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Ogata M. Chemoenzymatic Synthesis and Function of Chitin Derivatives. Curr Pharm Des 2020; 26:3522-3529. [DOI: 10.2174/1381612826666200515132623] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 04/15/2020] [Indexed: 11/22/2022]
Abstract
Chitin, abundant biomass found in crab shells and other marine life, has wide applications in the production of food, pharmaceuticals, and cosmetics. Our recent studies have focused on the development of new functional materials by derivatizing chitin oligosaccharides and monosaccharides. For example, we have prepared various derivatives by chemoenzymatic synthesis using N-acetylglucosamine (GlcNAc) or chitin oligosaccharide prepared from chitin as starting materials. First, we have achieved the total synthesis of two secondary metabolites (furanodictine A and B) with neuronal differentiation-inducing activity on PC12 cells by using a simple heatinduced structural transformation of GlcNAc and esterification reaction. Second, we synthesized both a novel inhibitor that has facilitated a re-examination of the reaction mechanism of hen egg-white lysozyme, and a new substrate for assaying lysozyme activity by using chitin oligosaccharides as raw materials. Thus, the development of new materials by simple derivatization of chitin mono- or oligo-saccharides is paving the way for effective use of chitin.
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Affiliation(s)
- Makoto Ogata
- Department of Applied Chemistry and Biochemistry, National Institute of Technology, Fukushima College, 30 Nagao, Iwaki, Fukushima 970-8034, Japan
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Hatakeyama M, Nakada F, Ichinose H, Kitaoka T. Direct stimulation of cellular immune response via TLR2 signaling triggered by contact with hybrid glyco-biointerfaces composed of chitohexaose and cellohexaose. Colloids Surf B Biointerfaces 2019; 175:517-522. [PMID: 30576996 DOI: 10.1016/j.colsurfb.2018.12.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/12/2018] [Accepted: 12/13/2018] [Indexed: 12/27/2022]
Abstract
Recognition of carbohydrates by cell receptors activates various cell signaling processes. In this report, hybrid self-assembled monolayers (SAMs) of chitohexaose (βGlcNAc6) and cellohexaose (βGlc6) are prepared to induce a highly sensitive, glyco-density-dependent inflammatory response by HEK293 cells expressing toll-like receptor 2 (TLR2), which recognizes oligo-βGlcNAc moieties. Thiosemicarbazide-labeled βGlcNAc6 and βGlc6, as a bio-signal inducer and a spacer molecule, respectively, were immobilized on a gold substrate via spontaneous chemisorption to control the βGlcNAc6 density on the SAM surface. The βGlcNAc6 density ranged from 0 to 0.65 chains nm-2. The inflammatory response of HEK293 cells varied as a function of the surface glyco-density, and the hybrid SAM with 0.146 chains nm-2 of βGlcNAc6 induced a stronger response than pure βGlcNAc6-SAM with 0.654 chains nm-2. Thus, direct activation of TLR2-mediated cellular stimulation triggered by as-designed glyco-biointerfaces was possible through a mutual interaction between the fittingly βGlcNAc6 moieties assembled on hybrid glyco-SAMs and TLR2 on the surface of HEK293 cells.
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Affiliation(s)
- Mayumi Hatakeyama
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Japan
| | - Fumi Nakada
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Japan
| | - Hirofumi Ichinose
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Japan
| | - Takuya Kitaoka
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Japan.
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Li K, Xing R, Liu S, Li P. Advances in preparation, analysis and biological activities of single chitooligosaccharides. Carbohydr Polym 2016; 139:178-90. [DOI: 10.1016/j.carbpol.2015.12.016] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 12/07/2015] [Indexed: 02/07/2023]
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Chitooligomer-Immobilized Biointerfaces with Micropatterned Geometries for Unidirectional Alignment of Myoblast Cells. Biomolecules 2016; 6:12. [PMID: 26784249 PMCID: PMC4808806 DOI: 10.3390/biom6010012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 01/08/2016] [Accepted: 01/12/2016] [Indexed: 11/16/2022] Open
Abstract
Skeletal muscle possesses a robust capacity to regenerate functional architectures with a unidirectional orientation. In this study, we successfully arranged skeletal myoblast (C2C12) cells along micropatterned gold strips on which chitohexaose was deposited via a vectorial chain immobilization approach. Hexa-N-acetyl-d-glucosamine (GlcNAc6) was site-selectively modified at its reducing end with thiosemicarbazide, then immobilized on a gold substrate in striped micropatterns via S–Au chemisorption. Gold micropatterns ranged from 100 to 1000 µm in width. Effects of patterning geometries on C2C12 cell alignment, morphology, and gene expression were investigated. Unidirectional alignment of C2C12 cells having GlcNAc6 receptors was clearly observed along the micropatterns. Decreasing striped pattern width increased cell attachment and proliferation, suggesting that the fixed GlcNAc6 and micropatterns impacted cell function. Possibly, interactions between nonreducing end groups of fixed GlcNAc6 and cell surface receptors initiated cellular alignment. Our technique for mimicking native tissue organization should advance applications in tissue engineering.
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Teramoto Y. Material Functionalization and Its Expanding Bioscientific Perspective for Structural Polysaccharides via Nanoscopic Multicomposition, Orientation Control, and Processing Development. TRENDS GLYCOSCI GLYC 2015. [DOI: 10.4052/tigg.1424.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Yoshikuni Teramoto
- Course of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University
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Yang Y, Wang S, Wang Y, Wang X, Wang Q, Chen M. Advances in self-assembled chitosan nanomaterials for drug delivery. Biotechnol Adv 2014; 32:1301-1316. [PMID: 25109677 DOI: 10.1016/j.biotechadv.2014.07.007] [Citation(s) in RCA: 188] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 06/24/2014] [Accepted: 07/30/2014] [Indexed: 02/06/2023]
Abstract
Nanomaterials based on chitosan have emerged as promising carriers of therapeutic agents for drug delivery due to good biocompatibility, biodegradability, and low toxicity. Chitosan originated nanocarriers have been prepared by mini-emulsion, chemical or ionic gelation, coacervation/precipitation, and spray-drying methods. As alternatives to these traditional fabrication methods, self-assembled chitosan nanomaterials show significant advantages and have received growing scientific attention in recent years. Self-assembly is a spontaneous process by which organized structures with particular functions and properties could be obtained without additional complicated processing or modification steps. In this review, we focus on recent progress in the design, fabrication and physicochemical aspects of chitosan-based self-assembled nanomaterials. Their applications in drug delivery of different therapeutic agents are also discussed in details.
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Affiliation(s)
- Yu Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Shengpeng Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Xiaohui Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Qun Wang
- Department of Chemical and Biological Engineering, Iowa State University, Ames, IA 50011, USA; Department of Civil, Construction and Environmental Engineering, Iowa State University, Ames, IA 50011, USA.
| | - Meiwan Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China.
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Kitaoka T, Yoshiyama C, Uemura F. Hybrid immobilization of galactosyl lactose and cellobiose on a gold substrate to modulate biological responses. Carbohydr Polym 2013; 92:374-9. [PMID: 23218308 DOI: 10.1016/j.carbpol.2012.09.088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 09/27/2012] [Accepted: 09/28/2012] [Indexed: 01/12/2023]
Abstract
Bioactive O-β-d-galactopyranosyl-(1→4)-O-β-d-galactopyranosyl-(1→4)-d-glucopyranose (4'-galactosyl lactose) was site-selectively modified at a reducing end with thiosemicarbazide (TSC). As-synthesized 4'-galactosyl lactose-TSC was immobilized on a gold substrate with cellobiose-TSC as a spacer through spontaneous self-assembly chemisorption via SAu bonding. Quartz crystal microbalance analysis suggested the successful formation of self-assembled monolayers (SAMs) of 4'-galactosyl lactose-TSC and/or cellobiose-TSC. Galactose-binding lectin exhibited the highest affinity for hybrid SAMs with an equimolar ratio of the two oligosaccharide-TSCs, while glucose-binding lectin showed decreasing adsorption with a decrease in cellobiose-TSC ratios. Human hepatocellular carcinoma cells, which recognize galactose residues, efficiently adhered to the hybrid SAMs. Higher enzymatic deethoxylation of ethoxyresorufin via cytochrome P450 appeared on hybrid SAMs. These results suggested that clustering of the bioactive sugars was involved in the cellular responses, possibly via biological carbohydrate-protein interactions. This approach to designing carbohydrate-based scaffolds should provide a basis for the functional development of glyco-decorated biointerfaces for cell culture applications.
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Affiliation(s)
- Takuya Kitaoka
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, and Biotron Application Center, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
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Speight RE, Cooper MA. A Survey of the 2010 Quartz Crystal Microbalance Literature. J Mol Recognit 2012; 25:451-73. [DOI: 10.1002/jmr.2209] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Robert E. Speight
- Institute for Molecular Bioscience; The University of Queensland; St. Lucia; Brisbane; 4072; Australia
| | - Matthew A. Cooper
- Institute for Molecular Bioscience; The University of Queensland; St. Lucia; Brisbane; 4072; Australia
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Hattori T, Sakabe Y, Ogata M, Michishita K, Dohra H, Kawagishi H, Totani K, Nikaido M, Nakamura T, Koshino H, Usui T. Enzymatic synthesis of an α-chitin-like substance via lysozyme-mediated transglycosylation. Carbohydr Res 2011; 347:16-22. [PMID: 22137737 DOI: 10.1016/j.carres.2011.09.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2011] [Revised: 09/20/2011] [Accepted: 09/22/2011] [Indexed: 10/17/2022]
Abstract
The enzymatic synthesis of an α-chitin-like substance via a non-biosynthetic pathway has been achieved by transglycosylation in an aqueous system of the corresponding substrate, tri-N-acetylchitotriose [(GlcNAc)(3)] for lysozyme. A significant amount of water-insoluble product precipitated out from the reaction system. MALDI-TOFMS analysis showed that the resulting precipitate had a degree of polymerization (DP) of up to 15 from (GlcNAc)(3). Solid-state (13)C NMR analysis revealed that the resulting water-insoluble product is a chitin-like substance consisting of N-acetylglucosamine (GlcNAc) residues joined exclusively in a β-(1→4)-linked chain with stringent regio-/stereoselection. X-ray diffraction (XRD) measurement as well as (13)C NMR analysis showed that the crystal structure of synthetic product corresponds to α-chitin with a high degree of crystallinity. We propose that the multiple oligomers form an α-chitin-like substance as a result of self-assembly via oligomer-oligomer interaction when they precipitate.
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Affiliation(s)
- Takeshi Hattori
- Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, Ohya 836, Suruga Ward, Shizuoka 422-8529, Japan
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Synthesis and bio-applications of carbohydrate–gold nanoconjugates with nanoparticle and nanolayer forms. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2010.10.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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