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Mayo KH. Heterologous Interactions with Galectins and Chemokines and Their Functional Consequences. Int J Mol Sci 2023; 24:14083. [PMID: 37762385 PMCID: PMC10531749 DOI: 10.3390/ijms241814083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Extra- and intra-cellular activity occurs under the direction of numerous inter-molecular interactions, and in any tissue or cell, molecules are densely packed, thus promoting those molecular interactions. Galectins and chemokines, the focus of this review, are small, protein effector molecules that mediate various cellular functions-in particular, cell adhesion and migration-as well as cell signaling/activation. In the past, researchers have reported that combinations of these (and other) effector molecules act separately, yet sometimes in concert, but nevertheless physically apart and via their individual cell receptors. This view that each effector molecule functions independently of the other limits our thinking about functional versatility and cooperation, and, in turn, ignores the prospect of physiologically important inter-molecular interactions, especially when both molecules are present or co-expressed in the same cellular environment. This review is focused on such protein-protein interactions with chemokines and galectins, the homo- and hetero-oligomeric structures that they can form, and the functional consequences of those paired interactions.
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Affiliation(s)
- Kevin H Mayo
- Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota Health Sciences Center, 6-155 Jackson Hall, Minneapolis, MN 55455, USA
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2
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Si Y, Cai J, Zhu J, Wang Y, Zhang F, Meng L, Huang J, Shi A. Linker remodels human Galectin-8 structure and regulates its hemagglutination and pro-apoptotic activity. Int J Biol Macromol 2023:125456. [PMID: 37331541 DOI: 10.1016/j.ijbiomac.2023.125456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/29/2023] [Accepted: 06/15/2023] [Indexed: 06/20/2023]
Abstract
Numerous articles have reported the involvement of linker in regulating bioactivity of tandem-repeat galectins. We hypothesize that linker interacts with N/C-CRDs to regulate the bioactivity of tandem-repeat galectins. To further investigate structural molecular mechanism of linker in regulating bioactivity of Gal-8, Gal-8LC was crystallized. Gal-8LC structure revealed formation of β-strand S1 by Asn174 to Pro176 from linker. S1-strand interacts with C-terminal of C-CRD via hydrogen bond interactions, mutually influencing their spatial structures. Our Gal-8 NL structure have demonstrated that linker region from Ser154 to Gln158 interacts with the N-terminal of Gal-8. Ser154 to Gln158 and Asn174 to Pro176 are likely involved in regulation of Gal-8's biological activity. Our preliminary experiment results revealed different hemagglutination and pro-apoptotic activities between full-length and truncated forms of Gal-8, indicating involvement of linker in regulating these activities. We generated several mutant and truncated forms of Gal-8 (Gal-8 M3, Gal-8 M5, Gal-8TL1, Gal-8TL2, Gal-8LC-M3 and Gal-8_177-317). Ser154 to Gln158 and Asn174 to Pro176 were found to be involved in regulating hemagglutination and pro-apoptotic activities of Gal-8. Ser154 to Gln158 and Asn174 to Pro176 are critical functional regulatory regions within linker. Our study holds significant importance in providing a profound understanding of how linker regulates biological activity of Gal-8.
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Affiliation(s)
- Yunlong Si
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, China.
| | - Jun Cai
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, China
| | - Jiahui Zhu
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, China
| | - Yuchen Wang
- Xuzhou Maternity and Child Health Care Hospital, Xuzhou 221009, China
| | - Fali Zhang
- Xuzhou Maternity and Child Health Care Hospital, Xuzhou 221009, China
| | - Li Meng
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, China
| | - Jing Huang
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, China
| | - Anqi Shi
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, China
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3
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Vander Zanden CM, Majewski J, Weissbarth Y, Browne DF, Watkins EB, Gabius HJ. Structure of Galectin-3 bound to a model membrane containing ganglioside GM1. Biophys J 2022:S0006-3495(22)00678-6. [PMID: 35986516 DOI: 10.1016/j.bpj.2022.08.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/05/2022] [Accepted: 08/15/2022] [Indexed: 11/02/2022] Open
Abstract
Galectin-3 (Gal-3) is a β-galactosidase-binding protein involved in various biological processes, including neuronal growth and adhesion. The pairing of Gal-3 with ganglioside GM1's pentasaccharide chain at the outer leaflet of the plasma membrane, which triggers downstream cell-signaling cascades, seems to be involved in these processes. A crucial feature of Gal-3 is its ability to form oligomers and supramolecular assemblies that connect various carbohydrate-decorated molecules. Although we know the atomistic structure of Gal-3 bound to small carbohydrate ligands, it remains unclear how Gal-3 binds GM1 in a membrane. Furthermore, the influence of this interaction on Gal-3's structure and oligomeric assembly has to be elucidated. In this study, we used X-ray reflectivity (XR) from a model membrane to determine the structure and surface coverage of Gal-3 bound to a membrane containing GM1. We observed that the carbohydrate recognition domain interacts with GM1's pentasaccharide, while the N-terminal domain is pointed away from the membrane, likely to facilitate protein-protein interactions. In a membrane containing 20 mol % GM1, Gal-3 covered ∼50% of the membrane surface with one Gal-3 molecule bound per 2130 Å2. We used molecular dynamics simulations and Voronoi tessellation algorithms to build an atomistic model of membrane-bound Gal-3, which is supported by the XR results. Overall, this work provides structural information describing how Gal-3 can bind GM1's pentasaccharide chain, a prerequisite for triggering regulatory processes in neuronal growth and adhesion.
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Affiliation(s)
- Crystal M Vander Zanden
- Department of Chemistry and Biochemistry, University of Colorado at Colorado Springs, Colorado Springs, Colorado.
| | - Jaroslaw Majewski
- Division of Molecular and Cellular Biology, National Science Foundation, Alexandria, Virginia; Department of Chemical and Biological Engineering and Center for Biomedical Engineering, University of New Mexico, Albuquerque, New Mexico; Theoretical Biology & Biophysics, Los Alamos National Laboratory, Los Alamos, New Mexico
| | - Yvonne Weissbarth
- Department of Chemistry and Biochemistry, University of Colorado at Colorado Springs, Colorado Springs, Colorado
| | - Danielle F Browne
- Department of Chemistry and Biochemistry, University of Colorado at Colorado Springs, Colorado Springs, Colorado
| | - Erik B Watkins
- MPA-11: Materials Synthesis and Integrated Devices, Los Alamos National Laboratory, Los Alamos, New Mexico
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Planegg, Germany
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4
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Tobola F, Wiltschi B. One, two, many: Strategies to alter the number of carbohydrate binding sites of lectins. Biotechnol Adv 2022; 60:108020. [PMID: 35868512 DOI: 10.1016/j.biotechadv.2022.108020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/23/2022] [Accepted: 07/15/2022] [Indexed: 11/29/2022]
Abstract
Carbohydrates are more than an energy-storage. They are ubiquitously found on cells and most proteins, where they encode biological information. Lectins bind these carbohydrates and are essential for translating the encoded information into biological functions and processes. Hundreds of lectins are known, and they are found in all domains of life. For half a century, researchers have been preparing variants of lectins in which the binding sites are varied. In this way, the traits of the lectins such as the affinity, avidity and specificity towards their ligands as well as their biological efficacy were changed. These efforts helped to unravel the biological importance of lectins and resulted in improved variants for biotechnological exploitation and potential medical applications. This review gives an overview on the methods for the preparation of artificial lectins and complexes thereof and how reducing or increasing the number of binding sites affects their function.
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Affiliation(s)
- Felix Tobola
- acib - Austrian Centre of Industrial Biotechnology, Petersgasse 14, 8010 Graz, Austria; Institute of Molecular Biotechnology, Graz University of Technology, Petersgasse 14, 8010 Graz, Austria.
| | - Birgit Wiltschi
- acib - Austrian Centre of Industrial Biotechnology, Petersgasse 14, 8010 Graz, Austria; Institute of Molecular Biotechnology, Graz University of Technology, Petersgasse 14, 8010 Graz, Austria; Institute of Bioprocess Science and Engineering, Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, Muthgasse 18, 1190 Vienna, Austria.
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Dings RPM, Kumar N, Mikkelson S, Gabius HJ, Mayo KH. Simulating cellular galectin networks by mixing galectins in vitro reveals synergistic activity. Biochem Biophys Rep 2021; 28:101116. [PMID: 34485713 PMCID: PMC8408429 DOI: 10.1016/j.bbrep.2021.101116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/09/2021] [Accepted: 08/23/2021] [Indexed: 12/31/2022] Open
Abstract
Background Even though members of the family of adhesion/growth-regulatory galectins are increasingly detected to be co-expressed, they are still being routinely tested separately. The recent discovery of heterodimer formation among galectins-1, -3, and -7 in mixtures prompts further study of their functional activities in mixtures. Methods Cell agglutination, galectin binding to cells, as well as effects on cell proliferation, onset of apoptosis and migration were determined in assays using various cell types and mixtures of galectins-1, -3, and -7. Results Evidence for a more than additive increases of experimental parameters was consistently obtained. Conclusion Testing galectins in mixtures simulates the situation of co-expression in situ and reveals unsuspected over-additive activities. This new insight is relevant for analyzing galectin functionality in (patho)physiological conditions. Galectins-1, -3, and -7 form heterodimers in solution. Mixtures of galectins simulates galectin co-expression in situ. Mixtures display synergistic activities in vitro. Cell agglutination, apoptosis, proliferation, migration affected. Findings are relevant for galectin functionality in vivo.
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Affiliation(s)
- Ruud P M Dings
- Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Nigam Kumar
- Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Sterling Mikkelson
- Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University, Veterinarstr. 13, Munich, 80539, Germany
| | - Kevin H Mayo
- Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota, Minneapolis, MN, 55455, USA
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Imitating evolution's tinkering by protein engineering reveals extension of human galectin-7 activity. Histochem Cell Biol 2021; 156:253-272. [PMID: 34152508 PMCID: PMC8460509 DOI: 10.1007/s00418-021-02004-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2021] [Indexed: 12/23/2022]
Abstract
Wild-type lectins have distinct types of modular design. As a step to explain the physiological importance of their special status, hypothesis-driven protein engineering is used to generate variants. Concerning adhesion/growth-regulatory galectins, non-covalently associated homodimers are commonly encountered in vertebrates. The homodimeric galectin-7 (Gal-7) is a multifunctional context-dependent modulator. Since the possibility of conversion from the homodimer to hybrids with other galectin domains, i.e. from Gal-1 and Gal-3, has recently been discovered, we designed Gal-7-based constructs, i.e. stable (covalently linked) homo- and heterodimers. They were produced and purified by affinity chromatography, and the sugar-binding activity of each lectin unit proven by calorimetry. Inspection of profiles of binding of labeled galectins to an array-like platform with various cell types, i.e. sections of murine epididymis and jejunum, and impact on neuroblastoma cell proliferation revealed no major difference between natural and artificial (stable) homodimers. When analyzing heterodimers, acquisition of altered properties was seen. Remarkably, binding properties and activity as effector can depend on the order of arrangement of lectin domains (from N- to C-termini) and on the linker length. After dissociation of the homodimer, the Gal-7 domain can build new functionally active hybrids with other partners. This study provides a clear direction for research on defining the full range of Gal-7 functionality and offers the perspective of testing applications for engineered heterodimers.
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Eckardt V, Miller MC, Blanchet X, Duan R, Leberzammer J, Duchene J, Soehnlein O, Megens RT, Ludwig AK, Dregni A, Faussner A, Wichapong K, Ippel H, Dijkgraaf I, Kaltner H, Döring Y, Bidzhekov K, Hackeng TM, Weber C, Gabius HJ, von Hundelshausen P, Mayo KH. Chemokines and galectins form heterodimers to modulate inflammation. EMBO Rep 2020; 21:e47852. [PMID: 32080959 PMCID: PMC7132340 DOI: 10.15252/embr.201947852] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 01/16/2020] [Accepted: 01/20/2020] [Indexed: 01/14/2023] Open
Abstract
Chemokines and galectins are simultaneously upregulated and mediate leukocyte recruitment during inflammation. Until now, these effector molecules have been considered to function independently. Here, we tested the hypothesis that they form molecular hybrids. By systematically screening chemokines for their ability to bind galectin‐1 and galectin‐3, we identified several interacting pairs, such as CXCL12 and galectin‐3. Based on NMR and MD studies of the CXCL12/galectin‐3 heterodimer, we identified contact sites between CXCL12 β‐strand 1 and Gal‐3 F‐face residues. Mutagenesis of galectin‐3 residues involved in heterodimer formation resulted in reduced binding to CXCL12, enabling testing of functional activity comparatively. Galectin‐3, but not its mutants, inhibited CXCL12‐induced chemotaxis of leukocytes and their recruitment into the mouse peritoneum. Moreover, galectin‐3 attenuated CXCL12‐stimulated signaling via its receptor CXCR4 in a ternary complex with the chemokine and receptor, consistent with our structural model. This first report of heterodimerization between chemokines and galectins reveals a new type of interaction between inflammatory mediators that can underlie a novel immunoregulatory mechanism in inflammation. Thus, further exploration of the chemokine/galectin interactome is warranted.
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Affiliation(s)
- Veit Eckardt
- Faculty of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Michelle C Miller
- Department of Biochemistry, Molecular Biology & Biophysics, Health Sciences Center, University of Minnesota, Minneapolis, MN, USA
| | - Xavier Blanchet
- Faculty of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Rundan Duan
- Faculty of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Julian Leberzammer
- Faculty of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Johan Duchene
- Faculty of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Oliver Soehnlein
- Faculty of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Remco Ta Megens
- Faculty of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Anna-Kristin Ludwig
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University, Munich, Germany
| | - Aurelio Dregni
- Department of Biochemistry, Molecular Biology & Biophysics, Health Sciences Center, University of Minnesota, Minneapolis, MN, USA
| | - Alexander Faussner
- Faculty of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Kanin Wichapong
- Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Hans Ippel
- Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Ingrid Dijkgraaf
- Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Herbert Kaltner
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University, Munich, Germany
| | - Yvonne Döring
- Faculty of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Kiril Bidzhekov
- Faculty of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Tilman M Hackeng
- Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Christian Weber
- Faculty of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany.,Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands.,German Centre for Cardiovascular Research, partner site Munich Heart Alliance, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Hans-Joachim Gabius
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University, Munich, Germany
| | - Philipp von Hundelshausen
- Faculty of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany.,German Centre for Cardiovascular Research, partner site Munich Heart Alliance, Munich, Germany
| | - Kevin H Mayo
- Department of Biochemistry, Molecular Biology & Biophysics, Health Sciences Center, University of Minnesota, Minneapolis, MN, USA
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8
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Modenutti CP, Capurro JIB, Di Lella S, Martí MA. The Structural Biology of Galectin-Ligand Recognition: Current Advances in Modeling Tools, Protein Engineering, and Inhibitor Design. Front Chem 2019; 7:823. [PMID: 31850312 PMCID: PMC6902271 DOI: 10.3389/fchem.2019.00823] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 11/12/2019] [Indexed: 12/25/2022] Open
Abstract
Galectins (formerly known as “S-type lectins”) are a subfamily of soluble proteins that typically bind β-galactoside carbohydrates with high specificity. They are present in many forms of life, from nematodes and fungi to animals, where they perform a wide range of functions. Particularly in humans, different types of galectins have been described differing not only in their tissue expression but also in their cellular location, oligomerization, fold architecture and carbohydrate-binding affinity. This distinct yet sometimes overlapping distributions and physicochemical attributes make them responsible for a wide variety of both intra- and extracellular functions, including tremendous importance in immunity and disease. In this review, we aim to provide a general description of galectins most important structural features, with a special focus on the molecular determinants of their carbohydrate-recognition ability. For that purpose, we structurally compare the human galectins, in light of recent mutagenesis studies and novel X-ray structures. We also offer a detailed description on how to use the solvent structure surrounding the protein as a tool to get better predictions of galectin-carbohydrate complexes, with a potential application to the rational design of glycomimetic inhibitory compounds. Finally, using Gal-1 and Gal-3 as paramount examples, we review a series of recent advances in the development of engineered galectins and galectin inhibitors, aiming to dissect the structure-activity relationship through the description of their interaction at the molecular level.
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Affiliation(s)
- Carlos P Modenutti
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET, Buenos Aires, Argentina
| | - Juan I Blanco Capurro
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET, Buenos Aires, Argentina
| | - Santiago Di Lella
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET, Buenos Aires, Argentina
| | - Marcelo A Martí
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET, Buenos Aires, Argentina
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9
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Kutzner TJ, Gabba A, FitzGerald FG, Shilova NV, García Caballero G, Ludwig AK, Manning JC, Knospe C, Kaltner H, Sinowatz F, Murphy PV, Cudic M, Bovin NV, Gabius HJ. How altering the modular architecture affects aspects of lectin activity: case study on human galectin-1. Glycobiology 2019; 29:593-607. [PMID: 31091305 PMCID: PMC6639544 DOI: 10.1093/glycob/cwz034] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/26/2019] [Accepted: 05/11/2019] [Indexed: 12/13/2022] Open
Abstract
Discoveries on involvement of glycan-protein recognition in many (patho)physiological processes are directing attention to exploring the significance of a fundamental structural aspect of sugar receptors beyond glycan specificity, i.e., occurrence of distinct types of modular architecture. In order to trace clues for defining design-functionality relationships in human lectins, a lectin's structural unit has been used as source material for engineering custom-made variants of the wild-type protein. Their availability facilitates comparative analysis toward the stated aim. With adhesion/growth-regulatory human galectin-1 as example, the strategy of evaluating how changes of its design (here, from the homodimer of non-covalently associated domains to (i) linker-connected di- and tetramers and (ii) a galectin-3-like protein) affect activity is illustrated by using three assay systems of increasing degree of glycan complexity. Whereas calorimetry with two cognate disaccharides and array testing with 647 (glyco)compounds disclosed no major changes, galectin histochemical staining profiles of tissue sections that present natural glycome complexity revealed differences between wild-type and linker-connected homo-oligomers as well as between the galectin-3-like variant and wild-type galectin-3 for cell-type positivity, level of intensity at the same site and susceptibility for inhibition by a bivalent glycocompound. These results underscore the strength of the documented approach. Moreover, they give direction to proceed to (i) extending its application to other members of this lectin family, especially galectin-3 and (ii) then analyzing impact of architectural alterations on cell surface lattice formation and ensuing biosignaling systematically, considering the variants' potential for translational medicine.
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Affiliation(s)
- Tanja J Kutzner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Adele Gabba
- School of Chemistry, National University of Ireland, Galway, Ireland
| | - Forrest G FitzGerald
- Department of Chemistry and Biochemistry, Florida Atlantic University, Boca Raton FL, USA
| | - Nadezhda V Shilova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Laboratory of Carbohydrates, Russian Academy of Sciences, Moscow, Russia
| | - Gabriel García Caballero
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Anna-Kristin Ludwig
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Joachim C Manning
- 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
| | - Fred Sinowatz
- Institute of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Paul V Murphy
- School of Chemistry, National University of Ireland, Galway, Ireland
| | - Mare Cudic
- Department of Chemistry and Biochemistry, Florida Atlantic University, Boca Raton FL, USA
| | - Nicolai V Bovin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Laboratory of Carbohydrates, Russian Academy of Sciences, Moscow, Russia
- Centre for Kode Technology Innovation, School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, Auckland, New Zealand
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
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10
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Ludwig AK, Michalak M, Xiao Q, Gilles U, Medrano FJ, Ma H, FitzGerald FG, Hasley WD, Melendez-Davila A, Liu M, Rahimi K, Kostina NY, Rodriguez-Emmenegger C, Möller M, Lindner I, Kaltner H, Cudic M, Reusch D, Kopitz J, Romero A, Oscarson S, Klein ML, Gabius HJ, Percec V. Design-functionality relationships for adhesion/growth-regulatory galectins. Proc Natl Acad Sci U S A 2019; 116:2837-2842. [PMID: 30718416 PMCID: PMC6386680 DOI: 10.1073/pnas.1813515116] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Glycan-lectin recognition is assumed to elicit its broad range of (patho)physiological functions via a combination of specific contact formation with generation of complexes of distinct signal-triggering topology on biomembranes. Faced with the challenge to understand why evolution has led to three particular modes of modular architecture for adhesion/growth-regulatory galectins in vertebrates, here we introduce protein engineering to enable design switches. The impact of changes is measured in assays on cell growth and on bridging fully synthetic nanovesicles (glycodendrimersomes) with a chemically programmable surface. Using the example of homodimeric galectin-1 and monomeric galectin-3, the mutual design conversion caused qualitative differences, i.e., from bridging effector to antagonist/from antagonist to growth inhibitor and vice versa. In addition to attaining proof-of-principle evidence for the hypothesis that chimera-type galectin-3 design makes functional antagonism possible, we underscore the value of versatile surface programming with a derivative of the pan-galectin ligand lactose. Aggregation assays with N,N'-diacetyllactosamine establishing a parasite-like surface signature revealed marked selectivity among the family of galectins and bridging potency of homodimers. These findings provide fundamental insights into design-functionality relationships of galectins. Moreover, our strategy generates the tools to identify biofunctional lattice formation on biomembranes and galectin-reagents with therapeutic potential.
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Affiliation(s)
- Anna-Kristin Ludwig
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, 80539 Munich, Germany
| | - Malwina Michalak
- Institute of Pathology, Department of Applied Tumor Pathology, Faculty of Medicine, Ruprecht-Karls-University Heidelberg, 69120 Heidelberg, Germany
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323
| | - Ulrich Gilles
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, 82377 Penzberg, Germany
| | - Francisco J Medrano
- Structural and Chemical Biology, Centro Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Hanyue Ma
- Centre for Synthesis and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Forrest G FitzGerald
- Department of Chemistry and Biochemistry, Florida Atlantic University, Boca Raton, FL 33431
| | - William D Hasley
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323
| | - Adriel Melendez-Davila
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323
| | - Matthew Liu
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323
| | - Khosrow Rahimi
- Deutsches Wollforschungsinstitut-Leibniz Institute for Interactive Materials, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, 52074 Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen, 52074 Aachen
| | - Nina Yu Kostina
- Deutsches Wollforschungsinstitut-Leibniz Institute for Interactive Materials, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, 52074 Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen, 52074 Aachen
| | - Cesar Rodriguez-Emmenegger
- Deutsches Wollforschungsinstitut-Leibniz Institute for Interactive Materials, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, 52074 Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen, 52074 Aachen
| | - Martin Möller
- Deutsches Wollforschungsinstitut-Leibniz Institute for Interactive Materials, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, 52074 Aachen, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen, 52074 Aachen
| | - Ingo Lindner
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, 82377 Penzberg, Germany
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, 80539 Munich, Germany
| | - Mare Cudic
- Department of Chemistry and Biochemistry, Florida Atlantic University, Boca Raton, FL 33431
| | - Dietmar Reusch
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, 82377 Penzberg, Germany
| | - Jürgen Kopitz
- Institute of Pathology, Department of Applied Tumor Pathology, Faculty of Medicine, Ruprecht-Karls-University Heidelberg, 69120 Heidelberg, Germany
| | - Antonio Romero
- Structural and Chemical Biology, Centro Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Stefan Oscarson
- Centre for Synthesis and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Michael L Klein
- Institute of Computational Molecular Science, Temple University, Philadelphia, PA 19122
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, 80539 Munich, Germany;
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323;
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11
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Kaltner H, García Caballero G, Ludwig AK, Manning JC, Gabius HJ. From glycophenotyping by (plant) lectin histochemistry to defining functionality of glycans by pairing with endogenous lectins. Histochem Cell Biol 2018; 149:547-568. [DOI: 10.1007/s00418-018-1676-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2018] [Indexed: 01/06/2023]
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12
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Targeting galectin-1 inhibits pancreatic cancer progression by modulating tumor-stroma crosstalk. Proc Natl Acad Sci U S A 2018; 115:E3769-E3778. [PMID: 29615514 DOI: 10.1073/pnas.1722434115] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDA) remains one of the most lethal tumor types, with extremely low survival rates due to late diagnosis and resistance to standard therapies. A more comprehensive understanding of the complexity of PDA pathobiology, and especially of the role of the tumor microenvironment in disease progression, should pave the way for therapies to improve patient response rates. In this study, we identify galectin-1 (Gal1), a glycan-binding protein that is highly overexpressed in PDA stroma, as a major driver of pancreatic cancer progression. Genetic deletion of Gal1 in a Kras-driven mouse model of PDA (Ela-KrasG12Vp53-/- ) results in a significant increase in survival through mechanisms involving decreased stroma activation, attenuated vascularization, and enhanced T cell infiltration leading to diminished metastasis rates. In a human setting, human pancreatic stellate cells (HPSCs) promote cancer proliferation, migration, and invasion via Gal1-driven pathways. Moreover, in vivo orthotopic coinjection of pancreatic tumor cells with Gal1-depleted HPSCs leads to impaired tumor formation and metastasis in mice. Gene-expression analyses of pancreatic tumor cells exposed to Gal1 reveal modulation of multiple regulatory pathways involved in tumor progression. Thus, Gal1 hierarchically regulates different events implicated in PDA biology including tumor cell proliferation, invasion, angiogenesis, inflammation, and metastasis, highlighting the broad therapeutic potential of Gal1-specific inhibitors, either alone or in combination with other therapeutic modalities.
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13
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Adhesion/growth-regulatory galectins tested in combination: evidence for formation of hybrids as heterodimers. Biochem J 2018; 475:1003-1018. [PMID: 29321242 DOI: 10.1042/bcj20170658] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 12/22/2017] [Accepted: 01/07/2018] [Indexed: 12/14/2022]
Abstract
The delineation of the physiological significance of protein (lectin)-glycan recognition and the structural analysis of individual lectins have directed our attention to studying them in combination. In this report, we tested the hypothesis of hybrid formation by using binary mixtures of homodimeric galectin-1 and -7 as well as a proteolytically truncated version of chimera-type galectin-3. Initial supportive evidence is provided by affinity chromatography using resin-presented galectin-7. Intriguingly, the extent of cell binding by cross-linking of surface counter-receptor increased significantly for monomeric galectin-3 form by the presence of galectin-1 or -7. Pulsed-field gradient NMR (nuclear magnetic resonance) diffusion measurements on these galectin mixtures indicated formation of heterodimers as opposed to larger oligomers. 15N-1H heteronuclear single quantum coherence NMR spectroscopy and molecular dynamics simulations allowed us to delineate how different galectins interact in the heterodimer. The possibility of domain exchange between galectins introduces a new concept for understanding the spectrum of their functionality, particularly when these effector molecules are spatially and temporally co-expressed as found in vivo.
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14
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Kopitz J, Xiao Q, Ludwig A, Romero A, Michalak M, Sherman SE, Zhou X, Dazen C, Vértesy S, Kaltner H, Klein ML, Gabius H, Percec V. Reaction of a Programmable Glycan Presentation of Glycodendrimersomes and Cells with Engineered Human Lectins To Show the Sugar Functionality of the Cell Surface. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jürgen Kopitz
- Institute of Pathology, Department of Applied Tumor Biology Faculty of Medicine Ruprecht-Karls-University Heidelberg Im Neuenheimer Feld 224 69120 Heidelberg Germany
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Anna‐Kristin Ludwig
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Antonio Romero
- Centro de Investigaciones Biológicas CSIC Ramiro de Maeztu, 9 28040 Madrid Spain
| | - Malwina Michalak
- Institute of Pathology, Department of Applied Tumor Biology Faculty of Medicine Ruprecht-Karls-University Heidelberg Im Neuenheimer Feld 224 69120 Heidelberg Germany
| | - Samuel E. Sherman
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Xuhao Zhou
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Cody Dazen
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Sabine Vértesy
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Michael L. Klein
- Institute for Computational Molecular Science Temple University Philadelphia Pennsylvania 19122 USA
| | - Hans‐Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
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15
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Kopitz J, Xiao Q, Ludwig A, Romero A, Michalak M, Sherman SE, Zhou X, Dazen C, Vértesy S, Kaltner H, Klein ML, Gabius H, Percec V. Reaction of a Programmable Glycan Presentation of Glycodendrimersomes and Cells with Engineered Human Lectins To Show the Sugar Functionality of the Cell Surface. Angew Chem Int Ed Engl 2017; 56:14677-14681. [DOI: 10.1002/anie.201708237] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Indexed: 01/17/2023]
Affiliation(s)
- Jürgen Kopitz
- Institute of Pathology, Department of Applied Tumor Biology Faculty of Medicine Ruprecht-Karls-University Heidelberg Im Neuenheimer Feld 224 69120 Heidelberg Germany
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Anna‐Kristin Ludwig
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Antonio Romero
- Centro de Investigaciones Biológicas CSIC Ramiro de Maeztu, 9 28040 Madrid Spain
| | - Malwina Michalak
- Institute of Pathology, Department of Applied Tumor Biology Faculty of Medicine Ruprecht-Karls-University Heidelberg Im Neuenheimer Feld 224 69120 Heidelberg Germany
| | - Samuel E. Sherman
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Xuhao Zhou
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Cody Dazen
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
| | - Sabine Vértesy
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Michael L. Klein
- Institute for Computational Molecular Science Temple University Philadelphia Pennsylvania 19122 USA
| | - Hans‐Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine Ludwig-Maximilians-University Munich Veterinaerstr. 13 80539 Munich Germany
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 USA
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16
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Studying the Structural Significance of Galectin Design by Playing a Modular Puzzle: Homodimer Generation from Human Tandem-Repeat-Type (Heterodimeric) Galectin-8 by Domain Shuffling. Molecules 2017; 22:molecules22091572. [PMID: 28925965 PMCID: PMC6151538 DOI: 10.3390/molecules22091572] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 09/17/2017] [Indexed: 01/10/2023] Open
Abstract
Tissue lectins are emerging (patho)physiological effectors with broad significance. The capacity of adhesion/growth-regulatory galectins to form functional complexes with distinct cellular glycoconjugates is based on molecular selection of matching partners. Engineering of variants by changing the topological display of carbohydrate recognition domains (CRDs) provides tools to understand the inherent specificity of the functional pairing. We here illustrate its practical implementation in the case of human tandem-repeat-type galectin-8 (Gal-8). It is termed Gal-8 (NC) due to presence of two different CRDs at the N- and C-terminal positions. Gal-8N exhibits exceptionally high affinity for 3'-sialylated/sulfated β-galactosides. This protein is turned into a new homodimer, i.e., Gal-8 (NN), by engineering. The product maintained activity for lactose-inhibitable binding of glycans and glycoproteins. Preferential association with 3'-sialylated/sulfated (and 6-sulfated) β-galactosides was seen by glycan-array analysis when compared to the wild-type protein, which also strongly bound to ABH-type epitopes. Agglutination of erythrocytes documented functional bivalency. This result substantiates the potential for comparative functional studies between the variant and natural Gal-8 (NC)/Gal-8N.
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17
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Bivalent O -glycoside mimetics with S /disulfide/ Se substitutions and aromatic core: Synthesis, molecular modeling and inhibitory activity on biomedically relevant lectins in assays of increasing physiological relevance. Bioorg Med Chem 2017; 25:3158-3170. [DOI: 10.1016/j.bmc.2017.04.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 03/30/2017] [Accepted: 04/03/2017] [Indexed: 12/13/2022]
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18
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Sherman SE, Xiao Q, Percec V. Mimicking Complex Biological Membranes and Their Programmable Glycan Ligands with Dendrimersomes and Glycodendrimersomes. Chem Rev 2017; 117:6538-6631. [PMID: 28417638 DOI: 10.1021/acs.chemrev.7b00097] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Synthetic vesicles have been assembled and coassembled from phospholipids, their modified versions, and other single amphiphiles into liposomes, and from block copolymers into polymersomes. Their time-consuming synthesis and preparation as stable, monodisperse, and biocompatible liposomes and polymersomes called for the elaboration of new synthetic methodologies. Amphiphilic Janus dendrimers (JDs) and glycodendrimers (JGDs) represent the most recent self-assembling amphiphiles capable of forming monodisperse, stable, and multifunctional unilamellar and multilamellar onion-like vesicles denoted dendrimersomes (DSs) and glycodendrimersomes (GDSs), dendrimercubosomes (DCs), glycodendrimercubosomes (GDCs), and other complex architectures. Amphiphilic JDs consist of hydrophobic dendrons connected to hydrophilic dendrons and can be thought of as monodisperse oligomers of a single amphiphile. They can be functionalized with a variety of molecules such as dyes, and, in the case of JGDs, with carbohydrates. Their iterative modular synthesis provides efficient access to sequence control at the molecular level, resulting in topologies with specific epitope sequence and density. DSs, GDSs, and other architectures from JDs and JGDs serve as powerful tools for mimicking biological membranes and for biomedical applications such as targeted drug and gene delivery and theranostics. This Review covers all aspects of the synthesis of JDs and JGDs and their biological activity and applications after assembly in aqueous media.
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Affiliation(s)
- Samuel E Sherman
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
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19
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Teaming up synthetic chemistry and histochemistry for activity screening in galectin-directed inhibitor design. Histochem Cell Biol 2016; 147:285-301. [PMID: 28013366 DOI: 10.1007/s00418-016-1525-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2016] [Indexed: 01/08/2023]
Abstract
A hallmark of endogenous lectins is their ability to select a few distinct glycoconjugates as counterreceptors for functional pairing from the natural abundance of cellular glycoproteins and glycolipids. As a consequence, assays to assess inhibition of lectin binding should necessarily come as close as possible to the physiological situation, to characterize an impact of a synthetic compound on biorelevant binding with pharmaceutical perspective. We here introduce in a proof-of-principle manner work with sections of paraffin-embedded tissue (jejunum, epididymis) and labeled adhesion/growth-regulatory galectins, harboring one (galectin-1 and galectin-3) or two (galectin-8) types of lectin domain. Six pairs of synthetic lactosides from tailoring of the headgroup (3'-O-sulfation) and the aglycone (β-methyl to aromatic S- and O-linked extensions) as well as three bi- to tetravalent glycoclusters were used as test compounds. Varying extents of reduction in staining intensity by synthetic compounds relative to unsubstituted/free lactose proved the applicability and sensitivity of the method. Flanking cytofluorimetric assays on lectin binding to native cells gave similar grading, excluding a major impact of tissue fixation. The experiments revealed cell/tissue binding of galectin-8 preferentially via one domain, depending on the cell type so that the effect of an inhibitor in a certain context cannot be extrapolated to other cells/tissues. Moreover, the work with the other galectins attests that this assay enables comprehensive analysis of the galectin network in serial tissue sections to determine overlaps and regional differences in inhibitory profiles.
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20
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Kaltner H, Toegel S, Caballero GG, Manning JC, Ledeen RW, Gabius HJ. Galectins: their network and roles in immunity/tumor growth control. Histochem Cell Biol 2016; 147:239-256. [DOI: 10.1007/s00418-016-1522-8] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2016] [Indexed: 12/23/2022]
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21
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Artigas G, Hinou H, Garcia-Martin F, Gabius HJ, Nishimura SI. Synthetic Mucin-Like Glycopeptides as Versatile Tools to Measure Effects of Glycan Structure/Density/Position on the Interaction with Adhesion/Growth-Regulatory Galectins in Arrays. Chem Asian J 2016; 12:159-167. [DOI: 10.1002/asia.201601420] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/21/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Gerard Artigas
- Faculty of Advanced Life Science; Hokkaido University, N21W11, Kita-ku; Sapporo 001-0021 Japan
| | - Hiroshi Hinou
- Faculty of Advanced Life Science; Hokkaido University, N21W11, Kita-ku; Sapporo 001-0021 Japan
- Medicinal Chemistry Pharmaceuticals, Co., Ltd. N9W15, Chuo-ku; Sapporo 060-0009 Japan
| | - Fayna Garcia-Martin
- Faculty of Advanced Life Science; Hokkaido University, N21W11, Kita-ku; Sapporo 001-0021 Japan
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry; Faculty of Veterinary Medicine; Ludwig-Maximilians-University Munich; Veterinärstr. 13 80539 München Germany
| | - Shin-Ichiro Nishimura
- Faculty of Advanced Life Science; Hokkaido University, N21W11, Kita-ku; Sapporo 001-0021 Japan
- Medicinal Chemistry Pharmaceuticals, Co., Ltd. N9W15, Chuo-ku; Sapporo 060-0009 Japan
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22
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García Caballero G, Flores-Ibarra A, Michalak M, Khasbiullina N, Bovin NV, André S, Manning JC, Vértesy S, Ruiz FM, Kaltner H, Kopitz J, Romero A, Gabius HJ. Galectin-related protein: An integral member of the network of chicken galectins 1. From strong sequence conservation of the gene confined to vertebrates to biochemical characteristics of the chicken protein and its crystal structure. Biochim Biophys Acta Gen Subj 2016; 1860:2285-97. [PMID: 27268118 PMCID: PMC7127388 DOI: 10.1016/j.bbagen.2016.06.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 05/11/2016] [Accepted: 06/02/2016] [Indexed: 11/21/2022]
Affiliation(s)
- Gabriel García Caballero
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Andrea Flores-Ibarra
- Chemical and Physical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Malwina Michalak
- Department of Applied Tumor Biology, Institute of Pathology, Medical School of the Ruprecht-Karls-University, Im Neuenheimer Feld 224, 69120 Heidelberg, Germany
| | - Nailya Khasbiullina
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow, Russia
| | - Nicolai V Bovin
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow, Russia
| | - Sabine André
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Joachim C Manning
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Sabine Vértesy
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Federico M Ruiz
- Chemical and Physical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Jürgen Kopitz
- Department of Applied Tumor Biology, Institute of Pathology, Medical School of the Ruprecht-Karls-University, Im Neuenheimer Feld 224, 69120 Heidelberg, Germany
| | - Antonio Romero
- Chemical and Physical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany.
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23
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García Caballero G, Kaltner H, Michalak M, Shilova N, Yegres M, André S, Ludwig AK, Manning JC, Schmidt S, Schnölzer M, Bovin NV, Reusch D, Kopitz J, Gabius HJ. Chicken GRIFIN: A homodimeric member of the galectin network with canonical properties and a unique expression profile. Biochimie 2016; 128-129:34-47. [PMID: 27296808 DOI: 10.1016/j.biochi.2016.06.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 06/03/2016] [Indexed: 12/12/2022]
Abstract
Occurrence of the adhesion/growth-regulatory galectins as family sets the challenge to achieve a complete network analysis. Along this route taken for a well-suited model organism (chicken), we fill the remaining gap to characterize its seventh member known from rat as galectin-related inter-fiber protein (GRIFIN) in the lens. Its single-copy gene is common to vertebrates, with one or more deviations from the so-called signature sequence for ligand (lactose) contact. The chicken protein is a homodimeric agglutinin with capacity to bind β-galactosides, especially the histo-blood group B tetrasaccharide, shown by solid-phase/cell assays and a glycan microarray. Mass spectrometric identification of two lactose-binding peptides after tryptic on-bead fragmentation suggests an interaction at the canonical region despite a sequence change from Arg to Val at the site, which impairs reactivity of human galectin-1. RT-PCR and Western blot analyses of specimen from adult chicken organs reveal restriction of expression to the lens, here immunohistochemically throughout its main body. This report sets the stage for detailed structure-activity studies to define factors relevant for affinity beyond the signature sequence and to perform the first complete network analysis of the galectin family in developing and adult organs of a vertebrate.
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Affiliation(s)
- 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
| | - Malwina Michalak
- Department of Applied Tumor Biology, Institute of Pathology, Medical School of the Ruprecht-Karls-University, Im Neuenheimer Feld 224, 69120 Heidelberg, Germany
| | - Nadezhda Shilova
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya, Moscow, Russia
| | - Michelle Yegres
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, 82377 Penzberg, Germany
| | - Sabine André
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Anna-Kristin Ludwig
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Joachim C Manning
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Sebastian Schmidt
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Martina Schnölzer
- Genomics and Proteomics Core Facility, German Cancer Research Center, 69120 Heidelberg, Germany
| | - Nicolai V Bovin
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya, Moscow, Russia
| | - Dietmar Reusch
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH, 82377 Penzberg, Germany
| | - Jürgen Kopitz
- Department of Applied Tumor Biology, Institute of Pathology, Medical School of the Ruprecht-Karls-University, Im Neuenheimer Feld 224, 69120 Heidelberg, 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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24
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Gabius HJ, Manning JC, Kopitz J, André S, Kaltner H. Sweet complementarity: the functional pairing of glycans with lectins. Cell Mol Life Sci 2016; 73:1989-2016. [PMID: 26956894 PMCID: PMC11108359 DOI: 10.1007/s00018-016-2163-8] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 02/08/2016] [Accepted: 02/09/2016] [Indexed: 02/07/2023]
Abstract
Carbohydrates establish the third alphabet of life. As part of cellular glycoconjugates, the glycans generate a multitude of signals in a minimum of space. The presence of distinct glycotopes and the glycome diversity are mapped by sugar receptors (antibodies and lectins). Endogenous (tissue) lectins can read the sugar-encoded information and translate it into functional aspects of cell sociology. Illustrated by instructive examples, each glycan has its own ligand properties. Lectins with different folds can converge to target the same epitope, while intrafamily diversification enables functional cooperation and antagonism. The emerging evidence for the concept of a network calls for a detailed fingerprinting. Due to the high degree of plasticity and dynamics of the display of genes for lectins the validity of extrapolations between different organisms of the phylogenetic tree yet is inevitably limited.
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Affiliation(s)
- H-J Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539, Munich, Germany.
| | - J C Manning
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539, Munich, Germany
| | - J Kopitz
- Institute of Pathology, Department of Applied Tumor Biology, Ruprecht-Karls-University Heidelberg, Im Neuenheimer Feld 224, 69120, Heidelberg, Germany
| | - S André
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539, Munich, Germany
| | - H Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539, Munich, Germany
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Mirzaei H, Kazemi B, Bandehpour M, Shoari A, Asgary V, Ardestani MS, Madadkar-Sobhani A, Cohan RA. Computational and nonglycosylated systems: a simpler approach for development of nanosized PEGylated proteins. DRUG DESIGN DEVELOPMENT AND THERAPY 2016; 10:1193-200. [PMID: 27042012 PMCID: PMC4801162 DOI: 10.2147/dddt.s98323] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Cysteine PEGylation includes several steps, and is difficult to manage in practice. In the current investigation, the cysteine PEGylation of erythropoietin analogs was examined using computational and nonglycosylated systems to define a simpler approach for specific PEGylation. Two model analogs (E31C and E89C) were selected for PEGylation based on lowest structural deviation from the native form, accessibility, and nucleophilicity of the free thiol group. The selected analogs were cloned and the expression was assessed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and Western blot using Coomassie blue staining and anti-His monoclonal antibody, respectively. PEGylation with 20 kDa mPEG-maleimide resulted in 79% and 82% conjugation yield for E31C and E89C nonglycosylated erythropoietin (ngEPO) analogs, respectively. The size distribution and charge analysis showed an increase in size and negative charge of the PEGylated forms compared with nonconjugated ones. Biological assay revealed that E31C and E89C mutations and subsequent PEGylation of ngEPO analogs have no deleterious effects on in vitro biological activity when compared to CHO-derived recombinant human erythropoietin. In addition, PEG-conjugated ngEPOs showed a significant increase in plasma half-lives after injection into rats when compared to nonconjugated ones. The development of the cysteine-PEGylated proteins using nonglycosylated expression system and in silico technique can be considered an efficient approach in terms of optimization of PEGylation parameters, time, and cost.
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Affiliation(s)
- Hadi Mirzaei
- Department of Biotechnology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahram Kazemi
- Department of Biotechnology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojgan Bandehpour
- Department of Biotechnology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Shoari
- Department of Pilot Nanobiotechnology, Pasteur Institute of Iran, Tehran, Iran
| | - Vahid Asgary
- Department of Pilot Nanobiotechnology, Pasteur Institute of Iran, Tehran, Iran
| | - Mehdi Shafiee Ardestani
- Department of Radiopharmacy, Pharmacy Faculty, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Reza Ahangari Cohan
- Department of Pilot Nanobiotechnology, Pasteur Institute of Iran, Tehran, Iran
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26
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Unraveling functional significance of natural variations of a human galectin by glycodendrimersomes with programmable glycan surface. Proc Natl Acad Sci U S A 2015; 112:5585-90. [PMID: 25902539 DOI: 10.1073/pnas.1506220112] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Surface-presented glycans (complex carbohydrates) are docking sites for adhesion/growth-regulatory galectins within cell-cell/matrix interactions. Alteration of the linker length in human galectin-8 and single-site mutation (F19Y) are used herein to illustrate the potential of glycodendrimersomes with programmable glycan displays as a model system to reveal the functional impact of natural sequence variations in trans recognition. Extension of the linker length slightly reduces lectin capacity as agglutinin and slows down aggregate formation at low ligand surface density. The mutant protein is considerably less active as agglutinin and less sensitive to low-level ligand presentation. The present results suggest that mimicking glycan complexity and microdomain occurrence on the glycodendrimersome surface can provide key insights into mechanisms to accomplish natural selectivity and specificity of lectins in structural and topological terms.
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