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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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Guo B, Cheng Y, Li N, Li X, Jin M, Li T, Li J. In vitro and in vivo studies of galactose-modified liver-targeting liposomes. J Drug Target 2012; 21:257-264. [PMID: 23163746 DOI: 10.3109/1061186x.2012.741135] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Oridonin (ORI) is a bioactive diterpenoid compound extracted from the well known Chinese traditional medicine Rabdosia rubescens. The aim of this study was to prepare ORI loaded liposomes surface-modified with galactose (NOH-ORI-LP) and evaluate their characteristics compared with ORI loaded liposomes (ORI-LP) and ORI solution in vitro and in vivo. The NOH-ORI-LP was prepared by ethanol injection method. The NOH-ORI-LP was characterized by their morphology, particle size, zeta potential and encapsulation efficiency. The concentration of ORI in plasma and tissues at different sampling time points were determined. The liver concentration-time curves of NOH-ORI-LP in mice were determined, and the pharmacokinetic parameters were calculated and compared by statistical analysis. Our data revealed that NOH-ORI-LP has a particle size of about (173 ± 12) nm. The particles exhibit a negative electrical charge (-31.5 ± 1.6 mV), and possess high encapsulation efficiency (94.1 ± 1.2%). There were significantly different parameters of k10 and area under the plasma concentration-time curve (AUC0-t) between liposomes and solution. The mean residence time (MRT0-t) in plasma of NOH-ORI-LP was 5.56 times longer than that of solution. Compared with solution, NOH-ORI-LP delivered about 4.28 times higher ORI into liver. Thus, an optimum intravenous galactose-modified liposome formulation for ORI could be developed as an alternative to the commercial ORI preparations.
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Affiliation(s)
- Bohong Guo
- a Department of pharmacy, Guangdong Pharmaceutical University , Guangdong, Guangzhou, PR China
| | - Yi Cheng
- b School of Chinese Materia Medica, Guangzhou University of Chinese Medicine , Guangdong, Guangzhou, PR China
| | - Niying Li
- a Department of pharmacy, Guangdong Pharmaceutical University , Guangdong, Guangzhou, PR China
| | - Xiaofang Li
- a Department of pharmacy, Guangdong Pharmaceutical University , Guangdong, Guangzhou, PR China
| | - Miaozhen Jin
- a Department of pharmacy, Guangdong Pharmaceutical University , Guangdong, Guangzhou, PR China
| | - Ting Li
- a Department of pharmacy, Guangdong Pharmaceutical University , Guangdong, Guangzhou, PR China
| | - Jin Li
- a Department of pharmacy, Guangdong Pharmaceutical University , Guangdong, Guangzhou, PR China
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Kaneko T, Shimomai S, Miyazaki M, Baba M, Akashi M. IgG responses to intranasal immunization with cholera-toxin-immobilized polymeric nanospheres in mice. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 15:661-9. [PMID: 15264666 DOI: 10.1163/156856204323046915] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
IgG responses to antigen-nanosphere hybrids were studied in mice. Cholera toxin (CT) was covalently immobilized onto the surface of polymeric nanospheres (NS) with a nanophase-separated structure consisting of a polystyrene core and a poly(methacrylic acid) graft corona. Reaction conditions favoring the dehydroxide condensation reaction of the amino group of the CT with the carboxyl group of NS effectively immobilized CT onto their surface. When CT-immobilized nanospheres (CT-NS) were suspended in aqueous solution and administrated to mice either intranasally or intramuscularly, serum IgG titers elevated with increasing time and reached a maximum level at 8 weeks after immunization. On the other hand, intranasal administration of CT alone induced an even higher serum IgG titer than that of CT-NS at 4 weeks. However, the titer gradually decreased thereafter. Thus, polymeric NS may be an effective substrate to covalently immobilize antigen on their surface, steadily inducing a high level of IgG production in response to the intranasal administration.
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Affiliation(s)
- Tatsuo Kaneko
- Department of Nanostructured and Advanced Materials, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
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Guo BH, Cheng Y, Lin LP, Lin DH, Wu W. Preparation and characterization of galactose-modified liposomes by a nonaqueous enzymatic reaction. J Liposome Res 2011; 21:255-60. [PMID: 21545336 DOI: 10.3109/08982104.2011.573795] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In this study, NOH (NOH = N-octadecyl-4-[(D-galactopyranosyl)oxy]-2,3,5,6-tetrahydroxy hexanamide) was enzymatically synthesized as a targeting molecule and incorporated into liposomes to prepare a liposome surface modified with galactose. Glycyrrhetinic-acid-loaded liposome (GA-LP) and glycyrrhetinic-acid-loaded liposome surface modified with galactose (NOH-GA-LP) were prepared by the ethanol-injection method. NOH-GA-LP was characterized by morphology, particle size, zeta potential, encapsulation efficiency, release in vitro, and stability. The size of spherical particles was in the range of 179-211 nm. Spherical particles exhibit a positive electrical charge (38.7 mV) and possess high encapsulation efficiency (91.3%) and show sustained release (72% over 48 hours) in vitro. This novel approach for the liposome surface modified with galactose by enzymatic synthesis is expected to provide potential application as a drug carrier for active targeted delivery to hepatocytes.
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Affiliation(s)
- Bo-hong Guo
- Department of Chinese Herbal Medicine, Guangdong, Guangzhou University of Chinese Medicine, Guangzhou, China
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Esaki K, Yokota S, Egusa S, Okutani Y, Ogawa Y, Kitaoka T, Goto M, Wariishi H. Preparation of Lactose-Modified Cellulose Films by a Nonaqueous Enzymatic Reaction and their Biofunctional Characteristics as a Scaffold for Cell Culture. Biomacromolecules 2009; 10:1265-9. [DOI: 10.1021/bm900089j] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kei Esaki
- Department of Forest and Forest Products Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, and Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shingo Yokota
- Department of Forest and Forest Products Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, and Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shizuka Egusa
- Department of Forest and Forest Products Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, and Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yuri Okutani
- Department of Forest and Forest Products Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, and Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yukiko Ogawa
- Department of Forest and Forest Products Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, and Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takuya Kitaoka
- Department of Forest and Forest Products Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, and Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Masahiro Goto
- Department of Forest and Forest Products Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, and Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hiroyuki Wariishi
- Department of Forest and Forest Products Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, and Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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Cade D, Ramus E, Rinaudo M, Auzély-Velty R, Delair T, Hamaide T. Tailoring of bioresorbable polymers for elaboration of sugar-functionalized nanoparticles. Biomacromolecules 2005; 5:922-7. [PMID: 15132682 DOI: 10.1021/bm034504b] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Maleic copolymers with different contents of galactose moieties and dodecyl chains were synthesized and used as both a stabilizer and a surface coating for the preparation of poly(epsilon-caprolactone) nanoparticles by the emulsification-diffusion technique. The size of the nanoparticles was controlled by varying the initial concentration of the modified maleic copolymers. As the concentration of the latter increased, the particle size decreased, indicating that the copolymers serve as a stabilizer. Moreover, surface modification of nanoparticles was confirmed by xi-potential measurements. Nanoparticles were also shown to be recognized by a galactose-specific lectin, demonstrating the presence of galactose units on the particle surface. This approach offers opportunities for the production of novel targeted drug delivery systems.
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Affiliation(s)
- David Cade
- Centre de Recherches sur les Macromolécules Végétales, BP53, 38041 Grenoble Cedex 9, France
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Ouchi T, Yamabe E, Hara K, Hirai M, Ohya Y. Design of attachment type of drug delivery system by complex formation of avidin with biotinyl drug model and biotinyl saccharide. J Control Release 2004; 94:281-91. [PMID: 14744480 DOI: 10.1016/j.jconrel.2003.09.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Recent studies have focused on the active targeting of drug delivery by combining a homing device and antitumor drug. For this purpose, synthesis of a well-designed vehicle (such as polymer/drug conjugates or nanoparticles) carrying a drug and a homing device requires many steps. We propose a new type of drug delivery system (DDS) by formation of a complex containing avidin (Av) plus biotinyl drug with a biotinyl homing device, which easily accommodates the combination of various drugs and homing devices. The targetable drug complex can be prepared by selecting an appropriate biotinyl drug derivative and a biotinyl homing device and mixing them with avidin. Fluorescent dye with 5-(and-6)-carboxytetramethylrhodamine (TAMRA) was used as a drug model, and galactose (Gal) recognized by liver parenchymal cells was used as a homing device. TAMRA and galactose were attached to biotin (Bio) through a triethyleneglycol (TEG) spacer group to give Bio-TEG-TAMRA conjugate and Bio-TEG-Gal conjugate, respectively. Confocal laser scanning microscopic studies suggest that the complexes prepared by mixing Bio-TEG-Gal conjugate and fluorescein isothiocyanate (FITC)-labeled Av (feed molar ratio 4:1), and mixing Bio-TEG-Gal conjugate, Bio-TEG-TAMRA conjugate and FITC-labeled Av are internalized into the hepatoma cells through a receptor-mediated endocytosis mechanism.
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Affiliation(s)
- Tatsuro Ouchi
- Department of Applied Chemistry, Faculty of Engineering, Kansai University, Suita Osaka 564-8680, Japan.
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