1
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Purushothaman A, Mohajeri M, Lele TP. The role of glycans in the mechanobiology of cancer. J Biol Chem 2023; 299:102935. [PMID: 36693448 PMCID: PMC9930169 DOI: 10.1016/j.jbc.2023.102935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/22/2023] Open
Abstract
Although cancer is a genetic disease, physical changes such as stiffening of the extracellular matrix also commonly occur in cancer. Cancer cells sense and respond to extracellular matrix stiffening through the process of mechanotransduction. Cancer cell mechanotransduction can enhance cancer-promoting cell behaviors such as survival signaling, proliferation, and migration. Glycans, carbohydrate-based polymers, have recently emerged as important mediators and/or modulators of cancer cell mechanotransduction. Stiffer tumors are characterized by increased glycan content on cancer cells and their associated extracellular matrix. Here we review the role of cancer-associated glycans in coupled mechanical and biochemical alterations during cancer progression. We discuss the recent evidence on how increased expression of different glycans, in the form of glycoproteins and proteoglycans, contributes to both mechanical changes in tumors and corresponding cancer cell responses. We conclude with a summary of emerging tools that can be used to modify glycans for future studies in cancer mechanobiology.
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Affiliation(s)
- Anurag Purushothaman
- Department of Biomedical Engineering, Texas A&M University, Houston, Texas, USA.
| | - Mohammad Mohajeri
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA
| | - Tanmay P Lele
- Department of Biomedical Engineering, Texas A&M University, Houston, Texas, USA; Department of Biomedical Engineering, Texas A&M University, College Station, Texas, USA; Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas, USA; Department of Translational Medical Sciences, Texas A&M University, Houston, Texas, USA.
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2
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Sørensen DM, Büll C, Madsen TD, Lira-Navarrete E, Clausen TM, Clark AE, Garretson AF, Karlsson R, Pijnenborg JFA, Yin X, Miller RL, Chanda SK, Boltje TJ, Schjoldager KT, Vakhrushev SY, Halim A, Esko JD, Carlin AF, Hurtado-Guerrero R, Weigert R, Clausen H, Narimatsu Y. Identification of global inhibitors of cellular glycosylation. Nat Commun 2023; 14:948. [PMID: 36804936 PMCID: PMC9941569 DOI: 10.1038/s41467-023-36598-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 02/08/2023] [Indexed: 02/22/2023] Open
Abstract
Small molecule inhibitors of glycosylation enzymes are valuable tools for dissecting glycan functions and potential drug candidates. Screening for inhibitors of glycosyltransferases are mainly performed by in vitro enzyme assays with difficulties moving candidates to cells and animals. Here, we circumvent this by employing a cell-based screening assay using glycoengineered cells expressing tailored reporter glycoproteins. We focused on GalNAc-type O-glycosylation and selected the GalNAc-T11 isoenzyme that selectively glycosylates endocytic low-density lipoprotein receptor (LDLR)-related proteins as targets. Our screen of a limited small molecule compound library did not identify selective inhibitors of GalNAc-T11, however, we identify two compounds that broadly inhibited Golgi-localized glycosylation processes. These compounds mediate the reversible fragmentation of the Golgi system without affecting secretion. We demonstrate how these inhibitors can be used to manipulate glycosylation in cells to induce expression of truncated O-glycans and augment binding of cancer-specific Tn-glycoprotein antibodies and to inhibit expression of heparan sulfate and binding and infection of SARS-CoV-2.
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Affiliation(s)
- Daniel Madriz Sørensen
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark
| | - Christian Büll
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark
- Department of Biomolecular Chemistry, Institute for Molecules and Materials, Radboud University, 6525 AJ, Nijmegen, The Netherlands
| | - Thomas D Madsen
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Erandi Lira-Navarrete
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark
- The Institute for Biocomputation and Physics of Complex Systems (BIFI), Mariano Esquillor s/n, Campus Rio Ebro, 50018, Zaragoza, Spain
- Fundación ARAID, 50018, Zaragoza, Spain
| | - Thomas Mandel Clausen
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark
- John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Alex E Clark
- Department of Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Aaron F Garretson
- Department of Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Richard Karlsson
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark
| | - Johan F A Pijnenborg
- Institute for Molecules and Materials, Department of Synthetic Organic Chemistry, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Xin Yin
- Immunity and Pathogenesis Program, Infectious and Inflammatory Disease Center, Sanford Burnham Prebys Medical Discovery Institute, 10901 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Rebecca L Miller
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark
| | - Sumit K Chanda
- Immunity and Pathogenesis Program, Infectious and Inflammatory Disease Center, Sanford Burnham Prebys Medical Discovery Institute, 10901 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Thomas J Boltje
- Institute for Molecules and Materials, Department of Synthetic Organic Chemistry, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Katrine T Schjoldager
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark
| | - Sergey Y Vakhrushev
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark
| | - Adnan Halim
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark
| | - Jeffrey D Esko
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Aaron F Carlin
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Ramon Hurtado-Guerrero
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark
- The Institute for Biocomputation and Physics of Complex Systems (BIFI), Mariano Esquillor s/n, Campus Rio Ebro, 50018, Zaragoza, Spain
- Fundación ARAID, 50018, Zaragoza, Spain
| | - Roberto Weigert
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Henrik Clausen
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark.
| | - Yoshiki Narimatsu
- Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, Copenhagen, Denmark.
- GlycoDisplay ApS, Copenhagen, Denmark.
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3
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Tapkir SR, Patil RH, Galave SA, Phadtare GR, Khedkar VM, Garud DR. Synthesis, biological evaluation and molecular docking studies of quinoline‐conjugated 1,2,
3‐triazole
derivatives as antileishmanial agents. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sandeep R. Tapkir
- Department of Chemistry Sir Parashurambhau College (Affiliated to Savitribai Phule Pune University) Tilak road Pune India
| | - Rajendra H. Patil
- Department of Biotechnology Savitribai Phule Pune University Pune India
| | - Sharad A. Galave
- Department of Chemistry Sir Parashurambhau College (Affiliated to Savitribai Phule Pune University) Tilak road Pune India
| | - Ganesh R. Phadtare
- Department of Chemistry Sir Parashurambhau College (Affiliated to Savitribai Phule Pune University) Tilak road Pune India
| | | | - Dinesh R. Garud
- Department of Chemistry Sir Parashurambhau College (Affiliated to Savitribai Phule Pune University) Tilak road Pune India
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4
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Xyloside Derivatives as Molecular Tools to Selectively Inhibit Heparan Sulfate and Chondroitin Sulfate Proteoglycan Biosynthesis. Methods Mol Biol 2021. [PMID: 34626420 DOI: 10.1007/978-1-0716-1398-6_56] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Glycosaminoglycan (GAG) side chains of proteoglycans are involved in a wide variety of developmental and pathophysiological functions. Similar to a gene knockout, the ability to inhibit GAG biosynthesis would allow us to examine the function of endogenous GAG chains. However, ubiquitously and irreversibly knocking out all GAG biosynthesis would cause multiple effects, making it difficult to attribute a specific biological role to a specific GAG structure in spatiotemporal manner. Reversible and selective inhibition of GAG biosynthesis would allow us to examine the importance of endogenous GAGs to specific cellular, tissue, or organ systems. In this chapter, we describe the chemical synthesis and biological evaluation of xyloside derivatives as selective inhibitors of heparan sulfate and chondroitin/dermatan sulfate proteoglycan biosynthesis.
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5
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Metabolic Labeling of Proteoglycans and Analysis of Their Synthesis and Sorting in Filter-Grown and Polarized Epithelial Cells. Methods Mol Biol 2021. [PMID: 34626367 DOI: 10.1007/978-1-0716-1398-6_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Studies of synthesis, turnover, and secretion of macromolecules in cell culture are carried out to address mechanisms of cellular and physiological importance. Culture systems have been developed to mimic the in vivo situation as much as possible. In line with this aim, epithelial and endothelial cells have been grown on filters for more than three decades. Growing such cells on permeable support allows for nutrient uptake via the basolateral membrane of tight epithelial monolayers, from a medium reservoir underneath the filter. While this basolateral medium reservoir resembles the blood supply, the apical medium reservoir resembles the organ lumen. Growing the cells in a polarized manner allows for studies of differential transport and localization of apical and basolateral proteins and of endocytic and secretory transport at both sides of the epithelium. Here we describe how metabolic labeling of proteoglycans (PGs) with 35S-labeled sulfate enables analysis of synthesis of different types of PGs, with respect to size, glycosaminoglycan (GAG) chain length, and charge. We also describe protocols for studies of intracellular PG sorting, in the apical and basolateral direction in polarized epithelial cells, in the absence and presence of inhibitors of synthesis and transport.
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6
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Maciej-Hulme ML, Dubaissi E, Shao C, Zaia J, Amaya E, Flitsch SL, Merry CLR. Selective Inhibition of Heparan Sulphate and Not Chondroitin Sulphate Biosynthesis by a Small, Soluble Competitive Inhibitor. Int J Mol Sci 2021; 22:ijms22136988. [PMID: 34209670 PMCID: PMC8269443 DOI: 10.3390/ijms22136988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/16/2021] [Accepted: 06/19/2021] [Indexed: 11/29/2022] Open
Abstract
The glycosaminoglycan, heparan sulphate (HS), orchestrates many developmental processes. Yet its biological role has not yet fully been elucidated. Small molecule chemical inhibitors can be used to perturb HS function and these compounds provide cheap alternatives to genetic manipulation methods. However, existing chemical inhibition methods for HS also interfere with chondroitin sulphate (CS), complicating data interpretation of HS function. Herein, a simple method for the selective inhibition of HS biosynthesis is described. Using endogenous metabolic sugar pathways, Ac4GalNAz produces UDP-GlcNAz, which can target HS synthesis. Cell treatment with Ac4GalNAz resulted in defective chain elongation of the polymer and decreased HS expression. Conversely, no adverse effect on CS production was observed. The inhibition was transient and dose-dependent, affording rescue of HS expression after removal of the unnatural azido sugar. The utility of inhibition is demonstrated in cell culture and in whole organisms, demonstrating that this small molecule can be used as a tool for HS inhibition in biological systems.
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Affiliation(s)
- Marissa L. Maciej-Hulme
- Materials Science Centre, School of Materials, The University of Manchester, Grosvenor St., Manchester M1 7HS, UK
- Correspondence: (M.L.M.-H.); (C.L.R.M.)
| | - Eamon Dubaissi
- Division of Cell Matrix Biology & Regenerative Medicine, Faculty of Biology, Medicine and Health, Michael Smith Building, The University of Manchester, Oxford Road, Manchester M13 9PT, UK; (E.D.); (E.A.)
| | - Chun Shao
- Center for Biomedical Mass Spectrometry, Boston University School of Medicine, 670 Albany Street, Boston, MA 02118, USA; (C.S.); (J.Z.)
| | - Joseph Zaia
- Center for Biomedical Mass Spectrometry, Boston University School of Medicine, 670 Albany Street, Boston, MA 02118, USA; (C.S.); (J.Z.)
| | - Enrique Amaya
- Division of Cell Matrix Biology & Regenerative Medicine, Faculty of Biology, Medicine and Health, Michael Smith Building, The University of Manchester, Oxford Road, Manchester M13 9PT, UK; (E.D.); (E.A.)
| | - Sabine L. Flitsch
- School of Chemistry & Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, UK;
| | - Catherine L. R. Merry
- Materials Science Centre, School of Materials, The University of Manchester, Grosvenor St., Manchester M1 7HS, UK
- Correspondence: (M.L.M.-H.); (C.L.R.M.)
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7
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Kalita M, Villanueva-Meyer J, Ohkawa Y, Kalyanaraman C, Chen K, Mohamed E, Parker MFL, Jacobson MP, Phillips JJ, Evans MJ, Wilson DM. Synthesis and Screening of α-Xylosides in Human Glioblastoma Cells. Mol Pharm 2021; 18:451-460. [PMID: 33315406 PMCID: PMC8483608 DOI: 10.1021/acs.molpharmaceut.0c00839] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Glycosaminoglycans (GAGs) such as heparan sulfate and chondroitin sulfate decorate all mammalian cell surfaces. These mucopolysaccharides act as coreceptors for extracellular ligands, regulating cell signaling, growth, proliferation, and adhesion. In glioblastoma, the most common type of primary malignant brain tumor, dysregulated GAG biosynthesis results in altered chain length, sulfation patterns, and the ratio of contributing monosaccharides. These events contribute to the loss of normal cellular function, initiating and sustaining malignant growth. Disruption of the aberrant cell surface GAGs with small molecule inhibitors of GAG biosynthetic enzymes is a potential therapeutic approach to blocking the rogue signaling and proliferation in glioma, including glioblastoma. Previously, 4-azido-xylose-α-UDP sugar inhibited both xylosyltransferase (XYLT-1) and β-1,4-galactosyltransferase-7 (β-GALT-7)-the first and second enzymes of GAG biosynthesis-when microinjected into a cell. In another study, 4-deoxy-4-fluoro-β-xylosides inhibited β-GALT-7 at 1 mM concentration in vitro. In this work, we seek to solve the enduring problem of drug delivery to human glioma cells at low concentrations. We developed a library of hydrophobic, presumed prodrugs 4-deoxy-4-fluoro-2,3-dibenzoyl-(α- or β-) xylosides and their corresponding hydrophilic inhibitors of XYLT-1 and β-GALT-7 enzymes. The prodrugs were designed to be activatable by carboxylesterase enzymes overexpressed in glioblastoma. Using a colorimetric MTT assay in human glioblastoma cell lines, we identified a prodrug-drug pair (4-nitrophenyl-α-xylosides) as lead drug candidates. The candidates arrest U251 cell growth at an IC50 = 380 nM (prodrug), 122 μM (drug), and U87 cells at IC50 = 10.57 μM (prodrug). Molecular docking studies were consistent with preferred binding of the α- versus β-nitro xyloside conformer to XYLT-1 and β-GALT-7 enzymes.
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Affiliation(s)
- Mausam Kalita
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
- Department of Neurological Surgery, Brain Tumor Center University of California, San Francisco, San Francisco, California 94158, United States
| | - Javier Villanueva-Meyer
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
| | - Yuki Ohkawa
- Department of Neurological Surgery, Brain Tumor Center University of California, San Francisco, San Francisco, California 94158, United States
| | - Chakrapani Kalyanaraman
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, California 94158, United States
| | - Katharine Chen
- Department of Neurological Surgery, Brain Tumor Center University of California, San Francisco, San Francisco, California 94158, United States
| | - Esraa Mohamed
- Department of Neurological Surgery, Brain Tumor Center University of California, San Francisco, San Francisco, California 94158, United States
| | - Matthew F L Parker
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
| | - Matthew P Jacobson
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, California 94158, United States
| | - Joanna J Phillips
- Department of Neurological Surgery, Brain Tumor Center University of California, San Francisco, San Francisco, California 94158, United States
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, California 94158, United States
- Department of Pathology, Division of Neuropathology University of California, San Francisco, San Francisco, California 94143, United States
| | - Michael J Evans
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
| | - David M Wilson
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
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8
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Ravikumar M, Smith RAA, Nurcombe V, Cool SM. Heparan Sulfate Proteoglycans: Key Mediators of Stem Cell Function. Front Cell Dev Biol 2020; 8:581213. [PMID: 33330458 PMCID: PMC7710810 DOI: 10.3389/fcell.2020.581213] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/29/2020] [Indexed: 12/11/2022] Open
Abstract
Heparan sulfate proteoglycans (HSPGs) are an evolutionarily ancient subclass of glycoproteins with exquisite structural complexity. They are ubiquitously expressed across tissues and have been found to exert a multitude of effects on cell behavior and the surrounding microenvironment. Evidence has shown that heterogeneity in HSPG composition is crucial to its functions as an essential scaffolding component in the extracellular matrix as well as a vital cell surface signaling co-receptor. Here, we provide an overview of the significance of HSPGs as essential regulators of stem cell function. We discuss the various roles of HSPGs in distinct stem cell types during key physiological events, from development through to tissue homeostasis and regeneration. The contribution of aberrant HSPG production to altered stem cell properties and dysregulated cellular homeostasis characteristic of cancer is also reviewed. Finally, we consider approaches to better understand and exploit the multifaceted functions of HSPGs in influencing stem cell characteristics for cell therapy and associated culture expansion strategies.
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Affiliation(s)
- Maanasa Ravikumar
- Glycotherapeutics Group, Institute of Medical Biology, Agency for Science, Technology and Research (A∗STAR), Singapore, Singapore.,Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Raymond Alexander Alfred Smith
- Glycotherapeutics Group, Institute of Medical Biology, Agency for Science, Technology and Research (A∗STAR), Singapore, Singapore
| | - Victor Nurcombe
- Glycotherapeutics Group, Institute of Medical Biology, Agency for Science, Technology and Research (A∗STAR), Singapore, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technological University-Imperial College London, Singapore, Singapore
| | - Simon M Cool
- Glycotherapeutics Group, Institute of Medical Biology, Agency for Science, Technology and Research (A∗STAR), Singapore, Singapore.,Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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9
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Buffone A, Weaver VM. Don't sugarcoat it: How glycocalyx composition influences cancer progression. J Cell Biol 2020; 219:133536. [PMID: 31874115 PMCID: PMC7039198 DOI: 10.1083/jcb.201910070] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/19/2019] [Accepted: 12/03/2019] [Indexed: 12/17/2022] Open
Abstract
Buffone and Weaver discuss how the structure of the backbones and glycans of the tumor glycocalyx governs cell–matrix interactions and directs cancer progression. Mechanical interactions between tumors and the extracellular matrix (ECM) of the surrounding tissues have profound effects on a wide variety of cellular functions. An underappreciated mediator of tumor–ECM interactions is the glycocalyx, the sugar-decorated proteins and lipids that act as a buffer between the tumor and the ECM, which in turn mediates all cell-tissue mechanics. Importantly, tumors have an increase in the density of the glycocalyx, which in turn increases the tension of the cell membrane, alters tissue mechanics, and drives a more cancerous phenotype. In this review, we describe the basic components of the glycocalyx and the glycan moieties implicated in cancer. Next, we examine the important role the glycocalyx plays in driving tension-mediated cancer cell signaling through a self-enforcing feedback loop that expands the glycocalyx and furthers cancer progression. Finally, we discuss current tools used to edit the composition of the glycocalyx and the future challenges in leveraging these tools into a novel tractable approach to treat cancer.
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Affiliation(s)
- Alexander Buffone
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA.,Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, CA
| | - Valerie M Weaver
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, CA.,Departments of Radiation Oncology and Bioengineering and Therapeutic Sciences, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, and Helen Diller Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA
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10
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Odiparcil, a potential glycosaminoglycans clearance therapy in mucopolysaccharidosis VI-Evidence from in vitro and in vivo models. PLoS One 2020; 15:e0233032. [PMID: 32413051 PMCID: PMC7228089 DOI: 10.1371/journal.pone.0233032] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 04/27/2020] [Indexed: 12/16/2022] Open
Abstract
Mucopolysaccharidoses are a class of lysosomal storage diseases, characterized by enzymatic deficiency in the degradation of specific glycosaminoglycans (GAG). Pathological accumulation of excess GAG leads to multiple clinical symptoms with systemic character, most severely affecting bones, muscles and connective tissues. Current therapies include periodic intravenous infusion of supplementary recombinant enzyme (Enzyme Replacement Therapy–ERT) or bone marrow transplantation. However, ERT has limited efficacy due to poor penetration in some organs and tissues. Here, we investigated the potential of the β-D-xyloside derivative odiparcil as an oral GAG clearance therapy for Maroteaux–Lamy syndrome (Mucopolysaccharidosis type VI, MPS VI). In vitro, in bovine aortic endothelial cells, odiparcil stimulated the secretion of sulphated GAG into culture media, mainly of chondroitin sulphate (CS) /dermatan sulphate (DS) type. Efficacy of odiparcil in reducing intracellular GAG content was investigated in skin fibroblasts from MPS VI patients where odiparcil was shown to reduce efficiently the accumulation of intracellular CS with an EC50 in the range of 1 μM. In vivo, in wild type rats, after oral administrations, odiparcil was well distributed, achieving μM concentrations in MPS VI disease-relevant tissues and organs (bone, cartilage, heart and cornea). In MPS VI Arylsulphatase B deficient mice (Arsb-), after chronic oral administration, odiparcil consistently stimulated the urinary excretion of sulphated GAG throughout the treatment period and significantly reduced tissue GAG accumulation in liver and kidney. Furthermore, odiparcil diminished the pathological cartilage thickening observed in trachea and femoral growth plates of MPS VI mice. The therapeutic efficacy of odiparcil was similar in models of early (treatment starting in juvenile, 4 weeks old mice) or established disease (treatment starting in adult, 3 months old mice). Our data demonstrate that odiparcil effectively diverts the synthesis of cellular glycosaminoglycans into secreted soluble species and this effect can be used for reducing cellular and tissue GAG accumulation in MPS VI models. Therefore, our data reveal the potential of odiparcil as an oral GAG clearance therapy for MPS VI patients.
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11
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Lan Y, Li X, Liu Y, He Y, Hao C, Wang H, Jin L, Zhang G, Zhang S, Zhou A, Zhang L. Pingyangmycin inhibits glycosaminoglycan sulphation in both cancer cells and tumour tissues. J Cell Mol Med 2020; 24:3419-3430. [PMID: 32068946 PMCID: PMC7131950 DOI: 10.1111/jcmm.15017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 01/05/2020] [Accepted: 01/10/2020] [Indexed: 12/18/2022] Open
Abstract
Pingyangmycin is a clinically used anticancer drug and induces lung fibrosis in certain cancer patients. We previously reported that the negatively charged cell surface glycosaminoglycans are involved in the cellular uptake of the positively charged pingyangmycin. However, it is unknown if pingyangmycin affects glycosaminoglycan structures. Seven cell lines and a Lewis lung carcinoma‐injected C57BL/6 mouse model were used to understand the cytotoxicity of pingyangmycin and its effect on glycosaminoglycan biosynthesis. Stable isotope labelling coupled with LC/MS method was used to quantify glycosaminoglycan disaccharide compositions from pingyangmycin‐treated and untreated cell and tumour samples. Pingyangmycin reduced both chondroitin sulphate and heparan sulphate sulphation in cancer cells and in tumours. The effect was persistent at different pingyangmycin concentrations and at different exposure times. Moreover, the cytotoxicity of pingyangmycin was decreased in the presence of soluble glycosaminoglycans, in the glycosaminoglycan‐deficient cell line CHO745, and in the presence of chlorate. A flow cytometry‐based cell surface FGF/FGFR/glycosaminoglycan binding assay also showed that pingyangmycin changed cell surface glycosaminoglycan structures. Changes in the structures of glycosaminoglycans may be related to fibrosis induced by pingyangmycin in certain cancer patients.
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Affiliation(s)
- Ying Lan
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China.,College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Xiulian Li
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yong Liu
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yanli He
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Cui Hao
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hua Wang
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Liying Jin
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Guoqing Zhang
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shufeng Zhang
- College of Chemistry, Tianjin Normal University, Tianjin, China
| | - Aimin Zhou
- Clinical Chemistry Program, Department of Chemistry, Cleveland State University, Cleveland, OH, USA
| | - Lijuan Zhang
- Systems Biology & Medicine Center for Complex Diseases, Affiliated Hospital of Qingdao University, Qingdao, China
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12
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Thorsheim K, Willén D, Tykesson E, Ståhle J, Praly JP, Vidal S, Johnson MT, Widmalm G, Manner S, Ellervik U. Naphthyl Thio- and Carba-xylopyranosides for Exploration of the Active Site of β-1,4-Galactosyltransferase 7 (β4GalT7). Chemistry 2017; 23:18057-18065. [DOI: 10.1002/chem.201704267] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Karin Thorsheim
- Center for Analysis and Synthesis, Center for Chemistry and Chemical Engineering; Lund University; P.O. Box 124 SE-221 00 Lund Sweden
| | - Daniel Willén
- Center for Analysis and Synthesis, Center for Chemistry and Chemical Engineering; Lund University; P.O. Box 124 SE-221 00 Lund Sweden
| | - Emil Tykesson
- Center for Analysis and Synthesis, Center for Chemistry and Chemical Engineering; Lund University; P.O. Box 124 SE-221 00 Lund Sweden
- Department of Experimental Medical Science; Lund University, BMC C12; SE-221 84 Lund Sweden
| | - Jonas Ståhle
- Department of Organic Chemistry; Arrhenius Laborator; Stockholm University SE-106 91 Stockholm Sweden
| | - Jean-Pierre Praly
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (UMR 5246); Laboratoire de Chimie Organique 2; Université Claude Bernard Lyon 1 and CNRS; 43 Boulevard du 11 Novembre 1918 F-69622 Villeurbanne France
| | - Sébastien Vidal
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (UMR 5246); Laboratoire de Chimie Organique 2; Université Claude Bernard Lyon 1 and CNRS; 43 Boulevard du 11 Novembre 1918 F-69622 Villeurbanne France
| | - Magnus T. Johnson
- Center for Analysis and Synthesis, Center for Chemistry and Chemical Engineering; Lund University; P.O. Box 124 SE-221 00 Lund Sweden
| | - Göran Widmalm
- Department of Organic Chemistry; Arrhenius Laborator; Stockholm University SE-106 91 Stockholm Sweden
| | - Sophie Manner
- Center for Analysis and Synthesis, Center for Chemistry and Chemical Engineering; Lund University; P.O. Box 124 SE-221 00 Lund Sweden
| | - Ulf Ellervik
- Center for Analysis and Synthesis, Center for Chemistry and Chemical Engineering; Lund University; P.O. Box 124 SE-221 00 Lund Sweden
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13
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Dahbi S, Jacquinet JC, Bertin-Jung I, Robert A, Ramalanjaona N, Gulberti S, Fournel-Gigleux S, Lopin-Bon C. Synthesis of a library of variously modified 4-methylumbelliferyl xylosides and a structure-activity study of human β4GalT7. Org Biomol Chem 2017; 15:9653-9669. [PMID: 29116283 DOI: 10.1039/c7ob02530k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Proteoglycans (PGs) are complex macromolecules that are composed of glycosaminoglycan (GAG) chains covalently attached to a core protein through a tetrasaccharide linker. The biosynthesis of PGs is complex and involves a large number of glycosyltranferases. Here we present a structure-activity study of human β4GalT7, which transfers the first Gal residue onto a xyloside moiety of the linkage region. An efficient and regiocontrolled synthesis of a library of modified analogs of 4-methylumbelliferyl xyloside (XylMU) is reported herein. Hydroxyl groups at the position C-2, C-3 or C-4 have been epimerized and/or replaced by a hydrogen or a fluorine, while the anomeric oxygen was replaced by either a sulfur or a sulfone. The effect of these compounds on human β4GalT7 activity in vitro and on GAG biosynthesis in cellulo was then evaluated.
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Affiliation(s)
- Samir Dahbi
- Univ. Orléans et CNRS, ICOA, UMR 7311, F-45067 Orléans, France.
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14
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Chua JS, Kuberan B. Synthetic Xylosides: Probing the Glycosaminoglycan Biosynthetic Machinery for Biomedical Applications. Acc Chem Res 2017; 50:2693-2705. [PMID: 29058876 DOI: 10.1021/acs.accounts.7b00289] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Glycosaminoglycans (GAGs) are polysaccharides ubiquitously found on cell surfaces and in the extracellular matrix (ECM). They regulate numerous cellular signaling events involved in many developmental and pathophysiological processes. GAGs are composed of complex sequences of repeating disaccharide units, each of which can carry many different modifications. The tremendous structural variations account for their ability to bind many proteins and thus, for their numerous functions. Although the sequence of GAG biosynthetic events and the enzymes involved mostly were deduced a decade ago, the emergence of tissue or cell specific GAGs from a nontemplate driven process remains an enigma. Current knowledge favors the hypothesis that macromolecular assemblies of GAG biosynthetic enzymes termed "GAGOSOMEs" coordinate polymerization and fine structural modifications in the Golgi apparatus. Distinct GAG structures arise from the differential channeling of substrates through the Golgi apparatus to various GAGOSOMEs. As GAGs perform multiple regulatory roles, it is of great interest to develop molecular strategies to selectively interfere with GAG biosynthesis for therapeutic applications. In this Account, we assess our present knowledge on GAG biosynthesis, the manipulation of GAG biosynthesis using synthetic xylosides, and the unrealized potential of these xylosides in various biomedical applications. Synthetic xylosides are small molecules consisting of a xylose attached to an aglycone group, and they compete with endogenous proteins for precursors and biosynthetic enzymes to assemble GAGs. This competition reduces endogenous proteoglycan-bound GAGs while increasing xyloside-bound free GAGs, mostly chondroitin sulfate (CS) and less heparan sulfate (HS), resulting in a variety of biological consequences. To date, hundreds of xylosides have been published and the importance of the aglycone group in determining the structure of the primed GAG chains is well established. However, the structure-activity relationship has long been cryptic. Nonetheless, xylosides have been designed to increase HS priming, modified to inhibit endogenous GAG production without priming, and engineered to be more biologically relevant. Synthetic xylosides hold great promise in many biomedical applications and as therapeutics. They are small, orally bioavailable, easily excreted, and utilize the host cell biosynthetic machinery to assemble GAGs that are likely nonimmunogenic. Various xylosides have been shown, in different biological systems, to have anticoagulant effects, selectively kill tumor cells, abrogate angiogenic and metastatic pathways, promote angiogenesis and neuronal growth, and affect embryonic development. However, most of these studies utilized the commercially available one or two β-D-xylosides and focused on the impact of endogenous proteoglycan-bound GAG inhibition on biological activity. Nevertheless, the manipulation of cell behavior as a result of stabilizing growth factor signaling with xyloside-primed GAGs is also reckonable but underexplored. Recent advances in the use of molecular modeling and docking simulations to understand the structure-activity relationships of xylosides have opened up the possibility of a more rational aglycone design to achieve a desirable biological outcome through selective priming and inhibitory activities. We envision these advances will encourage more researchers to explore these fascinating xylosides, harness the GAG biosynthetic machinery for a wider range of biomedical applications, and accelerate the successful transition of xyloside-based therapeutics from bench to bedside.
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Affiliation(s)
- Jie Shi Chua
- Department
of Bioengineering, ‡Department of Medicinal Chemistry, §Department of Biology, and ∥Interdepartmental Program in Neuroscience, University of Utah, Salt Lake City, Utah 84112, United States
| | - Balagurunathan Kuberan
- Department
of Bioengineering, ‡Department of Medicinal Chemistry, §Department of Biology, and ∥Interdepartmental Program in Neuroscience, University of Utah, Salt Lake City, Utah 84112, United States
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15
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Huang ML, Michalak AL, Fisher CJ, Christy M, Smith RAA, Godula K. Small Molecule Antagonist of Cell Surface Glycosaminoglycans Restricts Mouse Embryonic Stem Cells in a Pluripotent State. Stem Cells 2017; 36:45-54. [PMID: 28984039 DOI: 10.1002/stem.2714] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 09/06/2017] [Accepted: 09/14/2017] [Indexed: 11/06/2022]
Abstract
Recently, the field of stem cell-based regeneration has turned its attention toward chemical approaches for controlling the pluripotency and differentiation of embryonic stem cells (ESCs) using drug-like small molecule modulators. Growth factor receptors or their associated downstream kinases that regulate intracellular signaling pathways during differentiation are typically the targets for these molecules. The glycocalyx, which plays an essential role in actuating responses to growth factors at the cellular boundary, offers an underexplored opportunity for intervention using small molecules to influence differentiation. Here, we show that surfen, an antagonist of cell-surface glycosaminoglycans required for growth factor association with cognate receptors, acts as a potent and general inhibitor of differentiation and promoter of pluripotency in mouse ESCs. This finding shows that drugging the stem cell Glycome with small molecules to silence differentiation cues can provide a powerful new alternative to existing techniques for controlling stem cell fate. Stem Cells 2018;36:45-54.
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Affiliation(s)
- Mia L Huang
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, USA
| | - Austen L Michalak
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, USA
| | - Christopher J Fisher
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, USA
| | - Mitchell Christy
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, USA
| | - Raymond A A Smith
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, USA
| | - Kamil Godula
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, USA
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16
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Inhibition of chondroitin sulfate glycosaminoglycans incorporation affected odontoblast differentiation in cultured embryonic mouse molars. J Mol Histol 2017; 48:337-345. [PMID: 28756608 DOI: 10.1007/s10735-017-9732-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 07/22/2017] [Indexed: 01/05/2023]
Abstract
Chondroitin sulfate proteoglycan (CSPG) is an important component of extracellular matrix (ECM), it is composed of a core protein and one or more chondroitin sulfate glycosaminoglycan side chains (CS-GAGs). To investigate the roles of its CS-GAGs in dentinogenesis, the mouse mandibular first molar tooth germs at early bell stage were cultivated with or without β-xyloside. As expected, the CS-GAGs were inhibited on their incorporation to CSPGs by β-xyloside, accompanied by the change of morphology of the cultured tooth germs. The histological results and the transmission electron microscopy (TEM) investigation indicated that β-xyloside exhibited obvious inhibiting effects on odontoblasts differentiation compared with the control group. Meanwhile the results of immunohistochemistry, in situ hybridization and quantitative RT-PCR for type I collagen, dentin matrix acidic phosphoprotein 1 and dentin sialophosphoprotein, the products of differentiated odontoblasts, further proved that odontoblasts differentiation was inhibited. Collagen fibers detected in TEM decreased and arranged in disorder as well. Thus we conclude that the inhibition of CS-GAGs incorporation to CSPGs can affect odontoblast differentiation in cultured embryonic mouse molars.
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17
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Ghiselli G. Drug-Mediated Regulation of Glycosaminoglycan Biosynthesis. Med Res Rev 2016; 37:1051-1094. [DOI: 10.1002/med.21429] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 10/26/2016] [Accepted: 10/26/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Giancarlo Ghiselli
- Glyconova Srl; Parco Scientifico Silvano Fumero; Via Ribes 5 Colleretto Giacosa, (TO) Italy
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18
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Thorsheim K, Siegbahn A, Johnsson RE, Stålbrand H, Manner S, Widmalm G, Ellervik U. Chemistry of xylopyranosides. Carbohydr Res 2015; 418:65-88. [PMID: 26580709 DOI: 10.1016/j.carres.2015.10.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 10/09/2015] [Accepted: 10/10/2015] [Indexed: 12/22/2022]
Abstract
Xylose is one of the few monosaccharidic building blocks that are used by mammalian cells. In comparison with other monosaccharides, xylose is rather unusual and, so far, only found in two different mammalian structures, i.e. in the Notch receptor and as the linker between protein and glycosaminoglycan (GAG) chains in proteoglycans. Interestingly, simple soluble xylopyranosides can not only initiate the biosynthesis of soluble GAG chains but also function as inhibitors of important enzymes in the biosynthesis of proteoglycans. Furthermore, xylose is a major constituent of hemicellulosic xylans and thus one of the most abundant carbohydrates on Earth. Altogether, this has spurred a strong interest in xylose chemistry. The scope of this review is to describe synthesis of xylopyranosyl donors, as well as protective group chemistry, modifications, and conformational analysis of xylose.
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Affiliation(s)
- Karin Thorsheim
- Centre for Analysis and Synthesis, Centre for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
| | - Anna Siegbahn
- Centre for Analysis and Synthesis, Centre for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
| | - Richard E Johnsson
- Centre for Analysis and Synthesis, Centre for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
| | - Henrik Stålbrand
- Centre for Molecular Protein Science, Centre for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
| | - Sophie Manner
- Centre for Analysis and Synthesis, Centre for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
| | - Göran Widmalm
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Ulf Ellervik
- Centre for Analysis and Synthesis, Centre for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden.
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19
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Post-translational allosteric activation of the P2X7 receptor through glycosaminoglycan chains of CD44 proteoglycans. Cell Death Discov 2015; 1:15005. [PMID: 27551441 PMCID: PMC4979527 DOI: 10.1038/cddiscovery.2015.5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 06/05/2015] [Indexed: 12/21/2022] Open
Abstract
Here, we present evidence for the positive allosteric modulation of the P2X7 receptor through glycosaminoglycans (GAGs) in CHO (cell line derived from the ovary of the Chinese hamster) cells. The marked potentiation of P2X7 activity through GAGs in the presence of non-saturating agonists concentrations was evident with the endogenous expression of the receptor in CHO cells. The presence of GAGs on the surface of CHO cells greatly increased the sensitivity to adenosine 5'-triphosphate and changed the main P2X7 receptor kinetic parameters EC50, Hill coefficient and E max. GAGs decreased the allosteric inhibition of P2X7 receptor through Mg(2+). GAGs activated P2X7 receptor-mediated cytoplasmic Ca(2+) influx and pore formation. Consequently, wild-type CHO-K1 cells were 2.5-fold more sensitive to cell death induced through P2X7 agonists than mutant CHO-745 cells defective in GAGs biosynthesis. In the present study, we provide the first evidence that the P2X7 receptor interacts with CD44 on the CHO-K1 cell surface. Thus, these data demonstrated that GAGs positively modulate the P2X7 receptor, and sCD44 is a part of a regulatory positive feedback loop linking P2X7 receptor activation for the intracellular response mediated through P2X7 receptor stimulation.
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20
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Abstract
Proteoglycans (PGs) regulate diverse functions in the central nervous system (CNS) by interacting with a number of growth factors, matrix proteins, and cell surface molecules. Heparan sulfate (HS) and chondroitin sulfate (CS) are two major glycosaminoglycans present in the PGs of the CNS. The functionality of these PGs is to a large extent dictated by the fine sulfation patterns present on their glycosaminoglycan (GAG) chains. In the past 15 years, there has been a significant expansion in our knowledge on the role of HS and CS chains in various neurological processes, such as neuronal growth, regeneration, plasticity, and pathfinding. However, defining the relation between distinct sulfation patterns of the GAGs and their functionality has thus far been difficult. With the emergence of novel tools for the synthesis of defined GAG structures, and techniques for their characterization, we are now in a better position to explore the structure-function relation of GAGs in the context of their sulfation patterns. In this review, we discuss the importance of GAGs on CNS development, injury, and disorders with an emphasis on their sulfation patterns. Finally, we outline several GAG-based therapeutic strategies to exploit GAG chains for ameliorating various CNS disorders.
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Affiliation(s)
- Vimal P Swarup
- Department of Bioengineering, University of Utah, Salt Lake City, 84112 UT , USA
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21
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Theocharis AD, Skandalis SS, Neill T, Multhaupt HAB, Hubo M, Frey H, Gopal S, Gomes A, Afratis N, Lim HC, Couchman JR, Filmus J, Sanderson RD, Schaefer L, Iozzo RV, Karamanos NK. Insights into the key roles of proteoglycans in breast cancer biology and translational medicine. Biochim Biophys Acta Rev Cancer 2015; 1855:276-300. [PMID: 25829250 DOI: 10.1016/j.bbcan.2015.03.006] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 02/27/2015] [Accepted: 03/24/2015] [Indexed: 12/18/2022]
Abstract
Proteoglycans control numerous normal and pathological processes, among which are morphogenesis, tissue repair, inflammation, vascularization and cancer metastasis. During tumor development and growth, proteoglycan expression is markedly modified in the tumor microenvironment. Altered expression of proteoglycans on tumor and stromal cell membranes affects cancer cell signaling, growth and survival, cell adhesion, migration and angiogenesis. Despite the high complexity and heterogeneity of breast cancer, the rapid evolution in our knowledge that proteoglycans are among the key players in the breast tumor microenvironment suggests their potential as pharmacological targets in this type of cancer. It has been recently suggested that pharmacological treatment may target proteoglycan metabolism, their utilization as targets for immunotherapy or their direct use as therapeutic agents. The diversity inherent in the proteoglycans that will be presented herein provides the potential for multiple layers of regulation of breast tumor behavior. This review summarizes recent developments concerning the biology of selected proteoglycans in breast cancer, and presents potential targeted therapeutic approaches based on their novel key roles in breast cancer.
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Affiliation(s)
- Achilleas D Theocharis
- Biochemistry, Biochemical Analysis & Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, 26500 Patras, Greece
| | - Spyros S Skandalis
- Biochemistry, Biochemical Analysis & Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, 26500 Patras, Greece
| | - Thomas Neill
- Department of Pathology, Anatomy and Cell Biology and the Cancer Cell Biology and Signaling Program, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Hinke A B Multhaupt
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen, Denmark
| | - Mario Hubo
- University of Frankfurt, Institute of Pharmacology and Toxicology, Theodor-Stern Kai 7, Frankfurt 60590, Germany
| | - Helena Frey
- University of Frankfurt, Institute of Pharmacology and Toxicology, Theodor-Stern Kai 7, Frankfurt 60590, Germany
| | - Sandeep Gopal
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen, Denmark
| | - Angélica Gomes
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen, Denmark
| | - Nikos Afratis
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen, Denmark
| | - Hooi Ching Lim
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen, Denmark
| | - John R Couchman
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen, Denmark
| | - Jorge Filmus
- Department of Biological Sciences, Sunnybrook Research Institute and Department of Medical Biophysics, University of Toronto, Canada
| | - Ralph D Sanderson
- University of Alabama at Birmingham, Department of Pathology, UAB Comprehensive Cancer Center, 1720 2nd Ave. S, WTI 602B, Birmingham, AL 35294, USA
| | - Liliana Schaefer
- University of Frankfurt, Institute of Pharmacology and Toxicology, Theodor-Stern Kai 7, Frankfurt 60590, Germany
| | - Renato V Iozzo
- Department of Pathology, Anatomy and Cell Biology and the Cancer Cell Biology and Signaling Program, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Nikos K Karamanos
- Biochemistry, Biochemical Analysis & Matrix Pathobiology Research Group, Laboratory of Biochemistry, Department of Chemistry, University of Patras, 26500 Patras, Greece.
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22
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Saliba M, Ramalanjaona N, Gulberti S, Bertin-Jung I, Thomas A, Dahbi S, Lopin-Bon C, Jacquinet JC, Breton C, Ouzzine M, Fournel-Gigleux S. Probing the acceptor active site organization of the human recombinant β1,4-galactosyltransferase 7 and design of xyloside-based inhibitors. J Biol Chem 2015; 290:7658-70. [PMID: 25568325 PMCID: PMC4367269 DOI: 10.1074/jbc.m114.628123] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Among glycosaminoglycan (GAG) biosynthetic enzymes, the human β1,4-galactosyltransferase 7 (hβ4GalT7) is characterized by its unique capacity to take over xyloside derivatives linked to a hydrophobic aglycone as substrates and/or inhibitors. This glycosyltransferase is thus a prime target for the development of regulators of GAG synthesis in therapeutics. Here, we report the structure-guided design of hβ4GalT7 inhibitors. By combining molecular modeling, in vitro mutagenesis, and kinetic measurements, and in cellulo analysis of GAG anabolism and decorin glycosylation, we mapped the organization of the acceptor binding pocket, in complex with 4-methylumbelliferone-xylopyranoside as prototype substrate. We show that its organization is governed, on one side, by three tyrosine residues, Tyr194, Tyr196, and Tyr199, which create a hydrophobic environment and provide stacking interactions with both xylopyranoside and aglycone rings. On the opposite side, a hydrogen-bond network is established between the charged amino acids Asp228, Asp229, and Arg226, and the hydroxyl groups of xylose. We identified two key structural features, i.e. the strategic position of Tyr194 forming stacking interactions with the aglycone, and the hydrogen bond between the His195 nitrogen backbone and the carbonyl group of the coumarinyl molecule to develop a tight binder of hβ4GalT7. This led to the synthesis of 4-deoxy-4-fluoroxylose linked to 4-methylumbelliferone that inhibited hβ4GalT7 activity in vitro with a Ki 10 times lower than the Km value and efficiently impaired GAG synthesis in a cell assay. This study provides a valuable probe for the investigation of GAG biology and opens avenues toward the development of bioactive compounds to correct GAG synthesis disorders implicated in different types of malignancies.
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Affiliation(s)
- Mineem Saliba
- From the UMR 7365 CNRS-Université de Lorraine, Biopôle-Faculté de Médecine, CS 50184, 54505 Vandoeuvre-lès-Nancy Cedex
| | - Nick Ramalanjaona
- From the UMR 7365 CNRS-Université de Lorraine, Biopôle-Faculté de Médecine, CS 50184, 54505 Vandoeuvre-lès-Nancy Cedex
| | - Sandrine Gulberti
- From the UMR 7365 CNRS-Université de Lorraine, Biopôle-Faculté de Médecine, CS 50184, 54505 Vandoeuvre-lès-Nancy Cedex
| | - Isabelle Bertin-Jung
- From the UMR 7365 CNRS-Université de Lorraine, Biopôle-Faculté de Médecine, CS 50184, 54505 Vandoeuvre-lès-Nancy Cedex
| | - Aline Thomas
- the University Grenoble Alpes, CERMAV, BP 53, 38041 Grenoble Cedex 9, and
| | - Samir Dahbi
- the UMR 7311 CNRS-Institut de Chimie Organique et Analytique, Université d'Orléans-Pôle de Chimie, Rue de Chartres, 45067 Orléans Cedex 02, France
| | - Chrystel Lopin-Bon
- the UMR 7311 CNRS-Institut de Chimie Organique et Analytique, Université d'Orléans-Pôle de Chimie, Rue de Chartres, 45067 Orléans Cedex 02, France
| | - Jean-Claude Jacquinet
- the UMR 7311 CNRS-Institut de Chimie Organique et Analytique, Université d'Orléans-Pôle de Chimie, Rue de Chartres, 45067 Orléans Cedex 02, France
| | - Christelle Breton
- the University Grenoble Alpes, CERMAV, BP 53, 38041 Grenoble Cedex 9, and
| | - Mohamed Ouzzine
- From the UMR 7365 CNRS-Université de Lorraine, Biopôle-Faculté de Médecine, CS 50184, 54505 Vandoeuvre-lès-Nancy Cedex
| | - Sylvie Fournel-Gigleux
- From the UMR 7365 CNRS-Université de Lorraine, Biopôle-Faculté de Médecine, CS 50184, 54505 Vandoeuvre-lès-Nancy Cedex,
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23
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Brusa C, Muzard M, Rémond C, Plantier-Royon R. β-Xylopyranosides: synthesis and applications. RSC Adv 2015. [DOI: 10.1039/c5ra14023d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In recent years, β-xylopyranosides have attracted interest due to the development of biomass-derived molecules. This review focuses on general routes for the preparation of β-xylopyranosides by chemical and enzymatic pathways and their main uses.
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Affiliation(s)
- Charlotte Brusa
- Université de Reims Champagne-Ardenne
- Institut de Chimie Moléculaire de Reims (ICMR)
- CNRS UMR 7312
- UFR Sciences Exactes et Naturelles
- F-51687 Reims Cedex 2
| | - Murielle Muzard
- Université de Reims Champagne-Ardenne
- Institut de Chimie Moléculaire de Reims (ICMR)
- CNRS UMR 7312
- UFR Sciences Exactes et Naturelles
- F-51687 Reims Cedex 2
| | - Caroline Rémond
- Université de Reims Champagne-Ardenne
- UMR 614
- Fractionnement des AgroRessources et Environnement
- France
- INRA
| | - Richard Plantier-Royon
- Université de Reims Champagne-Ardenne
- Institut de Chimie Moléculaire de Reims (ICMR)
- CNRS UMR 7312
- UFR Sciences Exactes et Naturelles
- F-51687 Reims Cedex 2
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24
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Beahm BJ, Dehnert KW, Derr NL, Kuhn J, Eberhart JK, Spillmann D, Amacher SL, Bertozzi CR. A Visualizable Chain-Terminating Inhibitor of Glycosaminoglycan Biosynthesis in Developing Zebrafish. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310569] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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25
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Beahm BJ, Dehnert KW, Derr NL, Kuhn J, Eberhart JK, Spillmann D, Amacher SL, Bertozzi CR. A visualizable chain-terminating inhibitor of glycosaminoglycan biosynthesis in developing zebrafish. Angew Chem Int Ed Engl 2014; 53:3347-52. [PMID: 24554559 DOI: 10.1002/anie.201310569] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Indexed: 01/01/2023]
Abstract
Heparan sulfate (HS) and chondroitin sulfate (CS) glycosaminoglycans (GAG) are proteoglycan-associated polysaccharides with essential functions in animals. They have been studied extensively by genetic manipulation of biosynthetic enzymes, but chemical tools for probing GAG function are limited. HS and CS possess a conserved xylose residue that links the polysaccharide chain to a protein backbone. Here we report that, in zebrafish embryos, the peptide-proximal xylose residue can be metabolically replaced with a chain-terminating 4-azido-4-deoxyxylose (4-XylAz) residue by administration of UDP-4-azido-4-deoxyxylose (UDP-4-XylAz). UDP-4-XylAz disrupted both HS and CS biosynthesis and caused developmental abnormalities reminiscent of GAG biosynthesis and laminin mutants. The azide substituent of protein-bound 4-XylAz allowed for rapid visualization of the organismal sites of chain termination in vivo through bioorthogonal reaction with fluorescent cyclooctyne probes. UDP-4-XylAz therefore complements genetic tools for studies of GAG function in zebrafish embryogenesis.
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Affiliation(s)
- Brendan J Beahm
- Department of Chemistry and Molecular and Cell Biology, Howard Hughes Medical Institute, University of California, Berkeley, CA 94720 (USA)
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26
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Siegbahn A, Manner S, Persson A, Tykesson E, Holmqvist K, Ochocinska A, Rönnols J, Sundin A, Mani K, Westergren-Thorsson G, Widmalm G, Ellervik U. Rules for priming and inhibition of glycosaminoglycan biosynthesis; probing the β4GalT7 active site. Chem Sci 2014. [DOI: 10.1039/c4sc01244e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Xylose is the optimal substrate for β4GalT7, an essential enzyme in GAG biosynthesis, but analogs act as effective inhibitors.
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Affiliation(s)
- Anna Siegbahn
- Centre for Analysis and Synthesis
- Centre for Chemistry and Chemical Engineering
- Lund University
- SE-221 00 Lund, Sweden
| | - Sophie Manner
- Centre for Analysis and Synthesis
- Centre for Chemistry and Chemical Engineering
- Lund University
- SE-221 00 Lund, Sweden
| | - Andrea Persson
- Centre for Analysis and Synthesis
- Centre for Chemistry and Chemical Engineering
- Lund University
- SE-221 00 Lund, Sweden
- Department of Experimental Medical Science
| | - Emil Tykesson
- Department of Experimental Medical Science
- Lund University
- SE-221 00 Lund, Sweden
| | - Karin Holmqvist
- Centre for Analysis and Synthesis
- Centre for Chemistry and Chemical Engineering
- Lund University
- SE-221 00 Lund, Sweden
| | - Agata Ochocinska
- Centre for Analysis and Synthesis
- Centre for Chemistry and Chemical Engineering
- Lund University
- SE-221 00 Lund, Sweden
| | - Jerk Rönnols
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm, Sweden
| | - Anders Sundin
- Centre for Analysis and Synthesis
- Centre for Chemistry and Chemical Engineering
- Lund University
- SE-221 00 Lund, Sweden
| | - Katrin Mani
- Department of Experimental Medical Science
- Lund University
- SE-221 00 Lund, Sweden
| | | | - Göran Widmalm
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- SE-106 91 Stockholm, Sweden
| | - Ulf Ellervik
- Centre for Analysis and Synthesis
- Centre for Chemistry and Chemical Engineering
- Lund University
- SE-221 00 Lund, Sweden
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27
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van Wijk XMR, van Kuppevelt TH. Heparan sulfate in angiogenesis: a target for therapy. Angiogenesis 2013; 17:443-62. [PMID: 24146040 DOI: 10.1007/s10456-013-9401-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 10/15/2013] [Indexed: 01/02/2023]
Abstract
Heparan sulfate (HS), a long linear polysaccharide of alternating disaccharide residues, interacts with a wide variety of proteins, including many angiogenic factors. The involvement of HS in signaling of pro-angiogenic factors (e.g. vascular endothelial growth factor and fibroblast growth factor 2), as well as interaction with anti-angiogenic factors (e.g. endostatin), warrants its role as an important modifier of (tumor) angiogenesis. This review summarizes our current understanding of the role of HS in angiogenic growth factor signaling, and discusses therapeutic strategies to target HS and modulate angiogenesis.
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Affiliation(s)
- Xander M R van Wijk
- Department of Biochemistry (280), Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, PO. Box 9101, 6500 HB, Nijmegen, The Netherlands
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28
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Nguyen TKN, Tran VM, Sorna V, Eriksson I, Kojima A, Koketsu M, Loganathan D, Kjellén L, Dorsky RI, Chien CB, Kuberan B. Dimerized glycosaminoglycan chains increase FGF signaling during zebrafish development. ACS Chem Biol 2013; 8:939-48. [PMID: 23614643 DOI: 10.1021/cb400132r] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Proteoglycans (PGs) modulate numerous signaling pathways during development through binding of their glycosaminoglycan (GAG) side chains to various signaling molecules, including fibroblast growth factors (FGFs). A majority of PGs possess two or more GAG side chains, suggesting that GAG multivalency is imperative for biological functions in vivo. However, only a few studies have examined the biological significance of GAG multivalency. In this report, we utilized a library of bis- and tris-xylosides that produce two and three GAG chains on the same scaffold, respectively, thus mimicking PGs, to examine the importance of GAG valency and chain type in regulating FGF/FGFR interactions in vivo in zebrafish. A number of bis- and tris-xylosides, but not mono-xylosides, caused an elongation phenotype upon their injection into embryos. In situ hybridization showed that elongated embryos have elevated expression of the FGF target gene mkp3 but unchanged expression of reporters for other pathways, indicating that FGF/FGFR signaling was specifically hyperactivated. In support of this observation, elongation can be reversed by the tyrosine kinase inhibitor SU5402, mRNA for the FGFR antagonist sprouty4, or FGF8 morpholino. Endogenous GAGs seem to be unaffected after xyloside treatment, suggesting that this is a gain-of-function phenotype. Furthermore, expression of a multivalent but not a monovalent GAG containing syndecan-1 proteoglycan recapitulates the elongation phenotype observed with the bivalent xylosides. On the basis of these in vivo findings, we propose a new model for GAG/FGF/FGFR interactions in which dimerized GAG chains can activate FGF-mediated signal transduction pathways.
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Affiliation(s)
- Thao K. N. Nguyen
- Departments of Medicinal Chemistry
and Bioengineering, University of Utah,
Salt Lake City, Utah, United States
| | - Vy M. Tran
- Departments of Medicinal Chemistry
and Bioengineering, University of Utah,
Salt Lake City, Utah, United States
| | - Venkataswamy Sorna
- Department of Chemistry, Indian Institute of Technology, Madras, Chennai 600
036, India
| | - Inger Eriksson
- Department of
Medical Biochemistry
and Microbiology, Biomedical Center, Uppsala University, Uppsala, Sweden
| | - Akinori Kojima
- Department
of Materials Science
and Technology, Gifu University, Gifu,
Japan
| | - Mamoru Koketsu
- Department
of Materials Science
and Technology, Gifu University, Gifu,
Japan
| | | | - Lena Kjellén
- Department of
Medical Biochemistry
and Microbiology, Biomedical Center, Uppsala University, Uppsala, Sweden
| | | | | | - Balagurunathan Kuberan
- Departments of Medicinal Chemistry
and Bioengineering, University of Utah,
Salt Lake City, Utah, United States
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29
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Kapoor M, Burgess DJ. Cellular uptake mechanisms of novel anionic siRNA lipoplexes. Pharm Res 2012; 30:1161-75. [PMID: 23239010 DOI: 10.1007/s11095-012-0952-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Accepted: 11/30/2012] [Indexed: 02/02/2023]
Abstract
PURPOSE To investigate cellular uptake pathways of novel anionic siRNA-lipoplexes as a function of formulation composition. METHODS Anionic formulations with anionic lipid/Ca(2+)/siRNA ratio of 1.3/2.5/1 (AF1) and 1.3/0.3/1 (AF2) were utilized. Uptake mechanisms were investigated using uptake inhibition and co-localization approaches in breast cancer cells. Actin-mediated uptake was investigated using actin polymerization and rearrangement assays. Silencing efficiency and endosomal escaping capability of lipoplexes were evaluated. The cationic formulation Lipofectamine-2000 was used as a control. RESULTS Anionic lipoplexes entered the breast cancer cells via endocytosis specifically via macropinocytosis or via both macropinocytosis and HSPG (heparin sulfate proteoglycans) pathways, depending on the Ca(2+)/siRNA ratio. Additionally, uptake of these lipoplexes was both microtubule and actin dependent. The control cationic lipid-siRNA complexes (Lipofectamine-2000) were internalized via both endocytic (phagocytosis, HSPG) and non-endocytic (membrane fusion) pathways. Their uptake was microtubule independent but actin dependent. Silencing efficiency of the AF2 formulation was negligible mainly due to poor endosomal release (rate-limiting step). CONCLUSIONS Formulation composition significantly influences the internalization mechanism of anionic lipoplexes. Uptake mechanism together with formulation bioactivity helped in identification of the rate-limiting steps to efficient siRNA delivery. Such studies are extremely useful for formulation optimization to achieve enhanced intracellular delivery of nucleic acids.
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Affiliation(s)
- Mamta Kapoor
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, 69 N Eagleville Rd, Unit 3092, Storrs, Connecticut 06269, USA
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30
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Glycosylation of Nα-lauryl-O-(β-D-xylopyranosyl)-L-serinamide as a saccharide primer in cells. Carbohydr Res 2012; 361:33-40. [PMID: 22960263 DOI: 10.1016/j.carres.2012.08.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 08/08/2012] [Accepted: 08/09/2012] [Indexed: 11/23/2022]
Abstract
N(α)-Lauryl-O-(β-D-xylopyranosyl)-L-serinamide (Xyl-Ser-C12) was synthesized as a saccharide primer to obtain oligosaccharides of glycosaminoglycan using the glycan biosynthetic potential of mouse osteosarcoma FBJ-S1 cells and Chinese hamster ovary (CHO) cells. The glycosylated products secreted into the culture medium were collected and analyzed by liquid chromatography-mass spectrometry and glycosidase digestion. The structure of the Xyl-Ser-C12 derivatives was investigated. Several glycosaminoglycan-type oligosaccharides, such as GalNAc-(GlcA-GlcNAc)(n)-GlcA-Gal-Gal-Xyl-Ser-C12, were detected, and identified as intermediates of the biosynthesis of heparan sulfate glycosaminoglycans. Xyl-Ser-C12 exhibited greater acceptor activity for the glycosylation of glycosaminoglycan-type oligosaccharides than p-nitrophenyl-β-D-xylopyranoside.
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Vassal-Stermann E, Duranton A, Black AF, Azadiguian G, Demaude J, Lortat-Jacob H, Breton L, Vivès RR. A New C-Xyloside induces modifications of GAG expression, structure and functional properties. PLoS One 2012; 7:e47933. [PMID: 23110134 PMCID: PMC3482234 DOI: 10.1371/journal.pone.0047933] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Accepted: 09/24/2012] [Indexed: 11/19/2022] Open
Abstract
Proteoglycans (PGs) are critically involved in major cellular processes. Most PG activities are due to the large interactive properties of their glycosaminoglycan (GAG) polysaccharide chains, whose expression and fine structural features are tightly controlled by a complex and highly regulated biosynthesis machinery. Xylosides are known to bypass PG-associated GAG biosynthesis and prime the assembly of free polysaccharide chains. These are, therefore, attractive molecules to interfere with GAG expression and function. Recently, we have developed a new xyloside derivative, C-Xyloside, that shares classical GAG-inducing xyloside activities while exhibiting improved metabolic stability. We have previously shown that C-Xyloside had beneficial effects on skin homoeostasis/regeneration using a number of models, but its precise effects on GAG expression and fine structure remained to be addressed. In this study, we have therefore investigated this in details, using a reconstructed dermal tissue as model. Our results first confirmed that C-Xyloside strongly enhanced synthesis of GAG chains, but also induced significant changes in their structure. C-Xyloside primed GAGs were exclusively chondroitin/dermatan sulfate (CS/DS) that featured reduced chain size, increased O-sulfation, and changes in iduronate content and distribution. Surprisingly, C-Xyloside also affected PG-borne GAGs, the main difference being observed in CS/DS 4-O/6-O-sulfation ratio. Such changes were found to affect the biological properties of CS/DS, as revealed by the significant reduction in binding to Hepatocyte Growth Factor observed upon C-Xyloside treatment. Overall, this study provides new insights into the effect of C-Xyloside on GAG structure and activities, which opens up perspectives and applications of such compound in skin repair/regeneration. It also provides a new illustration about the use of xylosides as tools for modifying GAG fine structure/function relationships.
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Affiliation(s)
- Emilie Vassal-Stermann
- Institut de Biologie Structurale Jean-Pierre Ebel, Unité Mixte de Recherche (UMR) 5075, CNRS-CEA-Université Joseph Fourier, Grenoble, France
| | | | | | | | | | - Hugues Lortat-Jacob
- Institut de Biologie Structurale Jean-Pierre Ebel, Unité Mixte de Recherche (UMR) 5075, CNRS-CEA-Université Joseph Fourier, Grenoble, France
| | | | - Romain R. Vivès
- Institut de Biologie Structurale Jean-Pierre Ebel, Unité Mixte de Recherche (UMR) 5075, CNRS-CEA-Université Joseph Fourier, Grenoble, France
- * E-mail:
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32
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No-reflow phenomenon and endothelial glycocalyx of microcirculation. Biochem Res Int 2011; 2012:859231. [PMID: 22191033 PMCID: PMC3235431 DOI: 10.1155/2012/859231] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 09/20/2011] [Indexed: 12/27/2022] Open
Abstract
The progress in reperfusion therapy dictated the necessity for developing new tools and procedures for adjacent/additional therapy of acute cardiovascular disorders. The adjacent therapy is targeted on the damage of the microcirculation, leading to the unfavorable prognosis for the patients. The no-reflow phenomenon holds special place in the multifactorial etiology of the microcirculation disorders, offering a new challenge in treating the patients associated with ST-segment elevation on ECG at myocardial infarction. One of the numerous causes of no-reflow, the influence of the endothelial glycocalyx of the microcirculation, is analyzed. The results obtained in the studies of the endothelial glycocalyx ultrastructure are generalized, the effect that the fragments of the glycocalyx glycosaminoglycans have on the function of the vascular wall is demonstrated. The trends in searching for correlations between the thickness of the capillary glycocalyx and the cardiovascular disease risk are noted.
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33
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Siegbahn A, Aili U, Ochocinska A, Olofsson M, Rönnols J, Mani K, Widmalm G, Ellervik U. Synthesis, conformation and biology of naphthoxylosides. Bioorg Med Chem 2011; 19:4114-26. [DOI: 10.1016/j.bmc.2011.05.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Revised: 04/29/2011] [Accepted: 05/04/2011] [Indexed: 10/18/2022]
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34
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Yang B, Weyers A, Baik JY, Sterner E, Sharfstein S, Mousa SA, Zhang F, Dordick JS, Linhardt RJ. Ultra-performance ion-pairing liquid chromatography with on-line electrospray ion trap mass spectrometry for heparin disaccharide analysis. Anal Biochem 2011; 415:59-66. [PMID: 21530482 DOI: 10.1016/j.ab.2011.04.003] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 04/01/2011] [Accepted: 04/04/2011] [Indexed: 11/29/2022]
Abstract
A high-resolution method for the separation and analysis of disaccharides prepared from heparin and heparan sulfate (HS) using heparin lyases is described. Ultra-performance liquid chromatography in a reverse-phase ion-pairing mode efficiently separates eight heparin/HS disaccharides. The disaccharides can then be detected and quantified using electrospray ionization mass spectrometry. This method is particularly useful in the analysis of small amounts of biological samples, including cells, tissues, and biological fluids, because it provides high sensitivity without being subject to interference from proteins, peptides, and other sample impurities.
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Affiliation(s)
- Bo Yang
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
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35
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Tsuzuki Y, Nguyen TKN, Garud DR, Kuberan B, Koketsu M. 4-Deoxy-4-fluoro-xyloside derivatives as inhibitors of glycosaminoglycan biosynthesis. Bioorg Med Chem Lett 2010; 20:7269-73. [DOI: 10.1016/j.bmcl.2010.10.085] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Revised: 10/06/2010] [Accepted: 10/18/2010] [Indexed: 01/08/2023]
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36
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Yoon BY, Choi BD, Bae DW, Choi YJ. Extraction of Glycosaminoglycan from Sea Hare, Aplysia kurodai, and Its Functional Properties 2. Structural Properties of Purified Glycosaminoglycan. ACTA ACUST UNITED AC 2010. [DOI: 10.3746/jkfn.2010.39.11.1647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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37
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Raman K, Ninomiya M, Nguyen TKN, Tsuzuki Y, Koketsu M, Kuberan B. Novel glycosaminoglycan biosynthetic inhibitors affect tumor-associated angiogenesis. Biochem Biophys Res Commun 2010; 404:86-9. [PMID: 21094131 DOI: 10.1016/j.bbrc.2010.11.069] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Accepted: 11/15/2010] [Indexed: 02/06/2023]
Abstract
Heparan sulfate proteoglycans (HSPGs) are essential players in several steps of tumor-associated angiogenesis. As co-receptors for several pro-angiogenic factors such as VEGF and FGF, HSPGs regulate receptor-ligand interactions and play a vital role in signal transduction. Previously, we have employed an enzymatic strategy to show the importance of cell surface HSPGs in endothelial tube formation in vitro. We have recently found several fluoro-xylosides that can selectively inhibit proteoglycan synthesis in endothelial cells. The current study demonstrates that these fluoro-xylosides are effective inhibitors of endothelial tube formation in vitro using a matrigel based assay to simulate tumor-associated angiogenesis. These first generation scaffolds offer a promising stepping-stone to the discovery of more potent fluoro-xylosides that can effectively neutralize tumor growth.
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Affiliation(s)
- Karthik Raman
- Department of Bioengineering, University of Utah, Salt Lake City, UT 84112, USA
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Abstract
Heparan sulfate proteoglycans (HSPGs) play vital roles in every step of tumor progression allowing cancer cells to proliferate, escape from immune response, invade neighboring tissues, and metastasize to distal sites away from the primary site. Several cancers including breast, lung, brain, pancreatic, skin, and colorectal cancers show aberrant modulation of several key HS biosynthetic enzymes such as 3-O Sulfotransferase and 6-O Sulfotransferase, and also catabolic enzymes such as HSulf-1, HSulf-2 and heparanase. The resulting tumor specific HS fine structures assist cancer cells to breakdown ECM to spread, misregulate signaling pathways to facilitate their proliferation, promote angiogenesis to receive nutrients, and protect themselves against natural killer cells. This review focuses on the changes in the expression of HS biosynthetic and catabolic enzymes in several cancers, the resulting changes in HS fine structures, and the effects of these tumor specific HS signatures on promoting invasion, proliferation, and metastasis. It is possible to retard tumor progression by modulating the deregulated biosynthetic and catabolic pathways of HS chains through novel chemical biology approaches.
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Affiliation(s)
- Karthik Raman
- Department of Bioengineering, University of Utah, Salt Lake City, UT 84112, USA
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