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Ogata M, Onoda T, Wakamatsu T. In situ characterization of the agglutination of lectins via cross-linking of carbohydrates by time-resolved measurement of forward static light scattering. Biosci Biotechnol Biochem 2023; 87:1036-1044. [PMID: 37348468 DOI: 10.1093/bbb/zbad082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 06/13/2023] [Indexed: 06/24/2023]
Abstract
We present real-time observations of a structurally variable process for cross-linking agglutination between multivalent lectins and glycoclusters using a small-angle forward static light scattering (F-SLS) technique. In this study, a cross-linking agglutination reaction was carried out using a tetravalent Neu5Acα2,6LacNAc-glycocluster and Sambucus sieboldiana agglutinin (SSA). The scattering intensity of time-resolved F-SLS increased with formation of the Neu5Acα2,6LacNAc-glycocluster-SSA cross-linked complex. Using this approach, fine sequential cross-linking agglutination between glycoclusters and lectins was observed in real-time. The rate of increase in the intensity of time-resolved F-SLS increased with the concentration of sialo-glycoclusters and SSA. Structural analysis based on the fractal dimension using time-resolved F-SLS patterns revealed that the density of the aggregates changed with progression of the cross-linking reaction until equilibrium was reached. This is the first report to evaluate the cross-linking agglutination reaction between glycoclusters and lectins and analysis of the subsequent structure of the obtained aggregates using time-resolved measurements of F-SLS.
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Affiliation(s)
- Makoto Ogata
- Faculty of Food and Agricultural Sciences, Fukushima University, 1 Kanayagawa, Fukushima city, Fukushima, Japan
- Department of Applied Chemistry and Biochemistry, National Institute of Technology, Fukushima College, 30 Nagao, Iwaki, Fukushima, Japan
| | - Takashi Onoda
- Department of Applied Chemistry and Biochemistry, National Institute of Technology, Fukushima College, 30 Nagao, Iwaki, Fukushima, Japan
| | - Takashi Wakamatsu
- Department of Electrical and Electronic System Engineering, National Institute of Technology, Fukushima College, 30 Nagao, Iwaki, Fukushima, Japan
- Department of Industrial Engineering, National Institute of Technology, Ibaraki College, 866 Nakane, Hitachinaka, Ibaraki, Japan
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Kurbangalieva A, Zamalieva R, Nasibullin I, Yamada K, Tanaka K. Homo- and Heterogeneous Glycoconjugates on the Basis of N-Glycans and Human Serum Albumin: Synthesis and Biological Evaluation. Molecules 2022; 27:1285. [PMID: 35209074 DOI: 10.3390/molecules27041285] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 11/17/2022]
Abstract
Neoglycoconjugates mimicking natural compounds and possessing a variety of biological functions are very successful tools for researchers to understand the general mechanisms of many biological processes in living organisms. These substances are characterized by high biotolerance and specificity, with low toxicity. Due to the difficult isolation of individual glycoclusters from biological objects, special interest has been directed toward synthetic analogs. This review is mainly focused on the one-pot, double-click methodology (containing alkyne–azide click cycloaddition with the following 6π-azaelectrocyclization reactions) used in the synthesis of N-glycoconjugates. Homogeneous (including one type of biantennary N-glycan fragments) and heterogeneous (containing two to four types of biantennary N-glycan fragments) glycoclusters on albumin were synthesized via this strategy. A series of cell-, tissue- and animal-based experiments proved glycoclusters to be a very promising class of targeted delivery systems. Depending on the oligosaccharide units combined in the cluster, their amount, and arrangement relative to one another, conjugates can recognize various cells, including cancer cells, with high selectivity. These results open new perspectives for affected tissue visualization and treatment.
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Tanaka T, Matsuura A, Aso Y, Ohara H. Aqueous One-pot Synthesis of Glycopolymers by Glycosidase-catalyzed Glycomonomer Synthesis Using 4,6-Dimetoxy Triazinyl Glycoside Followed by Radical Polymerization. J Appl Glycosci (1999) 2020; 67:119-127. [PMID: 34354538 PMCID: PMC8116861 DOI: 10.5458/jag.jag.jag-2020_0010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 10/05/2020] [Indexed: 11/16/2022] Open
Abstract
Glycopolymers have attracted increased attention as functional polymeric materials, and simple methods for synthesizing glycopolymers remain needed. This paper reports the aqueous one-pot and chemoenzymatic synthesis of four types of glycopolymers via two reactions: the β-galactosidase-catalyzed glycomonomer synthesis using 4,6-dimetoxy triazinyl β-D-galactopyranoside and hydroxy group-containing (meth)acrylamide and (meth)acrylate derivatives as the activated glycosyl donor substrate and as the glycomonomer precursors, respectively, followed by radical copolymerization of the resulting glycomonomer and excess glycomonomer precursor without isolating the glycomonomers. The resulting glycopolymers bearing galactose moieties exhibited specific and strong interactions with the lectin peanut agglutinin as glycoclusters.
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Affiliation(s)
- Tomonari Tanaka
- Department of Biobased Materials Science, Graduate School of Science and Technology, Kyoto Institute of Technology
| | - Ayane Matsuura
- Department of Biobased Materials Science, Graduate School of Science and Technology, Kyoto Institute of Technology
| | - Yuji Aso
- Department of Biobased Materials Science, Graduate School of Science and Technology, Kyoto Institute of Technology
| | - Hitomi Ohara
- Department of Biobased Materials Science, Graduate School of Science and Technology, Kyoto Institute of Technology
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Hu XL, Cai Q, Gao J, Field RA, Chen GR, Jia N, Zang Y, Li J, He XP. Self-Assembled 2D Glycoclusters for the Targeted Delivery of Theranostic Agents to Triple-Negative Breast Cancer Cells. ACS Appl Mater Interfaces 2019; 11:22181-22187. [PMID: 31150201 DOI: 10.1021/acsami.9b06016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Triple-negative breast cancer (TNBC) is a devastating disease worldwide, for which targeted imaging and therapeutic agents remain elusive. There has been growing awareness that carbohydrates are valuable as drug candidates and targeting agents for a variety of human diseases, including cancers that overexpress carbohydrate receptors on the cell surface. Here, we develop a two-dimensional (2D) glycocluster by means of simple, stepwise self-assembly for the targeted delivery of theranostic agents to TNBC cells that express mannose receptors (MRs) on the cell surface. Human serum albumin, which contains a variety of hydrophobic pockets capable of accommodating small molecules, was used to simultaneously encapsulate a mannose-based glycoprobe and a commercial photosensitizer (i.e., Ce6). The multicomponent "neoglycoprotein" formed was used to self-assemble with 2D MnO2, producing 2D glycoclusters, which could be selectively internalized by a TNBC cell line (MDA-MB-231) as facilitated by binding to the transmembrane MR. The intracellular degradation of the 2D MnO2 backbone by biothiols then released Ce6 for cell imaging and, subsequently, photodynamic therapy. This study provides insights into the development of carbohydrate-based materials for targeted, stimuli-responsive theranostics of TNBC.
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Affiliation(s)
- Xi-Le Hu
- Key Laboratory for Advanced Materials & Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P. R. China
| | - Quanyu Cai
- Department of Radiology , Eastern Hepatobiliary Surgery Hospital , Shanghai 200438 , P. R. China
| | - Jie Gao
- Key Laboratory for Advanced Materials & Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P. R. China
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica , Chinese Academy of Sciences , 189 Guo Shoujing Road , Shanghai 201203 , P. R. China
| | - Robert A Field
- Department of Biological Chemistry , John Innes Centre, Norwich Research Park , Norwich NR4 7UH , U.K
| | - Guo-Rong Chen
- Key Laboratory for Advanced Materials & Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P. R. China
| | - Ningyang Jia
- Department of Radiology , Eastern Hepatobiliary Surgery Hospital , Shanghai 200438 , P. R. China
| | - Yi Zang
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica , Chinese Academy of Sciences , 189 Guo Shoujing Road , Shanghai 201203 , P. R. China
| | - Jia Li
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica , Chinese Academy of Sciences , 189 Guo Shoujing Road , Shanghai 201203 , P. R. China
| | - Xiao-Peng He
- Key Laboratory for Advanced Materials & Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P. R. China
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Dupin L, Noël M, Bonnet S, Meyer A, Géhin T, Bastide L, Randriantsoa M, Souteyrand E, Cottin C, Vergoten G, Vasseur JJ, Morvan F, Chevolot Y, Darblade B. Screening of a Library of Oligosaccharides Targeting Lectin LecB of Pseudomonas Aeruginosa and Synthesis of High Affinity Oligo glycoclusters. Molecules 2018; 23:E3073. [PMID: 30477231 DOI: 10.3390/molecules23123073] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 11/15/2018] [Accepted: 11/21/2018] [Indexed: 12/04/2022] Open
Abstract
The Gram negative bacterium Pseudomonas aeruginosa (PA) is an opportunistic bacterium that causes severe and chronic infection of immune-depressed patients. It has the ability to form a biofilm that gives a selective advantage to the bacteria with respect to antibiotherapy and host defenses. Herein, we have focused on the tetrameric soluble lectin which is involved in bacterium adherence to host cells, biofilm formation, and cytotoxicity. It binds to l-fucose, d-mannose and glycan exposing terminal fucose or mannose. Using a competitive assay on microarray, 156 oligosaccharides and polysaccharides issued from fermentation or from the biomass were screened toward their affinity to LecB. Next, the five best ligands (Lewisa, Lewisb, Lewisx, siayl-Lewisx and 3-fucosyllactose) were derivatized with a propargyl aglycon allowing the synthesis of 25 trivalent, 25 tetravalent and 5 monovalent constructions thanks to copper catalyzed azide alkyne cycloaddition. The 55 clusters were immobilized by DNA Directed immobilization leading to the fabrication of a glycocluster microarray. Their binding to LecB was studied. Multivalency improved the binding to LecB. The binding structure relationship of the clusters is mainly influenced by the carbohydrate residues. Molecular simulations indicated that the simultaneous contact of both binding sites of monomer A and D seems to be energetically possible.
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Lehto M, Wolff H, Leino R, Alenius H, Savolainen J. A novel glycocluster molecule prevents timothy-induced allergic airway inflammation in mice. Allergy 2018; 73:1700-1706. [PMID: 29377154 DOI: 10.1111/all.13419] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Allergen-specific immunotherapy (SIT) effectively alleviates type I allergic diseases characterized by T helper (Th)2-type immunity. Our recent studies have shown that a synthetic trivalent glycocluster, triacedimannose (TADM), suppresses the Th2-type allergic inflammation. The aim of this study was to compare TADM with two well-known adjuvants, unmethylated cytosine-phosphate-guanine oligodeoxynucleotide (CpG) and monophosphoryl lipid A (MPLA) in a grass allergen-induced chronic allergic inflammation model in mice. METHODS Female BALB/c mice were intranasally sensitized with 50 μL of timothy grass pollen extract (TE) twice a week for a period of 15 weeks. Therapeutic intranasal treatments were then performed once a week after the tenth intranasal TE instillation using TADM (10 or 25 μg/50 μL), CpG-ODN (20 μg/50 μL) or MPLA (2 μg/50 μL). Groups of 9-10 animals per treatment were killed 24 hours after the last timothy dosage. Blood, bronchoalveolar lavage (BAL) fluids and lung biopsies were taken for subsequent analysis. RESULTS When mice were repeatedly exposed to TE for 15 weeks, the number of eosinophils and lymphocytes increased in the BAL fluids. The eosinophil and lymphocyte counts decreased dose-dependently and were practically abolished in the mice treated with TADM. Treatments with MPLA or CpG significantly increased the numbers of neutrophils, while CpG nonsignificantly decreased eosinophilia compared to timothy exposure. CONCLUSIONS A novel synthetic glycocluster molecule inhibited the development of grass-induced eosinophilic pulmonary inflammation in mice when administrated in the airways. This compound could be a candidate to be used either as an adjuvant in SIT or as a topical anti-inflammatory treatment.
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Affiliation(s)
- M. Lehto
- Department of Occupational Medicine; Finnish Institute of Occupational Health; Helsinki Finland
| | - H. Wolff
- Department of Pathology; Finnish Institute of Occupational Health; Helsinki Finland
| | - R. Leino
- Johan Gadolin Process Chemistry Centre; Laboratory of Organic Chemistry; Åbo Akademi University; Turku Finland
| | - H. Alenius
- Karolinska Institutet; Institute of Environmental Medicine; Stockholm Sweden
- Medical Faculty; University of Helsinki; Helsinki Finland
| | - J. Savolainen
- Department of Pulmonary Diseases and Clinical Allergology; University of Turku; Turku University Hospital; Turku Finland
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Roy R, Murphy PV, Gabius HJ. Multivalent Carbohydrate-Lectin Interactions: How Synthetic Chemistry Enables Insights into Nanometric Recognition. Molecules 2016; 21:E629. [PMID: 27187342 DOI: 10.3390/molecules21050629] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 05/02/2016] [Accepted: 05/10/2016] [Indexed: 12/15/2022] Open
Abstract
Glycan recognition by sugar receptors (lectins) is intimately involved in many aspects of cell physiology. However, the factors explaining the exquisite selectivity of their functional pairing are not yet fully understood. Studies toward this aim will also help appraise the potential for lectin-directed drug design. With the network of adhesion/growth-regulatory galectins as therapeutic targets, the strategy to recruit synthetic chemistry to systematically elucidate structure-activity relationships is outlined, from monovalent compounds to glyco-clusters and glycodendrimers to biomimetic surfaces. The versatility of the synthetic procedures enables to take examining structural and spatial parameters, alone and in combination, to its limits, for example with the aim to produce inhibitors for distinct galectin(s) that exhibit minimal reactivity to other members of this group. Shaping spatial architectures similar to glycoconjugate aggregates, microdomains or vesicles provides attractive tools to disclose the often still hidden significance of nanometric aspects of the different modes of lectin design (sequence divergence at the lectin site, differences of spatial type of lectin-site presentation). Of note, testing the effectors alone or in combination simulating (patho)physiological conditions, is sure to bring about new insights into the cooperation between lectins and the regulation of their activity.
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Smadhi M, de Bentzmann S, Imberty A, Gingras M, Abderrahim R, Goekjian PG. Expeditive synthesis of trithiotriazine-cored glycoclusters and inhibition of Pseudomonas aeruginosa biofilm formation. Beilstein J Org Chem 2014; 10:1981-90. [PMID: 25246957 PMCID: PMC4168900 DOI: 10.3762/bjoc.10.206] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 07/30/2014] [Indexed: 12/13/2022] Open
Abstract
Readily accessible, low-valency glycoclusters based on a triazine core bearing D-galactose and L-fucose epitopes are able to inhibit biofilm formation by Pseudomonas aeruginosa. These multivalent ligands are simple to synthesize, are highly soluble, and can be either homofunctional or heterofunctional. The galactose-decorated cluster shows good affinity for Pseudomonas aeruginosa lectin lecA. They are convenient biological probes for investigating the roles of lecA and lecB in biofilm formation.
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Affiliation(s)
- Meriem Smadhi
- Laboratoire Chimie Organique 2 Glycochimie, Université de Lyon, ICBMS, UMR 5246 - CNRS, Université Claude Bernard Lyon 1, Bat. 308 -CPE Lyon, 43 Bd. du 11 Novembre 1918, 69622 Villeurbanne, France. ; Tel: +33-4-72448183 ; Université de Carthage, Faculté des sciences Bizerte, Tunisie
| | - Sophie de Bentzmann
- Laboratoire d'Ingénierie des Systèmes Macromoléculaires, Institut de Biologie Structurale et Microbiologie, CNRS-Aix Marseille University, UMR7255, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Anne Imberty
- Centre de Recherches sur les Macromolécules Végétales (CERMAV), UPR 5301 CNRS et Université Grenoble Alpes, BP53, 38041 Grenoble, France
| | - Marc Gingras
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 163 Avenue de Luminy 13288 Marseille, France
| | | | - Peter G Goekjian
- Laboratoire Chimie Organique 2 Glycochimie, Université de Lyon, ICBMS, UMR 5246 - CNRS, Université Claude Bernard Lyon 1, Bat. 308 -CPE Lyon, 43 Bd. du 11 Novembre 1918, 69622 Villeurbanne, France. ; Tel: +33-4-72448183
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