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Kindi H, Willems C, Zhao M, Menzel M, Schmelzer CEH, Herzberg M, Fuhrmann B, Gallego-Ferrer G, Groth T. Metal Ion Doping of Alginate-Based Surface Coatings Induces Adipogenesis of Stem Cells. ACS Biomater Sci Eng 2022; 8:4327-4340. [PMID: 36174215 DOI: 10.1021/acsbiomaterials.2c00444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Metal ions are important effectors of protein and cell functions. Here, polyelectrolyte multilayers (PEMs) made of chitosan (Chi) and alginate (Alg) were doped with different metal ions (Ca2+, Co2+, Cu2+, and Fe3+), which can form bonds with their functional groups. Ca2+ and Fe3+ ions can be deposited in PEM at higher quantities resulting in more positive ζ potentials and also higher water contact angles in the case of Fe3+. An interesting finding was that the exposure of PEM to metal ions decreases the elastic modulus of PEM. Fourier transformed infrared (FTIR) spectroscopy of multilayers provides evidence of interaction of metal ions with the carboxylic groups of Alg but not for hydroxyl and amino groups. The observed changes in wetting and surface potential are partly related to the increased adhesion and proliferation of multipotent C3H10T1/2 fibroblasts in contrast to plain nonadhesive [Chi/Alg] multilayers. Specifically, PEMs doped with Cu2+ and Fe3+ ions greatly promote cell attachment and adipogenic differentiation, which indicates that changes in not only surface properties but also the bioactivity of metal ions play an important role. In conclusion, metal ion-doped multilayer coatings made of alginate and chitosan can promote the differentiation of multipotent cells on implants without the use of other morphogens like growth factors.
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Affiliation(s)
- Husnia Kindi
- Institute of Pharmacy, Department Biomedical Materials, Martin Luther University Halle-Wittenberg, Heinrich-Damerow Strasse 4, 06120 Halle (Saale), Germany
| | - Christian Willems
- Institute of Pharmacy, Department Biomedical Materials, Martin Luther University Halle-Wittenberg, Heinrich-Damerow Strasse 4, 06120 Halle (Saale), Germany
| | - Mingyan Zhao
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524003, China
| | - Matthias Menzel
- Department of Biological and Macromolecular Materials, Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Walter-Hülse-Strasse 1, 06120 Halle (Saale), Germany
| | - Christian E H Schmelzer
- Department of Biological and Macromolecular Materials, Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Walter-Hülse-Strasse 1, 06120 Halle (Saale), Germany
| | - Martin Herzberg
- Molecular Microbiology, Institute for Biology/Microbiology, Martin-Luther-University, Halle- Wittenberg, Kurt-Mothes-Strasse 3, 06120 Halle (Saale), Germany
| | - Bodo Fuhrmann
- Institute of Physics, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120 Halle (Saale), Germany.,Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120 Halle (Saale), Germany
| | - Gloria Gallego-Ferrer
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.,Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 46022 Valencia, Spain
| | - Thomas Groth
- Institute of Pharmacy, Department Biomedical Materials, Martin Luther University Halle-Wittenberg, Heinrich-Damerow Strasse 4, 06120 Halle (Saale), Germany.,Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120 Halle (Saale), Germany
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2
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Jarrah R, Sammak SE, Onyedimma C, Ghaith AK, Moinuddin F, Bhandarkar AR, Siddiqui A, Madigan N, Bydon M. The Role of Alginate Hydrogels as a Potential Treatment Modality for Spinal Cord Injury: A Comprehensive Review of the Literature. Neurospine 2022; 19:272-280. [PMID: 35793929 PMCID: PMC9260541 DOI: 10.14245/ns.2244186.093] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/23/2022] [Indexed: 12/14/2022] Open
Abstract
Objective To comprehensively characterize the utilization of alginate hydrogels as an alternative treatment modality for spinal cord injury (SCI).
Methods An extensive review of the published literature on studies using alginate hydrogels to treat SCI was performed. The review of the literature was performed using electronic databases such as PubMed, EMBASE, and OVID MEDLINE electronic databases. The keywords used were “alginate,” “spinal cord injury,” “biomaterial,” and “hydrogel.”
Results In the literature, we identified a total of 555 rat models that were treated with alginate scaffolds for regenerative biomarkers. Alginate hydrogels were found to be efficient and promising substrates for tissue engineering, drug delivery, neural regeneration, and cellbased therapies for SCI repair. With its ability to act as a pro-regenerative and antidegenerative agent, the alginate hydrogel has the potential to improve clinical outcomes.
Conclusion The emerging developments of alginate hydrogels as treatment modalities may support current and future tissue regenerative strategies for SCI.
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Affiliation(s)
- Ryan Jarrah
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA
- Mayo Clinic Neuro-informatics Laboratory, Mayo Clinic, Rochester, MN, USA
| | - Sally El Sammak
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA
- Mayo Clinic Neuro-informatics Laboratory, Mayo Clinic, Rochester, MN, USA
| | - Chiduziem Onyedimma
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA
- Mayo Clinic Neuro-informatics Laboratory, Mayo Clinic, Rochester, MN, USA
| | - Abdul Karim Ghaith
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA
- Mayo Clinic Neuro-informatics Laboratory, Mayo Clinic, Rochester, MN, USA
| | - F.M. Moinuddin
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA
- Mayo Clinic Neuro-informatics Laboratory, Mayo Clinic, Rochester, MN, USA
| | - Archis R. Bhandarkar
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA
- Mayo Clinic Neuro-informatics Laboratory, Mayo Clinic, Rochester, MN, USA
| | - Ahad Siddiqui
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | | | - Mohamad Bydon
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA
- Mayo Clinic Neuro-informatics Laboratory, Mayo Clinic, Rochester, MN, USA
- Corresponding Author Mohamad Bydon Department of Neurosurgery, Mayo Clinic, 200 First Street SW, Rochester, Minnesota, USA
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Saxena A, Sharda S, Kumar S, Kumar B, Shirodkar S, Dahiya P, Sahney R. Synthesis of Alginate Nanogels with Polyvalent 3D Transition Metal Cations: Applications in Urease Immobilization. Polymers (Basel) 2022; 14:polym14071277. [PMID: 35406151 PMCID: PMC9002911 DOI: 10.3390/polym14071277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/31/2021] [Accepted: 11/04/2021] [Indexed: 11/29/2022] Open
Abstract
Biocompatible nanogels are highly in demand and have the potential to be used in various applications, e.g., for the encapsulation of sensitive biomacromolecules. In the present study, we have developed water-in-oil microemulsions of sodium alginate sol/hexane/Span 20 as a template for controlled synthesis of alginate nanogels, cross-linked with 3d transition metal cations (Mn2+, Fe3+, and Co2+). The results suggest that the stable template of 110 nm dimensions can be obtained by microemulsion technique using Span 20 at concentrations of 10mM and above, showing a zeta potential of −57.3 mV. A comparison of the effects of the cross-links on the morphology, surface charge, protein (urease enzyme) encapsulation properties, and stability of the resulting nanogels were studied. Alginate nanogels, cross-linked with Mn2+, Fe3+, or Co2+ did not show any gradation in the hydrodynamic diameter. The shape of alginate nanogels, cross-linked with Mn2+ or Co2+, were spherical; whereas, nanogels cross-linked with Fe3+ (Fe–alginate) were non-spherical and rice-shaped. The zeta potential, enzyme loading efficiency, and enzyme activity of Fe–alginate was the highest among all the nanogels studied. It was found that the morphology of particles influenced the percent immobilization, loading capacity, and loading efficiency of encapsulated enzymes. These particles are promising candidates for biosensing and efficient drug delivery due to their relatively high loading capacity, biocompatibility, easy fabrication, and easy handling.
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Affiliation(s)
- Abhishek Saxena
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201303, India; (A.S.); (S.S.); (B.K.); (S.S.); (P.D.)
| | - Shivani Sharda
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201303, India; (A.S.); (S.S.); (B.K.); (S.S.); (P.D.)
| | - Sumit Kumar
- Radioanalytical Chemistry Division, Radiological Laboratories, Bhabha Atomic Research Centre, Mumbai 40008, India;
| | - Benu Kumar
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201303, India; (A.S.); (S.S.); (B.K.); (S.S.); (P.D.)
| | - Sheetal Shirodkar
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201303, India; (A.S.); (S.S.); (B.K.); (S.S.); (P.D.)
| | - Praveen Dahiya
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201303, India; (A.S.); (S.S.); (B.K.); (S.S.); (P.D.)
| | - Rachana Sahney
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201303, India; (A.S.); (S.S.); (B.K.); (S.S.); (P.D.)
- Correspondence: ; Tel.: +91-9810-2820-38
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Sikkema R, Keohan B, Zhitomirsky I. Alginic Acid Polymer-Hydroxyapatite Composites for Bone Tissue Engineering. Polymers (Basel) 2021; 13:polym13183070. [PMID: 34577971 PMCID: PMC8471633 DOI: 10.3390/polym13183070] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 09/05/2021] [Accepted: 09/07/2021] [Indexed: 12/28/2022] Open
Abstract
Natural bone is a composite organic-inorganic material, containing hydroxyapatite (HAP) as an inorganic phase. In this review, applications of natural alginic acid (ALGH) polymer for the fabrication of composites containing HAP are described. ALGH is used as a biocompatible structure directing, capping and dispersing agent for the synthesis of HAP. Many advanced techniques for the fabrication of ALGH-HAP composites are attributed to the ability of ALGH to promote biomineralization. Gel-forming and film-forming properties of ALGH are key factors for the development of colloidal manufacturing techniques. Electrochemical fabrication techniques are based on strong ALGH adsorption on HAP, pH-dependent charge and solubility of ALGH. Functional properties of advanced composite ALGH-HAP films and coatings, scaffolds, biocements, gels and beads are described. The composites are loaded with other functional materials, such as antimicrobial agents, drugs, proteins and enzymes. Moreover, the composites provided a platform for their loading with cells for the fabrication of composites with enhanced properties for various biomedical applications. This review summarizes manufacturing strategies, mechanisms and outlines future trends in the development of functional biocomposites.
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Wardhani DH, Ulya HN, Rahmawati A, Sugiarto TV, Kumoro AC, Aryanti N. Preparation of degraded alginate as a pH-dependent release matrix for spray-dried iron and its encapsulation performances. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Zhou N, Ma X, Bernaerts KV, Ren P, Hu W, Zhang T. Expansion of Ovarian Cancer Stem-like Cells in Poly(ethylene glycol)-Cross-Linked Poly(methyl vinyl ether-alt-maleic acid) and Alginate Double-Network Hydrogels. ACS Biomater Sci Eng 2020; 6:3310-3326. [DOI: 10.1021/acsbiomaterials.9b01967] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Naizhen Zhou
- State Key Lab of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Xiaoe Ma
- State Key Lab of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Katrien V. Bernaerts
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Geleen, The Netherlands
| | - Pengfei Ren
- State Key Lab of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Wanjun Hu
- State Key Lab of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Tianzhu Zhang
- State Key Lab of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
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Auerbach H, Giammanco GE, Schünemann V, Ostrowski AD, Carrano CJ. Mössbauer Spectroscopic Characterization of Iron(III)–Polysaccharide Coordination Complexes: Photochemistry, Biological, and Photoresponsive Materials Implications. Inorg Chem 2017; 56:11524-11531. [DOI: 10.1021/acs.inorgchem.7b00686] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Hendrik Auerbach
- Department of Physics, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Giuseppe E. Giammanco
- Department of Chemistry, Bowling Green State University, Bowling
Green, Ohio 43403 United States
| | - Volker Schünemann
- Department of Physics, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Alexis D. Ostrowski
- Department of Chemistry, Bowling Green State University, Bowling
Green, Ohio 43403 United States
| | - Carl J. Carrano
- Department of Chemistry and Biochemistry, San Diego State University, San Diego, California 92182-1030, United States
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8
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Kloster GA, Muraca D, Mosiewicki MA, Marcovich NE. Magnetic composite films based on alginate and nano-iron oxide particles obtained by synthesis “in situ”. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.06.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Li H, Yang P, Pageni P, Tang C. Recent Advances in Metal-Containing Polymer Hydrogels. Macromol Rapid Commun 2017; 38:10.1002/marc.201700109. [PMID: 28547817 PMCID: PMC5599250 DOI: 10.1002/marc.201700109] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 03/31/2017] [Indexed: 12/14/2022]
Abstract
Metal-containing polymer hydrogels have attracted increasing interest in recent years due to their outstanding properties such as biocompatibility, recoverability, self-healing, and/or redox activity. In this short review, methods for the preparation of metal-containing polymer hydrogels are introduced and an overview of these hydrogels with various functionalities is given. It is hoped that this short update can stimulate innovative ideas to promote the research of metal-containing hydrogels in the communities.
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Affiliation(s)
- Hui Li
- School of Chemistry and Chemical Engineering and Shandong Key Laboratory of Fluorine Chemistry and Chemical Engineering Materials, University of Jinan, Jinan, 250022, China
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
| | - Peng Yang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
| | - Parasmani Pageni
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
| | - Chuanbing Tang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
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Pavelková M, Kubová K, Vysloužil J, Kejdušová M, Vetchý D, Celer V, Molinková D, Lobová D, Pechová A, Vysloužil J, Kulich P. Biological Effects of Drug-Free Alginate Beads Cross-Linked by Copper Ions Prepared Using External Ionotropic Gelation. AAPS PharmSciTech 2017; 18:1343-1354. [PMID: 27502404 DOI: 10.1208/s12249-016-0601-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 07/22/2016] [Indexed: 11/30/2022] Open
Abstract
External ionotropic gelation offers a unique possibility to entrap multivalent ions in a polymer structure. The aim of this experimental study was to prepare new drug-free sodium alginate (ALG) particles cross-linked by Cu2+ ions and to investigate their technological parameters (particle size, sphericity, surface topology, swelling capacity, copper content, release of Cu2+ ions, mucoadhesivity) and biological activity (cytotoxicity and efficiency against the most common vaginal pathogens-Herpes simplex, Escherichia coli, Candida albicans) with respect to potential vaginal administration. Beads prepared from NaALG dispersions (3 or 4%) were cross-linked by Cu2+ ions (0.5 or 1.0 M CuCl2) using external ionotropic gelation. Prepared mucoadhesive beads with particle size over 1000 μm exhibited sufficient sphericity (all ˃0.89) and copper content (214.8-249.07 g/kg), which increased with concentration of polymer and hardening solution. Dissolution behaviour was characterized by extended burst effect, followed by 2 h of copper release. The efficiency of all samples against the most common vaginal pathogens was observed at cytotoxic Cu2+ concentrations. Anti-HSV activity was demonstrated at a Cu2+ concentration of 546 mg/L. Antibacterial activity of beads (expressed as minimum inhibition concentration, MIC) was influenced mainly by the rate of Cu2+ release which was controlled by the extent of swelling capacity. Lower MIC values were found for E. coli in comparison with C. albicans. Sample ALG-3_1.0 exhibited the fastest copper release and was proved to be the most effective against both bacteria. This could be a result of its lower polymer concentration in combination with smaller particle size and thus larger surface area.
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Bruchet M, Melman A. Fabrication of patterned calcium cross-linked alginate hydrogel films and coatings through reductive cation exchange. Carbohydr Polym 2015; 131:57-64. [DOI: 10.1016/j.carbpol.2015.05.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Revised: 04/29/2015] [Accepted: 05/05/2015] [Indexed: 10/23/2022]
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12
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Novel therapeutic core-shell hydrogel scaffolds with sequential delivery of cobalt and bone morphogenetic protein-2 for synergistic bone regeneration. Acta Biomater 2015; 23:295-308. [PMID: 26054564 DOI: 10.1016/j.actbio.2015.06.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 05/05/2015] [Accepted: 06/01/2015] [Indexed: 11/21/2022]
Abstract
Enabling early angiogenesis is a crucial issue in the success of bone tissue engineering. Designing scaffolds with therapeutic potential to stimulate angiogenesis as well as osteogenesis is thus considered a promising strategy. Here, we propose a novel scaffold designed to deliver angiogenic and osteogenic factors in a sequential manner to synergize the bone regeneration event. Hydrogel fibrous scaffolds comprised of a collagen-based core and an alginate-based shell were constructed. Bone morphogenetic protein 2 (BMP2) was loaded in the core, while the shell incorporated Co ions, enabled by the alginate crosslinking in CoCl2/CaCl2 solution. The incorporation of Co ions was tunable by altering the concentration of Co ions in the crosslinking solution. The incorporated Co ions, that are known to play a role in angiogenesis, were released rapidly within a week, while the BMP2, acting as an osteogenic factor, was released in a highly sustainable manner over several weeks to months. The release of Co ions significantly up-regulated the in vitro angiogenic properties of cells, including the expression of angiogenic genes (CD31, VEGF, and HIF-1α), secretion of VEGF, and the formation of tubule-like networks. However, BMP2 did not activate the angiogenic processes. Osteogenesis was also significantly enhanced by the release of Co ions as well as BMP2, characterized by higher expression of osteogenic genes (OPN, ALP, BSP, and OCN), and OCN protein secretion. An in vivo study on the designed scaffolds implanted in rat calvarium defect demonstrated significantly enhanced bone formation, evidenced by new bone volume and bone density, due to the release of BMP2 and Co ions. This is the first study using Co ions as an angiogenic element together with the osteogenic factor BMP2 within scaffolds, and the results demonstrated the possible synergistic role of Co ions with BMP2 in the bone regeneration process, suggesting a novel potential therapeutic scaffold system. STATEMENT OF SIGNIFICANCE This is the first report that utilizes Co ion as a pro-angiogenic factor in concert with osteogenic factor BMP-2 in the fine-tuned core-shell hydrogel fiber scaffolds, and ultimately achieves osteo/angiogenesis of MSCs and bone regeneration through the sequential delivery of both biofactors. This novel approach facilitates a new class of therapeutic scaffolds, aiming at successful bone regeneration with the help of angiogenesis.
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Giammanco GE, Sosnofsky CT, Ostrowski AD. Light-responsive iron(III)-polysaccharide coordination hydrogels for controlled delivery. ACS APPLIED MATERIALS & INTERFACES 2015; 7:3068-3076. [PMID: 25591038 DOI: 10.1021/am506772x] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Visible-light responsive gels were prepared from two plant-origin polyuronic acids (PUAs), alginate and pectate, coordinated to Fe(III) ions. Comparative quantitative studies of the photochemistry of these systems revealed unexpected differences in the photoreactivity of the materials, depending on the polysaccharide and its composition. The roles that different functional groups play on the photochemistry of these biomolecules were also examined. Mannuronic-rich alginates were more photoreactive than guluronic acid-rich alginate and than pectate. The microstructure of alginates with different mannuronate-to-guluronate ratios changed with polysaccharide composition. This influenced the gel morphology and the photoreactivity. Coordination hydrogel beads were prepared from both Fe-alginate and Fe-pectate. The beads were stable carriers of molecules as diverse as the dye Congo Red, the vitamin folic acid, and the antibiotic chloramphenicol. The photoreactivity of the hydrogel beads mirrored the photoreactivity of the polysaccharides in solution, where beads prepared with alginate released their cargo faster than beads prepared with pectate. These results indicate important structure-function relationships in these systems and create guidelines for the design of biocompatible polysaccharide-based materials where photoreactivity and controlled release can be tuned on the basis of the type of polysaccharide used and the metal coordination environment.
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Affiliation(s)
- Giuseppe E Giammanco
- Center for Photochemical Sciences and Department of Chemistry, Bowling Green State University , Bowling Green, Ohio 43403, United States
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14
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Onoe H, Takeuchi S. Cell-laden microfibers for bottom-up tissue engineering. Drug Discov Today 2015; 20:236-46. [DOI: 10.1016/j.drudis.2014.10.018] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 10/08/2014] [Accepted: 10/31/2014] [Indexed: 12/13/2022]
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15
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Zander NE, Dong H, Steele J, Grant JT. Metal cation cross-linked nanocellulose hydrogels as tissue engineering substrates. ACS APPLIED MATERIALS & INTERFACES 2014; 6:18502-18510. [PMID: 25295848 DOI: 10.1021/am506007z] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The use of cellulose materials for biomedical applications is attractive due to their low cost, biocompatibility, and biodegradability. Specific processing of cellulose to yield nanofibrils further improves mechanical properties and suitability as a tissue engineering substrate due to the similarity to the fibrous structure, porosity, and size-scale of the native extracellular matrix. In order to generate the substrate, nanocellulose hydrogels were fabricated from carboxylated cellulose nanofibrils via hydrogelation using metal salts. Hydrogels cross-linked with Ca(2+) and Fe(3+) were investigated as tissue culture substrates for C3H10T1/2 fibroblast cells. Control substrates as well as those with physically adsorbed and covalently attached fibronectin protein were evaluated with X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR), and enzyme linked immunosorbent assay (ELISA). Significantly more cells were attached to surfaces modified with protein, with the highest number of cells adhered to the calcium cross-linked hydrogels with covalently attached protein.
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Affiliation(s)
- Nicole E Zander
- United States Army Research Laboratory, Weapons and Materials Research Directorate, Aberdeen Proving Ground, Maryland 21005, United States
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Machida-Sano I, Hirakawa M, Matsumoto H, Kamada M, Ogawa S, Satoh N, Namiki H. Surface characteristics determining the cell compatibility of ionically cross-linked alginate gels. Biomed Mater 2014; 9:025007. [PMID: 24496019 DOI: 10.1088/1748-6041/9/2/025007] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this study we investigated differences in the characteristics determining the suitability of five types of ion (Fe(3+), Al(3+), Ca(2+), Ba(2+) and Sr(2+))-cross-linked alginate films as culture substrates for cells. Human dermal fibroblasts were cultured on each alginate film to examine the cell affinity of the alginates. Since cell behavior on the surface of a material is dependent on the proteins adsorbed to it, we investigated the protein adsorption ability and surface features (wettability, morphology and charge) related to the protein adsorption abilities of alginate films. We observed that ferric, aluminum and barium ion-cross-linked alginate films supported better cell growth and adsorbed higher amounts of serum proteins than other types. Surface wettability analysis demonstrated that ferric and aluminum ion-cross-linked alginates had moderate hydrophilic surfaces, while other types showed highly hydrophilic surfaces. The roughness was exhibited only on barium ion-cross-linked alginate surface. Surface charge measurements revealed that alginate films had negatively charged surfaces, and showed little difference among the five types of gel. These results indicate that the critical factors of ionically cross-linked alginate films determining the protein adsorption ability required for their cell compatibility may be surface wettability and morphology.
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Affiliation(s)
- Ikuko Machida-Sano
- Department of Biology, School of Education, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan
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Santos E, Garate A, Pedraz JL, Orive G, Hernández RM. The synergistic effects of the RGD density and the microenvironment on the behavior of encapsulated cells:In vitroandin vivodirect comparative study. J Biomed Mater Res A 2014; 102:3965-72. [DOI: 10.1002/jbm.a.35073] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 12/12/2013] [Accepted: 12/19/2013] [Indexed: 12/20/2022]
Affiliation(s)
- Edorta Santos
- NanoBioCel Group, Laboratory of Pharmaceutics; University of the Basque Country; School of Pharmacy; Vitoria Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Vitoria Spain
| | - Ane Garate
- NanoBioCel Group, Laboratory of Pharmaceutics; University of the Basque Country; School of Pharmacy; Vitoria Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Vitoria Spain
| | - José Luis Pedraz
- NanoBioCel Group, Laboratory of Pharmaceutics; University of the Basque Country; School of Pharmacy; Vitoria Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Vitoria Spain
| | - Gorka Orive
- NanoBioCel Group, Laboratory of Pharmaceutics; University of the Basque Country; School of Pharmacy; Vitoria Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Vitoria Spain
| | - Rosa María Hernández
- NanoBioCel Group, Laboratory of Pharmaceutics; University of the Basque Country; School of Pharmacy; Vitoria Spain
- Biomedical Research Networking Center in Bioengineering; Biomaterials and Nanomedicine (CIBER-BBN); Vitoria Spain
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18
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Abstract
Carbonic anhydrases (CAs) catalyze a fundamental reaction: the reversible hydration and dehydration of carbon dioxide (CO2) and bicarbonate ([Formula: see text]), respectively. Current methods for CO2 capture and sequestration are harsh, expensive, and require prohibitively large energy inputs, effectively negating the purpose of removing CO2 from the atmosphere. Due to CA's activity on CO2 there is increasing interest in using CAs for industrial applications such as carbon sequestration and biofuel production. A lot of work in the last decade has focused on immobilizing CA onto various supports for incorporation into CO2 scrubbing applications or devices. Although the proof of principle has been validated, current CAs being tested do not withstand the harsh industrial conditions. The advent of large-scale genome sequencing projects has resulted in several emerging efforts seeking out novel CAs from a variety of microorganisms, including bacteria, micro-, and macro-algae. CAs are also being investigated for their use in medical applications, such drug delivery systems and artificial lungs. This review also looks at possible downstream uses of captured and sequestered CO2, from using it to enhance oil recovery to incorporating it into useful and financially viable products.
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Affiliation(s)
- Javier M González
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, USA,
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