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Kutzner TJ, Higuero AM, Süßmair M, Hingar M, Kaltner H, Lindner I, Kopitz J, Abad-Rodríguez J, Reusch D, Gabius HJ. What Happens If a Human Galectin Enters the Endoplasmic Reticulum? Methods Mol Biol 2022; 2442:247-288. [PMID: 35320531 DOI: 10.1007/978-1-0716-2055-7_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Mammalian galectins have no signal peptide, and it is not known what would happen if a galectin is directed to take the classical export route. The corresponding engineering of galectin-specific cDNA will answer questions on the fate of a signal peptide-bearing protein variant after its entry into the endoplasmic reticulum (ER). Affinity chromatography and mass-spectrometric analysis of occupancy of potential N-glycosylation sites for the galectin, binding and functional assays with cells as well as subcellular fractionation by density gradient ultracentrifugation and immunocytochemical colocalization with ER/Golgi markers report on aspects of the consequences of letting a galectin enter new territory. Applying these methods will help to clarify why galectins are leaderless and thus produced by free ribosomes.
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Affiliation(s)
- Tanja J Kutzner
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Alonso M Higuero
- Membrane Biology and Axonal Repair Laboratory, Hospital Nacional de Parapléjicos (SESCAM), Toledo, Spain
| | - Martina Süßmair
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, Penzberg, Germany
| | - Michael Hingar
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, Penzberg, Germany
| | - Herbert Kaltner
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Ingo Lindner
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, Penzberg, Germany
| | - Jürgen Kopitz
- Department of Applied Tumor Biology, Institute of Pathology, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - José Abad-Rodríguez
- Membrane Biology and Axonal Repair Laboratory, Hospital Nacional de Parapléjicos (SESCAM), Toledo, Spain
| | - Dietmar Reusch
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, Penzberg, Germany
| | - Hans-Joachim Gabius
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany.
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Kutzner TJ, Higuero AM, Süßmair M, Kopitz J, Hingar M, Díez-Revuelta N, Caballero GG, Kaltner H, Lindner I, Abad-Rodríguez J, Reusch D, Gabius HJ. How presence of a signal peptide affects human galectins-1 and -4: Clues to explain common absence of a leader sequence among adhesion/growth-regulatory galectins. Biochim Biophys Acta Gen Subj 2019; 1864:129449. [PMID: 31678146 DOI: 10.1016/j.bbagen.2019.129449] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 01/22/2023]
Abstract
BACKGROUND Galectins are multifunctional effectors, which all share absence of a signal sequence. It is not clear why galectins belong to the small set of proteins, which avoid the classical export route. METHODS Products of recombinant galectin expression in P. pastoris were analyzed by haemagglutination, gel filtration and electrophoresis and lectin blotting as well as mass spectrometry on the level of tryptic peptides and purified glycopeptides(s). Density gradient centrifugation and confocal laser scanning microscopy facilitated localization in transfected human and rat cells, proliferation assays determined activity as growth mediator. RESULTS Directing galectin-1 to the classical secretory pathway in yeast produces N-glycosylated protein that is active. It cofractionates and -localizes with calnexin in human cells, only Gal-4 is secreted. Presence of N-glycan(s) reduces affinity of cell binding and growth regulation by Gal-1. CONCLUSIONS Folding and activity of a galectin are maintained in signal-peptide-directed routing, N-glycosylation occurs. This pathway would deplete cytoplasm and nucleus of galectin, presence of N-glycans appears to interfere with lattice formation. GENERAL SIGNIFICANCE Availability of glycosylated galectins facilitates functional assays to contribute to explain why galectins invariably avoid classical routing for export.
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Affiliation(s)
- Tanja J Kutzner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Alonso M Higuero
- Membrane Biology and Axonal Repair Laboratory, Hospital Nacional de Parapléjicos (SESCAM), Finca La Peraleda s/n, 45071 Toledo, Spain
| | - Martina Süßmair
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, 82777 Penzberg, Germany
| | - Jürgen Kopitz
- Department of Applied Tumor Biology, Institute of Pathology, Ruprecht-Karls-University Heidelberg, Im Neuenheimer Feld 224, 69120 Heidelberg, Germany
| | - Michael Hingar
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, 82777 Penzberg, Germany
| | - Natalia Díez-Revuelta
- Membrane Biology and Axonal Repair Laboratory, Hospital Nacional de Parapléjicos (SESCAM), Finca La Peraleda s/n, 45071 Toledo, Spain
| | - Gabriel García Caballero
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Ingo Lindner
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, 82777 Penzberg, Germany
| | - José Abad-Rodríguez
- Membrane Biology and Axonal Repair Laboratory, Hospital Nacional de Parapléjicos (SESCAM), Finca La Peraleda s/n, 45071 Toledo, Spain.
| | - Dietmar Reusch
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, 82777 Penzberg, Germany.
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany.
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Si Y, Feng S, Gao J, Wang Y, Zhang Z, Meng Y, Zhou Y, Tai G, Su J. Human galectin-2 interacts with carbohydrates and peptides non-classically: new insight from X-ray crystallography and hemagglutination. Acta Biochim Biophys Sin (Shanghai) 2016; 48:939-947. [PMID: 27563008 DOI: 10.1093/abbs/gmw089] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 07/29/2016] [Indexed: 12/15/2022] Open
Abstract
Galectin-2 (Gal-2) plays a role in cancer, myocardial infarction, immune response, and gastrointestinal tract diseases. The only reported crystal structure of Gal-2 shows that it is a dimer in which the monomer subunits have almost identical structures, each binding with one molecule of lactose. In this study, we crystallized Gal-2 under new conditions that produced three crystal structures. In each Gal-2 dimer structure, lactose was shown to be bound to only one of the carbohydrate recognition domain subunits. In solution studies, the thermal shift assay demonstrated that inequivalent monomer subunits in the Gal-2 dimer become equivalent upon ligand binding. In addition, galectin-mediated erythrocyte agglutination assays using lactose and larger complex polysaccharides as inhibitors showed the structural differences between Gal-1 and Gal-2. Overall, our results reveal some novel aspects to the structural differentiation in Gal-2 and expand the potential for different types of molecular interactions that may be specific to this lectin.
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Affiliation(s)
- Yunlong Si
- Jilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Shiqiong Feng
- Jilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Jin Gao
- Jilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Yue Wang
- Jilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Zhongyu Zhang
- Jilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Yue Meng
- Jilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Yifa Zhou
- Jilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Guihua Tai
- Jilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Jiyong Su
- Jilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, China
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Abstract
INTRODUCTION Galectins have affinity for β-galactosides. Human galectin-1 is ubiquitously expressed in the body and its expression level can be a marker in disease. Targeted inhibition of galectin-1 gives potential for treatment of inflammatory disorders and anti-cancer therapeutics. AREAS COVERED This review discusses progress in galectin-1 inhibitor discovery and development. Patent applications pertaining to galectin-1 inhibitors are categorised as monovalent- and multivalent-carbohydrate-based inhibitors, peptides- and peptidomimetics. Furthermore, the potential of galectin-1 protein as a therapeutic is discussed along with consideration of the unique challenges that galectin-1 presents, including its monomer-dimer equilibrium and oxidized and reduced forms, with regard to delivering an intact protein to a pathologically relevant site. EXPERT OPINION Significant evidence implicates galectin-1's involvement in cancer progression, inflammation, and host-pathogen interactions. Conserved sequence similarity of the carbohydrate-binding sites of different galectins makes design of specific antagonists (blocking agents/inhibitors of function) difficult. Key challenges pertaining to the therapeutic use of galectin-1 are its monomer-dimer equilibrium, its redox state, and delivery of intact galectin-1 to the desired site. Developing modified forms of galectin-1 has resulted in increased stability and functional potency. Gene and protein therapy approaches that deliver the protein toward the target are under exploration as is exploitation of different inhibitor scaffolds.
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Affiliation(s)
- Helen Blanchard
- a Institute for Glycomics , Griffith University , Gold Coast Campus , Queensland , Australia
| | - Khuchtumur Bum-Erdene
- a Institute for Glycomics , Griffith University , Gold Coast Campus , Queensland , Australia
| | | | - Xing Yu
- a Institute for Glycomics , Griffith University , Gold Coast Campus , Queensland , Australia
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André S, O'sullivan S, Gabius H, Murphy PV. Glycoclusters as lectin inhibitors: comparative analysis on two plant agglutinins with different folding as a step towards rules for selectivity. Tetrahedron 2015; 71:6867-80. [DOI: 10.1016/j.tet.2015.07.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Hu D, Tateno H, Hirabayashi J. Lectin engineering, a molecular evolutionary approach to expanding the lectin utilities. Molecules 2015; 20:7637-56. [PMID: 25923514 DOI: 10.3390/molecules20057637] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 04/20/2015] [Accepted: 04/20/2015] [Indexed: 11/18/2022] Open
Abstract
In the post genomic era, glycomics—the systematic study of all glycan structures of a given cell or organism—has emerged as an indispensable technology in various fields of biology and medicine. Lectins are regarded as “decipherers of glycans”, being useful reagents for their structural analysis, and have been widely used in glycomic studies. However, the inconsistent activity and availability associated with the plant-derived lectins that comprise most of the commercially available lectins, and the limit in the range of glycan structures covered, have necessitated the development of innovative tools via engineering of lectins on existing scaffolds. This review will summarize the current state of the art of lectin engineering and highlight recent technological advances in this field. The key issues associated with the strategy of lectin engineering including selection of template lectin, construction of a mutagenesis library, and high-throughput screening methods are discussed.
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Rapoport EM, Matveeva VK, Kaltner H, André S, Vokhmyanina OA, Pazynina GV, Severov VV, Ryzhov IM, Korchagina EY, Belyanchikov IM, Gabius HJ, Bovin NV. Comparative lectinology: Delineating glycan-specificity profiles of the chicken galectins using neoglycoconjugates in a cell assay. Glycobiology 2015; 25:726-34. [PMID: 25681326 DOI: 10.1093/glycob/cwv012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 02/05/2015] [Indexed: 12/22/2022] Open
Abstract
A major aspect of carbohydrate-dependent galectin functionality is their cross-linking capacity. Using a cell surface as biorelevant platform for galectin binding and a panel of 40 glycans as sensor part of a fluorescent polyacrylamide neoglycopolymer for profiling galectin reactivity, properties of related proteins can be comparatively analyzed. The group of the chicken galectins (CGs) is an especially suited system toward this end due to its relatively small size, compared with mammalian galectins. The experiments reveal particularly strong reactivity toward N-acetyllactosamine repeats for all tested CGs and shared reactivity of CG-1A and CG-2 to histo-blood group ABH determinants. In cross-species comparison, CG-1B's properties closely resembled those of human galectin-1, as was the case for the galectin-2 (but not galectin-3) ortholog pair. Although binding-site architectures are rather similar, reactivity patterns can well differ.
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Affiliation(s)
- Eugenia M Rapoport
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997, ul. Miklukho-Maklaya16/10, Moscow, Russia
| | - Varvara K Matveeva
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997, ul. Miklukho-Maklaya16/10, Moscow, Russia
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University, Veterinärstr. 13, Munich 80539, Germany
| | - Sabine André
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University, Veterinärstr. 13, Munich 80539, Germany
| | - Olga A Vokhmyanina
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997, ul. Miklukho-Maklaya16/10, Moscow, Russia
| | - Galina V Pazynina
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997, ul. Miklukho-Maklaya16/10, Moscow, Russia
| | - Vyacheslav V Severov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997, ul. Miklukho-Maklaya16/10, Moscow, Russia
| | - Ivan M Ryzhov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997, ul. Miklukho-Maklaya16/10, Moscow, Russia
| | - Elena Yu Korchagina
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997, ul. Miklukho-Maklaya16/10, Moscow, Russia
| | - Ivan M Belyanchikov
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997, ul. Miklukho-Maklaya16/10, Moscow, Russia
| | - Hans-J Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University, Veterinärstr. 13, Munich 80539, Germany
| | - Nicolai V Bovin
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997, ul. Miklukho-Maklaya16/10, Moscow, Russia
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Rauthu SR, Shiao TC, André S, Miller MC, Madej É, Mayo KH, Gabius HJ, Roy R. Defining the Potential of Aglycone Modifications for Affinity/Selectivity Enhancement against Medically Relevant Lectins: Synthesis, Activity Screening, and HSQC-Based NMR Analysis. Chembiochem 2014; 16:126-39. [DOI: 10.1002/cbic.201402474] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Indexed: 12/28/2022]
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Marcelo F, Garcia-Martin F, Matsushita T, Sardinha J, Coelho H, Oude-Vrielink A, Koller C, André S, Cabrita EJ, Gabius HJ, Nishimura SI, Jiménez-Barbero J, Cañada FJ. Delineating Binding Modes of Gal/GalNAc and Structural Elements of the Molecular Recognition of Tumor-Associated Mucin Glycopeptides by the Human Macrophage Galactose-Type Lectin. Chemistry 2014; 20:16147-55. [DOI: 10.1002/chem.201404566] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Indexed: 01/05/2023]
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Toegel S, Bieder D, André S, Kayser K, Walzer SM, Hobusch G, Windhager R, Gabius H. Human osteoarthritic knee cartilage: fingerprinting of adhesion/growth-regulatory galectins in vitro and in situ indicates differential upregulation in severe degeneration. Histochem Cell Biol 2014; 142:373-88. [DOI: 10.1007/s00418-014-1234-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2014] [Indexed: 12/31/2022]
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Kopitz J, Vértesy S, André S, Fiedler S, Schnölzer M, Gabius HJ. Human chimera-type galectin-3: defining the critical tail length for high-affinity glycoprotein/cell surface binding and functional competition with galectin-1 in neuroblastoma cell growth regulation. Biochimie 2014; 104:90-9. [PMID: 24909114 DOI: 10.1016/j.biochi.2014.05.010] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 05/26/2014] [Indexed: 11/16/2022]
Abstract
Many human proteins have a modular design with receptor and structural domains. Using adhesion/growth-regulatory galectin-3 as model, we describe an interdisciplinary strategy to define the functional significance of its tail established by nine non-triple helical collagen-like repeats (I-IX) and the N-terminal peptide. Genetic engineering with sophisticated mass spectrometric product analysis provided the tools for biotesting, i.e. eight protein variants with different degrees of tail truncation. Evidently,various aspects of galectin-3 activity (cis binding and cell bridging) are affected by tail shortening in a different manner. Thus, this combined approach reveals an unsuspected complexity of structure-function relationship, encouraging further application beyond this chimera-type galectin.
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Affiliation(s)
- Jürgen Kopitz
- Abteilung für Angewandte Tumorbiologie, Zentrum Pathologie, Klinikum der Ruprecht-Karls-Universität, Im Neuenheimer Feld 224, 69120 Heidelberg, Germany.
| | - Sabine Vértesy
- Institut für Physiologische Chemie, Tierärztliche Fakultät, Ludwig-Maximilians-Universität, Veterinärstraße 13, 80539 München, Germany
| | - Sabine André
- Institut für Physiologische Chemie, Tierärztliche Fakultät, Ludwig-Maximilians-Universität, Veterinärstraße 13, 80539 München, Germany
| | - Sabine Fiedler
- Funktionelle Proteomanalyse, Deutsches Krebsforschungszentrum, Im Neuenheimer Feld 580, 69120 Heidelberg, Germany
| | - Martina Schnölzer
- Funktionelle Proteomanalyse, Deutsches Krebsforschungszentrum, Im Neuenheimer Feld 580, 69120 Heidelberg, Germany
| | - Hans-Joachim Gabius
- Institut für Physiologische Chemie, Tierärztliche Fakultät, Ludwig-Maximilians-Universität, Veterinärstraße 13, 80539 München, Germany
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Solís D, Bovin NV, Davis AP, Jiménez-Barbero J, Romero A, Roy R, Smetana K, Gabius HJ. A guide into glycosciences: How chemistry, biochemistry and biology cooperate to crack the sugar code. Biochim Biophys Acta Gen Subj 2014; 1850:186-235. [PMID: 24685397 DOI: 10.1016/j.bbagen.2014.03.016] [Citation(s) in RCA: 173] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 03/13/2014] [Accepted: 03/18/2014] [Indexed: 01/17/2023]
Abstract
BACKGROUND The most demanding challenge in research on molecular aspects within the flow of biological information is posed by the complex carbohydrates (glycan part of cellular glycoconjugates). How the 'message' encoded in carbohydrate 'letters' is 'read' and 'translated' can only be unraveled by interdisciplinary efforts. SCOPE OF REVIEW This review provides a didactic step-by-step survey of the concept of the sugar code and the way strategic combination of experimental approaches characterizes structure-function relationships, with resources for teaching. MAJOR CONCLUSIONS The unsurpassed coding capacity of glycans is an ideal platform for generating a broad range of molecular 'messages'. Structural and functional analyses of complex carbohydrates have been made possible by advances in chemical synthesis, rendering production of oligosaccharides, glycoclusters and neoglycoconjugates possible. This availability facilitates to test the glycans as ligands for natural sugar receptors (lectins). Their interaction is a means to turn sugar-encoded information into cellular effects. Glycan/lectin structures and their spatial modes of presentation underlie the exquisite specificity of the endogenous lectins in counterreceptor selection, that is, to home in on certain cellular glycoproteins or glycolipids. GENERAL SIGNIFICANCE Understanding how sugar-encoded 'messages' are 'read' and 'translated' by lectins provides insights into fundamental mechanisms of life, with potential for medical applications.
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Affiliation(s)
- Dolores Solís
- Instituto de Química Física "Rocasolano", CSIC, Serrano 119, 28006 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), 07110 Bunyola, Mallorca, Illes Baleares, Spain.
| | - Nicolai V Bovin
- Shemyakin & Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul Miklukho-Maklaya 16/10, 117871 GSP-7, V-437, Moscow, Russian Federation.
| | - Anthony P Davis
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK.
| | - Jesús Jiménez-Barbero
- Chemical and Physical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu, 9, 28040 Madrid, Spain.
| | - Antonio Romero
- Chemical and Physical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu, 9, 28040 Madrid, Spain.
| | - René Roy
- Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre-Ville, Montréal, Québec H3C 3P8, Canada.
| | - Karel Smetana
- Charles University, 1st Faculty of Medicine, Institute of Anatomy, U nemocnice 3, 128 00 Prague 2, Czech Republic.
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 München, Germany.
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Ruiz FM, Scholz BA, Buzamet E, Kopitz J, André S, Menéndez M, Romero A, Solís D, Gabius HJ. Natural single amino acid polymorphism (F19Y) in human galectin-8: detection of structural alterations and increased growth-regulatory activity on tumor cells. FEBS J 2014; 281:1446-1464. [DOI: 10.1111/febs.12716] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 01/02/2014] [Accepted: 01/05/2014] [Indexed: 01/08/2023]
Affiliation(s)
- Federico M. Ruiz
- Departamento de Biología Físico-Química; Centro de Investigaciones Biológicas; Madrid Spain
| | - Barbara A. Scholz
- Institut für Physiologische Chemie; Tierärztliche Fakultät; Ludwig-Maximilians-Universität München; Germany
| | - Eliza Buzamet
- Departamento de Química-Física Biológica; Instituto de Química Física Rocasolano; CSIC, and Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES); Madrid Spain
| | - Jürgen Kopitz
- Abteilung Angewandte Tumorbiologie; Universitätsklinikum Heidelberg; Germany
| | - Sabine André
- Institut für Physiologische Chemie; Tierärztliche Fakultät; Ludwig-Maximilians-Universität München; Germany
| | - Margarita Menéndez
- Departamento de Química-Física Biológica; Instituto de Química Física Rocasolano; CSIC, and Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES); Madrid Spain
| | - Antonio Romero
- Departamento de Biología Físico-Química; Centro de Investigaciones Biológicas; Madrid Spain
| | - Dolores Solís
- Departamento de Química-Física Biológica; Instituto de Química Física Rocasolano; CSIC, and Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES); Madrid Spain
| | - Hans-Joachim Gabius
- Institut für Physiologische Chemie; Tierärztliche Fakultät; Ludwig-Maximilians-Universität München; Germany
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Gabius HJ, Kayser K. Introduction to glycopathology: the concept, the tools and the perspectives. Diagn Pathol 2014; 9:4. [PMID: 24443956 PMCID: PMC4029355 DOI: 10.1186/1746-1596-9-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 12/06/2013] [Indexed: 01/13/2023] Open
Abstract
Virtual slides The virtual slides for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1670639891114983. Analyzing the flow of biological information is a fundamental challenge for basic sciences. The emerging results will then lend themselves to the development of new approaches for medical applications. Toward this end, the products of protein/lipid glycosylation deserve special attention. The covalent attachment of sugars to these carriers means much more than just a change of the carriers’ physicochemical properties. In principle, the ubiquitous presence of glycoconjugates and the close inspection of the particular structural ‘talents’ of carbohydrates provide suggestive evidence for information coding by sugars. In fact, the theoretical number of ‘words’ (oligomers) formed by ‘letters’ (monosaccharides) is by far higher than by using nucleotides or amino acids. In other words, glycans harbor an unsurpassed coding capacity. The cyto- and histochemical detection of dynamic changes in the profile of cellular glycans (glycome, the equivalent of the proteome) by sugar receptors such as antibodies used as tools underscores the suitability of carbohydrates for such a task. The resulting staining patterns can be likened to a molecular fingerprint. By acting as ligand (counterreceptor) for endogenous receptors (tissue lectins), glycan epitopes become partners in a specific recognition pair, and the sugar-encoded information can then be translated into effects, e.g. in growth regulation. Of note, expression of both sides of such a pair, i.e. lectin and cognate glycan, can physiologically be orchestrated for optimal efficiency. Indeed, examples how to prevent autoimmune diseases by regulatory T cells and restrict carcinoma growth by a tumor suppressor attest occurrence of co-regulation. In consequence, these glycans have potential to establish a new class of functional biomarkers, and mapping presence of their receptors is warranted. In this review, the cyto- and histochemical methods, which contribute to explore information storage and transfer within the sugar code, are described. This introduction to the toolbox is flanked by illustrating the application of each type of tool in histopathology, with focus on adhesion/growth-regulating galectins. Together with an introduction to fundamental principles of the sugar code, the review is designed to guide into this field and to inspire respective research efforts.
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Affiliation(s)
- Hans-Joachim Gabius
- Chair of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr 13, D-80539, Munich, Germany.
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André S, Wang GN, Gabius HJ, Murphy PV. Combining glycocluster synthesis with protein engineering: an approach to probe into the significance of linker length in a tandem-repeat-type lectin (galectin-4). Carbohydr Res 2014; 389:25-38. [PMID: 24698724 DOI: 10.1016/j.carres.2013.12.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 12/23/2013] [Accepted: 12/27/2013] [Indexed: 11/24/2022]
Abstract
Complementarity in lectin-glycan interactions in situ is assumed to involve spatial features in both the lectin and the glycan, giving a functional meaning to structural aspects of the lectin beyond its carbohydrate-binding site. In combining protein engineering with glycocluster synthesis, it is shown that the natural linker length of a tandem-repeat-type human lectin (galectin-4) determines binding properties in two binding assays (using surface-presented glycoprotein and cell surface assays). The types of glycocluster tested included bivalent lactosides based on tertiary amides of terephthalic, isophthalic, 2,6-naphthalic and oxalic acids as well as bivalent H(type 2) trisaccharides grafted on secondary/tertiary terephthalamides and two triazole-linker-containing cores. The presented data reveal a marked change in susceptibility to the test compounds when turning the tandem-repeat-type to a proto-type-like display. The testing of glycoclusters is suggested as a general strategy to help to delineate the significance of distinct structural features of lectins beyond their contact sites to the glycan.
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Affiliation(s)
- Sabine André
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Guan-Nan Wang
- School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Paul V Murphy
- School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland.
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Niu J, Zhu Y, Xie Y, Song L, Shi L, Lan J, Liu B, Li X, Huang Z. Solid-phase polyethylene glycol conjugation using hydrophobic interaction chromatography. J Chromatogr A 2013; 1327:66-72. [PMID: 24411087 DOI: 10.1016/j.chroma.2013.12.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 12/11/2013] [Accepted: 12/14/2013] [Indexed: 02/04/2023]
Abstract
PEGylation is a widely applied approach to improve the pharmacokinetic and pharmacodynamic properties of protein therapeutics. The current solution-phase PEGylation protocols often suffer from poor yield of homogeneously PEGylated bioactive products and hence fall short of being commercially attractive. To improve upon these techniques, here we developed a novel, solid-phase PEGylation methodology using a hydrophobic interaction chromatography (HIC) resin. Two variations of the HIC-based PEGylation are described that are tailored towards conjugation of proteins with hydrophobicity index above (lysozyme) and below (fibroblast growth factor 1, FGF-1) that of the mPEG-butyraldehyde (mPEG) chain used. In the case of lysozyme, the protein was first immobilized on the HIC, and the HIC-bound protein was then conjugated by passing over the column. In the case of FGF-1, the mPEG solution was first immobilized on the HIC, and the FGF-1 solution was then passed through the column. Circular dichroism (CD) spectroscopy demonstrated HIC-based PEGylation almost retained the secondary structures of proteins. Bioactivity assay showed that the recovery of activity of HIC-based PEGylated rhFGF-1 (i.e. 92%) was higher than that of liquid-phase PEGylated rhFGF-1 (i.e. 61%), while HIC-based PEGylated lysozyme showed the same activity recovery (i.e. 7%) as the liquid-phase PEGylated form. For specific proteins, the HIC-based solid-phase PEGylation maybe offer a more promising alternative than the current PEGylation methods and is expected to have a major impact in the area of protein-based therapeutics.
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Affiliation(s)
- Jianlou Niu
- School of Pharmacy, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
| | - Yanlin Zhu
- School of Pharmacy, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Yaoyao Xie
- School of Pharmacy, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Lintao Song
- School of Pharmacy, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Lu Shi
- School of Pharmacy, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Junjie Lan
- School of Pharmacy, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Bailin Liu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
| | - Xiaokun Li
- School of Pharmacy, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Zhifeng Huang
- School of Pharmacy, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China.
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