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Ximenes-Carballo C, Rey-Viñolas S, Blanco-Fernandez B, Pérez-Amodio S, Engel E, Castano O. Combining three-dimensionality and CaP glass-PLA composites: Towards an efficient vascularization in bone tissue healing. BIOMATERIALS ADVANCES 2024; 164:213985. [PMID: 39146606 DOI: 10.1016/j.bioadv.2024.213985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 07/30/2024] [Accepted: 08/02/2024] [Indexed: 08/17/2024]
Abstract
Bone regeneration often fails due to implants/grafts lacking vascular supply, causing necrotic tissue and poor integration. Microsurgical techniques are used to overcome this issue, allowing the graft to anastomose. These techniques have limitations, including severe patient morbidity and current research focuses on stimulating angiogenesis in situ using growth factors, presenting limitations, such as a lack of control and increased costs. Non-biological stimuli are necessary to promote angiogenesis for successful bone constructs. Recent studies have reported that bioactive glass dissolution products, such as calcium-releasing nanoparticles, stimulate hMSCs to promote angiogenesis and new vasculature. Moreover, the effect of 3D microporosity has also been reported to be important for vascularisation in vivo. Therefore, we used room-temperature extrusion 3D printing with polylactic acid (PLA) and calcium phosphate (CaP) based glass scaffolds, focusing on geometry and solvent displacement for scaffold recovery. Combining both methods enabled reproducible control of 3D structure, porosity, and surface topography. Scaffolds maintained calcium ion release at physiological levels and supported human mesenchymal stem cell proliferation. Scaffolds stimulated the secretion of vascular endothelial growth factor (VEGF) after 3 days of culture. Subcutaneous implantation in vivo indicated good scaffold integration and blood vessel infiltration as early as one week after. PLA-CaP scaffolds showed increased vessel maturation 4 weeks after implantation without vascular regression. Results show PLA/CaP-based glass scaffolds, made via controlled 3D printing, support angiogenesis and vessel maturation, promising improved vascularization for bone regeneration.
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Affiliation(s)
- Celia Ximenes-Carballo
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Sergi Rey-Viñolas
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Barbara Blanco-Fernandez
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Soledad Pérez-Amodio
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; IMEM-BRT group, Materials Science and Engineering, Polytechnical University of Catalonia (UPC), Barcelona, Spain
| | - Elisabeth Engel
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; IMEM-BRT group, Materials Science and Engineering, Polytechnical University of Catalonia (UPC), Barcelona, Spain.
| | - Oscar Castano
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain; CIBER en Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Electronics and Biomedical Engineering, University of Barcelona (UB), Barcelona, Spain; Nanobioengineering and Biomaterials, Institute of Nanoscience and Nanotechnology (IN2UB), Barcelona, Spain.
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2
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Kapusta O, Jarosz A, Stadnik K, Giannakoudakis DA, Barczyński B, Barczak M. Antimicrobial Natural Hydrogels in Biomedicine: Properties, Applications, and Challenges-A Concise Review. Int J Mol Sci 2023; 24:2191. [PMID: 36768513 PMCID: PMC9917233 DOI: 10.3390/ijms24032191] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
Natural hydrogels are widely used as biomedical materials in many areas, including drug delivery, tissue scaffolds, and particularly wound dressings, where they can act as an antimicrobial factor lowering the risk of microbial infections, which are serious health problems, especially with respect to wound healing. In this review article, a number of promising strategies in the development of hydrogels with biocidal properties, particularly those originating from natural polymers, are briefly summarized and concisely discussed. Common strategies to design and fabricate hydrogels with intrinsic or stimuli-triggered antibacterial activity are exemplified, and the mechanisms lying behind these properties are also discussed. Finally, practical antibacterial applications are also considered while discussing the current challenges and perspectives.
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Affiliation(s)
- Oliwia Kapusta
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20031 Lublin, Poland
| | - Anna Jarosz
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20031 Lublin, Poland
| | - Katarzyna Stadnik
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20031 Lublin, Poland
| | | | - Bartłomiej Barczyński
- 1st Department of Oncological Gynecology and Gynecology, Medical University in Lublin, 20-059 Lublin, Poland
| | - Mariusz Barczak
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University, 20031 Lublin, Poland
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Homaeigohar S, Li M, Boccaccini AR. Bioactive glass-based fibrous wound dressings. BURNS & TRAUMA 2022; 10:tkac038. [PMID: 36196303 PMCID: PMC9519693 DOI: 10.1093/burnst/tkac038] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 07/16/2022] [Accepted: 07/20/2022] [Indexed: 11/13/2022]
Abstract
Since the discovery of silicate bioactive glass (BG) by Larry Hench in 1969, different classes of BGs have been researched over decades mainly for bone regeneration. More recently, validating the beneficial influence of BGs with tailored compositions on angiogenesis, immunogenicity and bacterial infection, the applicability of BGs has been extended to soft tissue repair and wound healing. Particularly, fibrous wound dressings comprising BG particle reinforced polymer nanofibers and cotton-candy-like BG fibers have been proven to be successful for wound healing applications. Such fibrous dressing materials imitate the physical structure of skin's extracellular matrix and release biologically active ions e.g. regenerative, pro-angiogenic and antibacterial ions, e.g. borate, copper, zinc, etc., that can provoke cellular activities to regenerate the lost skin tissue and to induce new vessels formation, while keeping an anti-infection environment. In the current review, we discuss different BG fibrous materials meant for wound healing applications and cover the relevant literature in the past decade. The production methods for BG-containing fibers are explained and as fibrous wound dressing materials, their wound healing and bactericidal mechanisms, depending on the ions they release, are discussed. The present gaps in this research area are highlighted and new strategies to address them are suggested.
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Affiliation(s)
- Shahin Homaeigohar
- School of Science and Engineering, University of Dundee, Dundee DD1 4HN, United Kingdom
| | - Meng Li
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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Sideris E, Kioulaphides S, Wilson K, Yu A, Chen J, Carmichael ST, Segura T. Particle hydrogels decrease cerebral atrophy and attenuate astrocyte and microglia/macrophage reactivity after stroke. ADVANCED THERAPEUTICS 2022; 5:2200048. [PMID: 36589207 PMCID: PMC9797126 DOI: 10.1002/adtp.202200048] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Increasing numbers of individuals live with stroke related disabilities. Following stroke, highly reactive astrocytes and pro-inflammatory microglia can release cytokines and lead to a cytotoxic environment that causes further brain damage and prevents endogenous repair. Paradoxically, these same cells also activate pro-repair mechanisms that contribute to endogenous repair and brain plasticity. Here, we show that the direct injection of a hyaluronic acid based microporous annealed particle (MAP) hydrogel into the stroke core in mice reduces the percent of highly reactive astrocytes, increases the percent of alternatively activated microglia, decreases cerebral atrophy and preserves NF200 axonal bundles. Further, we show that MAP hydrogel promotes reparative astrocyte infiltration into the lesion, which directly coincides with axonal penetration into the lesion. This work shows that the injection of a porous scaffold into the stroke core can lead to clinically relevant decrease in cerebral atrophy and modulates astrocytes and microglia towards a pro-repair phenotype.
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Affiliation(s)
- Elias Sideris
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, CA, United States
| | - Sophia Kioulaphides
- Departments of Biomedical Engineering, Neurology, and Dermatology, Duke University, Durham, NC, United States
| | - Katrina Wilson
- Departments of Biomedical Engineering, Neurology, and Dermatology, Duke University, Durham, NC, United States
| | - Aaron Yu
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, CA, United States
| | - Jun Chen
- Departments of Biomedical Engineering, Neurology, and Dermatology, Duke University, Durham, NC, United States
| | - S Thomas Carmichael
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, United States
| | - Tatiana Segura
- Departments of Biomedical Engineering, Neurology, and Dermatology, Duke University, Durham, NC, United States,Corresponding author: Tel.: +1 919-660-2901,
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dos Santos Gomes D, de Sousa Victor R, de Sousa BV, de Araújo Neves G, de Lima Santana LN, Menezes RR. Ceramic Nanofiber Materials for Wound Healing and Bone Regeneration: A Brief Review. MATERIALS 2022; 15:ma15113909. [PMID: 35683207 PMCID: PMC9182284 DOI: 10.3390/ma15113909] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/29/2022] [Accepted: 05/06/2022] [Indexed: 02/04/2023]
Abstract
Ceramic nanofibers have been shown to be a new horizon of research in the biomedical area, due to their differentiated morphology, nanoroughness, nanotopography, wettability, bioactivity, and chemical functionalization properties. Therefore, considering the impact caused by the use of these nanofibers, and the fact that there are still limited data available in the literature addressing the ceramic nanofiber application in regenerative medicine, this review article aims to gather the state-of-the-art research concerning these materials, for potential use as a biomaterial for wound healing and bone regeneration, and to analyze their characteristics when considering their application.
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Affiliation(s)
- Déborah dos Santos Gomes
- Graduate Program in Materials Science and Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil; (G.d.A.N.); (L.N.d.L.S.)
- Laboratory of Materials Technology, Department of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil
- Correspondence: (D.d.S.G.); (R.d.S.V.); (R.R.M.); Tel.: +55-083-2101-1183 (R.R.M.)
| | - Rayssa de Sousa Victor
- Graduate Program in Materials Science and Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil; (G.d.A.N.); (L.N.d.L.S.)
- Laboratory of Materials Technology, Department of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil
- Correspondence: (D.d.S.G.); (R.d.S.V.); (R.R.M.); Tel.: +55-083-2101-1183 (R.R.M.)
| | - Bianca Viana de Sousa
- Department of Chemical Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil;
| | - Gelmires de Araújo Neves
- Graduate Program in Materials Science and Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil; (G.d.A.N.); (L.N.d.L.S.)
| | - Lisiane Navarro de Lima Santana
- Graduate Program in Materials Science and Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil; (G.d.A.N.); (L.N.d.L.S.)
| | - Romualdo Rodrigues Menezes
- Laboratory of Materials Technology, Department of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil
- Correspondence: (D.d.S.G.); (R.d.S.V.); (R.R.M.); Tel.: +55-083-2101-1183 (R.R.M.)
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Yergeshov AA, Zoughaib M, Ishkaeva RA, Savina IN, Abdullin TI. Regenerative Activities of ROS-Modulating Trace Metals in Subcutaneously Implanted Biodegradable Cryogel. Gels 2022; 8:118. [PMID: 35200498 PMCID: PMC8872170 DOI: 10.3390/gels8020118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 01/27/2023] Open
Abstract
Divalent trace metals (TM), especially copper (Cu), cobalt (Co) and zinc (Zn), are recognized as essential microelements for tissue homeostasis and regeneration. To achieve a balance between therapeutic activity and safety of administered TMs, effective gel formulations of TMs with elucidated regenerative mechanisms are required. We studied in vitro and in vivo effects of biodegradable macroporous cryogels doped with Cu, Co or Zn in a controllable manner. The extracellular ROS generation by metal dopants was assessed and compared with the intracellular effect of soluble TMs. The stimulating ability of TMs in the cryogels for cell proliferation, differentiation and cytokine/growth factor biosynthesis was characterized using HSF and HUVEC primary human cells. Multiple responses of host tissues to the TM-doped cryogels upon subcutaneous implantation were characterized taking into account the rate of biodegradation, production of HIF-1α/matrix metalloproteinases and the appearance of immune cells. Cu and Zn dopants did not disturb the intact skin organization while inducing specific stimulating effects on different skin structures, including vasculature, whereas Co dopant caused a significant reorganization of skin layers, the appearance of multinucleated giant cells, along with intense angiogenesis in the dermis. The results specify and compare the prooxidant and regenerative potential of Cu, Co and Zn-doped biodegradable cryogels and are of particular interest for the development of advanced bioinductive hydrogel materials for controlling angiogenesis and soft tissue growth.
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Affiliation(s)
- Abdulla A. Yergeshov
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia; (A.A.Y.); (M.Z.); (R.A.I.)
| | - Mohamed Zoughaib
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia; (A.A.Y.); (M.Z.); (R.A.I.)
| | - Rezeda A. Ishkaeva
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia; (A.A.Y.); (M.Z.); (R.A.I.)
| | - Irina N. Savina
- School of Applied Sciences, University of Brighton, Huxley Building, Lewes Road, Brighton BN2 4GJ, UK;
| | - Timur I. Abdullin
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia; (A.A.Y.); (M.Z.); (R.A.I.)
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7
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Li T, Zhang T. The Application of Nanomaterials in Angiogenesis. Curr Stem Cell Res Ther 2021; 16:74-82. [PMID: 32066364 DOI: 10.2174/1574888x15666200211102203] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 12/16/2019] [Accepted: 01/07/2020] [Indexed: 02/08/2023]
Abstract
Induction of angiogenesis has enormous potential in the treatment of ischemic diseases and
the promotion of bulk tissue regeneration. However, the poor activity of angiogenic cells and proangiogenic
factors after transplantation is the main problem that imposes its wide applications. Recent
studies have found that the development of nanomaterials has solved this problem to some extent.
Nanomaterials can be mainly classified into inorganic nanomaterials represented by metals, metal oxides
and metal hydroxides, and organic nanomaterials including DNA tetrahedrons, graphene, graphene
oxide, and carbon nanotubes. These nanomaterials can induce the release of angiogenic factors
either directly or indirectly, thereby initiating a series of signaling pathways to induce angiogenesis.
Moreover, appropriate surface modifications of nanomaterial facilitate a variety of functions, such as
enhancing its biocompatibility and biostability. In clinical applications, nanomaterials can promote the
proliferation and differentiation of endothelial cells or mesenchymal stem cells, thereby promoting the
migration of hemangioblast cells to form new blood vessels. This review outlines the role of nanomaterials
in angiogenesis and is intended to provide new insights into the clinical treatment of systemic
and ischemic diseases.
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Affiliation(s)
- Tianle Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Tao Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Mostafa D, Alzahrani M, Alatawi JA, Alsirhani SF, Alshehri A, Mazyed Almutiri A. Effect of Hyaluronic Acid Gel on Healing of Simple Dental Extraction Sockets: A Pilot Study. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Hyaluronic acid (HA) was explored as a powerful positive biocompatible material that participates in numerous biological processes related to morphogenesis and tissue healing.
AIM: In this context, we elevated in this pilot study the effect of HA on soft tissue healing and bone repair of dental sockets (DS) as well as the postoperative pain.
MATERIALS AND METHODS: Ten individuals of both genders (80% females and 20% males) with age range 18–44 years, were included who were diagnosed with two non-restorable teeth (total sockets n = 20). A split-mouth study design was performed where the DS of each patient were divided into Group A (study group): Topical oral HA gel (Gengigel®) was applied into sockets while Group B (control group): Sockets were left untreated. Study variables were evaluated including socket length, socket healing scores (healing index), and post-operative pain in both groups at day 1, 5, and 10 for each patient.
RESULTS: There were no statistically significant differences between the control and study groups regarding the reduction of the socket length and postoperative complications but results revealed that HA enhances and fasten the healing capacity.
CONCLUSION: HA can be used as adjunctive treatment to improve the wound healing process.
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Zhang E, Zhao X, Hu J, Wang R, Fu S, Qin G. Antibacterial metals and alloys for potential biomedical implants. Bioact Mater 2021; 6:2569-2612. [PMID: 33615045 PMCID: PMC7876544 DOI: 10.1016/j.bioactmat.2021.01.030] [Citation(s) in RCA: 147] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/11/2021] [Accepted: 01/27/2021] [Indexed: 02/07/2023] Open
Abstract
Metals and alloys, including stainless steel, titanium and its alloys, cobalt alloys, and other metals and alloys have been widely used clinically as implant materials, but implant-related infection or inflammation is still one of the main causes of implantation failure. The bacterial infection or inflammation that seriously threatens human health has already become a worldwide complaint. Antibacterial metals and alloys recently have attracted wide attention for their long-term stable antibacterial ability, good mechanical properties and good biocompatibility in vitro and in vivo. In this review, common antibacterial alloying elements, antibacterial standards and testing methods were introduced. Recent developments in the design and manufacturing of antibacterial metal alloys containing various antibacterial agents were described in detail, including antibacterial stainless steel, antibacterial titanium alloy, antibacterial zinc and alloy, antibacterial magnesium and alloy, antibacterial cobalt alloy, and other antibacterial metals and alloys. Researches on the antibacterial properties, mechanical properties, corrosion resistance and biocompatibility of antibacterial metals and alloys have been summarized in detail for the first time. It is hoped that this review could help researchers understand the development of antibacterial alloys in a timely manner, thereby could promote the development of antibacterial metal alloys and the clinical application.
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Affiliation(s)
- Erlin Zhang
- Key Lab. for Anisotropy and Texture of Materials, Education Ministry of China, School of Materials Science and Engineering, Northeastern University, Shenyang, 150819, China
- Research Center for Metallic Wires, Northeastern University, Shenyang, 110819, China
| | - Xiaotong Zhao
- Key Lab. for Anisotropy and Texture of Materials, Education Ministry of China, School of Materials Science and Engineering, Northeastern University, Shenyang, 150819, China
| | - Jiali Hu
- Key Lab. for Anisotropy and Texture of Materials, Education Ministry of China, School of Materials Science and Engineering, Northeastern University, Shenyang, 150819, China
| | - Ruoxian Wang
- Key Lab. for Anisotropy and Texture of Materials, Education Ministry of China, School of Materials Science and Engineering, Northeastern University, Shenyang, 150819, China
| | - Shan Fu
- Key Lab. for Anisotropy and Texture of Materials, Education Ministry of China, School of Materials Science and Engineering, Northeastern University, Shenyang, 150819, China
| | - Gaowu Qin
- Key Lab. for Anisotropy and Texture of Materials, Education Ministry of China, School of Materials Science and Engineering, Northeastern University, Shenyang, 150819, China
- Research Center for Metallic Wires, Northeastern University, Shenyang, 110819, China
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Zhang Z, Wang Y, Teng W, Zhou X, Ye Y, Zhou H, Sun H, Wang F, Liu A, Lin P, Cui W, Yu X, Wu Y, Ye Z. An orthobiologics-free strategy for synergistic photocatalytic antibacterial and osseointegration. Biomaterials 2021; 274:120853. [PMID: 33975275 DOI: 10.1016/j.biomaterials.2021.120853] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 12/24/2022]
Abstract
Tissue damage caused by hyperthermia during photothermal therapy (PTT) has largely limited its clinical applications for implant infection. However, rescue of tissue regeneration by conjugating orthobiologics with PTT has been problematic as they can easily deactivate biologics while eradicating bacteria. Herein, we report an orthobiologics-free strategy to synergistically couple photocatalytic antibacterial with pro-osteogenic capacity via self-assembly of copper sulphide nanoparticle (CuS NP) and reduced graphene oxide (rGO) on implant surface. This strategy not only offers enhanced photothermal effects for bacterial eradiation via near-infrared light (NIR), but also promotes vascularized osseointegration via cooperation of copper ion with rGO. In vitro and in vivo data showed that coupling CuS and rGO synergistically increased antibacterial efficacy of implants by 40 times and successfully destroyed bacterial biofilm upon NIR. Moreover, CuS/rGO decorated surface substantially improved bone marrow stromal cell adhesion, proliferation, as well as subsequent differentiation toward osteoblast. We also revealed that enhanced peri-implant vascularization may be attributed to the sustained release of copper ion from CuS NPs, which further collaborated with rGO to promote vascularized osseointegration. Altogether, this novel orthobiologics-free approach offers a practical alternative to circumvent the intrinsic drawbacks of PTT and endows powerful antibacterial and pro-osteogenic capacities for implant associated infections.
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Affiliation(s)
- Zengjie Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang Province, PR China
| | - Yikai Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang Province, PR China
| | - Wangsiyuan Teng
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang Province, PR China
| | - Xingzhi Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang Province, PR China
| | - Yuxiao Ye
- School of Material Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Hao Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang Province, PR China
| | - Hangxiang Sun
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang Province, PR China
| | - Fangqian Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang Province, PR China
| | - An Liu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang Province, PR China
| | - Peng Lin
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang Province, PR China
| | - Wenguo Cui
- Shanghai Institute of Traumatology and Orthopaedics Ruijin Hospital, Shanghai, 200025, PR China; Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Xiaohua Yu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang Province, PR China.
| | - Yan Wu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang Province, PR China.
| | - Zhaoming Ye
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang Province, PR China.
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11
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Complementary and synergistic effects on osteogenic and angiogenic properties of copper-incorporated silicocarnotite bioceramic: In vitro and in vivo studies. Biomaterials 2020; 268:120553. [PMID: 33253963 DOI: 10.1016/j.biomaterials.2020.120553] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 10/26/2020] [Accepted: 11/18/2020] [Indexed: 01/09/2023]
Abstract
Promoting bone regeneration to treat bone defects is a challenging problem in orthopedics, and developing novel biomaterials with both osteogenic and angiogenic activities is sought as a feasible solution. Here, copper-silicocarnotite [Cu-Ca5(PO4)2SiO4, Cu-CPS] was designed and fabricated. In this study, the Cu-CPS ceramics demonstrated better mechanical, osteogenic, and angiogenic properties in vitro and in vivo than pure CPS one. Particularly, CPS with 1.0 wt% CuO (1.0Cu-CPS) exhibited the best performance. Additionally, hydroxyapatite with 1.0 wt% CuO (1.0Cu-HA) was used to explore the respective effects of copper and silicon (Si). According to the in vitro results, it indicated that Cu enhanced the osteogenic activity of CPS ceramics although Si played a dominate role in the osteogenic process. Moreover, Cu could promote an early stage of angiogenesis, and the complementary effect of Si and Cu was found in the late phase. Furthermore, the in vivo results illustrated that the synergistic effect of Cu and Si improved bone and vessel regeneration during the degradation of Cu-CPS scaffolds (P < 0.05). Therefore, Cu-CPS ceramics could improve osteogenesis and angiogenesis through the simultaneous effects of Cu and Si, thus, offering a promising treatment option in orthopedic application for bone tissue regeneration.
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12
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Wu XX, Zhang Y, Hu T, Li WX, Li ZL, Hu HJ, Zhu SR, Chen WZ, Zhou CS, Jiang GB. Long-term antibacterial composite via alginate aerogel sustained release of antibiotics and Cu used for bone tissue bacteria infection. Int J Biol Macromol 2020; 167:1211-1220. [PMID: 33189756 DOI: 10.1016/j.ijbiomac.2020.11.075] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/02/2020] [Accepted: 11/11/2020] [Indexed: 02/08/2023]
Abstract
Bone related-bacterial diseases including wound infections and osteomyelitis (OM) remain a serious problem accompanied with amputation in most severe cases. In this work, we report an exceptional effective antibacterial alginate aerogel, which consists of tigecycline (TGC) and octahedral Cu crystal as an organo-inorganic synergy platform for antibacterial and local infection therapy applications. The alginate aerogel could greatly prolong the release of copper ions and maintain effective antibacterial concentration over 18 days. The result of in-vitro experiments demonstrated that the alginate aerogel has an exceptional effective function on antibacterial activity. Cytotoxicity tests indicated that the alginate aerogel has low biological toxicity (average cell viability >75%). These remarkable results suggested that the alginate aerogel exhibits great potential for the treatment of OM, and has a prosperous future of application in bone tissue engineering.
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Affiliation(s)
- Xia-Xiao Wu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Yu Zhang
- Department of Orthopaedics, General Hospital of Southern Theatre Command of PLA, Guangzhou 510010, China
| | - Tian Hu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Wei-Xiong Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Zeng-Lin Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Han-Jian Hu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Shui-Rong Zhu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Wen-Zhao Chen
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Chu-Song Zhou
- Department of Orthopaedics, Zhu-Jiang Hospital of Southern Medical University (First Military Medical University), Guangzhou 510282, China.
| | - Gang-Biao Jiang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
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Rivera LR, Cochis A, Biser S, Canciani E, Ferraris S, Rimondini L, Boccaccini AR. Antibacterial, pro-angiogenic and pro-osteointegrative zein-bioactive glass/copper based coatings for implantable stainless steel aimed at bone healing. Bioact Mater 2020; 6:1479-1490. [PMID: 33251384 PMCID: PMC7674162 DOI: 10.1016/j.bioactmat.2020.11.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 01/08/2023] Open
Abstract
Stainless steel implants are suitable candidates for bone replacement due to their cytocompatibility and mechanical resistance, but they suffer from lack of bioactivity and are prone to bacterial infections. Accordingly, to overcome those limitations, in this study we developed by electrophoretic deposition (EPD), an innovative surface coating made of (i) zein, a natural fibroblast-friendly polymer, (ii) bioactive glass, a pro-osteogenic inorganic material and (iii) copper containing bioactive glass, an antibacterial and pro-angiogenic material. FESEM images confirmed that porous, uniform and free of cracks coatings were obtained by EPD; moreover, coatings were resistant to mechanical stress as demonstrated by the tape test, resulting in a 4B classification of adhesion to the substrate. The coatings were cytocompatible as indicated by metabolism evaluation of human fibroblasts, endothelial cells and mature or progenitor osteoblasts cultivated in direct contact with the specimens. They also maintained pro-osteogenic properties towards undifferentiated progenitor cells that expressed osteogenic genes after 15 days of direct cultivation. Copper conferred antibacterial properties as biofilm formation of the joint pathogens Staphylococcus aureus, Staphylococcus epidermidis and Escherichia coli was significantly reduced in comparison with copper-free coatings (p < 0.05). Moreover, this anti-infective activity resulted as targeted towards bacteria while the cells viability was preserved when cells and bacteria were cultivated in the same environment by a co-culture assay. Finally, copper ability to recruit blood vessels and to inhibit bacterial infection was confirmed in vivo where the growth of S. aureus biofilm was inhibited and the formation of new (<50 μm diameter spread) blood vessels was observed.
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Affiliation(s)
- Laura Ramos Rivera
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Andrea Cochis
- Department of Health Sciences, Università del Piemonte UPO, Novara, Italy.,Center for Translational Research on Autoimmune and Allergic Diseases-CAAD, Novara, Italy
| | - Sarah Biser
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Elena Canciani
- Department of Department of Biomedical, Surgical and Dental Sciences, Thin Section Lab, University of Milan, Milan, Italy
| | - Sara Ferraris
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Lia Rimondini
- Department of Health Sciences, Università del Piemonte UPO, Novara, Italy.,Center for Translational Research on Autoimmune and Allergic Diseases-CAAD, Novara, Italy
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany
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14
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Liu S, Yu J, Zhang Q, Lu H, Qiu X, Zhou D, Qi Y, Huang Y. Dual Cross-linked HHA Hydrogel Supplies and Regulates MΦ2 for Synergistic Improvement of Immunocompromise and Impaired Angiogenesis to Enhance Diabetic Chronic Wound Healing. Biomacromolecules 2020; 21:3795-3806. [DOI: 10.1021/acs.biomac.0c00891] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Sha Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Jie Yu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Qingfei Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Hongtong Lu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Xuepeng Qiu
- University of Science and Technology of China, Hefei 230026, P. R. China
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Dongfang Zhou
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- School of Pharmaceutical Sciences Southern Medical University Guangzhou 510515, P. R. China
| | - Yanxin Qi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Yubin Huang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
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15
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Raut HK, Das R, Liu Z, Liu X, Ramakrishna S. Biocompatibility of Biomaterials for Tissue Regeneration or Replacement. Biotechnol J 2020; 15:e2000160. [DOI: 10.1002/biot.202000160] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/19/2020] [Indexed: 12/25/2022]
Affiliation(s)
- Hemant Kumar Raut
- Division of Engineering Product Development Singapore University of Technology and Design 8 Somapah Rd Singapore 487372 Republic of Singapore
| | - Rupambika Das
- Division of Engineering Product Development Singapore University of Technology and Design 8 Somapah Rd Singapore 487372 Republic of Singapore
| | - Ziqian Liu
- Department of Mechanical Materials, and Manufacturing Engineering The University of Nottingham Ningbo, China 199 Taikang East Road Ningbo 315100 China
| | - Xiaoling Liu
- Department of Mechanical Materials, and Manufacturing Engineering The University of Nottingham Ningbo, China 199 Taikang East Road Ningbo 315100 China
| | - Seeram Ramakrishna
- Centre for Nanofibers and Nanotechnology Department of Mechanical Engineering National University of Singapore Singapore 117574 Singapore
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16
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A potential strategy for in-stent restenosis: Inhibition of migration and proliferation of vascular smooth muscle cells by Cu ion. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:111090. [PMID: 32600694 DOI: 10.1016/j.msec.2020.111090] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 05/07/2020] [Accepted: 05/08/2020] [Indexed: 11/23/2022]
Abstract
The in-stent restenosis (ISR) often happens after the implantation of metal stents, including both bare metal stents (BMSs) and drug-eluting stents (DESs). Drug release from DESs could reduce significantly the occurrence of ISR but also suppress the revascularization and cause thrombosis. In this study, the effect of Cu ion in a range of 0 to 500 μM on the migration and proliferation of rat aortic smooth muscle cells (RASMCs) was investigated by a series of in vitro experiments including wound-healing assay, cell viability assay and flow cytometric analysis. It has been found that the critical concentration of Cu ion should be at least 250 μM in order to significantly inhibit the migration of RASMCs and the proliferation of RASMCs were impeded by every dose of Cu ion used in this study. In addition, the protein level of caspase-3 was upregulated by 250 μM and 500 μM Cu2+ exposure, which might be the main reason for RASMCs apoptosis. Thus, it is proposed that ISR might be prevented by the constant release of Cu ion.
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17
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Wolf-Brandstetter C, Beutner R, Hess R, Bierbaum S, Wagner K, Scharnweber D, Gbureck U, Moseke C. Multifunctional calcium phosphate based coatings on titanium implants with integrated trace elements. Biomed Mater 2020; 15:025006. [DOI: 10.1088/1748-605x/ab5d7b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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18
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Kumar A, Bera A, Kumar S. A Smartphone‐Assisted Sensitive, Selective and Reversible Recognition of Copper Ions in an Aqueous Medium. ChemistrySelect 2020. [DOI: 10.1002/slct.201904399] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Arvind Kumar
- Department of Chemistry, St. Stephen's CollegeUniversity Enclave Delhi- 110007 India
- Department of ChemistryUniversity of Delhi Delhi- 110007 India
| | - Anuradha Bera
- Defence laboratory Jodhpur, Jodhpur 342011 Rajasthan India
| | - Satish Kumar
- Department of Chemistry, St. Stephen's CollegeUniversity Enclave Delhi- 110007 India
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19
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Dalisson B, Barralet J. Bioinorganics and Wound Healing. Adv Healthc Mater 2019; 8:e1900764. [PMID: 31402608 DOI: 10.1002/adhm.201900764] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/19/2019] [Indexed: 12/18/2022]
Abstract
Wound dressings and the healing enhancement (increasing healing speed and quality) are two components of wound care that lead to a proper healing. Wound care today consists mostly of providing an optimal environment by removing waste and necrotic tissues from a wound, preventing infections, and keeping the wounds adequately moist. This is however often not enough to re-establish the healing process in chronic wounds; with the local disruption of vascularization, the local environment is lacking oxygen, nutrients, and has a modified ionic and molecular concentration which limits the healing process. This disruption may affect cellular ionic pumps, energy production, chemotaxis, etc., and will affect the healing process. Biomaterials for wound healing range from simple absorbents to sophisticated bioactive delivery vehicles. Often placing a material in or on a wound can change multiple parameters such as pH, ionic concentration, and osmolarity, and it can be challenging to pinpoint key mechanism of action. This article reviews the literature of several inorganic ions and molecules and their potential effects on the different wound healing phases and their use in new wound dressings.
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Affiliation(s)
| | - Jake Barralet
- Faculty of DentistryMcGill University Montreal H3A 1G1 QC Canada
- Division of OrthopaedicsDepartment of SurgeryFaculty of MedicineMcGill University Montreal H4A 0A9 QC Canada
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20
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Development of multiactive antibacterial multilayers of hyaluronic acid and chitosan onto poly(ethylene terephthalate). Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.12.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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21
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Zhang J, Wu H, He F, Wu T, Zhou L, Ye J. Concentration-dependent osteogenic and angiogenic biological performances of calcium phosphate cement modified with copper ions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:1199-1212. [PMID: 30889654 DOI: 10.1016/j.msec.2019.02.042] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 01/26/2019] [Accepted: 02/13/2019] [Indexed: 01/14/2023]
Abstract
Development of multifunctional bone grafting biomaterials with both osteogenesis and angiogenesis properties have earned increasing interest in the field of regenerative medicine. In the present investigation, copper-doped β-tricalcium phosphate (Cu-TCP) powders were successfully synthesized. And Cu-containing calcium phosphate cement (Cu-CPC) was acquired through uniformly mixing CPC and Cu-TCP powders, with Cu-TCP serving as the donor of Cu2+. Cu-CPC exhibited suitable setting time, and the incorporation of Cu-TCP aggregating into CPC exhibited positive effect on the compressive strength while Cu2+ was in lower concentration. Investigation results showed that Cu-CPC had relatively low releasing amount of Cu2+, which was attributed to the re-bonding of Cu2+ into the newly formed HA crystals on surface. In vitro osteogenesis and angiogenesis properties of Cu-CPC were systematically evaluated through co-culture with mouse bone marrow stromal cells (mBMSCs) and human umbilical vein endothelial cells (HUVECs) respectively. The results indicated dose-dependent biological functions of Cu2+ in Cu-CPCs. The mBMSCs and HUVECs showed well activity and attachment morphology on TCP/CPC, 0.05 Cu-TCP/CPC, 0.1 Cu-TCP/CPC. The upregulated osteogenic-related genes expression and angiogenic-related genes expression were detected with lower Cu2+ content. Taken together, Cu-containing CPC is of great potential for the regeneration of vascularized new bone.
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Affiliation(s)
- Jing Zhang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Huae Wu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Fupo He
- School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Tingting Wu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China; Institute of Orthopedic Diseases and Center for Joint Surgery and Sports Medicine, the First Affiliated Hospital, Jinan University, Guangzhou 510006, China
| | - Lian Zhou
- Department of Stomatology, Peking Union Medical College (PUMC) Hospital, Chinese Academy of Medical Science (CAMS) and PUMC, Beijing 100730, China
| | - Jiandong Ye
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China.
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22
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Fernandes HR, Gaddam A, Rebelo A, Brazete D, Stan GE, Ferreira JMF. Bioactive Glasses and Glass-Ceramics for Healthcare Applications in Bone Regeneration and Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E2530. [PMID: 30545136 PMCID: PMC6316906 DOI: 10.3390/ma11122530] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 12/04/2018] [Accepted: 12/06/2018] [Indexed: 12/12/2022]
Abstract
The discovery of bioactive glasses (BGs) in the late 1960s by Larry Hench et al. was driven by the need for implant materials with an ability to bond to living tissues, which were intended to replace inert metal and plastic implants that were not well tolerated by the body. Among a number of tested compositions, the one that later became designated by the well-known trademark of 45S5 Bioglass® excelled in its ability to bond to bone and soft tissues. Bonding to living tissues was mediated through the formation of an interfacial bone-like hydroxyapatite layer when the bioglass was put in contact with biological fluids in vivo. This feature represented a remarkable milestone, and has inspired many other investigations aiming at further exploring the in vitro and in vivo performances of this and other related BG compositions. This paradigmatic example of a target-oriented research is certainly one of the most valuable contributions that one can learn from Larry Hench. Such a goal-oriented approach needs to be continuously stimulated, aiming at finding out better performing materials to overcome the limitations of the existing ones, including the 45S5 Bioglass®. Its well-known that its main limitations include: (i) the high pH environment that is created by its high sodium content could turn it cytotoxic; (ii) and the poor sintering ability makes the fabrication of porous three-dimensional (3D) scaffolds difficult. All of these relevant features strongly depend on a number of interrelated factors that need to be well compromised. The selected chemical composition strongly determines the glass structure, the biocompatibility, the degradation rate, and the ease of processing (scaffolds fabrication and sintering). This manuscript presents a first general appraisal of the scientific output in the interrelated areas of bioactive glasses and glass-ceramics, scaffolds, implant coatings, and tissue engineering. Then, it gives an overview of the critical issues that need to be considered when developing bioactive glasses for healthcare applications. The aim is to provide knowledge-based tools towards guiding young researchers in the design of new bioactive glass compositions, taking into account the desired functional properties.
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Affiliation(s)
- Hugo R Fernandes
- Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Anuraag Gaddam
- Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Avito Rebelo
- Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Daniela Brazete
- Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - George E Stan
- National Institute of Materials Physics, RO-077125 Magurele, Romania.
| | - José M F Ferreira
- Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
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ALCÂNTARA CEP, CASTRO MAA, NORONHA MSD, MARTINS-JUNIOR PA, MENDES RDM, CALIARI MV, MESQUITA RA, FERREIRA AJ. Hyaluronic acid accelerates bone repair in human dental sockets: a randomized triple-blind clinical trial. Braz Oral Res 2018; 32:e84. [DOI: 10.1590/1807-3107bor-2018.vol32.0084] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 07/16/2018] [Indexed: 12/20/2022] Open
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24
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Jakus A, Geisendorfer N, Lewis P, Shah R. 3D-printing porosity: A new approach to creating elevated porosity materials and structures. Acta Biomater 2018; 72:94-109. [PMID: 29601901 DOI: 10.1016/j.actbio.2018.03.039] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 02/23/2018] [Accepted: 03/21/2018] [Indexed: 12/14/2022]
Abstract
We introduce a new process that enables the ability to 3D-print high porosity materials and structures by combining the newly introduced 3D-Painting process with traditional salt-leaching. The synthesis and resulting properties of three 3D-printable inks comprised of varying volume ratios (25:75, 50:50, 70:30) of CuSO4 salt and polylactide-co-glycolide (PLGA), as well as their as-printed and salt-leached counterparts, are discussed. The resulting materials are comprised entirely of PLGA (F-PLGA), but exhibit porosities proportional to the original CuSO4 content. The three distinct F-PLGA materials exhibit average porosities of 66.6-94.4%, elastic moduli of 112.6-2.7 MPa, and absorbency of 195.7-742.2%. Studies with adult human mesenchymal stem cells (hMSCs) demonstrated that elevated porosity substantially promotes cell adhesion, viability, and proliferation. F-PLGA can also act as carriers for weak, naturally or synthetically-derived hydrogels. Finally, we show that this process can be extended to other materials including graphene, metals, and ceramics. STATEMENT OF SIGNIFICANCE Porosity plays an essential role in the performance and function of biomaterials, tissue engineering, and clinical medicine. For the same material chemistry, the level of porosity can dictate if it is cell, tissue, or organ friendly; with low porosity materials being far less favorable than high porosity materials. Despite its importance, it has been difficult to create three-dimensionally printed structures that are comprised of materials that have extremely high levels of internal porosity yet are surgically friendly (able to handle and utilize during surgical operations). In this work, we extend a new materials-centric approach to 3D-printing, 3D-Painting, to 3D-printing structures made almost entirely out of water-soluble salt. The structures are then washed in a specific way that not only extracts the salt but causes the structures to increase in size. With the salt removed, the resulting medical polymer structures are almost entirely porous and contain very little solid material, but the maintain their 3D-printed form and are highly compatible with adult human stem cells, are mechanically robust enough to use in surgical manipulations, and can be filled with and act as carriers for biologically active liquids and gels. We can also extend this process to three-dimensionally printing other porous materials, such as graphene, metals, and even ceramics.
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25
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Evaluation of promoting effect of a novel Cu-bearing metal stent on endothelialization process from in vitro and in vivo studies. Sci Rep 2017; 7:17394. [PMID: 29234061 PMCID: PMC5727161 DOI: 10.1038/s41598-017-17737-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 11/29/2017] [Indexed: 11/28/2022] Open
Abstract
Drug eluting stents (DES) have been extensively applied nowadays and reduce the incidence of in-stent restenosis (ISR) greatly as compared with bare metal stents (BMS). However, the development of DES is hindered by the risk of late stent thrombosis (LST) due to delayed re-endothelialization, while endothelialization is an important process related to ISR and LST after implantation. 316L is a traditional stent material without bioactivity and have a high risk of ISR. Cu is recognized for angiogenesis stimulation in these years. Hence a copper bearing 316L stainless steel (316L-Cu) was prepared and evaluated about its effect on endothelialization in this paper. Compared with traditional 316L, it was proved that 316L-Cu increased the proliferation of co-cultured human umbilical vein endothelial cells (HUVECs) at first day. Moreover, HUVECs stretched better on the surface of 316L-Cu. It also improved the expression of angiogenesis related genes and tube formation ability in vitro. 316L-Cu-BMS, DES and 316L-BMS were implanted in swine to evaluate the re-endothelialization ability in vivo. And 316L-Cu-BMS showed the best effect on endothelialization with good biosafety. Consequently, 316L-Cu is a kind of promising BMS material for coronary field.
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26
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Jin S, Qi X, Wang T, Ren L, Yang K, Zhong H. In vitro study of stimulation effect on endothelialization by a copper bearing cobalt alloy. J Biomed Mater Res A 2017; 106:561-569. [PMID: 28984065 DOI: 10.1002/jbm.a.36263] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 08/29/2017] [Accepted: 09/12/2017] [Indexed: 01/03/2023]
Abstract
Endothelialization is an important process after stenting in coronary artery. Recovery of the injured site timely can reduce the neointima formation and platelet absorbance, leading to a lower risk of in-stent restenosis. Copper is known to be critical in vascular construction. Thus a combination of copper with stent materials is a meaningful attempt. A copper bearing L605-Cu cobalt alloy was prepared and its effect on human umbilical vein endothelial cells (HUVECs) was evaluated in vitro in this study. It was found that HUVECs attached and stretched better on the surface of L605-Cu compared with L605, and the apoptosis of cells was decreased simultaneously. The migration and tube formation of HUVECs were also enhanced by the extract of L605-Cu. Furthermore, L605-Cu increased the mRNA expression of VEGF in HUVECs significantly. However it had no effect on the secretion of NO or mRNA expression of eNOS. The result of blood clotting test indicated that L605-Cu had better blood compatibility. These results above have demonstrated that the L605-Cu alloy is promising to be a new stent material with function of accelerating endothelialization. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 561-569, 2018.
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Affiliation(s)
- Shujing Jin
- School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116024, China.,Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Xun Qi
- Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of Diagnostic Imaging and Interventional Radiology of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Tongmin Wang
- School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Ling Ren
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Hongshan Zhong
- Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of Diagnostic Imaging and Interventional Radiology of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
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Active release coating of multilayer assembled branched and ionic β-cyclodextrins onto poly(ethylene terephthalate). Carbohydr Polym 2017; 174:65-71. [DOI: 10.1016/j.carbpol.2017.06.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/09/2017] [Accepted: 06/14/2017] [Indexed: 12/31/2022]
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Andrade VB, Sá MA, Mendes RM, Martins-Júnior PA, Silva GA, Sousa BR, Caliari MV, Ávila ES, Ladeira LO, Resende RR, Ferreira AJ. Enhancement of Bone Healing by Local Administration of Carbon Nanotubes Functionalized with Sodium Hyaluronate in Rat Tibiae. Cells Tissues Organs 2017; 204:137-149. [DOI: 10.1159/000453030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2016] [Indexed: 11/19/2022] Open
Abstract
It has been reported that carbon nanotubes (CNTs) serve as nucleation sites for the deposition of bone matrix and cell proliferation. Here, we evaluated the effects of multi-walled CNTs (MWCNTs) on bone repair of rat tibiae. Furthermore, because sodium hyaluronate (HY) accelerates bone restoration, we associated CNTs with HY (HY-MWCNTs) in an attempt to boost bone repair. The bone defect was created by a 1.6-mm-diameter drill. After 7 and 14 days, tibiae were processed for histological and morphometric analyses. Immunohistochemistry was used to evaluate the expression of vascular endothelial growth factor (VEGF) in bone defects. Expression of osteocalcin (OCN), bone morphogenetic protein-2 (BMP-2), and collagen I (Col I) was assessed by real-time PCR. Histomorphometric analysis showed a similar increase in the percentage of bone trabeculae in tibia bone defects treated with HY and HY-MWCNTs, and both groups presented more organized and thicker bone trabeculae than nontreated defects. Tibiae treated with MWCNTs or HY- MWCNTs showed a higher expression of VEGF. Treatment with MWCNTs or HY-MWCNTs increased the expression of molecules involved in the bone repair process, such as OCN and BMP-2. Also, HY- and MWCNT-treated tibiae had an increased expression of Col I. Thus, it is tempting to conclude that CNTs associated or not with other materials such as HY emerged as a promising biomaterial for bone tissue engineering.
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Zhang H, Feng L, Jiang Y, Wong YT, He Y, Zheng G, He J, Tan Y, Sun H, Ho D. A reaction-based near-infrared fluorescent sensor for Cu2+ detection in aqueous buffer and its application in living cells and tissues imaging. Biosens Bioelectron 2017; 94:24-29. [DOI: 10.1016/j.bios.2017.02.037] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 01/16/2017] [Accepted: 02/23/2017] [Indexed: 01/02/2023]
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Palza H, Galarce N, Bejarano J, Beltran M, Caviedes P. Effect of copper nanoparticles on the cell viability of polymer composites. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1252343] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Humberto Palza
- Chemical Engineering and Biotechnology Department, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile
| | - Natalia Galarce
- Chemical Engineering and Biotechnology Department, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile
| | - Julian Bejarano
- Chemical Engineering and Biotechnology Department, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile
| | - Macarena Beltran
- Chemical Engineering and Biotechnology Department, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile
| | - Pablo Caviedes
- Program of Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
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Hu C, Sun H, Liu Z, Chen Y, Chen Y, Wu H, Ren K. Freestanding 3-D microvascular networks made of alginate hydrogel as a universal tool to create microchannels inside hydrogels. BIOMICROFLUIDICS 2016; 10:044112. [PMID: 27679676 PMCID: PMC5010556 DOI: 10.1063/1.4961969] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 08/18/2016] [Indexed: 06/06/2023]
Abstract
The diffusion of molecules such as nutrients and oxygen through densely packed cells is impeded by blockage and consumption by cells, resulting in a limited depth of penetration. This has been a major hurdle to a bulk (3-D) culture. Great efforts have been made to develop methods for generating branched microchannels inside hydrogels to support mass exchange inside a bulk culture. These previous attempts faced a common obstacle: researchers tried to fabricate microchannels with gels already loaded with cells, but the fabrication procedures are often harmful to the embedded cells. Herein, we present a universal strategy to create microchannels in different types of hydrogels, which effectively avoids cell damage. This strategy is based on a freestanding alginate 3-D microvascular network prepared by in-situ generation of copper ions from a sacrificial copper template. This alginate network could be used as implants to create microchannels inside different types of hydrogels. This approach effectively addresses the issue of cell damage during microfabrication and made it possible to create microchannels inside different types of gels. The microvascular network produced with this method is (1) strong enough to allow handling, (2) biocompatible to allow cell culturing, and (3) appropriately permeable to allow diffusion of small molecules, while sufficiently dense to prevent blocking of channels when embedded in different types of gels. In addition, composite microtubules could be prepared by simply pre-loading other materials, e.g., particles and large biomolecules, in the hydrogel. Compared with other potential strategies to fabricate freestanding gel channel networks, our method is more rapid, low-cost and scalable due to parallel processing using an industrially mass-producible template. We demonstrated the use of such vascular networks in creating microchannels in different hydrogels and composite gels, as well as with a cell culture in a nutrition gradient based on microfluidic diffusion. In this way, the freestanding hydrogel vascular network we produced is a universal functional unit that can be embedded in different types of hydrogel; users will be able to adopt this strategy to achieve vascular mass exchange in the bulk culture without changing their current protocol. The method is readily implementable to applications in vascular tissue regeneration, drug discovery, 3-D culture, etc.
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Affiliation(s)
- Chong Hu
- Department of Chemistry, The Hong Kong Baptist University , Waterloo Rd, Kowloon, Hong Kong, China
| | - Han Sun
- Department of Chemistry, The Hong Kong Baptist University , Waterloo Rd, Kowloon, Hong Kong, China
| | - Zhengzhi Liu
- Department of Chemistry, The Hong Kong Baptist University , Waterloo Rd, Kowloon, Hong Kong, China
| | - Yin Chen
- Division of Biomedical Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Yangfan Chen
- Department of Chemistry, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
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Miola M, Verné E. Bioactive and Antibacterial Glass Powders Doped with Copper by Ion-Exchange in Aqueous Solutions. MATERIALS (BASEL, SWITZERLAND) 2016; 9:E405. [PMID: 28773530 PMCID: PMC5456756 DOI: 10.3390/ma9060405] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 05/10/2016] [Accepted: 05/18/2016] [Indexed: 01/23/2023]
Abstract
In this work, two bioactive glass powders (SBA2 and SBA3) were doped with Cu by means of the ion-exchange technique in aqueous solution. SBA2 glass was subjected to the ion-exchange process by using different Cu salts (copper(II) nitrate, chloride, acetate, and sulphate) and concentrations. Structural (X-ray diffraction-XRD), morphological (Scanning Electron Microscopy-SEM), and compositional (Energy Dispersion Spectrometry-EDS) analyses evidenced the formation of crystalline phases for glasses ion-exchanged in copper(II) nitrate and chloride solutions; while the ion-exchange in copper(II) acetate solutions lead to the incorporation of higher Cu amount than the ion-exchange in copper(II) sulphate solutions. For this reason, the antibacterial test (inhibition halo towards S. aureus) was performed on SBA2 powders ion-exchanged in copper(II) acetate solutions and evidenced a limited antibacterial effect. A second glass composition (SBA3) was developed to allow a greater incorporation of Cu in the glass surface; SBA3 powders were ion-exchanged in copper(II) acetate solutions (0.01 M and 0.05 M). Cu-doped SBA3 powders showed an amorphous structure; morphological analysis evidenced a rougher surface for Cu-doped powders in comparison to the undoped glass. EDS and X-ray photoelectron spectroscopy (XPS) confirmed the Cu introduction as Cu(II) ions. Bioactivity test in simulated body fluid (SBF) showed that Cu introduction did not alter the bioactive behaviour of the glass. Finally, inhibition halo test towards S. aureus evidenced a good antimicrobial effect for glass powders ion-exchanged in copper(II) acetate solutions 0.05 M.
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Affiliation(s)
- Marta Miola
- Applied Science and Technology Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
| | - Enrica Verné
- Applied Science and Technology Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
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Sadikoglu TB, Nalbantgil D, Ulkur F, Ulas N. Effect of hyaluronic acid on bone formation in the expanded interpremaxillary suture in rats. Orthod Craniofac Res 2016; 19:154-61. [PMID: 27132627 DOI: 10.1111/ocr.12123] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To evaluate the histomorphometric effects of different molecular weight hyaluronic acid on bone formation in rats after expansion of the interpremaxillary suture. MATERIAL AND METHODS Twenty-four male Sprague Dawley rats were divided into three groups. Each group was subjected to expansion for 5 days and retention for 10 days. Group 1 received 50 μl of high molecular weight hyaluronic acid (HMWHA), group 2 received 50 μl of low molecular weight hyaluronic acid (LMWHA), and the control group received same amount of saline solution to the interpremaxillary suture. Ten days after injection, the rats were killed and their maxillas dissected. For the histomorphometric evaluation, blocks were serially sectioned at 10-μm intervals. Sections were stained with hematoxylin-eosin (HE) and evaluated with image analysis software. Bone area (μm²) (BA), bone perimeter of suture borders (μm) (BP), and ratio of osteoblast cells and capillary cells to BA and BP parameters were evaluated. RESULTS HMWHA showed a statistically higher ratio of osteoblast and capillary cell scores compared with the LMWHA and control groups (p < 0.05). There were no statistically significant differences in between LMWHA and control groups (p > 0.05). CONCLUSIONS Local injection of HMWHA in the interpremaxillary suture after rapid maxillary expansion stimulated new bone formation, which may shorten the retention period and may reduce the risk of relapse. LMWHA has no effect on bone formation in interpremaxillary suture.
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Affiliation(s)
- T B Sadikoglu
- Department of Orthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey
| | - D Nalbantgil
- Department of Orthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey
| | - F Ulkur
- Department of Orthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey
| | - N Ulas
- Department of Histology, Faculty of Medicine, Medipol University, Istanbul, Turkey
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Bührer G, Rottensteiner U, Hoppe A, Detsch R, Dafinova D, Fey T, Greil P, Weis C, Beier JP, Boccacini AR, Horch RE, Arkudas A. Evaluation of in vivo angiogenetic effects of copper doped bioactive glass scaffolds in the AV loop model. BIOMEDICAL GLASSES 2016. [DOI: 10.1515/bglass-2016-0013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstracteffects of 3D scaffolds made from 45S5 bioactive glass (BG) doped with 1 wt. % copper ions in the arteriovenous loop model of the rat.Materials and Methods: An arteriovenous loop was built in the groin of 10 rats and inserted in 1% copper doped 45S5 BG scaffolds and fibrin. The scaffold and the AV loop were inserted in Teflon isolation chambers and explanted 3 weeks after implantation. Afterwards the scaffolds were analyzed by Micro-CT and histology regarding vascularization. Results were compared to plain 45S5 BG-based scaffolds from a previous study.Results: Micro-CT and histological evaluation showed consistent vascularization of the constructs. A tendency towards an increased vascularization in the copper doped BG group compared to plain BG constructs could be observed. However, therewas no significant difference in statistical analysis between both groups.Conclusions: This study shows results that support an increased angiogenetic effect of 1% copper doped 45S5 BG compared to regular 45S5 BG scaffolds in the rat arteriovenous loop model although these tendencies are not backed by statistical evidence. Maybe higher copper doses could lead to a statistically significant angiogenetic effect.
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36
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Evaluation of carbon nanotubes functionalized with sodium hyaluronate in the inflammatory processes for oral regenerative medicine applications. Clin Oral Investig 2015; 20:1607-16. [DOI: 10.1007/s00784-015-1639-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 10/23/2015] [Indexed: 10/22/2022]
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Stähli C, James-Bhasin M, Hoppe A, Boccaccini AR, Nazhat SN. Effect of ion release from Cu-doped 45S5 Bioglass® on 3D endothelial cell morphogenesis. Acta Biomater 2015; 19:15-22. [PMID: 25770928 DOI: 10.1016/j.actbio.2015.03.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 02/10/2015] [Accepted: 03/05/2015] [Indexed: 11/28/2022]
Abstract
Both silicate-based bioactive glasses and copper ions have demonstrated angiogenic activity and therefore represent promising bioinorganic agents for the promotion of vascularization in tissue-engineered scaffolds. This study examined the effect of ionic release products from 45S5 Bioglass® doped with 0 and 2.5 wt.% CuO (BG and Cu-BG respectively) on the formation of capillary-like networks by SVEC4-10 endothelial cells (ECs) seeded in a three-dimensional (3D) type I collagen matrix. Copper and silicon release following 24h dissolution increased non-proportionally with Cu-BG concentration in cell culture medium, while calcium levels were decreased below the initial medium concentration. EC network length, connectivity, branching, quantified by means of a 3D morphometric image analysis method, as well as proliferation and metabolic activity were reduced in a dose-dependent fashion by BG and Cu-BG ionic release products. This reduction was less prominent for BG compared to an equivalent concentration of Cu-BG, which was attributed to a lower extent of silicon release and calcium consumption. Moreover, a CuCl2 dose equivalent to the highest concentration of Cu-BG exhibited no effect on ECs. In conclusion, while the previously reported pro-angiogenic activity of both Bioglass® and copper may not be reflected in a direct response of ECs, this study provides a maximum glass concentration for non-harmful angiogenic stimulation to be examined in future work.
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Affiliation(s)
- Christoph Stähli
- Department of Mining and Materials Engineering, McGill University, 3610 University Street, Montreal, QC H3A 0C5, Canada.
| | - Mark James-Bhasin
- Department of Mining and Materials Engineering, McGill University, 3610 University Street, Montreal, QC H3A 0C5, Canada.
| | - Alexander Hoppe
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany.
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany.
| | - Showan N Nazhat
- Department of Mining and Materials Engineering, McGill University, 3610 University Street, Montreal, QC H3A 0C5, Canada.
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Zhao S, Li L, Wang H, Zhang Y, Cheng X, Zhou N, Rahaman MN, Liu Z, Huang W, Zhang C. Wound dressings composed of copper-doped borate bioactive glass microfibers stimulate angiogenesis and heal full-thickness skin defects in a rodent model. Biomaterials 2015; 53:379-91. [PMID: 25890736 DOI: 10.1016/j.biomaterials.2015.02.112] [Citation(s) in RCA: 211] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 02/24/2015] [Accepted: 02/27/2015] [Indexed: 01/01/2023]
Abstract
There is a need for better wound dressings that possess the requisite angiogenic capacity for rapid in situ healing of full-thickness skin wounds. Borate bioactive glass microfibers are showing a remarkable ability to heal soft tissue wounds but little is known about the process and mechanisms of healing. In the present study, wound dressings composed of borate bioactive glass microfibers (diameter = 0.4-1.2 μm; composition 6Na2O, 8K2O, 8MgO, 22CaO, 54B2O3, 2P2O5; mol%) doped with 0-3.0 wt.% CuO were created and evaluated in vitro and in vivo. When immersed in simulated body fluid, the fibers degraded and converted to hydroxyapatite within ∼7 days, releasing ions such as Ca, B and Cu into the medium. In vitro cell culture showed that the ionic dissolution product of the fibers was not toxic to human umbilical vein endothelial cells (HUVECs) and fibroblasts, promoted HUVEC migration, tubule formation and secretion of vascular endothelial growth factor (VEGF), and stimulated the expression of angiogenic-related genes of the fibroblasts. When used to treat full-thickness skin defects in rodents, the Cu-doped fibers (3.0 wt.% CuO) showed a significantly better capacity to stimulate angiogenesis than the undoped fibers and the untreated defects (control) at 7 and 14 days post-surgery. The defects treated with the Cu-doped and undoped fibers showed improved collagen deposition, maturity and orientation when compared to the untreated defects, the improvement shown by the Cu-doped fibers was not markedly better than the undoped fibers at 14 days post-surgery. These results indicate that the Cu-doped borate glass microfibers have a promising capacity to stimulate angiogenesis and heal full-thickness skin defects. They also provide valuable data for understanding the role of the microfibers in healing soft tissue wounds.
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Affiliation(s)
- Shichang Zhao
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai 200233, People's Republic of China
| | - Le Li
- School of Materials Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China
| | - Hui Wang
- School of Materials Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China
| | - Yadong Zhang
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai 200233, People's Republic of China
| | - Xiangguo Cheng
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai 200233, People's Republic of China
| | - Nai Zhou
- School of Materials Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China
| | - Mohamed N Rahaman
- Department of Materials Science and Engineering, Missouri University of Science and Technology, Rolla, MO 65409-0340, USA.
| | - Zhongtang Liu
- Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai 200433, People's Republic of China
| | - Wenhai Huang
- School of Materials Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China
| | - Changqing Zhang
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai 200233, People's Republic of China.
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Zhao S, Wang H, Zhang Y, Huang W, Rahaman MN, Liu Z, Wang D, Zhang C. Copper-doped borosilicate bioactive glass scaffolds with improved angiogenic and osteogenic capacity for repairing osseous defects. Acta Biomater 2015; 14:185-96. [PMID: 25534470 DOI: 10.1016/j.actbio.2014.12.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 12/03/2014] [Accepted: 12/14/2014] [Indexed: 12/26/2022]
Abstract
There is growing interest in the use of synthetic biomaterials to deliver inorganic ions that are known to stimulate angiogenesis and osteogenesis in vivo. In the present study, we investigated the effects of varying amounts of copper in a bioactive glass on the response of human bone marrow-derived mesenchymal stem cells (hBMSCs) in vitro and on blood vessel formation and bone regeneration in rat calvarial defects in vivo. Porous scaffolds of a borosilicate bioactive glass (composition 6Na2O, 8K2O, 8MgO, 22CaO, 36B2O3, 18SiO2, 2P2O5, mol.%) doped with 0.5, 1.0 and 3.0wt.% CuO were created using a foam replication method. When immersed in simulated body fluid, the scaffolds released Cu ions into the medium and converted to hydroxyapatite. At the concentrations used, the Cu in the glass was not toxic to the hBMSCs cultured on the scaffolds in vitro. The alkaline phosphatase activity of the hBMSCs and the expression levels of angiogenic-related genes (vascular endothelial growth factor and basic fibroblast growth factor) and osteogenic-related genes (runt-related transcription factor 2, bone morphogenetic protein-2 and osteopontin) increased significantly with increasing amount of Cu in the glass. When implanted in rat calvarial defects in vivo, the scaffolds (3wt.% CuO) significantly enhanced both blood vessel formation and bone regeneration in the defects at 8weeks post-implantation. These results show that doping bioactive glass implants with Cu is a promising approach for enhancing angiogenesis and osteogenesis in the healing of osseous defects.
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Affiliation(s)
- Shichang Zhao
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai 200233, People's Republic of China
| | - Hui Wang
- School of Materials Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China
| | - Yadong Zhang
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai 200233, People's Republic of China
| | - Wenhai Huang
- School of Materials Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China
| | - Mohamed N Rahaman
- Department of Materials Science and Engineering, and Center for Biomedical Science and Engineering, Missouri University of Science and Technology, Rolla, MO 65409-0340, USA
| | - Zhongtang Liu
- Department of Orthopaedics, Shanghai Hospital, Second Military Medical University, Shanghai 200433, People's Republic of China
| | - Deping Wang
- School of Materials Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China.
| | - Changqing Zhang
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai 200233, People's Republic of China.
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Three-dimensional endothelial cell morphogenesis under controlled ion release from copper-doped phosphate glass. J Control Release 2015; 200:222-32. [DOI: 10.1016/j.jconrel.2015.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 12/28/2014] [Accepted: 01/03/2015] [Indexed: 01/23/2023]
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Qavi S, Pourmahdian S, Eslami H. Acrylamide Hydrogels Preparation via Free Radical Crosslinking Copolymerization: Kinetic Study and Morphological Investigation. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2014. [DOI: 10.1080/10601325.2014.937132] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Joviano-Santos JV, Sá MA, Maria MLAD, Almeida TCS, Geraldo V, Oliveira S, Ladeira LO, Ferreira AJ. Evaluation of cardiovascular toxicity of carbon nanotubes functionalized with sodium hyaluronate in oral regenerative medicine. ACTA ACUST UNITED AC 2014; 47:560-6. [PMID: 24863649 PMCID: PMC4123835 DOI: 10.1590/1414-431x20143894] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 03/17/2014] [Indexed: 11/26/2022]
Abstract
It has been demonstrated that carbon nanotubes (CNTs) associated with sodium
hyaluronate (HY-CNTs) accelerate bone repair in the tooth sockets of rats. Before
clinical application of HY-CNTs, it is important to assess their biocompatibility.
Moreover, cardiac toxicity may be caused by the translocation of these particles to
the blood stream. The aim of this study was to evaluate possible changes in
cardiovascular function in male Wistar rats whose tooth sockets were treated with
either CNTs or HY-CNTs (100 μg/mL, 0.1 mL). Blood pressure and heart rate were
monitored in conscious rats 7 days after treatment. Cardiac function was evaluated
using the Langendorff perfusion technique. The data showed no changes in blood
pressure or heart rate in rats treated with either CNTs or HY-CNTs, and no
significant changes in cardiac function were found in any of the groups. To confirm
these findings, experiments were conducted in rats injected intraperitoneally with a
high concentration of either CNTs or HY-CNTs (0.75 mg/kg). The same parameters were
analyzed and similar results were observed. The results obtained 7 days following
injection indicate that the administration of low concentrations of CNTs or HY-CNTs
directly into tooth sockets did not cause any significant change in cardiovascular
function in the rats. The present findings support the possibility of using these
biocomposites in humans.
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Affiliation(s)
- J V Joviano-Santos
- Departamento de Morfologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - M A Sá
- Departamento de Morfologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - M L A de Maria
- Departamento de Morfologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - T C S Almeida
- Departamento de Morfologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - V Geraldo
- Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - S Oliveira
- Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - L O Ladeira
- Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - A J Ferreira
- Departamento de Morfologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
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Poly(sucrose) micro particles preparation and their use as biomaterials. Int J Biol Macromol 2014; 66:236-44. [DOI: 10.1016/j.ijbiomac.2014.02.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/17/2014] [Accepted: 02/07/2014] [Indexed: 01/31/2023]
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Li S, Wang M, Chen X, Li SF, Li-Ling J, Xie HQ. Inhibition of osteogenic differentiation of mesenchymal stem cells by copper supplementation. Cell Prolif 2014; 47:81-90. [PMID: 24450813 DOI: 10.1111/cpr.12083] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 09/21/2013] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES Copper has been added to scaffolds when investigating bone repair, as an agent to promote vascularization; however, little is known concerning its effect on mesenchymal stem cells (MSCs), which are considered to be the origin of osteoblasts. In this study, we have aimed to elucidate effects of copper on osteogenic differentiation of MSCs. MATERIALS AND METHODS Rat bone marrow MSCs (rBMSCs) were used as a model. Their viability was assessed by MTT assay and Roche's CASY cell counter test and calcium deposition was evaluated by staining with alizarin red S. Fluorescent phalloidin F-actin stain was used to evaluate cytoskeletal changes, protein expressions were investigated by western blotting and mRNA levels were analysed using Q-PCR. A rat model for ectopic bone formation was used to assess effects of copper on MSCs in vivo. RESULTS Copper supplementation resulted in inhibition of osteogenesis of rBMSCs, along with reduction in expression of a number of osteogenic genes, alkaline phosphatase activity and formation of bone nodules. Cytoskeletal changes to cells during osteogenesis was inhibited by copper supplementation. In vivo study confirmed that copper could inhibit collagen formation whilst promoting angiogenesis. CONCLUSIONS Our study demonstrated that copper inhibited osteogenic differentiation of rBMSCs in vitro. The findings caution appropriate use of copper and have laid a foundation for further research.
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Affiliation(s)
- S Li
- Laboratory of Stem Cell and Tissue Engineering, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, 610041, China
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Palza H, Escobar B, Bejarano J, Bravo D, Diaz-Dosque M, Perez J. Designing antimicrobial bioactive glass materials with embedded metal ions synthesized by the sol–gel method. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:3795-801. [DOI: 10.1016/j.msec.2013.05.012] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 03/22/2013] [Accepted: 05/06/2013] [Indexed: 01/05/2023]
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Stähli C, Muja N, Nazhat SN. Controlled Copper Ion Release from Phosphate-Based Glasses Improves Human Umbilical Vein Endothelial Cell Survival in a Reduced Nutrient Environment. Tissue Eng Part A 2013; 19:548-57. [DOI: 10.1089/ten.tea.2012.0223] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Christoph Stähli
- Department of Mining and Materials Engineering, McGill University, Montreal, Canada
| | - Naser Muja
- Department of Mining and Materials Engineering, McGill University, Montreal, Canada
| | - Showan N. Nazhat
- Department of Mining and Materials Engineering, McGill University, Montreal, Canada
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Mori T, Hirose A, Hagiwara T, Ohtsuka M, Kakuta Y, Kimata K, Okahata Y. Single-Molecular Enzymatic Elongation of Hyaluronan Polymers Visualized by High-Speed Atomic Force Microscopy. J Am Chem Soc 2012. [DOI: 10.1021/ja309646s] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Toshiaki Mori
- Department of Biomolecular Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8501, Japan
- Precursory Research for Embryonic
Science and Technology (PRESTO), Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan
| | - Atsushi Hirose
- Department of Biomolecular Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8501, Japan
| | - Tatsuya Hagiwara
- Department of Biomolecular Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8501, Japan
| | - Masanori Ohtsuka
- Department of Biomolecular Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8501, Japan
| | - Yoshimitsu Kakuta
- Department of Biochemistry, Kyushu University, Fukuoka 812-8581, Japan
| | - Koji Kimata
- Institute for Molecular Science
of Medicine, Aichi Medical University,
Nagakute 480-1195, Japan
| | - Yoshio Okahata
- Department of Biomolecular Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku,
Yokohama 226-8501, Japan
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Giavaresi G, Tschon M, Daly JH, Liggat JJ, Sutherland DS, Agheli H, Fini M, Torricelli P, Giardino R. In vitro and in vivo response to nanotopographically-modified surfaces of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and polycaprolactone. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 17:1405-23. [PMID: 17260511 DOI: 10.1163/156856206778937226] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Colloidal lithography and embossing master are new techniques of producing nanotopography, which have been recently applied to improve tissue response to biomaterials by modifying the surface topography on a nano-scale dimension. A natural polyester (Biopol), 8% 3-hydroxyvalerate-component (D400G) and a conventional biodegradable polycaprolactone (PCL) were studied, both nanostructured and native forms, in vitro and in vivo. Nanopits (100-nm deep, 120-nm diameter) on the D400G surface were produced by the embossing master technique (Nano-D400G), while nanocylinders (160-nm height, 100-nm diameter) on the PCL surface were made by the colloidal lithography technique (Nano-PCL). L929 fibroblasts were seeded on polyesters, and cell proliferation, cytotoxic effect, synthetic and cytokine production were assessed after 72 h and 7 days. Then, under general anesthesia, 3 Sprague-Dawley rats received dorsal subcutaneous implants of nanostructured and native polyesters. At 1, 4 and 12 weeks the animals were pharmacologically euthanized and implants with surrounding tissue studied histologically and histomorphometrically. In vitro results showed significant differences between D400G and PCL in Interleukin-6 production at 72 h. At 7 days, significant (P < 0.05) differences were found in Interleukin-1beta and tumor necrosis factor-alpha release for Nano-PCL when compared to Nano-D400G, and for PCL in comparison with D400G. In vivo results indicated that Nano-D400G implants produced a greater extent of inflammatory tissue than Nano-PCL at 4 weeks. The highest vascular densities were observed for Nano-PCL at 4 and 12 weeks. Chemical and topographical factors seem to be responsible for the different behaviour, and from the obtained results a prevalence of chemistry on in vitro data and nanotopography on soft tissue response in vivo are hypothesized, although more detailed investigations are necessary in this field.
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Affiliation(s)
- Gianluca Giavaresi
- Department of Experimental Surgery, Research Institute 'Codivilla-Putti', Rizzoli Orthopaedic Institute, Via di Barbiano 1/10, I-40136 Bologna, Italy.
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Erol M, Mouriňo V, Newby P, Chatzistavrou X, Roether J, Hupa L, Boccaccini AR. Copper-releasing, boron-containing bioactive glass-based scaffolds coated with alginate for bone tissue engineering. Acta Biomater 2012; 8:792-801. [PMID: 22040685 DOI: 10.1016/j.actbio.2011.10.013] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2011] [Revised: 09/12/2011] [Accepted: 10/10/2011] [Indexed: 11/26/2022]
Abstract
The aim of this study was to synthesize and characterize new boron-containing bioactive glass-based scaffolds coated with alginate cross-linked with copper ions. A recently developed bioactive glass powder with nominal composition (wt.%) 65 SiO2, 15 CaO, 18.4 Na2O, 0.1 MgO and 1.5 B2O3 was fabricated as porous scaffolds by the foam replica method. Scaffolds were alginate coated by dipping them in alginate solution. Scanning electron microscopy investigations indicated that the alginate effectively attached on the surface of the three-dimensional scaffolds leading to a homogeneous coating. It was confirmed that the scaffold structure remained amorphous after the sintering process and that the alginate coating improved the scaffold bioactivity and mechanical properties. Copper release studies showed that the alginate-coated scaffolds allowed controlled release of copper ions. The novel copper-releasing composite scaffolds represent promising candidates for bone regeneration.
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Mouriño V, Cattalini JP, Boccaccini AR. Metallic ions as therapeutic agents in tissue engineering scaffolds: an overview of their biological applications and strategies for new developments. J R Soc Interface 2011; 9:401-19. [PMID: 22158843 PMCID: PMC3262432 DOI: 10.1098/rsif.2011.0611] [Citation(s) in RCA: 222] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
This article provides an overview on the application of metallic ions in the fields of regenerative medicine and tissue engineering, focusing on their therapeutic applications and the need to design strategies for controlling the release of loaded ions from biomaterial scaffolds. A detailed summary of relevant metallic ions with potential use in tissue engineering approaches is presented. Remaining challenges in the field and directions for future research efforts with focus on the key variables needed to be taken into account when considering the controlled release of metallic ions in tissue engineering therapeutics are also highlighted.
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Affiliation(s)
- Viviana Mouriño
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Biochemistry, University of Buenos Aires, 956 Junín Street, Sixth Floor, Buenos Aires CP1113, Argentina
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