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Saha S, Yoshikai T, Liu CY, Matsusaki M, Yang XB, Akashi M. Fabrication of Cell–Hydroxyapatite Nanocrystal Composites Assisted with Layer-by-layer Nanometer-sized Extracellular Matrix Films on Individual Stem Cells. CHEM LETT 2015. [DOI: 10.1246/cl.150854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sushmita Saha
- Biomaterials and Tissue Engineering Group, Department of Oral Biology, School of Dentistry, University of Leeds
| | - Takashi Yoshikai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | - Chun-Yen Liu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | - Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | - Xuebin B. Yang
- Biomaterials and Tissue Engineering Group, Department of Oral Biology, School of Dentistry, University of Leeds
| | - Mitsuru Akashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
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2
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Inoue M, Sasaki M, Katada Y, Fujiu K, Manabe I, Nagai R, Taguchi T. Poly-(L-lactic acid) and citric acid-crosslinked gelatin composite matrices as a drug-eluting stent coating material with endothelialization, antithrombogenic, and drug release properties. J Biomed Mater Res A 2012; 101:2049-57. [PMID: 23280946 DOI: 10.1002/jbm.a.34488] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 09/18/2012] [Accepted: 10/11/2012] [Indexed: 01/17/2023]
Abstract
Biodegradable composite matrices comprising poly-(L-lactic acid) (PLLA) and citric acid-crosslinked alkali-treated gelatin (AlGelatin) with endothelialization, antithrombogenic, and drug release properties were prepared. The characterization of composite matrices with various mixing ratios was performed by evaluating their swelling ratio, endothelial cell culture, antithrombogenic tests, and drug release behavior. Tamibarotene (Am80), which specifically inhibits smooth muscle cell proliferation, was employed as the drug. The swelling ratio of composite matrices decreased as the PLLA content decreased. The number of endothelial cells cultured on the surfaces of composite matrices was maximal at the PLLA/AlGelatin-TSC ratio of 80/20. Antithrombogenic tests revealed that the levels of platelets and fibrin network formation decreased as the AlGelatin-TSC content increased. The Am80 release test indicated that the release rate decreased as PLLA content increased. Using the resulting composite matrix, Am80-eluting stents possessing a smooth surface and a coating thickness of ∼15 μm were successfully obtained. Am80 was continuously released from the resulting stent at ∼40%, up to 28 days without burst release. Therefore, Am80-eluting stent with its antithrombogenic and endothelialization properties has great potential for clinical use.
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Affiliation(s)
- Motoki Inoue
- Biomaterials Unit, Nano-Life Field, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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Inoue M, Sasaki M, Taguchi T. Biodegradable organic acid-crosslinked alkali-treated gelatins with anti-thrombogenic and endothelialization properties. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2012; 13:064215. [PMID: 27877542 PMCID: PMC5099775 DOI: 10.1088/1468-6996/13/6/064215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Accepted: 11/08/2012] [Indexed: 06/06/2023]
Abstract
Gelatins were crosslinked with organic acids and treated with alkali to impart to them endothelialization and anti-thrombogenic properties. These matrices were characterized by biochemical and physicochemical techniques. The amounts of residual amino groups in the matrices decreased with increasing crosslinker concentration. The matrices with the highest crosslinking densities showed excellent endothelial cell adhesion and proliferation. In addition, the adhesion of platelets and formation of fibrin networks on the matrices were suppressed with increasing crosslinker concentration. The matrices also exhibited excellent biodegradability, and the degradation rate decreased with increasing crosslinking density. All the organic acid-crosslinked alkali-treated gelatins showed excellent anti-thrombogenic and endothelialization properties, superior to those of glutaraldehyde-crosslinked alkali-treated gelatins.
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Affiliation(s)
- Motoki Inoue
- Biomaterials Unit, Nano-Life Field, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Makoto Sasaki
- Biomaterials Unit, Nano-Life Field, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Graduate School of Pure and Applied Science, University of Tsukuba, 305-8577, Japan
| | - Tetsushi Taguchi
- Biomaterials Unit, Nano-Life Field, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Graduate School of Pure and Applied Science, University of Tsukuba, 305-8577, Japan
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4
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Inoue M, Takayanagi M, Fujiu K, Manabe I, Nagai R, Taguchi T. Tamibarotene-loaded citric acid-crosslinked alkali-treated collagen matrix as a coating material for a drug-eluting stent. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2012; 13:064208. [PMID: 27877535 PMCID: PMC5099768 DOI: 10.1088/1468-6996/13/6/064208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Accepted: 10/03/2012] [Indexed: 06/06/2023]
Abstract
Tamibarotene-loaded biodegradable matrices with antithrombogenic and drug-releasing properties were prepared in a crosslinking reaction between amino groups of alkali-treated collagen (AlCol) and active ester groups of trisuccinimidyl citrate. The resulting matrices were characterized by their residual amino group concentrations, swelling ratios and thermal, antithrombogenic and drug-releasing properties. It was clarified that the addition of tamibarotene does not inhibit matrix formation. After immersion in water, the swelling ratio of a matrix became lower than that prior to immersion. Thermal analysis indicated that AlCol interacted with tamibarotene. The addition of tamibarotene to the matrix did not influence the antithrombogenic property of the resulting matrix. A matrix with a high crosslinking density had a prolonged tamibarotene elution time. These results demonstrate that tamibarotene-loaded matrices have great potential as a coating material for drug-eluting stents.
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Affiliation(s)
- Motoki Inoue
- Biomaterials Unit, Nano-Life Field, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Mariko Takayanagi
- Biomaterials Unit, Nano-Life Field, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Katsuhito Fujiu
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-8655, Japan
| | - Ichiro Manabe
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-8655, Japan
| | - Ryozo Nagai
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-8655, Japan
| | - Tetsushi Taguchi
- Biomaterials Unit, Nano-Life Field, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Graduate School of Pure and Applied Science, University of Tsukuba, Tsukuba, 305-8577, Japan
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Inoue M, Sasaki M, Nakasu A, Takayanagi M, Taguchi T. An antithrombogenic citric acid-crosslinked gelatin with endothelialization activity. Adv Healthc Mater 2012. [PMID: 23184792 DOI: 10.1002/adhm.201200001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A novel citric acid-crosslinked gelatin matrix with endothelialization activity and anti-adhesive properties for platelets is prepared. The matrix is characterized using an endothelial cell culture and an antithrombogenic activity test. The number of endothelial cells cultured on the surface of the trisuccinimidyl citrate (TSC)-crosslinked gelatin increases as the concentration of TSC increases to 20 mM, and then decreases with further increases in TSC concentration. Compared with glutaraldehyde-crosslinked gelatin, platelet number and fibrin network formation on the TSC-crosslinked gelatin are minimal at high TSC concentration. The biocompatibility of the matrix is evaluated by bioluminescence imaging. This indicates that the inflammation reaction of the TSC-crosslinked gelatin is lower than that of glutaraldehyde-crosslinked gelatin. Physicochemical analysis of TSC-crosslinked gelatin with different TSC concentrations shows that the high concentration of the cell adhesion sequence, arginine-glycine-aspartic acid, contributes to the promotion of endothelial cell adhesion and subsequent endothelial cell growth. Analysis of the carboxyl groups in the TSC-crosslinked gelatin showed that the antithrombogenic activity is due to the increased negative charge derived from the hydrolyzed active ester groups of TSC. These findings show that TSC-crosslinked gelatin has the potential for use in biomedical devices in contact with blood, such as stents, artificial blood vessels, and artificial heart valves.
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Affiliation(s)
- Motoki Inoue
- Biomaterials Unit, Nano-bio field, Materials Nanoarchitectonics (MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
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Matsusaki M, Kadowaki K, Tateishi K, Higuchi C, Ando W, Hart DA, Tanaka Y, Take Y, Akashi M, Yoshikawa H, Nakamura N. Scaffold-Free Tissue-Engineered Construct–Hydroxyapatite Composites Generated by an Alternate Soaking Process: Potential for Repair of Bone Defects. Tissue Eng Part A 2009; 15:55-63. [DOI: 10.1089/ten.tea.2007.0424] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, Japan
- 21st Century COE Program “Center for Integrated Cell and Tissue Regulation,” Graduate School of Engineering, Osaka University, Suita, Osaka, Japan
| | - Koji Kadowaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, Japan
| | - Kosuke Tateishi
- Department of Orthopaedics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Chikahisa Higuchi
- Department of Orthopaedics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Wataru Ando
- Department of Orthopaedics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - David A. Hart
- Faculty of Medicine, McCaig Institute for Bone & Joint Health, University of Calgary, Calgary, Canada
| | - Yoshinari Tanaka
- 21st Century COE Program “Center for Integrated Cell and Tissue Regulation,” Graduate School of Engineering, Osaka University, Suita, Osaka, Japan
- Department of Orthopaedics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yasuhiro Take
- Department of Orthopaedics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Mitsuru Akashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, Japan
- 21st Century COE Program “Center for Integrated Cell and Tissue Regulation,” Graduate School of Engineering, Osaka University, Suita, Osaka, Japan
| | - Hideki Yoshikawa
- 21st Century COE Program “Center for Integrated Cell and Tissue Regulation,” Graduate School of Engineering, Osaka University, Suita, Osaka, Japan
- Department of Orthopaedics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Norimasa Nakamura
- 21st Century COE Program “Center for Integrated Cell and Tissue Regulation,” Graduate School of Engineering, Osaka University, Suita, Osaka, Japan
- Department of Orthopaedics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
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Arimura SI, Kawahara KI, Biswas KK, Abeyama K, Tabata M, Shimoda T, Ogomi D, Matsusaki M, Kato S, Ito T, Sugihara K, Akashi M, Hashiguchi T, Maruyama I. Hydroxyapatite formed on/in agarose gel induces activation of blood coagulation and platelets aggregation. J Biomed Mater Res B Appl Biomater 2007; 81:456-61. [PMID: 17022065 DOI: 10.1002/jbm.b.30684] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We reported earlier that hydroxyapatite (HA) formed on/in agarose gels (HA/agarose) produced by alternate soaking process is a bone-filling material possessing osteoconductive and hemostatic effects. This process could allow us to make bone-like apatite that was formed on/in organic polymer hydrogel matrices. Here, we investigated the mechanism of hemostasis induced by HA/agarose and found that HA/agarose, but not agarose or HA powder, significantly shortened activated partial thromboplastin time (APTT). While HA/agarose did not show significant platelet aggregation, it markedly enhanced adenosine diphosphate (ADP)-induced platelet aggregation. Moreover, Western blot analysis revealed selective adsorption of vitronectin onto HA/agarose. We also observed marked differences between HA powder and HA/agarose in their XRD patterns. The crystallinity of HA powder was much higher compared to that of HA/agarose. Furthermore, 50-100 nm of tube-form aggregations was observed in HA powder on the other hand 100-200 nm of particles was observed in HA/agarose by SEM observation. Thus 100-200 nm of low crystallized particles on the surface structure of HA/agarose may play an important role in hemostasis. Our results demonstrated a crucial role of HA/agarose in the mechanism of hemostasis and suggested a potential role for HA/agarose as a bone-grafting material.
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Affiliation(s)
- Shin-ichiro Arimura
- Developmental Therapeutics Course, Oral and Maxillofacial Rehabilitation, Department of Maxillofacial Diagnostic and Surgical Science, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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