1
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Sousa P, Tavares-Valente D, Pereira CF, Pinto-Ribeiro I, Azevedo-Silva J, Madureira R, Ramos ÓL, Pintado M, Fernandes J, Amorim M. Circular economyeast: Saccharomyces cerevisiae as a sustainable source of glucans and its safety for skincare application. Int J Biol Macromol 2024; 265:130933. [PMID: 38508554 DOI: 10.1016/j.ijbiomac.2024.130933] [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: 08/08/2023] [Revised: 03/12/2024] [Accepted: 03/14/2024] [Indexed: 03/22/2024]
Abstract
Glucans, a polysaccharide naturally present in the yeast cell wall that can be obtained from side streams generated during the fermentation process, have gained increasing attention for their potential as a skin ingredient. Therefore, this study focused on the extraction method to isolate and purify water-insoluble glucans from two different Saccharomyces cerevisiae strains: an engineered strain obtained from spent yeast in an industrial fermentation process and a wild strain produced through lab-scale fermentation. Two water-insoluble extracts with a high glucose content (> 90 %) were achieved and further subjected to a chemical modification using carboxymethylation to improve their water solubility. All the glucans' extracts, water-insoluble and carboxymethylated, were structurally and chemically characterized, showing almost no differences between both yeast-type strains. To ensure their safety for skin application, a broad safety assessment was undertaken, and no cytotoxic effect, immunomodulatory capacity (IL-6 and IL-8 regulation), genotoxicity, skin sensitization, and impact on the skin microbiota were observed. These findings highlight the potential of glucans derived from spent yeast as a sustainable and safe ingredient for cosmetic and skincare formulations, contributing to the sustainability and circular economy.
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Affiliation(s)
- Pedro Sousa
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Diana Tavares-Valente
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; Amyris Bio Products Portugal, Unipessoal Lda, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Carla F Pereira
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Inês Pinto-Ribeiro
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; Amyris Bio Products Portugal, Unipessoal Lda, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - João Azevedo-Silva
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Raquel Madureira
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Óscar L Ramos
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Manuela Pintado
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - João Fernandes
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; Amyris Bio Products Portugal, Unipessoal Lda, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Manuela Amorim
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal.
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2
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Anaya EU, Amin AE, Wester MJ, Danielson ME, Michel KS, Neumann AK. Dectin-1 multimerization and signaling depends on fungal β-glucan structure and exposure. Biophys J 2023; 122:3749-3767. [PMID: 37515324 PMCID: PMC10541497 DOI: 10.1016/j.bpj.2023.07.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 06/30/2023] [Accepted: 07/25/2023] [Indexed: 07/30/2023] Open
Abstract
Dectin-1A is a C-type lectin innate immunoreceptor that recognizes β-(1,3;1,6)-glucan, a structural component of Candida species cell walls. β-Glucans can adopt solution structures ranging from random coil to insoluble fiber due to tertiary (helical) and quaternary structure. Fungal β-glucans of medium and high molecular weight are highly structured, but low molecular weight glucan is much less structured. Despite similar affinity for Dectin-1, the ability of glucans to induce Dectin-1A-mediated signaling correlates with degree of structure. Glucan denaturation experiments showed that glucan structure determines agonistic potential, but not receptor binding affinity. We explored the impact of glucan structure on molecular aggregation of Dectin-1A. Stimulation with glucan signaling decreased Dectin-1A diffusion coefficient. Fluorescence measurements provided direct evidence of ligation-induced Dectin-1A aggregation, which positively correlated with increasing glucan structure content. In contrast, Dectin-1A is predominantly in a low aggregation state in resting cells. Molecular aggregates formed during interaction with highly structured, agonistic glucans did not exceed relatively small (<15 nm) clusters of a few engaged receptors. Finally, we observed increased molecular aggregation of Dectin-1A at fungal particle contact sites in a manner that positively correlated with the degree of exposed glucan on the particle surface. These results indicate that Dectin-1A senses the solution conformation of β-glucans through their varying ability to drive receptor dimer/oligomer formation and activation of membrane proximal signaling events.
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Affiliation(s)
- Eduardo U Anaya
- Department of Pathology, University of New Mexico, School of Medicine, Albuquerque, New Mexico
| | - Akram Etemadi Amin
- Department of Pathology, University of New Mexico, School of Medicine, Albuquerque, New Mexico; Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico
| | - Michael J Wester
- Department of Mathematics and Statistics, University of New Mexico, Albuquerque, New Mexico
| | | | | | - Aaron K Neumann
- Department of Pathology, University of New Mexico, School of Medicine, Albuquerque, New Mexico.
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3
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Yusuf M, Baroroh U, Nuwarda RF, Prasetiya FS, Ishmayana S, Novianti MT, Tohari TR, Hardianto A, Subroto T, Mouget JL, Pasetto P. Theoretical and Experimental Studies on the Evidence of 1,3-β-Glucan in Marennine of Haslea ostrearia. Molecules 2023; 28:5625. [PMID: 37570595 PMCID: PMC10419454 DOI: 10.3390/molecules28155625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/12/2023] [Accepted: 07/17/2023] [Indexed: 08/13/2023] Open
Abstract
Marennine, a blue pigment produced by the blue diatom Haslea ostrearia, is known to have some biological activities. This pigment is responsible for the greening of oysters on the West Coast of France. Other new species of blue diatom, H. karadagensis, H. silbo sp. inedit., H. provincialis sp. inedit, and H. nusantara, also produce marennine-like pigments with similar biological activities. Aside from being a potential source of natural blue pigments, H. ostrearia-like diatoms present a commercial potential for the aquaculture, food, cosmetics, and health industries. Unfortunately, for a hundred years, the exact molecular structure of this bioactive compound has remained a mystery. A lot of hypotheses regarding the chemical structure of marennine have been proposed. The recent discovery of this structure revealed that it is a macromolecule, mainly carbohydrates, with a complex composition. In this study, some glycoside hydrolases were used to digest marennine, and the products were further analyzed using nuclear magnetic resonance (NMR) and mass spectroscopy (MS). The reducing sugar assay showed that marennine was hydrolyzed only by endo-1,3-β-glucanase. Further insight into the structure of marennine was provided by the spectrum of 1H NMR, MS, a colorimetric assay, and a computational study, which suggest that the chemical structure of marennine contains 1,3-β-glucan.
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Affiliation(s)
- Muhammad Yusuf
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang 45363, Indonesia; (M.Y.); (S.I.); (A.H.); (T.S.)
- Research Center for Molecular Biotechnology and Bioinformatics, Universitas Padjadjaran, Bandung 40133, Indonesia; (U.B.); (M.T.N.); (T.R.T.)
| | - Umi Baroroh
- Research Center for Molecular Biotechnology and Bioinformatics, Universitas Padjadjaran, Bandung 40133, Indonesia; (U.B.); (M.T.N.); (T.R.T.)
- Department of Biotechnology Pharmacy, Indonesian School of Pharmacy, Bandung 40266, Indonesia
| | - Rina Fajri Nuwarda
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia;
| | - Fiddy Semba Prasetiya
- Research Center for Biosystematics and Evolution, Research Organization for Life Sciences and Environment, National Research and Innovation Agency (BRIN), Cibinong 16911, Indonesia;
| | - Safri Ishmayana
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang 45363, Indonesia; (M.Y.); (S.I.); (A.H.); (T.S.)
| | - Mia Tria Novianti
- Research Center for Molecular Biotechnology and Bioinformatics, Universitas Padjadjaran, Bandung 40133, Indonesia; (U.B.); (M.T.N.); (T.R.T.)
| | - Taufik Ramdani Tohari
- Research Center for Molecular Biotechnology and Bioinformatics, Universitas Padjadjaran, Bandung 40133, Indonesia; (U.B.); (M.T.N.); (T.R.T.)
| | - Ari Hardianto
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang 45363, Indonesia; (M.Y.); (S.I.); (A.H.); (T.S.)
| | - Toto Subroto
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang 45363, Indonesia; (M.Y.); (S.I.); (A.H.); (T.S.)
- Research Center for Molecular Biotechnology and Bioinformatics, Universitas Padjadjaran, Bandung 40133, Indonesia; (U.B.); (M.T.N.); (T.R.T.)
| | - Jean-Luc Mouget
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BiOSSE), Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans, France;
| | - Pamela Pasetto
- Institut des Molécules et Matériaux du Mans (IMMM), UMR CNRS 6283, Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans, France
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4
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Prompting immunostimulatory activity of curdlan with grafting methoxypolyethylene glycol. Int J Biol Macromol 2022; 222:1092-1100. [DOI: 10.1016/j.ijbiomac.2022.09.240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/24/2022] [Accepted: 09/26/2022] [Indexed: 11/19/2022]
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5
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Hattori K, Takagi H, Ogata Y, Yamada T, Horiba H, Fukata K, Sakaida T, Yashiro Y, Hasegawa S, Tanaka H. Immunostimulatory effects of a subcritical water extract of Ganoderma. Biomed Rep 2022; 18:1. [PMID: 36544853 PMCID: PMC9756285 DOI: 10.3892/br.2022.1583] [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: 07/05/2022] [Accepted: 10/11/2022] [Indexed: 11/10/2022] Open
Abstract
Ganoderma, a medicinal mushroom with various physiological activities, has been extensively investigated regarding its effectiveness. The aim of the present study was to examine the effects of a subcritical water extract of Ganoderma (SWEG) on the immune system. The use of subcritical water with a higher temperature and pressure than hot water allows efficient elution of components from natural products. As an evaluation of the effectiveness of SWEG, a cell proliferation and a cell differentiation test were carried out using A-6 cells, a model of hematopoietic stem cells. Furthermore, an oral administration test in mice was conducted to examine the effects of SWEG on the number and function of immune cells. As a result, SWEG was revealed to promote both self-renewal and differentiation into immune cells such as T cells and natural killer (NK) cells in experiments with A-6 cells. These results were not obtained in experiments using hot water extract of Ganoderma lucidum and Ganoderma sinense. The oral administration test in mice demonstrated that SWEG increased hematopoietic precursor cells, immature B cells, and NK cells in the bone marrow, and T cells in the thymus. In addition, SWEG enhanced the immune functions in the spleen by promoting granzyme B expression and NK cell activity. SWEG was demonstrated to be a food material that acts on HSCs and regulates immunity in vivo.
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Affiliation(s)
- Koji Hattori
- Research Laboratories, Nippon Menard Cosmetic Co., Ltd., Nagoya-shi, Aichi 451-0071, Japan
| | - Hiroshi Takagi
- Research Laboratories, Nippon Menard Cosmetic Co., Ltd., Nagoya-shi, Aichi 451-0071, Japan
| | - Yuichiro Ogata
- Research Laboratories, Nippon Menard Cosmetic Co., Ltd., Nagoya-shi, Aichi 451-0071, Japan
| | - Takaaki Yamada
- Research Laboratories, Nippon Menard Cosmetic Co., Ltd., Nagoya-shi, Aichi 451-0071, Japan
| | - Hiroki Horiba
- Research Laboratories, Nippon Menard Cosmetic Co., Ltd., Nagoya-shi, Aichi 451-0071, Japan
| | - Kousuke Fukata
- Research Laboratories, Nippon Menard Cosmetic Co., Ltd., Nagoya-shi, Aichi 451-0071, Japan
| | - Tsutomu Sakaida
- Research Laboratories, Nippon Menard Cosmetic Co., Ltd., Nagoya-shi, Aichi 451-0071, Japan
| | - Youichi Yashiro
- Research Laboratories, Nippon Menard Cosmetic Co., Ltd., Nagoya-shi, Aichi 451-0071, Japan
| | - Seiji Hasegawa
- Research Laboratories, Nippon Menard Cosmetic Co., Ltd., Nagoya-shi, Aichi 451-0071, Japan,Nagoya University-MENARD Collaborative Research Chair, Nagoya University Graduate School of Medicine, Nagoya-shi, Aichi 466-8550, Japan,Correspondence to: Dr Seiji Hasegawa, Research Laboratories, Nippon Menard Cosmetic Co., Ltd., 2-7 Torimi-cho, Nishi-ku, Nagoya-shi, Aichi 451-0071, Japan
| | - Hiroyuki Tanaka
- Laboratory of Immunobiology, Department of Biofunctional Analysis, Gifu Pharmaceutical University, Gifu 501-1196, Japan
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6
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Qiu M, Li B, Geng D, Xiang Q, Xin Y, Ding Q, Tang S. Aminated β-Glucan with immunostimulating activities and collagen composite sponge for wound repair. Int J Biol Macromol 2022; 221:193-203. [PMID: 36063897 DOI: 10.1016/j.ijbiomac.2022.08.202] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/16/2022] [Accepted: 08/31/2022] [Indexed: 11/27/2022]
Abstract
Immunostimulating activities of yeast β(1 → 3)-D-Glucan (β-Glucan) mainly depended on its structures. However, due to the tight triple helix structure of β-Glucan, its immunostimulating activity is greatly weakened. Therefore, in order to partially unwind the tight triple helix structure of β-glucan and improve its solubility in the medium, we modified it by amination in this study (A-Glu). The results showed that A-Glu could stimulate Raw264.7 macrophages and significantly enhance its TNF-α, IL-6, and IL-10 cytokine expression levels in vitro. A-Glu could also induce a shift of M0 Raw264.7 toward M1, and M2 toward M1. To expand the application of A-Glu in wound repair, the composite sponge consisting of A-Glu and type I collagen via the formation of a stable polyion complex (PIC) was developed. Moreover, the composite sponge could accelerate wound repair significantly. These results reveal that soluble A-Glu as an immunostimulating agent has potential applications in biomedicine.
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Affiliation(s)
- Minqi Qiu
- Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Bing Li
- Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Dezhi Geng
- Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China
| | - Qi Xiang
- Biopharmaceutical R&D Center, Jinan University, Guangzhou 510632, China
| | - Yanjiao Xin
- Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Qiang Ding
- Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
| | - Shunqing Tang
- Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
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7
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Long H, Xiao J, Wang X, Liang M, Fan Y, Xu Y, Lin M, Ren Z, Wu C, Wang Y. Laminarin acetyl esters: Synthesis, conformational analysis and anti-viral effects. Int J Biol Macromol 2022; 216:528-536. [PMID: 35809670 DOI: 10.1016/j.ijbiomac.2022.06.208] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/30/2022] [Accepted: 06/30/2022] [Indexed: 01/08/2023]
Abstract
Chemical modification of polysaccharides is important for expanding their applications and gaining new insights into their structure-property relationships. Here we reported the synthesis, characterization, and anti-viral activities of laminarin acetyl derivatives. The chemical structure and chain conformation of acetylated laminarin were characterized by FT-IR, H1 NMR, AFM, UV-vis spectrum, and induced circular dichroism based on a modified Congo Red assay (ICD-CR assay). The inhibition effect of laminarin and its acetyl derivatives on HSV-1 was evaluated by viral plaque assay and virus-associated DNA/protein change. Acetylation modification was found to trigger the conformation transition of laminarin from triple helix to single helix, and the extent of transition can be tuned by the degree of substitution. The single helical acetylated laminarins were found to be stable in neutral aqueous solution and exhibited no cytotoxicity. However, the acetylated laminarin exhibited declined antiviral activity after modification.
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Affiliation(s)
- Haiyue Long
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, Guangdong Provincial Key Laboratory of Virology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Ji Xiao
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, Guangdong Provincial Key Laboratory of Virology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Xiaohui Wang
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, Guangdong Provincial Key Laboratory of Virology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Minting Liang
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, Guangdong Provincial Key Laboratory of Virology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Yapei Fan
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, Guangdong Provincial Key Laboratory of Virology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Yuying Xu
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, Guangdong Provincial Key Laboratory of Virology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Mengting Lin
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, Guangdong Provincial Key Laboratory of Virology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Zhe Ren
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, Guangdong Provincial Key Laboratory of Virology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Chaoxi Wu
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, Guangdong Provincial Key Laboratory of Virology, College of Life Science and Technology, Jinan University, Guangzhou, China.
| | - Yifei Wang
- Guangzhou Jinan Biomedicine Research and Development Center, Institute of Biomedicine, Guangdong Provincial Key Laboratory of Virology, College of Life Science and Technology, Jinan University, Guangzhou, China.
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8
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Caseiro C, Dias JNR, de Andrade Fontes CMG, Bule P. From Cancer Therapy to Winemaking: The Molecular Structure and Applications of β-Glucans and β-1, 3-Glucanases. Int J Mol Sci 2022; 23:ijms23063156. [PMID: 35328577 PMCID: PMC8949617 DOI: 10.3390/ijms23063156] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/11/2022] [Accepted: 03/11/2022] [Indexed: 02/04/2023] Open
Abstract
β-glucans are a diverse group of polysaccharides composed of β-1,3 or β-(1,3-1,4) linked glucose monomers. They are mainly synthesized by fungi, plants, seaweed and bacteria, where they carry out structural, protective and energy storage roles. Because of their unique physicochemical properties, they have important applications in several industrial, biomedical and biotechnological processes. β-glucans are also major bioactive molecules with marked immunomodulatory and metabolic properties. As such, they have been the focus of many studies attesting to their ability to, among other roles, fight cancer, reduce the risk of cardiovascular diseases and control diabetes. The physicochemical and functional profiles of β-glucans are deeply influenced by their molecular structure. This structure governs β-glucan interaction with multiple β-glucan binding proteins, triggering myriad biological responses. It is then imperative to understand the structural properties of β-glucans to fully reveal their biological roles and potential applications. The deconstruction of β-glucans is a result of β-glucanase activity. In addition to being invaluable tools for the study of β-glucans, these enzymes have applications in numerous biotechnological and industrial processes, both alone and in conjunction with their natural substrates. Here, we review potential applications for β-glucans and β-glucanases, and explore how their functionalities are dictated by their structure.
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Affiliation(s)
- Catarina Caseiro
- CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; (C.C.); (J.N.R.D.)
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Joana Nunes Ribeiro Dias
- CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; (C.C.); (J.N.R.D.)
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | | | - Pedro Bule
- CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; (C.C.); (J.N.R.D.)
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
- Correspondence:
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9
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Feng X, Li F, Ding M, Zhang R, Shi T, Jiang W. Molecular dynamic simulation: Structural insights of multi-stranded curdlan in aqueous solution. Carbohydr Polym 2021; 261:117844. [PMID: 33766340 DOI: 10.1016/j.carbpol.2021.117844] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/01/2021] [Accepted: 02/18/2021] [Indexed: 12/28/2022]
Abstract
In this work, by using molecular dynamic simulation we provide microscale structure information which helps to reveal the molecular mechanisms concerning the multi-chain conformational behavior of short curdlan. Through simulations starting with different conformations of curldan dodecasaccharides, it is found that the right-handed triple helix is thermodynamically the most stable conformation in aqueous solutions, which is well maintained and stabilized by an inter-strand hydrogen bonding network of the C2 hydroxyls. Unlike any predicted forms, the inter-strand hydrogen bonds exhibit a left-handed double helix pattern with preferred global orientations. Temperature REMD results suggest that the formation of triple helix is temperature sensitive, but the already formed triple helix is not. Investigation of curdlan with numbers of repeating units from 3 to 12 captures a critical value of 6, which in a way elucidates the relationship between the formation of triple helix and the chain length.
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Affiliation(s)
- Xuan Feng
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, PR China
| | - Fan Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Mingming Ding
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Ran Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
| | - Tongfei Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, PR China.
| | - Wei Jiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, PR China
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10
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Triple-helix polysaccharides: Formation mechanisms and analytical methods. Carbohydr Polym 2021; 262:117962. [PMID: 33838830 DOI: 10.1016/j.carbpol.2021.117962] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 03/15/2021] [Accepted: 03/15/2021] [Indexed: 12/26/2022]
Abstract
Triple helix conformation of polysaccharides is generally believed to be associated with their biological activities. However, the formation mechanisms and analytical methods for the triple helix polysaccharides, to our best knowledge, have not been systematically investigated. This article reviews specifically the literature on the formation and characterization of triple-helix polysaccharides. The formation mechanisms and related structural-conformation-bioactivity relationships are discussed; various analytical methods for characterizing triple-helix polysaccharides are summarized. This review devotes to a better understanding of the formation of polysaccharides based triple-helix structure and related analytical methods. These could provide some insights and inspirations for their applications in both food and pharmaceutical industries.
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11
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Fan SL, Lin JA, Chen SY, Lin JH, Lin HT, Chen YY, Yen GC. Effects of Hsian-tsao (Mesona procumbens Hemsl.) extracts and its polysaccharides on the promotion of wound healing under diabetes-like conditions. Food Funct 2021; 12:119-132. [DOI: 10.1039/d0fo02180f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Hsian-tsao extracts and its polysaccharides accelerate wound healing in cell models and diabetic mice.
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Affiliation(s)
- Siao-Ling Fan
- Department of Food Science and Biotechnology
- National Chung Hsing University
- Taichung 40227
- Taiwan
| | - Jer-An Lin
- Graduate Institute of Food Safety
- National Chung Hsing University
- Taichung 40227
- Taiwan
| | - Sheng-Yi Chen
- Department of Food Science and Biotechnology
- National Chung Hsing University
- Taichung 40227
- Taiwan
| | - Jia-Hong Lin
- Department of Food Science and Biotechnology
- National Chung Hsing University
- Taichung 40227
- Taiwan
| | - Hsin-Tang Lin
- Graduate Institute of Food Safety
- National Chung Hsing University
- Taichung 40227
- Taiwan
| | - Ying-Yin Chen
- Department of Food Science and Biotechnology
- National Chung Hsing University
- Taichung 40227
- Taiwan
| | - Gow-Chin Yen
- Department of Food Science and Biotechnology
- National Chung Hsing University
- Taichung 40227
- Taiwan
- Graduate Institute of Food Safety
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12
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Usoltseva RV, Belik AA, Kusaykin MI, Malyarenko OS, Zvyagintsevа TN, Ermakova SP. Laminarans and 1,3-β-D-glucanases. Int J Biol Macromol 2020; 163:1010-1025. [PMID: 32663561 DOI: 10.1016/j.ijbiomac.2020.07.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/03/2020] [Accepted: 07/04/2020] [Indexed: 01/12/2023]
Abstract
The laminarans are biologically active water-soluble polysaccharide (1,3;1,6-β-D-glucans) of brown algae. These polysaccharides are an attractive object for research due to its relatively simple structure, low toxicity, and various biological effects. 1,3-β-D-glucanases are an effective tool for studying the structure of laminarans, and can also be used to obtain new biologically active derivatives. This review is to outline what is currently known about laminarans and enzymes that catalyze of their transformation. We focused on information about sources, structure and properties of laminarans and 1,3-β-D-glucanases, methods of obtaining and structural elucidation of laminarans, and biological activity of laminarans and products of their enzymatic transformation. It has an increased focus on the immunomodulating and anticancer activity of laminarans and their derivatives.
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Affiliation(s)
- Roza V Usoltseva
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022, 159, 100 Let Vladivostoku prosp., Vladivostok, Russian Federation.
| | - Aleksei A Belik
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022, 159, 100 Let Vladivostoku prosp., Vladivostok, Russian Federation
| | - Mikhail I Kusaykin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022, 159, 100 Let Vladivostoku prosp., Vladivostok, Russian Federation.
| | - Olesya S Malyarenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022, 159, 100 Let Vladivostoku prosp., Vladivostok, Russian Federation.
| | - Tatiana N Zvyagintsevа
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022, 159, 100 Let Vladivostoku prosp., Vladivostok, Russian Federation.
| | - Svetlana P Ermakova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022, 159, 100 Let Vladivostoku prosp., Vladivostok, Russian Federation
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13
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Song HH, Raynor S. A Cyclic Periodic Wave Function Approach for the Study of Infinitely Periodic Solid-State Systems: II. Application to Helical Polysaccharides. ACS OMEGA 2020; 5:27556-27565. [PMID: 33134719 PMCID: PMC7594323 DOI: 10.1021/acsomega.0c04096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 09/22/2020] [Indexed: 06/11/2023]
Abstract
The cyclic periodic wave function (CPWF) approach is applied at the AM1 and PM3 semiempirical levels of approximation to two infinitely periodic polymer systems in the solid state. The two polysaccharides of interest here are (1→3)-β-d-glucan and (1→3)-β-d-xylan. Our calculated results show excellent agreement with the available data for the two polysaccharides and demonstrate that the use of the CPWF approach at the AM1 and PM3 levels of approximation provides a convenient and reliable method for the study of infinitely periodic bonds of two different types: moderately strong O-H···O hydrogen bonding and strong C-O-C covalent bonding.
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Affiliation(s)
| | - Susanne Raynor
- Department of Chemistry, Rutgers
University—Newark, The State University
of New Jersey. 73 Warren
Street, Newark, New Jersey 07102, United States
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14
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Nonoguchi Y, Kodama A, Unesaki R, Doi N, Suzuki T, Koumoto K. Modification of the Release Rate of Curcumin from the Cavity of Renatured β-1,3-1,6-Glucan Nanoparticles by Changing the Molecular Weight of the Constituent Polysaccharide Chains. CHEM LETT 2020. [DOI: 10.1246/cl.200366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuki Nonoguchi
- Department of Nanobiochemistry, FIRST (Frontiers of Innovative Research in Science and Technology), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Ayumu Kodama
- Department of Nanobiochemistry, FIRST (Frontiers of Innovative Research in Science and Technology), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Rika Unesaki
- Department of Nanobiochemistry, FIRST (Frontiers of Innovative Research in Science and Technology), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Nanako Doi
- Department of Nanobiochemistry, FIRST (Frontiers of Innovative Research in Science and Technology), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Toshio Suzuki
- Department of Applied Chemistry and Bioengineering, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Kazuya Koumoto
- Department of Nanobiochemistry, FIRST (Frontiers of Innovative Research in Science and Technology), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
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15
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Sunamura EI, Iwasaki M, Shiina S, Kitahara SI, Yotani T, Manabe M, Miyazaki O. A novel enzyme immunoassay for the measurement of plasma (1 → 3)-β-D-glucan levels. J Immunol Methods 2020; 487:112872. [PMID: 33007318 DOI: 10.1016/j.jim.2020.112872] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 09/01/2020] [Accepted: 09/23/2020] [Indexed: 11/24/2022]
Abstract
The presence of (1 → 3)-β-D-glucan in human plasma is a marker for fungal infections. Currently, the Limulus amebocyte lysate (LAL)-based assay is widely used for the quantification of plasma (1 → 3)-β-D-glucan. However, it has limitations in clinical use, such as an unstable supply of natural resources, complicated manufacturing process, and low-throughput of the reagents. Alternative assays exploiting specific antibodies against (1 → 3)-β-D-glucan have been developed to overcome these challenges. However, these methods are associated with low sensitivity and poorly correlate with the data obtained by the LAL-based assay. The aim of this study is to develop a novel enzyme immunoassay that is as sensitive and accurate in determining plasma (1 → 3)-β-D-glucan levels as compared to that obtained with the LAL-based assay. We generated specific monoclonal antibodies against (1 → 3)-β-D-glucan that recognizes four-unit glucose oligomers with (1 → 3)-β-D-linkages, and constructed a sandwich enzyme-linked immunosorbent assay (ELISA) using these antibodies. The newly developed ELISA showed proportional increase in absorbance with the volume of (1 → 3)-β-D-glucan added. The limit of detection of the assay was 4 pg/ml of plasma (1 → 3)-β-D-glucan that was equivalent to the LAL-based assay and the working range was 4-500 pg/ml. The intra-assay coefficient of variation was 2.2-5.4% using three different concentrations of plasma samples. We observed strong correlation (R = 0.941, slope = 0.986) between the measurements obtained by our ELISA and Fungitec G test ES Nissui, a commonly used LAL-based assay, using 26 types of plasma samples. This could be attributed to the epitopes of the antibodies. Both antibodies could inhibit the LAL-based assay, suggesting that the antibodies recognize the identical regions in β-D-glucan, thereby inactivating factor G, an initiation zymogen for coagulation cascade, in the LAL-based assay. Thus, the ELISA developed in this study can detect fungal infections in clinical settings with similar efficiency as the LAL-based assay. This assay is characterized by good performance, stable supply of materials, and simple manufacturing process and is more suitable for the high-throughput diagnosis of fungal infections.
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Affiliation(s)
- Ei-Ichiro Sunamura
- Tsukuba Research Institute, Research and Development, Sekisui Medical Co., Ltd., Ibaraki 301-0852, Japan.
| | - Manami Iwasaki
- Tsukuba Research Institute, Research and Development, Sekisui Medical Co., Ltd., Ibaraki 301-0852, Japan
| | - Shota Shiina
- Tsukuba Research Institute, Research and Development, Sekisui Medical Co., Ltd., Ibaraki 301-0852, Japan
| | - Shin-Ichiro Kitahara
- Tsukuba Research Institute, Research and Development, Sekisui Medical Co., Ltd., Ibaraki 301-0852, Japan
| | - Takuya Yotani
- Instrument System Development Office, Research and Development, Sekisui Medical Co., Ltd., Tokyo 103-0027, Japan
| | | | - Osamu Miyazaki
- Tsukuba Research Institute, Research and Development, Sekisui Medical Co., Ltd., Ibaraki 301-0852, Japan
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16
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Castanheira EJ, Correia TR, Rodrigues JMM, Mano JF. Novel Biodegradable Laminarin Microparticles for Biomedical Applications. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200034] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Edgar J. Castanheira
- CICECO – Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Tiago R. Correia
- CICECO – Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - João M. M. Rodrigues
- CICECO – Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - João F. Mano
- CICECO – Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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17
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Wanke A, Rovenich H, Schwanke F, Velte S, Becker S, Hehemann JH, Wawra S, Zuccaro A. Plant species-specific recognition of long and short β-1,3-linked glucans is mediated by different receptor systems. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 102:1142-1156. [PMID: 31925978 DOI: 10.1111/tpj.14688] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 12/26/2019] [Accepted: 01/06/2020] [Indexed: 05/21/2023]
Abstract
Plants survey their environment for the presence of potentially harmful or beneficial microbes. During colonization, cell surface receptors perceive microbe-derived or modified-self ligands and initiate appropriate responses. The recognition of fungal chitin oligomers and the subsequent activation of plant immunity are well described. In contrast, the mechanisms underlying β-glucan recognition and signaling activation remain largely unexplored. Here, we systematically tested immune responses towards different β-glucan structures and show that responses vary between plant species. While leaves of the monocots Hordeum vulgare and Brachypodium distachyon can recognize longer (laminarin) and shorter (laminarihexaose) β-1,3-glucans with responses of varying intensity, duration and timing, leaves of the dicot Nicotiana benthamiana activate immunity in response to long β-1,3-glucans, whereas Arabidopsis thaliana and Capsella rubella perceive short β-1,3-glucans. Hydrolysis of the β-1,6 side-branches of laminarin demonstrated that not the glycosidic decoration but rather the degree of polymerization plays a pivotal role in the recognition of long-chain β-glucans. Moreover, in contrast to the recognition of short β-1,3-glucans in A. thaliana, perception of long β-1,3-glucans in N. benthamiana and rice is independent of CERK1, indicating that β-glucan recognition may be mediated by multiple β-glucan receptor systems.
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Affiliation(s)
- Alan Wanke
- University of Cologne, Institute for Plant Sciences, 50679, Cologne, Germany
- Max Planck Institute for Plant Breeding Research, 50829, Cologne, Germany
| | - Hanna Rovenich
- University of Cologne, Institute for Plant Sciences, 50679, Cologne, Germany
- University of Cologne, Cluster of Excellence on Plant Sciences (CEPLAS), 50679, Cologne, Germany
| | - Florian Schwanke
- University of Cologne, Institute for Plant Sciences, 50679, Cologne, Germany
| | - Stefanie Velte
- University of Cologne, Institute for Plant Sciences, 50679, Cologne, Germany
| | - Stefan Becker
- Center for Marine Environmental Sciences, University of Bremen, MARUM, 28359, Bremen, Germany
- Max Planck Institute for Marine Microbiology, 28359, Bremen, Germany
| | - Jan-Hendrik Hehemann
- Center for Marine Environmental Sciences, University of Bremen, MARUM, 28359, Bremen, Germany
- Max Planck Institute for Marine Microbiology, 28359, Bremen, Germany
| | - Stephan Wawra
- University of Cologne, Institute for Plant Sciences, 50679, Cologne, Germany
- University of Cologne, Cluster of Excellence on Plant Sciences (CEPLAS), 50679, Cologne, Germany
| | - Alga Zuccaro
- University of Cologne, Institute for Plant Sciences, 50679, Cologne, Germany
- University of Cologne, Cluster of Excellence on Plant Sciences (CEPLAS), 50679, Cologne, Germany
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18
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Zheng X, Li S, Si Y, Hu J, Xia Y. Locust can detect β-1, 3-glucan of the fungal pathogen before penetration and defend infection via the Toll signaling pathway. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 106:103636. [PMID: 32014469 DOI: 10.1016/j.dci.2020.103636] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/28/2020] [Accepted: 01/28/2020] [Indexed: 06/10/2023]
Abstract
The timing and mechanism by which a host insect initiates an immune response are critical to successful defense against infection. Pathogen recognition, a prerequisite for host defense, has long been recognized to take place during the insect epidermis invasion by fungus. Here we report that insect can sense the fungal pathogen before host cuticle is penetrated by fungus. We discovered the upstream pattern recognition receptor (PRR) genes of the Toll pathway were upregulated in both the integument and fat body early during fungal germination on the epicuticle of Locusta migratoria manilensis. The Toll signaling pathway was strongly activated in the fat body at the penetration stage. RNAi of Myd88 increased the susceptibility of locusts to fungal infection, but that of Cactus showed the opposite effect. In addition, β-1, 3-glucan (laminarin), the main component of the cell wall of the pathogenic fungus Metarhizium acridum, was capable of activating the Toll signaling pathway (Spaetzle and Cactus) when it was applied on the host cuticle. These results demonstrate that host epidemis can effectively defend fungal infection by detecting β-1, 3-glucan on the fungal cell wall and activate the Toll signaling pathway even before fungal penetration.
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Affiliation(s)
- Xiaoli Zheng
- Genetic Engineering Research Center, School of Life Science, Chongqing University, Chongqing, 400030, PR China; College of Preclinical Medicine, Southwest Medical University, Luzhou, 646000, PR China; Chongqing Engineering Research Center for Fungal Insecticide, Chongqing, 400030, PR China; Key Laboratory of Gene Function and Regulation Technologies under Chongqing Municipal Education Commission, Chongqing, 400030, PR China
| | - Sai Li
- Genetic Engineering Research Center, School of Life Science, Chongqing University, Chongqing, 400030, PR China; Chongqing Engineering Research Center for Fungal Insecticide, Chongqing, 400030, PR China; Key Laboratory of Gene Function and Regulation Technologies under Chongqing Municipal Education Commission, Chongqing, 400030, PR China
| | - Yang Si
- Genetic Engineering Research Center, School of Life Science, Chongqing University, Chongqing, 400030, PR China; Chongqing Engineering Research Center for Fungal Insecticide, Chongqing, 400030, PR China; Key Laboratory of Gene Function and Regulation Technologies under Chongqing Municipal Education Commission, Chongqing, 400030, PR China
| | - Jun Hu
- Genetic Engineering Research Center, School of Life Science, Chongqing University, Chongqing, 400030, PR China; Chongqing Engineering Research Center for Fungal Insecticide, Chongqing, 400030, PR China; Key Laboratory of Gene Function and Regulation Technologies under Chongqing Municipal Education Commission, Chongqing, 400030, PR China
| | - Yuxian Xia
- Genetic Engineering Research Center, School of Life Science, Chongqing University, Chongqing, 400030, PR China; Chongqing Engineering Research Center for Fungal Insecticide, Chongqing, 400030, PR China; Key Laboratory of Gene Function and Regulation Technologies under Chongqing Municipal Education Commission, Chongqing, 400030, PR China.
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19
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Meng Y, Lyu F, Xu X, Zhang L. Recent Advances in Chain Conformation and Bioactivities of Triple-Helix Polysaccharides. Biomacromolecules 2020; 21:1653-1677. [PMID: 31986015 DOI: 10.1021/acs.biomac.9b01644] [Citation(s) in RCA: 116] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Natural polysaccharides derived from renewable biomass sources are regarded as environmentally friendly and sustainable polymers. As the third most abundant biomacromolecule in nature, after proteins and nucleic acids, polysaccharides are also closely related with many different life activities. In particular, β-glucans are one of the most widely reported bioactive polysaccharides and are usually considered as biological response modifiers. Among them, β-glucans with triple-helix conformation have been the hottest and most well-researched polysaccharides at present, especially lentinan and schizophyllan, which are clinically used as cancer therapies in some Asian countries. Thus, creation of these active triple-helix polysaccharides is beneficial to the research and development of sustainable "green" biopolymers in the fields of food and life sciences. Therefore, full fundamental research of triple-helix polysaccharides is essential to discover more applications for polysaccharides. In this Review, the recent research progress of chain conformations, bioactivities, and structure-function relationships of triple-helix β-glucans is summarized. The main contents include the characterization methods of the macromolecular conformation, proof of triple helices, bioactivities, and structure-function relationships. We believe that the governments, enterprises, universities, and institutes dealing with the survival and health of human beings can expect the development of natural bioproducts in the future. Hence, a deep understanding of β-glucans with triple-helix chain conformation is necessary for application of natural medicines and biologics for a sustainable world.
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Affiliation(s)
- Yan Meng
- College of Chemistry & Molecule Sciences, Wuhan University, Wuhan 430072, China.,College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Fengzhi Lyu
- College of Chemistry & Molecule Sciences, Wuhan University, Wuhan 430072, China
| | - Xiaojuan Xu
- College of Chemistry & Molecule Sciences, Wuhan University, Wuhan 430072, China
| | - Lina Zhang
- College of Chemistry & Molecule Sciences, Wuhan University, Wuhan 430072, China
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20
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Kodama A, Nakagawa A, Nonoguchi Y, Sakurai H, Yano C, Suzuki T, Koumoto K. Solubilization of poorly water‐soluble bioactive molecules in neutral aqueous media by complexation with renatured β‐1,3‐1,6‐glucan nanoparticles. Biopolymers 2020; 111:e23349. [DOI: 10.1002/bip.23349] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/15/2020] [Accepted: 01/27/2020] [Indexed: 11/12/2022]
Affiliation(s)
- Ayumu Kodama
- Department of Nanobiochemistry, Faculty of Frontiers of Innovative Research in Science and Technology (FIRST)Konan University Kobe Japan
| | - Akifumi Nakagawa
- Department of Nanobiochemistry, Faculty of Frontiers of Innovative Research in Science and Technology (FIRST)Konan University Kobe Japan
| | - Yuki Nonoguchi
- Department of Nanobiochemistry, Faculty of Frontiers of Innovative Research in Science and Technology (FIRST)Konan University Kobe Japan
| | - Haruka Sakurai
- Department of Nanobiochemistry, Faculty of Frontiers of Innovative Research in Science and Technology (FIRST)Konan University Kobe Japan
| | - Chieko Yano
- Department of Nanobiochemistry, Faculty of Frontiers of Innovative Research in Science and Technology (FIRST)Konan University Kobe Japan
| | - Toshio Suzuki
- Department of Applied Chemistry and BioengineeringGraduate School of Engineering, Osaka City University Osaka Japan
| | - Kazuya Koumoto
- Department of Nanobiochemistry, Faculty of Frontiers of Innovative Research in Science and Technology (FIRST)Konan University Kobe Japan
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21
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Kono H, Kondo N, Isono T, Ogata M, Hirabayashi K. Characterization of the secondary structure and order-disorder transition of a β-(1 → 3, 1 → 6)-glucan from Aureobasidium pullulans. Int J Biol Macromol 2019; 154:1382-1391. [PMID: 31733241 DOI: 10.1016/j.ijbiomac.2019.11.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/23/2019] [Accepted: 11/04/2019] [Indexed: 10/25/2022]
Abstract
This study revealed the secondary structures of the water-soluble Aureobasidium pullulans β-(1 → 3, 1 → 6)-d-glucan (APG) whose primary structural unit is a β-(1 → 3)-d-glucan backbone with four β-(1 → 6)-d-glucosyl branching units every six residues. Solid-state NMR spectroscopy, X-ray diffractometry (XRD), and small-angle X-ray scattering (SAXS) experiments involving samples prepared from lyophilized APG showed that APG forms a triple helix in H2O and a random structure in DMSO. In addition, it was revealed that the transformation from the triple helix of APG to the random structure occurs reversibly, and that the triple helix is recovered from the random structure in DMSO/H2O mixtures containing more than 30% H2O. Solid-state NMR and diffraction studies revealed that the triple helix of APG is more stable than that of schizophyllan (SPG) whose structure comprises a β-(1 → 3)-d-glucan backbone with one β-(1 → 6)-d-branching unit every three residues. The APG helical pitch is 1.82 nm, which is about 10% longer than that of the triple helix of SPG. These findings show that the β-(1 → 6) side-chain frequency strongly affects the stability and helical pitch of a β-(1 → 3, 1 → 6)-d-glucan.
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Affiliation(s)
- Hiroyuki Kono
- Division of Applied Chemistry and Biochemistry, National Institute of Technology, Tomakomai College, Nishikioka 443, Tomakomai, Hokkaido 059 1275, Japan.
| | - Nobuhiro Kondo
- Itochu Sugar Co. Ltd, Tamatsuura 3, Hekinan, Aichi 447 8506, Japan
| | - Takuya Isono
- Division of Biotechnology and Macromolecular Chemistry, Graduate School of Chemical Sciences and Engineering, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060 8628, Japan
| | - Makoto Ogata
- Department of Chemistry and Biochemistry, National Institute of Technology, Fukushima College, Nagao 30, Iwaki, Fukushima 970 8034, Japan
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22
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Gil-Ramírez A, Smiderle FR, Morales D, Iacomini M, Soler-Rivas C. Strengths and weaknesses of the aniline-blue method used to test mushroom (1→3)-β-d-glucans obtained by microwave-assisted extractions. Carbohydr Polym 2019; 217:135-143. [DOI: 10.1016/j.carbpol.2019.04.051] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 04/12/2019] [Accepted: 04/12/2019] [Indexed: 12/13/2022]
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23
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Adachi Y, Ishii M, Kanno T, Tetsui J, Ishibashi KI, Yamanaka D, Miura N, Ohno N. N-Terminal (1→3)-β-d-Glucan Recognition Proteins from Insects Recognize the Difference in Ultra-Structures of (1→3)-β-d-Glucan. Int J Mol Sci 2019; 20:ijms20143498. [PMID: 31315292 PMCID: PMC6678557 DOI: 10.3390/ijms20143498] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 07/13/2019] [Accepted: 07/15/2019] [Indexed: 11/16/2022] Open
Abstract
Recognition of (1→3)-β-d-glucans (BGs) by invertebrate β-1,3-d-glucan recognition protein (BGRP) plays a significant role in the activation of Toll pathway and prophenoloxidase systems in insect host defense against fungal invasion. To examine the structure diversity of BGRPs for the recognition of physiochemically different BGs, the binding specificity of BGRPs cloned from four different insects to structure different BGs was characterized using ELISA. Recombinant BGRPs expressed as Fc-fusion proteins of human IgG1 bound to the solid phase of BGs. Based on the binding specificities, the BGRPs were categorized into two groups with different ultrastructures and binding characters; one group specifically binds BGs with triple-helical conformation, while the other group recognizes BGs with disordered conformations like single-helical or partially opened triple helix. The BGRPs from the silkworm and the Indian meal moth bound to the BGs with a triple-helical structure, whereas BGRPs from the red flour beetle and yellow mealworm beetle showed no binding to triple-helical BGs, but bound to alkaline-treated BGs that have a partially opened triple-helical conformation. This evidence suggests that the insect BGRPs can distinguish between different conformations of BGs and are equipped for determining the diversity of BG structures.
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Affiliation(s)
- Yoshiyuki Adachi
- Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan.
| | - Masaki Ishii
- Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
| | - Takashi Kanno
- Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
| | - Junko Tetsui
- Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
| | - Ken-Ichi Ishibashi
- Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
| | - Daisuke Yamanaka
- Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
| | - Noriko Miura
- Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
| | - Naohito Ohno
- Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
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Fu Y, Lin S, Lu M, Wei SY, Zhou J, Zhao L, Zhang Q, Lin DR, Liu YT, Chen H, Qin W, Wu DT. Quantitative Evaluation of Ultrasound-Assisted Extraction of 1,3-β-glucans from Dictyophora indusiata Using an Improved Fluorometric Assay. Polymers (Basel) 2019; 11:E864. [PMID: 31086008 PMCID: PMC6572555 DOI: 10.3390/polym11050864] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 04/27/2019] [Accepted: 05/07/2019] [Indexed: 11/17/2022] Open
Abstract
In the present study, an improved fluorometric assay based on aniline blue dye for the specific, accurate, and rapid quantification of 1,3-β-glucans in edible mushrooms was developed and fully validated. Furthermore, the improved method was successfully applied for the quantitative evaluation of water soluble 1,3-β-glucans extracted from Dictyophora indusiata by ultrasound-assisted extraction (UAE) with response surface methodology. Results showed that the improved method exhibited high specificity, accuracy, precision, repeatability, and stability, as well as a wide calibration range of 10-600 µg/mL (R2 > 99.9%). The maximum extraction yields of water soluble 1,3-β-glucans (1.20%) and total polysaccharides (5.41%) were achieved at the optimized extraction parameters as follows: ultrasound amplitude (56%), ultrasound extraction time (15 min), and ratio of liquid to raw material (22 mL/g). The results suggest that the improved fluorometric assay has great potential to be used as a routine method for the quantitative evaluation of 1,3-β-glucans in edible mushrooms and that the UAE method is effective for the extraction of 1,3-β-glucans from edible mushrooms.
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Affiliation(s)
- Yuan Fu
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
| | - Shang Lin
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
| | - Min Lu
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
| | - Si-Yu Wei
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
| | - Jia Zhou
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
| | - Li Zhao
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
| | - Qing Zhang
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
| | - De-Rong Lin
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
| | - Yun-Tao Liu
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
| | - Hong Chen
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
| | - Wen Qin
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
| | - Ding-Tao Wu
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, Sichuan, China.
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Abstract
The Schizosaccharomyces pombe cell wall is a rigid exoskeletal structure mainly composed of interlinked glucose polysaccharides and galactomannoproteins. It is essential for survival of the fission yeast, as it prevents cells from bursting from internal turgor pressure and protects them from mechanical injuries. Additionally, the cell wall determines the cell shape and, therefore, a better knowledge of cell wall structure and composition could provide valuable data in S. pombe morphogenetic studies. Here, we provide information about this structure and the current reliable methods for rapid analysis of the cell wall polymers by specific enzymatic and chemical degradations of purified cell walls.
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Affiliation(s)
- Pilar Pérez
- Instituto de Biología Funcional y Genómica, Consejo Superior de Investigaciones Científicas/Universidad de Salamanca, 37007 Salamanca, Spain
| | - Juan C Ribas
- Instituto de Biología Funcional y Genómica, Consejo Superior de Investigaciones Científicas/Universidad de Salamanca, 37007 Salamanca, Spain
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da Cunha MA, Albornoz S, Queiroz Santos V, Sánchez W, Barbosa-Dekker A, Dekker R. Structure and Biological Functions of d -Glucans and Their Applications. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2017. [DOI: 10.1016/b978-0-444-63930-1.00009-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Tyler HL, Haron MH, Pugh ND, Zhang J, Jackson CR, Pasco DS. Bacterial components are the major contributors to the macrophage stimulating activity exhibited by extracts of common edible mushrooms. Food Funct 2016; 7:4213-4221. [PMID: 27711863 DOI: 10.1039/c6fo00562d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Recent studies have indicated that a major contributor to the innate immune enhancing properties of some medicinal plants is derived from the cell wall components of bacteria colonizing these plants. The purpose of the current study was to assess if the bacteria present within edible and medicinal mushrooms substantially contribute to the innate immune stimulating potential of these mushrooms. Whole mushrooms from thirteen types of edible fungi and individual parts from Agaricus bisporus were analyzed for in vitro macrophage activation as well as bacterial lipopolysaccharides (LPS) content, cell load, and community composition. Substantial variation between samples was observed in macrophage activation (over 500-fold), total bacterial load (over 200-fold), and LPS content (over 10 million-fold). Both LPS content (ρ = 0.832, p < 0.0001) and total bacterial load (ρ = 0.701, p < 0.0001) correlated significantly with macrophage activation in the whole mushroom extracts. Extract activity was negated by treatment with NaOH, conditions that inactivate LPS and other bacterial components. Significant correlations between macrophage activation and total bacterial load (ρ = 0.723, p = 0.0001) and LPS content (ρ = 0.951, p < 0.0001) were also observed between different tissues of Agaricus bisporus. Pseudomonas and Flavobacterium were the most prevalent genera identified in the different tissue parts and these taxa were significantly correlated with in vitro macrophage activation (ρ = 0.697, p < 0.0001 and ρ = 0.659, p = 0.0001, respectively). These results indicate that components derived from mushroom associated bacteria contribute substantially to the innate immune enhancing activity exhibited by mushrooms and may result in similar therapeutic actions as reported for ingestion of bacterial preparations such as probiotics.
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Affiliation(s)
- Heather L Tyler
- Crop Production Systems Research Unit, USDA Agricultural Research Service, P.O. Box 350, Stoneville, MS 32776, USA and Department of Biology, The University of Mississippi, P.O. Box 1848, University, MS 38677-1848, USA
| | - Mona H Haron
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, P.O. Box 1848, University, MS 38677-1848, USA
| | - Nirmal D Pugh
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, P.O. Box 1848, University, MS 38677-1848, USA
| | - Jin Zhang
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, P.O. Box 1848, University, MS 38677-1848, USA
| | - Colin R Jackson
- Department of Biology, The University of Mississippi, P.O. Box 1848, University, MS 38677-1848, USA
| | - David S Pasco
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, The University of Mississippi, P.O. Box 1848, University, MS 38677-1848, USA and Department of BioMolecular Sciences, School of Pharmacy, The University of Mississippi, P.O. Box 1848, University, MS 38677-1848, USA.
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Marchetti R, Perez S, Arda A, Imberty A, Jimenez‐Barbero J, Silipo A, Molinaro A. "Rules of Engagement" of Protein-Glycoconjugate Interactions: A Molecular View Achievable by using NMR Spectroscopy and Molecular Modeling. ChemistryOpen 2016; 5:274-96. [PMID: 27547635 PMCID: PMC4981046 DOI: 10.1002/open.201600024] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Indexed: 12/20/2022] Open
Abstract
Understanding the dynamics of protein-ligand interactions, which lie at the heart of host-pathogen recognition, represents a crucial step to clarify the molecular determinants implicated in binding events, as well as to optimize the design of new molecules with therapeutic aims. Over the last decade, advances in complementary biophysical and spectroscopic methods permitted us to deeply dissect the fine structural details of biologically relevant molecular recognition processes with high resolution. This Review focuses on the development and use of modern nuclear magnetic resonance (NMR) techniques to dissect binding events. These spectroscopic methods, complementing X-ray crystallography and molecular modeling methodologies, will be taken into account as indispensable tools to provide a complete picture of protein-glycoconjugate binding mechanisms related to biomedicine applications against infectious diseases.
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Affiliation(s)
- Roberta Marchetti
- Department of Chemical SciencestUniversity of Napoli Federico IIVia Cintia 480126NapoliItaly
| | - Serge Perez
- Department Molecular Pharmacochemistry UMR 5063CNRS and University of GrenobleAlpes, BP 5338041 Grenoble cedex 9France
| | - Ana Arda
- Bizkaia Technological ParkCIC bioGUNEBuilding 801A-148160Derio-BizkaiaSpain
| | - Anne Imberty
- Centre de Recherche sur les CNRSand University of Grenoble Macromolécules Végétales, UPR 5301Alpes, BP 5338041Grenoble cedex 9France
| | | | - Alba Silipo
- Department of Chemical SciencestUniversity of Napoli Federico IIVia Cintia 480126NapoliItaly
| | - Antonio Molinaro
- Department of Chemical SciencestUniversity of Napoli Federico IIVia Cintia 480126NapoliItaly
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Antifungal Properties of Cationic Phenylene Ethynylenes and Their Impact on β-Glucan Exposure. Antimicrob Agents Chemother 2016; 60:4519-29. [PMID: 27161628 DOI: 10.1128/aac.00317-16] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 05/04/2016] [Indexed: 02/06/2023] Open
Abstract
Candida species are the cause of many bloodstream infections through contamination of indwelling medical devices. These infections account for a 40% mortality rate, posing a significant risk to immunocompromised patients. Traditional treatments against Candida infections include amphotericin B and various azole treatments. Unfortunately, these treatments are associated with high toxicity, and resistant strains have become more prevalent. As a new frontier, light-activated phenylene ethynylenes have shown promising biocidal activity against Gram-positive and -negative bacterial pathogens, as well as the environmental yeast Saccharomyces cerevisiae In this study, we monitored the viability of Candida species after treatment with a cationic conjugated polymer [poly(p-phenylene ethynylene); PPE] or oligomer ["end-only" oligo(p-phenylene ethynylene); EO-OPE] by flow cytometry in order to explore the antifungal properties of these compounds. The oligomer was found to disrupt Candida albicans yeast membrane integrity independent of light activation, while PPE is able to do so only in the presence of light, allowing for some control as to the manner in which cytotoxic effects are induced. The contrast in killing efficacy between the two compounds is likely related to their size difference and their intrinsic abilities to penetrate the fungal cell wall. Unlike EO-OPE-DABCO (where DABCO is quaternized diazabicyclo[2,2,2]octane), PPE-DABCO displayed a strong propensity to associate with soluble β-glucan, which is expected to inhibit its ability to access and perturb the inner cell membrane of Candida yeast. Furthermore, treatment with PPE-DABCO unmasked Candida albicans β-glucan and increased phagocytosis by Dectin-1-expressing HEK-293 cells. In summary, cationic phenylene ethynylenes show promising biocidal activity against pathogenic Candida yeast cells while also exhibiting immunostimulatory effects.
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Oda M, Tanabe Y, Noda M, Inaba S, Krayukhina E, Fukada H, Uchiyama S. Structural and binding properties of laminarin revealed by analytical ultracentrifugation and calorimetric analyses. Carbohydr Res 2016; 431:33-8. [PMID: 27267066 DOI: 10.1016/j.carres.2016.05.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 05/18/2016] [Accepted: 05/23/2016] [Indexed: 10/21/2022]
Abstract
One of the β-1,3-glucans, laminarin, has been widely used as a substrate for enzymes including endo-1,3-β-glucanase. To obtain quantitative information about the molecular interaction between laminarin and endo-1,3-β-glucanase, the structural properties of laminarin should be determined. The results from pioneering work using analytical ultracentrifugation for carbohydrate analysis showed that laminarin from Laminaria digitata predominantly exists as a single-chain species with approximately 5% of triple-helical species. Differential scanning calorimetry experiments did not show a peak assignable to the transition from triple-helix to single-chain, supporting the notion that a large proportion of laminarin is the single-chain species. The interaction of laminarin with an inactive variant of endo-1,3-β-glucanase from Cellulosimicrobium cellulans, E119A, was quantitatively analyzed using isothermal titration calorimetry. The binding was enthalpically driven and the binding affinity was approximately 10(6) M(-1). The results from binding stoichiometric analysis indicated that on average, E119A binds to laminarin in a 2:1 ratio. This seems to be reasonable, because laminarin mainly exists as a monomer, the apparent molecular mass of laminarin is 3.6 kDa, and E119A would have substrate-binding subsites corresponding to 6 glucose units. The analytical ultracentrifugation experiments could detect different complex species of laminarin and endo-1,3-β-glucanase.
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Affiliation(s)
- Masayuki Oda
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5, Hangi-cho, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan.
| | - Yoichi Tanabe
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5, Hangi-cho, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Masanori Noda
- U-Medico Inc., 1-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Satomi Inaba
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5, Hangi-cho, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | | | - Harumi Fukada
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Susumu Uchiyama
- U-Medico Inc., 1-1, Yamadaoka, Suita, Osaka 565-0871, Japan; Graduate School of Engineering, Osaka University, 1-1, Yamadaoka, Suita, Osaka 565-0871, Japan
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Legentil L, Paris F, Ballet C, Trouvelot S, Daire X, Vetvicka V, Ferrières V. Molecular Interactions of β-(1→3)-Glucans with Their Receptors. Molecules 2015; 20:9745-66. [PMID: 26023937 PMCID: PMC6272582 DOI: 10.3390/molecules20069745] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 05/20/2015] [Indexed: 12/01/2022] Open
Abstract
β-(1→3)-Glucans can be found as structural polysaccharides in cereals, in algae or as exo-polysaccharides secreted on the surfaces of mushrooms or fungi. Research has now established that β-(1→3)-glucans can trigger different immune responses and act as efficient immunostimulating agents. They constitute prevalent sources of carbons for microorganisms after subsequent recognition by digesting enzymes. Nevertheless, mechanisms associated with both roles are not yet clearly understood. This review focuses on the variety of elucidated molecular interactions that involve these natural or synthetic polysaccharides and their receptors, i.e., Dectin-1, CR3, glycolipids, langerin and carbohydrate-binding modules.
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MESH Headings
- Adjuvants, Immunologic/genetics
- Adjuvants, Immunologic/metabolism
- Agaricales/genetics
- Agaricales/metabolism
- Antigens, CD/genetics
- Antigens, CD/immunology
- Edible Grain/genetics
- Edible Grain/metabolism
- Gene Expression Regulation
- Glucan 1,3-beta-Glucosidase/genetics
- Glucan 1,3-beta-Glucosidase/immunology
- Glycolipids/immunology
- Glycolipids/metabolism
- Humans
- Lectins, C-Type/genetics
- Lectins, C-Type/immunology
- Macrophage-1 Antigen/genetics
- Macrophage-1 Antigen/immunology
- Mannose-Binding Lectins/genetics
- Mannose-Binding Lectins/immunology
- Receptors, Scavenger/genetics
- Receptors, Scavenger/immunology
- Signal Transduction
- Stramenopiles/genetics
- Stramenopiles/metabolism
- beta-Glucans/metabolism
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Affiliation(s)
- Laurent Legentil
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, 11 Allée de Beaulieu, CS 50837, 35708 Rennes Cedex 7, France.
- Université européenne de Bretagne, F-35000 Rennes, France.
| | - Franck Paris
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, 11 Allée de Beaulieu, CS 50837, 35708 Rennes Cedex 7, France.
- Université européenne de Bretagne, F-35000 Rennes, France.
| | - Caroline Ballet
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, 11 Allée de Beaulieu, CS 50837, 35708 Rennes Cedex 7, France.
- Université européenne de Bretagne, F-35000 Rennes, France.
| | - Sophie Trouvelot
- INRA, UMR AgroSup/INRA/uB 1347 Agroécologie, Pôle Interactions Plantes-Microorganismes-ERL CNRS 6300, 21065 Dijon Cedex, France.
| | - Xavier Daire
- INRA, UMR AgroSup/INRA/uB 1347 Agroécologie, Pôle Interactions Plantes-Microorganismes-ERL CNRS 6300, 21065 Dijon Cedex, France.
| | - Vaclav Vetvicka
- Department of Pathology, University of Louisville, Louisville, KY 40202, USA.
| | - Vincent Ferrières
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, 11 Allée de Beaulieu, CS 50837, 35708 Rennes Cedex 7, France.
- Université européenne de Bretagne, F-35000 Rennes, France.
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Bzducha-Wróbel A, Błażejak S, Kawarska A, Stasiak-Różańska L, Gientka I, Majewska E. Evaluation of the efficiency of different disruption methods on yeast cell wall preparation for β-glucan isolation. Molecules 2014; 19:20941-61. [PMID: 25517337 PMCID: PMC6271764 DOI: 10.3390/molecules191220941] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 12/01/2014] [Accepted: 12/02/2014] [Indexed: 11/30/2022] Open
Abstract
Selected methods for yeast cell disruption were evaluated to establish their suitability for cell wall preparation in the process of β-glucan isolation. The effect of different disruption methods on contents of total saccharides, β-glucans and proteins in the produced cell walls preparations was analyzed. The degree of cell wall purification from intracellular components was established on the basis of the ratio of solubilised material. The investigated methods included: cell exposure to hot water (autoclaving), thermally-induced autolysis, homogenization in a bead mill, sonication and their combinations. Experimental systems were prepared in water (pH 5.0 and pH 7.0) and Tris-HCl buffer (pH 8.0). The Saccharomyces cerevisiae yeast cell wall preparations with the highest degree of cytosol component release and purification of β-glucans were produced by 30 min of cell homogenization with zirconium-glass beads (0.5 mm in diameter). This was confirmed by the highest ratio of solubilised material (approx. 64%–67%). The thus-produced preparations contained ca. 60% of total saccharides, 13%–14% of β(1,3)/(1,6)-glucans, and approx. 35% of crude proteins. Similar results were obtained after autolysis coupled with bead milling as well as with sonication, but the time required for these processes was more than 24 h. Homogenization in a bead mill could be valuable for general isolation procedures because allows one to eliminate the different autolytic activity of various yeast strains.
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Affiliation(s)
- Anna Bzducha-Wróbel
- Department of Biotechnology, Microbiology and Food Evaluation, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159c, Warsaw 02-776, Poland.
| | - Stanisław Błażejak
- Department of Biotechnology, Microbiology and Food Evaluation, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159c, Warsaw 02-776, Poland.
| | - Anna Kawarska
- Department of Biotechnology, Microbiology and Food Evaluation, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159c, Warsaw 02-776, Poland.
| | - Lidia Stasiak-Różańska
- Department of Biotechnology, Microbiology and Food Evaluation, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159c, Warsaw 02-776, Poland.
| | - Iwona Gientka
- Department of Biotechnology, Microbiology and Food Evaluation, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159c, Warsaw 02-776, Poland.
| | - Ewa Majewska
- Department of Chemistry, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159c, Warsaw 02-776, Poland.
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Pro D, Huguet S, Arkoun M, Nugier-Chauvin C, Garcia-Mina JM, Ourry A, Wolbert D, Yvin JC, Ferrières V. From algal polysaccharides to cyclodextrins to stabilize a urease inhibitor. Carbohydr Polym 2014; 112:145-51. [DOI: 10.1016/j.carbpol.2014.05.075] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 05/16/2014] [Accepted: 05/17/2014] [Indexed: 11/16/2022]
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Batbayar S, Lee DH, Kim HW. Immunomodulation of Fungal β-Glucan in Host Defense Signaling by Dectin-1. Biomol Ther (Seoul) 2014; 20:433-45. [PMID: 24009832 PMCID: PMC3762275 DOI: 10.4062/biomolther.2012.20.5.433] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Accepted: 09/19/2012] [Indexed: 01/23/2023] Open
Abstract
During the course of evolution, animals encountered the harmful effects of fungi, which are strong pathogens. Therefore, they have developed powerful mechanisms to protect themselves against these fungal invaders. β-Glucans are glucose polymers of a linear β(1,3)-glucan backbone with β(1,6)-linked side chains. The immunostimulatory and antitumor activities of β-glucans have been reported; however, their mechanisms have only begun to be elucidated. Fungal and particulate β-glucans, despite their large size, can be taken up by the M cells of Peyer's patches, and interact with macrophages or dendritic cells (DCs) and activate systemic immune responses to overcome the fungal infection. The sampled β-glucans function as pathogen-associated molecular patterns (PAMPs) and are recognized by pattern recognition receptors (PRRs) on innate immune cells. Dectin-1 receptor systems have been incorporated as the PRRs of β-glucans in the innate immune cells of higher animal systems, which function on the front line against fungal infection, and have been exploited in cancer treatments to enhance systemic immune function. Dectin-1 on macrophages and DCs performs dual functions: internalization of β-glucan-containing particles and transmittance of its signals into the nucleus. This review will depict in detail how the physicochemical nature of β-glucan contributes to its immunostimulating effect in hosts and the potential uses of β-glucan by elucidating the dectin-1 signal transduction pathway. The elucidation of β-glucan and its signaling pathway will undoubtedly open a new research area on its potential therapeutic applications, including as immunostimulants for antifungal and anti-cancer regimens.
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Affiliation(s)
- Sainkhuu Batbayar
- Department of Life Sciences, BK21 Cellular Stress Team, University of Seoul, Seoul 130-743, Korea
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NMR study of short β(1-3)-glucans provides insights into the structure and interaction with Dectin-1. Glycoconj J 2013; 31:199-207. [PMID: 24293021 DOI: 10.1007/s10719-013-9510-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Revised: 10/30/2013] [Accepted: 10/31/2013] [Indexed: 10/26/2022]
Abstract
β(1-3)-Glucans, abundant in fungi, have the potential to activate the innate immune response against various pathogens. Although part of the action is exerted through the C-type lectin-like receptor Dectin-1, details of the interaction mechanism with respect to glucan chain-length remain unclear. In this study, we investigated a set of short β(1-3)-glucans with varying degree of polymerization (DP); 3, 6, 7, 16, and laminarin (average DP; 25), analyzing the relationship between the structure and interaction with the C-type lectin-like domain (CTLD) of Dectin-1. The interaction of short β(1-3)-glucans (DP6, DP16, and laminarin) with the CTLD of Dectin-1 was systematically analyzed by (1)H-NMR titration as well as by saturation transfer difference (STD)-NMR. The domain interacted weakly with DP6, moderately with DP16 and strongly with laminarin, the latter plausibly forming oligomeric protein-laminarin complexes. To obtain structural insights of short β(1-3)-glucans, the exchange rates of hydroxy protons were analyzed by deuterium induced (13)C-NMR isotope shifts. The hydroxy proton at C4 of laminarin has slower exchange with the solvent than those of DP7 and DP16, suggesting that laminarin has a secondary structure. Diffusion ordered spectroscopy revealed that none of the short β(1-3)-glucans including laminarin forms a double or triple helix in water. Insights into the interaction of the short β(1-3)-glucans with Dectin-1 CTLD provide a basis to understand the molecular mechanisms of β-glucan recognition and cellular activation by Dectin-1.
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Fu D, Pei D, Huang C, Liu Y, Du X, Sun H. Effect of desensitising paste containing 8% arginine and calcium carbonate on biofilm formation of Streptococcus mutans in vitro. J Dent 2013; 41:619-27. [PMID: 23643848 DOI: 10.1016/j.jdent.2013.04.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2012] [Revised: 04/21/2013] [Accepted: 04/22/2013] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVES To evaluate the influence of desensitising paste containing 8% arginine and calcium carbonate (Ar-Ca) on biofilm formation on dentine. METHODS Dentine discs were cut from extracted third molars and divided into the following three groups: no treatment, pumice treatment and Ar-Ca treatment. Surface topography and roughness were examined using scanning electron microscopy (SEM) and non-contact 3D surface profiler. After sterilisation, samples were incubated with Streptococcus mutans (S. mutans) for 4 h, 24 h and 72 h. Bacterial adhesion and biofilm formation were analysed using SEM, whereas MTT and lactic acid production assays were used to analyse the metabolic activity of S. mutans. RESULTS After polishing with either pumice or Ar-Ca, the surfaces of the samples became smoother than in the control group. The Ra values of the three experimental groups decreased significantly to 0.43 μm, 0.3 μm and 0.26 μm, respectively. Compared to the control group, fewer bacteria adhered to the dentine surface in the Ar-Ca group, while biofilm thickness decreased significantly for both groups after incubating for 24 h and 72 h. MTT and lactic acid production levers also showed a significant reduction in the Ar-Ca group. CONCLUSIONS Ar-Ca appears to present antibiofilm efficacy and may provide a promising approach to combat bacterial infection in hypersensitive dentinal lesions. CLINICAL SIGNIFICANCE As a clinical application of desensitising polishing paste, the paste containing 8% arginine and calcium carbonate could also inhibit the biofilm formation effectively.
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Affiliation(s)
- Dongjie Fu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), School & Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
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Viñarta SC, Delgado OD, Figueroa LI, Fariña JI. Effects of thermal, alkaline and ultrasonic treatments on scleroglucan stability and flow behavior. Carbohydr Polym 2013; 94:496-504. [DOI: 10.1016/j.carbpol.2013.01.063] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 01/11/2013] [Accepted: 01/20/2013] [Indexed: 10/27/2022]
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Dai H, Hiromasa Y, Takahashi D, VanderVelde D, Fabrick JA, Kanost MR, Krishnamoorthi R. An initial event in the insect innate immune response: structural and biological studies of interactions between β-1,3-glucan and the N-terminal domain of β-1,3-glucan recognition protein. Biochemistry 2013; 52:161-70. [PMID: 23237493 PMCID: PMC3542770 DOI: 10.1021/bi301440p] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In response to invading microorganisms, insect β-1,3-glucan recognition protein (βGRP), a soluble receptor in the hemolymph, binds to the surfaces of bacteria and fungi and activates serine protease cascades that promote destruction of pathogens by means of melanization or expression of antimicrobial peptides. Here we report on the nuclear magnetic resonance (NMR) solution structure of the N-terminal domain of βGRP (N-βGRP) from Indian meal moth (Plodia interpunctella), which is sufficient to activate the prophenoloxidase (proPO) pathway resulting in melanin formation. NMR and isothermal calorimetric titrations of N-βGRP with laminarihexaose, a glucose hexamer containing β-1,3 links, suggest a weak binding of the ligand. However, addition of laminarin, a glucose polysaccharide (~6 kDa) containing β-1,3 and β-1,6 links that activates the proPO pathway, to N-βGRP results in the loss of NMR cross-peaks from the backbone (15)N-(1)H groups of the protein, suggesting the formation of a large complex. Analytical ultracentrifugation (AUC) studies of formation of the N-βGRP-laminarin complex show that ligand binding induces self-association of the protein-carbohydrate complex into a macro structure, likely containing six protein and three laminarin molecules (~102 kDa). The macro complex is quite stable, as it does not undergo dissociation upon dilution to submicromolar concentrations. The structural model thus derived from this study for the N-βGRP-laminarin complex in solution differs from the one in which a single N-βGRP molecule has been proposed to bind to a triple-helical form of laminarin on the basis of an X-ray crystallographic structure of the N-βGRP-laminarihexaose complex [Kanagawa, M., Satoh, T., Ikeda, A., Adachi, Y., Ohno, N., and Yamaguchi, Y. (2011) J. Biol. Chem. 286, 29158-29165]. AUC studies and phenoloxidase activation measurements conducted with the designed mutants of N-βGRP indicate that electrostatic interactions involving Asp45, Arg54, and Asp68 between the ligand-bound protein molecules contribute in part to the stability of the N-βGRP-laminarin macro complex and that a decreased stability is accompanied by a reduced level of activation of the proPO pathway. An increased level of β-1,6 branching in laminarin also results in destabilization of the macro complex. These novel findings suggest that ligand-induced self-association of the βGRP-β-1,3-glucan complex may form a platform on a microbial surface for recruitment of downstream proteases, as a means of amplification of the initial signal of pathogen recognition for the activation of the proPO pathway.
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Affiliation(s)
- Huaien Dai
- Department of Biochemistry, Kansas State University, Manhattan, KS 66506
| | - Yasuaki Hiromasa
- Department of Biochemistry, Kansas State University, Manhattan, KS 66506
| | - Daisuke Takahashi
- Department of Biochemistry, Kansas State University, Manhattan, KS 66506
| | | | - Jeffrey A. Fabrick
- Department of Biochemistry, Kansas State University, Manhattan, KS 66506
| | - Michael R. Kanost
- Department of Biochemistry, Kansas State University, Manhattan, KS 66506
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Satitmanwiwat S, Ratanakhanokchai K, Laohakunjit N, Chao LK, Chen ST, Pason P, Tachaapaikoon C, Kyu KL. Improved purity and immunostimulatory activity of β-(1→3)(1→6)-glucan from Pleurotus sajor-caju using cell wall-degrading enzymes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:5423-5430. [PMID: 22563990 DOI: 10.1021/jf300354x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The objective of this work was to improve the purity of β-(1→3)(1→6)-glucan in the native triple helical structure from the fruiting bodies of Pleurotus sajor-caju for effective biological function using cell wall-degrading enzymes. A crude carbohydrate was extracted with hot water, then treated with crude xylanase and cellulase from Paenibacillus curdlanolyticus B-6. β-Glucan in the extract was purified to homogeneity with a single and symmetrical peak using 650M DEAE Toyopearl and Sepharose CL-6B column chromatography. The purity of β-glucan was confirmed by high-performance size-exclusion chromatography. Purified β-glucan was obtained at a purity of up to 90.2%. The Congo red reaction and atomic force microscopy indicated that the purified β-glucan exhibited a triple helix conformation. Purified β-glucan was able to effectively up-regulate the functions of macrophages such as nitric oxide (NO) and tumor necrosis factor (TNF-α) production.
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Affiliation(s)
- Saranya Satitmanwiwat
- Division of Biochemical Technology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
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Kanagawa M, Satoh T, Ikeda A, Adachi Y, Ohno N, Yamaguchi Y. Structural insights into recognition of triple-helical beta-glucans by an insect fungal receptor. J Biol Chem 2011; 286:29158-29165. [PMID: 21697086 DOI: 10.1074/jbc.m111.256701] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The innate ability to detect pathogens is achieved by pattern recognition receptors, which recognize non-self-components such as β1,3-glucan. β1,3-Glucans form a triple-helical structure stabilized by interchain hydrogen bonds. β1,3-Glucan recognition protein (βGRP)/gram-negative bacteria-binding protein 3 (GNBP3), one of the pattern recognition receptors, binds to long, structured β1,3-glucan to initiate innate immune response. However, binding details and how specificity is achieved in such receptors remain important unresolved issues. We solved the crystal structures of the N-terminal β1,3-glucan recognition domain of βGRP/GNBP3 (βGRP-N) in complex with the β1,3-linked glucose hexamer, laminarihexaose. In the crystals, three structured laminarihexaoses simultaneously interact through six glucose residues (two from each chain) with one βGRP-N. The spatial arrangement of the laminarihexaoses bound to βGRP-N is almost identical to that of a β1,3-glucan triple-helical structure. Therefore, our crystallographic structures together with site-directed mutagenesis data provide a structural basis for the unique recognition by such receptors of the triple-helical structure of β1,3-glucan.
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Affiliation(s)
- Mayumi Kanagawa
- Structural Glycobiology Team, Systems Glycobiology Research Group, Chemical Biology Department, RIKEN, Advanced Science Institute, 2-1 Hirosawa Wako, Saitama 351-0198, Japan and
| | - Tadashi Satoh
- Structural Glycobiology Team, Systems Glycobiology Research Group, Chemical Biology Department, RIKEN, Advanced Science Institute, 2-1 Hirosawa Wako, Saitama 351-0198, Japan and
| | - Akemi Ikeda
- Structural Glycobiology Team, Systems Glycobiology Research Group, Chemical Biology Department, RIKEN, Advanced Science Institute, 2-1 Hirosawa Wako, Saitama 351-0198, Japan and
| | - Yoshiyuki Adachi
- Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Naohito Ohno
- Laboratory for Immunopharmacology of Microbial Products, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Yoshiki Yamaguchi
- Structural Glycobiology Team, Systems Glycobiology Research Group, Chemical Biology Department, RIKEN, Advanced Science Institute, 2-1 Hirosawa Wako, Saitama 351-0198, Japan and.
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Barsanti L, Passarelli V, Evangelista V, Frassanito AM, Gualtieri P. Chemistry, physico-chemistry and applications linked to biological activities of β-glucans. Nat Prod Rep 2011; 28:457-66. [DOI: 10.1039/c0np00018c] [Citation(s) in RCA: 158] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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beta-(1,3)-Glucan exposure assessment by passive airborne dust sampling and new sensitive immunoassays. Appl Environ Microbiol 2009; 76:1158-67. [PMID: 20038709 DOI: 10.1128/aem.01486-09] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Associations between house dust-associated beta-(1,3)-glucan exposure and airway inflammatory reactions have been reported, while such exposures in early childhood have been suggested to protect against asthma and wheezing. Most epidemiological studies have used reservoir dust samples and an inhibition enzyme immunoassay (EIA) for beta-(1,3)-glucan exposure assessment. The objective of this study was to develop inexpensive but highly sensitive enzyme immunoassays to measure airborne beta-(1,3)-glucans in low-exposure environments, like homes. Specificities of available anti-beta-(1,3)-glucan antibodies were defined by direct and inhibition experiments. Three suitable antibody combinations were selected for sandwich EIAs. beta-(1,3)-Glucans in passive airborne dust collected with an electrostatic dust fall collector (EDC) and floor dust from seven homes were measured with the three EIAs. Floor dust samples were additionally analyzed in the inhibition EIA. The sandwich EIAs were sensitive enough for airborne glucan measurement and showed different specificities for commercial glucans, while the beta-(1,3)-glucan levels in house dust samples correlated strongly. The feasibility of measuring glucans in airborne dust with the recently introduced EDC method was further investigated by selecting the most suitable of the three EIAs to measure and compare beta-(1,3)-glucan levels in the EDC and in floor and actively collected airborne dust samples of the previously performed EDC validation study. The EDC beta-(1,3)-glucan levels correlated moderately with beta-(1,3)-glucans in actively collected airborne dust and floor dust samples, while the glucan levels in the airborne dust and floor dust samples did not correlate. The combination of the newly developed beta-(1,3)-glucan sandwich EIA with EDC sampling now allows assessment in large-scale population studies of exposure to airborne beta-(1,3)-glucans in homes or other low-exposure environments.
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Solution structure of the silkworm betaGRP/GNBP3 N-terminal domain reveals the mechanism for beta-1,3-glucan-specific recognition. Proc Natl Acad Sci U S A 2009; 106:11679-84. [PMID: 19561300 DOI: 10.1073/pnas.0901671106] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The beta-1,3-glucan recognition protein (betaGRP)/Gram-negative bacteria-binding protein 3 (GNBP3) is a crucial pattern-recognition receptor that specifically binds beta-1,3-glucan, a component of fungal cell walls. It evokes innate immunity against fungi through activation of the prophenoloxidase (proPO) cascade and Toll pathway in invertebrates. The betaGRP consists of an N-terminal beta-1,3-glucan-recognition domain and a C-terminal glucanase-like domain, with the former reported to be responsible for the proPO cascade activation. This report shows the solution structure of the N-terminal beta-1,3-glucan recognition domain of silkworm betaGRP. Although the N-terminal domain of betaGRP has a beta-sandwich fold, often seen in carbohydrate-binding modules, both NMR titration experiments and mutational analysis showed that betaGRP has a binding mechanism which is distinct from those observed in previously reported carbohydarate-binding domains. Our results suggest that betaGRP is a beta-1,3-glucan-recognition protein that specifically recognizes a triple-helical structure of beta-1,3-glucan.
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Giese EC, Dekker RF, Barbosa AM, da Silva R. Triple helix conformation of botryosphaeran, a (1→3;1→6)-β-d-glucan produced by Botryosphaeria rhodina MAMB-05. Carbohydr Polym 2008. [DOI: 10.1016/j.carbpol.2008.04.038] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sletmoen M, Stokke BT. Higher order structure of (1,3)-beta-D-glucans and its influence on their biological activities and complexation abilities. Biopolymers 2008; 89:310-21. [PMID: 18186085 DOI: 10.1002/bip.20920] [Citation(s) in RCA: 120] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
(1,3)-beta-D-Glucans form a group of biologically active biopolymers that exist in different structural organizations depending on the environmental conditions. The biological effect of (1,3)-beta-D-glucans is a core issue stimulating large research efforts of the molecular properties and their consequences for action as biological response modifiers. The fascination for these molecules increased further following the finding of their ability to form complexes of defined geometry with a number of structures, ranging from linear architectures as polymers or carbon nanotubes, to globular structures as gold particles or dye molecules. The fascinating information concerning the relationship between sample treatment history and molecular organization has not yet reached out to all the contributors within the field, resulting in unnecessary apparent inconsistencies in the literature. In addition to environmental conditions, the sample history is known to influence on the precise structural organization of these molecules. The present knowledge related to the structure of native as well as denatured, renatured and annealed (1,3)-beta-D-glucans is reviewed. The influence of their structural organization on the biological activity and complexation abilities is discussed, and some factors hindering progress in the understanding of their biological effects or complexation abilities are pointed out.
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Affiliation(s)
- Marit Sletmoen
- Biophysics and Medical Technology, Department of Physics, The Norwegian University of Science and Technology, NTNU, Trondheim, Norway
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Bae B, Ohene-Adjei S, Kocherginskaya S, Mackie RI, Spies MA, Cann IK, Nair SK. Molecular Basis for the Selectivity and Specificity of Ligand Recognition by the Family 16 Carbohydrate-binding Modules from Thermoanaerobacterium polysaccharolyticum ManA. J Biol Chem 2008; 283:12415-25. [DOI: 10.1074/jbc.m706513200] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Cortés JCG, Konomi M, Martins IM, Muñoz J, Moreno MB, Osumi M, Durán A, Ribas JC. The (1,3)β-d-glucan synthase subunit Bgs1p is responsible for the fission yeast primary septum formation. Mol Microbiol 2007; 65:201-17. [PMID: 17581129 DOI: 10.1111/j.1365-2958.2007.05784.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cytokinesis is a crucial event in the cell cycle of all living cells. In fungal cells, it requires co-ordinated contraction of an actomyosin ring and synthesis of both plasmatic membrane and a septum structure that will constitute the new cell wall end. Schizosaccharomyces pombe contains four essential putative (1,3)beta-d-glucan synthase catalytic subunits, Bgs1p to Bgs4p. Here we examined the function of Bgs1p in septation by studying the lethal phenotypes of bgs1(+) shut-off and bgs1Delta cells and demonstrated that Bgs1p is responsible and essential for linear (1,3)beta-d-glucan and primary septum formation. bgs1(+) shut-off generates a more than 300-fold Bgs1p reduction, but the septa still present large amounts of disorganized linear (1,3)beta-d-glucan and partial primary septa. Conversely, both structures are absent in bgs1Delta cells, where there is no Bgs1p. The septum analysis of bgs1(+)-repressed cells indicates that linear (1,3)beta-d-glucan is necessary but not sufficient for primary septum formation. Linear (1,3)beta-d-glucan is the polysaccharide that specifically interacts with the fluorochrome Calcofluor white in fission yeast. We also show that in the absence of Bgs1p abnormal septa are formed, but the cells cannot separate and eventually die.
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Affiliation(s)
- Juan Carlos G Cortés
- Instituto de Microbiología Bioquímica, Consejo Superior de Investigaciones Científicas (CSIC)/Universidad de Salamanca, 37007 Salamanca, Spain
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Moradali MF, Mostafavi H, Ghods S, Hedjaroude GA. Immunomodulating and anticancer agents in the realm of macromycetes fungi (macrofungi). Int Immunopharmacol 2007; 7:701-24. [PMID: 17466905 DOI: 10.1016/j.intimp.2007.01.008] [Citation(s) in RCA: 324] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2006] [Revised: 01/07/2007] [Accepted: 01/08/2007] [Indexed: 11/15/2022]
Abstract
Nowadays macrofungi are distinguished as important natural resources of immunomodulating and anticancer agents and with regard to the increase in diseases involving immune dysfunction, cancer, autoimmune conditions in recent years, applying such immunomodulator agents especially with the natural original is vital. These compounds belong mainly to polysaccharides especially beta-d-glucan derivates, glycopeptide/protein complexes (polysaccharide-peptide/protein complexes), proteoglycans, proteins and triterpenoids. Among polysaccharides, beta(1-->3)-d-glucans and their peptide/protein derivates and among proteins, fungal immunomodulatory proteins (Fips) have more important role in immunomodulating and antitumor activities. Immunomodulating and antitumor activity of these metabolites related to their effects to act of immune effecter cells such as hematpoietic stem cells, lymphocytes, macrophages, T cells, dendritic cells (DCs), and natural killer (NK) cells involved in the innate and adaptive immunity, resulting in the production of biologic response modifiers. In this review we have introduced the medicinal mushrooms' metabolites with immunomoduling and antitumor activities according to immunological evidences and then demonstrated their effects on innate and adaptive immunity and also the mechanisms of activation of immune responses and signaling cascade. In addition, their molecular structure and their relation to these activities have been shown. The important instances of these metabolites along with their immunomodulating and/or antitumor activities isolated from putative medicinal mushrooms are also introduced.
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Gagnon MA, Lafleur M. From curdlan powder to the triple helix gel structure: an attenuated total reflection-infrared study of the gelation process. APPLIED SPECTROSCOPY 2007; 61:374-8. [PMID: 17456255 DOI: 10.1366/000370207780466136] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Infrared spectroscopy was used to probe the hydration and gelation of curdlan, a linear polysaccharide built from repeating units of (1-->3)-beta-D-glucose. The spectra have been recorded using a temperature-controlled attenuated total reflection (ATR) device. Thermal gelation of curdlan could therefore be followed in situ and in real time. The transformation of the low-set gel, mainly formed with single helices, into a high-set gel, associated with a triple helix structure, could be directly observed. The relative intensities and positions of characteristic absorption bands in the C-O region (1200-850 cm-1) were found to be representative of the gel structure, as they are believed to be sensitive to the helical conformation of the polymer chains. Infrared (IR) spectroscopy is shown to be a useful tool for rapid and efficient characterization of curdlan gels.
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Affiliation(s)
- Marc-André Gagnon
- Department of Chemistry, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Qc, Canada H3C 3J7
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