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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2017-2018. MASS SPECTROMETRY REVIEWS 2023; 42:227-431. [PMID: 34719822 DOI: 10.1002/mas.21721] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/26/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
This review is the tenth update of the original article published in 1999 on the application of matrix-assisted laser desorption/ionization mass spectrometry (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2018. Also included are papers that describe methods appropriate to glycan and glycoprotein analysis by MALDI, such as sample preparation techniques, even though the ionization method is not MALDI. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, new methods, matrices, derivatization, MALDI imaging, fragmentation and the use of arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Most of the applications are presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. The reported work shows increasing use of combined new techniques such as ion mobility and highlights the impact that MALDI imaging is having across a range of diciplines. MALDI is still an ideal technique for carbohydrate analysis and advancements in the technique and the range of applications continue steady progress.
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Affiliation(s)
- David J Harvey
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Oxford, UK
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2
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Detwiler RE, Kramer JR. Preparation and applications of artificial mucins in biomedicine. CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE 2022; 26:101031. [PMID: 37283850 PMCID: PMC10243510 DOI: 10.1016/j.cossms.2022.101031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
Mucus is an essential barrier material that separates organisms from the outside world. This slippery material regulates the transport of nutrients, drugs, gases, and pathogens toward the cell surface. The surface of the cell itself is coated in a mucus-like barrier of glycoproteins and glycolipids. Mucin glycoproteins are the primary component of mucus and the epithelial glycocalyx. Aberrant mucin production is implicated in diverse disease states from cancer and inflammation to pre-term birth and infection. Biological mucins are inherently heterogenous in structure, which has challenged understanding their molecular functions as a barrier and as biochemically active proteins. Therefore, many synthetic materials have been developed as artificial mucins with precisely tunable structures. This review highlights advances in design and synthesis of artificial mucins and their application in biomedical studies of mucin chemistry, biology, and physics.
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Affiliation(s)
- Rachel E. Detwiler
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch
Dr., Salt Lake City, UT 84112, USA
| | - Jessica R. Kramer
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch
Dr., Salt Lake City, UT 84112, USA
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Kohout VR, Wardzala CL, Kramer JR. Synthesis and biomedical applications of mucin mimic materials. Adv Drug Deliv Rev 2022; 191:114540. [PMID: 36228896 PMCID: PMC10066857 DOI: 10.1016/j.addr.2022.114540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 08/17/2022] [Accepted: 09/13/2022] [Indexed: 02/09/2023]
Abstract
Mucin glycoproteins are the major component of mucus and coat epithelial cell surfaces forming the glycocalyx. The glycocalyx and mucus are involved in the transport of nutrients, drugs, gases, and pathogens toward the cell surface. Mucins are also involved in diverse diseases such as cystic fibrosis and cancer. Due to inherent heterogeneity in native mucin structure, many synthetic materials have been designed to probe mucin chemistry, biology, and physics. Such materials include various glycopolymers, low molecular weight glycopeptides, glycopolypeptides, polysaccharides, and polysaccharide-protein conjugates. This review highlights advances in the area of design and synthesis of mucin mimic materials, and their biomedical applications in glycan binding, epithelial models of infection, therapeutic delivery, vaccine formulation, and beyond.
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Affiliation(s)
- Victoria R Kohout
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Dr., Salt Lake City, UT 84112, USA
| | - Casia L Wardzala
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Dr., Salt Lake City, UT 84112, USA
| | - Jessica R Kramer
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Dr., Salt Lake City, UT 84112, USA.
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Exploring the In situ pairing of human galectins toward synthetic O-mannosylated core M1 glycopeptides of α-dystroglycan. Sci Rep 2022; 12:17800. [PMID: 36274065 PMCID: PMC9588787 DOI: 10.1038/s41598-022-22758-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/19/2022] [Indexed: 01/19/2023] Open
Abstract
Dystroglycan (DG), which constitutes a part of the dystrophin-glycoprotein complex, connects the extracellular matrix to the cytoskeleton. The matriglycans presented by the extracellular α-DG serve as a contact point with extracellular matrix proteins (ECM) containing laminin G-like domains, providing cellular stability. However, it remains unknown whether core M1 (GlcNAcβ1-2Man) structures can serve as ligands among the various O-Mannosylated glycans. Therefore, based on the presence of N-acetylLactosamine (LacNAc) in this glycan following the core extension, the binding interactions with adhesion/growth-regulatory galectins were explored. To elucidate this process, the interaction between galectin (Gal)-1, -3, -4 and -9 with α-DG fragment 372TRGAIIQTPTLGPIQPTRV390 core M1-based glycopeptide library were profiled, using glycan microarray and nuclear magnetic resonance studies. The binding of galectins was revealed irrespective of its modular architecture, adding galectins to the list of possible binding partners of α-DG core M1 glycoconjugates by cis-binding (via peptide- and carbohydrate-protein interactions), which can be abrogated by α2,3-sialylation of the LacNAc units. The LacNAc-terminated α-DG glycopeptide interact simultaneously with both the S- and F-faces of Gal-1, thereby inducing oligomerization. Furthermore, Gal-1 can trans-bridge α-DG core M1 structures and laminins, which proposed a possible mechanism by which Gal-1 ameliorates muscular dystrophies; however, this proposal warrants further investigation.
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Shiratori K, Yokoi Y, Wakui H, Hirane N, Otaki M, Hinou H, Yoneyama T, Hatakeyama S, Kimura S, Ohyama C, Nishimura SI. Selective reaction monitoring approach using structure-defined synthetic glycopeptides for validating glycopeptide biomarkers pre-determined by bottom-up glycoproteomics. RSC Adv 2022; 12:21385-21393. [PMID: 35975084 PMCID: PMC9347767 DOI: 10.1039/d2ra02903k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 07/07/2022] [Indexed: 11/21/2022] Open
Abstract
Clusterin is a heavily glycosylated protein that is upregulated in various cancer and neurological diseases. The findings by the Hancock and Iliopoulos group that levels of the tryptic glycopeptide derived from plasma clusterin, 372Leu-Ala-Asn-Leu-Thr-Gln-Gly-Glu-Asp-Gln-Tyr-Tyr-Leu-Arg385 with a biantennary disialyl N-glycan (A2G2S2 or FA2G2S2) at Asn374 differed significantly prior to and after curative nephrectomy for clear cell renal cell carcinoma (RCC) patients motivated us to verify the feasibility of this glycopeptide as a novel biomarker of RCC. To determine the precise N-glycan structure attached to Asn374, whether A2G2S2 is composed of the Neu5Acα2,3Gal or/and the Neu5Acα2,6Gal moiety, we synthesized key glycopeptides having one of the two putative isomers. Selective reaction monitoring assay using synthetic glycopeptides as calibration standards allowed "top-down glycopeptidomics" for the absolute quantitation of targeted label-free glycopeptides in a range from 313.3 to 697.5 nM in the complex tryptic digests derived from serum samples of RCC patients and healthy controls. Our results provided evidence that the Asn374 residue of human clusterin is modified dominantly with the Neu5Acα2,6Gal structure and the levels of clusterin bearing an A2G2S2 with homo Neu5Acα2,6Gal terminals at Asn374 decrease significantly in RCC patients as compared with healthy controls. The present study elicits that a new strategy integrating the bottom-up glycoproteomics with top-down glycopeptidomics using structure-defined synthetic glycopeptides enables the confident identification and quantitation of the glycopeptide targets pre-determined by the existing methods for intact glycopeptide profiling.
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Affiliation(s)
- Kouta Shiratori
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Yasuhiro Yokoi
- ENU Pharma, Co., Ltd N7, W6, Kita-ku Sapporo 060-0807 Japan
| | - Hajime Wakui
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Nozomi Hirane
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Michiru Otaki
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Hiroshi Hinou
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Tohru Yoneyama
- Department of Urology, Graduate School of Medicine, Hirosaki University Hirosaki 036-8562 Japan
| | - Shingo Hatakeyama
- Department of Urology, Graduate School of Medicine, Hirosaki University Hirosaki 036-8562 Japan
| | - Satoshi Kimura
- Department of Laboratory Medicine and Central Clinical Laboratory, Showa University, Northern Yokohama Hospital Yokohama 224-8503 Japan
| | - Chikara Ohyama
- Department of Urology, Graduate School of Medicine, Hirosaki University Hirosaki 036-8562 Japan
| | - Shin-Ichiro Nishimura
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
- ENU Pharma, Co., Ltd N7, W6, Kita-ku Sapporo 060-0807 Japan
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Cerullo AR, Lai TY, Allam B, Baer A, Barnes WJP, Barrientos Z, Deheyn DD, Fudge DS, Gould J, Harrington MJ, Holford M, Hung CS, Jain G, Mayer G, Medina M, Monge-Nájera J, Napolitano T, Espinosa EP, Schmidt S, Thompson EM, Braunschweig AB. Comparative Animal Mucomics: Inspiration for Functional Materials from Ubiquitous and Understudied Biopolymers. ACS Biomater Sci Eng 2020; 6:5377-5398. [DOI: 10.1021/acsbiomaterials.0c00713] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Antonio R. Cerullo
- The PhD Program in Biochemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
- The Advanced Science Research Center, Graduate Center of the City University of New York, 85 St. Nicholas Terrace, New York, New York 10031, United States
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States
| | - Tsoi Ying Lai
- The Advanced Science Research Center, Graduate Center of the City University of New York, 85 St. Nicholas Terrace, New York, New York 10031, United States
| | - Bassem Allam
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York 11794-5000, United States
| | - Alexander Baer
- Department of Zoology, Institute of Biology, University of Kassel, Heinrich-Plett-Strasse 40, 34132 Kassel, Germany
| | - W. Jon P. Barnes
- Centre for Cell Engineering, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, Scotland, U.K
| | - Zaidett Barrientos
- Laboratorio de Ecología Urbana, Universidad Estatal a Distancia, Mercedes de Montes de Oca, San José 474-2050, Costa Rica
| | - Dimitri D. Deheyn
- Marine Biology Research Division-0202, Scripps Institute of Oceanography, UCSD, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Douglas S. Fudge
- Schmid College of Science and Technology, Chapman University, 1 University Drive, Orange, California 92866, United States
| | - John Gould
- School of Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, New South Wales 2308, Australia
| | - Matthew J. Harrington
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Mandë Holford
- The PhD Program in Biochemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States
- Department of Invertebrate Zoology, The American Museum of Natural History, New York, New York 10024, United States
- The PhD Program in Chemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
- The PhD Program in Biology, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
| | - Chia-Suei Hung
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
| | - Gaurav Jain
- Schmid College of Science and Technology, Chapman University, 1 University Drive, Orange, California 92866, United States
| | - Georg Mayer
- Department of Zoology, Institute of Biology, University of Kassel, Heinrich-Plett-Strasse 40, 34132 Kassel, Germany
| | - Mónica Medina
- Department of Biology, Pennsylvania State University, 208 Mueller Lab, University Park, Pennsylvania 16802, United States
| | - Julian Monge-Nájera
- Laboratorio de Ecología Urbana, Universidad Estatal a Distancia, Mercedes de Montes de Oca, San José 474-2050, Costa Rica
| | - Tanya Napolitano
- The PhD Program in Biochemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States
| | - Emmanuelle Pales Espinosa
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York 11794-5000, United States
| | - Stephan Schmidt
- Institute of Organic and Macromolecular Chemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Eric M. Thompson
- Sars Centre for Marine Molecular Biology, Thormøhlensgt. 55, 5020 Bergen, Norway
- Department of Biological Sciences, University of Bergen, N-5006 Bergen, Norway
| | - Adam B. Braunschweig
- The PhD Program in Biochemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
- The Advanced Science Research Center, Graduate Center of the City University of New York, 85 St. Nicholas Terrace, New York, New York 10031, United States
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States
- The PhD Program in Chemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
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7
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Guillen-Poza PA, Sánchez-Fernández EM, Artigas G, García Fernández JM, Hinou H, Ortiz Mellet C, Nishimura SI, Garcia-Martin F. Amplified Detection of Breast Cancer Autoantibodies Using MUC1-Based Tn Antigen Mimics. J Med Chem 2020; 63:8524-8533. [PMID: 32672464 DOI: 10.1021/acs.jmedchem.0c00908] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In many human carcinomas, mucin-1 (MUC1) is overexpressed and aberrantly glycosylated, resulting in the exposure of previously hidden antigens. This generates new patient antibody profiles that can be used in cancer diagnosis. In the present study, we focused on the MUC1-associated Tn antigen (α-O-GalNAc-Ser/Thr) and substituted the GalNAc monosaccharide by a glycomimic to identify MUC1-based glycopeptides with increased antigenicity. Two different glycopeptide libraries presenting the natural Tn antigen or the sp2-iminosugar analogue were synthesized and evaluated with anti-MUC1 monoclonal antibodies in a microarray platform. The most promising candidates were tested with healthy and breast cancer sera aiming for potential autoantibody-based biomarkers. The suitability of sp2-iminosugar glycopeptides to detect anti-MUC1 antibodies was demonstrated, and serological experiments showed stage I breast cancer autoantibodies binding with a specific unnatural glycopeptide with almost no healthy serum interaction. These results will promote further studies on their capabilities as early cancer biomarkers.
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Affiliation(s)
- Pablo A Guillen-Poza
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University, N21 W11, Kita-ku, 001-0021 Sapporo, Japan
| | - Elena M Sánchez-Fernández
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, E-41012 Seville, Spain
| | - Gerard Artigas
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University, N21 W11, Kita-ku, 001-0021 Sapporo, Japan
| | | | - Hiroshi Hinou
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University, N21 W11, Kita-ku, 001-0021 Sapporo, Japan
| | - Carmen Ortiz Mellet
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, E-41012 Seville, Spain
| | - Shin-Ichiro Nishimura
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University, N21 W11, Kita-ku, 001-0021 Sapporo, Japan
| | - Fayna Garcia-Martin
- Field of Drug Discovery Research, Faculty of Advanced Life Science, and Graduate School of Life Science, Hokkaido University, N21 W11, Kita-ku, 001-0021 Sapporo, Japan
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8
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Functional Glycopolypeptides: Synthesis and Biomedical Applications. ADVANCES IN POLYMER TECHNOLOGY 2020. [DOI: 10.1155/2020/6052078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Employing natural-based renewable sugar and saccharide resources to construct functional biopolymer mimics is a promising research frontier for green chemistry and sustainable biotechnology. As the mimics/analogues of natural glycoproteins, synthetic glycopolypeptides attracted great attention in the field of biomaterials and nanobiotechnology. This review describes the synthetic strategies and methods of glycopolypeptides and their analogues, the functional self-assemblies of the synthesized glycopolypeptides, and their biological applications such as biomolecular recognition, drug/gene delivery, and cell adhesion and targeting, as well as cell culture and tissue engineering. Future outlook of the synthetic glycopolypeptides was also discussed.
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9
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Wakui H, Tanaka Y, Ose T, Matsumoto I, Kato K, Min Y, Tachibana T, Sato M, Naruchi K, Martin FG, Hinou H, Nishimura SI. A straightforward approach to antibodies recognising cancer specific glycopeptidic neoepitopes. Chem Sci 2020; 11:4999-5006. [PMID: 34122956 PMCID: PMC8159228 DOI: 10.1039/d0sc00317d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 11/18/2020] [Accepted: 04/23/2020] [Indexed: 12/14/2022] Open
Abstract
Aberrantly truncated immature O-glycosylation in proteins occurs in essentially all types of epithelial cancer cells, which was demonstrated to be a common feature of most adenocarcinomas and strongly associated with cancer proliferation and metastasis. Although extensive efforts have been made toward the development of anticancer antibodies targeting MUC1, one of the most studied mucins having cancer-relevant immature O-glycans, no anti-MUC1 antibody recognises carbohydrates and the proximal MUC1 peptide region, concurrently. Here we present a general strategy that allows for the creation of antibodies interacting specifically with glycopeptidic neoepitopes by using homogeneous synthetic MUC1 glycopeptides designed for the streamlined process of immunization, antibody screening, three-dimensional structure analysis, epitope mapping and biochemical analysis. The X-ray crystal structure of the anti-MUC1 monoclonal antibody SN-101 complexed with the antigenic glycopeptide provides for the first time evidence that SN-101 recognises specifically the essential epitope by forming multiple hydrogen bonds both with the proximal peptide and GalNAc linked to the threonine residue, concurrently. Remarkably, the structure of the MUC1 glycopeptide in complex with SN-101 is identical to its solution NMR structure, an extended conformation induced by site-specific glycosylation. We demonstrate that this method accelerates dramatically the development of a new class of designated antibodies targeting a variety of "dynamic neoepitopes" elaborated by disease-specific O-glycosylation in the immunodominant mucin domains and mucin-like sequences found in intrinsically disordered regions of many proteins.
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Affiliation(s)
- Hajime Wakui
- Field of Drug Discovery Research, Faculty of Advanced Life Science, Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Yoshikazu Tanaka
- Graduate School of Life Sciences, Tohoku University 2-1-1 Katahira, Aoba-ku Sendai 980-8577 Japan
| | - Toyoyuki Ose
- Field of X-ray Structural Biology, Faculty of Advanced Life Science, Graduate School of Life Science, Hokkaido University N10 W8, Kita-ku Sapporo 060-0810 Japan
| | - Isamu Matsumoto
- Field of X-ray Structural Biology, Faculty of Advanced Life Science, Graduate School of Life Science, Hokkaido University N10 W8, Kita-ku Sapporo 060-0810 Japan
| | - Koji Kato
- Research Institute for Interdisciplinary Science and Graduate School of Natural Science and Technology, Okayama University 3-1-1, Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| | - Yao Min
- Field of X-ray Structural Biology, Faculty of Advanced Life Science, Graduate School of Life Science, Hokkaido University N10 W8, Kita-ku Sapporo 060-0810 Japan
| | - Taro Tachibana
- Department of Bioengineering, Graduate School of Engineering, Osaka City University Sumiyoshi-ku Osaka 558-8585 Japan
| | - Masaharu Sato
- Medicinal Chemistry Pharmaceuticals, Co., Ltd. N9 W15, Chuo-ku Sapporo 060-0009 Japan
| | - Kentaro Naruchi
- Medicinal Chemistry Pharmaceuticals, Co., Ltd. N9 W15, Chuo-ku Sapporo 060-0009 Japan
| | - Fayna Garcia Martin
- Field of Drug Discovery Research, Faculty of Advanced Life Science, Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Hiroshi Hinou
- Field of Drug Discovery Research, Faculty of Advanced Life Science, Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
| | - Shin-Ichiro Nishimura
- Field of Drug Discovery Research, Faculty of Advanced Life Science, Graduate School of Life Science, Hokkaido University N21 W11, Kita-ku Sapporo 001-0021 Japan
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10
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Impaired O-Glycosylation at Consecutive Threonine TTX Motifs in Mucins Generates Conformationally Restricted Cancer Neoepitopes. Biochemistry 2020; 59:1221-1241. [PMID: 32155332 DOI: 10.1021/acs.biochem.0c00007] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Autoantibody signatures of circulating mucin fragments stem from cancer tissues, and microenvironments are promising biomarkers for cancer diagnosis and therapy. This study highlights dynamic epitopes generated by aberrantly truncated immature O-glycosylation at consecutive threonine motifs (TTX) found in mucins and intrinsically disordered proteins (IDPs). NMR analysis of synthetic mucin models having glycosylated TTX motifs and colonic MUC2 tandem repeats (TRs) containing TTP and TTL moieties unveils a general principle that O-glycosylation at TTX motifs generates a highly extended and rigid conformation in IDPs. We demonstrate that the specific conformation of glycosylated TTX motifs in MUC2 TRs is rationally rearranged by concerted motions of multiple dihedral angles and noncovalent interactions between the carbohydrate and peptide region. Importantly, this canonical conformation of glycosylated TTX motifs minimizes steric crowding of glycans attached to threonine residues, in which O-glycans possess restricted orientations permitting further sugar extension. An antiadhesive microarray displaying synthetic MUC2 derivatives elicited the presence of natural autoantibodies to MUC2 with impaired O-glycosylation at TTX motifs in sera of healthy volunteers and patients diagnosed with early stage colorectal cancer (CRC). Interestingly, autoantibody levels in sera of the late stage CRC patients were distinctly lower than those of early stage CRC and normal individuals, indicating that the anti-MUC2 humoral response to MUC2 neoepitopes correlates inversely with the CRC stage of patients. Our results uncovered the structural basis of the creation of dynamic epitopes by immature O-glycosylation at TTX motifs in mucins that facilitates the identification of high-potential targets for cancer diagnosis and therapy.
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11
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Bashir S, Leviatan Ben Arye S, Reuven EM, Yu H, Costa C, Galiñanes M, Bottio T, Chen X, Padler-Karavani V. Presentation Mode of Glycans Affect Recognition of Human Serum anti-Neu5Gc IgG Antibodies. Bioconjug Chem 2018; 30:161-168. [PMID: 30500162 DOI: 10.1021/acs.bioconjchem.8b00817] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Recognition of carbohydrates by antibodies can be affected by antigen composition and density. This had been investigated in a variety of controllable multivalent systems using synthetic carbohydrate antigens, yet such effects on anticarbohydrate antibodies in circulating human serum have not been fully addressed thus far. All humans develop a polyclonal and diverse response against carbohydrates containing a nonhuman sialic acid form, N-glycolylneuraminic acid (Neu5Gc). This red meat-derived monosaccharide is incorporated into a diverse collection of human glycans resulting in circulating anti-Neu5Gc antibodies in human sera. Such antibodies can cause exacerbation of diseases mediated by chronic inflammation such as cancer and atherosclerosis. We aimed to evaluate how different presentation modes of Neu5Gc-glycans can affect the detection of anti-Neu5Gc IgGs in human serum. Here, we compare serum IgG recognition of Neu5Gc-containing glycoproteins, glycopeptides, and synthetic glycans. First, Neu5Gc-positive or Neu5Gc-deficient mouse strains were used to generate glycopeptides from serum glycoproteins. Then we developed a reproducible ELISA to screen human sera against Neu5Gc-positive glycopeptides for detection of human serum anti-Neu5Gc IgGs. Finally, we evaluated ELISA screens against glycopeptides in comparison with glycoproteins, as well as against elaborated arrays displaying synthetic Neu5Gc-glycans. Our results demonstrate that the presentation mode and diversity of Neu5Gc-glycans are critical for detection of the full collection of human serum anti-Neu5Gc IgGs.
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Affiliation(s)
- Salam Bashir
- The George S. Wise Faculty of Life Sciences, Department of Cell Research and Immunology , Tel Aviv University , Tel Aviv , 69978 , Israel
| | - Shani Leviatan Ben Arye
- The George S. Wise Faculty of Life Sciences, Department of Cell Research and Immunology , Tel Aviv University , Tel Aviv , 69978 , Israel
| | - Eliran Moshe Reuven
- The George S. Wise Faculty of Life Sciences, Department of Cell Research and Immunology , Tel Aviv University , Tel Aviv , 69978 , Israel
| | - Hai Yu
- Department of Chemistry , University of California-Davis , Davis , California 95616 , United States
| | - Cristina Costa
- Infectious Pathology and Transplantation Division , Institut d'Investigació Biomèdica de Bellvitge (IDIBELL) , Hospitalet de Llobregat 08908 , Spain
| | - Manuel Galiñanes
- Reparative Therapy of the Heart, Vall d'Hebron Research Institute (VHIR) and Department of Cardiac Surgery , University Hospital Vall d'Hebron, Autonomous University of Barcelona (AUB) , Barcelona , 08035 , Spain
| | - Tomaso Bottio
- Department of Thoracic and Cardiovascular Sciences and Public Health , University of Padova , Padova , 35122 , Italy
| | - Xi Chen
- Department of Chemistry , University of California-Davis , Davis , California 95616 , United States
| | - Vered Padler-Karavani
- The George S. Wise Faculty of Life Sciences, Department of Cell Research and Immunology , Tel Aviv University , Tel Aviv , 69978 , Israel
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12
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13
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Lin TH, Lin CH, Liu YJ, Huang CY, Lin YC, Wang SK. Controlling Ligand Spacing on Surface: Polyproline-Based Fluorous Microarray as a Tool in Spatial Specificity Analysis and Inhibitor Development for Carbohydrate-Protein Interactions. ACS APPLIED MATERIALS & INTERFACES 2017; 9:41691-41699. [PMID: 29148699 DOI: 10.1021/acsami.7b13200] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Multivalent carbohydrate-protein interactions are essential for many biological processes. Convenient characterization for multivalent binding property of proteins will aid the development of molecules to manipulate these processes. We exploited the polyproline helix II (PPII) structure as molecular scaffolds to adjust the distances between glycan ligand attachment sites at 9, 18, and 27 Å on a peptide scaffold. Optimized fluorous groups were also introduced to the peptide scaffold for immobilization to the microarray surface through fluorous interaction to control the orientation of the helical scaffolds. Using lectin LecA and antibody 2G12 as model proteins, the binding preference to the 27 Å glycopeptide scaffold, matched the distance of 26 Å between its two galactose binding sites on LecA and 31 Å spacing between oligomannose binding sites on 2G12, respectively. We further demonstrate this microarray system can aid the development of inhibitors by transforming the selected surface-bound scaffold into multivalent ligands in solution. This strategy can be extended to analyze proteins that lacking structural information to speed up the design of potent and selective multivalent ligands.
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Affiliation(s)
- Tse-Hsueh Lin
- Department of Chemistry, National Tsing Hua University , Hsinchu, Taiwan R.O.C
| | - Cin-Hao Lin
- Department of Chemistry, National Tsing Hua University , Hsinchu, Taiwan R.O.C
| | - Ying-Jie Liu
- Department of Chemistry, National Tsing Hua University , Hsinchu, Taiwan R.O.C
| | - Chun Yi Huang
- Department of Chemistry, National Tsing Hua University , Hsinchu, Taiwan R.O.C
| | - Yen-Cheng Lin
- Department of Chemistry, National Tsing Hua University , Hsinchu, Taiwan R.O.C
| | - Sheng-Kai Wang
- Department of Chemistry, National Tsing Hua University , Hsinchu, Taiwan R.O.C
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14
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Artigas G, Monteiro JT, Hinou H, Nishimura SI, Lepenies B, Garcia-Martin F. Glycopeptides as Targets for Dendritic Cells: Exploring MUC1 Glycopeptides Binding Profile toward Macrophage Galactose-Type Lectin (MGL) Orthologs. J Med Chem 2017; 60:9012-9021. [PMID: 29045792 DOI: 10.1021/acs.jmedchem.7b01242] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The macrophage galactose-type lectin (MGL) recognizes glycan moieties exposed by pathogens and malignant cells. Particularly, mucin-1 (MUC1) glycoprotein presents an altered glycosylation in several cancers. To estimate the ability of distinct MGL orthologs to recognize aberrant glycan cores in mucins, we applied evanescent-field detection to a versatile MUC1-like glycopeptide microarray platform. Here, as binding was sequence-dependent, we demonstrated that not only sugars but also peptide region impact the recognition of murine MGL1 (mMGL1). In addition, we observed for all three MGL orthologs that divalent glycan presentation increased the binding. To assess the utility of the glycopeptide binders of the MGL orthologs for MGL targeting, we performed uptake assays with fluorescein-MUC1 using murine dendritic cells. A diglycosylated MUC1 peptide was preferentially internalized in an MGL-dependent fashion, thus showing the utility for divalent MGL targeting. These findings may be relevant to a rational design of antitumor vaccines targeting dendritic cells via MGL.
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Affiliation(s)
- Gerard Artigas
- Faculty of Advanced Life Science and Graduate School of Life Science, Hokkaido University , N21, W11, Kita-ku, 001-0021 Sapporo, Japan
| | - João T Monteiro
- Immunology Unit & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover , Bünteweg 17, 30559 Hannover, Germany
| | - Hiroshi Hinou
- Faculty of Advanced Life Science and Graduate School of Life Science, Hokkaido University , N21, W11, Kita-ku, 001-0021 Sapporo, Japan.,Medicinal Chemistry Pharmaceuticals, Co., Ltd. N9W15, Chuo-ku, 060-0009 Sapporo, Japan
| | - Shin-Ichiro Nishimura
- Faculty of Advanced Life Science and Graduate School of Life Science, Hokkaido University , N21, W11, Kita-ku, 001-0021 Sapporo, Japan.,Medicinal Chemistry Pharmaceuticals, Co., Ltd. N9W15, Chuo-ku, 060-0009 Sapporo, Japan
| | - Bernd Lepenies
- Immunology Unit & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover , Bünteweg 17, 30559 Hannover, Germany
| | - Fayna Garcia-Martin
- Faculty of Advanced Life Science and Graduate School of Life Science, Hokkaido University , N21, W11, Kita-ku, 001-0021 Sapporo, Japan
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15
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Manning JC, García Caballero G, Knospe C, Kaltner H, Gabius HJ. Network analysis of adhesion/growth-regulatory galectins and their binding sites in adult chicken retina and choroid. J Anat 2017; 231:23-37. [PMID: 28425099 DOI: 10.1111/joa.12612] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2017] [Indexed: 12/22/2022] Open
Abstract
The highly ordered multilayered organization of the adult chicken retina is a suitable test model for examining zonal distribution of the members of a bioeffector family. Based on the concept of the sugar code, the functional pairing of glycan epitopes with cognate receptors (lectins) is emerging as a means to explain the control of diverse physiological activities. Having recently completed the biochemical characterization of all seven adhesion/growth-regulatory galectins present in chicken, it was possible to establish how the individual characteristics of their expression profiles add up to shape the galectin network, which until now has not been defined at this level of complexity. This information will also have relevance in explaining the region-specific presence of glycan determinants in the retina, as illustrated in the first part of this study using a panel of nine plant/fungal agglutinins. The following systematic monitoring of the galectins yielded patterns for which quantitative and qualitative differences were detected. Obviously, positivity in distinct layers is not confined to a single protein of this family, e.g. CG-1A, CG-3 or CG-8. These results underline the requirement for network analysis for these proteins that can functionally interact in additive or antagonistic modes. Labeling of the tissue galectins facilitated profiling of their accessible binding sites. It also revealed differences among the galectin family members, highlighting the ability of this method to define binding properties on the level of tissue sections. Methodologically, the detection of endogenous lectins intimates that cognate glycans can become inaccessible, a notable caveat for lectin histochemical studies.
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Affiliation(s)
- Joachim C Manning
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Gabriel García Caballero
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Clemens Knospe
- Institute of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
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