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Probing the bilayer-monolayer switching of capping agents on Au nanorods and its interaction with guest molecules
$$^{\S }$$
§. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1550-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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53
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Mannoside and 1,2-mannobioside β-cyclodextrin-scaffolded NO-photodonors for targeting antibiotic resistant bacteria. Carbohydr Polym 2018; 199:649-660. [PMID: 30143173 DOI: 10.1016/j.carbpol.2018.07.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/21/2018] [Accepted: 07/06/2018] [Indexed: 12/26/2022]
Abstract
Two β-cyclodextrin derivatives randomly appended on the primary face with both the nitric oxide (NO) photodonor 4-nitro-3-(trifluoromethyl)aniline and a mannose or α(1→2)mannobioside residue are reported to construct targeted NO photoreleasing nanocarriers. 2D ROESY and PGSE NMR suggested supramolecular homodimerization in water by inclusion of the nitroaniline group into the facing macrocycle cavities. Isothermal titration calorimetry on their concanavalin A lectin binding showed an exothermic binding event to the lectin and an endothermic process during the dilution of the conjugates. Both α(1→2)mannobioside and the nitroaniline moieties significantly enhanced the binding to the lectin. These effects might arise from a better fit within the carbohydrate-recognition site in the former case and a multivalent effect caused by homodimerization in the latter. Direct detection of NO by amperometric technique shows that both β-cyclodextrin derivatives release this radical upon excitation with visible light with higher efficiency than the unfunctionalized NO photodonor.
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54
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Lakshminarayanan A, Richard M, Davis BG. Studying glycobiology at the single-molecule level. Nat Rev Chem 2018. [DOI: 10.1038/s41570-018-0019-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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55
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Kwon J, Ahn KS, Jeong D, Choi HN, Lee WY. Highly Sensitive Determination of Concanavalin A Lectin Based on Silver-Enhanced Electrogenerated Chemiluminescence of Luminol. ANAL LETT 2018. [DOI: 10.1080/00032719.2017.1405965] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Jinju Kwon
- Department of Chemistry, Yonsei University, Seoul, Republic of Korea
| | - Kwang-Soo Ahn
- Department of Chemistry, Yonsei University, Seoul, Republic of Korea
| | - Daeho Jeong
- Department of Chemistry, Yonsei University, Seoul, Republic of Korea
| | - Han Nim Choi
- Department of Chemistry, Yonsei University, Seoul, Republic of Korea
| | - Won-Yong Lee
- Department of Chemistry, Yonsei University, Seoul, Republic of Korea
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56
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O'Neil CL, Stine KJ, Demchenko AV. Immobilization of glycans on solid surfaces for application in glycomics. J Carbohydr Chem 2018; 37:225-249. [PMID: 30505067 PMCID: PMC6261488 DOI: 10.1080/07328303.2018.1462372] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Carbohydrates are an important class of biomolecules which are involved in a multitude of cellular functions. In the field of glycomics, the structure and function of various carbohydrates, oligosaccharides, glycans and their conjugates are constantly under investigation. In the continuing quest to understand the roles of carbohydrates in their interactions with proteins, immunogens, and other cell-surface carbohydrates, scientists have developed methods for observing the effects of specific saccharide sequences on various cellular components. Carbohydrate immobilization has allowed researchers to study the impact of specific sequences, leading to a deeper understanding of many cellular processes. The goal of this review is to highlight the chemical reactions and interactions that have been used for glycan immobilization.
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Affiliation(s)
- Crystal L O'Neil
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Boulevard, St. Louis, Missouri, USA
| | - Keith J Stine
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Boulevard, St. Louis, Missouri, USA
| | - Alexei V Demchenko
- Department of Chemistry and Biochemistry, University of Missouri - St. Louis, One University Boulevard, St. Louis, Missouri, USA
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57
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Goda S, Koga T, Yamashita K, Kuriura R, Ueda T. A novel carbohydrate-binding surface layer protein from the hyperthermophilic archaeon Pyrococcus horikoshii. Biosci Biotechnol Biochem 2018; 82:1327-1334. [PMID: 29629656 DOI: 10.1080/09168451.2018.1460571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In Archaea and Bacteria, surface layer (S-layer) proteins form the cell envelope and are involved in cell protection. In the present study, a putative S-layer protein was purified from the crude extract of Pyrococcus horikoshii using affinity chromatography. The S-layer gene was cloned and expressed in Escherichia coli. Isothermal titration calorimetry analyses showed that the S-layer protein bound N-acetylglucosamine and induced agglutination of the gram-positive bacterium Micrococcus lysodeikticus. The protein comprised a 21-mer structure, with a molecular mass of 1,340 kDa, as determined using small-angle X-ray scattering. This protein showed high thermal stability, with a midpoint of thermal denaturation of 79 °C in dynamic light scattering experiments. This is the first description of the carbohydrate-binding archaeal S-layer protein and its characteristics.
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Affiliation(s)
- Shuichiro Goda
- a Biomolecular Chemistry Laboratory, Graduate School of Engineering , Nagasaki University , Nagasaki , Japan
| | - Tomoyuki Koga
- a Biomolecular Chemistry Laboratory, Graduate School of Engineering , Nagasaki University , Nagasaki , Japan
| | - Kenichiro Yamashita
- a Biomolecular Chemistry Laboratory, Graduate School of Engineering , Nagasaki University , Nagasaki , Japan
| | - Ryo Kuriura
- a Biomolecular Chemistry Laboratory, Graduate School of Engineering , Nagasaki University , Nagasaki , Japan
| | - Toshifumi Ueda
- a Biomolecular Chemistry Laboratory, Graduate School of Engineering , Nagasaki University , Nagasaki , Japan
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58
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Bobbili KB, Datta D, Mondal S, Polepalli S, Pohlentz G, Mormann M, Swamy MJ. Purification, chitooligosaccharide binding properties and thermal stability of CIA24, a new PP2-like phloem exudate lectin from ivy gourd (Coccinia indica). Int J Biol Macromol 2018; 110:588-597. [DOI: 10.1016/j.ijbiomac.2018.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 12/12/2017] [Accepted: 01/01/2018] [Indexed: 10/18/2022]
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59
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Zhai W, Male L, Fossey JS. Glucose selective bis-boronic acid click-fluor. Chem Commun (Camb) 2018; 53:2218-2221. [PMID: 27904892 DOI: 10.1039/c6cc08534b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Four novel bis-boronic acid compounds were synthesised via copper catalysed azide-alkyne cycloaddition (CuAAC) reactions. Glucose selectivity was observed for a particular structural motif. Moreover, a new glucose selective fluorescent sensor was designed and synthesised as a result.
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Affiliation(s)
- Wenlei Zhai
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands, B15 2TT, UK.
| | - Louise Male
- X-Ray Crystallography Facility, School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands, UK
| | - John S Fossey
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, West Midlands, B15 2TT, UK.
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60
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Cheng Z, Chen X, Zhai D, Gao F, Guo T, Li W, Hao S, Ji J, Wang B. Development of keratin nanoparticles for controlled gastric mucoadhesion and drug release. J Nanobiotechnology 2018; 16:24. [PMID: 29554910 PMCID: PMC5858146 DOI: 10.1186/s12951-018-0353-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 03/13/2018] [Indexed: 12/02/2022] Open
Abstract
Background Nanotechnology-based drug delivery systems have been widely used for oral and systemic dosage forms delivery depending on the mucoadhesive interaction, and keratin has been applied for biomedical applications and drug delivery. However, few reports have focused on the keratin-based mucoadhesive drug delivery system and their mechanisms of mucoadhesion. Thus, the mucoadhesion controlled kerateine (reduced keratin, KTN)/keratose (oxidized keratin, KOS) composite nanoparticles were prepared via adjusting the proportion of KTN and KOS to achieve controlled gastric mucoadhesion and drug release based on their different mucoadhesive abilities and pH-sensitive properties. Furthermore, the mechanisms of mucoadhesion for KTN and KOS were also investigated in the present study. Results The composite keratin nanoparticles (KNPs) with different mass ratio of KTN to KOS, including 100/0 (KNP-1), 75/25 (KNP-2), 50/50 (KNP-3), and 25/75 (KNP-4), displayed different drug release rates and gastric mucoadhesion capacities, and then altered the drug pharmacokinetic performances. The stronger mucoadhesive ability of nanoparticle could supply longer gastric retention time, indicating that KTN displayed a stronger mucoadhesion than that of KOS. Furthermore, the mechanisms of mucoadhesion for KTN and KOS at different pH conditions were also investigated. The binding between KTN and porcine gastric mucin (PGM) is dominated by electrostatic attractions and hydrogen bondings at pH 4.5, and disulfide bonds also plays a key role in the interaction at pH 7.4. While, the main mechanisms of KOS and PGM interactions are hydrogen bondings and hydrophobic interactions in pH 7.4 condition and were hydrogen bondings at pH 4.5. Conclusions The resulting knowledge offer an efficient strategy to control the gastric mucoadhesion and drug release of nano drug delivery systems, and the elaboration of mucoadhesive mechanism of keratins will enable the rational design of nanocarriers for specific mucoadhesive drug delivery. Electronic supplementary material The online version of this article (10.1186/s12951-018-0353-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Zhongjun Cheng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400030, China.,College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, China.,Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing, 400030, China
| | - Xiaoliang Chen
- Department of Nuclear Medicine, Chongqing Cancer Institution, Chongqing, 400030, China
| | - Dongliang Zhai
- Department of Nuclear Medicine, Chongqing Cancer Institution, Chongqing, 400030, China
| | - Feiyan Gao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400030, China.,Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing, 400030, China
| | - Tingwang Guo
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400030, China.,Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing, 400030, China
| | - Wenfeng Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400030, China.,Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing, 400030, China
| | - Shilei Hao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400030, China. .,Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing, 400030, China.
| | - Jingou Ji
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, China. .,Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing, 400030, China.
| | - Bochu Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400030, China. .,Collaborative Innovation Center for Brain Science, Chongqing University, Chongqing, 400030, China.
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61
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Yang G, Wu L, Chen G, Jiang M. Precise protein assembly of array structures. Chem Commun (Camb) 2018; 52:10595-605. [PMID: 27384233 DOI: 10.1039/c6cc04190f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The assembly of proteins into various nano-objects with regular and periodic microstructures, i.e. protein arrays, is a fast-growing field in materials science. Due to the structural complexity of proteins, reports in this field are still quite limited. In this review, we summarize the recent developments in protein array construction by different driving forces, including electrostatic interactions, metal-ligand interactions, molecular recognition and protein-protein interactions. In line with our particular interest, assemblies driven by molecular recognition are particularly explored. Finally, functionalities of the obtained protein arrays are briefly discussed.
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Affiliation(s)
- Guang Yang
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China.
| | - Libin Wu
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China.
| | - Guosong Chen
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China.
| | - Ming Jiang
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China.
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62
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Baier M, Giesler M, Hartmann L. Split-and-Combine Approach Towards Branched Precision Glycomacromolecules and Their Lectin Binding Behavior. Chemistry 2018; 24:1619-1630. [DOI: 10.1002/chem.201704179] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Mischa Baier
- Institute of Organic and Macromolecular Chemistry; Heinrich-Heine-University Duesseldorf; Universitaetsstraße 1 40225 Duesseldorf Germany
| | - Markus Giesler
- Institute of Organic and Macromolecular Chemistry; Heinrich-Heine-University Duesseldorf; Universitaetsstraße 1 40225 Duesseldorf Germany
| | - Laura Hartmann
- Institute of Organic and Macromolecular Chemistry; Heinrich-Heine-University Duesseldorf; Universitaetsstraße 1 40225 Duesseldorf Germany
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63
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Boden S, Wagner KG, Karg M, Hartmann L. Presenting Precision Glycomacromolecules on Gold Nanoparticles for Increased Lectin Binding. Polymers (Basel) 2017; 9:E716. [PMID: 30966014 PMCID: PMC6418785 DOI: 10.3390/polym9120716] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 11/30/2017] [Accepted: 12/11/2017] [Indexed: 02/08/2023] Open
Abstract
Glyco-functionalized gold nanoparticles have great potential as biosensors and as inhibitors due to their increased binding to carbohydrate-recognizing receptors such as the lectins. Here we apply previously developed solid phase polymer synthesis to obtain a series of precision glycomacromolecules that allows for straightforward variation of their chemical structure as well as functionalization of gold nanoparticles by ligand exchange. A novel building block is introduced allowing for the change of spacer building blocks within the macromolecular scaffold going from an ethylene glycol unit to an aliphatic spacer. Furthermore, the valency and overall length of the glycomacromolecule is varied. All glyco-functionalized gold nanoparticles show high degree of functionalization along with high stability in buffer solution. Therefore, a series of measurements applying UV-Vis spectroscopy, dynamic light scattering (DLS) and surface plasmon resonance (SPR) were performed studying the aggregation behavior of the glyco-functionalized gold nanoparticles in presence of model lectin Concanavalin A. While the multivalent presentation of glycomacromolecules on gold nanoparticles (AuNPs) showed a strong increase in binding compared to the free ligands, we also observed an influence of the chemical structure of the ligand such as its valency or hydrophobicity on the resulting lectin interactions. The straightforward variation of the chemical structure of the precision glycomacromolecule thus gives access to tailor-made glyco-gold nanoparticles (glyco-AuNPs) and fine-tuning of their lectin binding properties.
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Affiliation(s)
- Sophia Boden
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.
| | - Kristina G Wagner
- Institute of Physical Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.
| | - Matthias Karg
- Institute of Physical Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.
| | - Laura Hartmann
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.
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64
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Igde S, Röblitz S, Müller A, Kolbe K, Boden S, Fessele C, Lindhorst TK, Weber M, Hartmann L. Linear Precision Glycomacromolecules with Varying Interligand Spacing and Linker Functionalities Binding to Concanavalin A and the Bacterial Lectin FimH. Macromol Biosci 2017; 17. [DOI: 10.1002/mabi.201700198] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/18/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Sinaida Igde
- Department for Organic Chemistry and Macromolecular Chemistry; Heinrich-Heine-Universität; Universitätsstraße 1 40225 Düsseldorf Germany
| | - Susanna Röblitz
- Department of Numerical Mathematics; Zuse Institute Berlin (ZIB); Takustr. 7 14195 Berlin Germany
- Department of Mathematics and Computer Science; Freie Universität Berlin; Arnimallee 6 14195 Berlin Germany
| | - Anne Müller
- Otto Diels Institute of Organic Chemistry; Christiana Albertina University of Kiel; Otto-Hahn-Platz 3-4 24118 Kiel Germany
| | - Katharina Kolbe
- Otto Diels Institute of Organic Chemistry; Christiana Albertina University of Kiel; Otto-Hahn-Platz 3-4 24118 Kiel Germany
| | - Sophia Boden
- Department for Organic Chemistry and Macromolecular Chemistry; Heinrich-Heine-Universität; Universitätsstraße 1 40225 Düsseldorf Germany
| | - Claudia Fessele
- Otto Diels Institute of Organic Chemistry; Christiana Albertina University of Kiel; Otto-Hahn-Platz 3-4 24118 Kiel Germany
| | - Thisbe K. Lindhorst
- Otto Diels Institute of Organic Chemistry; Christiana Albertina University of Kiel; Otto-Hahn-Platz 3-4 24118 Kiel Germany
| | - Marcus Weber
- Department of Numerical Mathematics; Zuse Institute Berlin (ZIB); Takustr. 7 14195 Berlin Germany
- Department of Mathematics and Computer Science; Freie Universität Berlin; Arnimallee 6 14195 Berlin Germany
| | - Laura Hartmann
- Department for Organic Chemistry and Macromolecular Chemistry; Heinrich-Heine-Universität; Universitätsstraße 1 40225 Düsseldorf Germany
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65
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Collins BC, Gunn RJ, McKitrick TR, Cummings RD, Cooper MD, Herrin BR, Wilson IA. Structural Insights into VLR Fine Specificity for Blood Group Carbohydrates. Structure 2017; 25:1667-1678.e4. [PMID: 28988747 PMCID: PMC5677568 DOI: 10.1016/j.str.2017.09.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 08/16/2017] [Accepted: 09/01/2017] [Indexed: 12/28/2022]
Abstract
High-quality reagents to study and detect glycans with high specificity for research and clinical applications are severely lacking. Here, we structurally and functionally characterize several variable lymphocyte receptor (VLR)-based antibodies from lampreys immunized with O erythrocytes that specifically recognize the blood group H-trisaccharide type II antigen. Glycan microarray analysis and biophysical data reveal that these VLRs exhibit greater specificity for H-trisaccharide compared with the plant lectin UEA-1, which is widely used in blood typing. Among these antibodies, O13 exhibits superior specificity for H-trisaccharide, the basis for which is revealed by comparative analysis of high-resolution VLR:glycan crystal structures. Using a structure-guided approach, we designed an O13 mutant with further enhanced specificity for H-trisaccharide. These insights into glycan recognition by VLRs suggest that lampreys can produce highly specific glycan antibodies, and are a valuable resource for the production of next-generation glycan reagents for biological and biomedical research and as diagnostics and therapeutics.
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MESH Headings
- Amino Acid Sequence
- Animals
- Antibodies, Monoclonal/biosynthesis
- Antibodies, Monoclonal/chemistry
- Antibodies, Monoclonal/isolation & purification
- Antibody Specificity
- Binding Sites
- Blood Group Antigens/analysis
- Blood Group Antigens/immunology
- Blood Grouping and Crossmatching/methods
- Crystallography, X-Ray
- Erythrocytes/chemistry
- Erythrocytes/immunology
- Humans
- Immunization
- Lampreys/immunology
- Models, Molecular
- Plant Lectins/chemistry
- Plant Lectins/immunology
- Polysaccharides/chemistry
- Polysaccharides/immunology
- Polysaccharides/metabolism
- Protein Binding
- Protein Conformation
- Protein Conformation, alpha-Helical
- Protein Conformation, beta-Strand
- Protein Interaction Domains and Motifs
- Receptors, Antigen, T-Cell/chemistry
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/immunology
- Recombinant Proteins/chemistry
- Recombinant Proteins/genetics
- Recombinant Proteins/metabolism
- Sequence Alignment
- Sequence Homology, Amino Acid
- Trisaccharides/chemistry
- Trisaccharides/immunology
- Trisaccharides/metabolism
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Affiliation(s)
- Bernard C Collins
- Department of Integrative Structural and Computational Biology and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Robin J Gunn
- Department of Integrative Structural and Computational Biology and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Tanya R McKitrick
- National Center for Functional Glycomics, Beth Israel Deaconess Medical Center Department of Surgery, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA
| | - Richard D Cummings
- National Center for Functional Glycomics, Beth Israel Deaconess Medical Center Department of Surgery, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA
| | - Max D Cooper
- Emory Vaccine Center and Department of Pathology and Laboratory Medicine, Emory University, 1462 Clifton Road North-East, Atlanta, GA 30322, USA
| | - Brantley R Herrin
- Emory Vaccine Center and Department of Pathology and Laboratory Medicine, Emory University, 1462 Clifton Road North-East, Atlanta, GA 30322, USA
| | - Ian A Wilson
- Department of Integrative Structural and Computational Biology and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
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66
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Salvadó M, Reina JJ, Rojo J, Castillón S, Boutureira O. Topological Defects in Hyperbranched Glycopolymers Enhance Binding to Lectins. Chemistry 2017; 23:15790-15794. [PMID: 28851127 DOI: 10.1002/chem.201703432] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Indexed: 11/10/2022]
Abstract
Central scaffold topology and carbohydrate density are important features in determining the binding mechanism and potency of synthetic multivalent of poly- versus monodisperse carbohydrate systems against a model plant toxin (Ricinus communis agglutinin (RCA120 )). Lower densities of protein receptors favour the use of heterogeneous, polydisperse glycoconjugate presentations, as determined by surface plasmon resonance and dynamic light scattering.
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Affiliation(s)
- Míriam Salvadó
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/ Marcel lí Domingo 1, 43007, Tarragona, Spain
| | - José J Reina
- Glycosystems Laboratory, Instituto de Investigaciones Químicas, IIQ, CSIC -, Universidad de Sevilla, Av. Américo Vespucio 49, 41092, Sevilla, Spain
| | - Javier Rojo
- Glycosystems Laboratory, Instituto de Investigaciones Químicas, IIQ, CSIC -, Universidad de Sevilla, Av. Américo Vespucio 49, 41092, Sevilla, Spain
| | - Sergio Castillón
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/ Marcel lí Domingo 1, 43007, Tarragona, Spain
| | - Omar Boutureira
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/ Marcel lí Domingo 1, 43007, Tarragona, Spain
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67
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Sletten ET, Loka RS, Yu F, Nguyen HM. Glycosidase Inhibition by Multivalent Presentation of Heparan Sulfate Saccharides on Bottlebrush Polymers. Biomacromolecules 2017; 18:3387-3399. [PMID: 28846389 PMCID: PMC6044434 DOI: 10.1021/acs.biomac.7b01049] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We report herein the first-time exploration of the attachment of well-defined saccharide units onto a synthetic polymer backbone for the inhibition of a glycosidase. More specifically, glycopolymers endowed with heparan sulfate (HS) disaccharides were established to inhibit the glycosidase, heparanase, with an IC50 value in the low nanomolar range (1.05 ± 0.02 nm), a thousand-fold amplification over its monovalent counterpart. The monomeric moieties of these glycopolymers were designed in silico to manipulate the well-established glycotope of heparanase into an inhitope. Studies concluded that (1) the glycopolymers are hydrolytic stable toward heparanase, (2) longer polymer length provides greater inhibition, and (3) increased local saccharide density (monoantennary vs diantennary) is negligible due to hindered active site of heparanase. Furthermore, HS oligosaccharide and polysaccharide controls illustrate the enhanced potency of a multivalent scaffold. Overall, the results on these studies of the multivalent presentation of saccharides on bottlebrush polymers serve as the platform for the design of potent glycosidase inhibitors and have potential to be applied to other HS-degrading proteins.
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Affiliation(s)
| | | | - Fei Yu
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Hien M. Nguyen
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
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68
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Chen J, Travelet C, Borsali R, Halila S. Hemicellulosic Polysaccharides Mimics: Synthesis of Tailored Bottlebrush-Like Xyloglucan Oligosaccharide Glycopolymers as Binders of Nanocrystalline Cellulose. Biomacromolecules 2017; 18:3410-3417. [DOI: 10.1021/acs.biomac.7b01056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jing Chen
- Univ. Grenoble Alpes, CERMAV, F-38000 Grenoble, France
- CNRS, CERMAV, F-38000 Grenoble, France
| | - Christophe Travelet
- Univ. Grenoble Alpes, CERMAV, F-38000 Grenoble, France
- CNRS, CERMAV, F-38000 Grenoble, France
| | - Redouane Borsali
- Univ. Grenoble Alpes, CERMAV, F-38000 Grenoble, France
- CNRS, CERMAV, F-38000 Grenoble, France
| | - Sami Halila
- Univ. Grenoble Alpes, CERMAV, F-38000 Grenoble, France
- CNRS, CERMAV, F-38000 Grenoble, France
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69
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Cima F, Peronato A, Ballarin L. The haemocytes of the colonial aplousobranch ascidian Diplosoma listerianum: Structural, cytochemical and functional analyses. Micron 2017; 102:51-64. [PMID: 28889072 DOI: 10.1016/j.micron.2017.08.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 08/22/2017] [Accepted: 08/23/2017] [Indexed: 12/17/2022]
Abstract
Diplosoma listerianum is a colonial aplousobranch ascidian of the family Didemnidae that is native to the northeast Atlantic and exhibits a cosmopolitan distribution in temperate waters. It lacks a shared colonial circulation crossing the tunic, and the zooids are connected only by the common tunic. In the present study, the haemocytes of this ascidian were analysed via light and electron microscopy. Their phagocytic and enzymatic activities, staining and immunostaining properties, and lectin affinity were examined with various classical methods reconsidered and modified for small marine invertebrates. Eight morphotypes were identified in reference to corresponding cell types described in other ascidians: undifferentiated cells (haemoblasts), storage cells for nitrogenous catabolites (nephrocytes) and immunocytes. The immunocytes are involved in immune responses, acting as (1) phagocytes, rich in hydrolases and involved in the clearance of both foreign particles and effete cells (hyaline amoebocytes and macrophage-like cells); (2) cytotoxic cells, able to degranulate and induce cytotoxicity through the release of the enzyme phenoloxidase after an immune stimulus (granular amoebocytes and morula cells); and (3) basophilic cells with an affinity for ConA and NPA that contain heparin and histamine and that show sensitivity to the compound 48/80, promoting their degranulation (mast cell-like granulocytes). In addition, a particular cell type showing exceptional development of the Golgi apparatus and large vacuoles containing a filamentous material has been recognised (spherule cell), for which a role in tunic repair and fibrogenesis has been hypothesised.
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70
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Gaspar DP, Gaspar MM, Eleutério CV, Grenha A, Blanco M, Gonçalves LMD, Taboada P, Almeida AJ, Remuñán-López C. Microencapsulated Solid Lipid Nanoparticles as a Hybrid Platform for Pulmonary Antibiotic Delivery. Mol Pharm 2017; 14:2977-2990. [PMID: 28809501 DOI: 10.1021/acs.molpharmaceut.7b00169] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Solid lipid nanoparticles (SLN) containing rifabutin (RFB), with pulmonary administration purposes, were developed through a technique that avoids the use of organic solvents or sonication. To facilitate their pulmonary delivery, the RFB-loaded SLN were included in microspheres of appropriate size using suitable excipients (mannitol and trehalose) through a spray-drying technique. Confocal analysis microscopy showed that microspheres are spherical and that SLN are efficiently microencapsulated and homogeneously distributed throughout the microsphere matrices. The aerodynamic diameters observed an optimal distribution for reaching the alveolar region. The dry powder's performance during aerosolization and the in vitro drug deposition were tested using a twin-impinger approach, which confirmed that the microspheres can reach the deep lung. Isothermal titration calorimetry revealed that SLN have higher affinity for mannitol than for trehalose. Upon microsphere dissolution in aqueous media, SLN were readily recovered, maintaining their physicochemical properties. When these dry powders reach the deep lung, microspheres are expected to readily dissolve, delivering the SLN which, in turn, will release RFB. The in vivo biodistribution of microencapsulated RFB-SLN demonstrated that the antibiotic achieved the tested organs 15 and 30 min post pulmonary administration. Their antimycobacterial activity was also evaluated in a murine model of infection with a Mycobacterium tuberculosis strain H37Rv resulting in an enhancement of activity against M. tuberculosis infection compared to nontreated animals. These results suggest that RFB-SLN microencapsulation is a promising approach for the treatment of tuberculosis.
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Affiliation(s)
- Diana P Gaspar
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa , Av. Professor Gama Pinto, 1649-003 Lisbon, Portugal
| | - Maria Manuela Gaspar
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa , Av. Professor Gama Pinto, 1649-003 Lisbon, Portugal
| | - Carla V Eleutério
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa , Av. Professor Gama Pinto, 1649-003 Lisbon, Portugal
| | | | | | - Lídia M D Gonçalves
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa , Av. Professor Gama Pinto, 1649-003 Lisbon, Portugal
| | | | - António J Almeida
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa , Av. Professor Gama Pinto, 1649-003 Lisbon, Portugal
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71
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Innovative Solutions to Sticky Situations: Antiadhesive Strategies for Treating Bacterial Infections. Microbiol Spectr 2017; 4. [PMID: 27227305 DOI: 10.1128/microbiolspec.vmbf-0023-2015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Bacterial adherence to host tissue is an essential process in pathogenesis, necessary for invasion and colonization and often required for the efficient delivery of toxins and other bacterial effectors. As existing treatment options for common bacterial infections dwindle, we find ourselves rapidly approaching a tipping point in our confrontation with antibiotic-resistant strains and in desperate need of new treatment options. Bacterial strains defective in adherence are typically avirulent and unable to cause infection in animal models. The importance of this initial binding event in the pathogenic cascade highlights its potential as a novel therapeutic target. This article seeks to highlight a variety of strategies being employed to treat and prevent infection by targeting the mechanisms of bacterial adhesion. Advancements in this area include the development of novel antivirulence therapies using small molecules, vaccines, and peptides to target a variety of bacterial infections. These therapies target bacterial adhesion through a number of mechanisms, including inhibition of pathogen receptor biogenesis, competition-based strategies with receptor and adhesin analogs, and the inhibition of binding through neutralizing antibodies. While this article is not an exhaustive description of every advancement in the field, we hope it will highlight several promising examples of the therapeutic potential of antiadhesive strategies.
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72
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Lavilla C, Yilmaz G, Uzunova V, Napier R, Becer CR, Heise A. Block-Sequence-Specific Glycopolypeptides with Selective Lectin Binding Properties. Biomacromolecules 2017; 18:1928-1936. [DOI: 10.1021/acs.biomac.7b00356] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Cristina Lavilla
- Department
of Chemical Engineering and Chemistry, Eindhoven University of Technology, Den Dolech 2, 5612AZ Eindhoven, The Netherlands
| | - Gokhan Yilmaz
- Polymer
Chemistry Laboratory, School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, United Kingdom
| | - Veselina Uzunova
- Life
Sciences, University of Warwick, CV4 7AL Coventry, United Kingdom
| | - Richard Napier
- Life
Sciences, University of Warwick, CV4 7AL Coventry, United Kingdom
| | - C. Remzi Becer
- Polymer
Chemistry Laboratory, School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, United Kingdom
| | - Andreas Heise
- Department
of Chemical Engineering and Chemistry, Eindhoven University of Technology, Den Dolech 2, 5612AZ Eindhoven, The Netherlands
- Department
of Pharmaceutical and Medicinal Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephens Green, Dublin 2, Ireland
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73
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Chen H, Li M, Liu Z, Hu R, Li S, Guo Y, Lv F, Liu L, Wang Y, Yi Y, Wang S. Design of antibacterial peptide-like conjugated molecule with broad spectrum antimicrobial ability. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9034-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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74
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Samoilova NA, Krayukhina MA, Babushkina TA, Yamskov IA, Likhosherstov LM, Piskarev VE. Silver- and gold-labeled colloidal and crosslinked glycopolymers based on glycyl glycosynthons and maleic anhydride copolymers for lectin binding. J Appl Polym Sci 2017. [DOI: 10.1002/app.44718] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Nadezhda A. Samoilova
- A.N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow 119991 Russian Federation
| | - Maria A. Krayukhina
- A.N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow 119991 Russian Federation
| | - Tatyana A. Babushkina
- A.N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow 119991 Russian Federation
| | - Igor A. Yamskov
- A.N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow 119991 Russian Federation
| | - Leonid M. Likhosherstov
- N.D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Moscow 119991 Russian Federation
| | - Vladimir E. Piskarev
- A.N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow 119991 Russian Federation
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75
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Han G, Wang JT, Ji X, Liu L, Zhao H. Nanoscale Proteinosomes Fabricated by Self-Assembly of a Supramolecular Protein–Polymer Conjugate. Bioconjug Chem 2017; 28:636-641. [DOI: 10.1021/acs.bioconjchem.6b00704] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guangda Han
- Key Laboratory of Functional
Polymer Materials, Ministry of Education, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Jin-Tao Wang
- Key Laboratory of Functional
Polymer Materials, Ministry of Education, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Xiaotian Ji
- Key Laboratory of Functional
Polymer Materials, Ministry of Education, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Li Liu
- Key Laboratory of Functional
Polymer Materials, Ministry of Education, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Hanying Zhao
- Key Laboratory of Functional
Polymer Materials, Ministry of Education, College of Chemistry, Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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76
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Yamanaka M. Synthesis and Gelation Ability of <i>C</i><sub>3</sub>-Symmetric Tris-Ureas. J SYN ORG CHEM JPN 2017. [DOI: 10.5059/yukigoseikyokaishi.75.650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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77
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Complex carbohydrate recognition by proteins: Fundamental insights from bacteriophage cell adhesion systems. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.pisc.2016.10.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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78
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Zhu F, Clemmer DE, Trinidad JC. Characterization of lectin binding affinities via direct LC-MS profiling: implications for glycopeptide enrichment and separation strategies. Analyst 2017; 142:65-74. [DOI: 10.1039/c6an02043g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Determining the affinity between a lectin and its target glycans is an important goal, both for understanding the biological functions of a given lectin as well as enabling the use of that lectin for targeted enrichment of glycosylated species from complex samples.
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Affiliation(s)
- Feifei Zhu
- Department of Chemistry
- Indiana University
- Bloomington
- USA
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79
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Damborský P, Zámorová M, Katrlík J. Determining the binding affinities of prostate-specific antigen to lectins: SPR and microarray approaches. Proteomics 2016; 16:3096-3104. [DOI: 10.1002/pmic.201500466] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 10/26/2016] [Accepted: 11/23/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Pavel Damborský
- Department of Glycobiotechnology; Center for Glycomics; Institute of Chemistry; Slovak Academy of Sciences; Bratislava Slovakia
| | - Martina Zámorová
- Department of Glycobiotechnology; Center for Glycomics; Institute of Chemistry; Slovak Academy of Sciences; Bratislava Slovakia
| | - Jaroslav Katrlík
- Department of Glycobiotechnology; Center for Glycomics; Institute of Chemistry; Slovak Academy of Sciences; Bratislava Slovakia
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80
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Peng L, Li Z, Li X, Xue H, Zhang W, Chen G. Integrating Sugar and Dopamine into One Polymer: Controlled Synthesis and Robust Surface Modification. Macromol Rapid Commun 2016; 38. [DOI: 10.1002/marc.201600548] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Revised: 10/25/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Lun Peng
- Center for Soft Condensed Matter Physics and Interdisciplinary Research; Soochow University; Suzhou 215006 P. R. China
| | - Zhiyun Li
- Center for Soft Condensed Matter Physics and Interdisciplinary Research; Soochow University; Suzhou 215006 P. R. China
| | - Xiaohui Li
- Center for Soft Condensed Matter Physics and Interdisciplinary Research; Soochow University; Suzhou 215006 P. R. China
| | - Hui Xue
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; College of Chemistry; Chemical Engineering and Materials Science of Soochow University; Soochow University; Suzhou 215123 P. R. China
| | - Weidong Zhang
- Center for Soft Condensed Matter Physics and Interdisciplinary Research; Soochow University; Suzhou 215006 P. R. China
| | - Gaojian Chen
- Center for Soft Condensed Matter Physics and Interdisciplinary Research; Soochow University; Suzhou 215006 P. R. China
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; College of Chemistry; Chemical Engineering and Materials Science of Soochow University; Soochow University; Suzhou 215123 P. R. China
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81
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Fabrication of Carbohydrate Microarrays by Boronate Formation. Methods Mol Biol 2016. [PMID: 27873199 DOI: 10.1007/978-1-4939-6584-7_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
The interactions between soluble carbohydrates and/or surface displayed glycans and protein receptors are essential to many biological processes and cellular recognition events. Carbohydrate microarrays provide opportunities for high-throughput quantitative analysis of carbohydrate-protein interactions. Over the past decade, various techniques have been implemented for immobilizing glycans on solid surfaces in a microarray format. Herein, we describe a detailed protocol for fabricating carbohydrate microarrays that capitalizes on the intrinsic reactivity of boronic acid toward carbohydrates to form stable boronate diesters. A large variety of unprotected carbohydrates ranging in structure from simple disaccharides and trisaccharides to considerably more complex human milk and blood group (oligo)saccharides have been covalently immobilized in a single step on glass slides, which were derivatized with high-affinity boronic acid ligands. The immobilized ligands in these microarrays maintain the receptor-binding activities including those of lectins and antibodies according to the structures of their pendant carbohydrates for rapid analysis of a number of carbohydrate-recognition events within 30 h. This method facilitates the direct construction of otherwise difficult to obtain carbohydrate microarrays from underivatized glycans.
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82
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Terada Y, Seto H, Hoshino Y, Murakami T, Shinohara S, Tamada K, Miura Y. SPR study for analysis of a water-soluble glycopolymer interface and molecular recognition properties. Polym J 2016. [DOI: 10.1038/pj.2016.99] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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83
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Bhattarai JK, Tan YH, Pandey B, Fujikawa K, Demchenko AV, Stine KJ. Electrochemical Impedance Spectroscopy Study of Concanavalin A Binding to Self-Assembled Monolayers of Mannosides on Gold Wire Electrodes. J Electroanal Chem (Lausanne) 2016; 780:311-320. [PMID: 28413372 DOI: 10.1016/j.jelechem.2016.09.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The interactions of the lectin Concanavalin A (Con A) with self-assembled monolayers (SAMs) of thiolated mono-, di-, and tri-mannosides were studied on the surface of gold wires using electrochemical impedance spectroscopy (EIS). The SAMs of mannosides were prepared either pure or along with thiolated triethylene glycol (TEG) at different molar ratios (1:1, 1:2, 1:4, 1:9, and 1:19) to better understand and optimize the interaction conditions. The charge-transfer resistance of the [Fe(CN)6]3-/4- redox probe was compared before and after the interaction at different concentrations of Con A to determine the equilibrium dissociation constant (Kd) and limit of detection (LOD). Values of Kd were found in the nanomolar range showing multivalent interactions between mannosides and Con A, and LOD was found ranging from 4-13 nM depending on the type of mannoside SAM used. Analysis using the Hill equation suggests negative cooperativity in the binding behavior. Peanut agglutinin was used as a negative control, and cyclic voltammetry was used to further support the experiments. We have found that neither the pure nor the widely dispersed monolayers of mannosides provide the conditions for optimal binding of Con A. The binding of Con A to these SAMs is sensitive to the molar ratio of the mannoside used to prepare the SAM and to the structure of the mannoside. A simple cleaning method has also been shown to regenerate the used gold wire electrodes. The results from these experiments contribute to the development of simple, cheap, selective, and sensitive EIS-based bioassays, especially for lectin-carbohydrate interactions.
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Affiliation(s)
- Jay K Bhattarai
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, Saint Louis, MO 63121, USA
| | - Yih Horng Tan
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, Saint Louis, MO 63121, USA
| | - Binod Pandey
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, Saint Louis, MO 63121, USA
| | - Kohki Fujikawa
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, Saint Louis, MO 63121, USA
| | - Alexei V Demchenko
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, Saint Louis, MO 63121, USA
| | - Keith J Stine
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, Saint Louis, MO 63121, USA
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84
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Santos A, Bueno PR. Glycoprotein assay based on the optimized immittance signal of a redox tagged and lectin-based receptive interface. Biosens Bioelectron 2016; 83:368-78. [DOI: 10.1016/j.bios.2016.04.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 04/08/2016] [Accepted: 04/14/2016] [Indexed: 12/29/2022]
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85
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Topin J, Lelimousin M, Arnaud J, Audfray A, Pérez S, Varrot A, Imberty A. The Hidden Conformation of Lewis x, a Human Histo-Blood Group Antigen, Is a Determinant for Recognition by Pathogen Lectins. ACS Chem Biol 2016; 11:2011-20. [PMID: 27198630 DOI: 10.1021/acschembio.6b00333] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Histo-blood group epitopes are fucosylated branched oligosaccharides with well-defined conformations in solution that are recognized by receptors, such as lectins from pathogens. We report here the results of a series of experimental and computational endeavors revealing the unusual distortion of histo-blood group antigens by bacterial and fungal lectins. The Lewis x trisaccharide adopts a rigid closed conformation in solution, while crystallography and molecular dynamics reveal several higher energy open conformations when bound to the Ralstonia solanacearum lectin, which is in agreement with thermodynamic and kinetic measurements. Extensive molecular dynamics simulations confirm rare transient Le(x) openings in solution, frequently assisted by distortion of the central N-acetyl-glucosamine ring. Additional directed molecular dynamic trajectories revealed the role of a conserved tryptophan residue in guiding the fucose into the binding site. Our findings show that conformational adaptation of oligosaccharides is of paramount importance in cell recognition and should be considered when designing anti-infective glyco-compounds.
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Affiliation(s)
- Jérémie Topin
- CERMAV UPR5301,
CNRS, and Université Grenoble Alpes, BP 53, 38041 Grenoble cedex 9, France
| | - Mickaël Lelimousin
- CERMAV UPR5301,
CNRS, and Université Grenoble Alpes, BP 53, 38041 Grenoble cedex 9, France
| | - Julie Arnaud
- CERMAV UPR5301,
CNRS, and Université Grenoble Alpes, BP 53, 38041 Grenoble cedex 9, France
| | - Aymeric Audfray
- CERMAV UPR5301,
CNRS, and Université Grenoble Alpes, BP 53, 38041 Grenoble cedex 9, France
| | - Serge Pérez
- DPM UMR5063, Université Grenoble Alpes, and CNRS, BP 53, 38041 Grenoble cedex 9, France
| | - Annabelle Varrot
- CERMAV UPR5301,
CNRS, and Université Grenoble Alpes, BP 53, 38041 Grenoble cedex 9, France
| | - Anne Imberty
- CERMAV UPR5301,
CNRS, and Université Grenoble Alpes, BP 53, 38041 Grenoble cedex 9, France
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86
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Multivalent display of minimal Clostridium difficile glycan epitopes mimics antigenic properties of larger glycans. Nat Commun 2016; 7:11224. [PMID: 27091615 PMCID: PMC4838876 DOI: 10.1038/ncomms11224] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 02/26/2016] [Indexed: 12/31/2022] Open
Abstract
Synthetic cell-surface glycans are promising vaccine candidates against Clostridium difficile. The complexity of large, highly antigenic and immunogenic glycans is a synthetic challenge. Less complex antigens providing similar immune responses are desirable for vaccine development. Based on molecular-level glycan–antibody interaction analyses, we here demonstrate that the C. difficile surface polysaccharide-I (PS-I) can be resembled by multivalent display of minimal disaccharide epitopes on a synthetic scaffold that does not participate in binding. We show that antibody avidity as a measure of antigenicity increases by about five orders of magnitude when disaccharides are compared with constructs containing five disaccharides. The synthetic, pentavalent vaccine candidate containing a peptide T-cell epitope elicits weak but highly specific antibody responses to larger PS-I glycans in mice. This study highlights the potential of multivalently displaying small oligosaccharides to achieve antigenicity characteristic of larger glycans. The approach may result in more cost-efficient carbohydrate vaccines with reduced synthetic effort. Immunologically-active glycans are promising vaccine candidates but can be difficult to synthesize. Here, the authors show that pentavalent display of a minimal disaccharde epitope on a chemical scaffold can mimic a native C. difficile glycan antigen, representing a simple approach to synthetic vaccine production.
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87
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Yamanaka M. Development ofC3-Symmetric Tris-Urea Low-Molecular-Weight Gelators. CHEM REC 2016; 16:768-82. [DOI: 10.1002/tcr.201500282] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Indexed: 01/12/2023]
Affiliation(s)
- Masamichi Yamanaka
- Department of Chemistry, Faculty of Science; Shizuoka University; 836 Ohya, Suruga-ku Shizuoka 422-8529 Japan
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88
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Biophysical characterization of laforin–carbohydrate interaction. Biochem J 2016; 473:335-45. [DOI: 10.1042/bj20141555] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 11/17/2015] [Indexed: 11/17/2022]
Abstract
Laforin, a key regulator of glycogen metabolism, is a low-affinity glycan binder. In the present work, we thoroughly biophysically characterized its glycan interaction.
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89
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Zhai W, Chapin BM, Yoshizawa A, Wang HC, Hodge SA, James TD, Anslyn EV, Fossey JS. “Click-fluors”: triazole-linked saccharide sensors. Org Chem Front 2016. [DOI: 10.1039/c6qo00171h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of boronic acid-containing saccharide receptors was synthesised via copper catalysed azide–alkyne cycloaddition (CuAAC) reactions.
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Affiliation(s)
- Wenlei Zhai
- School of Chemistry
- University of Birmingham
- Birmingham
- UK
| | - Brette M. Chapin
- School of Chemistry
- University of Birmingham
- Birmingham
- UK
- Department of Chemistry and Biochemistry
| | | | - Hui-Chen Wang
- School of Chemistry
- University of Birmingham
- Birmingham
- UK
| | | | | | - Eric V. Anslyn
- Department of Chemistry and Biochemistry
- The University of Texas at Austin
- Austin
- USA
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90
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Kameta N, Masuda M, Shimizu T. Two-step naked-eye detection of lectin by hierarchical organization of soft nanotubes into liquid crystal and gel phases. Chem Commun (Camb) 2015; 51:6816-9. [PMID: 25787759 DOI: 10.1039/c5cc01464f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Depending on the concentration of a lectin analyte, supramolecular soft nanotubes, bearing recognition sites immobilized on the outer surface through ethylene glycol chains, hierarchically organized into naked-eye-detectable liquid crystals and hydrogels.
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Affiliation(s)
- Naohiro Kameta
- Nanosystem Research Institute (NRI), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
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91
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Chen G, Qiu J, Xu J, Fang X, Liu Y, Liu S, Wei S, Jiang R, Luan T, Zeng F, Zhu F, Ouyang G. A novel probe based on phenylboronic acid functionalized carbon nanotubes for ultrasensitive carbohydrate determination in biofluids and semi-solid biotissues. Chem Sci 2015; 7:1487-1495. [PMID: 29910906 PMCID: PMC5975936 DOI: 10.1039/c5sc03992d] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 11/19/2015] [Indexed: 12/26/2022] Open
Abstract
An ultrasensitive SPME probe based on phenylboronic acid functionalized CNTs is applied for direct in vitro or in vivo recognition of carbohydrates in biofluids as well as semi-solid biotissues.
Carbohydrates are known to be involved in a wide range of biological and pathological processes. However, due to the presence of multiple hydroxyl groups, carbohydrate recognition is a particular challenge. Herein, we reported an ultrasensitive solid-phase microextraction (SPME) probe based on phenylboronic acid (PBA) functionalized carbon nanotubes (CNTs) for direct in vitro or in vivo recognition of carbohydrates in biofluids as well as semi-solid biotissues. The coating of the proposed probe possessed a 3D interconnected porous architecture formed by the stacking of CNTs. As a result, the binding capacity toward carbohydrates was excellent. The proposed approach was demonstrated to be much superior to most carbohydrate sensors, including higher sensitivity, wider linear range, and excellent qualitative ability in multi-carbohydrate systems. Thus, this approach opens up new avenues for the facile and efficient recognition of carbohydrates for important applications such as glycomics.
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Affiliation(s)
- Guosheng Chen
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry , School of Chemistry and Chemical Engineering , Sun Yat-sen University , Guangzhou 510275 , P. R. China . ; ; ; Tel: +86-020-84110845
| | - Junlang Qiu
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry , School of Chemistry and Chemical Engineering , Sun Yat-sen University , Guangzhou 510275 , P. R. China . ; ; ; Tel: +86-020-84110845
| | - Jianqiao Xu
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry , School of Chemistry and Chemical Engineering , Sun Yat-sen University , Guangzhou 510275 , P. R. China . ; ; ; Tel: +86-020-84110845
| | - Xu'an Fang
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry , School of Chemistry and Chemical Engineering , Sun Yat-sen University , Guangzhou 510275 , P. R. China . ; ; ; Tel: +86-020-84110845
| | - Yan Liu
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry , School of Chemistry and Chemical Engineering , Sun Yat-sen University , Guangzhou 510275 , P. R. China . ; ; ; Tel: +86-020-84110845
| | - Shuqin Liu
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry , School of Chemistry and Chemical Engineering , Sun Yat-sen University , Guangzhou 510275 , P. R. China . ; ; ; Tel: +86-020-84110845
| | - Songbo Wei
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry , School of Chemistry and Chemical Engineering , Sun Yat-sen University , Guangzhou 510275 , P. R. China . ; ; ; Tel: +86-020-84110845
| | - Ruifen Jiang
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry , School of Chemistry and Chemical Engineering , Sun Yat-sen University , Guangzhou 510275 , P. R. China . ; ; ; Tel: +86-020-84110845
| | - Tiangang Luan
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry , School of Chemistry and Chemical Engineering , Sun Yat-sen University , Guangzhou 510275 , P. R. China . ; ; ; Tel: +86-020-84110845
| | - Feng Zeng
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry , School of Chemistry and Chemical Engineering , Sun Yat-sen University , Guangzhou 510275 , P. R. China . ; ; ; Tel: +86-020-84110845
| | - Fang Zhu
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry , School of Chemistry and Chemical Engineering , Sun Yat-sen University , Guangzhou 510275 , P. R. China . ; ; ; Tel: +86-020-84110845
| | - Gangfeng Ouyang
- MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry , School of Chemistry and Chemical Engineering , Sun Yat-sen University , Guangzhou 510275 , P. R. China . ; ; ; Tel: +86-020-84110845
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92
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Affiliation(s)
- Yoshiko Miura
- Department of Chemical Engineering, Graduate
School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yu Hoshino
- Department of Chemical Engineering, Graduate
School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hirokazu Seto
- Department of Chemical Engineering, Graduate
School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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93
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Ergometric studies of proteins: New insights into protein functionality in food systems. Trends Food Sci Technol 2015. [DOI: 10.1016/j.tifs.2015.06.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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94
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Melicher MS, Walker AS, Shen J, Miller SJ, Schepartz A. Improved Carbohydrate Recognition in Water with an Electrostatically Enhanced β-Peptide Bundle. Org Lett 2015; 17:4718-21. [DOI: 10.1021/acs.orglett.5b02187] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael S. Melicher
- Department of Chemistry and ‡Department of Molecular, Cellular, and Developmental
Biology, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Allison S. Walker
- Department of Chemistry and ‡Department of Molecular, Cellular, and Developmental
Biology, Yale University, New Haven, Connecticut 06520-8107, United States
| | - John Shen
- Department of Chemistry and ‡Department of Molecular, Cellular, and Developmental
Biology, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Scott J. Miller
- Department of Chemistry and ‡Department of Molecular, Cellular, and Developmental
Biology, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Alanna Schepartz
- Department of Chemistry and ‡Department of Molecular, Cellular, and Developmental
Biology, Yale University, New Haven, Connecticut 06520-8107, United States
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95
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Ahn KS, Kim BK, Lee WY. Cyclic voltammetric studies of carbohydrate – protein interactions on gold surface. Electrochem commun 2015. [DOI: 10.1016/j.elecom.2015.06.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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96
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Sun P, Lin M, Zhao Y, Chen G, Jiang M. Stereoisomerism effect on sugar–lectin binding of self-assembled glyco-nanoparticles of linear and brush copolymers. Colloids Surf B Biointerfaces 2015; 133:12-8. [DOI: 10.1016/j.colsurfb.2015.05.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 04/10/2015] [Accepted: 05/19/2015] [Indexed: 01/12/2023]
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97
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Rodriguez MC, Yegorova S, Pitteloud JP, Chavaroche AE, André S, Ardá A, Minond D, Jiménez-Barbero J, Gabius HJ, Cudic M. Thermodynamic Switch in Binding of Adhesion/Growth Regulatory Human Galectin-3 to Tumor-Associated TF Antigen (CD176) and MUC1 Glycopeptides. Biochemistry 2015; 54:4462-74. [PMID: 26129647 PMCID: PMC4520625 DOI: 10.1021/acs.biochem.5b00555] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
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A shift
to short-chain glycans is an observed change in mucin-type
O-glycosylation in premalignant and malignant epithelia. Given the
evidence that human galectin-3 can interact with mucins and also weakly
with free tumor-associated Thomsen-Friedenreich (TF) antigen (CD176),
the study of its interaction with MUC1 (glyco)peptides is of biomedical
relevance. Glycosylated MUC1 fragments that carry the TF antigen attached
through either Thr or Ser side chains were synthesized using standard
Fmoc-based automated solid-phase peptide chemistry. The dissociation
constants (Kd) for interaction of galectin-3
and the glycosylated MUC1 fragments measured by isothermal titration
calorimetry decreased up to 10 times in comparison to that of the
free TF disaccharide. No binding was observed for the nonglycosylated
control version of the MUC1 peptide. The most notable feature of the
binding of MUC1 glycopeptides to galectin-3 was a shift from a favorable
enthalpy to an entropy-driven binding process. The comparatively diminished
enthalpy contribution to the free energy (ΔG) was compensated by a considerable gain in the entropic term. 1H–15N heteronuclear single-quantum coherence
spectroscopy nuclear magnetic resonance data reveal contact at the
canonical site mainly by the glycan moiety of the MUC1 glycopeptide.
Ligand-dependent differences in binding affinities were also confirmed
by a novel assay for screening of low-affinity glycan–lectin
interactions based on AlphaScreen technology. Another key finding
is that the glycosylated MUC1 peptides exhibited activity in a concentration-dependent
manner in cell-based assays revealing selectivity among human galectins.
Thus, the presentation of this tumor-associated carbohydrate ligand
by the natural peptide scaffold enhances its affinity, highlighting
the significance of model studies of human lectins with synthetic
glycopeptides.
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Affiliation(s)
- Maria C Rodriguez
- †Department of Chemistry and Biochemistry, Charles E. Schmidt College of Science, Florida Atlantic University, 777 Glades Road, Boca Raton, Florida 33431, United States.,‡Torrey Pines Institute for Molecular Studies, 11350 Southwest Village Parkway, Port St. Lucie, Florida 34987, United States
| | - Svetlana Yegorova
- ‡Torrey Pines Institute for Molecular Studies, 11350 Southwest Village Parkway, Port St. Lucie, Florida 34987, United States
| | - Jean-Philippe Pitteloud
- ‡Torrey Pines Institute for Molecular Studies, 11350 Southwest Village Parkway, Port St. Lucie, Florida 34987, United States
| | - Anais E Chavaroche
- ‡Torrey Pines Institute for Molecular Studies, 11350 Southwest Village Parkway, Port St. Lucie, Florida 34987, United States
| | - Sabine André
- §Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University, Veterinärstrasse 13, 80539 Munich, Germany
| | - Ana Ardá
- ∥CIC bioGUNE, Bizkaia Technological Park, Building 801 A, 48160 Derio, Spain
| | - Dimitriy Minond
- ‡Torrey Pines Institute for Molecular Studies, 11350 Southwest Village Parkway, Port St. Lucie, Florida 34987, United States
| | - Jesús Jiménez-Barbero
- ∥CIC bioGUNE, Bizkaia Technological Park, Building 801 A, 48160 Derio, Spain.,⊥Ikerbasque, Basque Foundation for Science, Maria Lopez de Haro 3, 48013 Bilbao, Spain
| | - Hans-Joachim Gabius
- §Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University, Veterinärstrasse 13, 80539 Munich, Germany
| | - Mare Cudic
- †Department of Chemistry and Biochemistry, Charles E. Schmidt College of Science, Florida Atlantic University, 777 Glades Road, Boca Raton, Florida 33431, United States
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98
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Fei Y, Sun YS, Li Y, Yu H, Lau K, Landry JP, Luo Z, Baumgarth N, Chen X, Zhu X. Characterization of Receptor Binding Profiles of Influenza A Viruses Using An Ellipsometry-Based Label-Free Glycan Microarray Assay Platform. Biomolecules 2015; 5:1480-98. [PMID: 26193329 PMCID: PMC4598760 DOI: 10.3390/biom5031480] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 06/09/2015] [Accepted: 07/06/2015] [Indexed: 12/11/2022] Open
Abstract
A key step leading to influenza viral infection is the highly specific binding of a viral spike protein, hemagglutinin (HA), with an extracellular glycan receptor of a host cell. Detailed and timely characterization of virus-receptor binding profiles may be used to evaluate and track the pandemic potential of an influenza virus strain. We demonstrate a label-free glycan microarray assay platform for acquiring influenza virus binding profiles against a wide variety of glycan receptors. By immobilizing biotinylated receptors on a streptavidin-functionalized solid surface, we measured binding curves of five influenza A virus strains with 24 glycans of diverse structures and used the apparent equilibrium dissociation constants (avidity constants, 10–100 pM) as characterizing parameters of viral receptor profiles. Furthermore by measuring binding kinetic constants of solution-phase glycans to immobilized viruses, we confirmed that the glycan-HA affinity constant is in the range of 10 mM and the reaction is enthalpy-driven.
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Affiliation(s)
- Yiyan Fei
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Department of Optical Science and Engineering, Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Fudan University, 220 Handan Road, Shanghai 200433, China.
- Department of Physics, University of California, Davis, CA 95616, USA.
| | - Yung-Shin Sun
- Department of Physics, University of California, Davis, CA 95616, USA.
- Department of Physics, Fu-Jen Catholic University, New Taipei City 24205, Taiwan.
| | - Yanhong Li
- Department of Chemistry, University of California, Davis, CA 95616, USA.
| | - Hai Yu
- Department of Chemistry, University of California, Davis, CA 95616, USA.
| | - Kam Lau
- Department of Chemistry, University of California, Davis, CA 95616, USA.
| | - James P Landry
- Department of Physics, University of California, Davis, CA 95616, USA.
| | - Zeng Luo
- Center for Comparative Medicine, University of California, Davis, CA 95616, USA.
| | - Nicole Baumgarth
- Center for Comparative Medicine, University of California, Davis, CA 95616, USA.
| | - Xi Chen
- Department of Chemistry, University of California, Davis, CA 95616, USA.
| | - Xiangdong Zhu
- Department of Physics, University of California, Davis, CA 95616, USA.
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99
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Ye C, Zhong X, Chai Y, Yuan R. Sensing glucose based on its affinity for concanavalin A on a glassy carbon electrode modified with a C60 fullerene nanocomposite. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1559-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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100
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Agniel R, Vendrely C, Poulouin L, Bascetin R, Benachour H, Gallet O, Leroy-Dudal J. Lectins as probes for assessing the accessibility ofN-linked glycans in relation to the conformational changes of fibronectin. J Mol Recognit 2015; 28:731-41. [DOI: 10.1002/jmr.2487] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 05/28/2015] [Accepted: 05/29/2015] [Indexed: 12/22/2022]
Affiliation(s)
- Rémy Agniel
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellules, ERRMECe (EA1391), Institut des matériaux, I-MAT (FD4122); Université de Cergy-Pontoise, F-95000 Cergy-Pontoise; 2 Avenue Adolphe Chauvin Cergy-Pontoise Cedex 95302 France
| | - Charlotte Vendrely
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellules, ERRMECe (EA1391), Institut des matériaux, I-MAT (FD4122); Université de Cergy-Pontoise, F-95000 Cergy-Pontoise; 2 Avenue Adolphe Chauvin Cergy-Pontoise Cedex 95302 France
| | - Laurent Poulouin
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellules, ERRMECe (EA1391), Institut des matériaux, I-MAT (FD4122); Université de Cergy-Pontoise, F-95000 Cergy-Pontoise; 2 Avenue Adolphe Chauvin Cergy-Pontoise Cedex 95302 France
- Orange; Direction Nord de France; 2 rue Trémière Villeneuve d'Ascq F-59650 France
| | - Rümeyza Bascetin
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellules, ERRMECe (EA1391), Institut des matériaux, I-MAT (FD4122); Université de Cergy-Pontoise, F-95000 Cergy-Pontoise; 2 Avenue Adolphe Chauvin Cergy-Pontoise Cedex 95302 France
| | - Hamanou Benachour
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellules, ERRMECe (EA1391), Institut des matériaux, I-MAT (FD4122); Université de Cergy-Pontoise, F-95000 Cergy-Pontoise; 2 Avenue Adolphe Chauvin Cergy-Pontoise Cedex 95302 France
| | - Olivier Gallet
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellules, ERRMECe (EA1391), Institut des matériaux, I-MAT (FD4122); Université de Cergy-Pontoise, F-95000 Cergy-Pontoise; 2 Avenue Adolphe Chauvin Cergy-Pontoise Cedex 95302 France
| | - Johanne Leroy-Dudal
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellules, ERRMECe (EA1391), Institut des matériaux, I-MAT (FD4122); Université de Cergy-Pontoise, F-95000 Cergy-Pontoise; 2 Avenue Adolphe Chauvin Cergy-Pontoise Cedex 95302 France
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