improvements. Differences in disc height, interspinous motion, and subsidence were not significant in the last follow-up, indicating both materials' suitability for clinical use. Future research with a larger cohort and longer follow-up is needed to confirm these preliminary findings.
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Affiliation(s)
- Yanting Liu
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chan Woong Park
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Phattareeya Pholprajug
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Department of Orthopedics, Rayong hospital, Rayong, Thailand
| | - Siravich Suvithayasiri
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Department of Orthopedics, Chulabhorn Hospital, Chulabhorn Royal Academy, Bangkok, Thailand
| | - Jung Hoon Kim
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chorong Lee
- The Team of Clinical Research, Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Eun Kim
- The Team of Clinical Research, Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jin-Sung Kim
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Park J, Park SM, Ham DW, Hong JY, Kim HJ, Yeom JS. Anterior Cervical Discectomy and Fusion Performed Using a CaO-SiO 2-P 2O 5-B 2O 3 Bioactive Glass Ceramic or Polyetheretherketone Cage Filled with Hydroxyapatite/β-Tricalcium Phosphate: A Prospective Randomized Controlled Trial. J Clin Med 2023; 12:4069. [PMID: 37373762 DOI: 10.3390/jcm12124069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
A CaO-SiO2-P2O5-B2O3 bioactive glass-ceramic (BGS-7) spacer provides high mechanical stability, produces a chemical bond to the adjacent endplate, and facilitates fusion after spine surgery. This prospective, randomized, single-blind, non-inferiority trial aimed to evaluate the radiographic outcomes and clinical efficacy of anterior cervical discectomy and fusion (ACDF) using a BGS-7 spacer for treating cervical degenerative disorders. Thirty-six patients underwent ACDF using a BGS-7 spacer (Group N), and 40 patients underwent ACDF using polyetheretherketone (PEEK) cages filled with a mixture of hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP) for the treatment of cervical degenerative disorders. The spinal fusion rate was assessed 12 months postoperatively using three-dimensional computed tomography (CT) and dynamic radiographs. Clinical outcomes included patient-reported outcome measures, visual analog scale scores for neck and arm pain, and scores from the neck disability index (NDI), European Quality of Life-5 Dimensions (EQ-5D), and 12-item Short Form Survey (SF-12v2). All participants were randomly assigned to undergo ACDF using either a BGS-7 spacer or PEEK cage filled with HA and β-TCP. The primary outcome was the fusion rate on CT scan image at 12 months after ACDF surgery based on a per-protocol strategy. Clinical outcomes and adverse events were also assessed. The 12-month fusion rates for the BGS-7 and PEEK groups based on CT scans were 81.8% and 74.4%, respectively, while those based on dynamic radiographs were 78.1% and 73.7%, respectively, with no significant difference between the groups. There were no significant differences in the clinical outcomes between the two groups. Neck pain, arm pain, NDI, EQ-5D, and SF-12v2 scores significantly improved postoperatively, with no significant differences between the groups. No adverse events were observed in either group. In ACDF surgery, the BGS-7 spacer showed similar fusion rates and clinical outcomes as PEEK cages filled with HA and β-TCP.
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Affiliation(s)
- Jiwon Park
- Department of Orthopedic Surgery, Korea University Ansan Hospital, Ansan-si 15355, Republic of Korea
| | - Sang-Min Park
- Spine Center and Department of Orthopedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea
| | - Dae-Woong Ham
- Department of Orthopedic Surgery, Chung-Ang University Hospital, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jae-Young Hong
- Department of Orthopedic Surgery, Korea University Ansan Hospital, Ansan-si 15355, Republic of Korea
| | - Ho-Joong Kim
- Spine Center and Department of Orthopedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea
| | - Jin S Yeom
- Spine Center and Department of Orthopedic Surgery, Seoul National University College of Medicine and Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea
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Saberi EA, Farhad Mollashahi N, Ejeian F, Nematollahi M, Shahraki O, Pirhaji A, Nasr-Esfahani MH. Assessment of Cytotoxicity and Odontogenic/Osteogenic Differentiation Potential of Nano-Dentine Cement Against Stem Cells from Apical Papilla. CELL JOURNAL 2022; 24:637-646. [PMID: 36377213 PMCID: PMC9663962 DOI: 10.22074/cellj.2022.8126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Indexed: 01/25/2023]
Abstract
OBJECTIVE Assessment of the cytotoxicity of novel calcium silicate-based cement is imperative in endodontics. This experimental study aimed to assess the cytotoxicity and odontogenic/osteogenic differentiation potential of a new calcium silicate/pectin cement called Nano-dentine against stem cells from the apical papilla (SCAPs). MATERIALS AND METHODS In this experimental study, the cement powder was synthesized by the sol-gel technique. Zirconium oxide was added as opacifier and Pectin, a plant-based polymer, and calcium chloride as the liquid to prepare the nano-based dental cement. Thirty-six root canal dentin blocks of human extracted single-canal premolars with 2 mm height, flared with #1, 2 and 3 Gates-Glidden drills were used to prepare the cement specimens. The cement, namely mineral trioxide aggregate (MTA), Biodentine, and the Nano-dentine were mixed according to the manufacturers' instructions and applied to the roots of canal dentin blocks. The cytotoxicity and odontogenic/osteogenic potential of the cement were evaluated by using SCAPs. RESULTS SCAPs were characterized by the expression of routine mesenchymal cell markers and differentiation potential to adipocytes, osteoblasts, and chondrocytes. Cement displayed no significant differences in cytotoxicity or calcified nodules formation. Gene expression analysis showed that all three types of cement induced significant down- regulation of COLA1; however, the new cement induced significant up-regulation of RUNX2 and SPP1 compared to the control group and MTA. The new cement also induced significant up-regulation of TGFB1 and inducible nitric oxide synthase (iNOS) compared with Biodentine and MTA. CONCLUSION The new Nano-dentin cement has higher odontogenic/osteogenic potential compared to Biodentine and MTA for differentiation of SCAPs to adipocytes, osteoblasts, and chondrocytes.
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Affiliation(s)
- Eshagh Ali Saberi
- Department of Endodontics, Faculty of Dentistry, Oral and Dental Diseases Research Center, Zahedan University of Medical Sciences,
Zahedan, Iran
| | - Narges Farhad Mollashahi
- Department of Endodontics, Faculty of Dentistry, Oral and Dental Diseases Research Center, Zahedan University of Medical Sciences,
Zahedan, Iran
| | - Fatemeh Ejeian
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Marzieh Nematollahi
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Omolbanin Shahraki
- Pharmacology Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Arezoo Pirhaji
- Department of Endodontics, Faculty of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran,P.O.Box: 9817699693Department of EndodonticsFaculty of DentistryZahedan University of Medical
SciencesZahedanIranP.O.Box: 8159358686Department of Animal BiotechnologyCell Science Research CenterRoyan Institute for BiotechnologyACECRIsfahanIran
Emails:,
| | - Mohammad Hossein Nasr-Esfahani
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran,P.O.Box: 9817699693Department of EndodonticsFaculty of DentistryZahedan University of Medical
SciencesZahedanIranP.O.Box: 8159358686Department of Animal BiotechnologyCell Science Research CenterRoyan Institute for BiotechnologyACECRIsfahanIran
Emails:,
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7
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Jo CH, Voronina N, Sun YK, Myung ST. Gifts from Nature: Bio-Inspired Materials for Rechargeable Secondary Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006019. [PMID: 34337779 DOI: 10.1002/adma.202006019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 01/29/2021] [Indexed: 06/13/2023]
Abstract
Materials in nature have evolved to the most efficient forms and have adapted to various environmental conditions over tens of thousands of years. Because of their versatile functionalities and environmental friendliness, numerous attempts have been made to use bio-inspired materials for industrial applications, establishing the importance of biomimetics. Biomimetics have become pivotal to the search for technological breakthroughs in the area of rechargeable secondary batteries. Here, the characteristics of bio-inspired materials that are useful for secondary batteries as well as their benefits for application as the main components of batteries (e.g., electrodes, separators, and binders) are discussed. The use of bio-inspired materials for the synthesis of nanomaterials with complex structures, low-cost electrode materials prepared from biomass, and biomolecular organic electrodes for lithium-ion batteries are also introduced. In addition, nature-derived separators and binders are discussed, including their effects on enhancing battery performance and safety. Recent developments toward next-generation secondary batteries including sodium-ion batteries, zinc-ion batteries, and flexible batteries are also mentioned to understand the feasibility of using bio-inspired materials in these new battery systems. Finally, current research trends are covered and future directions are proposed to provide important insights into scientific and practical issues in the development of biomimetics technologies for secondary batteries.
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Affiliation(s)
- Chang-Heum Jo
- Hybrid Materials Research Center, Department of Nano Technology and Advanced Materials Engineering & Sejong Battery Institute, Sejong University, Gunja-dong, Gwangjin-gu, Seoul, 05006, South Korea
| | - Natalia Voronina
- Hybrid Materials Research Center, Department of Nano Technology and Advanced Materials Engineering & Sejong Battery Institute, Sejong University, Gunja-dong, Gwangjin-gu, Seoul, 05006, South Korea
| | - Yang-Kook Sun
- Department of Energy Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Seung-Taek Myung
- Hybrid Materials Research Center, Department of Nano Technology and Advanced Materials Engineering & Sejong Battery Institute, Sejong University, Gunja-dong, Gwangjin-gu, Seoul, 05006, South Korea
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8
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Mokhtarzadegan M, Zebarjad SM, Bahrololoom ME, Modarres M. Effect of sodium chloride as a porogen agent in mechanical properties of PLGA/HA nanocomposite scaffolds. Biomed Phys Eng Express 2021; 7:035009. [PMID: 33843657 DOI: 10.1088/2057-1976/ab61c1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
In this study, the novel poly (lactic-co-glycolic acid)-Hydroxyapatite nanoparticles (PLGA/HA) nanocomposite scaffolds were fabricated with solvent casting and particulate leaching (SCPL) method. The role of sodium chloride (NaCl) particles with diameters of 250-400 μm as porogen agent in the mechanical strength of the produced scaffolds was evaluated. The prepared scaffolds were characterized using Fourier transform infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), thermal gravimetric analysis (TGA) and compressive tests. The results showed the high compressive strength and homogenous porous structures for PLGA/HA nanocomposite scaffolds compared to pure PLGA due to the presence of HA nanoparticles in nanocomposites. Furthermore, the compressive strength of nanocomposite scaffolds increased by varying the weight ratio of hydroxyapatite nanoparticles to polymer (0, 20, 40 wt%) at constant salt ratio and decreased by increasing the weight ratio of salt particles to polymer from 1 to 3 wt% due to more porosity in nanocomposite scaffolds. These results confirmed that not only the nanocomposite scaffolds exhibited high mechanical properties, homogenous structures, as well as good porosity but also, they could be useful for bone tissue application.
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Affiliation(s)
- M Mokhtarzadegan
- Department of Materials Science and Engineering, Shiraz University, Shiraz, Iran
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Lim S, Jeong D, Ki MR, Pack SP, Choi YS. Tyrosinase-mediated rapid and permanent chitosan/gelatin and chitosan/gelatin/nanohydroxyapatite hydrogel. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-020-0672-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Liu X, Wei Y, Xuan C, Liu L, Lai C, Chai M, Zhang Z, Wang L, Shi X. A Biomimetic Biphasic Osteochondral Scaffold with Layer-Specific Release of Stem Cell Differentiation Inducers for the Reconstruction of Osteochondral Defects. Adv Healthc Mater 2020; 9:e2000076. [PMID: 32338462 DOI: 10.1002/adhm.202000076] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/07/2020] [Accepted: 03/31/2020] [Indexed: 01/19/2023]
Abstract
There is a great challenge in regenerating osteochondral defects because they involve lesions of both cartilage and subchondral bone, which have remarkable differences in their chemical compositions and biological lineages. Thus, considering the complicated requirements in osteochondral reconstruction, a biomimetic biphasic osteochondral scaffold (BBOS) with the layer-specific release of stem cell differentiation inducers are developed. The cartilage regeneration layer (cartilage scaffold, CS) in the BBOS contains a hyaluronic acid hydrogel to mimic the composition of cartilage, which is mechanically enhanced by host-guest supramolecular units to control the release of kartogenin (KGN). Additionally, a 3D-printed hydroxyapatite (HAp) scaffold releasing alendronate (ALN) is employed as the bone-regeneration layer (bone scaffold, BS). The two layers are bound by semi-immersion and could regulate the hierarchical targeted differentiation behavior of the stem cells. Compared to the drug-free scaffold, the MSCs in the BBOS could be promoted to differentiate into both chondrocytes and osteoblasts. The in vivo results demonstrate the strong promotion of cartilage or bone regeneration in their respective layers. It is expected that this BBOS with layer-specific inducer release can become a new strategy for osteochondral regeneration.
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Affiliation(s)
- Xuemin Liu
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Yingqi Wei
- Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China
| | - Chengkai Xuan
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Lei Liu
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, China
| | - Chen Lai
- Peking University Shenzhen Institute, Peking University, Shenzhen, 518055, China
| | - Muyuan Chai
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Zhaoguo Zhang
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Lin Wang
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Xuetao Shi
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, 510006, China
- Peking University Shenzhen Institute, Peking University, Shenzhen, 518055, China
- China Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, 510005, China
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11
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Lee UL, Lim JY, Park SN, Choi BH, Kang H, Choi WC. A Clinical Trial to Evaluate the Efficacy and Safety of 3D Printed Bioceramic Implants for the Reconstruction of Zygomatic Bone Defects. MATERIALS 2020; 13:ma13204515. [PMID: 33053855 PMCID: PMC7601564 DOI: 10.3390/ma13204515] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/06/2020] [Accepted: 10/09/2020] [Indexed: 11/16/2022]
Abstract
The purpose of this study was to evaluate the clinical efficacy and safety of patient-specific additive-manufactured CaOSiO2-P2O5-B2O3 glass-ceramic (BGS-7) implants for reconstructing zygomatic bone defects at a 6-month follow-up. A prospective, single-arm, single-center, clinical trial was performed on patients with obvious zygoma defects who needed and wanted reconstruction. The primary outcome variable was a bone fusion between the implant and the bone evaluated by computed tomography (CT) at 6 months post surgery. Secondary outcomes, including implant immobilization, satisfaction assessment, osteolysis, subsidence of the BGS-7 implant, and safety, were assessed. A total of eight patients were enrolled in the study. Two patients underwent simultaneous reconstruction of the left and right malar defects using a BGS-7 3D printed implant. Cone beam CT analysis showed that bone fusion at 6 months after surgery was 100%. We observed that the average fusion rate was 76.97%. Osteolysis around 3D printed BGS-7 implants was not observed. The mean distance displacement of all 10 implants was 0.4149 mm. Our study showed no adverse event in any of the cases. The visual analog scale score for satisfaction was 9. All patients who enrolled in this trial were aesthetically and functionally satisfied with the surgical results. In conclusion, this study demonstrates the safety and promising value of patient-specific 3D printed BGS-7 implants as a novel facial bone reconstruction method.
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Affiliation(s)
- Ui-Lyong Lee
- Department of Oral and Maxillofacial Surgery, Chung-Ang University Hospital, Soeul 06973, Korea
- Chung-Ang 3D Craniofacial Research Society, Chun-Ang University, Seoul 06974, Korea
- Correspondence: (U.-L.L.); (W.-C.C.)
| | - Jun-Young Lim
- CGbio 3D Innovation Center, Seongnam-si 13211, Korea; (J.-Y.L.); (S.-N.P.); (B.-H.C.)
| | - Sung-Nam Park
- CGbio 3D Innovation Center, Seongnam-si 13211, Korea; (J.-Y.L.); (S.-N.P.); (B.-H.C.)
| | - Byoung-Hun Choi
- CGbio 3D Innovation Center, Seongnam-si 13211, Korea; (J.-Y.L.); (S.-N.P.); (B.-H.C.)
| | - Hyun Kang
- Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, Seoul 06974, Korea;
| | - Won-Cheul Choi
- Chung-Ang 3D Craniofacial Research Society, Chun-Ang University, Seoul 06974, Korea
- Department of Orthodontics, Chung-Ang University Hospital, Seoul 06974, Korea
- Correspondence: (U.-L.L.); (W.-C.C.)
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Choi YJ, Bae MK, Kim YI, Park JK, Son SA. Effects of microsurface structure of bioactive nanoparticles on dentinal tubules as a dentin desensitizer. PLoS One 2020; 15:e0237726. [PMID: 32813737 PMCID: PMC7437925 DOI: 10.1371/journal.pone.0237726] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 08/01/2020] [Indexed: 11/25/2022] Open
Abstract
In this in vitro study, spherical mesoporous bioactive glass nanoparticle (MBGN) and non-porous bioactive glass nanoparticle (BGN) were fabricated. The impact of mesopores on dentinal tubule occlusion and bioactivity was compared to examine the potential of these materials in alleviating dentine hypersensitivity (DH). MBGN, dense BGN were synthesized by sol-gel methods and characterized. Bioactivity and ion dissolution ability were analyzed. Twenty-four simulated sensitive dentin discs were prepared and randomly divided into three groups (n = 8 each); Group 1, no treatment; Group 2, Dense BGN; Group 3, MBGN. Then, four discs per group were treated with 6wt.% citric acid challenge to determine the acidic resistance. The effects on dentinal tubule occlusion were observed by FESEM. The microtensile bond strength (MTBS) was also measured. Cytotoxicity was examined using the MTT assay. According to the results, dense BGN without mesopore and MBGN with mesopore were successfully fabricated. Dense BGN and MBGN occluded the dentinal tubule before and after acid challenge. However, only MBGN formed a membrane-like layer and showed hydroxyapatite formation after soaking SBF solution. There were no significant differences in MTBS among dense BGN, MBGN (P>0.05). The cell viability was above 72% of both materials. The higher bioactivity of MBGN compared with that of dense BGN arises from the structural difference and it is anticipated to facilitate dentin remineralization by inducing hydroxyapatite deposition within the dentinal tubule.
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Affiliation(s)
- Yang-Jung Choi
- Department of Conservative Dentistry, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Gyeongsangnam-do, Korea
| | - Moon-Kyoung Bae
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan, Gyeongsangnam-do, Korea
| | - Yong-Il Kim
- Department of Orthodontics, Dental Research Institute, Pusan National University Dental Hospital, Yangsan, Gyeongsangnam-do, Korea
| | - Jeong-Kil Park
- Department of Conservative Dentistry, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Gyeongsangnam-do, Korea
| | - Sung-Ae Son
- Department of Conservative Dentistry, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Gyeongsangnam-do, Korea
- * E-mail:
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Vannozzi L, Gouveia P, Pingue P, Canale C, Ricotti L. Novel Ultrathin Films Based on a Blend of PEG- b-PCL and PLLA and Doped with ZnO Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2020; 12:21398-21410. [PMID: 32302103 DOI: 10.1021/acsami.0c00154] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
In this paper, a novel nanofilm type is proposed based on a blend of poly(ethylene glycol)-block-poly(ε-caprolactone) methyl ether (PEG-b-PCL) and poly(l-lactic acid), doped with zinc oxide nanoparticles (ZnO NPs) at different concentrations (0.1, 1, and 10 mg/mL). All nanofilm types were featured by a thickness value of ∼500 nm. Increasing ZnO NP concentrations implied larger roughness values (∼22 nm for the bare nanofilm and ∼67 nm for the films with 10 mg/mL of NPs), larger piezoelectricity (average d33 coefficient for the film up to ∼1.98 pm/V), and elastic modulus: the nanofilms doped with 1 and 10 mg/mL of NPs were much stiffer than the nondoped controls and nanofilms doped with 0.1 mg/mL of NPs. The ZnO NP content was also directly proportional to the material melting point and crystallinity and inversely proportional to the material degradation rate, thus highlighting the stabilization role of ZnO particles. In vitro tests were carried out with cells of the musculoskeletal apparatus (fibroblasts, osteoblasts, chondrocytes, and myoblasts). All cell types showed good adhesion and viability on all substrate formulations. Interestingly, a higher content of ZnO NPs in the matrix demonstrated higher bioactivity, boosting the metabolic activity of fibroblasts, myoblasts, and chondrocytes and enhancing the osteogenic and myogenic differentiation. These findings demonstrated the potential of these nanocomposite matrices for regenerative medicine applications, such as tissue engineering.
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Affiliation(s)
- Lorenzo Vannozzi
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertá 33, 56127 Pisa, Italy
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Liberta 33, 56127 Pisa, Italy
| | - Pedro Gouveia
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertá 33, 56127 Pisa, Italy
- Tissue Engineering Research Group, Department of Anatomy & Regenerative Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin D02 YN77, Ireland
| | - Pasqualantonio Pingue
- NEST, Scuola Normale Superiore and CNR Istituto Nanoscienze, Piazza San Silvestro 12, 56127 Pisa (PI), Italy
| | - Claudio Canale
- Department of Physics, University of Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - Leonardo Ricotti
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertá 33, 56127 Pisa, Italy
- Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Liberta 33, 56127 Pisa, Italy
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Messias NS, Grisote G, Martorano AS, Fernandes RR, Oliveira IRD, Bombonato-Prado KF, Oliveira PTD, Castro-Raucci LMSD. Impact of calcium aluminate cement with additives on dental pulp-derived cells. J Appl Oral Sci 2019; 28:e20190105. [PMID: 31800873 PMCID: PMC6886393 DOI: 10.1590/1678-7757-2019-0105] [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: 02/19/2019] [Accepted: 06/10/2019] [Indexed: 11/29/2022] Open
Abstract
Calcium aluminate cement (CAC) has been highlighted as a promising alternative for endodontic use aiming at periapical tissue repair. However, its effects on dental pulp cells have been poorly explored. Objective: This study assessed the impact of calcium chloride (CaCl2) and bismuth oxide (Bi2O3) or zinc oxide (ZnO) additives on odontoblast cell response to CAC. Methodology: MDPC-23 cells were exposed for up to 14 d: 1) CAC with 2.8% CaCl2 and 25% ZnO (CACz); 2) CAC with 2.8% CaCl2 and 25% Bi2O3 (CACb); 3) CAC with 10% CaCl2 and 25% Bi2O3 (CACb+); or 4) mineral trioxide aggregate (MTA), placed on inserts. Non-exposed cultures served as control. Cell morphology, cell viability, gene expression of alkaline phosphatase (ALP), bone sialoprotein (BSP), and dentin matrix protein 1 (DMP-1), ALP activity, and extracellular matrix mineralization were evaluated. Data were compared using ANOVA (α=5%). Results: Lower cell density was detected only for MTA and CACb+ compared with Control, with areas showing reduced cell spreading. Cell viability was similar among groups at days one and three (p>0.05). CACb+ and MTA showed the lowest cell viability values at day seven (p>0.05). CACb and CACb+ promoted higher ALP and BSP expression compared with CACz (p<0.05); despite that, all cements supported ALP activity. Matrix mineralization were enhanced in CACb+ and MTA. Conclusion: In conclusion, CAC with Bi2O3, but not with ZnO, supported the expression of odontoblastic phenotype, but only the composition with 10% CaCl2 promoted mineralized matrix formation, rendering it suitable for dentin-pulp complex repair.
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Affiliation(s)
- Nadyne Saab Messias
- Universidade de Ribeirão Preto, Faculdade de Odontologia, Ribeirão Preto, SP, Brasil
| | - Gabriela Grisote
- Universidade de Ribeirão Preto, Faculdade de Odontologia, Ribeirão Preto, SP, Brasil
| | | | - Roger Rodrigo Fernandes
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Ribeirão Preto, SP, Brasil
| | - Ivone Regina de Oliveira
- Universidade do Vale do Paraíba, Instituto de Pesquisa e Desenvolvimento, São José dos Campos, SP, Brasil
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Effects of Poly(Amidoamine) Dendrimer-Coated Mesoporous Bioactive Glass Nanoparticles on Dentin Remineralization. NANOMATERIALS 2019; 9:nano9040591. [PMID: 30974829 PMCID: PMC6523905 DOI: 10.3390/nano9040591] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 03/28/2019] [Accepted: 04/06/2019] [Indexed: 11/30/2022]
Abstract
Dentin hypersensitivity (DH) is one of the most common clinical conditions usually associated with exposed dentinal surfaces. In this study, we identified the effectiveness of poly(amidoamine) (PAMAM) dendrimer-coated mesoporous bioactive glass nanoparticles (MBN) (PAMAM@MBN) on DH treatment, examining the ion-releasing effect, dentin remineralization, and the occluding effect of dentinal tubules. We synthesized MBN and PAMAM@MBN. After soaking each sample in simulated body fluid (SBF), we observed ion-releasing effects and dentin remineralization effects for 30 days. Also, we prepared 30 premolars to find the ratio of occluded dentinal tubules after applying MBN and PAMAM@MBN, respectively. The results showed that PAMAM did not disrupt the calcium ion-releasing ability or the dentin remineralization of MBN. The PAMAM@MBN showed a better occluding effect for dentinal tubules than that of MBN (p < 0.05). In terms of dentinal tubule occlusion, the gap between MBN was well occluded due to PAMAM. This implies that PAMAM@MBN could be effectively used in dentinal tubule sealing and remineralization.
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Ambekar RS, Kandasubramanian B. Progress in the Advancement of Porous Biopolymer Scaffold: Tissue Engineering Application. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05334] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Rushikesh S. Ambekar
- Rapid Prototype & Electrospinning Lab, Department of Metallurgical and Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune 411025, India
| | - Balasubramanian Kandasubramanian
- Rapid Prototype & Electrospinning Lab, Department of Metallurgical and Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune 411025, India
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Venezuela J, Dargusch M. The influence of alloying and fabrication techniques on the mechanical properties, biodegradability and biocompatibility of zinc: A comprehensive review. Acta Biomater 2019; 87:1-40. [PMID: 30660777 DOI: 10.1016/j.actbio.2019.01.035] [Citation(s) in RCA: 145] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/14/2019] [Accepted: 01/16/2019] [Indexed: 01/14/2023]
Abstract
Zinc has been identified as one of the most promising biodegradable metals along with magnesium and iron. Zinc appears to address some of the core engineering problems associated with magnesium and iron when applied to biomedical implant applications; hence the increase in the amount of research investigations on the metal in the last few years. In this review, the current state-of-the-art on biodegradable Zn, including recent developments, current opportunities and future directions of research are discussed. The discussions are presented with a specific focus on reviewing the relationships that exist between mechanical properties, biodegradability, and biocompatibility of zinc with alloying and fabrication techniques. This work hopes to guide future studies on biodegradable Zn that will help in advancing this field of research. STATEMENT OF SIGNIFICANCE: (i) The review offers an up-to-date and comprehensive review of the influence of alloying and fabrication technique on mechanical properties, biodegradability and biocompatibility of Zn; (ii) the work cites the most relevant biodegradable Zn fabrication processes including additive manufacturing techniques; (iii) the review includes a listing of research gap and future research directions for the field of biodegradable Zn.
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18
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Smith BT, Lu A, Watson E, Santoro M, Melchiorri AJ, Grosfeld EC, van den Beucken JJJP, Jansen JA, Scott DW, Fisher JP, Mikos AG. Incorporation of fast dissolving glucose porogens and poly(lactic-co-glycolic acid) microparticles within calcium phosphate cements for bone tissue regeneration. Acta Biomater 2018; 78:341-350. [PMID: 30075321 PMCID: PMC6650161 DOI: 10.1016/j.actbio.2018.07.054] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/17/2018] [Accepted: 07/30/2018] [Indexed: 01/10/2023]
Abstract
This study investigated the effects of incorporating glucose microparticles (GMPs) and poly(lactic-co-glycolic acid) microparticles (PLGA MPs) within a calcium phosphate cement on the cement's handling, physicochemical properties, and the respective pore formation. Composites were fabricated with two different weight fractions of GMPs (10 and 20 wt%) and two different weight fractions of PLGA MPs (10 and 20 wt%). Samples were assayed for porosity, pore morphology, and compressive mechanical properties. An in vitro degradation study was also conducted. Samples were exposed to a physiological solution for 3 days, 4 wks, and 8 wks in order to understand how the inclusion of GMPs and PLGA MPs affects the composite's porosity and mass loss over time. GMPs and PLGA MPs were both successfully incorporated within the composites and all formulations showed an initial setting time that is appropriate for clinical applications. Through a main effects analysis, we observed that the incorporation of GMPs had a significant effect on the overall porosity, mean pore size, mode pore size, and in vitro degradation rate of PLGA MPs as early as after 3 days (p < 0.05). After 4 wks and 8 wks, these same properties were affected by the inclusion of both types of MPs (p < 0.05). Advanced polymer chromatography confirmed that the degradation of PLGA MPs coincided with an increase in composite porosity, mean pore size, and mode pore size. Finally, it was observed that the inclusion of GMPs slowed the degradation of PLGA MPs in vitro and reduced the solution acidity due to PLGA degradation products. Our results suggest that the dual inclusion of GMPs and PLGA MPs is a valuable approach for the generation of early macropores, while also mitigating the effect of acidic degradation products from PLGA MPs on their degradation kinetics. STATEMENT OF SIGNIFICANCE A multitude of strategies and techniques have been investigated for the introduction of macropores with calcium phosphate cements (CPC). However, many of these strategies take several weeks to months to generate a maximal porosity or the degradation products of the porogen can trigger a localized inflammatory response in vivo. As such, it was hypothesized that the fast dissolution of glucose microparticles (GMPs) in a CPC composite also incorporating poly(lactic-co-glycolic acid) (PLGA) microparticles (MPs) will create an initial macroporosity and increase the surface area within the CPC, thus enhancing the diffusion of PLGA degradation products and preventing a significant decrease in pH. Furthermore, as PLGA degradation occurs over several weeks to months, additional macroporosity will be generated at later time points within CPCs. The results offer a new method for generating macroporosity in a multimodal fashion that also mitigates the effects of acidic degradation products.
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Affiliation(s)
- Brandon T Smith
- Department of Bioengineering, Rice University, 6500 Main Street, Houston, TX 77030, USA; Biomaterials Lab, Rice University, 6500 Main Street, Houston, TX 77030, USA; NIH / NIBIB Center for Engineering Complex Tissues, USA; Medical Scientist Training Program, Baylor College of Medicine, Houston, TX, USA
| | - Alexander Lu
- Department of Bioengineering, Rice University, 6500 Main Street, Houston, TX 77030, USA
| | - Emma Watson
- Department of Bioengineering, Rice University, 6500 Main Street, Houston, TX 77030, USA; Biomaterials Lab, Rice University, 6500 Main Street, Houston, TX 77030, USA; NIH / NIBIB Center for Engineering Complex Tissues, USA; Medical Scientist Training Program, Baylor College of Medicine, Houston, TX, USA
| | - Marco Santoro
- NIH / NIBIB Center for Engineering Complex Tissues, USA; Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Dr, College Park, MD 20742, USA
| | - Anthony J Melchiorri
- Biomaterials Lab, Rice University, 6500 Main Street, Houston, TX 77030, USA; NIH / NIBIB Center for Engineering Complex Tissues, USA
| | - Eline C Grosfeld
- Department of Biomaterials, Radboudumc, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
| | | | - John A Jansen
- Department of Biomaterials, Radboudumc, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
| | - David W Scott
- Department of Statistics, Rice University, 6500 Main Street, Houston, TX 77030, USA
| | - John P Fisher
- NIH / NIBIB Center for Engineering Complex Tissues, USA; Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Dr, College Park, MD 20742, USA
| | - Antonios G Mikos
- Department of Bioengineering, Rice University, 6500 Main Street, Houston, TX 77030, USA; Biomaterials Lab, Rice University, 6500 Main Street, Houston, TX 77030, USA; NIH / NIBIB Center for Engineering Complex Tissues, USA.
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19
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Chen Y, Wang J, Zhu X, Chen X, Yang X, Zhang K, Fan Y, Zhang X. The directional migration and differentiation of mesenchymal stem cells toward vascular endothelial cells stimulated by biphasic calcium phosphate ceramic. Regen Biomater 2018; 5:129-139. [PMID: 29977596 PMCID: PMC6007427 DOI: 10.1093/rb/rbx028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 09/15/2017] [Accepted: 09/20/2017] [Indexed: 12/12/2022] Open
Abstract
Osteoinductivity of porous calcium phosphate (CaP) ceramics has been widely investigated and confirmed, and it might be attributed to the rapid formation of the vascular networks after in vivo implantation of the ceramics. In this study, to explore the vascularization mechanism within the CaP ceramics, the migration and differentiation of bone marrow-derived mesenchymal stem cells (BMSCs) under the stimulation of porous biphasic calcium phosphate (BCP) ceramic with excellent osteoinductivity were systematically investigated. The results indicated that the directional migration of BMSCs toward BCP ceramic occurred when evaluated by using a transwell model, and the BMSCs migration was enhanced by the seeded macrophages on the ceramic in advance. Besides, by directly culturing BMSCs on BCP ceramic discs under both in vitro and in vivo physiological environment, it was found that the differentiation of BMSCs toward vascular endothelial cells (VECs) happened under the stimulation of BCP ceramic, as was confirmed by the up-regulated gene expressions and protein secretions of VECs-related characteristic factors, including kinase insert domain receptor, von willebrand factor, vascular cell adhesion molecule-1 and cadherin 5 in the BMSCs. This study offered a possibility for explaining the origin of VECs during the rapid vascularization process after in vivo implantation of porous CaP ceramics and could give some useful guidance to reveal the vascularization mechanism of the ceramics.
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Affiliation(s)
- Ying Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Jing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xuening Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xiao Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Kai Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
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Tulyaganov D, Abdukayumov K, Ruzimuradov O, Hojamberdiev M, Ionescu E, Riedel R. Effect of Alumina Incorporation on the Surface Mineralization and Degradation of a Bioactive Glass (CaO-MgO-SiO₂-Na₂O-P₂O₅-CaF₂)-Glycerol Paste. MATERIALS 2017; 10:ma10111324. [PMID: 29156541 PMCID: PMC5706271 DOI: 10.3390/ma10111324] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 11/13/2017] [Accepted: 11/15/2017] [Indexed: 11/16/2022]
Abstract
This study investigates the dissolution behavior as well as the surface biomineralization in simulated body fluid (SBF) of a paste composed of glycerol (gly) and a bioactive glass in the system CaO-MgO-SiO2-Na2O-P2O5-CaF2 (BG). The synthesis of the bioactive glass in an alumina crucible has been shown to significantly affect its bioactivity due to the incorporation of aluminum (ca. 1.3–1.4 wt %) into the glass network. Thus, the kinetics of the hydroxyapatite (HA) mineralization on the glass prepared in the alumina crucible was found to be slower than that reported for the same glass composition prepared in a Pt crucible. It is considered that the synthesis conditions lead to the incorporation of small amount of aluminum into the BG network and thus delay the HA mineralization. Interestingly, the BG-gly paste was shown to have significantly higher bioactivity than that of the as-prepared BG. Structural analysis of the paste indicate that glycerol chemically interacts with the glass surface and strongly alter the glass network architecture, thus generating a more depolymerized network, as well as an increased amount of silanol groups at the surface of the glass. In particular, BG-gly paste features early intermediate calcite precipitation during immersion in SBF, followed by hydroxyapatite formation after ca. seven days of SBF exposure; whereas the HA mineralization seems to be suppressed in BG, probably a consequence of the incorporation of aluminum into the glass network. The results obtained within the present study reveal the positive effect of using pastes based on bioactive glasses and organic carriers (here alcohols) which may be of interest not only due to their advantageous visco-elastic properties, but also due to the possibility of enhancing the glass bioactivity upon surface interactions with the organic carrier.
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Affiliation(s)
- Dilshat Tulyaganov
- Turin Polytechnic University in Tashkent, 17, Niyazova 100095, Uzbekistan.
| | - Khasan Abdukayumov
- Turin Polytechnic University in Tashkent, 17, Niyazova 100095, Uzbekistan.
| | - Olim Ruzimuradov
- Turin Polytechnic University in Tashkent, 17, Niyazova 100095, Uzbekistan.
| | | | - Emanuel Ionescu
- Institute for Materials Science, Technische Universität Darmstadt, Jovanka-Bontschits-Strasse 2, D-64287 Darmstadt, Germany.
| | - Ralf Riedel
- Institute for Materials Science, Technische Universität Darmstadt, Jovanka-Bontschits-Strasse 2, D-64287 Darmstadt, Germany.
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Case study: Reinforcement of 45S5 bioglass robocast scaffolds by HA/PCL nanocomposite coatings. J Mech Behav Biomed Mater 2017; 75:114-118. [DOI: 10.1016/j.jmbbm.2017.07.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 07/04/2017] [Accepted: 07/06/2017] [Indexed: 11/23/2022]
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Guo J, Li C, Ling S, Huang W, Chen Y, Kaplan DL. Multiscale design and synthesis of biomimetic gradient protein/biosilica composites for interfacial tissue engineering. Biomaterials 2017; 145:44-55. [PMID: 28843732 PMCID: PMC5610098 DOI: 10.1016/j.biomaterials.2017.08.025] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 07/16/2017] [Accepted: 08/14/2017] [Indexed: 01/13/2023]
Abstract
Continuous gradients present at tissue interfaces such as osteochondral systems, reflect complex tissue functions and involve changes in extracellular matrix compositions, cell types and mechanical properties. New and versatile biomaterial strategies are needed to create suitable biomimetic engineered grafts for interfacial tissue engineering. Silk protein-based composites, coupled with selective peptides with mineralization domains, were utilized to mimic the soft-to-hard transition in osteochondral interfaces. The gradient composites supported tunable mineralization and mechanical properties corresponding to the spatial concentration gradient of the mineralization domains (R5 peptide). The composite system exhibited continuous transitions in terms of composition, structure and mechanical properties, as well as cytocompatibility and biodegradability. The gradient silicified silk/R5 composites promoted and regulated osteogenic differentiation of human mesenchymal stem cells in an osteoinductive environment in vitro. The cells differentiated along the composites in a manner consistent with the R5-gradient profile. This novel biomimetic gradient biomaterial design offers a useful approach to meet a broad range of needs in regenerative medicine.
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Affiliation(s)
- Jin Guo
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA; Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Chunmei Li
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Shengjie Ling
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA; Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Wenwen Huang
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Ying Chen
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA.
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Immunotoxicity evaluation of novel bioactive composites in male mice as promising orthopaedic implants. Cent Eur J Immunol 2017; 42:54-67. [PMID: 28680331 PMCID: PMC5470614 DOI: 10.5114/ceji.2017.67318] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 09/08/2016] [Indexed: 12/03/2022] Open
Abstract
Objective In orthopaedics, novel bioactive composites are largely needed to improve the synthetic achievement of the implants. In this work, semiconducting metal oxides such as SiO2, TiO2, and ZrO2 particles (Ps) were used individually and in different ratios to obtain different biphasic composites. The immunotoxicity of these composites was tested to inspect the potential toxicity prior to their use in further medical applications. Materials and methods In vitro mineralisation ability was inspected by soaking the composites in simulated body fluid (SBF). Additionally, in vivo experiments were performed consuming male mice using ISSR-PCR, micronucleus (MN) test, comet assay, glutathione peroxidase activity, and determination of albumin, globulin, lymphocyte population, ALT, and AST levels. Several groups of adult male albino mice were treated with 100, 200, and 400 mg/kg body weight of SiO2, TiO2, and ZrO2-Ps in pure or mixed forms. Results Our findings revealed that treatment of mice with low and medium doses of SiO2, TiO2, and ZrO2-Ps in pure or mixed form revealed values relatively similar to the control group. However, using 400 mg/kg especially from TiO2-Ps in genuine form or mixed with SiO2 showed proliferation in the toxicity rates compared with the high dose of SiO2 and ZrO2-Ps. Conclusions The results suggest that TiO2 composite induced in vivo toxicity, oxidative DNA damage, bargain of the antioxidant enzymes, and variations in the levels of albumin, globulin, lymphocyte population, ALT, and AST in a dose-dependent manner. However, SiO2, and ZrO2 composites revealed a lower toxicity in mice compared with that of TiO2.
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Juraski ADC, Rodas ACD, Elsayed H, Bernardo E, Soares VO, Daguano J. The In Vitro Bioactivity, Degradation, and Cytotoxicity of Polymer-Derived Wollastonite-Diopside Glass-Ceramics. MATERIALS 2017; 10:ma10040425. [PMID: 28772783 PMCID: PMC5506970 DOI: 10.3390/ma10040425] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 03/24/2017] [Accepted: 04/12/2017] [Indexed: 11/16/2022]
Abstract
Ca-Mg silicates are receiving a growing interest in the field of bioceramics. In a previous study, wollastonite-diopside (WD) glass-ceramics were successfully prepared by a new processing route, consisting of the heat treatment of a silicone resin embedding reactive oxide particles and a Ca/Mg-rich glass. The in vitro degradation, bioactivity, and cell response of these new WD glass-ceramics, fired at 900-1100 °C for 1 h, as a function of the Ca/Mg-rich glass content, are the aim of this investigation The results showed that WD glass-ceramics from formulations comprising different glass contents (70-100% at 900 °C, 30% at 1100 °C) exhibit the formation of an apatite-like layer on their surface after immersion in SBF for seven days, thus confirming their surface bioactivity. The XRD results showed that these samples crystallized, mainly forming wollastonite (CaSiO₃) and diopside (CaMgSi₂O₆), but combeite (Na₂Ca₂Si₃O₉) crystalline phase was also detected. Besides in vitro bioactivity, cytotoxicity and osteoblast adhesion and proliferation tests were applied after all characterizations, and the formulation comprising 70% glass was demonstrated to be promising for further in vivo studies.
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Affiliation(s)
- Amanda De Castro Juraski
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Federal University of ABC, Santo André 09210-580, Brazil.
| | - Andrea Cecilia Dorion Rodas
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Federal University of ABC, Santo André 09210-580, Brazil.
| | - Hamada Elsayed
- Dipartimento di Ingegneria Industriale, University of Padova, Padova 35131, Italy.
- Ceramics Department, National Research Centre, El-Bohous Street, 12622 Cairo, Egypt.
| | - Enrico Bernardo
- Dipartimento di Ingegneria Industriale, University of Padova, Padova 35131, Italy.
| | | | - Juliana Daguano
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Federal University of ABC, Santo André 09210-580, Brazil.
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Zhuang C, Ke X, Jin Z, Zhang L, Yang X, Xu S, Yang G, Xie L, Prince GAE, Pan Z, Gou Z. Core–shell-structured nonstoichiometric bioceramic spheres for improving osteogenic capability. J Mater Chem B 2017; 5:8944-8956. [PMID: 32264121 DOI: 10.1039/c7tb02295f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Precisely controlling the composition distribution and pore-network evolution in the foreign ion doped, core–shell Ca-silicate bioceramic microspheres is favorable for tailoring osteogenicity in critical size bone defects.
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The effective role of alkali earth/alkali ratio on formation HCA nano particles for soda lime phospho silicate glass system. OPENNANO 2017. [DOI: 10.1016/j.onano.2017.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abstract
Tissue engineering aims to repair the damaged tissue by transplantation of cells or introducing bioactive factors in a biocompatible scaffold. In recent years, biodegradable polymer scaffolds mimicking the extracellular matrix have been developed to promote the cell proliferation and extracellular matrix deposition. The biodegradable polymer scaffolds thus act as templates for tissue repair and regeneration. This article reviews the updated information regarding various types of natural and synthetic biodegradable polymers as well as their functions, physico-chemical properties, and degradation mechanisms in the development of biodegradable scaffolds for tissue engineering applications, including their combination with 3D printing.
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Affiliation(s)
- Shan-Hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan, ROC.
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Lee JH, Kong CB, Yang JJ, Shim HJ, Koo KH, Kim J, Lee CK, Chang BS. Comparison of fusion rate and clinical results between CaO-SiO 2-P 2O 5-B 2O 3 bioactive glass ceramics spacer with titanium cages in posterior lumbar interbody fusion. Spine J 2016; 16:1367-1376. [PMID: 27498334 DOI: 10.1016/j.spinee.2016.07.531] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Revised: 06/13/2016] [Accepted: 07/28/2016] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT The CaO-SiO2-P2O5-B2O3 glass ceramics spacer generates chemical bonding to adjacent bones with high mechanical stability to produce a union with the end plate, and ultimately stability. PURPOSE The authors aimed to compare the clinical efficacy and safety of CaO-SiO2-P2O5-B2O3 glass ceramics with a titanium cage that is widely used for posterior lumbar interbody fusion (PLIF) surgery in the clinical field. STUDY DESIGN/SETTING This is a prospective, stratified randomized, multicenter, single-blinded, comparator-controlled non-inferiority trial. PATIENT SAMPLE The present study was conducted in four hospitals and enrolled a total of 86 patients between 30 and 80 years of age who required one-level PLIF due to severe spinal stenosis, spondylolisthesis, or huge disc herniation. OUTCOME MEASURES The Oswestry Disability Index (ODI), Short Form-36 Health Survey (SF-36), and pain visual analog scale (VAS) were assessed before surgery and at 3, 6, and 12 months after surgery. The spinal fusion rate was assessed at 6 and 12 months after surgery. METHODS The spinal fusion rate and the area of fusion, subsidence of each CaO-SiO2-P2O5-B2O3 glass ceramics and titanium cage, and the extent of osteolysis were evaluated using a dynamic plain radiography and a three-dimensional computed tomography at 12 months after surgery. The present study was supported by BioAlpha, and some authors (JHL, C-KL, and B-SC) have stock ownership (<10,000 US dollars). RESULTS From the plain radiography results, the 6-month fusion rates for the bioactive glass ceramics group and the titanium group were 89.7% and 91.4%, respectively. In addition, the 12-month fusion rates based on CT scan were 89.7% and 91.2%, respectively, showing no significant difference. However, the bone fusion area directly attached to the end plate of either bioactive glass ceramics or the titanium cage was significantly higher in the bioactive glass ceramics group than in the titanium group. The ODI, SF-36, back pain, and lower limb pain in both groups significantly improved after surgery, with no significant differences between the groups. No significant differences between the two groups were observed in the extent of subsidence and osteolysis. CONCLUSIONS In lumbar posterior interbody fusion surgery, CaO-SiO2-P2O5-B2O3 glass ceramics spacer showed a similar fusion rates and clinical outcomes compared with titanium cage.
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Affiliation(s)
- Jae Hyup Lee
- Department of Orthopedic Surgery, College of Medicine, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea; Department of Orthopedic Surgery, SMG-SNU Boramae Medical Center, 20, Boramae-ro 5-gil, Dongjak-Gu, Seoul, 07061, Korea
| | - Chang-Bae Kong
- Department of Orthopedic Surgery, Korea Cancer Center Hospital, 75, Nowon-ro, Nowon-gu, Seoul, Korea
| | - Jae Jun Yang
- Department of Orthopedic Surgery, Dongguk University Ilsan Hospital, 27, Dongguk-ro, Ilsan Dong-gu, Goyang-si, 10326, Korea
| | - Hee-Jong Shim
- Department of Orthopedic Surgery, SMG-SNU Boramae Medical Center, 20, Boramae-ro 5-gil, Dongjak-Gu, Seoul, 07061, Korea
| | - Ki-Hyoung Koo
- Department of Orthopedic Surgery, Dongguk University Ilsan Hospital, 27, Dongguk-ro, Ilsan Dong-gu, Goyang-si, 10326, Korea
| | - Jeehyoung Kim
- Department of Orthopedic Surgery, Seoul Sungsim General Hospital, 259, Wangsan-ro, Dongdaemun-gu, Seoul, 02488, Korea
| | - Choon-Ki Lee
- Department of Orthopedic Surgery, College of Medicine, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea; Department of Orthopedic Surgery, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Bong-Soon Chang
- Department of Orthopedic Surgery, College of Medicine, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea; Department of Orthopedic Surgery, Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
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Physicochemical and bioactive properties of innovative resin-based materials containing functional halloysite-nanotubes fillers. Dent Mater 2016; 32:1133-43. [DOI: 10.1016/j.dental.2016.06.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 01/23/2016] [Accepted: 06/22/2016] [Indexed: 11/22/2022]
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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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Ding Y, Tang S, Yu B, Yan Y, Li H, Wei J, Su J. In vitro degradability, bioactivity and primary cell responses to bone cements containing mesoporous magnesium-calcium silicate and calcium sulfate for bone regeneration. J R Soc Interface 2015; 12:20150779. [PMID: 26423442 PMCID: PMC4614512 DOI: 10.1098/rsif.2015.0779] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 09/09/2015] [Indexed: 12/24/2022] Open
Abstract
Mesoporous calcium sulfate-based bone cements (m-CSBC) were prepared by introducing mesoporous magnesium-calcium silicate (m-MCS) with specific surface area (410.9 m² g(-1)) and pore volume (0.8 cm³ g(-1)) into calcium sulfate hemihydrate (CSH). The setting time of the m-CSBC was longer with the increase of m-MCS content while compressive strength decreased. The degradation ratio of m-CSBC increased from 48.6 w% to 63.5 w% with an increase of m-MCS content after soaking in Tris-HCl solution for 84 days. Moreover, the m-CSBC containing m-MCS showed the ability to neutralize the acidic degradation products of calcium sulfate and prevent the pH from dropping. The apatite could be induced on m-CSBC surfaces after soaking in SBF for 7 days, indicating good bioactivity. The effects of the m-CSBC on vitamin D3 sustained release behaviours were investigated. It was found that the cumulative release ratio of vitamin D3 from the m-CSBC significantly increased with the increase of m-MCS content after soaking in PBS (pH = 7.4) for 25 days. The m-CSBC markedly improved the cell-positive responses, including the attachment, proliferation and differentiation of MC3T3-E1 cells, suggesting good cytocompatibility. Briefly, m-CSBC with good bioactivity, degradability and cytocompatibility might be an excellent biocement for bone regeneration.
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Affiliation(s)
- Yueting Ding
- 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
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Baoqing Yu
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai 200433, People's Republic of China
| | - Yonggang Yan
- College of Physical Science and Technology, Sichuan University, Chengdu 610041, People's Republic of China
| | - Hong Li
- College of Physical Science and Technology, Sichuan University, Chengdu 610041, People's Republic of China
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Jiacan Su
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai 200433, People's Republic of China
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Capanema NSV, Mansur AAP, Carvalho SM, Silva ARP, Ciminelli VS, Mansur HS. Niobium-Doped Hydroxyapatite Bioceramics: Synthesis, Characterization and In Vitro Cytocompatibility. MATERIALS (BASEL, SWITZERLAND) 2015; 8:4191-4209. [PMID: 28793433 PMCID: PMC5455653 DOI: 10.3390/ma8074191] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 06/01/2015] [Accepted: 07/01/2015] [Indexed: 11/30/2022]
Abstract
Doping calcium phosphates with ionic species can play an important role in biological responses promoting alkaline phosphatase activity, and, therefore inducing the generation of new bone. Thus, in this study, the synthesis of niobium-doped hydroxyapatite (Nb-HA) nanosize particles obtained by the precipitation process in aqueous media followed by thermal treatment is presented. The bioceramics were extensively characterized by X-ray diffraction, wavelength dispersive X-ray fluorescence spectrometry, Fourier transform infrared spectroscopy, scanning electron microscopy/energy dispersive X-ray spectroscopy analysis, transmission electron microscopy, atomic force microscopy and thermal analysis regarding their chemical composition, structure and morphology. The results showed that the precipitate dried at 110 °C was composed of amorphous calcium phosphate and HA, with polidisperse particles ranging from micro to nano dimensions. After the thermal treatment at 900 °C, the bioceramic system evolved predominantly to HA crystalline phase, with evident features of particle sintering and reduction of surface area. Moreover, the addition of 10 mol% of niobium salt precursor during the synthesis indicated the complete incorporation of the Nb(V) species in the HA crystals with detectable changes in the original lattice parameters. Furthermore, the incorporation of Nb ions caused a significant refinement on the average particle size of HA. Finally, the preliminary cytocompatibility response of the biomaterials was accessed by human osteoblast cell culture using MTT and resazurin assays, which demonstrated no cytotoxicity of the Nb-alloyed hydroxyapatite. Thus, these findings seem promising for developing innovative Nb-doped calcium phosphates as artificial biomaterials for potential use in bone replacements and repair.
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Affiliation(s)
- Nádia S V Capanema
- Center of Nanoscience, Nanotechnology and Innovation-CeNano2I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais/UFMG, Av. Antônio Carlos, 6627 Escola de Engenharia, Belo Horizonte/MG 31.270-901, Brazil.
| | - Alexandra A P Mansur
- Center of Nanoscience, Nanotechnology and Innovation-CeNano2I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais/UFMG, Av. Antônio Carlos, 6627 Escola de Engenharia, Belo Horizonte/MG 31.270-901, Brazil.
| | - Sandhra M Carvalho
- Center of Nanoscience, Nanotechnology and Innovation-CeNano2I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais/UFMG, Av. Antônio Carlos, 6627 Escola de Engenharia, Belo Horizonte/MG 31.270-901, Brazil.
| | - Alexandra R P Silva
- Center of Nanoscience, Nanotechnology and Innovation-CeNano2I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais/UFMG, Av. Antônio Carlos, 6627 Escola de Engenharia, Belo Horizonte/MG 31.270-901, Brazil.
| | - Virginia S Ciminelli
- Center of Nanoscience, Nanotechnology and Innovation-CeNano2I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais/UFMG, Av. Antônio Carlos, 6627 Escola de Engenharia, Belo Horizonte/MG 31.270-901, Brazil.
| | - Herman S Mansur
- Center of Nanoscience, Nanotechnology and Innovation-CeNano2I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais/UFMG, Av. Antônio Carlos, 6627 Escola de Engenharia, Belo Horizonte/MG 31.270-901, Brazil.
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Kido HW, Tim CR, Bossini PS, Parizotto NA, de Castro CA, Crovace MC, Rodrigues ACM, Zanotto ED, Peitl Filho O, de Freitas Anibal F, Rennó ACM. Porous bioactive scaffolds: characterization and biological performance in a model of tibial bone defect in rats. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:74. [PMID: 25631271 DOI: 10.1007/s10856-015-5411-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 11/06/2014] [Indexed: 06/04/2023]
Abstract
The aim of this study was to evaluate the effects of highly porous Biosilicate(®) scaffolds on bone healing in a tibial bone defect model in rats by means of histological evaluation (histopathological and immunohistochemistry analysis) of the bone callus and the systemic inflammatory response (immunoenzymatic assay). Eighty Wistar rats (12 weeks-old, weighing±300 g) were randomly divided into 2 groups (n=10 per experimental group, per time point): control group and Biosilicate® group (BG). Each group was euthanized 3, 7, 14 and 21 days post-surgery. Histological findings revealed a similar inflammatory response in both experimental groups, 3 and 7 days post-surgery. During the experimental periods (3-21 days post-surgery), it was observed that the biomaterial degradation, mainly in the periphery region, provided the development of the newly formed bone into the scaffolds. Immunohistochemistry analysis demonstrated that the Biosilicate® scaffolds stimulated cyclooxygenase-2, vascular endothelial growth factor and runt-related transcription factor 2 expression. Furthermore, in the immunoenzymatic assay, BG presented no difference in the level of tumor necrosis factor alpha in all experimental periods. Still, BG showed a higher level of interleukin 4 after 14 days post-implantation and a lower level of interleukin 10 in 21 days post-surgery. Our results demonstrated that Biosilicate® scaffolds can contribute for bone formation through a suitable architecture and by stimulating the synthesis of markers related to the bone repair.
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Affiliation(s)
- Hueliton Wilian Kido
- Department of Physiotherapy, Post-Graduate Program of Biotechnology, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil,
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Feng P, Guo X, Gao C, Gao D, Xiao T, Shuai X, Shuai C, Peng S. Diopside modified porous polyglycolide scaffolds with improved properties. RSC Adv 2015. [DOI: 10.1039/c5ra06312d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this research, diopside was incorporated into PGA scaffolds for enhancing mechanical and biological properties. The porous scaffolds were fabricated via selective laser sintering.
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Affiliation(s)
- Pei Feng
- State Key Laboratory of High Performance Complex Manufacturing
- Central South University
- Changsha
- China
| | - Xiaoning Guo
- Department of Orthopedics
- The Second Xiangya Hospital
- Central South University
- Changsha
- China
| | - Chengde Gao
- State Key Laboratory of High Performance Complex Manufacturing
- Central South University
- Changsha
- China
| | - Dan Gao
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya School of Medicine
- Central South University
- Changsha
- China
- School of Basic Medical Science
| | - Tao Xiao
- Department of Orthopedics
- The Second Xiangya Hospital
- Central South University
- Changsha
- China
| | - Xiong Shuai
- State Key Laboratory of Powder Metallurgy
- Central South University
- Changsha
- China
| | - Cijun Shuai
- State Key Laboratory of High Performance Complex Manufacturing
- Central South University
- Changsha
- China
- Orthopedic Biomedical Materials Institute
| | - Shuping Peng
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya School of Medicine
- Central South University
- Changsha
- China
- School of Basic Medical Science
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Ulum MF, Nasution AK, Yusop AH, Arafat A, Kadir MRA, Juniantito V, Noviana D, Hermawan H. Evidences ofin vivobioactivity of Fe-bioceramic composites for temporary bone implants. J Biomed Mater Res B Appl Biomater 2014; 103:1354-65. [DOI: 10.1002/jbm.b.33315] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 09/28/2014] [Accepted: 10/18/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Mokhamad F. Ulum
- Faculty of Biosciences and Medical Engineering; University Teknologi Malaysia; Johor Bahru Malaysia
- Faculty of Veterinary Medicine; Bogor Agricultural University; Bogor Indonesia
| | - Ahmad K. Nasution
- Faculty of Biosciences and Medical Engineering; University Teknologi Malaysia; Johor Bahru Malaysia
- Faculty of Engineering; Muhammadiyah University of Riau; Riau Indonesia
| | - Abdul H. Yusop
- Faculty of Biosciences and Medical Engineering; University Teknologi Malaysia; Johor Bahru Malaysia
| | - Andril Arafat
- Faculty of Biosciences and Medical Engineering; University Teknologi Malaysia; Johor Bahru Malaysia
| | - Mohammed Rafiq A. Kadir
- Faculty of Biosciences and Medical Engineering; University Teknologi Malaysia; Johor Bahru Malaysia
| | - Vetnizah Juniantito
- Faculty of Veterinary Medicine; Bogor Agricultural University; Bogor Indonesia
| | - Deni Noviana
- Faculty of Veterinary Medicine; Bogor Agricultural University; Bogor Indonesia
| | - Hendra Hermawan
- Faculty of Biosciences and Medical Engineering; University Teknologi Malaysia; Johor Bahru Malaysia
- Department of Mining; Metallurgical and Materials Engineering and CHU de Québec Research Center; Laval University; Quebec City Canada
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Feng P, Deng Y, Duan S, Gao C, Shuai C, Peng S. Liquid phase sintered ceramic bone scaffolds by combined laser and furnace. Int J Mol Sci 2014; 15:14574-90. [PMID: 25196598 PMCID: PMC4159869 DOI: 10.3390/ijms150814574] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 07/29/2014] [Accepted: 08/14/2014] [Indexed: 11/25/2022] Open
Abstract
Fabrication of mechanically competent bioactive scaffolds is a great challenge in bone tissue engineering. In this paper, β-tricalcium phosphate (β-TCP) scaffolds were successfully fabricated by selective laser sintering combined with furnace sintering. Bioglass 45S5 was introduced in the process as liquid phase in order to improve the mechanical and biological properties. The results showed that sintering of β-TCP with the bioglass revealed some features of liquid phase sintering. The optimum amount of 45S5 was 5 wt %. At this point, the scaffolds were densified without defects. The fracture toughness, compressive strength and stiffness were 1.67 MPam1/2, 21.32 MPa and 264.32 MPa, respectively. Bone like apatite layer was formed and the stimulation for apatite formation was increased with increase in 45S5 content after soaking in simulated body fluid, which indicated that 45S5 could improve the bioactivity. Furthermore, MG-63 cells adhered and spread well, and proliferated with increase in the culture time.
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Affiliation(s)
- Pei Feng
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China.
| | - Youwen Deng
- Department of Spine Surgery, the Second Xiangya Hospital of Central South University, Changsha 410011, China.
| | - Songlin Duan
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China.
| | - Chengde Gao
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China.
| | - Cijun Shuai
- State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China.
| | - Shuping Peng
- Cancer Research Institute, Central South University, Changsha 410078, China.
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Seol YJ, Park JY, Jeong W, Kim TH, Kim SY, Cho DW. Development of hybrid scaffolds using ceramic and hydrogel for articular cartilage tissue regeneration. J Biomed Mater Res A 2014; 103:1404-13. [PMID: 25044835 DOI: 10.1002/jbm.a.35276] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 06/27/2014] [Accepted: 07/07/2014] [Indexed: 11/10/2022]
Abstract
The regeneration of articular cartilage consisting of hyaline cartilage and hydrogel scaffolds has been generally used in tissue engineering. However, success in in vivo studies has been rarely reported. The hydrogel scaffolds implanted into articular cartilage defects are mechanically unstable and it is difficult for them to integrate with the surrounding native cartilage tissue. Therefore, it is needed to regenerate cartilage and bone tissue simultaneously. We developed hybrid scaffolds with hydrogel scaffolds for cartilage tissue and with ceramic scaffolds for bone tissue. For in vivo study, hybrid scaffolds were press-fitted into osteochondral tissue defects in a rabbit knee joints and the cartilage tissue regeneration in blank, hydrogel scaffolds, and hybrid scaffolds was compared. In 12th week after implantation, the histological and immunohistochemical analyses were conducted to evaluate the cartilage tissue regeneration. In the blank and hydrogel scaffold groups, the defects were filled with fibrous tissues and the implanted hydrogel scaffolds could not maintain their initial position; in the hybrid scaffold group, newly generated cartilage tissues were morphologically similar to native cartilage tissues and were smoothly connected to the surrounding native tissues. This study demonstrates hybrid scaffolds containing hydrogel and ceramic scaffolds can provide mechanical stability to hydrogel scaffolds and enhance cartilage tissue regeneration at the defect site.
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Affiliation(s)
- Young-Joon Seol
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, 27157
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39
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Liu C, Wan P, Tan LL, Wang K, Yang K. Preclinical investigation of an innovative magnesium-based bone graft substitute for potential orthopaedic applications. J Orthop Translat 2014. [DOI: 10.1016/j.jot.2014.06.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Baler K, Ball JP, Cankova Z, Hoshi RA, Ameer GA, Allen JB. Advanced nanocomposites for bone regeneration. Biomater Sci 2014; 2:1355-1366. [PMID: 32481912 DOI: 10.1039/c4bm00133h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The field of orthopedic tissue engineering is quickly expanding with the development of novel materials and strategies designed for rapid bone regeneration. While autologous bone grafts continue to be the standard of care, drawbacks include donor-site morbidity and short tissue supplies. Herein we report a novel nanocomposite sponge composed of poly(1,8-octanediol-co-citrate) (POC) and the bioactive ceramic β-tricalcium phosphate (TCP). We show that these nanocomposite sponges can be used as a depot for bone-producing (a.k.a. osteogenic) growth factors. In vitro bioactivity is demonstrated by significant upregulation of osteogenic genes, osteopontin (∼3 fold increase), osteocalcin (∼22 fold increase), alkaline phosphatase (∼10 fold increase), and transcription factor, RUNX2 (∼5 fold increase) over basal expression levels in mesenchymal stem cells. In vivo osteogenicity and biocompatibility is demonstrated in a standard subcutaneous implant model in rat. Results show that the nanocomposite sponge supports complete cell infiltration, minimal adverse foreign body response, positive cellular proliferation, and cellular expression of osteogenic markers in subcutaneous tissue. The results shown herein are encouraging and support the use of this sponge for future bone tissue engineering efforts.
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Affiliation(s)
- Kevin Baler
- Biomedical Engineering Department, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA.
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41
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Seol YJ, Park JY, Jung JW, Jang J, Girdhari R, Kim SW, Cho DW. Improvement of bone regeneration capability of ceramic scaffolds by accelerated release of their calcium ions. Tissue Eng Part A 2014; 20:2840-9. [PMID: 24784792 DOI: 10.1089/ten.tea.2012.0726] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
To regenerate the bone tissue, the fabrication of scaffolds for better tissue regeneration has attracted a great deal of attention. In fact, growth factors are already used in clinical practice and are being investigated for enhancing the capacity for bone tissue regeneration. However, despite their strong osteoinductive activity, these growth factors have several limitations: safety issues, high treatment costs, and the potential for ectopic bone formation. The aim of this study was therefore to develop ceramic scaffolds that could promote the capacity for bone regeneration without growth factors. Three-dimensional ceramic scaffolds were successfully fabricated from hydroxyapatite (HA) and tricalcium phosphate (TCP) using projection-based microstereolithography, which is an additive manufacturing technology. The effects of calcium ions released from ceramic scaffolds on osteogenic differentiation and bone regeneration were evaluated in vitro and in vivo. The osteogenesis-related gene expression and area of new bone formation in the HA/TCP scaffolds was higher than those in the HA scaffolds. Moreover, regenerated bone tissue in HA/TCP scaffolds were more matured than that in HA scaffolds. Through this study, we were able to enhance the bone regeneration capacity of scaffolds not by growth factors but by calcium ions released from the scaffolds. Ceramic scaffolds developed in this study might be useful for enhancing the capacity for regeneration in complex bone defects.
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Affiliation(s)
- Young-Joon Seol
- 1 Wake Forest Institute for Regenerative Medicine , Wake Forest School of Medicine, Winston-Salem, North Carolina
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Wang SL, Shi XH, Yang Z, Zhang YM, Shen LR, Lei ZY, Zhang ZQ, Cao C, Fan DL. Osteopontin (OPN) is an important protein to mediate improvements in the biocompatibility of C ion-implanted silicone rubber. PLoS One 2014; 9:e98320. [PMID: 24911051 PMCID: PMC4049582 DOI: 10.1371/journal.pone.0098320] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 05/01/2014] [Indexed: 01/15/2023] Open
Abstract
Medical device implants are drawing increasing amounts of interest from modern medical practitioners. However, this attention is not evenly spread across all such devices; most of these implantable devices can cause adverse reactions such as inflammation, fibrosis, thrombosis, and infection. In this work, the biocompatibility of silicone rubber (SR) was improved through carbon (C) ion implantation. Scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD) results confirmed that these newly generated carbon-implanted silicone rubbers (C-SRs) had large, irregular peaks and deep valleys on their surfaces. The water contact angle of the SR surface decreased significantly after C ion implantation. C ion implantation also changed the surface charge distribution, silicone oxygen rate, and chemical-element distribution of SR to favor cell attachment. The dermal fibroblasts cultured on the surface C-SR grew faster and showed more typical fibroblastic shapes. The expression levels of major adhesion proteins, including talin-1, zyxin, and vinculin, were significantly higher in dermal fibroblasts cultured on C-SR coated plates than in dermal fibroblasts cultured on SR. Those same dermal fibroblasts on C-SRs showed more pronounced adhesion and migration abilities. Osteopontin (OPN), a critical extracellular matrix (ECM) protein, was up-regulated and secreted from dermal fibroblasts cultured on C-SR. Matrix metalloproteinase-9 (MMP-9) activity was also increased. These cells were highly mobile and were able to adhere to surfaces, but these abilities were inhibited by the monoclonal antibody against OPN, or by shRNA-mediated MMP-9 knockdown. Together, these results suggest that C ion implantation significantly improves SR biocompatibility, and that OPN is important to promote cell adhesion to the C-SR surface.
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Affiliation(s)
- Shao-liang Wang
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Xiao-hua Shi
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Zhi Yang
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Yi-ming Zhang
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Li-ru Shen
- Southwestern Institute of Physics, Chengdu, Sichuan, People's Republic of China
| | - Ze-yuan Lei
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Zhi-qing Zhang
- Institute of Neuroscience, Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Cong Cao
- Institute of Neuroscience, Soochow University, Suzhou, Jiangsu, People's Republic of China
- * E-mail: (CC); (DF)
| | - Dong-li Fan
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, Third Military Medical University, Chongqing, People's Republic of China
- * E-mail: (CC); (DF)
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Enhanced osteogenicity of bioactive composites with biomimetic treatment. BIOMED RESEARCH INTERNATIONAL 2014; 2014:207676. [PMID: 24812608 PMCID: PMC4000935 DOI: 10.1155/2014/207676] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 03/08/2014] [Indexed: 12/21/2022]
Abstract
Purpose. This study aimed to explore if initiation of biomimetic apatite nucleation can be used to enhance osteoblast response to biodegradable tissue regeneration composite membranes. Materials and Methods. Bioactive thermoplastic composites consisting of poly(ε-caprolactone/DL-lactide) and bioactive glass (BAG) were prepared at different stages of biomimetic calcium phosphate deposition by immersion in simulated body fluid (SBF). The modulation of the BAG dissolution and the osteogenic response of rat mesenchymal stem cells (MSCs) were analyzed. Results. SBF treatment resulted in a gradual calcium phosphate deposition on the composites and decreased BAG reactivity in the subsequent cell cultures. Untreated composites and composites covered by thick calcium phosphate layer (14 days in SBF) expedited MSC mineralization in comparison to neat polymers without BAG, whereas other osteogenic markers—alkaline phosphatase activity, bone sialoprotein, and osteocalcin expression—were initially decreased. In contrast, surfaces with only small calcium phosphate aggregates (five days in SBF) had similar early response than neat polymers but still demonstrated enhanced mineralization. Conclusion. A short biomimetic treatment enhances osteoblast response to bioactive composite membranes.
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Dolgorsuren A, Yamashita K, Dalkhsuren SO, Sumida K, Seki S, Kitamura S. The Ceramics Radiating Far Infrared Ray Energy (Rhyolite) Promote the Formation of Bone. J HARD TISSUE BIOL 2014. [DOI: 10.2485/jhtb.23.423] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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45
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In vitro and in vivo degradation evaluation of novel iron-bioceramic composites for bone implant applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 36:336-44. [PMID: 24433920 DOI: 10.1016/j.msec.2013.12.022] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 11/06/2013] [Accepted: 12/17/2013] [Indexed: 11/20/2022]
Abstract
Biodegradable metals such as magnesium, iron and their alloys have been known as potential materials for temporary medical implants. However, most of the studies on biodegradable metals have been focusing on optimizing their mechanical properties and degradation behavior with no emphasis on improving their bioactivity behavior. We therefore investigated the possibility of improving iron biodegradation rate and bioactivity by incorporating various bioactive bioceramics. The iron-based bioceramic (hydroxyapatite, tricalcium phosphate and biphasic calcium phosphate) composites were prepared by mechanical mixing and sintering process. Degradation studies indicated that the addition of bioceramics lowered the corrosion potential of the composites and slightly increased their corrosion rate compared to that of pure iron. In vitro cytotoxicity results showed an increase of cellular activity when rat smooth muscle cells interacted with the degrading composites compared to pure iron. X-ray radiogram analysis showed a consistent degradation progress with that found in vivo and positive tissue response up to 70 days implantation in sheep animal model. Therefore, the iron-based bioceramic composites have the potential to be used for biodegradable bone implant applications.
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46
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Chen WC, Chen CH, Kung JC, Hsiao YC, Shih CJ, Chien CS. Phosphorus Effects of Mesoporous Bioactive Glass on Occlude Exposed Dentin. MATERIALS (BASEL, SWITZERLAND) 2013; 6:5335-5351. [PMID: 28788393 PMCID: PMC5452793 DOI: 10.3390/ma6115335] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2013] [Revised: 10/11/2013] [Accepted: 11/14/2013] [Indexed: 11/26/2022]
Abstract
In recent studies, sealing of exposed dentinal tubules is generally considered as one of the most effective strategies to treat dentin hypersensitivity. Mesoporous bioactive glass (MBG) is a potential material for treating dentin hypersensitivity due to its highly specific areas for dissolution and re-precipitated reaction for reduction in dentin permeability. The groups of commercial products of PerioGlas®, synthetic MBG and MBG without phosphorus (MBGNP) were compared. The MBG and MBGNP powders were prepared by the sol-gel method and mixed with different calculated ratios of phosphoric acid (PA) and then was brushed onto dentin surfaces. We used X-ray diffractometer (XRD), scanning electronic microscope (SEM), and Fourier transform infrared spectroscopy (FTIR) to investigate the physiochemistry and the occlusion ability of dentinal tubules. The results showed that MBG paste mixed with PA solution has a better ability for occluding dentinal tubules than MBGNP; it has a short reaction time and good operability. The major crystallite phase of MBG agents was monocalcium phosphate monohydrate [Ca(H₂PO₄)₂·H₂O] in the early stages of the reactions. MBG pastes that were mixed with 30% and 40% PA had the ability to create excellent penetration depth greater than 80 μm. These agents have the potential to treat dentin hypersensitivity.
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Affiliation(s)
- Wen-Cheng Chen
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, College of Engineering, Feng Chia University, Taichung 40724, Taiwan.
| | - Cheng-Hwei Chen
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
| | - Jung-Chang Kung
- Department of Family Dentistry, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
| | - Yu-Cheng Hsiao
- Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
| | - Chi-Jen Shih
- Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
| | - Chi-Sheng Chien
- Department of Orthopaedics, Chi Mei Foundation Hospital, Tainan 71004, Taiwan.
- Department of Electrical Engineering, Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan.
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47
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Dorozhkin SV. Calcium Orthophosphate-Based Bioceramics. MATERIALS (BASEL, SWITZERLAND) 2013; 6:3840-3942. [PMID: 28788309 PMCID: PMC5452669 DOI: 10.3390/ma6093840] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 08/07/2013] [Accepted: 08/19/2013] [Indexed: 02/07/2023]
Abstract
Various types of grafts have been traditionally used to restore damaged bones. In the late 1960s, a strong interest was raised in studying ceramics as potential bone grafts due to their biomechanical properties. A bit later, such synthetic biomaterials were called bioceramics. In principle, bioceramics can be prepared from diverse materials but this review is limited to calcium orthophosphate-based formulations only, which possess the specific advantages due to the chemical similarity to mammalian bones and teeth. During the past 40 years, there have been a number of important achievements in this field. Namely, after the initial development of bioceramics that was just tolerated in the physiological environment, an emphasis was shifted towards the formulations able to form direct chemical bonds with the adjacent bones. Afterwards, by the structural and compositional controls, it became possible to choose whether the calcium orthophosphate-based implants remain biologically stable once incorporated into the skeletal structure or whether they were resorbed over time. At the turn of the millennium, a new concept of regenerative bioceramics was developed and such formulations became an integrated part of the tissue engineering approach. Now calcium orthophosphate scaffolds are designed to induce bone formation and vascularization. These scaffolds are often porous and harbor different biomolecules and/or cells. Therefore, current biomedical applications of calcium orthophosphate bioceramics include bone augmentations, artificial bone grafts, maxillofacial reconstruction, spinal fusion, periodontal disease repairs and bone fillers after tumor surgery. Perspective future applications comprise drug delivery and tissue engineering purposes because calcium orthophosphates appear to be promising carriers of growth factors, bioactive peptides and various types of cells.
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Asanithi P. Surface porosity and roughness of micrographite film for nucleation of hydroxyapatite. J Biomed Mater Res A 2013; 102:2590-9. [DOI: 10.1002/jbm.a.34930] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Accepted: 08/16/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Piyapong Asanithi
- Department of Physics, Faculty of Science; King Mongkut's University of Technology Thonburi; Bangkok 10140 Thailand
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Pozio A, Palmieri A, Girardi A, Cura F, Carinci F. Titanium nanotubes activate genes related to bone formation in vitro. Dent Res J (Isfahan) 2013; 9:S164-8. [PMID: 23814577 PMCID: PMC3692167 DOI: 10.4103/1735-3327.109736] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background: Titanium is used worldwide to make osseointegrable devices, thanks to its favorable characteristics as mechanical proprieties and biocompatibility, demonstrated by in vivo studies with animal models and clinical trials over a forty-year period. However, the exact genetic effect of the titanium layer on cells is still not well characterized. Materials and Methods: To investigate how titanium nanotubes stimulate osteoblasts differentiation and proliferation, some osteoblast genes (SP7, RUNX2, COL3A1, COL1A1, ALPL, SPP1 and FOSL1) were analyzed by quantitative Real Time RT- PCR. Results: After 15 days, osteoblasts cultivated on titanium naotube showed the up-regulation of bone related genes SP7, ENG, FOSL1 and SPP1 and the down-regulation of RUNX2, COL3A1, COL1A1, and ALPL. After 30 days of treatment, the bone related genes SP7, ENG, FOSL1 and RUNX2 were up-regulated while COL3A1, COL1A1, ALPL and SPP1 were down-regulated. Conclusions: Our results, demonstrates that titanium nanotubes can lead to osteoblast differentiation and extracellular matrix deposition and mineralization in dental pulp stem cells by the activation of osteoblast related genes SPP1, FOSL1 and RUNX2.
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Wang X, Schröder HC, Feng Q, Draenert F, Müller WEG. The deep-sea natural products, biogenic polyphosphate (Bio-PolyP) and biogenic silica (Bio-Silica), as biomimetic scaffolds for bone tissue engineering: fabrication of a morphogenetically-active polymer. Mar Drugs 2013; 11:718-46. [PMID: 23528950 PMCID: PMC3705367 DOI: 10.3390/md11030718] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 02/04/2013] [Accepted: 02/06/2013] [Indexed: 12/12/2022] Open
Abstract
Bone defects in human, caused by fractures/nonunions or trauma, gain increasing impact and have become a medical challenge in the present-day aging population. Frequently, those fractures require surgical intervention which ideally relies on autografts or suboptimally on allografts. Therefore, it is pressing and likewise challenging to develop bone substitution materials to heal bone defects. During the differentiation of osteoblasts from their mesenchymal progenitor/stem cells and of osteoclasts from their hemopoietic precursor cells, a lineage-specific release of growth factors and a trans-lineage homeostatic cross-talk via signaling molecules take place. Hence, the major hurdle is to fabricate a template that is functioning in a way mimicking the morphogenetic, inductive role(s) of the native extracellular matrix. In the last few years, two naturally occurring polymers that are produced by deep-sea sponges, the biogenic polyphosphate (bio-polyP) and biogenic silica (bio-silica) have also been identified as promoting morphogenetic on both osteoblasts and osteoclasts. These polymers elicit cytokines that affect bone mineralization (hydroxyapatite formation). In this manner, bio-silica and bio-polyP cause an increased release of BMP-2, the key mediator activating the anabolic arm of the hydroxyapatite forming cells, and of RANKL. In addition, bio-polyP inhibits the progression of the pre-osteoclasts to functionally active osteoclasts. Based on these findings, new bioinspired strategies for the fabrication of bone biomimetic templates have been developed applying 3D-printing techniques. Finally, a strategy is outlined by which these two morphogenetically active polymers might be used to develop a novel functionally active polymer.
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Affiliation(s)
- Xiaohong Wang
- ERC Advanced Investigator Grant Research Group at Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, D-55128 Mainz, Germany; E-Mail:
- National Research Center for Geoanalysis, Chinese Academy of Geological Sciences, 26 Baiwanzhuang Dajie, 100037 Beijing, China
| | - Heinz C. Schröder
- ERC Advanced Investigator Grant Research Group at Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, D-55128 Mainz, Germany; E-Mail:
| | - Qingling Feng
- Department of Materials Science and Engineering, Tsinghua University, 100084 Beijing, China; E-Mail:
| | - Florian Draenert
- Department and Clinic for Oral and Maxillofacial Surgery, Baldingerstraße, D-35033 Marburg, Germany; E-Mail:
| | - Werner E. G. Müller
- ERC Advanced Investigator Grant Research Group at Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, D-55128 Mainz, Germany; E-Mail:
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