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Zhang L, Yang J, Ding C, Sun S, Zhang S, Ding Q, Zhao T, Liu W. Application of polysaccharide-based crosslinking agents based on schiff base linkages for biomedical scaffolds. Carbohydr Polym 2024; 345:122585. [PMID: 39227125 DOI: 10.1016/j.carbpol.2024.122585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 08/04/2024] [Accepted: 08/06/2024] [Indexed: 09/05/2024]
Abstract
Chemical crosslinking is a method widely used to enhance the mechanical strength of biopolymer-based scaffolds. Polysaccharides are natural and biodegradable carbohydrate polymers that can act as crosslinking agents to promote the formation of scaffolds. Compared to synthetic crosslinking agents, Polysaccharide-based crosslinking agents have better biocompatibility for cell adhesion and growth. Traditional Chinese medicine has special therapeutic effects on various diseases and is rich in various bioactive ingredients. Among them, polysaccharides have immune regulatory, antioxidant, and anti-inflammation effects, which allow them to not only act as crosslinking agents but endow the scaffold with greater bioactivity. This article focuses on the latest developments of polysaccharide-based crosslinking agents for biomedical scaffolds, including hyaluronic acid, chondroitin sulfate, dextran, alginate, cellulose, gum polysaccharides, and traditional Chinese medicine polysaccharides. Also, we provide a summary and prospects on the research of polysaccharide-based crosslinking agents.
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Affiliation(s)
- Lifeng Zhang
- College of traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Jiali Yang
- College of traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Chuanbo Ding
- College of traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Shuwen Sun
- College of traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Shuai Zhang
- College of traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Qiteng Ding
- College of traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Ting Zhao
- College of traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China.
| | - Wencong Liu
- School of Food and Pharmaceutical Engineering, Wuzhou University, Wuzhou 543002, China.
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2
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Qu H, Smith WC, Feng X, Wang J, Pinto J, Xu X, Faustino PJ. Asymmetrical Flow Field Flow Fractionation for Molar Mass Characterization of Polyethylene Oxide in Abuse-Deterrent Formulations. J Chromatogr A 2023; 1705:464186. [PMID: 37453175 DOI: 10.1016/j.chroma.2023.464186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/16/2023] [Accepted: 06/28/2023] [Indexed: 07/18/2023]
Abstract
High molar mass polyethylene oxide (HM-PEO) is commonly used to enhance the mechanical strength of solid oral opioid drug products to deter abuse. Because the properties of PEO depend on molar mass distribution, accurately determining the molar mass distribution is a necessary part of understanding PEO's role in abuse-deterrent formulations (ADF). In this study, an asymmetrical flow field-flow fractionation (AF4) analytical procedure was developed to characterize PEO polymers with nominal molar masses of 1, 4 or 7 MDa as well as those from in-house prepared placebo ADF. The placebo ADF were manufactured using direct compress or hot-melt-extrusion methods, and subjected to physical manipulation, such as heating and grinding before measurement by AF4 were performed. The molar mass distribution characterized by AF4 revealed that PEO was sensitive to thermal stress, exhibiting decreased molar mass with increased heat exposure. The optimized AF4 method was deemed suitable for characterizing HM-PEO, offering adequate dynamic separation range for PEO with molar mass from 100 kDa to approximately 10 MDa.
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Affiliation(s)
- Haiou Qu
- Division of Product Quality Research, Office of Testing and Research, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland 20993.
| | - William C Smith
- Division of Product Quality Research, Office of Testing and Research, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland 20993
| | - Xin Feng
- Division of Product Quality Research, Office of Testing and Research, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland 20993
| | - Jiang Wang
- Division of Product Quality Research, Office of Testing and Research, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland 20993
| | - Julia Pinto
- Division of New Drug Product II, Office of New Drug Products, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research U.S. Food and Drug Administration, Silver Spring, Maryland 20993
| | - Xiaoming Xu
- Division of Product Quality Research, Office of Testing and Research, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland 20993
| | - Patrick J Faustino
- Division of Product Quality Research, Office of Testing and Research, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland 20993.
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Dufour D, Rolland-Sabaté A, Mina Cordoba HA, Luna Melendez JL, Moreno Alzate JL, Pizzaro M, Guilois Dubois S, Sánchez T, Eiver Belalcazar J, Morante N, Tran T, Moreno-Santander M, Vélez-Hernández G, Ceballos H. Native and fermented waxy cassava starch as a novel gluten-free and clean label ingredient for baking and expanded product development. Food Funct 2022; 13:9254-9267. [PMID: 35980275 DOI: 10.1039/d2fo00048b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amylose-free and wild-type cassava starches were fermented for up to 30 days and oven- or sun-dried. The specific volume (ν) after baking was measured in native and fermented starches. The average ν (across treatments) for waxy starch was 3.5 times higher than that in wild-type starches (17.6 vs. 4.8 cm3 g-1). The best wild-type starch (obtained after fermentation and sun-drying) had considerably poorer breadmaking potential than native waxy cassava (8.4 vs. 16.4 cm3 g-1, respectively). The best results were generally obtained through the synergistic combination of fermentation (for about 10-14 days) and sun-drying. Fermentation reduced viscosities and the weight average molar mass led to denser macromolecules and increased branching degree, which are linked to a high loaf volume. The absence of amylose, however, was shown to be a main determinant as well. Native waxy starch (neutral in taste, gluten-free, and considerably less expensive than the current alternatives to cassava) could become a new ingredient for the formulation of clean label-baked or fried expanded products.
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Affiliation(s)
- Dominique Dufour
- French Agricultural Research Centre for International Development, CIRAD, UMR Qualisud, Montpellier, France. .,French Agricultural Research Centre for International Development, CIRAD, UMR Qualisud, Cali, Colombia.,Qualisud, Univ. Montpellier, CIRAD, Montpellier SupAgro, Univ. d'Avignon, Univ. de La Réunion, Montpellier, France.,CGIAR Research Program on Roots, Tubers and Bananas (RTB), ABC: The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali, Colombia
| | | | - Hansel A Mina Cordoba
- CGIAR Research Program on Roots, Tubers and Bananas (RTB), ABC: The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali, Colombia
| | - Jorge Luis Luna Melendez
- CGIAR Research Program on Roots, Tubers and Bananas (RTB), ABC: The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali, Colombia
| | - Jhon Larry Moreno Alzate
- CGIAR Research Program on Roots, Tubers and Bananas (RTB), ABC: The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali, Colombia
| | - Mónica Pizzaro
- CGIAR Research Program on Roots, Tubers and Bananas (RTB), ABC: The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali, Colombia
| | | | - Teresa Sánchez
- CGIAR Research Program on Roots, Tubers and Bananas (RTB), ABC: The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali, Colombia
| | - John Eiver Belalcazar
- CGIAR Research Program on Roots, Tubers and Bananas (RTB), ABC: The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali, Colombia
| | - Nelson Morante
- CGIAR Research Program on Roots, Tubers and Bananas (RTB), ABC: The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali, Colombia
| | - Thierry Tran
- French Agricultural Research Centre for International Development, CIRAD, UMR Qualisud, Montpellier, France. .,French Agricultural Research Centre for International Development, CIRAD, UMR Qualisud, Cali, Colombia.,Qualisud, Univ. Montpellier, CIRAD, Montpellier SupAgro, Univ. d'Avignon, Univ. de La Réunion, Montpellier, France.,CGIAR Research Program on Roots, Tubers and Bananas (RTB), ABC: The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali, Colombia
| | | | | | - Hernán Ceballos
- CGIAR Research Program on Roots, Tubers and Bananas (RTB), ABC: The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali, Colombia
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Extrusion Simulation for the Design of Cereal and Legume Foods. Foods 2022; 11:foods11121780. [PMID: 35741977 PMCID: PMC9222340 DOI: 10.3390/foods11121780] [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: 05/11/2022] [Revised: 06/08/2022] [Accepted: 06/12/2022] [Indexed: 11/16/2022] Open
Abstract
A 1D global twin-screw extrusion model, implemented in numerical software, Ludovic®, was applied to predict extrusion variables and, therefore, to design various starchy products with targeted structure and properties. An experimental database was built with seven starchy food formulations for manufacturing dense and expanded foods made from starches, starch blends, breakfast cereals, pulse crop ingredients such as pea flour, fava bean flour, and fava bean starch concentrated, and wheat flour enriched with wheat bran. This database includes the thermal and physical properties of the formulations at solid and molten states, melt viscosity model, extruder configurations and operating parameters, and extruded foods properties. Using extrusion and viscosity models, melt temperature (T) and specific mechanical energy (SME) were satisfactorily predicted. A sensitivity analysis of variables at die exit was performed on formulation, extruder configuration, and operating parameters, generating the extruder operating charts. Results allowed the establishment of relationships between predicted variables (T, SME, melt viscosity) and product features such as starch and protein structural change, density and cellular structure, and functional properties. The extrusion operating conditions leading to targeted food properties can be assessed from these relationships and also the relationship between extrusion operating parameters and variables provided by simulation.
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Structural characteristics of Saccharomyces cerevisiae mannoproteins: Impact of their polysaccharide part. Carbohydr Polym 2022; 277:118758. [PMID: 34893213 DOI: 10.1016/j.carbpol.2021.118758] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/24/2021] [Accepted: 10/08/2021] [Indexed: 11/20/2022]
Abstract
While they have many properties of interest in enology, the structure-function relationships of mannoproteins and the part played by their polysaccharide moiety are not yet well understood. Mannoproteins (MP) extracted with β-glucanase from a laboratory yeast strain (WT), two of its mutants (Mnn2 with unbranched N-glycosylated chains and Mnn4 without mannosyl-phosphorylation), and an enological strain (Com) were purified and thoroughly characterized. The protein moiety of the four MPs had the same amino acid composition. Glycosyl-linkage and net charge analyses confirmed the expected differences in mutant strain MPs. MP-Com had the highest mannose/glucose ratio followed by MP-WT/MP-Mnn4, and MP-Mnn2 (13.5 > 5.6 ≈ 5.2 > 2.2). The molar mass dependencies of Rg, Rh, and [η], determined through HPSEC-MALLS-QELS-Viscosimetry, revealed specific conformational properties of mannoproteins related to their nature of highly branched copolymers with two branching levels. It also clearly showed structural differences between MP-Com, MP-WT/Mnn4, and MP Mnn2, and differences between two populations within the four mannoproteins.
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Song T, Zhang W, Chen X, Zhang A, Guo S, Shen S, Li H, Dou H. Insights into the correlations between the size of starch at nano- to microscale and its functional properties based on asymmetrical flow field-flow fractionation. Int J Biol Macromol 2021; 193:500-509. [PMID: 34710476 DOI: 10.1016/j.ijbiomac.2021.10.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 09/13/2021] [Accepted: 10/13/2021] [Indexed: 11/24/2022]
Abstract
In this study, the starches were isolated from three botanical sources (i.e., rice, sweet potato, and lotus seed). The size distributions of starch granules and molecules were determined by asymmetrical flow field-flow fractionation (AF4), and compared with those measured from optical microscopy (OM) and dynamic light scattering (DLS). Furthermore, the starches were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC). AF4 coupled online with UV-visible, multiangle light scattering (MALS), and differential refractive index (dRI) detectors (AF4-UV-MALS-dRI) was employed for the investigation of the digestion and retrogradation properties of starches. Meanwhile, the relationships between the size of starch at nano- to microscale and its functional properties (i.e., digestibility, retrogradation, and thermal properties) were studied by Pearson correlation analysis. AF4-UV-MALS-dRI was proved to be a rapid and gentle method for the separation and size characterization of starches at both micro- and nano-molecule levels. Moreover, it was demonstrated that AF4-UV-MALS-dRI is a useful tool for the monitoring of the digestion and retrogradation properties of starches. The results suggested that the sizes of starch granules and molecules were to some extent correlated with their thermal properties and digestibility, but not with retrogradation property.
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Affiliation(s)
- Tiange Song
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Wenhui Zhang
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Xue Chen
- Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Disease of Hebei Province, School of Basic Medical Sciences, Hebei University, Baoding 071000, China
| | - Aixia Zhang
- Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050035, China
| | - Suna Guo
- National & Local Joint Engineering Research Center of Metrology Instrument and System, College of Quality and Technical Supervision, Hebei University, Baoding 071000, China
| | - Shigang Shen
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
| | - Huili Li
- Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Disease of Hebei Province, School of Basic Medical Sciences, Hebei University, Baoding 071000, China
| | - Haiyang Dou
- Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China; Affiliated Hospital of Hebei University, Baoding 071000, China; Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Disease of Hebei Province, School of Basic Medical Sciences, Hebei University, Baoding 071000, China.
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Nomura K, Sakai M, Ohboshi H, Nakamura A. Extraction of a water-soluble polysaccharide fraction from lentils and its potential application in acidified protein dispersions. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106740] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Mao X, Long L, Shen J, Lin K, Yin L, Yi J, Zhang LM, Deng DYB, Yang L. Nanoparticles composed of the tea polysaccharide-complexed cationic vitamin B 12-conjugated glycogen derivative. Food Funct 2021; 12:8522-8534. [PMID: 34312648 DOI: 10.1039/d1fo00487e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Tea polysaccharides exhibit multiple important bioactivities, but very few of them can be absorbed through the small intestine. To enhance the absorption efficacy of tea polysaccharides, a cationic vitamin B12-conjugated glycogen derivative bearing the diethylenetriamine residues (VB12-DETA-Gly) was synthesized and characterized using FTIR, 1H NMR, and UV-vis spectroscopy. An acidic tea polysaccharide (TPSA) was isolated from green tea. The TPSA/VB12-DETA-Gly complexed nanoparticles were prepared, which showed positive zeta potentials and were irregular spherical nanoparticles in the sizes of 50-100 nm. To enable the fluorescence and UV-vis absorption properties of TPSA, a Congo red residue-conjugated TPSA derivative (CR-TPSA) was synthesized. The interactions and complexation mechanism between the CR-TPSA and the VB12-DETA-Gly derivatives were investigated using fluorescence spectroscopy, resonance light scattering spectroscopy, and UV-vis spectroscopy. The results indicated that the electrostatic interaction could play a major role during the CR-TPSA and VB12-DETA-Gly-II complexation processes. The TPSA/VB12-DETA-Gly nanoparticles were nontoxic and exhibited targeted endocytosis for the Caco-2 cells, and showed high permeation through intestinal enterocytes using the Caco-2 cell model. Therefore, they exhibit potential for enhancing the absorption efficacy of tea polysaccharides through the small intestinal mucosa.
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Affiliation(s)
- Xuhong Mao
- School of Materials Science and Engineering, School of Chemistry, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Polymer-based Composites, Sun Yat-sen University, Guangzhou 510275, China.
| | - Lingli Long
- Research Center of Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
| | - Juncheng Shen
- School of Materials Science and Engineering, School of Chemistry, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Polymer-based Composites, Sun Yat-sen University, Guangzhou 510275, China.
| | - Kunhua Lin
- School of Materials Science and Engineering, School of Chemistry, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Polymer-based Composites, Sun Yat-sen University, Guangzhou 510275, China.
| | - Lin Yin
- School of Materials Science and Engineering, School of Chemistry, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Polymer-based Composites, Sun Yat-sen University, Guangzhou 510275, China.
| | - Juzhen Yi
- School of Materials Science and Engineering, School of Chemistry, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Polymer-based Composites, Sun Yat-sen University, Guangzhou 510275, China.
| | - Li-Ming Zhang
- School of Materials Science and Engineering, School of Chemistry, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Polymer-based Composites, Sun Yat-sen University, Guangzhou 510275, China.
| | - David Y B Deng
- Scientific Research Center and Department of Orthopedic, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China and Research Center of Translational Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
| | - Liqun Yang
- School of Materials Science and Engineering, School of Chemistry, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Polymer-based Composites, Sun Yat-sen University, Guangzhou 510275, China.
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Hyperbranched Cationic Glycogen Derivative-Mediated I κB α Gene Silencing Regulates the Uveoscleral Outflow Pathway in Rats. BIOMED RESEARCH INTERNATIONAL 2021; 2020:8206849. [PMID: 33381584 PMCID: PMC7762656 DOI: 10.1155/2020/8206849] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 09/04/2020] [Accepted: 11/18/2020] [Indexed: 12/31/2022]
Abstract
The role of the IκB/NF-κB signaling pathway in the uveoscleral outflow pathway was investigated with IκBα gene silencing mediated by the 3-(dimethylamino)-1-propylamine-conjugated glycogen (DMAPA-Glyp) derivative. The IκBα-siRNA-loaded DMAPA-Glyp complex was transfected into the ciliary muscles of rats by intracameral injection (labeled as the DMAPA-Glyp+siRNA group). The Lipofectamine™ 2000 (Lipo)/siRNA complex and the naked siRNA were set as the controls. The mRNA and protein expression of IκBα, NF-κBp65, and MMP-2 were analyzed by real-time PCR, western blotting, and in situ gelatin zymography. Nuclear translocation of NF-κBp65 was analyzed by immunofluorescence. Rat intraocular pressure (IOP) was monitored pre- and postinjection. Gene transfection efficiency and toxicity of the DMAPA-Glyp derivative were also evaluated. After RNA interference (RNAi), IκBα mRNA and protein expression were significantly inhibited. NF-κBp65 mRNA and protein expression showed no significant differences. Nevertheless, nuclear translocation of NF-κBp65 occurred in the DMAPA-Glyp+siRNA group. Both mRNA expression and activity of MMP-2 increased, with the largest increase in the DMAPA-Glyp+siRNA group. IOP in the DMAPA-Glyp+siRNA group fell to the lowest level on day 3 after RNAi. The levels of Cy3-siRNA in the ciliary muscle of the DMAPA-Glyp+siRNA group did not significantly decrease over time. At 7 and 14 d after RNAi, no significant pathological damage was detectable in the eyes injected with the DMAPA-Glyp derivative or the DMAPA-Glyp/siRNA complex. Taken together, our results suggest that downregulation of IκBα expression in the ciliary muscle plays a crucial role in reducing the IOP values of rats. IκBα may become a new molecular target for lowering IOP in glaucoma. The DMAPA-Glyp derivative is safe and feasible as an effective siRNA vector in rat eyes.
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Starch and Glycogen Analyses: Methods and Techniques. Biomolecules 2020; 10:biom10071020. [PMID: 32660096 PMCID: PMC7407607 DOI: 10.3390/biom10071020] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 01/16/2023] Open
Abstract
For complex carbohydrates, such as glycogen and starch, various analytical methods and techniques exist allowing the detailed characterization of these storage carbohydrates. In this article, we give a brief overview of the most frequently used methods, techniques, and results. Furthermore, we give insights in the isolation, purification, and fragmentation of both starch and glycogen. An overview of the different structural levels of the glucans is given and the corresponding analytical techniques are discussed. Moreover, future perspectives of the analytical needs and the challenges of the currently developing scientific questions are included.
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Volant C, Gilet A, Beddiaf F, Collinet-Fressancourt M, Falourd X, Descamps N, Wiatz V, Bricout H, Tilloy S, Monflier E, Quettier C, Mazzah A, Rolland-Sabaté A. Multiscale Structure of Starches Grafted with Hydrophobic Groups: A New Analytical Strategy. Molecules 2020; 25:molecules25122827. [PMID: 32570969 PMCID: PMC7356499 DOI: 10.3390/molecules25122827] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/17/2020] [Accepted: 06/17/2020] [Indexed: 12/13/2022] Open
Abstract
Starch, an abundant and low-cost plant-based glucopolymer, has great potential to replace carbon-based polymers in various materials. In order to optimize its functional properties for bioplastics applications chemical groups need to be introduced on the free hydroxyl groups in a controlled manner, so an understanding of the resulting structure-properties relationships is therefore essential. The purpose of this work was to study the multiscale structure of highly-acetylated (degree of substitution, 0.4 < DS ≤ 3) and etherified starches by using an original combination of experimental strategies and methodologies. The molecular structure and substituents repartition were investigated by developing new sample preparation strategies for specific analysis including Asymmetrical Flow Field Flow Fractionation associated with Multiangle Laser Light Scattering, Nuclear Magnetic Resonance (NMR), Raman and Time of Flight Secondary Ion Mass spectroscopies. Molar mass decrease and specific ways of chain breakage due to modification were pointed out and are correlated to the amylose content. The amorphous structuration was revealed by solid-state NMR. This original broad analytical approach allowed for the first time a large characterization of highly-acetylated starches insoluble in aqueous solvents. This strategy, then applied to characterize etherified starches, opens the way to correlate the structure to the properties of such insoluble starch-based materials.
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Affiliation(s)
- Chloé Volant
- University Lille, CNRS, USR3290—MSAP—Miniaturisation pour la Synthèse, l’Analyse et la Protéomique, F-59000 Lille, France; (C.V.); (A.M.)
| | - Alexandre Gilet
- University Artois, CNRS, Centrale Lille, University Lille, UMR 8181—UCCS—Unité de Catalyse et Chimie du Solide, F-62300 Lens, France; (A.G.); (H.B.); (S.T.)
| | | | - Marion Collinet-Fressancourt
- CIRAD, UPR Recyclage et Risque, F-97743 Saint-Denis, Réunion, France;
- University Montpellier, Recyclage et Risque, CIRAD, 34398 Montpellier, France
| | - Xavier Falourd
- INRAE, UR BIA, F-44316 Nantes, France; (F.B.); (X.F.)
- INRAE, BIBS Facility, F-44316 Nantes, France
| | - Nicolas Descamps
- ROQUETTE Frères, Rue de la Haute Loge, 62136 Lestrem, France; (N.D.); (V.W.); (C.Q.)
| | - Vincent Wiatz
- ROQUETTE Frères, Rue de la Haute Loge, 62136 Lestrem, France; (N.D.); (V.W.); (C.Q.)
| | - Hervé Bricout
- University Artois, CNRS, Centrale Lille, University Lille, UMR 8181—UCCS—Unité de Catalyse et Chimie du Solide, F-62300 Lens, France; (A.G.); (H.B.); (S.T.)
| | - Sébastien Tilloy
- University Artois, CNRS, Centrale Lille, University Lille, UMR 8181—UCCS—Unité de Catalyse et Chimie du Solide, F-62300 Lens, France; (A.G.); (H.B.); (S.T.)
| | - Eric Monflier
- University Artois, CNRS, Centrale Lille, University Lille, UMR 8181—UCCS—Unité de Catalyse et Chimie du Solide, F-62300 Lens, France; (A.G.); (H.B.); (S.T.)
- Correspondence: (E.M.); (A.R.-S.); Tel.: +33-(0)3-2179-1772 (E.M.); +33-(0)4-3272-2522 (A.R.-S.)
| | - Claude Quettier
- ROQUETTE Frères, Rue de la Haute Loge, 62136 Lestrem, France; (N.D.); (V.W.); (C.Q.)
| | - Ahmed Mazzah
- University Lille, CNRS, USR3290—MSAP—Miniaturisation pour la Synthèse, l’Analyse et la Protéomique, F-59000 Lille, France; (C.V.); (A.M.)
| | - Agnès Rolland-Sabaté
- INRAE, UR BIA, F-44316 Nantes, France; (F.B.); (X.F.)
- INRAE, Université d’Avignon, UMR SQPOV, F-84914 Avignon, France
- Correspondence: (E.M.); (A.R.-S.); Tel.: +33-(0)3-2179-1772 (E.M.); +33-(0)4-3272-2522 (A.R.-S.)
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Cellulose nanocrystals-starch nanocomposites produced by extrusion: Structure and behavior in physiological conditions. Carbohydr Polym 2019; 225:115123. [DOI: 10.1016/j.carbpol.2019.115123] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/18/2019] [Accepted: 07/22/2019] [Indexed: 11/19/2022]
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13
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Dockhorn R, Plüschke L, Geisler M, Zessin J, Lindner P, Mundil R, Merna J, Sommer JU, Lederer A. Polyolefins Formed by Chain Walking Catalysis-A Matter of Branching Density Only? J Am Chem Soc 2019; 141:15586-15596. [PMID: 31438682 DOI: 10.1021/jacs.9b06785] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recently developed chain walking (CW) catalysis is an elegant approach to produce materials with controllable structure and properties. However, there is still a lack in understanding of how the reaction mechanism influences the macromolecular structures. In this study, a series of dendritic polyethylenes (PE) synthesized by Pd-α-diimine-complex through CW catalysis (CWPE) is investigated by means of theory and experiment. Thereby, the exceptional ability of in situ tailoring polymer structure by varying synthesis parameters was exploited to tune the branching architecture, which allowed us to establish a precise relationship between synthesis, structure, and solution properties. The systematically produced polymers were characterized by state-of-the-art multidetector separation and neutron scattering experiments as well as atomic force microscopy to access molecular properties of CWPE. On a global scale, the CWPE appear in a worm-like conformation independently on the synthesis conditions. However, severe differences in their contraction factors suggested that CWPE differ substantially in topology. These observations were verified by NMR studies that showed that CWPE possess a constant total number of branches but varying branching distribution. Small angle neutron scattering experiments gave access to structural characteristics from global to segmental scale and revealed the unique heterogeneity of CWPE, which is predominantly based on differences in their dendritic side chains. The experimental data were compared to theoretical CW structures modeled with different reaction-to-walking probabilities. Simple theoretical arguments predict a crossover from dendritic to linear topologies yielding a structural range from purely linear to dendritic chain growth. Yet, comparison of theoretical and empirical scattering curves gave the first evidence that a transition state to worm-like topologies is actually experimentally accessible. This crossover regime is characterized by linear global features and dendritic local substructures contrary to randomly hyperbranched systems. Instead, the obtained CWPE systems have characteristics of disordered dendritic bottle brushes and can be adjusted by the walking rate/reaction probability of the catalyst.
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Affiliation(s)
- Ron Dockhorn
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , 01069 Dresden , Germany
| | - Laura Plüschke
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , 01069 Dresden , Germany.,Technische Universität Dresden , 01062 Dresden , Germany
| | - Martin Geisler
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , 01069 Dresden , Germany.,Technische Universität Dresden , 01062 Dresden , Germany
| | - Johanna Zessin
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , 01069 Dresden , Germany.,Technische Universität Dresden , 01062 Dresden , Germany
| | - Peter Lindner
- Institut Laue-Langevin (ILL) , 71 Avenue des Martyrs , 38000 Grenoble , France
| | - Robert Mundil
- University of Chemistry and Technology Prague , Technická 5 , 16628 Prague 6 , Czech Republic
| | - Jan Merna
- University of Chemistry and Technology Prague , Technická 5 , 16628 Prague 6 , Czech Republic
| | - Jens-Uwe Sommer
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , 01069 Dresden , Germany.,Technische Universität Dresden , 01062 Dresden , Germany
| | - Albena Lederer
- Leibniz Institute of Polymer Research Dresden , Hohe Strasse 6 , 01069 Dresden , Germany.,Technische Universität Dresden , 01062 Dresden , Germany
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Structure, bioactivity and applications of natural hyperbranched polysaccharides. Carbohydr Polym 2019; 223:115076. [PMID: 31427017 DOI: 10.1016/j.carbpol.2019.115076] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/07/2019] [Accepted: 07/09/2019] [Indexed: 11/23/2022]
Abstract
In recent years, hyperbranched polymers, especially the natural hyperbranched polysaccharides (HBPSs), are receiving much attention due to their diverse biological activities and applications. With high degree of branching (DB), HBPSs mainly exist in the form of either a comb-brush shape, dendrimer-like particulate, or globular particle. HBPSs also possess some unique properties, such as high density, large spatial cavities, and numerous terminal functional groups, which distinguish them from other polymers. As a natural biopolymer, HBPS has excellent bioavailability, biocompatibility, and biodegradability, which have versatile applications in the fields of food, medicine, cosmetic, and nanomaterials. In this review, the source and structure of HBPSs from plant, animal, microbial and fungal origins as well as their biological functions and applications are covered, with the aim of further advancing the research of their structure and bioactivity.
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Leclercq L, Saetear P, Rolland-Sabaté A, Biron JP, Chamieh J, Cipelletti L, Bornhop DJ, Cottet H. Size-Based Characterization of Polysaccharides by Taylor Dispersion Analysis with Photochemical Oxidation or Backscattering Interferometry Detections. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00605] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Laurent Leclercq
- IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier 34095, France
| | - Phoonthawee Saetear
- IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier 34095, France
- Department of Chemistry and the Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Ratchathewi, Bangkok 10400, Thailand
| | - Agnès Rolland-Sabaté
- UR1268 Biopolymères Interactions Assemblages, INRA, F-44300 Nantes, France
- UMR0408 Sécurité et Qualité des Produits d’Origine Végétale, INRA, Université Avignon, F-84000 Avignon, France
| | | | - Joseph Chamieh
- IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier 34095, France
| | - Luca Cipelletti
- L2C, Université de Montpellier, CNRS, Montpellier 34095, France
| | | | - Hervé Cottet
- IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier 34095, France
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16
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Xiao C, Hu H, Yang H, Li S, Zhou H, Ruan J, Zhu Y, Yang X, Li Z. Colloidal hydroxyethyl starch for tumor-targeted platinum delivery. NANOSCALE ADVANCES 2019; 1:1002-1012. [PMID: 36133197 PMCID: PMC9473228 DOI: 10.1039/c8na00271a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 11/23/2018] [Indexed: 05/06/2023]
Abstract
Cis-platinum has been widely used as a first-line chemotherapy agent in clinics for more than 40 years. Although considerable efforts have been expended for developing platinum-based nano drug delivery systems (NDDS) to resolve the problems of low water solubility, short half-life, and severe side effects of cis-platinum, it remains challenging to apply these nanoplatforms to cancer treatments in clinics on account of the issues related to safety, complex fabrication procedures, and limited cellular uptake. Herein, we constructed a novel cis-platinum delivery system with hydroxyethyl starch (HES), which is a semisynthetic polysaccharide that has been used worldwide as colloidal plasma volume expanders (PVE) in clinics for several decades. By combining TEM, AFM, and DLS, we have found that HES particles are colloidal nanoparticles in solution, with diameters ranging from 15 to 40 nm as a function of molecular weight. We further revealed that HES adopted a hyperbranched colloidal structure with rather compact conformation. These results demonstrate that HES is a promising nanocarrier to deliver drug molecules. Taking advantage of the poly-hydroxyl sites of HES, we constructed a novel HES-based cis-platinum delivery nanoplatform. HES was directly conjugated with cis-platinum prodrug via an ester bond and decorated with an active targeting molecule, lactobionic acid (LA), contributing toward higher in vitro antitumor activity against hepatoma carcinoma cells as compared to cis-platinum. These results have significant implications for the clinically used plasma volume expander-HES and shed light on the clinical translation of HES-based nano drug delivery systems.
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Affiliation(s)
- Chen Xiao
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China +86 27 87792234 +86 27 87792234
- Department of Nanomedicine and Biopharmaceutics, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China
| | - Hang Hu
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China +86 27 87792234 +86 27 87792234
- Department of Nanomedicine and Biopharmaceutics, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China
| | - Hai Yang
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China +86 27 87792234 +86 27 87792234
- Department of Nanomedicine and Biopharmaceutics, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China
| | - Si Li
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China +86 27 87792234 +86 27 87792234
- Department of Nanomedicine and Biopharmaceutics, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China
| | - Hui Zhou
- Department of Nanomedicine and Biopharmaceutics, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China
| | - Jian Ruan
- Wuhan HUST Life Science & Technology Co., Ltd Wuhan 430223 China
| | - Yuting Zhu
- Wuhan HUST Life Science & Technology Co., Ltd Wuhan 430223 China
| | - Xiangliang Yang
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China +86 27 87792234 +86 27 87792234
- Department of Nanomedicine and Biopharmaceutics, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Huazhong University of Science and Technology Wuhan 430074 China
| | - Zifu Li
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China +86 27 87792234 +86 27 87792234
- Department of Nanomedicine and Biopharmaceutics, College of Life Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Huazhong University of Science and Technology Wuhan 430074 China
- Wuhan Institute of Biotechnology High Tech Road 666, East Lake High Tech Zone Wuhan 430040 China
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17
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Ortiz-Tafoya M, Rolland-Sabaté A, Garnier C, Valadez-García J, Tecante A. Thermal, conformational and rheological properties of κ-carrageenan-sodium stearoyl lactylate gels and solutions. Carbohydr Polym 2018; 193:289-297. [DOI: 10.1016/j.carbpol.2018.04.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 03/15/2018] [Accepted: 04/01/2018] [Indexed: 11/25/2022]
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18
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How does temperature govern mechanisms of starch changes during extrusion? Carbohydr Polym 2018; 184:57-65. [DOI: 10.1016/j.carbpol.2017.12.040] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 12/03/2017] [Accepted: 12/14/2017] [Indexed: 11/21/2022]
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19
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Shimizu N, Ushiyama T. Structure of Fine Waxy Rice Starch Prepared Via a Compressed Hot Water Process. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2018. [DOI: 10.3136/fstr.24.795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Naoto Shimizu
- Research Faculty of Agriculture, Hokkaido University
- Field Science Center for Northern Biosphere, Hokkaido University
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20
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Loiseleux T, Rolland-Sabaté A, Garnier C, Croguennec T, Guilois S, Anton M, Riaublanc A. Determination of hydro-colloidal characteristics of milk protein aggregates using Asymmetrical Flow Field-Flow Fractionation coupled with Multiangle Laser Light Scattering and Differential Refractometer (AF4-MALLS-DRi). Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2017.08.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Hu H, Xiao C, Wu H, Li Y, Zhou Q, Tang Y, Yu C, Yang X, Li Z. Nanocolloidosomes with Selective Drug Release for Active Tumor-Targeted Imaging-Guided Photothermal/Chemo Combination Therapy. ACS APPLIED MATERIALS & INTERFACES 2017; 9:42225-42238. [PMID: 29124920 DOI: 10.1021/acsami.7b14796] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Selective drug release is highly desirable for photothermal/chemo combination therapy when two or even more theranostic agents are encapsulated together within the same nanocarrier. A conventional nanocarrier can hardly achieve this goal. Herein, doxorubicin and indocyanine green (DOX/ICG)-loaded nanocolloidosomes (NCs), with selective drug release, were fabricated as a novel multifunctional theranostic nanoplatform for photothermal/chemo combination therapy. Templating from galactose-functionalized hydroxyethyl starch-polycaprolactone (Gal-HES-PCL) nanoparticles-stabilized Pickering emulsions, the resultant DOX/ICG@Gal-HES-PCL NCs had a diameter of around 140 nm and showed an outstanding tumor-targeting ability, preferable tumor penetration capability, and promotion of photothermal effect. Moreover, these NCs can be used for NIR fluorescence imaging and thus render real-time imaging of solid tumors with high contrast. Collectively, such NCs achieved the best in vivo antitumor efficacy combined with laser irradiation compared with DOX/ICG@HES-PCL NCs and DOX/ICG mixture. These NCs are valuable for active tumor-targeted imaging-guided combination therapy against liver cancer and potentially other diseases.
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Affiliation(s)
- Hang Hu
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Chen Xiao
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Honglian Wu
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Yihui Li
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Qing Zhou
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Yuxiang Tang
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Chan Yu
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Xiangliang Yang
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
| | - Zifu Li
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan 430074, P. R. China
- Wuhan Institute of Biotechnology , High Tech Road 666, East Lake High Tech Zone, Wuhan 430040, P. R. China
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22
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Vuillemin M, Grimaud F, Claverie M, Rolland-Sabaté A, Garnier C, Lucas P, Monsan P, Dols-Lafargue M, Remaud-Siméon M, Moulis C. A dextran with unique rheological properties produced by the dextransucrase from Oenococcus kitaharae DSM 17330. Carbohydr Polym 2017; 179:10-18. [PMID: 29111031 DOI: 10.1016/j.carbpol.2017.09.056] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/11/2017] [Accepted: 09/15/2017] [Indexed: 10/18/2022]
Abstract
A gene encoding a novel dextransucrase was identified in the genome of Oenococcus kitaharae DSM17330 and cloned into E. coli. With a kcat of 691s-1 and a half-life time of 111h at 30°C, the resulting recombinant enzyme -named DSR-OK- stands as one of the most efficient and stable dextransucrase characterized to date. From sucrose, this enzyme catalyzes the synthesis of a quasi linear dextran with a molar mass higher than 1×109g·mol-1 that presents uncommon rheological properties such as a higher viscosity than that of the most industrially used dextran from L. mesenteroides NRRL-B-512F, a yield stress that was never described before for any type of dextran, as well as a gel-like structure. All these properties open the way to a vast array of new applications in health, food/feed, bulk or fine chemicals fields.
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Affiliation(s)
- Marlène Vuillemin
- LISBP, Université de Toulouse, CNRS, INRA, INSA, F-31077 Toulouse, France
| | - Florent Grimaud
- LISBP, Université de Toulouse, CNRS, INRA, INSA, F-31077 Toulouse, France
| | - Marion Claverie
- LISBP, Université de Toulouse, CNRS, INRA, INSA, F-31077 Toulouse, France
| | - Agnès Rolland-Sabaté
- UR1268 Biopolymères Interactions Assemblages, INRA, F-44300 Nantes, France; UMR408 Sécurité et Qualité des Produits d'Origine Végétale, INRA, Université Avignon, F-84000 Avignon, France
| | - Catherine Garnier
- UR1268 Biopolymères Interactions Assemblages, INRA, F-44300 Nantes, France
| | - Patrick Lucas
- Université de Bordeaux, ISVV, EA 4577, Unité de recherche Oenologie, Institut polytechnique de Bordeaux, INRA USC 1366, F-33140 Villenave d'Ornon, France
| | - Pierre Monsan
- Toulouse White Biotechnology Center, Parc Technologique du Canal, F-31520 Ramonville Saint Agnes, France
| | - Marguerite Dols-Lafargue
- Université de Bordeaux, ISVV, EA 4577, Unité de recherche Oenologie, Institut polytechnique de Bordeaux, INRA USC 1366, F-33140 Villenave d'Ornon, France
| | | | - Claire Moulis
- LISBP, Université de Toulouse, CNRS, INRA, INSA, F-31077 Toulouse, France.
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23
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Rodriguez-Ambriz SL, Mendez-Montealvo G, Velazquez G, Bello-Perez LA. Thermal, rheological, and structural characteristics of banana starches isolated using ethanol. STARCH-STARKE 2017. [DOI: 10.1002/star.201600360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | - Gonzalo Velazquez
- Instituto Politécnico Nacional; CICATA Querétaro; Santiago de Querétaro, Querétaro México
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24
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Perez-Rea D, Zielke C, Nilsson L. Co-elution effects can influence molar mass determination of large macromolecules with asymmetric flow field-flow fractionation coupled to multiangle light scattering. J Chromatogr A 2017; 1506:138-141. [DOI: 10.1016/j.chroma.2017.05.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 05/05/2017] [Accepted: 05/12/2017] [Indexed: 10/19/2022]
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26
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Villares A, Bizot H, Moreau C, Rolland-Sabaté A, Cathala B. Effect of xyloglucan molar mass on its assembly onto the cellulose surface and its enzymatic susceptibility. Carbohydr Polym 2017; 157:1105-1112. [DOI: 10.1016/j.carbpol.2016.10.072] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 10/21/2016] [Accepted: 10/24/2016] [Indexed: 11/16/2022]
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28
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Chevigny C, Foucat L, Rolland-Sabaté A, Buléon A, Lourdin D. Shape-memory effect in amorphous potato starch: The influence of local orders and paracrystallinity. Carbohydr Polym 2016; 146:411-9. [DOI: 10.1016/j.carbpol.2016.03.065] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/21/2016] [Accepted: 03/22/2016] [Indexed: 11/28/2022]
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Harding SE, Adams GG, Gillis RB. Molecular weight analysis of starches: Which technique? STARCH-STARKE 2016. [DOI: 10.1002/star.201600042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Stephen E. Harding
- National Centre for Macromolecular Hydrodynamics; University of Nottingham; Sutton Bonington UK
| | - Gary G. Adams
- National Centre for Macromolecular Hydrodynamics; University of Nottingham; Sutton Bonington UK
| | - Richard B. Gillis
- National Centre for Macromolecular Hydrodynamics; University of Nottingham; Sutton Bonington UK
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30
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Morante N, Ceballos H, Sánchez T, Rolland-Sabaté A, Calle F, Hershey C, Gibert O, Dufour D. Discovery of new spontaneous sources of amylose-free cassava starch and analysis of their structure and techno-functional properties. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2015.12.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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31
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Lopez-Torrez L, Nigen M, Williams P, Doco T, Sanchez C. Acacia senegal vs. Acacia seyal gums – Part 1: Composition and structure of hyperbranched plant exudates. Food Hydrocoll 2015. [DOI: 10.1016/j.foodhyd.2015.04.019] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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Torino MI, Font de Valdez G, Mozzi F. Biopolymers from lactic acid bacteria. Novel applications in foods and beverages. Front Microbiol 2015; 6:834. [PMID: 26441845 PMCID: PMC4566036 DOI: 10.3389/fmicb.2015.00834] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 07/29/2015] [Indexed: 02/03/2023] Open
Abstract
Lactic acid bacteria (LAB) are microorganisms widely used in the fermented food industry worldwide. Certain LAB are able to produce exopolysaccharides (EPS) either attached to the cell wall (capsular EPS) or released to the extracellular environment (EPS). According to their composition, LAB may synthesize heteropolysaccharides or homopolysaccharides. A wide diversity of EPS are produced by LAB concerning their monomer composition, molecular mass, and structure. Although EPS-producing LAB strains have been traditionally applied in the manufacture of dairy products such as fermented milks and yogurts, their use in the elaboration of low-fat cheeses, diverse type of sourdough breads, and certain beverages are some of the novel applications of these polymers. This work aims to collect the most relevant issues of the former reviews concerning the monomer composition, structure, and yields and biosynthetic enzymes of EPS from LAB; to describe the recently characterized EPS and to present the application of both EPS-producing strains and their polymers in the fermented (specifically beverages and cereal-based) food industry.
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Affiliation(s)
- María I. Torino
- Technology Department, Centro de Referencia para Lactobacilos – Consejo Nacional de Investigaciones Científicas y Técnicas, San Miguel de TucumánArgentina
| | | | - Fernanda Mozzi
- Technology Department, Centro de Referencia para Lactobacilos – Consejo Nacional de Investigaciones Científicas y Técnicas, San Miguel de TucumánArgentina
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Development and evaluation of methods for starch dissolution using asymmetrical flow field-flow fractionation. Part II: Dissolution of amylose. Anal Bioanal Chem 2015; 408:1399-412. [DOI: 10.1007/s00216-015-8894-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 05/22/2015] [Accepted: 07/01/2015] [Indexed: 10/23/2022]
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34
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Liang X, Wu S, Ren X, Quan D, Zhang L, Deng Y, Yang L. Complexation behaviors of hyperbranched cationic glycogen derivatives with plasmid DNA revealed by resonance light scattering and circular dichroism spectroscopy. STARCH-STARKE 2015. [DOI: 10.1002/star.201400224] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xuan Liang
- Department of Polymer and Material ScienceSchool of Chemistry and Chemical EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationKey Laboratory of Designed Synthesis and Application of Polymer Material of Guangdong ProvinceKey Laboratory for High Performance Polymer‐based Composites of Guangdong ProvinceGuangdong Provincial Key Laboratory for High Performance Polymer‐based CompositesSun Yat‐Sen UniversityGuangzhouChina
| | - Shuyun Wu
- Department of Polymer and Material ScienceSchool of Chemistry and Chemical EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationKey Laboratory of Designed Synthesis and Application of Polymer Material of Guangdong ProvinceKey Laboratory for High Performance Polymer‐based Composites of Guangdong ProvinceGuangdong Provincial Key Laboratory for High Performance Polymer‐based CompositesSun Yat‐Sen UniversityGuangzhouChina
| | - Xianyue Ren
- Research Center of Translational Medicine, The First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Daping Quan
- Department of Polymer and Material ScienceSchool of Chemistry and Chemical EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationKey Laboratory of Designed Synthesis and Application of Polymer Material of Guangdong ProvinceKey Laboratory for High Performance Polymer‐based Composites of Guangdong ProvinceGuangdong Provincial Key Laboratory for High Performance Polymer‐based CompositesSun Yat‐Sen UniversityGuangzhouChina
| | - Li‐Ming Zhang
- Department of Polymer and Material ScienceSchool of Chemistry and Chemical EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationKey Laboratory of Designed Synthesis and Application of Polymer Material of Guangdong ProvinceKey Laboratory for High Performance Polymer‐based Composites of Guangdong ProvinceGuangdong Provincial Key Laboratory for High Performance Polymer‐based CompositesSun Yat‐Sen UniversityGuangzhouChina
| | - Yubing Deng
- Research Center of Translational Medicine, The First Affiliated HospitalSun Yat‐sen UniversityGuangzhouChina
| | - Liqun Yang
- Department of Polymer and Material ScienceSchool of Chemistry and Chemical EngineeringKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationKey Laboratory of Designed Synthesis and Application of Polymer Material of Guangdong ProvinceKey Laboratory for High Performance Polymer‐based Composites of Guangdong ProvinceGuangdong Provincial Key Laboratory for High Performance Polymer‐based CompositesSun Yat‐Sen UniversityGuangzhouChina
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Geneix N, Dalgalarrondo M, Bakan B, Rolland-Sabaté A, Elmorjani K, Marion D. A single amino acid substitution in puroindoline b impacts its self-assembly and the formation of heteromeric assemblies with puroindoline a. J Cereal Sci 2015. [DOI: 10.1016/j.jcs.2015.05.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Liu Z, Gong H, Zeng R, Liang X, Zhang LM, Yang L, Lan Y. Efficient delivery of NF-κB siRNA to human retinal pigment epithelial cells with hyperbranched cationic polysaccharide derivative-based nanoparticles. Int J Nanomedicine 2015; 10:2735-49. [PMID: 25897219 PMCID: PMC4396640 DOI: 10.2147/ijn.s75188] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
A hyperbranched cationic polysaccharide derivative-mediated small interfering (si)RNA interference strategy was proposed to inhibit nuclear transcription factor-kappa B (NF-κB) activation in human retinal pigment epithelial (hRPE) cells for the gene therapy of diabetic retinopathy. Two hyperbranched cationic polysaccharide derivatives containing the same amount of cationic residues, but with different branching structures and molecular weights, including 3-(dimethylamino)-1-propylamine-conjugated glycogen (DMAPA-Glyp) and amylopectin (DMAPA-Amp) derivatives, were developed for the efficient delivery of NF-κB siRNA into hRPE cells. The DMAPA-Glyp derivative showed lower toxicity against hRPE cells. Furthermore, the DMAPA-Glyp derivative more readily condensed siRNA and then formed the nanoparticles attributed to its higher branching architecture when compared to the DMAPA-Amp derivative. Both DMAPA-Glyp/siRNA and DMAPA-Amp/siRNA nanoparticles were able to protect siRNA from degradation by nuclease in 25% fetal bovine serum. The particle sizes of the DMAPA-Glyp/siRNA nanoparticles (70–120 nm) were smaller than those of the DMAPA-Amp/siRNA nanoparticles (130–180 nm) due to the higher branching architecture and lower molecular weight of the DMAPA-Glyp derivative. In addition, the zeta potentials of the DMAPA-Glyp/siRNA nanoparticles were higher than those of the DMAPA-Glyp/siRNA nanoparticles. As a result, siRNA was much more efficiently transferred into hRPE cells using the DMAPA-Glyp/siRNA nanoparticles rather than the DMAPA-Amp/siRNA nanoparticles. This led to significantly high levels of suppression on the expression levels of NF-κB p65 messenger RNA and protein in the cells transfected with DMAPA-Glyp/siRNA nanoparticles. This work provides a potential approach to promote hyperbranched polysaccharide derivatives as nonviral siRNA vectors for the inhibition of NF-κB activation in hRPE cells.
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Affiliation(s)
- Zhenzhen Liu
- Institute of Polymer Science, School of Chemistry and Chemical Engineering, Key Laboratory of Designed Synthesis and Application of Polymer Material, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Haijun Gong
- Department of Ophthalmology, Guangdong Provinci Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Rui Zeng
- Department of Ophthalmology, Guangdong Provinci Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Xuan Liang
- Institute of Polymer Science, School of Chemistry and Chemical Engineering, Key Laboratory of Designed Synthesis and Application of Polymer Material, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Li-Ming Zhang
- Institute of Polymer Science, School of Chemistry and Chemical Engineering, Key Laboratory of Designed Synthesis and Application of Polymer Material, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Liqun Yang
- Institute of Polymer Science, School of Chemistry and Chemical Engineering, Key Laboratory of Designed Synthesis and Application of Polymer Material, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Yuqing Lan
- Department of Ophthalmology, Guangdong Provinci Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
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Kirse C, Briesen H. Numerical solution of mixed continuous–discrete population balance models for depolymerization of branched polymers. Comput Chem Eng 2015. [DOI: 10.1016/j.compchemeng.2014.11.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Ciric J, Rolland-Sabaté A, Guilois S, Loos K. Characterization of enzymatically synthesized amylopectin analogs via asymmetrical flow field flow fractionation. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.09.059] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Wagner M, Barthel MJ, Freund RRA, Hoeppener S, Traeger A, Schacher FH, Schubert US. Solution self-assembly of poly(ethylene oxide)-block-poly(furfuryl glycidyl ether)-block-poly(allyl glycidyl ether) based triblock terpolymers: a field-flow fractionation study. Polym Chem 2014. [DOI: 10.1039/c4py00863d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Molecular characterisation of waxy corn and barley starches in different solvent systems as revealed by MALLS. Food Chem 2014; 152:297-9. [DOI: 10.1016/j.foodchem.2013.11.108] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2013] [Revised: 11/16/2013] [Accepted: 11/19/2013] [Indexed: 11/17/2022]
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Ciric J, Petrovic DM, Loos K. Polysaccharide Biocatalysis: From Synthesizing Carbohydrate Standards to Establishing Characterization Methods. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201300801] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Jelena Ciric
- Department of Polymer Chemistry & Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Dejan M. Petrovic
- Department of Polymer Chemistry & Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Katja Loos
- Department of Polymer Chemistry & Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747 AG Groningen The Netherlands
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Amylolysis of amylopectin and amylose isolated from wheat, triticale, corn and barley starches. Food Hydrocoll 2014. [DOI: 10.1016/j.foodhyd.2013.08.018] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Liang X, Ren X, Liu Z, Liu Y, Wang J, Wang J, Zhang LM, Deng DY, Quan D, Yang L. An efficient nonviral gene-delivery vector based on hyperbranched cationic glycogen derivatives. Int J Nanomedicine 2014; 9:419-35. [PMID: 24520193 PMCID: PMC3917921 DOI: 10.2147/ijn.s51919] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background The purpose of this study was to synthesize and evaluate hyperbranched cationic glycogen derivatives as an efficient nonviral gene-delivery vector. Methods A series of hyperbranched cationic glycogen derivatives conjugated with 3-(dimethylamino)-1-propylamine (DMAPA-Glyp) and 1-(2-aminoethyl) piperazine (AEPZ-Glyp) residues were synthesized and characterized by Fourier-transform infrared and hydrogen-1 nuclear magnetic resonance spectroscopy. Their buffer capacity was assessed by acid–base titration in aqueous NaCl solution. Plasmid deoxyribonucleic acid (pDNA) condensation ability and protection against DNase I degradation of the glycogen derivatives were assessed using agarose gel electrophoresis. The zeta potentials and particle sizes of the glycogen derivative/pDNA complexes were measured, and the images of the complexes were observed using atomic force microscopy. Blood compatibility and cytotoxicity were evaluated by hemolysis assay and MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) assay, respectively. pDNA transfection efficiency mediated by the cationic glycogen derivatives was evaluated by flow cytometry and fluorescence microscopy in the 293T (human embryonic kidney) and the CNE2 (human nasopharyngeal carcinoma) cell lines. In vivo delivery of pDNA in model animals (Sprague Dawley rats) was evaluated to identify the safety and transfection efficiency. Results The hyperbranched cationic glycogen derivatives conjugated with DMAPA and AEPZ residues were synthesized. They exhibited better blood compatibility and lower cytotoxicity when compared to branched polyethyleneimine (bPEI). They were able to bind and condense pDNA to form the complexes of 100–250 nm in size. The transfection efficiency of the DMAPA-Glyp/pDNA complexes was higher than those of the AEPZ-Glyp/pDNA complexes in both the 293T and CNE2 cells, and almost equal to those of bPEI. Furthermore, pDNA could be more safely delivered to the blood vessels in brain tissue of Sprague Dawley rats by the DMAPA-Glyp derivatives, and then expressed as green fluorescence protein, compared with the control group. Conclusion The hyperbranched cationic glycogen derivatives, especially the DMAPA-Glyp derivatives, showed high gene-transfection efficiency, good blood compatibility, and low cyto toxicity when transfected in vitro and in vivo, which are novel potential nonviral gene vectors.
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Affiliation(s)
- Xuan Liang
- Institute of Polymer Science, School of Chemistry and Chemical Engineering, Key Laboratory of Designed Synthesis and Application of Polymer Material, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Xianyue Ren
- Research Center of Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Zhenzhen Liu
- Institute of Polymer Science, School of Chemistry and Chemical Engineering, Key Laboratory of Designed Synthesis and Application of Polymer Material, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Yingliang Liu
- Institute of Polymer Science, School of Chemistry and Chemical Engineering, Key Laboratory of Designed Synthesis and Application of Polymer Material, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Jue Wang
- Research Center of Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Jingnan Wang
- Research Center of Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Li-Ming Zhang
- Institute of Polymer Science, School of Chemistry and Chemical Engineering, Key Laboratory of Designed Synthesis and Application of Polymer Material, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - David Yb Deng
- Research Center of Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Daping Quan
- Institute of Polymer Science, School of Chemistry and Chemical Engineering, Key Laboratory of Designed Synthesis and Application of Polymer Material, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Liqun Yang
- Institute of Polymer Science, School of Chemistry and Chemical Engineering, Key Laboratory of Designed Synthesis and Application of Polymer Material, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
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Gilbert RG, Sullivan MA. The Molecular Size Distribution of Glycogen and its Relevance to Diabetes. Aust J Chem 2014. [DOI: 10.1071/ch13573] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Glycogen is a highly branched polymer of glucose, functioning as a blood-glucose buffer. It comprises relatively small β-particles, which may be joined as larger aggregate α-particles. The size distributions from size-exclusion chromatography (SEC, also known as GPC) of liver glycogen from non-diabetic and diabetic mice show that diabetic mice have impaired α-particle formation, shedding new light on diabetes. SEC data also suggest the type of bonding holding β-particles together in α-particles. SEC characterisation of liver glycogen at various time points in a day/night cycle indicates that liver glycogen is initially synthesised as β-particles, and then joined by an unknown process to form α-particles. These α-particles are more resistant to degradation, presumably because of their lower surface area-to-volume ratio. These findings have important implications for new drug targets for diabetes management.
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Beilvert A, Chaubet F, Chaunier L, Guilois S, Pavon-Djavid G, Letourneur D, Meddahi-Pellé A, Lourdin D. Shape-memory starch for resorbable biomedical devices. Carbohydr Polym 2014; 99:242-8. [DOI: 10.1016/j.carbpol.2013.08.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 07/24/2013] [Accepted: 08/08/2013] [Indexed: 10/26/2022]
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Beilvert A, Faure F, Meddahi-Pellé A, Chaunier L, Guilois S, Chaubet F, Lourdin D, Bizeau A. A resorbable shape-memory starch-based stent for the treatment of salivary ducts under sialendoscopic surgery. Laryngoscope 2013; 124:875-81. [DOI: 10.1002/lary.24380] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 07/22/2013] [Accepted: 07/31/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Anne Beilvert
- INRA; UR1268, Unité Biopolymères Interactions et Assemblages Nantes, France
- European Sialendoscopy Training Center; Clinique Générale Beaulieu; Geneva Switzerland
| | - Frédéric Faure
- Département d'ORL et Chirurgie Cervico-Maxillo-Faciale; Hôpital Édouard Herriot; Lyon, France
- Bioengineering for Cardiovascular and Therapy Team; Université Paris 13; Sorbonne Paris Cité, INSERM, U698 Paris, France
- Institut Universitaire de Technologie de Saint-Denis; Saint-Denis, France
- Institut Galilée; Villetaneuse, France
- Hôpital Sainte Musse; Service d'ORL et de Chirurgie Cervico-Faciale Toulon France. European Sialendoscopy Training Center; Clinique Générale Beaulieu; Geneva Switzerland
| | - Anne Meddahi-Pellé
- Bioengineering for Cardiovascular and Therapy Team; Université Paris 13; Sorbonne Paris Cité, INSERM, U698 Paris, France
- Institut Universitaire de Technologie de Saint-Denis; Saint-Denis, France
- Institut Galilée; Villetaneuse, France
| | - Laurent Chaunier
- INRA; UR1268, Unité Biopolymères Interactions et Assemblages Nantes, France
| | - Sophie Guilois
- INRA; UR1268, Unité Biopolymères Interactions et Assemblages Nantes, France
| | | | - Denis Lourdin
- INRA; UR1268, Unité Biopolymères Interactions et Assemblages Nantes, France
| | - Alain Bizeau
- Hôpital Sainte Musse; Service d'ORL et de Chirurgie Cervico-Faciale Toulon France
- European Sialendoscopy Training Center; Clinique Générale Beaulieu; Geneva Switzerland
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Stojanović Ž, Jeremić K, Jovanović S. Molecular structure of carboxymethyl starch in dilute aqueous sodium chloride solutions. STARCH-STARKE 2013. [DOI: 10.1002/star.201200225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Željko Stojanović
- Henkel Srbija d.o.o.; Belgrade; Serbia
- Faculty of Technology and Metallurgy; University of Belgrade; Belgrade Serbia
| | - Katarina Jeremić
- Faculty of Technology and Metallurgy; University of Belgrade; Belgrade Serbia
| | - Slobodan Jovanović
- Faculty of Technology and Metallurgy; University of Belgrade; Belgrade Serbia
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Juna S, Hayden S, Damm M, Kappe CO, Huber A. Influence of temperature on the apparent molar masses and sizes of pregelatinized wx corn in aqueous media determined using asymmetrical flow field-flow fractionation. STARCH-STARKE 2013. [DOI: 10.1002/star.201300021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shazia Juna
- NAWI Graz-CePol/MC (Central Polymer Laboratory/Molecular Characteristics); Institute for Chemistry, Karl-Franzens University of Graz; Heinrichstrasse Graz Austria
| | - Stephan Hayden
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC); Institute for Chemistry, Karl-Franzens University; Heinrichstrasse Graz Austria
| | - Markus Damm
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC); Institute for Chemistry, Karl-Franzens University; Heinrichstrasse Graz Austria
| | - C. Oliver Kappe
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC); Institute for Chemistry, Karl-Franzens University; Heinrichstrasse Graz Austria
| | - Anton Huber
- NAWI Graz-CePol/MC (Central Polymer Laboratory/Molecular Characteristics); Institute for Chemistry, Karl-Franzens University of Graz; Heinrichstrasse Graz Austria
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Juna S, Huber A. Formation of nano- and micro-structures of various botanical sources of native starches investigated employing asymmetrical flow field-flow fractionation. STARCH-STARKE 2013. [DOI: 10.1002/star.201300059] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shazia Juna
- NAWI Graz-CePol/MC (Central Polymer Laboratory/Molecular Characteristics); Institute for Chemistry, Karl-Franzens University of Graz; Graz Austria
| | - Anton Huber
- NAWI Graz-CePol/MC (Central Polymer Laboratory/Molecular Characteristics); Institute for Chemistry, Karl-Franzens University of Graz; Graz Austria
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Characterization of hyperbranched glycopolymers produced in vitro using enzymes. Anal Bioanal Chem 2013; 406:1607-18. [DOI: 10.1007/s00216-013-7403-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 09/19/2013] [Accepted: 09/27/2013] [Indexed: 10/26/2022]
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