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Suo A, Fan G, Wu C, Li T, Li X, Zhou D, Cong K, Cheng X, Sun W. Efficient degradation and enhanced α-glucosidase inhibitory activity of apricot polysaccharides through non-thermal plasma assisted non-metallic Fenton reaction. Int J Biol Macromol 2024; 266:131103. [PMID: 38522683 DOI: 10.1016/j.ijbiomac.2024.131103] [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: 12/27/2023] [Revised: 03/13/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Dielectric barrier discharge (DBD) was a commonly used non-thermal plasma (CP) technology. This paper aimed to enhance the biological activity of apricot polysaccharides (AP) by using dielectric barrier discharge (DBD-CP) assisted H2O2-VC Fenton reaction for degradation. The degradation conditions were optimized through response surface methodology. The molecular weight (Mw) of degraded apricot polysaccharides (DAP) was 19.71 kDa, which was 7.25 % of AP. The inhibition rate of DAP (2 mg/mL) was 82.8 ± 3.27 %, which was 106.87 % higher than that of AP. DBD-CP/H2O2-VC degradation changed the monosaccharide composition of AP and improved the linearity of polysaccharide chains. In addition, a novel apricot polysaccharide DAP-2 with a Mw of only 6.60 kDa was isolated from DAP. The repeating units of the main chain of DAP-2 were →4)-α-D-GalpA-(1 →, the branch chain was mainly composed of α-D-GalpA-(1 → 2)-α-L-Rhap-(1→ connected to O-3 position →3,4)-α-D-GalpA-(1→. The complex structure formed by the combination of DAP-2 and α-glucosidase was stable. DAP-2 had a higher α-glucosidase binding ability than the acarbose. These results suggested that DAP-2 had the potential to be developed as a potential hypoglycemic functional food and drug.
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Affiliation(s)
- Andi Suo
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Gongjian Fan
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Caie Wu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China.
| | - Tingting Li
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Xiaojing Li
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Dandan Zhou
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Kaiping Cong
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Xin Cheng
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Wenjuan Sun
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
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2
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Leopold J, Prabutzki P, Nimptsch A, Schiller J. Mass spectrometric investigations of the action of hypochlorous acid on monomeric and oligomeric components of glycosaminoglycans. Biochem Biophys Rep 2023; 34:101448. [PMID: 36915825 PMCID: PMC10006533 DOI: 10.1016/j.bbrep.2023.101448] [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: 12/20/2022] [Revised: 02/15/2023] [Accepted: 02/23/2023] [Indexed: 03/06/2023] Open
Abstract
Hypochlorous acid (HOCl) is a strong non-radical oxidant, which is generated during inflammatory processes under the catalysis of the enzyme myeloperoxidase (MPO). HOCl reacts particularly with sulfhydryl and amino acid residues but affects also many other biomolecules. For instance, the glycosaminoglycans of articular cartilage and synovial fluids (such as hyaluronan) undergo degradation in the presence of HOCl at which the native polysaccharide is fragmented into oligosaccharides in a complex reaction. This is an initial mass spectrometry (MS)-based investigation dealing with the HOCl-induced degradation of glycosaminoglycans and the conversion of the related monosaccharides into chlorinated products. In particular, it will be shown that the reaction between HOCl and hyaluronan is slower than originally assumed and results in the generation of different products (particularly the hyaluronan monosaccharides) by the cleavage of the β-1,3/1,4-glycosidic linkages. The MS detection of chlorinated products is, however, only possible in the case of the monosaccharides. Potential reasons will be discussed.
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Affiliation(s)
- Jenny Leopold
- Institute for Medical Physics and Biophysics, Faculty of Medicine, University of Leipzig, Härtelstrasse 16-18, 04107, Leipzig, Germany
| | - Patricia Prabutzki
- Institute for Medical Physics and Biophysics, Faculty of Medicine, University of Leipzig, Härtelstrasse 16-18, 04107, Leipzig, Germany
| | - Ariane Nimptsch
- Institute for Medical Physics and Biophysics, Faculty of Medicine, University of Leipzig, Härtelstrasse 16-18, 04107, Leipzig, Germany
| | - Jürgen Schiller
- Institute for Medical Physics and Biophysics, Faculty of Medicine, University of Leipzig, Härtelstrasse 16-18, 04107, Leipzig, Germany
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3
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An Z, Zhang Z, Zhang X, Yang H, Lu H, Liu M, Shao Y, Zhao X, Zhang H. Oligosaccharide mapping analysis by HILIC-ESI-HCD-MS/MS for structural elucidation of fucoidan from sea cucumber Holothuria floridana. Carbohydr Polym 2022; 275:118694. [PMID: 34742421 DOI: 10.1016/j.carbpol.2021.118694] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/10/2021] [Accepted: 09/19/2021] [Indexed: 01/02/2023]
Abstract
The elucidation of precise structure of fucoidan is essential for understanding their structure-function relationship and promoting the development of marine drugs. In this work, we firstly reported the oligosaccharide mapping of fucoidan from Holothuria floridana using a combination of hydrothermal depolymerization, hydrophilic interaction liquid chromatography (HILIC) coupled with electrospray mass spectrometry (ESI-FTMS) and high energy collision-induced dissociation (HCD-MS/MS) and 2D NMR analysis. With careful selection of fully deprotonated molecular ions of fucoidan oligosaccharides and their NaBD4 reduced alditols, HILIC-ESI-HCD-MS/MS provided structurally relevant glycosidic product ions with no sulfate loss for definitive assignment of sequence and sulfation pattern of all the oligosaccharides and their isomers from dp2 to dp7 from hydrothermal depolymerization. The oligosaccharide mapping clarified the structure of fucoidan with various oligosaccharide domains with 2,4-di-O-sulfated and 2-O sulfated fucose residues.
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Affiliation(s)
- Zizhe An
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China
| | - Zhaohui Zhang
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China
| | - Xiaomei Zhang
- The Technology Center of Qingdao Customs, No. 83, Xinyue Road, Qingdao, Shandong Province 266109, PR China
| | - Huicheng Yang
- Zhejiang Marine Development Research Institute, No. 10, Lincheng Street, Zhoushan, Zhejiang Province 316021, PR China
| | - Haiyan Lu
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China
| | - Mengyang Liu
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China
| | - Ying Shao
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China
| | - Xue Zhao
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China.
| | - Hongwei Zhang
- The Technology Center of Qingdao Customs, No. 83, Xinyue Road, Qingdao, Shandong Province 266109, PR China.
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4
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Pepi LE, Sanderson P, Stickney M, Amster IJ. Developments in Mass Spectrometry for Glycosaminoglycan Analysis: A Review. Mol Cell Proteomics 2021; 20:100025. [PMID: 32938749 PMCID: PMC8724624 DOI: 10.1074/mcp.r120.002267] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 12/11/2022] Open
Abstract
This review covers recent developments in glycosaminoglycan (GAG) analysis via mass spectrometry (MS). GAGs participate in a variety of biological functions, including cellular communication, wound healing, and anticoagulation, and are important targets for structural characterization. GAGs exhibit a diverse range of structural features due to the variety of O- and N-sulfation modifications and uronic acid C-5 epimerization that can occur, making their analysis a challenging target. Mass spectrometry approaches to the structure assignment of GAGs have been widely investigated, and new methodologies remain the subject of development. Advances in sample preparation, tandem MS techniques (MS/MS), online separations, and automated analysis software have advanced the field of GAG analysis. These recent developments have led to remarkable improvements in the precision and time efficiency for the structural characterization of GAGs.
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Affiliation(s)
- Lauren E Pepi
- Department of Chemistry, University of Georgia, Athens, Georgia, USA
| | | | - Morgan Stickney
- Department of Chemistry, University of Georgia, Athens, Georgia, USA
| | - I Jonathan Amster
- Department of Chemistry, University of Georgia, Athens, Georgia, USA.
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Gerbin E, Frapart YM, Marcuello C, Cottyn B, Foulon L, Pernes M, Crônier D, Molinari M, Chabbert B, Ducrot PH, Baumberger S, Aguié-Béghin V, Kurek B. Dual Antioxidant Properties and Organic Radical Stabilization in Cellulose Nanocomposite Films Functionalized by In Situ Polymerization of Coniferyl Alcohol. Biomacromolecules 2020; 21:3163-3175. [DOI: 10.1021/acs.biomac.0c00583] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Elise Gerbin
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, 51097 Reims, France
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, CNRS, Université Paris-Saclay, 78000 Versailles, France
| | - Yves-Michel Frapart
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques—UMR CNRS 8601, Université de Paris, 75270 Paris, France
| | - Carlos Marcuello
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, 51097 Reims, France
| | - Betty Cottyn
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, CNRS, Université Paris-Saclay, 78000 Versailles, France
| | - Laurence Foulon
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, 51097 Reims, France
| | - Miguel Pernes
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, 51097 Reims, France
| | - David Crônier
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, 51097 Reims, France
| | - Michael Molinari
- CBMN UMR CNRS 5248, Université de Bordeaux, IPB, Pessac, 33600, France
| | - Brigitte Chabbert
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, 51097 Reims, France
| | - Paul-Henri Ducrot
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, CNRS, Université Paris-Saclay, 78000 Versailles, France
| | - Stéphanie Baumberger
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, CNRS, Université Paris-Saclay, 78000 Versailles, France
| | | | - Bernard Kurek
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, 51097 Reims, France
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Zhang N, Li G, Li S, Cai C, Zhang F, Linhardt RJ, Yu G. Mass spectrometric evidence for the mechanism of free-radical depolymerization of various types of glycosaminoglycans. Carbohydr Polym 2020; 233:115847. [PMID: 32059898 DOI: 10.1016/j.carbpol.2020.115847] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/03/2020] [Accepted: 01/08/2020] [Indexed: 12/14/2022]
Abstract
Glycosaminoglycans (GAGs) are large, complex carbohydrate molecules that interact with a wide range of proteins involved in physiological and pathological processes. Several naturally derived GAGs have emerged as potentially useful therapeutics in clinical applications. Natural polysaccharides, however, generally have high molecular weights with a degree of polydispersity, making it difficult to investigate their structural properties. In this study, we establish a free-radical-mediated micro-reaction system and use hydrophilic interaction chromatography (HILIC)-Fourier transform mass spectrometry (FTMS) to profile the degraded products of various types of GAGs, heparin, chondroitin sulfate A, NS-heparosan, and oversulfated chondroitin sulfate (OSCS), to reveal the free-radical degradation mechanism of GAGs. The results show that the bulk fragments of GAGs generated by free-radical degradation can maintain their basic structural units and sulfate substituents. In addition, an abundance of oligomers modified with oxidation at their reducing ends or by dehydration also appeared. We discovered that these modifications were related in terms of the degree of sulfation and the α- or β-linkage of HexNY (Y = SO3- or Ac), and especially that the different linkage of the disaccharide unit is the main factor in modification. In addition, the method based on micro-free-radical reaction and HILIC-FTMS is both effective and sensitive, thus suggesting its broad practical value for the structural characterization and in the biological structure-function studies of GAGs.
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Affiliation(s)
- Ning Zhang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, Ocean University of China, Qingdao, 266003, China
| | - Guoyun Li
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, Ocean University of China, Qingdao, 266003, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266003, China.
| | - Shijie Li
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, Ocean University of China, Qingdao, 266003, China
| | - Chao Cai
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, Ocean University of China, Qingdao, 266003, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266003, China
| | - Fuming Zhang
- Department of Chemistry and Chemical Biology, Biomedical Engineering, Biology, Chemical and Biological Engineering, and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Robert J Linhardt
- Department of Chemistry and Chemical Biology, Biomedical Engineering, Biology, Chemical and Biological Engineering, and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Guangli Yu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, Ocean University of China, Qingdao, 266003, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266003, China
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7
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Lin L, Yu Y, Zhang F, Xia K, Zhang X, Linhardt RJ. Bottom-up and top-down profiling of pentosan polysulfate. Analyst 2019; 144:4781-4786. [PMID: 31287456 PMCID: PMC6682433 DOI: 10.1039/c9an01006h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Pentosan polysulfate (PPS) is a semi-synthetic glycosaminoglycan (GAG) mimetic. PPS, synthesized through the chemical sulfonation of a plant-derived β-(1 → 4)-xylan, is the active pharmaceutical ingredient of the drug Elmiron™ used to treat interstitial cystitis. Unlike natural GAGs that can be enzymatically broken down into oligosaccharides for analysis, PPS is an unnatural polyanionic polysaccharide and is not amenable to such an analytical approach. Instead reactive oxygen species were used for the controlled depolymerization of PPS and the resulting oligosaccharide fragments were then analyzed by liquid chromatography-mass spectrometry (LC-MS) to obtain bottom-up information on its composition. Because PPS has an average molecular weight ranging from 4000 to 6000 Da, similar to that of low molecular weight heparin, this suggested that it might be possible to use LC-MS on its intact chains and perform top-down analysis. The bottom-up and top-down analysis of PPS provides the first detailed compositional and structural information on PPS. Finally, we examined whether PPS would interfere with polysaccharide lyases and hydrolases, used in the analysis of natural GAGs such as chondroitin sulfates, heparan sulfate, and keratan sulfates. We found that PPS did not interfere with GAG analysis, suggesting that a combination of chemical and enzymatic treatment could be used to analyze samples containing both natural GAGs and PPS.
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Affiliation(s)
- Lei Lin
- School of Environment, Nanjing Normal University, Wenyuan Road 1, Nanjing 210023, China
| | - Yanlei Yu
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies. Rensselaer Polytechnic Institute, Troy New York, 12180, USA
| | - Fuming Zhang
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy New York, 12180, USA
| | - Ke Xia
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies. Rensselaer Polytechnic Institute, Troy New York, 12180, USA
| | - Xing Zhang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Wenyuan Road 1, Nanjing 210023, China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, P R China
| | - Robert J Linhardt
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies. Rensselaer Polytechnic Institute, Troy New York, 12180, USA
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy New York, 12180, USA
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8
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The mechanism for cleavage of three typical glucosidic bonds induced by hydroxyl free radical. Carbohydr Polym 2017; 178:34-40. [DOI: 10.1016/j.carbpol.2017.09.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 09/04/2017] [Accepted: 09/06/2017] [Indexed: 01/16/2023]
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9
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Boulos S, Nyström L. Complementary Sample Preparation Strategies for Analysis of Cereal β-Glucan Oxidation Products by UPLC-MS/MS. Front Chem 2017; 5:90. [PMID: 29164106 PMCID: PMC5673685 DOI: 10.3389/fchem.2017.00090] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 10/17/2017] [Indexed: 11/18/2022] Open
Abstract
The oxidation of cereal (1→3,1→4)-β-D-glucan can influence the health promoting and technological properties of this linear, soluble homopolysaccharide by introduction of new functional groups or chain scission. Apart from deliberate oxidative modifications, oxidation of β-glucan can already occur during processing and storage, which is mediated by hydroxyl radicals (HO•) formed by the Fenton reaction. We present four complementary sample preparation strategies to investigate oat and barley β-glucan oxidation products by hydrophilic interaction ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), employing selective enzymatic digestion, graphitized carbon solid phase extraction (SPE), and functional group labeling techniques. The combination of these methods allows for detection of both lytic (C1, C3/4, C5) and non-lytic (C2, C4/3, C6) oxidation products resulting from HO•-attack at different glucose-carbons. By treating oxidized β-glucan with lichenase and β-glucosidase, only oxidized parts of the polymer remained in oligomeric form, which could be separated by SPE from the vast majority of non-oxidized glucose units. This allowed for the detection of oligomers with mid-chain glucuronic acids (C6) and carbonyls, as well as carbonyls at the non-reducing end from lytic C3/C4 oxidation. Neutral reducing ends were detected by reductive amination with anthranilic acid/amide as labeled glucose and cross-ring cleaved units (arabinose, erythrose) after enzyme treatment and SPE. New acidic chain termini were observed by carbodiimide-mediated amidation of carboxylic acids as anilides of gluconic, arabinonic, and erythronic acids. Hence, a full characterization of all types of oxidation products was possible by combining complementary sample preparation strategies. Differences in fine structure depending on source (oat vs. barley) translates to the ratio of observed oxidized oligomers, with in-depth analysis corroborating a random HO•-attack on glucose units irrespective of glycosidic linkage and neighborhood. The method was demonstrated to be (1) sufficiently sensitive to allow for the analysis of oxidation products also from a mild ascorbate-driven Fenton reaction, and (2) to be specific for cereal β-glucan even in the presence of other co-oxidized polysaccharides. This opens doors to applications in food processing to assess potential oxidations and provides the detailed structural basis to understand the effect oxidized functional groups have on β-glucan's health promoting and technological properties.
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Affiliation(s)
| | - Laura Nyström
- Institute of Food, Nutrition and Health, ETH Zurich, Zurich, Switzerland
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10
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Čožíková D, Šílová T, Moravcová V, Šmejkalová D, Pepeliaev S, Velebný V, Hermannová M. Preparation and extensive characterization of hyaluronan with narrow molecular weight distribution. Carbohydr Polym 2017; 160:134-142. [DOI: 10.1016/j.carbpol.2016.12.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 12/06/2016] [Accepted: 12/18/2016] [Indexed: 10/20/2022]
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11
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Boulos S, Nyström L. UPLC-MS/MS investigation of β-glucan oligosaccharide oxidation. Analyst 2016; 141:6533-6548. [DOI: 10.1039/c6an01125j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fenton-induced degradation of isomeric β-d-glucotetraoses is systematically investigated by negative mode HILIC UPLC-MS/MS with regard to the effect of the glycosidic linkage on kinetics, product profiles, and MS/MS fragmentation patterns.
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Affiliation(s)
- Samy Boulos
- ETH Zurich
- Institute of Food
- Nutrition and Health
- 8092 Zurich
- Switzerland
| | - Laura Nyström
- ETH Zurich
- Institute of Food
- Nutrition and Health
- 8092 Zurich
- Switzerland
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12
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Li G, Li L, Xue C, Middleton D, Linhardt RJ, Avci FY. Profiling pneumococcal type 3-derived oligosaccharides by high resolution liquid chromatography-tandem mass spectrometry. J Chromatogr A 2015; 1397:43-51. [PMID: 25913329 DOI: 10.1016/j.chroma.2015.04.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 04/02/2015] [Accepted: 04/04/2015] [Indexed: 02/02/2023]
Abstract
Pneumococcal type-3 polysaccharide (Pn3P) is considered a major target for the development of a human vaccine to protect against Streptococcus pneumoniae infection. Thus, it is critical to develop methods for the preparation and analysis of Pn3P-derived oligosaccharides to better understand its immunological properties. In this paper, we profile oligosaccharides, generated by the free radical depolymerization of Pn3P, using liquid chromatography (LC)-tandem mass spectrometry (MS/MS). Hydrophilic liquid interaction chromatography (HILIC)-mass spectrometry (MS) revealed a series of oligosaccharides with an even- and odd-number of saccharide residues, ranging from monosaccharide, degree of polymerization (dp1) to large oligosaccharides up to dp 20, generated by free radical depolymerization. Isomers of oligosaccharides with an even number of sugar residues were easily separated on a HILIC column, and their sequences could be distinguished by comparing MS/MS of these oligosaccharides and their reduced alditols. Fluorescent labeling with 2-aminoacridone (AMAC) followed by reversed phase (RP)-LC-MS/MS was applied to analyze and sequence poorly separated product mixtures, as RP-LC affords higher resolution of AMAC-labeled oligosaccharides than does HILIC-based separation. The present methodology can be potentially applied to profiling other capsular polysaccharides.
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Affiliation(s)
- Guoyun Li
- College of Food Science and Technology, Ocean University of China, Qingdao, Shandong 266003, China; Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Lingyun Li
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Changhu Xue
- College of Food Science and Technology, Ocean University of China, Qingdao, Shandong 266003, China
| | - Dustin Middleton
- Department of Biochemistry and Molecular Biology, Center for Molecular Medicine, and Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA
| | - Robert J Linhardt
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Department of Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
| | - Fikri Y Avci
- Department of Biochemistry and Molecular Biology, Center for Molecular Medicine, and Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA.
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13
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Parsons BJ. Oxidation of glycosaminoglycans by free radicals and reactive oxidative species: A review of investigative methods. Free Radic Res 2015; 49:618-32. [PMID: 25410647 DOI: 10.3109/10715762.2014.985220] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Glycosaminoglycans, in particular hyaluronan (HA), and proteoglycans are components of the extracellular matrix (ECM). The ECM plays a key role in the regulation of cellular behaviour and alterations to it can modulate both the development of human diseases as well as controlling normal biochemical processes such as cell signalling and pro-inflammatory responses. For these reasons, in vitro fragmentation studies of glycosaminoglycans by free radicals and oxidative species are seen to be relevant to the understanding of in vivo studies of damage to the ECM. A wide range of investigative techniques have therefore been applied to gain insights into the relative fragmentation effects of several reactive oxidative species with the ultimate goal of determining mechanisms of fragmentation at the molecular level. These methods are reviewed here.
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Affiliation(s)
- B J Parsons
- Health and Social Sciences, Leeds Beckett University , Leeds , UK
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Burg A, Shusterman I, Kornweitz H, Meyerstein D. Three H2O2 molecules are involved in the “Fenton-like” reaction between Co(H2O)62+ and H2O2. Dalton Trans 2014; 43:9111-5. [DOI: 10.1039/c4dt00401a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Li D, Chi L, Jin L, Xu X, Du X, Ji S, Chi L. Mapping of low molecular weight heparins using reversed phase ion pair liquid chromatography–mass spectrometry. Carbohydr Polym 2014; 99:339-44. [DOI: 10.1016/j.carbpol.2013.08.074] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Revised: 08/18/2013] [Accepted: 08/23/2013] [Indexed: 01/27/2023]
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16
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Li G, Cai C, Li L, Fu L, Chang Y, Zhang F, Toida T, Xue C, Linhardt RJ. Method to detect contaminants in heparin using radical depolymerization and liquid chromatography-mass spectrometry. Anal Chem 2013; 86:326-30. [PMID: 24364596 DOI: 10.1021/ac403625a] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Heparin is a critically important anticoagulant drug that was contaminated with a persulfonated polysaccharide in 2008, resulting in a number of severe adverse reactions, some leading to death. Controversy remains as to the precise composition of the 2008 contaminant, and new information suggests that heparin may now be subject to adulteration with a new, difficult to detect, contaminant, N-sulfo oversulfated chondroitin sulfate. This study synthesizes this new potential contaminant and describes the use of radical depolymerization followed by liquid chromatography-mass spectrometry to detect N-sulfo oversulfated chondroitin sulfate and to confirm the structure of the 2008 contaminant as oversulfated chondroitin sulfate and not oversulfated heparan sulfate.
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Affiliation(s)
- Guoyun Li
- College of Food Science and Technology, Ocean University of China , Qingdao, Shandong 266003, China
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