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Yuan Q, Liu W, Hao W, Chen Y, Xiao Y, Li H, Shui M, Wu DT, Wang S. Glycosidic linkages of fungus polysaccharides influence the anti-inflammatory activity in mice. J Adv Res 2024:S2090-1232(24)00050-X. [PMID: 38309691 DOI: 10.1016/j.jare.2024.01.037] [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: 11/01/2023] [Revised: 01/31/2024] [Accepted: 01/31/2024] [Indexed: 02/05/2024] Open
Abstract
INTRODUCTION Over decades, the source-function relationships of bioactive polysaccharides have been progressively investigated, however, it is still unclear how a defined structure may conduce to the bioactivities of polysaccharides. OBJECTIVES To explore the structure-function relationship of fungus polysaccharides, we employed a dextran sulfate sodium (DSS)-induced colitis mouse model to compare the anti-inflammatory activity of two fungus polysaccharides from Dictyophora indusiata (DIP) and Tremella fuciformis (TFP), which exhibit distinct glycosidic linkages. METHODS The structures of DIP and TFP were characterized through molecular weight detection, molecular morphology analysis, methylation analysis, and NMR analysis. Subsequently, we employed a DSS-induced colitis model to assess the anti-inflammatory efficacy of DIP and TFP. The colitis symptoms, histological morphology, intestinal inflammatory cytokines, and the composition and function of gut microbiota before and after polysaccharides treatment in colitis mice were also investigated. RESULTS DIP, l,3-β-D-glucan with 1,4-β and 1,6-β-D-Glcp as branched chains, exhibited superior therapeutic effect than that of TFP consisted of a linear 1,3-α-D-mannose backbone with D-xylose and L-fucose in the side chains. Both DIP and TFP relieved DSS-induced colitis in a gut microbiota-dependent manner. Furthermore, metagenomics showed that DIP and TFP could partially reverse the bacterial function in colitis mice. Glycoside Hydrolase 1 (GH1) and GH3 were identified as being involved in hydrolyzing the glucose linkages in DIP, while GH92 and GH29 were predicted to be active in cleaving the α-1,3-linked mannose linkages and the glycosidic bonds of L-fucose residues in TFP. CONCLUSION Our findings highlight the pivotal role of glycosidic linkages in anti-inflammatory activities of fungus polysaccharides and would promote the design and discovery of polysaccharides with designated activity to be used as functional foods and/or therapeutics.
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Affiliation(s)
- Qin Yuan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China; Macao Centre for Research and Development in Chinese Medicine, University of Macau, Macau, China
| | - Wen Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China; Macao Centre for Research and Development in Chinese Medicine, University of Macau, Macau, China
| | - Wei Hao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China; Macao Centre for Research and Development in Chinese Medicine, University of Macau, Macau, China
| | - Yi Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China; Macao Centre for Research and Development in Chinese Medicine, University of Macau, Macau, China
| | - Yaqin Xiao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Hongyi Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Mingju Shui
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Ding-Tao Wu
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industralization, Chengdu University, Chengdu 610106, China; Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
| | - Shengpeng Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China; Macao Centre for Research and Development in Chinese Medicine, University of Macau, Macau, China.
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Reis MBE, Maximo AI, Magno JM, de Lima Bellan D, Buzzo JLA, Simas FF, Rocha HAO, da Silva Trindade E, Camargo de Oliveira C. A Fucose-Containing Sulfated Polysaccharide from Spatoglossum schröederi Potentially Targets Tumor Growth Rather Than Cytotoxicity: Distinguishing Action on Human Melanoma Cell Lines. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024; 26:181-198. [PMID: 38273163 DOI: 10.1007/s10126-024-10287-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 01/08/2024] [Indexed: 01/27/2024]
Abstract
Natural substances are strategic candidates for drug development in cancer research. Marine-derived molecules are of special interest due to their wide range of biological activities and sustainable large-scale production. Melanoma is a type of skin cancer that originates from genetic mutations in melanocytes. BRAF, RAS, and NF1 mutations are described as the major melanoma drivers, but approximately 20% of patients lack these mutations and are included in the triple wild-type (tripleWT) classification. Recent advances in targeted therapy directed at driver mutations along with immunotherapy have only partially improved patients' overall survival, and consequently, melanoma remains deadly when in advanced stages. Fucose-containing sulfated polysaccharides (FCSP) are potential candidates to treat melanoma; therefore, we investigated Fucan A, a FCSP from Spatoglossum schröederi brown seaweed, in vitro in human melanoma cell lines presenting different mutations. Up to 72 h Fucan A treatment was not cytotoxic either to normal melanocytes or melanoma cell lines. Interestingly, it was able to impair the tripleWT CHL-1 cell proliferation (57%), comparable to the chemotherapeutic cytotoxic drug cisplatin results, with the advantage of not causing cytotoxicity. Fucan A increased CHL-1 doubling time, an effect attributed to cell cycle arrest. Vascular mimicry, a close related angiogenesis process, was also impaired (73%). Fucan A mode of action could be related to gene expression modulation, in special β-catenin downregulation, a molecule with protagonist roles in important signaling pathways. Taken together, results indicate that Fucan A is a potential anticancer molecule and, therefore, deserves further investigation.
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Affiliation(s)
- Maíra Barbosa E Reis
- Cell Biology Department, Universidade Federal Do Paraná (UFPR), Curitiba, Paraná, Brazil
| | | | - Jessica Maria Magno
- Cell Biology Department, Universidade Federal Do Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Daniel de Lima Bellan
- Cell Biology Department, Universidade Federal Do Paraná (UFPR), Curitiba, Paraná, Brazil
| | | | | | - Hugo Alexandre Oliveira Rocha
- Biochemistry Department, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil
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Oliveira NMT, Dos Santos AE, Corso CR, Galindo CM, Adami ER, da Silva LCM, de Lima LTF, de Santana Filho AP, Dittrich RL, Klassen G, de Souza Ramos EA, Sassaki GL, Acco A. Chemical characterization and antineoplastic effect of oligosaccharides from Cabernet Franc red wine in mammary tumor model in mice. J Nutr Biochem 2023; 113:109253. [PMID: 36565967 DOI: 10.1016/j.jnutbio.2022.109253] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 12/10/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
The present study characterized oligosaccharide compounds (Oligo) in Cabernet Franc red wine and investigated its antineoplastic effects against mammary tumor cells in vivo and in vitro, isolated or in combination with chemotherapy. The Oligo fraction was characterized by nuclear magnetic resonance spectroscopy and mass spectrometry. The complex mixture of Oligo showed high amounts of oligoxyloglucuronans, oligorhamnogalacturonans, oligoarabinogalactans, and oligoglucans, such as trehalose and isomaltotriose. To investigate the antineoplastic effects of Oligo, Female Swiss mice were subcutaneously inoculated with Ehrlich tumor cells and then received vehicle (distilled water, p.o.), Oligo solution (9, 35, or 70 mg/kg, p.o.), or methotrexate (1.5 mg/kg, i.p.). The treatments were administered in a conventional (21-d) or chemopreventive (42-d) protocol. Oligo reduced the growth of Ehrlich tumors in both protocols and increased the effectiveness of methotrexate in controlling tumor growth. Oligo did not reduce the viability of MCF-7, MDA-MB-231, MDA-MB-436, and HB4a human breast cells that were cultured for 48 h, showing no cytotoxicity. Overall, Oligo exerted an in vivo antineoplastic effect and modulated immune blood cells, dependent on treatment time, and was not directly cytotoxic to tumor cells. Thus, Oligo may indirectly regulate tumor cell development and may be a promising drug for cancer therapy in combination with methotrexate.
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Affiliation(s)
| | - André Eduardo Dos Santos
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Claudia Rita Corso
- Department of Pharmacology, Federal University of Paraná, Curitiba, PR, Brazil
| | | | | | | | | | | | | | - Giseli Klassen
- Department of Basic Pathology, Federal University of Parana, Curitiba, PR, Brazil
| | | | - Guilherme Lanzi Sassaki
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, PR, Brazil.
| | - Alexandra Acco
- Department of Pharmacology, Federal University of Paraná, Curitiba, PR, Brazil.
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Singthong J, Oonsivilai R. Structural and Rheological Properties of Yanang Gum ( Tiliacora triandra). Foods 2022; 11:foods11142003. [PMID: 35885245 PMCID: PMC9318891 DOI: 10.3390/foods11142003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/28/2022] [Accepted: 07/03/2022] [Indexed: 12/10/2022] Open
Abstract
Plant polysaccharides are used in the food industry to improve the texture and stability of food. The viscosity of polysaccharides, which includes both thickening and gelling, is an important characteristic. Yanang, Tilaicora triandra (Colebr.) Diels., composed of polysaccharide gum in its leaves. In this research, Yanang gum’s structural and rheological properties were investigated. The gum’s structure is xylan, with a backbone made up mostly of mixed (1,3)- and (1,4)-D-xylan. The average molecular weight of Yanang gum is 3819 kDa, with a gyration radius of 120.4 nm and an intrinsic viscosity of 14.6 dL/g. The power-law model was found to be the best fit for Yanang gum flow curves. The consistency coefficient, k, increases significantly with concentration in both the forward and the reverse measurements, whereas the flow behavior index, n, decreased as concentration increased. Yanang gum exhibited shear-thinning flow behavior. Increasing the concentration results in heightened G′ and G″, and the cross-over point shifts toward lower frequencies. The results of this study show that Yanang gum may be beneficial as other natural gums for food products.
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Affiliation(s)
- Jittra Singthong
- Department of Agro-Industry, Faculty of Agriculture, Ubon Ratchathani University, Warinchamrap, Ubon Ratchathani 34190, Thailand;
| | - Ratchadaporn Oonsivilai
- Health and Wellness Research Group, School of Food Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
- Correspondence:
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Antiproliferative xylan from corn cobs induces apoptosis in tumor cells. Carbohydr Polym 2019; 210:245-253. [DOI: 10.1016/j.carbpol.2019.01.073] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 01/01/2019] [Accepted: 01/21/2019] [Indexed: 01/23/2023]
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Bashir M, Usmani T, Haripriya S, Ahmed T. Biological and textural properties of underutilized exudate gums of Jammu and Kashmir, India. Int J Biol Macromol 2018; 109:847-854. [DOI: 10.1016/j.ijbiomac.2017.11.052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 11/08/2017] [Accepted: 11/09/2017] [Indexed: 10/18/2022]
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Bouaziz F, Koubaa M, Ellouz Ghorbel R, Ellouz Chaabouni S. Biological properties of water-soluble polysaccharides and hemicelluloses from almond gum. Int J Biol Macromol 2017; 95:667-674. [DOI: 10.1016/j.ijbiomac.2016.11.104] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 11/05/2016] [Accepted: 11/27/2016] [Indexed: 11/15/2022]
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8
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Fathi M, Mohebbi M, Koocheki A. Introducing Prunus cerasus gum exudates: Chemical structure, molecular weight, and rheological properties. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.07.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Bouaziz F, Koubaa M, Ben Jeddou K, Kallel F, Boisset Helbert C, Khelfa A, Ellouz Ghorbel R, Ellouz Chaabouni S. Water-soluble polysaccharides and hemicelluloses from almond gum: Functional and prebiotic properties. Int J Biol Macromol 2016; 93:359-368. [DOI: 10.1016/j.ijbiomac.2016.08.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 07/26/2016] [Accepted: 08/10/2016] [Indexed: 12/19/2022]
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Vinnitskiy DZ, Ustyuzhanina NE, Nifantiev NE. Natural bacterial and plant biomolecules bearing α-d-glucuronic acid residues. Russ Chem Bull 2016. [DOI: 10.1007/s11172-015-1010-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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11
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Scoparo CT, Souza LM, Dartora N, Sassaki GL, Santana-Filho AP, Werner MFP, Borato DG, Baggio CH, Iacomini M. Chemical characterization of heteropolysaccharides from green and black teas (Camellia sinensis) and their anti-ulcer effect. Int J Biol Macromol 2016; 86:772-81. [PMID: 26861826 DOI: 10.1016/j.ijbiomac.2016.02.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 02/02/2016] [Accepted: 02/04/2016] [Indexed: 01/18/2023]
Abstract
In order to obtain polysaccharides from green and black teas (Camellia sinensis), commercial leaves were submitted to infusion and then to alkaline extraction. The extracts were fractionated by freeze-thawing process, giving insoluble and soluble fractions. Complex arabinogalactan protein from the soluble fractions of both teas (GTPS and BTPS) were determined by methylation analysis and (1)H/(13)C-HSQC spectroscopy, showing a main chain of (1→3)-β-Galp, substituted at O-6 by (1→6)-linked β-Galp with side chains of α-Araf and terminal units of α-Araf, α-Fucp and α-Rhap. A highly branched heteroxylan from the insoluble fractions (GTPI and BTPI) showed in methylation analysis and (1)H/(13)C-HSQC spectroscopy the main chain of (1→4)-β-Xylp, substituted in O-3 by α-Araf, β-Galp and α-Glcp units. Evaluating their gastroprotective activity, the fractions containing the soluble heteropolysaccharides from green (GTPS) and black teas (BTPS) reduced the gastric lesions induced by ethanol. Furthermore, the fraction of insoluble heteropolysaccharides of green (GTPI) and black (BTPI) teas also protected the gastric mucosa. In addition, the maintenance of gastric mucus and reduced glutathione (GSH) levels was involved in the polysaccharides gastroprotection.
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Affiliation(s)
- Camila T Scoparo
- Department of Biochemistry and Molecular Biology, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR, Brazil
| | - Lauro M Souza
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdade Pequeno Príncipe, Curitiba, PR, Brazil
| | - Nessana Dartora
- Department of Biology, Sector of Biological Sciences, State University of Centro-Oeste, Guarapuava, PR, Brazil
| | - Guilherme L Sassaki
- Department of Biochemistry and Molecular Biology, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR, Brazil
| | - Arquimedes P Santana-Filho
- Department of Biochemistry and Molecular Biology, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR, Brazil
| | - Maria Fernanda P Werner
- Department of Pharmacology, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR, Brazil
| | - Débora G Borato
- Department of Pharmacology, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR, Brazil
| | - Cristiane H Baggio
- Department of Pharmacology, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR, Brazil.
| | - Marcello Iacomini
- Department of Biochemistry and Molecular Biology, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR, Brazil.
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Cornelsen PA, Quintanilha RC, Vidotti M, Gorin PA, Simas-Tosin FF, Riegel-Vidotti IC. Native and structurally modified gum arabic: Exploring the effect of the gum's microstructure in obtaining electroactive nanoparticles. Carbohydr Polym 2015; 119:35-43. [DOI: 10.1016/j.carbpol.2014.11.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 11/02/2014] [Accepted: 11/03/2014] [Indexed: 10/24/2022]
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13
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Simas-Tosin FF, Barraza RR, Maria-Ferreira D, Werner MFDP, Baggio CH, Wagner R, Smiderle FR, Carbonero ER, Sassaki GL, Iacomini M, Gorin PAJ. Glucuronoarabinoxylan from coconut palm gum exudate: chemical structure and gastroprotective effect. Carbohydr Polym 2014; 107:65-71. [PMID: 24702919 DOI: 10.1016/j.carbpol.2014.02.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 02/06/2014] [Accepted: 02/07/2014] [Indexed: 10/25/2022]
Abstract
A glucuronoarabinoxylan (CNAL) was extracted with 1% aq. KOH (25°C) from Cocos nucifera gum exudate. It had a homogeneous profile on HPSEC-MALLS-RI (Mw 4.6 × 10(4)g/mol) and was composed of Fuc, Ara, Xyl, GlcpA (and 4-O-GlcpA) in a 7:28:62:3 molar ratio. Methylation data showed a branched structure with 39% of non-reducing end units, 3-O-substituted Araf (8%), 3,4-di-O- (15%), 2,4-di-O- (5%) and 2,3,4-tri-O-substituted Xylp units (17%). The anomeric region of CNAL (13)C NMR spectrum contained 9 signals, indicating a complex structure. The main chain of CNAL was characterized by analysis of a Smith-degraded polysaccharide. Its (13)C NMR spectrum showed 5 main signals at δ 101.6, δ 75.5, δ 73.9, δ 72.5, and δ 63.1 that were attributed to C-1, C-4, C-3, C-2 and C-5 of (1→4)-linked β-Xylp-main chain units, respectively. CNAL exhibited gastroprotective effect, by reducing gastric hemorrhagic lesions, when orally administered (1 and 3mg/kg) to rats prior to ethanol administration.
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Affiliation(s)
- Fernanda F Simas-Tosin
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, CP 19046, CEP 81531-990 Curitiba, PR, Brazil
| | - Ruth R Barraza
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, CP 19046, CEP 81531-990 Curitiba, PR, Brazil
| | - Daniele Maria-Ferreira
- Departamento de Farmacologia, Universidade Federal do Paraná, CP 19046, CEP 81531-990 Curitiba, PR, Brazil
| | - Maria Fernanda de P Werner
- Departamento de Farmacologia, Universidade Federal do Paraná, CP 19046, CEP 81531-990 Curitiba, PR, Brazil
| | - Cristiane H Baggio
- Departamento de Farmacologia, Universidade Federal do Paraná, CP 19046, CEP 81531-990 Curitiba, PR, Brazil
| | - Ricardo Wagner
- Departamento de Medicina Forense e Psiquiatria, Universidade Federal do Paraná, CP 19046, CEP 81531-990 Curitiba, PR, Brazil
| | - Fhernanda R Smiderle
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, CP 19046, CEP 81531-990 Curitiba, PR, Brazil
| | - Elaine R Carbonero
- Departamento de Química, Universidade Federal de Goiás, CEP 75702-040 Catalão, GO, Brazil
| | - Guilherme L Sassaki
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, CP 19046, CEP 81531-990 Curitiba, PR, Brazil
| | - Marcello Iacomini
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, CP 19046, CEP 81531-990 Curitiba, PR, Brazil.
| | - Philip A J Gorin
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, CP 19046, CEP 81531-990 Curitiba, PR, Brazil.
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Structural characterization of a glucuronoarabinoxylan from pineapple (Ananas comosus (L.) Merrill) gum exudate. Carbohydr Polym 2013; 94:704-11. [DOI: 10.1016/j.carbpol.2012.12.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 12/03/2012] [Accepted: 12/22/2012] [Indexed: 11/23/2022]
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15
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Goo BG, Baek G, Choi DJ, Park YI, Synytsya A, Bleha R, Seong DH, Lee CG, Park JK. Characterization of a renewable extracellular polysaccharide from defatted microalgae Dunaliella tertiolecta. BIORESOURCE TECHNOLOGY 2013; 129:343-50. [PMID: 23262010 DOI: 10.1016/j.biortech.2012.11.077] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Revised: 11/12/2012] [Accepted: 11/19/2012] [Indexed: 05/10/2023]
Abstract
Extracellular polysaccharide (EPS) was isolated from defatted micro-algae Dunaliela tertiolecta and defined as linear (1→4)-α-D-glucan based on monosaccharide composition, enzymatic and spectroscopic analyses. Optimization and characterization of acidic and enzymatic hydrolyses of EPS have been performed for its potential use as a renewable biorefinery material. The hydrolytic methods were improved to assess the effect of substrate specificity, reaction time, pH, ionic strength and temperature on efficiency of glucose production. EPS was effectively converted into glucose within one-step enzymatic or acidic hydrolysis under optimized conditions. Over 90% recovery of glucose was achieved for both hydrolytic approaches. High potential production of EPS and high yield conversion of this substrate to glucose may allow further exploration of microalga D. tertiolecta as a potential biomass producer for biotechnological and industrial exploitation of bioethanol.
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Affiliation(s)
- Bon Geun Goo
- Department of Biotechnology, The Catholic University of Korea, Bucheon 420-743, Republic of Korea
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Grein A, da Silva BC, Wendel CF, Tischer CA, Sierakowski MR, Moura ABD, Iacomini M, Gorin PA, Simas-Tosin FF, Riegel-Vidotti IC. Structural characterization and emulsifying properties of polysaccharides of Acacia mearnsii de Wild gum. Carbohydr Polym 2013; 92:312-20. [DOI: 10.1016/j.carbpol.2012.09.041] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 07/22/2012] [Accepted: 09/22/2012] [Indexed: 11/30/2022]
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Togashi H, Kato A, Shimizu K. Enzymatically derived aldouronic acids from Eucalyptus globulus glucuronoxylan. Carbohydr Polym 2009. [DOI: 10.1016/j.carbpol.2009.03.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Wu M, Wu Y, Zhou J, Pan Y. Structural characterisation of a water-soluble polysaccharide with high branches from the leaves of Taxus chinensis var. mairei. Food Chem 2009. [DOI: 10.1016/j.foodchem.2008.08.055] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2003-2004. MASS SPECTROMETRY REVIEWS 2009; 28:273-361. [PMID: 18825656 PMCID: PMC7168468 DOI: 10.1002/mas.20192] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2008] [Revised: 07/07/2008] [Accepted: 07/07/2008] [Indexed: 05/13/2023]
Abstract
This review is the third update of the original review, published in 1999, on the application of matrix-assisted laser desorption/ionization (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings the topic to the end of 2004. Both fundamental studies and applications are covered. The main topics include methodological developments, matrices, fragmentation of carbohydrates and applications to large polymeric carbohydrates from plants, glycans from glycoproteins and those from various glycolipids. Other topics include the use of MALDI MS to study enzymes related to carbohydrate biosynthesis and degradation, its use in industrial processes, particularly biopharmaceuticals and its use to monitor products of chemical synthesis where glycodendrimers and carbohydrate-protein complexes are highlighted.
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Affiliation(s)
- David J Harvey
- Department of Biochemistry, Oxford Glycobiology Institute, University of Oxford, Oxford OX1 3QU, UK.
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Structures of aldouronic acids liberated from kenaf xylan by endoxylanases from Streptomyces sp. Carbohydr Polym 2009. [DOI: 10.1016/j.carbpol.2008.08.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wu Y, Sun H, Qin F, Pan Y, Sun C. Effect of various extracts and a polysaccharide from the edible mycelia ofCordyceps sinensis on cellular and humoral immune response against ovalbumin in mice. Phytother Res 2006; 20:646-52. [PMID: 16691546 DOI: 10.1002/ptr.1921] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In this study, the edible mycelia of Cordyceps sinensis (Berk.) Sacc. were sequentially extracted by petroleum ether, ethyl acetate, ethanol and ultrasonic water-bath (75 degrees C), and the water extract was further isolated by Sephadex G-100 to afford a petroleum ether extract (PE), ethyl acetate extract (EAE), ethanol extract (EE), glycoprotein (GP) and a purified polysaccharide (PS). In combination with component analysis, the isolated PS showed d-Glc, d-Man, l-Ara and d-Gal in a molar ratio of 8:90:1:1. The average molecular weight of PS was determined as approximately 8.3 x 10(4). The immunomodulatory potentials of these samples (PE, EAE, EE, GP and PS) at three dose levels on the cellular and humoral immune responses of ICR mice against ovalbumin (OVA) were studied. ICR mice were immunized subcutaneously with 100 microg OVA alone or with 100 microg OVA dissolved in saline containing these samples (100, 200 or 400 microg) on days 1 and 15. Two weeks later (day 28), concanavalin A (Con A)- and OVA-stimulated splenocyte proliferation and OVA-specific antibody in serum were investigated. These samples, except for PS, significantly enhanced the Con A- and OVA-induced splenocyte proliferation in OVA-immunized mice at a suitable dose (p < 0.05 or p < 0.01). OVA-specific IgG, IgG1 and IgG2b antibody levels in serum were significantly enhanced by these extracts and PS compared with the OVA control group (p < 0.05, p < 0.01 or p < 0.001).
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Affiliation(s)
- Yalin Wu
- Department of Chemistry, Zhejiang University, Hangzhou 310 027, P.R. China
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Simas F, Maurer-Menestrina J, Reis R, Sassaki G, Iacomini M, Gorin P. Structure of the fucose-containing acidic heteroxylan from the gum exudate of Syagrus romanzoffiana (Queen palm). Carbohydr Polym 2006. [DOI: 10.1016/j.carbpol.2005.06.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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