1
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Prasch H, Wolfsgruber A, Thonhofer M, Culum A, Mandl C, Weber P, Zündel M, Nasseri SA, Gonzalez Santana A, Tegl G, Nidetzky B, Gruber K, Stütz AE, Withers SG, Wrodnigg TM. Ligand-Directed Chemistry on Glycoside Hydrolases - A Proof of Concept Study. Chembiochem 2023; 24:e202300480. [PMID: 37715738 DOI: 10.1002/cbic.202300480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/11/2023] [Accepted: 09/14/2023] [Indexed: 09/18/2023]
Abstract
Selective covalent labelling of enzymes using small molecule probes has advanced the scopes of protein profiling. The covalent bond formation to a specific target is the key step of activity-based protein profiling (ABPP), a method which has become an indispensable tool for measuring enzyme activity in complex matrices. With respect to carbohydrate processing enzymes, strategies for ABPP so far involve labelling the active site of the enzyme, which results in permanent loss of activity. Here, we report in a proof of concept study the use of ligand-directed chemistry (LDC) for labelling glycoside hydrolases near - but not in - the active site. During the labelling process, the competitive inhibitor is cleaved from the probe, departs the active site and the enzyme maintains its catalytic activity. To this end, we designed a building block synthetic concept for small molecule probes containing iminosugar-based reversible inhibitors for labelling of two model β-glucosidases. The results indicate that the LDC approach can be adaptable for covalent proximity labelling of glycoside hydrolases.
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Affiliation(s)
- Herwig Prasch
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Andreas Wolfsgruber
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Martin Thonhofer
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - André Culum
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Christoph Mandl
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Patrick Weber
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Melanie Zündel
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Seyed A Nasseri
- University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada
| | - Andres Gonzalez Santana
- University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada
| | - Gregor Tegl
- Graz University of Technology, Institute of Biotechnology and Biochemical Engineering, Petersgasse 10-12/I, 8010, Graz, Austria
| | - Bernd Nidetzky
- Graz University of Technology, Institute of Biotechnology and Biochemical Engineering, Petersgasse 10-12/I, 8010, Graz, Austria
| | - Karl Gruber
- University of Graz, Institute of Molecular Bioscience, Humboldtstraße 50/III, 8010, Graz, Austria
| | - Arnold E Stütz
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Stephen G Withers
- University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada
| | - Tanja M Wrodnigg
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
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2
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Adak AK, Huang KT, Liao CY, Lee YJ, Kuo WH, Huo YR, Li PJ, Chen YJ, Chen BS, Chen YJ, Chu Hwang K, Wayne Chang WS, Lin CC. Investigating a Boronate-Affinity-Guided Acylation Reaction for Labelling Native Antibodies. Chemistry 2022; 28:e202104178. [PMID: 35143090 DOI: 10.1002/chem.202104178] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Indexed: 12/12/2022]
Abstract
The excellent molecular recognition capabilities of monoclonal antibodies (mAbs) have opened up exciting opportunities for biotherapeutic discovery. Taking advantage of the full potential of this tool necessitates affinity ligands capable of conjugating directly with small molecules to a defined degree of biorthogonality, especially when modifying natural Abs. Herein, a bioorthogonal boronate-affinity-based Ab ligand featuring a 4-(dimethylamino)pyridine and an S-aryl thioester to label full-length Abs is reported. The photoactivatable linker in the acyl donor facilitated purification of azide-labelled Ab (N3 -Ab) was quantitatively cleaved upon brief exposure to UV light while retaining the original Ab activity. Click reactions enabled the precise addition of biotin, a fluorophore, and a pharmacological agent to the purified N3 -Abs. The resulting immunoconjugate showed selectivity against targeted cells. Bioorthogonal traceless design and reagentless purification allow this strategy to be a powerful tool to engineer native antibodies amenable to therapeutic intervention.
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Affiliation(s)
- Avijit K Adak
- Department of Chemistry, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Kuan-Ting Huang
- Department of Chemistry, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Chien-Yu Liao
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, 350, Taiwan
| | - Yuan-Jung Lee
- Department of Chemistry, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Wen-Hua Kuo
- Department of Chemistry, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Yi-Ren Huo
- Department of Chemistry, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Pei-Jhen Li
- Department of Chemistry, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Yi-Ju Chen
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
| | - Bo-Shiun Chen
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
| | - Yu-Ju Chen
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
| | - Kuo Chu Hwang
- Department of Chemistry, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Wun-Shang Wayne Chang
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, 350, Taiwan
| | - Chun-Cheng Lin
- Department of Chemistry, National Tsing Hua University, Hsinchu, 300, Taiwan.,Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
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3
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Adak AK, Huang KT, Li PJ, Fan CY, Lin PC, Hwang KC, Lin CC. Regioselective S N2-Type Reaction for the Oriented and Irreversible Immobilization of Antibodies to a Glass Surface Assisted by Boronate Formation. ACS APPLIED BIO MATERIALS 2020; 3:6756-6767. [PMID: 35019340 DOI: 10.1021/acsabm.0c00700] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Antibodies have exquisite specificities for molecular recognition, which have led to their incorporation into array sensors that are crucial for research, diagnostic, and therapeutic applications. Many of these platforms rely heavily on surface-bound reactive groups to covalently tether antibodies to solid substrates; however, this strategy is hindered by a lack of orientation control over antibody immobilization. Here, we report a mild electrophilic phenylsulfonate (tosylate) ester-containing boronic acid affinity ligand for attaching antibodies to glass slides. A high level of antibody coupling located near the Fc region of the boronated antibody complex could be achieved by the proximal nucleophilic amino acid driven substitution reaction at the phenylsulfonate center. This enabled the full-length antibodies to be permanently tethered onto surfaces in an oriented manner. The advantages of this strategy were demonstrated through the individual and multiplex detection of protein and serum biomarkers. This strategy not only confers stability to the immobilized antibodies but also presents a different direction for the irreversible attachment of antibodies to solid supports in an orientation-controlled way.
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Affiliation(s)
- Avijit K Adak
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Kuan-Ting Huang
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Pei-Jhen Li
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chen-Yo Fan
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Po-Chiao Lin
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Kuo-Chu Hwang
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chun-Cheng Lin
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan.,Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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4
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Mortensen MR, Skovsgaard MB, Gothelf KV. Considerations on Probe Design for Affinity‐Guided Protein Conjugation. Chembiochem 2019; 20:2711-2728. [DOI: 10.1002/cbic.201900157] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Indexed: 01/08/2023]
Affiliation(s)
- Michael R. Mortensen
- Center for Multifunctional Biomolecular Drug DesignInterdisciplinary Nanoscience CenterAarhus University Gustav Wieds Vej 14 8000 Aarhus C Denmark
- Department of ChemistryAarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Mikkel B. Skovsgaard
- Center for Multifunctional Biomolecular Drug DesignInterdisciplinary Nanoscience CenterAarhus University Gustav Wieds Vej 14 8000 Aarhus C Denmark
- Department of ChemistryAarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Kurt V. Gothelf
- Center for Multifunctional Biomolecular Drug DesignInterdisciplinary Nanoscience CenterAarhus University Gustav Wieds Vej 14 8000 Aarhus C Denmark
- Department of ChemistryAarhus University Langelandsgade 140 8000 Aarhus C Denmark
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5
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Tu HC, Lee YP, Liu XY, Chang CF, Lin PC. Direct Screening of Glycan Patterns from Human Sera: A Selective Glycoprotein Microarray Strategy. ACS APPLIED BIO MATERIALS 2019; 2:1286-1297. [DOI: 10.1021/acsabm.9b00001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hsiu-Chung Tu
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Yen-Pin Lee
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Xuan-Yu Liu
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Chuan-Fa Chang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Po-Chiao Lin
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan
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6
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Mortensen MR, Nielsen NL, Palmfeldt J, Gothelf KV. Imidazole carbamate probes for affinity guided azide-transfer to metal-binding proteins. Org Biomol Chem 2019; 17:1379-1383. [DOI: 10.1039/c8ob03017k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Probes for affinity guided conjugation have shown great promise for the preparation of high-quality protein conjugates.
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Affiliation(s)
- Michael Rosholm Mortensen
- Center for Multifunctional Biomolecular Drug Design at the Interdisciplinary Nanoscience Center
- Aarhus University
- Aarhus C
- Denmark
- Department of Chemistry
| | - Nanna Louise Nielsen
- Center for Multifunctional Biomolecular Drug Design at the Interdisciplinary Nanoscience Center
- Aarhus University
- Aarhus C
- Denmark
- Department of Chemistry
| | - Johan Palmfeldt
- Research Unit for Molecular Medicine
- Aarhus University
- 8200 Aarhus N
- Denmark
| | - Kurt Vesterager Gothelf
- Center for Multifunctional Biomolecular Drug Design at the Interdisciplinary Nanoscience Center
- Aarhus University
- Aarhus C
- Denmark
- Department of Chemistry
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7
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António JPM, Russo R, Carvalho CP, Cal PMSD, Gois PMP. Boronic acids as building blocks for the construction of therapeutically useful bioconjugates. Chem Soc Rev 2019; 48:3513-3536. [DOI: 10.1039/c9cs00184k] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review summarizes boronic acid's contribution to the development of bioconjugates with a particular focus on the molecular mechanisms underlying its role in the construction and function of the bioconjugate, namely as a bioconjugation warhead, as a payload and as part of a bioconjugate linker.
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Affiliation(s)
- João P. M. António
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Roberto Russo
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Cátia Parente Carvalho
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Pedro M. S. D. Cal
- Instituto de Medicina Molecular
- Faculty of Medicine
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Pedro M. P. Gois
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- Lisbon
- Portugal
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8
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Tang S, Ma H, Tu H, Wang H, Lin P, Anseth KS. Adaptable Fast Relaxing Boronate-Based Hydrogels for Probing Cell-Matrix Interactions. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800638. [PMID: 30250802 PMCID: PMC6145256 DOI: 10.1002/advs.201800638] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Indexed: 05/19/2023]
Abstract
Hydrogels with tunable viscoelasticity hold promise as materials that can recapitulate many dynamic mechanical properties found in native tissues. Here, covalent adaptable boronate bonds are exploited to prepare hydrogels that exhibit fast relaxation, with relaxation time constants on the order of seconds or less, but are stable for long-term cell culture and are cytocompatible for 3D cell encapsulation. Using human mesenchymal stem cells (hMSC) as a model, the fast relaxation matrix mechanics are found to promote cell-matrix interactions, leading to spreading and an increase in nuclear volume, and induce yes-associated protein/PDZ binding domain nuclear localization at longer times. All of these effects are exclusively based on the hMSCs' ability to physically remodel their surrounding microenvironment. Given the increasingly recognized importance of viscoelasticity in controlling cell function and fate, it is expected that the synthetic strategies and material platform presented should provide a useful system to study mechanotransduction on and within viscoelastic environments and explore many questions related to matrix biology.
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Affiliation(s)
- Shengchang Tang
- Department of Chemical and Biological Engineering and the BioFrontiers InstituteUniversity of Colorado BoulderJennie Smoly Caruthers Biotechnology Building3415 Colorado AveBoulderCO80303USA
| | - Hao Ma
- Department of Chemical and Biological Engineering and the BioFrontiers InstituteUniversity of Colorado BoulderJennie Smoly Caruthers Biotechnology Building3415 Colorado AveBoulderCO80303USA
| | - Hsiu‐Chung Tu
- Department of ChemistryNational Sun Yat‐sen UniversityNo. 70, Lienhai RdKaohsiung80424Taiwan
| | - Huei‐Ren Wang
- Department of ChemistryNational Sun Yat‐sen UniversityNo. 70, Lienhai RdKaohsiung80424Taiwan
| | - Po‐Chiao Lin
- Department of ChemistryNational Sun Yat‐sen UniversityNo. 70, Lienhai RdKaohsiung80424Taiwan
| | - Kristi S. Anseth
- Department of Chemical and Biological Engineering and the BioFrontiers InstituteUniversity of Colorado BoulderJennie Smoly Caruthers Biotechnology Building3415 Colorado AveBoulderCO80303USA
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9
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Mortensen MR, Skovsgaard MB, Okholm AH, Scavenius C, Dupont DM, Rosen CB, Enghild JJ, Kjems J, Gothelf KV. Small-Molecule Probes for Affinity-Guided Introduction of Biocompatible Handles on Metal-Binding Proteins. Bioconjug Chem 2018; 29:3016-3025. [DOI: 10.1021/acs.bioconjchem.8b00424] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Michael R. Mortensen
- Center for Multifunctional Biomolecular Drug Design at the Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000 C, Aarhus, Denmark
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 C Aarhus, Denmark
| | - Mikkel B. Skovsgaard
- Center for Multifunctional Biomolecular Drug Design at the Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000 C, Aarhus, Denmark
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 C Aarhus, Denmark
| | - Anders H. Okholm
- Center for Multifunctional Biomolecular Drug Design at the Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000 C, Aarhus, Denmark
| | - Carsten Scavenius
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, 8000 C Aarhus, Denmark
| | - Daniel M. Dupont
- Center for Multifunctional Biomolecular Drug Design at the Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000 C, Aarhus, Denmark
| | - Christian B. Rosen
- Center for Multifunctional Biomolecular Drug Design at the Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000 C, Aarhus, Denmark
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 C Aarhus, Denmark
| | - Jan J. Enghild
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, 8000 C Aarhus, Denmark
| | - Jørgen Kjems
- Center for Multifunctional Biomolecular Drug Design at the Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000 C, Aarhus, Denmark
| | - Kurt V. Gothelf
- Center for Multifunctional Biomolecular Drug Design at the Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000 C, Aarhus, Denmark
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 C Aarhus, Denmark
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10
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Chou CH, Lin PC. Glycan-Directed Grafting-from Polymerization of Immunoglobulin G: Site-Selectively Modified IgG-Polymer Conjugates with Preserved Biological Activity. Biomacromolecules 2018; 19:3086-3095. [PMID: 29890078 DOI: 10.1021/acs.biomac.8b00669] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Antibody and related antibody drugs for the treatment of malignancies have led to progress in targeted cancer therapy. Preparation of diverse antibody conjugates is critical for preclinical and clinical applications. However, precise control in tagging molecules at specific locations on antibodies is essential to preserve their native function. In this study, a synthetic boronic acid (BA)-tosyl initiator was used to trigger a glycan-directed modification of IgGs, and the obtained IgG macroinitiators allowed a growth of the poly N-isopropylacrylamide (PNIPAAm) chains specifically at Fc-domains. Therefore, the PNIPAAm chains are located away from the critical antigen-binding domains (Fab), which could reasonably prevent the loss of biological activity after the attachment of polymer chains. According to the proposed strategy, a site-selectively modified anticoncanavalin A (Con A) antibody-PNIPAAm conjugate showed 6-times higher efficiency in the binding of targeted Con A antigen to a randomly conjugated anti-Con A antibody-PNIPAAm conjugate. In this study, we developed the first chemical strategy for the site-specific preparation of IgG-polymer conjugates with conserved biological activity as well as intact glycan structures.
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Affiliation(s)
- Chih-Hung Chou
- Department of Chemistry , National Sun Yat-sen University 70, Lienhai Road , Kaohsiung 80424 , Taiwan
| | - Po-Chiao Lin
- Department of Chemistry , National Sun Yat-sen University 70, Lienhai Road , Kaohsiung 80424 , Taiwan
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11
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Li XG, Zhang F, Gao Y, Zhou QM, Zhao Y, Li Y, Huo JZ, Zhao XJ. Facile synthesis of red emitting 3-aminophenylboronic acid functionalized copper nanoclusters for rapid, selective and highly sensitive detection of glycoproteins. Biosens Bioelectron 2016; 86:270-276. [DOI: 10.1016/j.bios.2016.06.054] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/14/2016] [Accepted: 06/18/2016] [Indexed: 10/21/2022]
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12
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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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13
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Behnam MAM, Sundermann TR, Klein CD. Solid Phase Synthesis of C-Terminal Boronic Acid Peptides. Org Lett 2016; 18:2016-9. [DOI: 10.1021/acs.orglett.6b00625] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mira A. M. Behnam
- Medicinal Chemistry, Institute
of Pharmacy and Molecular Biotechnology IPMB, Heidelberg University, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany
| | - Tom R. Sundermann
- Medicinal Chemistry, Institute
of Pharmacy and Molecular Biotechnology IPMB, Heidelberg University, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany
| | - Christian D. Klein
- Medicinal Chemistry, Institute
of Pharmacy and Molecular Biotechnology IPMB, Heidelberg University, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany
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14
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Zhang T, Wang T, Fang Z. Synthesis, screening and sensing applications of a novel fluorescent probe based on C-glycosides. RSC Adv 2016. [DOI: 10.1039/c5ra26037j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
A novel water soluble fluorescent probe based on C-glycoside with an aromatic aldehyde unit has been synthesized and its UV/Vis and fluorescence spectra, aggregation and disaggregation with bovine serum albumin were studied.
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Affiliation(s)
- Tao Zhang
- Department of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Tianyi Wang
- Department of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Zhijie Fang
- Department of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
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15
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Tsukiji S, Hamachi I. Ligand-directed tosyl chemistry for in situ native protein labeling and engineering in living systems: from basic properties to applications. Curr Opin Chem Biol 2014; 21:136-43. [DOI: 10.1016/j.cbpa.2014.07.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 07/11/2014] [Accepted: 07/14/2014] [Indexed: 11/17/2022]
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16
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Adak AK, Li BY, Huang LD, Lin TW, Chang TC, Hwang KC, Lin CC. Fabrication of antibody microarrays by light-induced covalent and oriented immobilization. ACS APPLIED MATERIALS & INTERFACES 2014; 6:10452-10460. [PMID: 24903424 DOI: 10.1021/am502011r] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Antibody microarrays have important applications for the sensitive detection of biologically important target molecules and as biosensors for clinical applications. Microarrays produced by oriented immobilization of antibodies generally have higher antigen-binding capacities than those in which antibodies are immobilized with random orientations. Here, we present a UV photo-cross-linking approach that utilizes boronic acid to achieve oriented immobilization of an antibody on a surface while retaining the antigen-binding activity of the immobilized antibody. A photoactive boronic acid probe was designed and synthesized in which boronic acid provided good affinity and specificity for the recognition of glycan chains on the Fc region of the antibody, enabling covalent tethering to the antibody upon exposure to UV light. Once irradiated with optimal UV exposure (16 mW/cm(2)), significant antibody immobilization on a boronic acid-presenting surface with maximal antigen detection sensitivity in a single step was achieved, thus obviating the necessity of prior antibody modifications. The developed approach is highly modular, as demonstrated by its implementation in sensitive sandwich immunoassays for the protein analytes Ricinus communis agglutinin 120, human prostate-specific antigen, and interleukin-6 with limits of detection of 7.4, 29, and 16 pM, respectively. Furthermore, the present system enabled the detection of multiple analytes in samples without any noticeable cross-reactivities. Antibody coupling via the use of boronic acid and UV light represents a practical, oriented immobilization method with significant implications for the construction of a large array of immunosensors for diagnostic applications.
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Affiliation(s)
- Avijit K Adak
- Department of Chemistry, National Tsing Hua University , Hsinchu 300, Taiwan
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