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Tsuchiya K, Hamai R, Sakai S, Suzuki O. Comparative analysis of bovine serum albumin adsorption onto octacalcium phosphate crystals prepared using different methods. Dent Mater J 2020; 39:883-891. [PMID: 32448850 DOI: 10.4012/dmj.2019-250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study compared bovine serum albumin (BSA) adsorption onto octacalcium phosphate (OCP) materials prepared from two wet preparations in the absence (w-OCP) and presence (c-OCP) of gelatin. Raman spectroscopy was used to analyze the BSA adsorption onto OCPs in a 150 mM Tris-HCl buffer containing 0.5 mM calcium and inorganic phosphate (Pi) ions at pH 7.4 and at 37°C. The degree of supersaturation of the supernatants after the adsorption was determined by measuring the ion composition. The results showed that BSA adsorption onto w-OCP was higher than that for c-OCP. The calcium ion concentration of the supernatant decreased for both w-OCP and c-OCP, whereas the Pi ion concentration increased, approaching OCP equilibria at different saturation levels. BSA adsorbed even onto c-OCP, which included a small amount of gelatin during c-OCP preparation. These results indicate that the biodegradability of w-OCP and c-OCP may be modulated through interactions with serum proteins.
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Affiliation(s)
- Kaori Tsuchiya
- Division of Craniofacial Function Engineering, Tohoku University Graduate School of Dentistry
| | - Ryo Hamai
- Division of Craniofacial Function Engineering, Tohoku University Graduate School of Dentistry
| | - Susumu Sakai
- Division of Craniofacial Function Engineering, Tohoku University Graduate School of Dentistry
| | - Osamu Suzuki
- Division of Craniofacial Function Engineering, Tohoku University Graduate School of Dentistry
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Lopez-Heredia MA, Pattipeilohy J, Hsu S, Grykien M, van der Weijden B, Leeuwenburgh SCG, Salmon P, Wolke JGC, Jansen JA. Bulk physicochemical, interconnectivity, and mechanical properties of calcium phosphate cements-fibrin glue composites for bone substitute applications. J Biomed Mater Res A 2012; 101:478-90. [DOI: 10.1002/jbm.a.34342] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 05/22/2012] [Accepted: 06/28/2012] [Indexed: 12/25/2022]
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Hafez IT, Paraskeva CA, Klepetsanis PG, Koutsoukos PG. Sand consolidation with calcium phosphate–polyelectrolyte composites. J Colloid Interface Sci 2011; 363:145-56. [DOI: 10.1016/j.jcis.2011.07.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2011] [Revised: 07/09/2011] [Accepted: 07/18/2011] [Indexed: 10/17/2022]
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Wu CY, Martel J, Young D, Young JD. Fetuin-A/albumin-mineral complexes resembling serum calcium granules and putative nanobacteria: demonstration of a dual inhibition-seeding concept. PLoS One 2009; 4:e8058. [PMID: 19956594 PMCID: PMC2779105 DOI: 10.1371/journal.pone.0008058] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2009] [Accepted: 11/04/2009] [Indexed: 12/02/2022] Open
Abstract
Serum-derived granulations and purported nanobacteria (NB) are pleomorphic apatite structures shown to resemble calcium granules widely distributed in nature. They appear to be assembled through a dual inhibitory-seeding mechanism involving proteinaceous factors, as determined by protease (trypsin and chymotrypsin) and heat inactivation studies. When inoculated into cell culture medium, the purified proteins fetuin-A and albumin fail to induce mineralization, but they will readily combine with exogenously added calcium and phosphate, even in submillimolar amounts, to form complexes that will undergo morphological transitions from nanoparticles to spindles, films, and aggregates. As a mineralization inhibitor, fetuin-A is much more potent than albumin, and it will only seed particles at higher mineral-to-protein concentrations. Both proteins display a bell-shaped, dose-dependent relationship, indicative of the same dual inhibitory-seeding mechanism seen with whole serum. As ascertained by both seeding experiments and gel electrophoresis, fetuin-A is not only more dominant but it appears to compete avidly for nanoparticle binding at the expense of albumin. The nanoparticles formed in the presence of fetuin-A are smaller than their albumin counterparts, and they have a greater tendency to display a multi-layered ring morphology. In comparison, the particles seeded by albumin appear mostly incomplete, with single walls. Chemically, spectroscopically, and morphologically, the protein-mineral particles resemble closely serum granules and NB. These particles are thus seen to undergo an amorphous to crystalline transformation, the kinetics and completeness of which depend on the protein-to-mineral ratios, with low ratios favoring faster conversion to crystals. Our results point to a dual inhibitory-seeding, de-repression model for the assembly of particles in supersaturated solutions like serum. The presence of proteins and other inhibitory factors tend to block apatite nuclei formation or to stabilize the nascent nuclei as amorphous or semi-crystalline spherical nanoparticles, until the same inhibitory influences are overwhelmed or de-repressed, whereby the apatite nuclei grow in size to coalesce into crystalline spindles and films-a mechanism that may explain not only the formation of calcium granules in nature but also normal or ectopic calcification in the body.
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Affiliation(s)
- Cheng-Yeu Wu
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China
- Research Center of Bacterial Pathogenesis, Chang Gung University, Gueishan, Taiwan, Republic of China
| | - Jan Martel
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China
- Department of Biochemistry and Molecular Biology, Graduate Institute of Biomedical Sciences, Chang Gung University, Gueishan, Taiwan, Republic of China
| | - David Young
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - John D. Young
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China
- Laboratory of Cellular Physiology and Immunology, The Rockefeller University, New York, New York, United States of America
- Biochemical Engineering Research Center, Mingchi University of Technology, Taipei, Taiwan, Republic of China
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Yang C, Cheng K, Weng W, Yang C. OTS-modified HA and its toughening effect on PLLA/HA porous composite. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:667-672. [PMID: 18941869 DOI: 10.1007/s10856-008-3604-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2008] [Accepted: 09/23/2008] [Indexed: 05/26/2023]
Abstract
In this paper, hydroxyapatite (HA) particles was modified with long-chain organic silane-Octadecyltrichlorosilane (OTS), and the modified particles were further used for preparing Poly(L-lactic acid) PLLA/HA porous composite. The modified particles were characterized by means of XRD, FTIR, and XPS techniques. Both XPS and FTIR results showed that OTS had been combined with HA, and the formation of P-O-Si bond, a covalent bond, on the HA particle surface was confirmed by XPS. OTS-modified HA particles were used to prepare porous composites by thermally induced phase separation method. The results showed that the composite had an interconnected pore structure with 100-300 mum macropores. With OTS dosage increasing during modification, the mechanical properties of PLLA/OTS-modified HA porous composites increased obviously. These results showed that OTS modification can effectively improve the interface compatibility between HA surface and PLLA.
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Affiliation(s)
- Chunli Yang
- Department of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, People's Republic of China.
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Meldrum FC, Cölfen H. Controlling mineral morphologies and structures in biological and synthetic systems. Chem Rev 2009; 108:4332-432. [PMID: 19006397 DOI: 10.1021/cr8002856] [Citation(s) in RCA: 756] [Impact Index Per Article: 50.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Fiona C Meldrum
- School of Chemistry, Cantock's Close, University of Bristol, Bristol BS8 1TS, United Kingdom.
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Benesch J, Mano JF, Reis RL. Proteins and Their Peptide Motifs in Acellular Apatite Mineralization of Scaffolds for Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2008; 14:433-45. [DOI: 10.1089/ten.teb.2008.0121] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Johan Benesch
- 3B's Research Group—Biomaterials, Biodegradables, and Biomimetics, Department of Polymer Engineering, University of Minho, Caldas das Taipas, Portugal
- IBB—Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Braga, Portugal
| | - João F. Mano
- 3B's Research Group—Biomaterials, Biodegradables, and Biomimetics, Department of Polymer Engineering, University of Minho, Caldas das Taipas, Portugal
- IBB—Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Braga, Portugal
| | - Rui L. Reis
- 3B's Research Group—Biomaterials, Biodegradables, and Biomimetics, Department of Polymer Engineering, University of Minho, Caldas das Taipas, Portugal
- IBB—Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Braga, Portugal
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Juhasz JA, Best SM, Auffret AD, Bonfield W. Biological control of apatite growth in simulated body fluid and human blood serum. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2008; 19:1823-1829. [PMID: 18157508 DOI: 10.1007/s10856-007-3344-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2005] [Accepted: 12/03/2007] [Indexed: 05/25/2023]
Abstract
The surface transformation reactions of bioactive ceramics were studied in vitro in standard K9-SBF solution and in human blood serum (HBS)-containing simulated body fluid (SBF). The calcium phosphate ceramics used for this study were stoichiometric hydroxyapatite (HA), beta-tricalcium phosphate (beta-TCP) and brushite. Immersion of each calcium phosphate tested in this study, in simulated body fluid, led to immediate surface precipitation of apatite. The use of HBS resulted in a delay in the onset of precipitation and a significant inhibition of the dissolution reaction normally observed for brushite in solution. However, apatite formation still occurred. The use of HBS and SBF in this investigation, which has shown the ability to induce similar crystal growth as that observed in vivo, suggests that there is scope for the use of serum proteins in simulated body fluid in order to create a protein-rich surface coating on biomedical substrates.
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Affiliation(s)
- Judith A Juhasz
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK.
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Tsortos A, Nancollas GH. The role of polycarboxylic acids in calcium phosphate mineralization. J Colloid Interface Sci 2007; 250:159-67. [PMID: 16290647 DOI: 10.1006/jcis.2002.8323] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2001] [Accepted: 02/27/2002] [Indexed: 11/22/2022]
Abstract
The role of two polyelectrolytes, poly-L-glutamate and poly-L-aspartate, in the growth of calcium phosphate crystal phases, has been investigated at constant supersaturation. Both molecules are strong inhibitors of HAP growth when present in the solution phase but also act as hydroxyapatite and (octacalcium phosphate)-like crystal nucleators when adsorbed on germanium surfaces. The structure of the polymers in solution is presented and various adsorption models are analyzed. A "train-loop" structure of these long, flexible chain polymers on the crystal surface is consistent with all the adsorption (experimental and theoretical), inhibition, and electrophoretic mobility results.
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Affiliation(s)
- Achilles Tsortos
- Department of Chemistry, State University of New York at Buffalo, Buffalo, New York, 14260, USA
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Abstract
It is known that the organic molecules can provide effective means to tailor the surface properties of the biodegradable ceramic. In this paper, a long-chain organic silane- Octadecyltrichlorosilane(OTS) was used as coupling agent and hydroxyapatite(HA) was the candidate ceramic. Samples were characterized by means of XPS technique. XPS results indicated that Si-O-P bond was formed on the HA surface after surface-modification, which means OTS was grafted onto the HA surface through covalent bond , XPS results also showed that by regulating the surface-modification process Si(Atomic percentage) content on HA surface could be changed from 0 to 2.88%.
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Rosengren A, Oscarsson S, Mazzocchi M, Krajewski A, Ravaglioli A. Protein adsorption onto two bioactive glass-ceramics. Biomaterials 2003; 24:147-55. [PMID: 12417188 DOI: 10.1016/s0142-9612(02)00272-7] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Recent research suggests that the biocompatibility of an implant is to a large extent determined by selective adsorption of proteins from surrounding body fluids. Protein adsorption from human plasma onto two bioactive glass-ceramics (RKKP and AP40) which differ in La and Ta content, was studied by means of chromatography and two-dimensional polyacrylamide gel electrophoresis (2D-PAGE). The quantitative analysis showed that the glass-ceramics have good protein binding capacities indicating multilayer formation. A correlation between chemical composition and the amount of adsorbed proteins was observed. The presence of La and Ta decreased the protein adsorption, so AP40 bound significantly more protein per surface unit then did RKKP. Preferential adsorption of apolipoprotein J, fibrinogen and fibronectin was observed.
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Affiliation(s)
- A Rosengren
- Center for Surface Biotechnology, Uppsala University, Box 577, 75123, Uppsala, Sweden.
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Application of the turbidity measurements to study in situ crystallization of calcium phosphates. Colloids Surf A Physicochem Eng Asp 2002. [DOI: 10.1016/s0927-7757(01)01108-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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