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Jiang H, Liu M, Qin Y, Zhang H. miR-9 promotes canine endothelial-like cell migration by targeting COL15A1. Vet Med Sci 2024; 10:e1339. [PMID: 38109263 PMCID: PMC10766037 DOI: 10.1002/vms3.1339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 11/16/2023] [Accepted: 12/03/2023] [Indexed: 12/20/2023] Open
Abstract
BACKGROUND Endothelial cell migration is the initial stage of angiogenesis. In previous studies, miR-9 has been found to regulate angiogenesis and cell migration in human medicine. OBJECTIVES This study aimed to reveal the regulatory effect of miR-9 on canine endothelial cell migration. METHODS Embryonic canine ventricle myocardium tissues were collected and induced to differentiate into endothelial-like cells (ELCs). A transwell and invasion assay were used to evaluate the impact of miR-9 on the migration capacity of ELCs, after which a luciferase reporter assay, western blotting, RNA sequencing and reverse transcription-polymerase chain reaction were conducted to explore the regulatory mechanism. RESULTS Our results showed that we successfully induced the primary cells derived from canine cardiac embryo tissues into ELCs. MiR-9 also promoted the migration and invasion of canine ELCs, and inhibited the expression of collagen XV, an angiogenic inhibitor, at the translational level by targeting the 3' untranslated region of COL15A1 gene. Furthermore, RNA sequencing showed that overexpression of miR-9 impacted several signalling pathways and eight genes involved in angiogenesis and cell migration in canine ELCs. CONCLUSIONS These findings suggest that miR-9 enhances the migration of canine ELCs and may serve as a potential diagnostic and therapeutic target for canine diseases involved in endothelial cells migration and angiogenesis, but more further studies are needed.
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Affiliation(s)
- Heng Jiang
- Institute of Tropical Agriculture and ForestryHainan UniversityHainanPR China
| | - Mengmeng Liu
- Institute of Tropical Agriculture and ForestryHainan UniversityHainanPR China
- One Health InstituteHainan UniversityHainanPR China
| | - Yao Qin
- Institute of Tropical Agriculture and ForestryHainan UniversityHainanPR China
| | - Hong Zhang
- Institute of Tropical Agriculture and ForestryHainan UniversityHainanPR China
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2
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Hoffman E, Song Y, Zhang F, Asarian L, Downs I, Young B, Han X, Ouyang Y, Xia K, Linhardt RJ, Weiss DJ. Regional and disease-specific glycosaminoglycan composition and function in decellularized human lung extracellular matrix. Acta Biomater 2023; 168:388-399. [PMID: 37433361 PMCID: PMC10528722 DOI: 10.1016/j.actbio.2023.06.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/16/2023] [Accepted: 06/28/2023] [Indexed: 07/13/2023]
Abstract
Decellularized lung scaffolds and hydrogels are increasingly being utilized in ex vivo lung bioengineering. However, the lung is a regionally heterogenous organ with proximal and distal airway and vascular compartments of different structures and functions that may be altered as part of disease pathogenesis. We previously described decellularized normal whole human lung extracellular matrix (ECM) glycosaminoglycan (GAG) composition and functional ability to bind matrix-associated growth factors. We now determine differential GAG composition and function in airway, vascular, and alveolar-enriched regions of decellularized lungs obtained from normal, chronic obstructive pulmonary disease (COPD), and idiopathic pulmonary fibrosis (IPF) patients. Significant differences were observed in heparan sulfate (HS), chondroitin sulfate (CS), and hyaluronic acid (HA) content and CS/HS compositions between both different lung regions and between normal and diseased lungs. Surface plasmon resonance demonstrated that HS and CS from decellularized normal and COPD lungs similarly bound fibroblast growth factor 2, but that binding was decreased in decellularized IPF lungs. Binding of transforming growth factor β to CS was similar in all three groups but binding to HS was decreased in IPF compared to normal and COPD lungs. In addition, cytokines dissociate faster from the IPF GAGs than their counterparts. The differences in cytokine binding features of IPF GAGs may result from different disaccharide compositions. The purified HS from IPF lung is less sulfated than that from other lungs, and the CS from IPF contains more 6-O-sulfated disaccharide. These observations provide further information for understanding functional roles of ECM GAGs in lung function and disease. STATEMENT OF SIGNIFICANCE: Lung transplantation remains limited due to donor organ availability and need for life-long immunosuppressive medication. One solution, the ex vivo bioengineering of lungs via de- and recellularization has not yet led to a fully functional organ. Notably, the role of glycosaminoglycans (GAGs) remaining in decellularized lung scaffolds is poorly understood despite their important effects on cell behaviors. We have previously investigated residual GAG content of native and decellularized lungs and their respective functionality, and role during scaffold recellularization. We now present a detailed characterization of GAG and GAG chain content and function in different anatomical regions of normal diseased human lungs. These are novel and important observations that further expand knowledge about functional GAG roles in lung biology and disease.
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Affiliation(s)
- Evan Hoffman
- Larner College of Medicine, University of Vermont, 149 Beaumont Avenue, Health Science Research Facility (HSRF) 226, Burlington, VT 05405, USA
| | - Yuefan Song
- Rensselaer Polytechnic Institute, Center for Biotechnology and Interdisciplinary Studies, Troy, NY, USA
| | - Fuming Zhang
- Rensselaer Polytechnic Institute, Center for Biotechnology and Interdisciplinary Studies, Troy, NY, USA
| | - Loredana Asarian
- Larner College of Medicine, University of Vermont, 149 Beaumont Avenue, Health Science Research Facility (HSRF) 226, Burlington, VT 05405, USA
| | - Isaac Downs
- Larner College of Medicine, University of Vermont, 149 Beaumont Avenue, Health Science Research Facility (HSRF) 226, Burlington, VT 05405, USA
| | - Brad Young
- Larner College of Medicine, University of Vermont, 149 Beaumont Avenue, Health Science Research Facility (HSRF) 226, Burlington, VT 05405, USA
| | - Xiaorui Han
- Rensselaer Polytechnic Institute, Center for Biotechnology and Interdisciplinary Studies, Troy, NY, USA
| | - Yilan Ouyang
- Rensselaer Polytechnic Institute, Center for Biotechnology and Interdisciplinary Studies, Troy, NY, USA
| | - Ke Xia
- Rensselaer Polytechnic Institute, Center for Biotechnology and Interdisciplinary Studies, Troy, NY, USA
| | - Robert J Linhardt
- Rensselaer Polytechnic Institute, Center for Biotechnology and Interdisciplinary Studies, Troy, NY, USA
| | - Daniel J Weiss
- Larner College of Medicine, University of Vermont, 149 Beaumont Avenue, Health Science Research Facility (HSRF) 226, Burlington, VT 05405, USA.
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3
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Ebstein SY, Rafique A, Zhou Y, Krasco A, Montalvo-Ortiz W, Yu L, Custodio L, Adam RC, Bloch N, Lee K, Adewale F, Vergata D, Luz A, Coquery S, Daniel B, Ullman E, Franklin MC, Hermann A, Huang T, Olson W, Davis S, Murphy AJ, Sleeman MA, Wei J, Skokos D. VSIG4 interaction with heparan sulfates inhibits VSIG4-complement binding. Glycobiology 2023; 33:591-604. [PMID: 37341346 PMCID: PMC10426322 DOI: 10.1093/glycob/cwad050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 06/12/2023] [Accepted: 06/20/2023] [Indexed: 06/22/2023] Open
Abstract
V-set and immunoglobulin domain-containing 4 (VSIG4) is a complement receptor of the immunoglobulin superfamily that is specifically expressed on tissue resident macrophages, and its many reported functions and binding partners suggest a complex role in immune function. VSIG4 is reported to have a role in immune surveillance as well as in modulating diverse disease phenotypes such as infections, autoimmune conditions, and cancer. However, the mechanism(s) governing VSIG4's complex, context-dependent role in immune regulation remains elusive. Here, we identify cell surface and soluble glycosaminoglycans, specifically heparan sulfates, as novel binding partners of VSIG4. We demonstrate that genetic deletion of heparan sulfate synthesis enzymes or cleavage of cell-surface heparan sulfates reduced VSIG4 binding to the cell surface. Furthermore, binding studies demonstrate that VSIG4 interacts directly with heparan sulfates, with a preference for highly sulfated moieties and longer glycosaminoglycan chains. To assess the impact on VSIG4 biology, we show that heparan sulfates compete with known VSIG4 binding partners C3b and iC3b. Furthermore, mutagenesis studies indicate that this competition occurs through overlapping binding epitopes for heparan sulfates and complement on VSIG4. Together these data suggest a novel role for heparan sulfates in VSIG4-dependent immune modulation.
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Affiliation(s)
- Sarah Y Ebstein
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Ashique Rafique
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Yi Zhou
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Amanda Krasco
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Welby Montalvo-Ortiz
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Lola Yu
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Luisaidy Custodio
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Rene C Adam
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Nicolin Bloch
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Ken Lee
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Funmilola Adewale
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Dominic Vergata
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Antonio Luz
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Sebastien Coquery
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Benjamin Daniel
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Erica Ullman
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Matthew C Franklin
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Aynur Hermann
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Tammy Huang
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - William Olson
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Samuel Davis
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Andrew J Murphy
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Matthew A Sleeman
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Joyce Wei
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Dimitris Skokos
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
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4
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Li M, Pedersen LC, Xu D. Targeting heparan sulfate-protein interactions with oligosaccharides and monoclonal antibodies. Front Mol Biosci 2023; 10:1194293. [PMID: 37275960 PMCID: PMC10235622 DOI: 10.3389/fmolb.2023.1194293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 05/10/2023] [Indexed: 06/07/2023] Open
Abstract
Heparan sulfate-binding proteins (HSBPs) are structurally diverse extracellular and membrane attached proteins that interact with HS under normal physiological conditions. Interactions with HS offer an additional level of control over the localization and function of HSBPs, which enables them to behave in a more refined manner. Because all cell signaling events start at the cell membrane, and cell-cell communication relies on translocation of soluble factors across the extracellular matrix, HS occupies an apical position in cellular signal transduction by interacting with hundreds of growth factors, cytokines, chemokines, enzymes, enzyme inhibitors, receptors and adhesion molecules. These extracellular and membrane proteins can play important roles in physiological and pathological conditions. For most HS-binding proteins, the interaction with HS represents an essential element in regulating their normal physiological functions. Such dependence on HS suggests that manipulating HS-protein interactions could be explored as a therapeutic strategy to selectively antagonize/activate HS-binding proteins. In this review, we will discuss current understanding of the diverse nature of HS-HSBP interactions, and the latest advancements in targeting the HS-binding site of HSBPs using structurally-defined HS oligosaccharides and monoclonal antibodies.
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Affiliation(s)
- Miaomiao Li
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, the State University of New York, Buffalo, NY, United States
| | - Lars C. Pedersen
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, United States
| | - Ding Xu
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, the State University of New York, Buffalo, NY, United States
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5
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Kaur G, Harris NR. Endothelial glycocalyx in retina, hyperglycemia, and diabetic retinopathy. Am J Physiol Cell Physiol 2023; 324:C1061-C1077. [PMID: 36939202 PMCID: PMC10125029 DOI: 10.1152/ajpcell.00188.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 02/28/2023] [Accepted: 03/16/2023] [Indexed: 03/21/2023]
Abstract
The endothelial glycocalyx (EG) is a meshlike network present on the apical surface of the endothelium. Membrane-bound proteoglycans, the major backbone molecules of the EG, consist of glycosaminoglycans attached to core proteins. In addition to maintaining the integrity of the endothelial barrier, the EG regulates inflammation and perfusion and acts as a mechanosensor. The loss of the EG can cause endothelial dysfunction and drive the progression of vascular diseases including diabetic retinopathy. Therefore, the EG presents a novel therapeutic target for treatment of vascular complications. In this review article, we provide an overview of the structure and function of the EG in the retina. Our particular focus is on hyperglycemia-induced perturbations in the glycocalyx structure in the retina, potential underlying mechanisms, and clinical trials studying protective treatments against degradation of the EG.
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Affiliation(s)
- Gaganpreet Kaur
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States
| | - Norman R Harris
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States
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6
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Warashina S, Sato H, Zouda M, Takahashi M, Wada Y, Passioura T, Suga H, Watanabe Y, Matsumoto K, Mukai H. Two-Chain Mature Hepatocyte Growth Factor-Specific Positron Emission Tomography Imaging in Tumors Using 64Cu-Labeled HiP-8, a Nonstandard Macrocyclic Peptide Probe. Mol Pharm 2023; 20:2029-2038. [PMID: 36862642 DOI: 10.1021/acs.molpharmaceut.2c01020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Two-chain hepatocyte growth factor (tcHGF), the mature form of HGF, is associated with malignancy and anticancer drug resistance; therefore, its quantification is an important indicator for cancer diagnosis. In tumors, activated tcHGF hardly discharges into the systemic circulation, indicating that tcHGF is an excellent target for molecular imaging using positron emission tomography (PET). We recently discovered HGF-inhibitory peptide-8 (HiP-8) that binds specifically to human tcHGF with nanomolar affinity. The purpose of this study was to investigate the usefulness of HiP-8-based PET probes in human HGF knock-in humanized mice. 64Cu-labeled HiP-8 molecules were synthesized using a cross-bridged cyclam chelator, CB-TE1K1P. Radio-high-performance liquid chromatography-based metabolic stability analyses showed that more than 90% of the probes existed in intact form in blood at least for 15 min. In PET studies, significantly selective visualization of hHGF-overexpressing tumors versus hHGF-negative tumors was observed in double-tumor-bearing mice. The accumulation of labeled HiP-8 into the hHGF-overexpressing tumors was significantly reduced by competitive inhibition. In addition, the radioactivity and distribution of phosphorylated MET/HGF receptor were colocalized in tissues. These results demonstrate that the 64Cu-labeled HiP-8 probes are suitable for tcHGF imaging in vivo, and secretory proteins like tcHGF can be a target for PET imaging.
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Affiliation(s)
- Shota Warashina
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Hiroki Sato
- Division of Tumor Dynamics and Regulation, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Maki Zouda
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Maiko Takahashi
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Yasuhiro Wada
- Laboratory for Pathophysiological and Health Science, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Toby Passioura
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - Hiroaki Suga
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - Yasuyoshi Watanabe
- Laboratory for Pathophysiological and Health Science, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Kunio Matsumoto
- Division of Tumor Dynamics and Regulation, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan.,WPI-Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma, Kanazawa, Ishikawa 920-1192, Japan
| | - Hidefumi Mukai
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-Minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan.,Department of Pharmaceutical Informatics, Graduate School of Biomedical Science, Nagasaki University, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan
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7
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Noborn F, Sterky FH. Role of neurexin heparan sulfate in the molecular assembly of synapses - expanding the neurexin code? FEBS J 2023; 290:252-265. [PMID: 34699130 DOI: 10.1111/febs.16251] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 09/21/2021] [Accepted: 10/25/2021] [Indexed: 02/05/2023]
Abstract
Synapses are the minimal information processing units of the brain and come in many flavors across distinct circuits. The shape and properties of a synapse depend on its molecular organisation, which is thought to largely depend on interactions between cell adhesion molecules across the synaptic cleft. An established example is that of presynaptic neurexins and their interactions with structurally diverse postsynaptic ligands: the diversity of neurexin isoforms that arise from alternative promoters and alternative splicing specify synaptic properties by dictating ligand preference. The recent finding that a majority of neurexin isoforms exist as proteoglycans with a single heparan sulfate (HS) polysaccharide adds to this complexity. Sequence motifs within the HS polysaccharide may differ between neuronal cell types to contribute specificity to its interactions, thereby expanding the coding capacity of neurexin diversity. However, an expanding number of HS-binding proteins have been found capable to recruit neurexins via the HS chain, challenging the concept of a code provided by neurexin splice isoforms. Here we discuss the possible roles of the neurexin HS in light of what is known from other HS-protein interactions, and propose a model for how the neurexin HS polysaccharide may contribute to synaptic assembly. We also discuss how the neurexin HS may be regulated by co-secreted carbonic anhydrase-related and FAM19A proteins, and highlight some key issues that should be resolved to advance the field.
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Affiliation(s)
- Fredrik Noborn
- Department of Laboratory Medicine, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Fredrik H Sterky
- Department of Laboratory Medicine, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden.,Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden.,Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
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8
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Kaur G, Song Y, Xia K, McCarthy K, Zhang F, Linhardt RJ, Harris NR. Effect of high glucose on glycosaminoglycans in cultured retinal endothelial cells and rat retina. Glycobiology 2022; 32:720-734. [PMID: 35552402 PMCID: PMC9280546 DOI: 10.1093/glycob/cwac029] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/07/2022] [Accepted: 04/29/2022] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION The endothelial glycocalyx regulates vascular permeability, inflammation, and coagulation, and acts as a mechanosensor. The loss of glycocalyx can cause endothelial injury and contribute to several microvascular complications and, therefore, may promote diabetic retinopathy. Studies have shown a partial loss of retinal glycocalyx in diabetes, but with few molecular details of the changes in glycosaminoglycan (GAG) composition. Therefore, the purpose of our study was to investigate the effect of hyperglycemia on GAGs of the retinal endothelial glycocalyx. METHODS GAGs were isolated from rat retinal microvascular endothelial cells (RRMECs), media, and retinas, followed by liquid chromatography-mass spectrometry assays. Quantitative real-time polymerase chain reaction was used to study mRNA transcripts of the enzymes involved in GAG biosynthesis. RESULTS AND CONCLUSIONS Hyperglycemia significantly increased the shedding of heparan sulfate (HS), chondroitin sulfate (CS), and hyaluronic acid (HA). There were no changes to the levels of HS in RRMEC monolayers grown in high-glucose media, but the levels of CS and HA decreased dramatically. Similarly, while HA decreased in the retinas of diabetic rats, the total GAG and CS levels increased. Hyperglycemia in RRMECs caused a significant increase in the mRNA levels of the enzymes involved in GAG biosynthesis (including EXTL-1,2,3, EXT-1,2, ChSY-1,3, and HAS-2,3), with these increases potentially being compensatory responses to overall glycocalyx loss. Both RRMECs and retinas of diabetic rats exhibited glucose-induced alterations in the disaccharide compositions and sulfation of HS and CS, with the changes in sulfation including N,6-O-sulfation on HS and 4-O-sulfation on CS.
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Affiliation(s)
- Gaganpreet Kaur
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA 71103, USA
| | - Yuefan Song
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Ke Xia
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Kevin McCarthy
- Department of Cellular Biology and Anatomy, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA 71103, USA
| | - Fuming Zhang
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Robert J Linhardt
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Norman R Harris
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA 71103, USA
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9
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Chen J, Jiang L, Yu XH, Hu M, Zhang YK, Liu X, He P, Ouyang X. Endocan: A Key Player of Cardiovascular Disease. Front Cardiovasc Med 2022; 8:798699. [PMID: 35071362 PMCID: PMC8766991 DOI: 10.3389/fcvm.2021.798699] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/14/2021] [Indexed: 01/21/2023] Open
Abstract
Endothelial dysfunction is considered to be an early change in atherosclerosis. Endocan, also known as endothelial cell specific molecule-1, is a soluble proteoglycan mainly secreted by endothelial cells. Inflammatory factors such as IL-1β and TNF-α can up regulate the expression of endocan and then affect the expression of cell adhesion molecules, such as ICAM-1 and VCAM-1, which play an important role in promoting leukocyte migration and inflammatory response. Elevated plasma levels of endocan may reflect endothelial activation and dysfunction, and is considered to be a potential immuno-inflammatory marker that may be related to cardiovascular disease. In the case of hypertension, diabetes, angina pectoris and acute myocardial infarction, the increase or decrease of serum endocan levels is of great significance. Here, we reviewed the current research on endocan, and emphasis its possible clinical value as a prognostic marker of cardiovascular disease. Endocan may be a useful biomarker for the prognosis of cardiovascular disease, but more research is needed on its mechanism of action.
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Affiliation(s)
- Jinzhi Chen
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Department of Physiology, Basic Medical School, Hengyang Medical College, The Neuroscience Institute, University of South China, Hengyang, China
| | - Liping Jiang
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Department of Physiology, Basic Medical School, Hengyang Medical College, The Neuroscience Institute, University of South China, Hengyang, China.,Clinical Drug Research Center, Hunan Taihe Hospital, Changsha, China
| | - Xiao-Hua Yu
- Institute of Clinical Medicine, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Mi Hu
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Department of Physiology, Basic Medical School, Hengyang Medical College, The Neuroscience Institute, University of South China, Hengyang, China
| | - Yang-Kai Zhang
- Hengyang Medical School, The Affiliated Changsha Central Hospital, University of South China, Hengyang, China
| | - Xin Liu
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Department of Physiology, Basic Medical School, Hengyang Medical College, The Neuroscience Institute, University of South China, Hengyang, China
| | - Pingping He
- School of Nursing, Hengyang Medical College, University of South China, Hengyang, China
| | - Xinping Ouyang
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Department of Physiology, Basic Medical School, Hengyang Medical College, The Neuroscience Institute, University of South China, Hengyang, China
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10
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Ehlers Danlos Syndrome with Glycosaminoglycan Abnormalities. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1348:235-249. [PMID: 34807422 DOI: 10.1007/978-3-030-80614-9_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Ehlers-Danlos syndrome (EDS) is a genetically and clinically heterogeneous group of connective tissue disorders that typically present with skin hyperextensibility, joint hypermobility, and tissue fragility. The major cause of EDS appears to be impaired biosynthesis and enzymatic modification of collagen. In this chapter, we discuss two types of EDS that are associated with proteoglycan abnormalities: spondylodysplastic EDS and musculocontractural EDS. Spondylodysplastic EDS is caused by pathogenic variants in B4GALT7 or B3GALT6, both of which encode key enzymes that initiate glycosaminoglycan synthesis. Musculocontractural EDS is caused by mutations in CHST14 or DSE, both of which encode enzymes responsible for the post-translational biosynthesis of dermatan sulfate. The clinical and molecular characteristics of both types of EDS are described in this chapter.
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11
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Hasan M, Khakzad H, Happonen L, Sundin A, Unge J, Mueller U, Malmström J, Westergren-Thorsson G, Malmström L, Ellervik U, Malmström A, Tykesson E. The structure of human dermatan sulfate epimerase 1 emphasizes the importance of C5-epimerization of glucuronic acid in higher organisms. Chem Sci 2021; 12:1869-1885. [PMID: 33815739 PMCID: PMC8006597 DOI: 10.1039/d0sc05971d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/04/2020] [Indexed: 01/21/2023] Open
Abstract
Dermatan sulfate epimerase 1 (DS-epi1, EC 5.1.3.19) catalyzes the conversion of d-glucuronic acid to l-iduronic acid on the polymer level, a key step in the biosynthesis of the glycosaminoglycan dermatan sulfate. Here, we present the first crystal structure of the catalytic domains of DS-epi1, solved at 2.4 Å resolution, as well as a model of the full-length luminal protein obtained by a combination of macromolecular crystallography and targeted cross-linking mass spectrometry. Based on docking studies and molecular dynamics simulations of the protein structure and a chondroitin substrate, we suggest a novel mechanism of DS-epi1, involving a His/double-Tyr motif. Our work uncovers detailed information about the domain architecture, active site, metal-coordinating center and pattern of N-glycosylation of the protein. Additionally, the structure of DS-epi1 reveals a high structural similarity to proteins from several families of bacterial polysaccharide lyases. DS-epi1 is of great importance in a range of diseases, and the structure provides a necessary starting point for design of active site inhibitors.
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Affiliation(s)
- Mahmudul Hasan
- Department of Biochemistry and Structural Biology , Lund University , Lund , Sweden
| | - Hamed Khakzad
- Equipe Signalisation Calcique et Infections Microbiennes , Ecole Normale Supérieure Paris-Saclay , 91190 Gif-sur-Yvette , France
- Institut National de la Santé et de la Recherche Médicale U1282 , 91190 Gif-sur-Yvette , France
| | - Lotta Happonen
- Department of Clinical Sciences , Lund University , Lund , Sweden
| | - Anders Sundin
- Department of Chemistry , Lund University , Lund , Sweden
| | - Johan Unge
- Department of Biological Chemistry , University of California Los Angeles , Los Angeles , CA 90095 , USA
| | - Uwe Mueller
- Macromolecular Crystallography Group , Helmholtz-Zentrum-Berlin für Materialien und Energie , Albert-Einstein Str. 15 , 12489 Berlin , Germany
| | - Johan Malmström
- Department of Clinical Sciences , Lund University , Lund , Sweden
| | | | - Lars Malmström
- Department of Clinical Sciences , Lund University , Lund , Sweden
| | - Ulf Ellervik
- Department of Chemistry , Lund University , Lund , Sweden
| | - Anders Malmström
- Department of Experimental Medical Science , Lund University , Lund , Sweden .
| | - Emil Tykesson
- Department of Experimental Medical Science , Lund University , Lund , Sweden .
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12
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Hirose T, Mizumoto S, Hashimoto A, Takahashi Y, Yoshizawa T, Nitahara-Kasahara Y, Takahashi N, Nakayama J, Takehana K, Okada T, Nomura Y, Yamada S, Kosho T, Watanabe T. Systematic investigation of the skin in Chst14-/- mice: A model for skin fragility in musculocontractural Ehlers-Danlos syndrome caused by CHST14 variants (mcEDS-CHST14). Glycobiology 2020; 31:137-150. [PMID: 32601684 DOI: 10.1093/glycob/cwaa058] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 06/02/2020] [Accepted: 06/13/2020] [Indexed: 02/05/2023] Open
Abstract
Loss-of-function variants in CHST14 cause a dermatan 4-O-sulfotransferase deficiency named musculocontractural Ehlers-Danlos syndrome-CHST14 (mcEDS-CHST14), resulting in complete depletion of the dermatan sulfate moiety of decorin glycosaminoglycan (GAG) chains, which is replaced by chondroitin sulfate. Recently, we uncovered structural alteration of GAG chains in the skin of patients with mcEDS-CHST14. Here, we conducted the first systematic investigation of Chst14 gene-deleted homozygote (Chst14-/-) mice. We used skin samples of wild-type (Chst14+/+) and Chst14-/- mice. Mechanical fragility of the skin was measured with a tensile test. Pathology was observed using light microscopy, decorin immunohistochemistry and electron microscopy (EM) including cupromeronic blue (CB) staining. Quantification of chondroitin sulfate and dermatan sulfate was performed using enzymatic digestion followed by anion-exchange HPLC. In Chst14-/- mice, skin tensile strength was significantly decreased compared with that in Chst14+/+ mice. EM showed that collagen fibrils were oriented in various directions to form disorganized collagen fibers in the reticular layer. Through EM-based CB staining, rod-shaped linear GAG chains were found to be attached at one end to collagen fibrils and protruded outside of the fibrils, in contrast to them being round and wrapping the collagen fibrils in Chst14+/+ mice. A very low level of dermatan sulfate disaccharides was detected in the skin of Chst14-/- mice by anion-exchange chromatography. Chst14-/- mice, exhibiting similar abnormalities in the GAG structure of decorin and collagen networks in the skin, could be a reasonable model for skin fragility of patients with mcEDS-CHST14, shedding light on the role of dermatan sulfate in maintaining skin strength.
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Affiliation(s)
- Takuya Hirose
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Shuji Mizumoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Aichi 468-8503, Japan
| | - Ayana Hashimoto
- Department of Applied Protein Chemistry, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-0054, Japan
| | - Yuki Takahashi
- Department of Medical Genetics, Shinshu University Schoolof Medicine, Matsumoto, Nagano 390-8621, Japan
| | - Takahiro Yoshizawa
- Division of Animal Research, Research Center for Supports to Advanced Science, Shinshu University, Matsumoto, Nagano 390-8621, Japan
| | - Yuko Nitahara-Kasahara
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Bunkyo-ku, Tokyo 113-0022, Japan
| | - Naoki Takahashi
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Jun Nakayama
- Department of Molecular Pathology, Shinshu University School of Medicine, Matsumoto, Nagano 390-8621, Japan
| | - Kazushige Takehana
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Takashi Okada
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Bunkyo-ku, Tokyo 113-0022, Japan.,Center for Gene and Cell Therapy, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Yoshihiro Nomura
- Department of Applied Protein Chemistry, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-0054, Japan
| | - Shuhei Yamada
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Aichi 468-8503, Japan
| | - Tomoki Kosho
- Department of Medical Genetics, Shinshu University Schoolof Medicine, Matsumoto, Nagano 390-8621, Japan.,Center for Medical Genetics, Shinshu University Hospital, Matsumoto, Nagano 390-8621, Japan.,Research Center for Supports to Advanced Science, Shinshu University, Matsumoto, Nagano 390-8621, Japan
| | - Takafumi Watanabe
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
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13
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Uhl FE, Zhang F, Pouliot RA, Uriarte JJ, Rolandsson Enes S, Han X, Ouyang Y, Xia K, Westergren-Thorsson G, Malmström A, Hallgren O, Linhardt RJ, Weiss DJ. Functional role of glycosaminoglycans in decellularized lung extracellular matrix. Acta Biomater 2020; 102:231-246. [PMID: 31751810 PMCID: PMC8713186 DOI: 10.1016/j.actbio.2019.11.029] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 11/09/2019] [Accepted: 11/12/2019] [Indexed: 01/17/2023]
Abstract
Despite progress in use of decellularized lung scaffolds in ex vivo lung bioengineering schemes, including use of gels and other materials derived from the scaffolds, the detailed composition and functional role of extracellular matrix (ECM) proteoglycans (PGs) and their glycosaminoglycan (GAG) chains remaining in decellularized lungs, is poorly understood. Using a commonly utilized detergent-based decellularization approach in human autopsy lungs resulted in disproportionate losses of GAGs with depletion of chondroitin sulfate/dermatan sulfate (CS/DS) > heparan sulfate (HS) > hyaluronic acid (HA). Specific changes in disaccharide composition of remaining GAGs were observed with disproportionate loss of NS and NS2S for HS groups and of 4S for CS/DS groups. No significant influence of smoking history, sex, time to autopsy, or age was observed in native vs. decellularized lungs. Notably, surface plasmon resonance demonstrated that GAGs remaining in decellularized lungs were unable to bind key matrix-associated growth factors FGF2, HGF, and TGFβ1. Growth of lung epithelial, pulmonary vascular, and stromal cells cultured on the surface of or embedded within gels derived from decellularized human lungs was differentially and combinatorially enhanced by replenishing specific GAGs and FGF2, HGF, and TGFβ1. In summary, lung decellularization results in loss and/or dysfunction of specific GAGs or side chains significantly affecting matrix-associated growth factor binding and lung cell metabolism. GAG and matrix-associated growth factor replenishment thus needs to be incorporated into schemes for investigations utilizing gels and other materials produced from decellularized human lungs. STATEMENT OF SIGNIFICANCE: Despite progress in use of decellularized lung scaffolds in ex vivo lung bioengineering schemes, including use of gels and other materials derived from the scaffolds, the detailed composition and functional role of extracellular matrix (ECM) proteoglycans (PGs) and their glycosaminoglycan (GAG) chains remaining in decellularized lungs, is poorly understood. In the current studies, we demonstrate that glycosaminoglycans (GAGs) are significantly depleted during decellularization and those that remain are dysfunctional and unable to bind matrix-associated growth factors critical for cell growth and differentiation. Systematically repleting GAGs and matrix-associated growth factors to gels derived from decellularized human lung significantly and differentially affects cell growth. These studies highlight the importance of considering GAGs in decellularized lungs and their derivatives.
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Affiliation(s)
- Franziska E Uhl
- University of Vermont, Larner College of Medicine, Burlington, VT, United States; Department of Experimental Medical Science, Faculty of Medicine, Lund University, Lund, Sweden
| | - Fuming Zhang
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Robert A Pouliot
- University of Vermont, Larner College of Medicine, Burlington, VT, United States
| | - Juan J Uriarte
- University of Vermont, Larner College of Medicine, Burlington, VT, United States
| | - Sara Rolandsson Enes
- University of Vermont, Larner College of Medicine, Burlington, VT, United States; Department of Experimental Medical Science, Faculty of Medicine, Lund University, Lund, Sweden
| | - Xiaorui Han
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Yilan Ouyang
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Ke Xia
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, United States
| | | | - Anders Malmström
- Department of Experimental Medical Science, Faculty of Medicine, Lund University, Lund, Sweden
| | - Oskar Hallgren
- Department of Experimental Medical Science, Faculty of Medicine, Lund University, Lund, Sweden
| | - Robert J Linhardt
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Daniel J Weiss
- University of Vermont, Larner College of Medicine, Burlington, VT, United States.
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14
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Kosho T, Mizumoto S, Watanabe T, Yoshizawa T, Miyake N, Yamada S. Recent Advances in the Pathophysiology of Musculocontractural Ehlers-Danlos Syndrome. Genes (Basel) 2019; 11:genes11010043. [PMID: 31905796 PMCID: PMC7017038 DOI: 10.3390/genes11010043] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 12/22/2019] [Accepted: 12/23/2019] [Indexed: 12/18/2022] Open
Abstract
Musculocontractural Ehlers–Danlos Syndome (mcEDS) is a type of EDS caused by biallelic pathogenic variants in the gene for carbohydrate sulfotransferase 14/dermatan 4-O-sulfotransferase 1 (CHST14/D4ST1, mcEDS-CHST14), or in the gene for dermatan sulfate epimerase (DSE, mcEDS-DSE). Thus far, 41 patients from 28 families with mcEDS-CHST14 and five patients from four families with mcEDS-DSE have been described in the literature. Clinical features comprise multisystem congenital malformations and progressive connective tissue fragility-related manifestations. This review outlines recent advances in understanding the pathophysiology of mcEDS. Pathogenic variants in CHST14 or DSE lead to reduced activities of relevant enzymes, resulting in a negligible amount of dermatan sulfate (DS) and an excessive amount of chondroitin sulfate. Connective tissue fragility is presumably attributable to a compositional change in the glycosaminoglycan chains of decorin, a major DS-proteoglycan in the skin that contributes to collagen fibril assembly. Collagen fibrils in affected skin are dispersed in the papillary to reticular dermis, whereas those in normal skin are regularly and tightly assembled. Glycosaminoglycan chains are linear in affected skin, stretching from the outer surface of collagen fibrils to adjacent fibrils; glycosaminoglycan chains are curved in normal skin, maintaining close contact with attached collagen fibrils. Homozygous (Chst14−/−) mice have been shown perinatal lethality, shorter fetal length and vessel-related placental abnormalities. Milder phenotypes in mcEDS-DSE might be related to a smaller fraction of decorin DS, potentially through residual DSE activity or compensation by DSE2 activity. These findings suggest critical roles of DS and DS-proteoglycans in the multisystem development and maintenance of connective tissues, and provide fundamental evidence to support future etiology-based therapies.
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Affiliation(s)
- Tomoki Kosho
- Department of Medical Genetics, Shinshu University School of Medicine, Matsumoto 390-8621, Japan
- Center for Medical Genetics, Shinshu University Hospital, Matsumoto 390-8621, Japan
- Research Center for Supports to Advanced Science, Matsumoto 390-8621, Japan
- Correspondence: ; Tel.: +81-263-37-2618; Fax: +81-263-37-2619
| | - Shuji Mizumoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya 468-8503, Japan; (S.M.); (S.Y.)
| | - Takafumi Watanabe
- Laboratory of Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan;
| | - Takahiro Yoshizawa
- Division of Animal Research, Research Center for Supports to Advanced Science, Shinshu University, Matsumoto 390-8621, Japan;
| | - Noriko Miyake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan;
| | - Shuhei Yamada
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya 468-8503, Japan; (S.M.); (S.Y.)
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15
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Comparison of the Interactions of Different Growth Factors and Glycosaminoglycans. Molecules 2019; 24:molecules24183360. [PMID: 31527407 PMCID: PMC6767211 DOI: 10.3390/molecules24183360] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/10/2019] [Accepted: 09/11/2019] [Indexed: 01/24/2023] Open
Abstract
Most growth factors are naturally occurring proteins, which are signaling molecules implicated in cellular multiple functions such as proliferation, migration and differentiation under patho/physiological conditions by interacting with cell surface receptors and other ligands in the extracellular microenvironment. Many of the growth factors are heparin-binding proteins (HBPs) that have a high affinity for cell surface heparan sulfate proteoglycans (HSPG). In the present study, we report the binding kinetics and affinity of heparin interacting with different growth factors, including fibroblast growth factor (FGF) 2,7,10, hepatocyte growth factor (HGF) and transforming growth factor (TGF β-1), using a heparin chip. Surface plasmon resonance studies revealed that all the tested growth factors bind to heparin with high affinity (with KD ranging from ~0.1 to 59 nM) and all the interactions are oligosaccharide size dependent except those involving TGF β-1. These heparin-binding growth factors also interact with other glycosaminoglycans (GAGs), as well as various chemically modified heparins. Other GAGs, including heparan sulfate, chondroitin sulfates A, B, C, D, E and keratan sulfate, showed different inhibition activities for the growth factor-heparin interactions. FGF2, FGF7, FGF10 and HGF bind heparin but the 2-O-sulfo and 6-O-sulfo groups on heparin have less impact on these interactions than do the N-sulfo groups. All the three sulfo groups (N-, 2-O and 6-O) on heparin are important for TGFβ-1-heparin interaction.
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16
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Structural alteration of glycosaminoglycan side chains and spatial disorganization of collagen networks in the skin of patients with mcEDS-CHST14. Biochim Biophys Acta Gen Subj 2019; 1863:623-631. [DOI: 10.1016/j.bbagen.2018.12.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 12/07/2018] [Accepted: 12/12/2018] [Indexed: 12/31/2022]
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17
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Mikael PE, Willard C, Koyee A, Barlao CG, Liu X, Han X, Ouyang Y, Xia K, Linhardt RJ, Dordick JS. Remodeling of Glycosaminoglycans During Differentiation of Adult Human Bone Mesenchymal Stromal Cells Toward Hepatocytes. Stem Cells Dev 2019; 28:278-289. [PMID: 30572803 PMCID: PMC6389772 DOI: 10.1089/scd.2018.0197] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 12/12/2018] [Indexed: 01/09/2023] Open
Abstract
There is a critical need to generate functional hepatocytes to aid in liver repair and regeneration upon availability of a renewable, and potentially personalized, source of human hepatocytes (hHEP). Currently, the vast majority of primary hHEP are obtained from human tissue through cadavers. Recent advances in stem cell differentiation have opened up the possibility to obtain fully functional hepatocytes from embryonic or induced pluripotent stem cells, or adult stem cells. With respect to the latter, human bone marrow mesenchymal stromal cells (hBMSCs) can serve as a source of autogenetic and allogenic multipotent stem cells for liver repair and regeneration. A major aspect of hBMSC differentiation is the extracellular matrix (ECM) composition and, in particular, the role of glycosaminoglycans (GAGs) in the differentiation process. In this study, we examine the influence of four distinct culture conditions/protocols (T1-T4) on GAG composition and hepatic markers. α-Fetoprotein and hepatocyte nuclear factor-4α were expressed continually over 21 days of differentiation, as indicated by real time quantitative PCR analysis, while albumin (ALB) expression did not begin until day 21. Hepatocyte growth factor (HGF) appears to be more effective than activin A in promoting hepatic-like cells through the mesenchymal-epithelial transition, perhaps due to the former binding to the HGF receptor to form a unique complex that diversifies the biological functions of HGF. Of the four protocols tested, uniform hepatocyte-like morphological changes, ALB secretion, and glycogen storage were found to be highest with protocol T2, which involves both early- and late-stage combinations of growth factors. The total GAG profile of the hBMSC ECM is rich in heparan sulfate (HS) and hyaluronan, both of which fluctuate during differentiation. The GAG profile of primary hHEP showed an HS-rich ECM, and thus, it may be possible to guide hBMSC differentiation to more mature hepatocytes by controlling the GAG profile expressed by differentiating cells.
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Affiliation(s)
- Paiyz E. Mikael
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York
| | - Charles Willard
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Aurvan Koyee
- Department of Biology, University of Virginia, Charlottesville, Virginia
| | - Charmaine-Grace Barlao
- Department of Biochemistry and Biophysics, Rensselaer Polytechnic Institute, Troy, New York
| | - Xinyue Liu
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York
| | - Xiaorui Han
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York
| | - Yilan Ouyang
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York
| | - Ke Xia
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York
| | - Robert J. Linhardt
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York
- Department of Biochemistry and Biophysics, Rensselaer Polytechnic Institute, Troy, New York
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York
| | - Jonathan S. Dordick
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York
- Department of Biochemistry and Biophysics, Rensselaer Polytechnic Institute, Troy, New York
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York
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18
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Pudełko A, Wisowski G, Olczyk K, Koźma EM. The dual role of the glycosaminoglycan chondroitin-6-sulfate in the development, progression and metastasis of cancer. FEBS J 2019; 286:1815-1837. [PMID: 30637950 PMCID: PMC6850286 DOI: 10.1111/febs.14748] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 11/14/2018] [Accepted: 01/10/2019] [Indexed: 12/16/2022]
Abstract
The remarkable structural heterogeneity of chondroitin sulfate (CS) and dermatan sulfate (DS) generates biological information that can be unique to each of these glycosaminoglycans (GAGs), and changes in their composition are translated into alterations in the binding profiles of these molecules. CS/DS can bind to various cytokines and growth factors, cell surface receptors, adhesion molecules, enzymes and fibrillar glycoproteins of the extracellular matrix, thereby influencing both cell behavior and the biomechanical and biochemical properties of the matrix. In this review, we summarize the current knowledge concerning CS/DS metabolism in the human cancer stroma. The remodeling of the GAG profile in the tumor niche is manifested as a substantial increase in the CS content and a gradual decrease in the proportion between DS and CS. Furthermore, the composition of CS and DS is also affected, which results in a substantial increase in the 6‐O‐sulfated and/or unsulfated disaccharide content, which is concomitant with a decrease in the 4‐O‐sulfation level. Here, we discuss the possible impact of alterations in the CS/DS sulfation pattern on the binding capacity and specificity of these GAGs. Moreover, we propose potential consequences of the stromal accumulation of chondroitin‐6‐sulfate for the progression and metastasis of cancer.
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Affiliation(s)
- Adam Pudełko
- Department of Clinical Chemistry and Laboratory Diagnostics, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Grzegorz Wisowski
- Department of Clinical Chemistry and Laboratory Diagnostics, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Krystyna Olczyk
- Department of Clinical Chemistry and Laboratory Diagnostics, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Ewa Maria Koźma
- Department of Clinical Chemistry and Laboratory Diagnostics, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
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19
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Tykesson E, Hassinen A, Zielinska K, Thelin MA, Frati G, Ellervik U, Westergren-Thorsson G, Malmström A, Kellokumpu S, Maccarana M. Dermatan sulfate epimerase 1 and dermatan 4- O-sulfotransferase 1 form complexes that generate long epimerized 4- O-sulfated blocks. J Biol Chem 2018; 293:13725-13735. [PMID: 29976758 DOI: 10.1074/jbc.ra118.003875] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 06/11/2018] [Indexed: 01/14/2023] Open
Abstract
During the biosynthesis of chondroitin/dermatan sulfate (CS/DS), a variable fraction of glucuronic acid is converted to iduronic acid through the activities of two epimerases, dermatan sulfate epimerases 1 (DS-epi1) and 2 (DS-epi2). Previous in vitro studies indicated that without association with other enzymes, DS-epi1 activity produces structures that have only a few adjacent iduronic acid units. In vivo, concomitant with epimerization, dermatan 4-O-sulfotransferase 1 (D4ST1) sulfates the GalNAc adjacent to iduronic acid. This sulfation facilitates DS-epi1 activity and enables the formation of long blocks of sulfated iduronic acid-containing domains, which can be major components of CS/DS. In this report, we used recombinant enzymes to confirm the concerted action of DS-epi1 and D4ST1. Confocal microscopy revealed that these two enzymes colocalize to the Golgi, and FRET experiments indicated that they physically interact. Furthermore, FRET, immunoprecipitation, and cross-linking experiments also revealed that DS-epi1, DS-epi2, and D4ST1 form homomers and are all part of a hetero-oligomeric complex where D4ST1 directly interacts with DS-epi1, but not with DS-epi2. The cooperation of DS-epi1 with D4ST1 may therefore explain the processive mode of the formation of iduronic acid blocks. In conclusion, the iduronic acid-forming enzymes operate in complexes, similar to other enzymes active in glycosaminoglycan biosynthesis. This knowledge shed light on regulatory mechanisms controlling the biosynthesis of the structurally diverse CS/DS molecule.
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Affiliation(s)
- Emil Tykesson
- From the Department of Experimental Medical Science, Lund University, SE-221 00, Lund, Sweden
| | - Antti Hassinen
- Faculty of Biochemistry and Molecular Medicine, University of Oulu, 90570 Oulu, Finland.,Institute for Molecular Medicine Finland (FIMM), University of Helsinki, 00014 Helsinki, Finland, and
| | - Katarzyna Zielinska
- From the Department of Experimental Medical Science, Lund University, SE-221 00, Lund, Sweden
| | - Martin A Thelin
- From the Department of Experimental Medical Science, Lund University, SE-221 00, Lund, Sweden
| | - Giacomo Frati
- From the Department of Experimental Medical Science, Lund University, SE-221 00, Lund, Sweden
| | - Ulf Ellervik
- Department of Chemistry, Lund University, SE-221 00, Lund, Sweden
| | | | - Anders Malmström
- From the Department of Experimental Medical Science, Lund University, SE-221 00, Lund, Sweden
| | - Sakari Kellokumpu
- Faculty of Biochemistry and Molecular Medicine, University of Oulu, 90570 Oulu, Finland
| | - Marco Maccarana
- From the Department of Experimental Medical Science, Lund University, SE-221 00, Lund, Sweden,
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20
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González MN, de Mello W, Butler-Browne GS, Silva-Barbosa SD, Mouly V, Savino W, Riederer I. HGF potentiates extracellular matrix-driven migration of human myoblasts: involvement of matrix metalloproteinases and MAPK/ERK pathway. Skelet Muscle 2017; 7:20. [PMID: 29017538 PMCID: PMC5635537 DOI: 10.1186/s13395-017-0138-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 09/22/2017] [Indexed: 12/31/2022] Open
Abstract
Background The hepatocyte growth factor (HGF) is required for the activation of muscle progenitor cells called satellite cells (SC), plays a role in the migration of proliferating SC (myoblasts), and is present as a soluble factor during muscle regeneration, along with extracellular matrix (ECM) molecules. In this study, we aimed at determining whether HGF is able to interact with ECM proteins, particularly laminin 111 and fibronectin, and to modulate human myoblast migration. Methods We evaluated the expression of the HGF-receptor c-Met, laminin, and fibronectin receptors by immunoblotting, flow cytometry, or immunofluorescence and used Transwell assays to analyze myoblast migration on laminin 111 and fibronectin in the absence or presence of HGF. Zymography was used to check whether HGF could modulate the production of matrix metalloproteinases by human myoblasts, and the activation of MAPK/ERK pathways was evaluated by immunoblotting. Results We demonstrated that human myoblasts express c-Met, together with laminin and fibronectin receptors. We observed that human laminin 111 and fibronectin have a chemotactic effect on myoblast migration, and this was synergistically increased when low doses of HGF were added. We detected an increase in MMP-2 activity in myoblasts treated with HGF. Conversely, MMP-2 inhibition decreased the HGF-associated stimulation of cell migration triggered by laminin or fibronectin. HGF treatment also induced in human myoblasts activation of MAPK/ERK pathways, whose specific inhibition decreased the HGF-associated stimulus of cell migration triggered by laminin 111 or fibronectin. Conclusions We demonstrate that HGF induces ERK phosphorylation and MMP production, thus stimulating human myoblast migration on ECM molecules. Conceptually, these data state that the mechanisms involved in the migration of human myoblasts comprise both soluble and insoluble moieties. This should be taken into account to optimize the design of therapeutic cell transplantation strategies by improving the migration of donor cells within the host tissue, a main issue regarding this approach. Electronic supplementary material The online version of this article (10.1186/s13395-017-0138-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mariela Natacha González
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, Manguinhos, Rio de Janeiro, 21045-900, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Av. Brasil 4365, Manguinhos, 21045-900, Rio de Janeiro, Brasil
| | - Wallace de Mello
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, Manguinhos, Rio de Janeiro, 21045-900, Brazil
| | - Gillian S Butler-Browne
- Sorbonne Universités, Université Pierre et Marie Curie, INSERM UMRS974, CNRS FRE3617, Center for Research in Myology, 47 Boulevard de l'hôpital, 75013, Paris, France
| | - Suse Dayse Silva-Barbosa
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, Manguinhos, Rio de Janeiro, 21045-900, Brazil.,Department of Clinical Research, National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Vincent Mouly
- Sorbonne Universités, Université Pierre et Marie Curie, INSERM UMRS974, CNRS FRE3617, Center for Research in Myology, 47 Boulevard de l'hôpital, 75013, Paris, France
| | - Wilson Savino
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, Manguinhos, Rio de Janeiro, 21045-900, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Av. Brasil 4365, Manguinhos, 21045-900, Rio de Janeiro, Brasil
| | - Ingo Riederer
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, Manguinhos, Rio de Janeiro, 21045-900, Brazil. .,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Av. Brasil 4365, Manguinhos, 21045-900, Rio de Janeiro, Brasil.
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21
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Thayaparan T, Petrovic RM, Achkova DY, Zabinski T, Davies DM, Klampatsa A, Parente-Pereira AC, Whilding LM, van der Stegen SJ, Woodman N, Sheaff M, Cochran JR, Spicer JF, Maher J. CAR T-cell immunotherapy of MET-expressing malignant mesothelioma. Oncoimmunology 2017; 6:e1363137. [PMID: 29209570 DOI: 10.1080/2162402x.2017.1363137] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/24/2017] [Accepted: 07/31/2017] [Indexed: 12/21/2022] Open
Abstract
Mesothelioma is an incurable cancer for which effective therapies are required. Aberrant MET expression is prevalent in mesothelioma, although targeting using small molecule-based therapeutics has proven disappointing. Chimeric antigen receptors (CARs) couple the HLA-independent binding of a cell surface target to the delivery of a tailored T-cell activating signal. Here, we evaluated the anti-tumor activity of MET re-targeted CAR T-cells against mesothelioma. Using immunohistochemistry, MET was detected in 67% of malignant pleural mesotheliomas, most frequently of epithelioid or biphasic subtype. The presence of MET did not influence patient survival. Candidate MET-specific CARs were engineered in which a CD28+CD3ζ endodomain was fused to one of 3 peptides derived from the N and K1 domains of hepatocyte growth factor (HGF), which represents the minimum MET binding element present in this growth factor. Using an NIH3T3-based artificial antigen-presenting cell system, we found that all 3 candidate CARs demonstrated high specificity for MET. By contrast, these CARs did not mediate T-cell activation upon engagement of other HGF binding partners, namely CD44v6 or heparan sulfate proteoglycans, including Syndecan-1. NK1-targeted CARs demonstrated broadly similar in vitro potency, indicated by destruction of MET-expressing mesothelioma cell lines, accompanied by cytokine release. In vivo anti-tumor activity was demonstrated following intraperitoneal delivery to mice with an established mesothelioma xenograft. Progressive tumor regression occurred without weight loss or other clinical indicators of toxicity. These data confirm the frequent expression of MET in malignant pleural mesothelioma and demonstrate that this can be targeted effectively and safely using a CAR T-cell immunotherapeutic strategy.
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Affiliation(s)
- Thivyan Thayaparan
- King's College London, Division of Cancer Studies, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK
| | - Roseanna M Petrovic
- King's College London, Division of Cancer Studies, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK
| | - Daniela Y Achkova
- King's College London, Division of Cancer Studies, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK
| | - Tomasz Zabinski
- King's College London, Division of Cancer Studies, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK
| | - David M Davies
- King's College London, Division of Cancer Studies, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK
| | - Astero Klampatsa
- King's College London, Division of Cancer Studies, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK.,Pulmonary, Allergy & Critical Care Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ana C Parente-Pereira
- King's College London, Division of Cancer Studies, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK
| | - Lynsey M Whilding
- King's College London, Division of Cancer Studies, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK
| | | | - Natalie Woodman
- King's College London, Division of Cancer Studies, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK
| | - Michael Sheaff
- Department of Histopathology, Barts Health NHS Trust, The Royal London Hospital, London E1 2ES, UK
| | - Jennifer R Cochran
- Department of Bioengineering and Chemical Engineering, Stanford Cancer Institute, 443 Via Ortega, Room 356, Stanford, CA, USA
| | - James F Spicer
- King's College London, Division of Cancer Studies, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK.,Department of Medical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - John Maher
- King's College London, Division of Cancer Studies, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK.,Department of Clinical Immunology and Allergy, King's College Hospital NHS Foundation Trust, Denmark Hill, London SE5 9RS, UK.,Department of Immunology, Eastbourne Hospital, Kings Drive, Eastbourne, East Sussex, BN21 2UD, UK
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22
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Ayerst BI, Merry CLR, Day AJ. The Good the Bad and the Ugly of Glycosaminoglycans in Tissue Engineering Applications. Pharmaceuticals (Basel) 2017; 10:E54. [PMID: 28608822 PMCID: PMC5490411 DOI: 10.3390/ph10020054] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/05/2017] [Accepted: 06/05/2017] [Indexed: 12/14/2022] Open
Abstract
High sulfation, low cost, and the status of heparin as an already FDA- and EMA- approved product, mean that its inclusion in tissue engineering (TE) strategies is becoming increasingly popular. However, the use of heparin may represent a naïve approach. This is because tissue formation is a highly orchestrated process, involving the temporal expression of numerous growth factors and complex signaling networks. While heparin may enhance the retention and activity of certain growth factors under particular conditions, its binding 'promiscuity' means that it may also inhibit other factors that, for example, play an important role in tissue maintenance and repair. Within this review we focus on articular cartilage, highlighting the complexities and highly regulated processes that are involved in its formation, and the challenges that exist in trying to effectively engineer this tissue. Here we discuss the opportunities that glycosaminoglycans (GAGs) may provide in advancing this important area of regenerative medicine, placing emphasis on the need to move away from the common use of heparin, and instead focus research towards the utility of specific GAG preparations that are able to modulate the activity of growth factors in a more controlled and defined manner, with less off-target effects.
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Affiliation(s)
- Bethanie I Ayerst
- Wellcome Trust Centre for Cell-Matrix Research, Division of Cell-Matrix Biology & Regenerative Medicine, School of Biology, Faculty of Biology, Medicine & Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, UK.
| | - Catherine L R Merry
- Stem Cell Glycobiology Group, Wolfson Centre for Stem Cells, Tissue Engineering & Modelling (STEM), Centre for Biomolecular Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
| | - Anthony J Day
- Wellcome Trust Centre for Cell-Matrix Research, Division of Cell-Matrix Biology & Regenerative Medicine, School of Biology, Faculty of Biology, Medicine & Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PL, UK.
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23
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Xu AY, Melton LD, Ryan TM, Mata JP, Jameson GB, Rekas A, Williams MAK, McGillivray DJ. Sugar-coated proteins: the importance of degree of polymerisation of oligo-galacturonic acid on protein binding and aggregation. SOFT MATTER 2017; 13:2698-2707. [PMID: 28337496 DOI: 10.1039/c6sm02660e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We have simplified the structural heterogeneity of protein-polysaccharide binding by investigating protein binding to oligosaccharides. The interactions between bovine beta-lactoglobulin A (βLgA) and oligo-galacturonic acids (OGAs) with various numbers of sugar residues have been investigated with a range of biophysical techniques. We show that the βLgA-OGA interaction is critically dependent on the length of the oligosaccharide. Isothermal titration calorimetry results suggest that a minimum length of 7 or 8 sugar residues is required in order to exhibit appreciable exothermic interactions with βLgA - shorter oligosaccharides show no enthalpic interactions at any concentration ratio. When titrating βLgA into OGAs with more than 7-8 sugar residues the sample solution also became turbid with increasing amounts of βLgA, indicating the formation of macroscopic assemblies. Circular dichroism, thioflavin T fluorescence and small angle X-ray/neutron scattering experiments revealed two structural regimes during the titration. When OGAs were in excess, βLgA formed discrete assemblies upon OGA binding, and no subsequent aggregation was observed. However, when βLgA was present in excess, multi-scale structures were formed and this eventually led to the separation of the solution into two liquid-phases.
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Affiliation(s)
- Amy Y Xu
- Riddet Institute Centre of Research Excellence, Private Bag 11222, Palmerston North 4442, New Zealand and School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Laurence D Melton
- Riddet Institute Centre of Research Excellence, Private Bag 11222, Palmerston North 4442, New Zealand and School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Timothy M Ryan
- Australian Synchrotron, Clayton 3168, Victoria, Australia and The MacDiarmid Institute, Private Bag 600, Wellington 6140, New Zealand
| | - Jitendra P Mata
- ACNS, Australian Nuclear Science and Technology Organisation (ANSTO), Private Bag 2001, NSW 2232, Australia
| | - Geoffrey B Jameson
- Riddet Institute Centre of Research Excellence, Private Bag 11222, Palmerston North 4442, New Zealand and Institute of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand
| | - Agata Rekas
- National Deuteration Facility, Australian Nuclear Science and Technology Organisation (ANSTO), Private Bag 2001, NSW 2232, Australia
| | - Martin A K Williams
- Riddet Institute Centre of Research Excellence, Private Bag 11222, Palmerston North 4442, New Zealand and The MacDiarmid Institute, Private Bag 600, Wellington 6140, New Zealand and Institute of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand
| | - Duncan J McGillivray
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand. and The MacDiarmid Institute, Private Bag 600, Wellington 6140, New Zealand
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24
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Minsky BB, Dubin PL, Kaltashov IA. Electrostatic Forces as Dominant Interactions Between Proteins and Polyanions: an ESI MS Study of Fibroblast Growth Factor Binding to Heparin Oligomers. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:758-767. [PMID: 28211013 PMCID: PMC5808462 DOI: 10.1007/s13361-017-1596-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 12/26/2016] [Accepted: 01/04/2017] [Indexed: 05/24/2023]
Abstract
The interactions between fibroblast growth factors (FGFs) and their receptors (FGFRs) are facilitated by heparan sulfate (HS) and heparin (Hp), highly sulfated biological polyelectrolytes. The molecular basis of FGF interactions with these polyelectrolytes is highly complex due to the structural heterogeneity of HS/Hp, and many details still remain elusive, especially the significance of charge density and minimal chain length of HS/Hp in growth factor recognition and multimerization. In this work, we use electrospray ionization mass spectrometry (ESI MS) to investigate the association of relatively homogeneous oligoheparins (octamer, dp8, and decamer, dp10) with acidic fibroblast growth factor (FGF-1). This growth factor forms 1:1, 2:1, and 3:1 protein/heparinoid complexes with both dp8 and dp10, and the fraction of bound protein is highly dependent on protein/heparinoid molar ratio. Multimeric complexes are preferentially formed on the highly sulfated Hp oligomers. Although a variety of oligomers appear to be binding-competent, there is a strong correlation between the affinity and the overall level of sulfation (the highest charge density polyanions binding FGF most strongly via multivalent interactions). These results show that the interactions between FGF-1 and Hp oligomers are primarily directed by electrostatics, and also demonstrate the power of ESI MS as a tool to study multiple binding equilibria between proteins and structurally heterogeneous polyanions. Graphical Abstract ᅟ.
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Affiliation(s)
- Burcu Baykal Minsky
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, MA, 01003, USA
| | - Paul L Dubin
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, MA, 01003, USA
| | - Igor A Kaltashov
- Department of Chemistry, University of Massachusetts-Amherst, Amherst, MA, 01003, USA.
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25
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Nilsson J, Noborn F, Gomez Toledo A, Nasir W, Sihlbom C, Larson G. Characterization of Glycan Structures of Chondroitin Sulfate-Glycopeptides Facilitated by Sodium Ion-Pairing and Positive Mode LC-MS/MS. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:229-241. [PMID: 27873218 PMCID: PMC5227003 DOI: 10.1007/s13361-016-1539-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 10/13/2016] [Accepted: 10/20/2016] [Indexed: 06/06/2023]
Abstract
Purification and liquid chromatography-tandem mass spectrometry (LC-MS/MS) characterization of glycopeptides, originating from protease digests of glycoproteins, enables site-specific analysis of protein N- and O-glycosylations. We have described a protocol to enrich, hydrolyze by chondroitinase ABC, and characterize chondroitin sulfate-containing glycopeptides (CS-glycopeptides) using positive mode LC-MS/MS. The CS-glycopeptides, originating from the Bikunin proteoglycan of human urine samples, had ΔHexAGalNAcGlcAGalGalXyl-O-Ser hexasaccharide structure and were further substituted with 0-3 sulfate and 0-1 phosphate groups. However, it was not possible to exactly pinpoint sulfate attachment residues, for protonated precursors, due to extensive fragmentation of sulfate groups using high-energy collision induced dissociation (HCD). To circumvent the well-recognized sulfate instability, we now introduced Na+ ions to form sodiated precursors, which protected sulfate groups from decomposition and facilitated the assignment of sulfate modifications. Sulfate groups were pinpointed to both Gal residues and to the GalNAc of the hexasaccharide structure. The intensities of protonated and sodiated saccharide oxonium ions were very prominent in the HCD-MS2 spectra, which provided complementary structural analysis of sulfate substituents of CS-glycopeptides. We have demonstrated a considerable heterogeneity of the bikunin CS linkage region. The realization of these structural variants should be beneficial in studies aimed at investigating the importance of the CS linkage region with regards to the biosynthesis of CS and potential interactions to CS binding proteins. Also, the combined use of protonated and sodiated precursors for positive mode HCD fragmentation analysis will likely become useful for additional classes of sulfated glycopeptides. Graphical Abstract ᅟ.
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Affiliation(s)
- Jonas Nilsson
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Fredrik Noborn
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Alejandro Gomez Toledo
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Waqas Nasir
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Carina Sihlbom
- The Proteomics Core Facility, Core Facilities, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Göran Larson
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.
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26
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Epitope mapping by a Wnt-blocking antibody: evidence of the Wnt binding domain in heparan sulfate. Sci Rep 2016; 6:26245. [PMID: 27185050 PMCID: PMC4869111 DOI: 10.1038/srep26245] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 04/28/2016] [Indexed: 12/13/2022] Open
Abstract
Heparan sulfate (HS) is a polysaccharide known to modulate many important biological processes, including Wnt signaling. However, the biochemical interaction between HS and Wnt molecules is not well characterized largely due to the lack of suitable methods. To determine the Wnt binding domain in HS, we used a Wnt signaling-inhibitory antibody (HS20) and a panel of synthetic HS oligosaccharides with distinct lengths and sulfation modifications. We found that the binding of HS20 to heparan sulfate required sulfation at both the C2 position (2-O-sulfation) and C6 position (6-O-sulfation). The oligosaccharides with the greatest competitive effect for HS20 binding were between six and eight saccharide residues in length. Additionally, a four residue-long oligosaccharide could also be recognized by HS20 if an additional 3-O-sulfation modification was present. Furthermore, similar oligosaccharides with 2-O, 6-O and 3-O-sulfations showed inhibition for Wnt activation. These results have revealed that HS20 and Wnt recognize a HS structure containing IdoA2S and GlcNS6S, and that the 3-O-sulfation in GlcNS6S3S significantly enhances the binding of both HS20 and Wnt. This study provides the evidence for identifying the Wnt binding domain in HS and suggests a therapeutic approach to target the interaction of Wnt and HS in cancer and other diseases.
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27
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Inhibition of Phosphatase Activity Follows Decline in Sulfatase Activity and Leads to Transcriptional Effects through Sustained Phosphorylation of Transcription Factor MITF. PLoS One 2016; 11:e0153463. [PMID: 27078017 PMCID: PMC4831796 DOI: 10.1371/journal.pone.0153463] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 03/30/2016] [Indexed: 01/11/2023] Open
Abstract
Arylsulfatase B (B-acetylgalactosamine 4-sulfatase; ARSB) is the enzyme that removes 4-sulfate groups from the non-reducing end of the glycosaminoglycans chondroitin 4-sulfate and dermatan sulfate. Decline in ARSB has been shown in malignant prostate, colonic, and mammary cells and tissues, and decline in ARSB leads to transcriptional events mediated by galectin-3 with AP-1 and Sp1. Increased mRNA expression of GPNMB (transmembrane glycoprotein NMB) in HepG2 cells and in hepatic tissue from ARSB-deficient mice followed decline in expression of ARSB and was mediated by the microphthalmia-associated transcription factor (MITF), but was unaffected by silencing galectin-3. Since GPNMB is increased in multiple malignancies, studies were performed to determine how decline in ARSB increased GPNMB expression. The mechanism by which decline in ARSB increased nuclear phospho-MITF was due to reduced activity of SHP2, a protein tyrosine phosphatase with Src homology (SH2) domains that regulates multiple cellular processes. SHP2 activity declined due to increased binding with chondroitin 4-sulfate when ARSB was reduced. When SHP2 activity was inhibited, phosphorylations of p38 mitogen-associated phosphokinase (MAPK) and of MITF increased, leading to GPNMB promoter activation. A dominant negative SHP2 construct, the SHP2 inhibitor PHSP1, and silencing of ARSB increased phospho-p38, nuclear MITF, and GPNMB. In contrast, constitutively active SHP2 and overexpression of ARSB inhibited GPNMB expression. The interaction between chondroitin 4-sulfate and SHP2 is a novel intersection between sulfation and phosphorylation, by which decline in ARSB and increased chondroitin 4-sulfation can inhibit SHP2, thereby regulating downstream tyrosine phosphorylations by sustained phosphorylations with associated activation of signaling and transcriptional events.
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28
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Liu J, Li J, Fu W, Tang J, Feng X, Chen J, Liang Y, Jin R, Xie A, Cai X. Adenoviral delivery of truncated MMP-8 fused with the hepatocyte growth factor mutant 1K1 ameliorates liver cirrhosis and promotes hepatocyte proliferation. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:5655-67. [PMID: 26527860 PMCID: PMC4621191 DOI: 10.2147/dddt.s92481] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Liver cirrhosis is a chronic liver disease caused by chronic liver injury, which activates hepatic stellate cells (HSCs) and the secretion of extracellular matrix (ECM). Cirrhosis accounts for an extensive level of morbidity and mortality worldwide, largely due to lack of effective treatment options. In this study, we have constructed a fusion protein containing matrix metal-loproteinase 8 (MMP-8) and the human growth factor mutant 1K1 (designated cMMP8-1K1) and delivered it into hepatocytes and in vivo and in cell culture via intravenous injection of fusion protein-harboring adenovirus. In doing so, we found that the cMMP8-1K1 fusion protein promotes the proliferation of hepatocytes, likely resulting from the combined inhibition of type I collagen secretion and the degradation of the ECM in the HSCs. This fusion protein was also observed to ameliorate liver cirrhosis in our mouse model. These changes appear to be linked to changes in downstream gene expression. Taken together, these results suggest a possible strategy for the treatment of liver cirrhosis and additional work is warranted.
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Affiliation(s)
- Jinghua Liu
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Jianbo Li
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Weiwei Fu
- Department of Pathology, The Affiliated Hospital of Medical College, Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Jiacheng Tang
- Key Lab of Surgery of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Xu Feng
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Jiang Chen
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Yuelong Liang
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Ren'an Jin
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Anyong Xie
- Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, People's Republic of China
| | - Xiujun Cai
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China ; Key Lab of Surgery of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
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29
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Arlov Ø, Aachmann FL, Feyzi E, Sundan A, Skjåk-Bræk G. The Impact of Chain Length and Flexibility in the Interaction between Sulfated Alginates and HGF and FGF-2. Biomacromolecules 2015; 16:3417-24. [PMID: 26406104 DOI: 10.1021/acs.biomac.5b01125] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Alginate is a promising polysaccharide for use in biomaterials as it is biologically inert. One way to functionalize alginate is by chemical sulfation to emulate sulfated glycosaminoglycans, which interact with a variety of proteins critical for tissue development and homeostasis. In the present work we studied the impact of chain length and flexibility of sulfated alginates for interactions with FGF-2 and HGF. Both growth factors interact with defined sequences of heparan sulfate (HS) at the cell surface or in the extracellular matrix. Whereas FGF-2 interacts with a pentasaccharide sequence containing a critical 2-O-sulfated iduronic acid, HGF has been suggested to require a highly sulfated HS/heparin octasaccharide. Here, oligosaccharides of alternating mannuronic and guluronic acid (MG) were sulfated and assessed by their relative efficacy at releasing growth factor bound to the surface of myeloma cells. 8-mers of sulfated MG (SMG) alginate showed significant HGF release compared to shorter fragments, while the maximum efficacy was achieved at a chain length average of 14 monosaccharides. FGF-2 release required a higher concentration of the SMG fragments, and the 14-mer was less potent compared to an equally sulfated high-molecular weight SMG. Sulfated mannuronan (SM) was subjected to periodate oxidation to increase chain flexibility. To assess the change in flexibility, the persistence length was estimated by SEC-MALLS analysis and the Bohdanecky approach to the worm-like chain model. A high degree of oxidation of SM resulted in approximately twice as potent HGF release compared to the nonoxidized SM alginate. The release of FGF-2 also increased with the degree of oxidation, but to a lower degree compared to that of HGF. It was found that the SM alginates were more efficient at releasing FGF-2 than the SMG alginates, indicating a greater dependence on monosaccharide identity and charge orientation over chain flexibility and charge density.
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Affiliation(s)
- Øystein Arlov
- Department of Biotechnology, Norwegian University of Science and Technology , Sem Sælands vei 6/8, 7034 Trondheim, Norway
| | - Finn L Aachmann
- Department of Biotechnology, Norwegian University of Science and Technology , Sem Sælands vei 6/8, 7034 Trondheim, Norway
| | - Emadoldin Feyzi
- K.G. Jebsen Center for Myeloma Research and Centre of Molecular Inflammation Research (CEMIR), Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology , Prinsesse Kristinas gate 1, 7030 Trondheim, Norway.,Department of Hematology, St. Olav University Hospital , Erling Skjalgsons Gate 1, 7030 Trondheim, Norway
| | - Anders Sundan
- K.G. Jebsen Center for Myeloma Research and Centre of Molecular Inflammation Research (CEMIR), Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology , Prinsesse Kristinas gate 1, 7030 Trondheim, Norway
| | - Gudmund Skjåk-Bræk
- Department of Biotechnology, Norwegian University of Science and Technology , Sem Sælands vei 6/8, 7034 Trondheim, Norway
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Gallagher J. Fell-Muir Lecture: Heparan sulphate and the art of cell regulation: a polymer chain conducts the protein orchestra. Int J Exp Pathol 2015; 96:203-31. [PMID: 26173450 PMCID: PMC4561558 DOI: 10.1111/iep.12135] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 05/22/2015] [Indexed: 12/12/2022] Open
Abstract
Heparan sulphate (HS) sits at the interface of the cell and the extracellular matrix. It is a member of the glycosaminoglycan family of anionic polysaccharides with unique structural features designed for protein interaction and regulation. Its client proteins include soluble effectors (e.g. growth factors, morphogens, chemokines), membrane receptors and cell adhesion proteins such as fibronectin, fibrillin and various types of collagen. The protein-binding properties of HS, together with its strategic positioning in the pericellular domain, are indicative of key roles in mediating the flow of regulatory signals between cells and their microenvironment. The control of transmembrane signalling is a fundamental element in the complex biology of HS. It seems likely that, in some way, HS orchestrates diverse signalling pathways to facilitate information processing inside the cell. A dictionary definition of an orchestra is 'a large group of musicians who play together on various instruments …' to paraphrase, the HS orchestra is 'a large group of proteins that play together on various receptors'. HS conducts this orchestra to ensure that proteins hit the right notes on their receptors but, in the manner of a true conductor, does it also set 'the musical pulse' and create rhythm and harmony attractive to the cell? This is too big a question to answer but fun to think about as you read this review.
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Affiliation(s)
- John Gallagher
- Cancer Research UK Manchester Institute, Institute of Cancer Sciences, Paterson Building, University of Manchester, Manchester, UK
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Blaszczyk M, Harmer NJ, Chirgadze DY, Ascher DB, Blundell TL. Achieving high signal-to-noise in cell regulatory systems: Spatial organization of multiprotein transmembrane assemblies of FGFR and MET receptors. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2015; 118:103-11. [PMID: 25957048 PMCID: PMC4832006 DOI: 10.1016/j.pbiomolbio.2015.04.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 04/23/2015] [Accepted: 04/24/2015] [Indexed: 01/12/2023]
Abstract
How is information communicated both within and between cells of living systems with high signal to noise? We discuss transmembrane signaling models involving two receptor tyrosine kinases: the fibroblast growth factor receptor (FGFR) and the MET receptor. We suggest that simple dimerization models might occur opportunistically giving rise to noise but cooperative clustering of the receptor tyrosine kinases observed in these systems is likely to be important for signal transduction. We propose that this may be a more general prerequisite for high signal to noise in transmembrane receptor signaling.
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Affiliation(s)
- Michal Blaszczyk
- Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1GA, UK
| | - Nicholas J Harmer
- The Henry Wellcome Building for Biocatalysis, University of Exeter, Stocker Road, Exeter EX4 4QD, UK
| | - Dimitri Y Chirgadze
- Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1GA, UK
| | - David B Ascher
- Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1GA, UK.
| | - Tom L Blundell
- Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1GA, UK.
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Theodoraki A, Hu Y, Poopalasundaram S, Oosterhof A, Guimond SE, Disterer P, Khoo B, Hauge-Evans AC, Jones PM, Turnbull JE, van Kuppevelt TH, Bouloux PM. Distinct patterns of heparan sulphate in pancreatic islets suggest novel roles in paracrine islet regulation. Mol Cell Endocrinol 2015; 399:296-310. [PMID: 25224485 DOI: 10.1016/j.mce.2014.09.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 08/18/2014] [Accepted: 09/10/2014] [Indexed: 11/29/2022]
Abstract
Heparan sulphate proteoglycans (HSPGs) exist in pancreatic beta cells, and HS seems to modulate important interactions in the islet microenvironment. However, the intra-islet structures of HS in health or altered glucose homeostasis are currently unknown. Here we show that distinct spatial distribution of HS motifs is present in islets in the adult, that intra-islet HS motifs are mostly conserved between rodents and humans, and that HS is abundant in glucagon producing islet alpha cells. In beta cells HS is characterised by 2-O, 6-O and N-sulphated moieties, whereas HS in alpha cells is N-acetylated, N-, and 2-O sulphated and low in 6-O groups. Differential expression of three HS modifying genes in alpha and beta cells was observed and may account for the different HS patterns. Furthermore, we found that FGF1 and FGF2 were present in alpha cells, whereas functional FGFRs exist in beta cells, but not in the alpha cell line aTC1-6, or in primary alpha cells in islets. FGF1 induced signalling was dependent on 2-O, and 6-O HS sulphation in beta cells, and HS desulphation reduced beta cell proliferation and potentiated oxidant induced apoptosis. In leptin resistant animals and in islets from streptozotocin treated rats there was a reduction in alpha cell HS expression. These data demonstrate the distinct HS expression patterns in alpha and beta islet cells and propose a novel role for alpha cells as a source of paracrine FGF ligands to neighbouring beta cells with specific cell-associated HS domains mediating the activation and diffusion of paracrine ligands.
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Affiliation(s)
| | - Youli Hu
- Centre for Neuroendocrinology, Royal Free Campus, UCL, London NW3 2QG, UK
| | | | - Arie Oosterhof
- Department of Biochemistry, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, 6500 HB Nijmegen, The Netherlands
| | - Scott E Guimond
- Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZE, UK
| | - Petra Disterer
- Centre for Neuroendocrinology, Royal Free Campus, UCL, London NW3 2QG, UK
| | - Bernard Khoo
- Centre for Neuroendocrinology, Royal Free Campus, UCL, London NW3 2QG, UK
| | - Astrid C Hauge-Evans
- Diabetes and Nutritional Sciences Division, School of Medicine, King's College London, Guy's Campus, London SE1 1UL, UK
| | - Peter M Jones
- Diabetes and Nutritional Sciences Division, School of Medicine, King's College London, Guy's Campus, London SE1 1UL, UK
| | - Jeremy E Turnbull
- Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZE, UK
| | - Toin H van Kuppevelt
- Department of Biochemistry, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, 6500 HB Nijmegen, The Netherlands
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Abstract
Numerous proteins, including cytokines and chemokines, enzymes and enzyme inhibitors, extracellular matrix proteins, and membrane receptors, bind heparin. Although they are traditionally classified as heparin-binding proteins, under normal physiological conditions these proteins actually interact with the heparan sulfate chains of one or more membrane or extracellular proteoglycans. Thus, they are more appropriately classified as heparan sulfate-binding proteins (HSBPs). This review provides an overview of the various modes of interaction between heparan sulfate and HSBPs, emphasizing biochemical and structural insights that improve our understanding of the many biological functions of heparan sulfate.
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Affiliation(s)
- Ding Xu
- Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, California 92093; ,
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Gutiérrez J, Cabrera D, Brandan E. Glypican-1 regulates myoblast response to HGF via Met in a lipid raft-dependent mechanism: effect on migration of skeletal muscle precursor cells. Skelet Muscle 2014; 4:5. [PMID: 24517345 PMCID: PMC3923899 DOI: 10.1186/2044-5040-4-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Accepted: 01/20/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Via the hepatocyte growth factor receptor (Met), hepatocyte growth factor (HGF) exerts key roles involving skeletal muscle development and regeneration. Heparan sulfate proteoglycans (HSPGs) are critical modulators of HGF activity, but the role of specific HSPGs in HGF regulation is poorly understood. Glypican-1 is the only HSPG expressed in myoblasts that localize in lipid raft membrane domains, controlling cell responses to extracellular stimuli. We determined if glypican-1 in these domains is necessary to stabilize the HGF-Met signaling complex and myoblast response to HGF. METHODS C2C12 myoblasts and a derived clone (C6) with low glypican-1 expression were used as an experimental model. The activation of Met, ERK1/2 and AKT in response to HGF was evaluated. The distribution of Met and its activated form in lipid raft domains, as well as its dependence on glypican-1, were characterized by sucrose density gradient fractionation in both cell types. Rescue experiments reexpressing glypican-1 or a chimeric glypican-1 fused to the transmembrane and cytoplasmic domains of mouse syndecan-1 or myoblast pretreatment with MβCD were conducted. In vitro and in vivo myoblast migration assays in response to HGF were also performed. RESULTS Glypican-1 localization in membrane raft domains was required for a maximum cell response to HGF. It stabilized Met and HGF in lipid raft domains, forming a signaling complex where the active phospho-Met receptor was concentrated. Glypican-1 also stabilized CD44 in a HGF-dependent manner. In addition, glypican-1 was required for in vitro and in vivo HGF-dependent myoblast migration. CONCLUSIONS Glypican-1 is a regulator of HGF-dependent signaling via Met in lipid raft domains.
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Affiliation(s)
| | | | - Enrique Brandan
- Centro de Regulación Celular y Patología (CRCP), Centro de Regeneración y Envejecimiento (CARE), Departamento de Biología Celular y Molecular, MIFAB, Pontificia Universidad Católica de Chile, Santiago, Chile.
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35
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Miyake N, Kosho T, Matsumoto N. Ehlers–Danlos Syndrome Associated with Glycosaminoglycan Abnormalities. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 802:145-59. [DOI: 10.1007/978-94-007-7893-1_10] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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D-glucuronyl C5-epimerase cell type specifically affects angiogenesis pathway in different prostate cancer cells. Tumour Biol 2013; 35:3237-45. [PMID: 24264315 DOI: 10.1007/s13277-013-1423-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Accepted: 11/12/2013] [Indexed: 01/08/2023] Open
Abstract
D-glucuronyl C5-epimerase (GLCE) is involved in breast and lung carcinogenesis as a potential tumor suppressor gene, acting through inhibition of tumor angiogenesis and invasion/metastasis pathways. However, in prostate tumors, increased GLCE expression is associated with advanced disease, suggesting versatile effects of GLCE in different cancers. To investigate further the potential cancer-promoting effect of GLCE in prostate cancer, GLCE was ectopically re-expressed in morphologically different LNCaP and PC3 prostate cancer cells. Transcriptional profiles of normal PNT2 prostate cells, LNCaP, PC3 and DU145 prostate cancer cells, and GLCE-expressing LNCaP and PC3 cells were determined. Comparative analysis revealed the genes whose expression was changed in prostate cancer cells compared with normal PNT2 cells, and those differently expressed between the cancer cell lines (ACTA2, IL6, SERPINE1, TAGLN, SEMA3A, and CDH2). GLCE re-expression influenced mainly angiogenesis-involved genes (ANGPT1, SERPINE1, IGF1, PDGFB, TNF, IL8, TEK, IFNA1, and IFNB1) but in a cell type-specific manner (from basic deregulation of angiogenesis in LNCaP cells to significant activation in PC3 cells). Invasion/metastasis pathway was also affected (MMP1, MMP2, MMP9, S100A4, ITGA1, ITGB3, ERBB2, and FAS). The obtained results suggest activation of angiogenesis as a main molecular mechanism of pro-oncogenic effect of GLCE in prostate cancer. GLCE up-regulation plus expression pattern of a panel of six genes, discriminating morphologically different prostate cancer cell sub-types, is suggested as a potential marker of aggressive prostate cancer.
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37
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Minsky BB, Nguyen TV, Peyton SR, Kaltashov IA, Dubin PL. Heparin decamer bridges a growth factor and an oligolysine by different charge-driven interactions. Biomacromolecules 2013; 14:4091-8. [PMID: 24107074 DOI: 10.1021/bm401227p] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Full-length heparin is widely used in tissue engineering applications due its multiple protein-binding sites that allow it to retain growth factor affinity while associating with oligopeptide components of the tissue scaffold. However, the extent to which oligopeptide coupling interferes with cognate protein binding is difficult to predict. To investigate such simultaneous interactions, we examined a well-defined ternary system comprised of acidic fibroblast growth factor (FGF), tetralysine (K4), with a heparin decamer (dp10) acting as a noncovalent coupler. Electrospray ionization mass spectrometry was used to assess binding affinities and complex stoichiometries as a function of ionic strength for dp10·K4 and FGF·dp10. The ionic strength dependence of K4·dp10 formation is qualitatively consistent with binding driven by the release of condensed counterions previously suggested for native heparin with divalent oligopeptides (Mascotti, D. P.; Lohman, T. M. Biochemistry 1995, 34, 2908-2915). On the other hand, FGF binding displays more complex ionic strength dependence, with higher salt resistance. Remarkably, dp10 that can bind two FGF molecules can only bind one tetralysine. The limited binding of K4 to dp10 suggests that the tetralysine might not block growth factor binding, and the 1:1:1 ternary complex is indeed observed. The analysis of mass distribution of the bound dp10 chains in FGF·dp10, FGF2·dp10, and FGF·dp10·K4 complexes indicated that higher degrees of dp10 sulfation promote the formation of FGF2·dp10 and FGF·dp10·K4. Thus, the selectivity of appropriately chosen short heparin chains could be used to modulate growth factor sequestration and release in a way not feasible with heterogeneous native heparin. In support of this, human hepatocellular carcinoma cells (HEP3Bs) treated with FGF·dp10·K4 were found to exhibit biological activity similar to cells treated with FGF.
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Affiliation(s)
- Burcu Baykal Minsky
- Departments of †Chemistry and ‡Chemical Engineering, University of Massachusetts , 710 North Pleasant Street, Amherst, Massachusetts 01003, United States
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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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39
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Bioengineered kidneys: new sights on a distant horizon. Int Urol Nephrol 2013; 46:477-80. [DOI: 10.1007/s11255-013-0570-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 09/17/2013] [Indexed: 10/26/2022]
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40
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Hung TJ, Chang WT, Tomiya N, Lee YC, Chang HT, Chen CJ, Kuo PH, Fan TC, Chang MDT. Basic amino acid residues of human eosinophil derived neurotoxin essential for glycosaminoglycan binding. Int J Mol Sci 2013; 14:19067-85. [PMID: 24065103 PMCID: PMC3794821 DOI: 10.3390/ijms140919067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 09/06/2013] [Accepted: 09/11/2013] [Indexed: 12/26/2022] Open
Abstract
Human eosinophil derived neurotoxin (EDN), a granule protein secreted by activated eosinophils, is a biomarker for asthma in children. EDN belongs to the human RNase A superfamily possessing both ribonucleolytic and antiviral activities. EDN interacts with heparin oligosaccharides and heparin sulfate proteoglycans on bronchial epithelial Beas-2B cells. In this study, we demonstrate that the binding of EDN to cells requires cell surface glycosaminoglycans (GAGs), and the binding strength between EDN and GAGs depends on the sulfation levels of GAGs. Furthermore, in silico computer modeling and in vitro binding assays suggest critical roles for the following basic amino acids located within heparin binding regions (HBRs) of EDN 34QRRCKN39 (HBR1), 65NKTRKN70 (HBR2), and 113NRDQRRD119 (HBR3) and in particular Arg35, Arg36, and Arg38 within HBR1, and Arg114 and Arg117 within HBR3. Our data suggest that sulfated GAGs play a major role in EDN binding, which in turn may be related to the cellular effects of EDN.
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Affiliation(s)
- Ta-Jen Hung
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu 300, Taiwan; E-Mails: (T.-J.H.); (W.-T.C.); (Y.-C.L.); (C.-J.C.); (P.-H.K.)
| | - Wei-Tang Chang
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu 300, Taiwan; E-Mails: (T.-J.H.); (W.-T.C.); (Y.-C.L.); (C.-J.C.); (P.-H.K.)
| | - Noboru Tomiya
- Department of Biology, Johns Hopkins University, Baltimore, MD 21218, USA; E-Mail:
| | - Yuan-Chuan Lee
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu 300, Taiwan; E-Mails: (T.-J.H.); (W.-T.C.); (Y.-C.L.); (C.-J.C.); (P.-H.K.)
- Department of Biology, Johns Hopkins University, Baltimore, MD 21218, USA; E-Mail:
| | - Hao-Teng Chang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 404, Taiwan; E-Mail:
| | - Chien-Jung Chen
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu 300, Taiwan; E-Mails: (T.-J.H.); (W.-T.C.); (Y.-C.L.); (C.-J.C.); (P.-H.K.)
| | - Ping-Hsueh Kuo
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu 300, Taiwan; E-Mails: (T.-J.H.); (W.-T.C.); (Y.-C.L.); (C.-J.C.); (P.-H.K.)
| | - Tan-chi Fan
- Stem Cell and Translational Cancer Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan 333, Taiwan; E-Mail:
| | - Margaret Dah-Tsyr Chang
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu 300, Taiwan; E-Mails: (T.-J.H.); (W.-T.C.); (Y.-C.L.); (C.-J.C.); (P.-H.K.)
- Department of Medical Science, National Tsing Hua University, Hsinchu 300, Taiwan
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +886-3-574-2463; Fax: +886-3-571-5934
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Müller T, Mizumoto S, Suresh I, Komatsu Y, Vodopiutz J, Dundar M, Straub V, Lingenhel A, Melmer A, Lechner S, Zschocke J, Sugahara K, Janecke AR. Loss of dermatan sulfate epimerase (DSE) function results in musculocontractural Ehlers-Danlos syndrome. Hum Mol Genet 2013; 22:3761-72. [PMID: 23704329 DOI: 10.1093/hmg/ddt227] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The sulfated polysaccharide dermatan sulfate (DS) forms proteoglycans with a number of distinct core proteins. Iduronic acid-containing domains in DS have a key role in mediating the functions of DS proteoglycans. Two tissue-specific DS epimerases, encoded by DSE and DSEL, and a GalNAc-4-O-sulfotransferase encoded by CHST14 are necessary for the formation of these domains. CHST14 mutations were previously identified for patients with the musculocontractural type of Ehlers-Danlos syndrome (MCEDS). We now identified a homozygous DSE missense mutation (c.803C>T, p.S268L) by the positional candidate approach in a male child with MCEDS, who was born to consanguineous parents. Heterologous expression of mutant full-length and soluble recombinant DSE proteins showed a loss of activity towards partially desulfated DS. Patient-derived fibroblasts also showed a significant reduction in epimerase activity. The amount of DS disaccharides was markedly decreased in the conditioned medium and the cell fraction from cultured fibroblasts of the patient when compared with a healthy control subject, whereas no apparent difference was observed in the chondroitin sulfate (CS) chains from the conditioned media. However, the total amount of CS disaccharides in the cell fraction from the patient was increased ∼1.5-fold, indicating an increased synthesis or a reduced conversion of CS chains in the cell fraction. Stable transfection of patient fibroblasts with a DSE expression vector increased the amount of secreted DS disaccharides. DSE deficiency represents a specific defect of DS biosynthesis. We demonstrate locus heterogeneity in MCEDS and provide evidence for the importance of DS in human development and extracellular matrix maintenance.
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Affiliation(s)
- Thomas Müller
- Department of Pediatrics I, Division of Human Genetics, Innsbruck Medical University, Anichstrasse 35, Innsbruck, Austria
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Gill VL, Aich U, Rao S, Pohl C, Zaia J. Disaccharide analysis of glycosaminoglycans using hydrophilic interaction chromatography and mass spectrometry. Anal Chem 2013; 85:1138-45. [PMID: 23234263 PMCID: PMC3557806 DOI: 10.1021/ac3030448] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Heparan sulfate (HS) and chondroitin sulfate/dermatan sulfate (CS/DS) glycosaminoglycans (GAGs) participate in many important biological processes. Quantitative disaccharide analysis of HS and CS/DS is essential for the characterization of GAGs and enables modeling of the GAG domain structure. Methods involving enzymatic digestion and chemical depolymerization have been developed to determine the type and location of sulfation/acetylation modifications as well as uronic acid epimerization. Enzymatic digestion generates disaccharides with Δ-4,5-unsaturation at the nonreducing end. Chemical depolymerization with nitrous acid retains the uronic acid epimerization. This work shows the use of hydrophilic interaction liquid chromatography mass spectrometry (HILIC-MS) for quantification of both enzyme-derived and nitrous acid depolymerization products for structural analysis of HS and CS/DS. This method enables biomedical researchers to determine complete disaccharide profiles on GAG samples using a single LC-MS platform.
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Affiliation(s)
- Vanessa Leah Gill
- Department of Biochemistry, Boston University School of Medicine, Boston, MA
| | | | | | - Chris Pohl
- Thermo Fisher Scientific, Sunnyvale, California
| | - Joseph Zaia
- Department of Biochemistry, Boston University School of Medicine, Boston, MA
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Chabrol E, Nurisso A, Daina A, Vassal-Stermann E, Thepaut M, Girard E, Vivès RR, Fieschi F. Glycosaminoglycans are interactants of Langerin: comparison with gp120 highlights an unexpected calcium-independent binding mode. PLoS One 2012; 7:e50722. [PMID: 23226363 PMCID: PMC3511376 DOI: 10.1371/journal.pone.0050722] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Accepted: 10/24/2012] [Indexed: 12/29/2022] Open
Abstract
Langerin is a C-type lectin specifically expressed in Langerhans cells. As recently shown for HIV, Langerin is thought to capture pathogens and mediate their internalisation into Birbeck Granules for elimination. However, the precise functions of Langerin remain elusive, mostly because of the lack of information on its binding properties and physiological ligands. Based on recent reports that Langerin binds to sulfated sugars, we conducted here a comparative analysis of Langerin interaction with mannose-rich HIV glycoprotein gp120 and glycosaminoglycan (GAGs), a family of sulfated polysaccharides expressed at the surface of most mammalian cells. Our results first revealed that Langerin bound to these different glycans through very distinct mechanisms and led to the identification of a novel, GAG-specific binding mode within Langerin. In contrast to the canonical lectin domain, this new binding site showed no Ca(2+)-dependency, and could only be detected in entire, trimeric extracellular domains of Langerin. Interestingly binding to GAGs, did not simply rely on a net charge effect, but rather on more discrete saccharide features, such as 6-O-sulfation, or iduronic acid content. Using molecular modelling simulations, we proposed a model of Langerin/heparin complex, which located the GAG binding site at the interface of two of the three Carbohydrate-recognition domains of the protein, at the edge of the a-helix coiled-coil. To our knowledge, the binding properties that we have highlighted here for Langerin, have never been reported for C-type lectins before. These findings provide new insights towards the understanding of Langerin biological functions.
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Affiliation(s)
- Eric Chabrol
- Groupe Membrane & Pathogens, Institut de Biologie Structurale, Université Joseph Fourier, Grenoble, France
- UMR 5075, CNRS, Grenoble, France
- Departement des sciences du vivant, CEA, Grenoble, France
| | - Alessandra Nurisso
- Département de Pharmacochimie, Université de Genève, Genève, Switzerland
| | - Antoine Daina
- Département de Pharmacochimie, Université de Genève, Genève, Switzerland
- Molecular Modeling Group, Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Emilie Vassal-Stermann
- UMR 5075, CNRS, Grenoble, France
- Departement des sciences du vivant, CEA, Grenoble, France
- Groupe SAGAG, Institut de Biologie Structurale, Université Joseph Fourier, Grenoble, France
| | - Michel Thepaut
- Groupe Membrane & Pathogens, Institut de Biologie Structurale, Université Joseph Fourier, Grenoble, France
- UMR 5075, CNRS, Grenoble, France
- Departement des sciences du vivant, CEA, Grenoble, France
| | - Eric Girard
- UMR 5075, CNRS, Grenoble, France
- Departement des sciences du vivant, CEA, Grenoble, France
- Groupe ELMA, Institut de Biologie Structurale, Université Joseph Fourier, Grenoble, France
| | - Romain R. Vivès
- UMR 5075, CNRS, Grenoble, France
- Departement des sciences du vivant, CEA, Grenoble, France
- Molecular Modeling Group, Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Franck Fieschi
- Groupe Membrane & Pathogens, Institut de Biologie Structurale, Université Joseph Fourier, Grenoble, France
- UMR 5075, CNRS, Grenoble, France
- Departement des sciences du vivant, CEA, Grenoble, France
- Institut Universitaire de France, Paris, France
- * E-mail:
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Despras G, Bernard C, Perrot A, Cattiaux L, Prochiantz A, Lortat-Jacob H, Mallet JM. Toward libraries of biotinylated chondroitin sulfate analogues: from synthesis to in vivo studies. Chemistry 2012; 19:531-40. [PMID: 23154924 DOI: 10.1002/chem.201202173] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 08/28/2012] [Indexed: 12/14/2022]
Abstract
Chondroitin sulfate-E (CS-E) oligosaccharidic analogues (di to hexa) were prepared from lactose. In these compounds, the 2-acetamido group was replaced by a hydroxyl group. This modification speeded up the synthesis, and large oligosaccharides were constructed in a few steps from a lactose-originated block. The protecting groups used were as follows; Fmoc for hydroxyl groups to be glycosylated, allyl group for anomeric position protection, and trichoroacetimidate leaving groups were used to prepare up to octasaccharides. We took advantage of the presence of allyl group to develop a click biotinylation, through its transformation into a 3-azido-2-hydroxyl propyl group in two steps (epoxidation and sodium azide epoxide opening). The biotinylating agent was a water-soluble propargylated and biotinylated triethylene glycol (PEG). By using surface plasmon resonance (SPR), it was shown that the di-, tetra-, and hexasaccharides display a binding affinity and selectivity toward HSF/GSF and CXCL12 similar to that of CS-E. A parallel study confirmed their mimicry of natural compounds, based on the hexasaccharide interaction with Otx2, a homeodomain protein involved in brain maturation, thus validating our simplification approach to synthesize bioactive GAG.
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Affiliation(s)
- Guillaume Despras
- UPMC Paris 06, UMR 7203, Laboratoire des BioMolécules, Université P. et M. Curie, 4 Place Jussieu, 75005 Paris, France
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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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Franco SJ, Müller U. Extracellular matrix functions during neuronal migration and lamination in the mammalian central nervous system. Dev Neurobiol 2012; 71:889-900. [PMID: 21739613 DOI: 10.1002/dneu.20946] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Extracellular matrix (ECM) glycoproteins are expressed in the central nervous system (CNS) in complex and developmentally regulated patterns. The ECM provides a number of critical functions in the CNS, contributing both to the overall structural organization of the CNS and to control of individual cells. At the cellular level, the ECM affects its functions by a wide range of mechanisms, including providing structural support to cells, regulating the activity of second messenger systems, and controlling the distribution and local concentration of growth and differentiation factors. Perhaps the most well known role of the ECM is as a substrate on which motile cells can migrate. Genetic, cell biological, and biochemical studies provide strong evidence that ECM glycoproteins such as laminins, tenascins, and proteoglycans control neuronal migration and positioning in several regions of the developing and adult brain. Recent findings have also shed important new insights into the cellular and molecular mechanisms by which reelin regulates migration. Here we will summarize these findings, emphasizing the emerging concept that ECM glycoproteins promote different modes of neuronal migration such as radial, tangential, and chain migration. We also discuss several studies demonstrating that mutations in ECM glycoproteins can alter neuronal positioning by cell nonautonomous mechanisms that secondarily affect migrating neurons.
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Affiliation(s)
- Santos J Franco
- Department of Cell Biology, Dorris Neuroscience Center, The Scripps Research Institute, La Jolla, California 92037, USA.
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Mostovich LA, Prudnikova TY, Kondratov AG, Gubanova NV, Kharchenko OA, Kutsenko OS, Vavilov PV, Haraldson K, Kashuba VI, Ernberg I, Zabarovsky ER, Grigorieva EV. The TCF4/β-catenin pathway and chromatin structure cooperate to regulate D-glucuronyl C5-epimerase expression in breast cancer. Epigenetics 2012; 7:930-9. [PMID: 22805760 DOI: 10.4161/epi.21199] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
D-glucuronyl C5-epimerase (GLCE) is a potential tumor-suppressor gene involved in heparan sulfate biosynthesis. GLCE expression is significantly decreased in breast tumors; however, the underlying molecular mechanisms remain unclear. This study examined the possible epigenetic mechanisms for GLCE inactivation in breast cancer. Very little methylation of the GLCE promoter region was detected in breast tumors in vivo and in breast cancer cells (MCF7 and T47D) in vitro and GLCE expression in breast cancer cells was not altered by 5-deoxyazacytidine (5-aza-dC) treatment, suggesting that promoter methylation is not involved in regulating GLCE expression. Chromatin activation by Trichostatin A (TSA) or 5-aza-dC/TSA treatment increased GLCE expression by two to 3-fold due to an increased interaction between the GLCE promoter and the TCF4/β-catenin transactivation complex, or H3K9ac and H3K4Me3 histone modifications. However, ectopic expression of TCF4/β-catenin was not sufficient to activate GLCE expression in MCF7 cells, suggesting that chromatin structure plays a key role in GLCE regulation. Although TSA treatment significantly repressed canonical WNT signaling in MCF7 cells, it did not influence endogenous TCF4/β-catenin mRNA levels and activated TCF4/β-catenin-driven transcription from the GLCE promoter, indicating GLCE as a novel target for TCF4/β-catenin complex in breast cancer cells. A correlation was observed between GLCE, TCF4 and β-catenin expression in breast cancer cells and primary tumors, suggesting an important role for TCF4/β-catenin in regulating GLCE expression both in vitro and in vivo. Taken together, the results indicate that GLCE expression in breast cancer is regulated by a combination of chromatin structure and TCF4/β-catenin complex activity.
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Ross J, Gherardi E, Mallorqui-Fernandez N, Bocci M, Sobkowicz A, Rees M, Rowe A, Ellmerich S, Massie I, Soeda J, Selden C, Hodgson H. Protein engineered variants of hepatocyte growth factor/scatter factor promote proliferation of primary human hepatocytes and in rodent liver. Gastroenterology 2012; 142:897-906. [PMID: 22178588 DOI: 10.1053/j.gastro.2011.12.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Revised: 11/11/2011] [Accepted: 12/01/2011] [Indexed: 01/18/2023]
Abstract
BACKGROUND & AIMS Hepatocyte growth factor/scatter factor (HGF/SF) stimulates hepatocyte DNA synthesis and protects against apoptosis; in vivo it promotes liver regeneration and reduces fibrosis. However, its therapeutic value is limited by its complex domain structure, high cost of production, instability, and poor tissue penetration due to sequestration by heparin sulfate proteoglycans (HSPGs). METHODS Using protein engineering techniques, we created a full-length form of HGF/SF (called HP21) and a form of the small, naturally occurring HGF/SF fragment, NK1 (called 1K1), which have reduced affinity for HSPG. We characterized the stability and proliferative and anti-apoptotic effects of these variants in primary human hepatocytes and in rodents. RESULTS Analytical ultracentrifugation showed that 1K1 and NK1 were more stable than the native, full-length protein. All 4 forms of HGF/SF induced similar levels of DNA synthesis in human hepatocytes; 1K1 and NK1 required heparin, an HSPG analogue, for full agonistic activity. All the proteins reduced levels of Fas ligand-mediated apoptosis, reducing the activity of caspase-3/7 and cleavage of poly(adenosine diphosphate-ribose) polymerase. 1K1 was more active than NK1 in rodents; in healthy mice, 1K1 significantly increased hepatocyte DNA synthesis, and in mice receiving carbon tetrachloride, it reduced fibrosis. In rats, after 70% partial hepatectomy, daily administration of 1K1 for 5 days significantly increased liver mass and the bromodeoxyuridine labeling index compared with mice given NK1. CONCLUSIONS 1K1, an engineered form of the small, naturally occurring HGF/SF fragment NK1, has reduced affinity for HSPG and exerts proliferative and antiapoptotic effects in cultured hepatocytes. In rodents, 1K1 has antifibrotic effects and promotes liver regeneration. The protein has better stability and is easier to produce than HGF/SF and might be developed as a therapeutic for acute and chronic liver disease.
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Affiliation(s)
- Jacob Ross
- UCL Hepatology, Royal Free Campus, University College London, London, England, UK
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Thelin MA, Svensson KJ, Shi X, Bagher M, Axelsson J, Isinger-Ekstrand A, van Kuppevelt TH, Johansson J, Nilbert M, Zaia J, Belting M, Maccarana M, Malmström A. Dermatan sulfate is involved in the tumorigenic properties of esophagus squamous cell carcinoma. Cancer Res 2012; 72:1943-52. [PMID: 22350411 DOI: 10.1158/0008-5472.can-11-1351] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Extracellular matrix, either produced by cancer cells or by cancer-associated fibroblasts, influences angiogenesis, invasion, and metastasis. Chondroitin/dermatan sulfate (CS/DS) proteoglycans, which occur both in the matrix and at the cell surface, play important roles in these processes. The unique feature that distinguishes DS from CS is the presence of iduronic acid (IdoA) in DS. Here, we report that CS/DS is increased five-fold in human biopsies of esophagus squamous cell carcinoma (ESCC), an aggressive tumor with poor prognosis, as compared with normal tissue. The main IdoA-producing enzyme, DS epimerase 1 (DS-epi1), together with the 6-O- and 4-O-sulfotransferases, were highly upregulated in ESCC biopsies. Importantly, CS/DS structure in patient tumors was significantly altered compared with normal tissue, as determined by sensitive mass spectrometry. To further understand the roles of IdoA in tumor development, DS-epi1 expression, and consequently IdoA content, was downregulated in ESCC cells. IdoA-deficient cells exhibited decreased migration and invasion capabilities in vitro, which was associated with reduced cellular binding of hepatocyte growth factor, inhibition of pERK-1/2 signaling, and deregulated actin cytoskeleton dynamics and focal adhesion formation. Our findings show that IdoA in DS influences tumorigenesis by affecting cancer cell behavior. Therefore, downregulation of IdoA by DS-epi1 inhibitors may represent a new anticancer therapy.
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Affiliation(s)
- Martin A Thelin
- Department of Experimental Medical Science, Biomedical Center D12, Lund University, Lund, Sweden.
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Abstract
Heparin and glycosaminoglycans (GAGs) related structurally to heparin, notably heparan sulphate, bind to most, if not all, chemokines and many growth factors. The chemokine and growth factor interactions with GAGs localise the peptide mediators to specific sites in tissues and influence their stability and function. This chapter discusses the nature of these interactions and the effect on the function of a number of chemokines (PF-4, interleukin-8, RANTES and SDF-1) and growth factors (FGF, HGF, VEGF) in normal physiology and the disease setting. Novel therapeutic interventions that target chemokine and growth factor interactions with GAGs are also discussed.
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