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Niwa A, Taniguchi T, Tomita H, Okada H, Kinoshita T, Mizutani C, Matsuo M, Imaizumi Y, Kuroda T, Ichihashi K, Sugiyama T, Kanayama T, Yamaguchi Y, Sugie S, Matsuhashi N, Hara A. Conditional ablation of heparan sulfate expression in stromal fibroblasts promotes tumor growth in vivo. PLoS One 2023; 18:e0281820. [PMID: 36809261 PMCID: PMC9942975 DOI: 10.1371/journal.pone.0281820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 02/02/2023] [Indexed: 02/23/2023] Open
Abstract
Heparan sulfate (HS) is a glycocalyx component present in the extracellular matrix and cell-surface HS proteoglycans (HSPGs). Although HSPGs are known to play functional roles in multiple aspects of tumor development and progression, the effect of HS expression in the tumor stroma on tumor growth in vivo remains unclear. We conditionally deleted Ext1, which encodes a glycosyltransferase essential for the biosynthesis of HS chains, using S100a4-Cre (S100a4-Cre; Ext1f/f) to investigate the role of HS in cancer-associated fibroblasts, which is the main component of the tumor microenvironment. Subcutaneous transplantation experiments with murine MC38 colon cancer and Pan02 pancreatic cancer cells demonstrated substantially larger subcutaneous tumors in S100a4-Cre; Ext1f/f mice. Additionally, the number of myofibroblasts observed in MC38 and Pan02 subcutaneous tumors of S100a4-Cre; Ext1f/f mice decreased. Furthermore, the number of intratumoral macrophages decreased in MC38 subcutaneous tumors in S100a4-Cre; Ext1f/f mice. Finally, the expression of matrix metalloproteinase-7 (MMP-7) markedly increased in Pan02 subcutaneous tumors in S100a4-Cre; Ext1f/f mice, suggesting that it may contribute to rapid growth. Therefore, our study demonstrates that the tumor microenvironment with HS-reduced fibroblasts provides a favorable environment for tumor growth by affecting the function and properties of cancer-associated fibroblasts, macrophages, and cancer cells.
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Affiliation(s)
- Ayumi Niwa
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu City, Japan
| | - Toshiaki Taniguchi
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu City, Japan
| | - Hiroyuki Tomita
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu City, Japan
- * E-mail:
| | - Hideshi Okada
- Department of Emergency and Disaster Medicine, Gifu University Graduate School of Medicine, Gifu City, Japan
| | - Takamasa Kinoshita
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu City, Japan
- Department of Neurosurgery, Gifu University Graduate School of Medicine, Gifu City, Japan
| | - Chika Mizutani
- Department of Gastroenterological Surgery/Pediatric Surgery, Gifu University Graduate School of Medicine, Gifu City, Japan
| | - Mikiko Matsuo
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu City, Japan
| | - Yuko Imaizumi
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu City, Japan
| | - Takahito Kuroda
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu City, Japan
| | - Koki Ichihashi
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu City, Japan
| | - Takaaki Sugiyama
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu City, Japan
| | - Tomohiro Kanayama
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu City, Japan
| | - Yu Yamaguchi
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California, United States of America
| | - Shigeyuki Sugie
- Department of Pathology, Asahi University Hospital, Gifu, Japan
| | - Nobuhisa Matsuhashi
- Department of Gastroenterological Surgery/Pediatric Surgery, Gifu University Graduate School of Medicine, Gifu City, Japan
| | - Akira Hara
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu City, Japan
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Gigliotti CL, Boggio E, Favero F, Incarnato D, Santoro C, Oliviero S, Rojo JM, Zucchelli S, Persichetti F, Baldanzi G, Dianzani U, Corà D. Specific transcriptional programs differentiate ICOS from CD28 costimulatory signaling in human Naïve CD4+ T cells. Front Immunol 2022; 13:915963. [PMID: 36131938 PMCID: PMC9484324 DOI: 10.3389/fimmu.2022.915963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
Costimulatory molecules of the CD28 family play a crucial role in the activation of immune responses in T lymphocytes, complementing and modulating signals originating from the T-cell receptor (TCR) complex. Although distinct functional roles have been demonstrated for each family member, the specific signaling pathways differentiating ICOS- from CD28-mediated costimulation during early T-cell activation are poorly characterized. In the present study, we have performed RNA-Seq-based global transcriptome profiling of anti-CD3-treated naïve CD4+ T cells upon costimulation through either inducible costimulator (ICOS) or CD28, revealing a set of signaling pathways specifically associated with each signal. In particular, we show that CD3/ICOS costimulation plays a major role in pathways related to STAT3 function and osteoarthritis (OA), whereas the CD3/CD28 axis mainly regulates p38 MAPK signaling. Furthermore, we report the activation of distinct immunometabolic pathways, with CD3/ICOS costimulation preferentially targeting glycosaminoglycans (GAGs) and CD3/CD28 regulating mitochondrial respiratory chain and cholesterol biosynthesis. These data suggest that ICOS and CD28 costimulatory signals play distinct roles during the activation of naïve T cells by modulating distinct sets of immunological and immunometabolic genes.
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Affiliation(s)
- Casimiro Luca Gigliotti
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
| | - Elena Boggio
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
| | - Francesco Favero
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
- CAAD - Center for Translational Research on Autoimmune and Allergic Disease, Novara, Italy
| | - Danny Incarnato
- Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Groningen, Netherlands
| | - Claudio Santoro
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
- CAAD - Center for Translational Research on Autoimmune and Allergic Disease, Novara, Italy
| | - Salvatore Oliviero
- Dipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, Torino, Italy
- Italian Institute for Genomic Medicine (IIGM), Torino, Italy
| | - Josè Maria Rojo
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Cientificas (CSIC), Madrid, Spain
| | - Silvia Zucchelli
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
- CAAD - Center for Translational Research on Autoimmune and Allergic Disease, Novara, Italy
| | - Francesca Persichetti
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
| | - Gianluca Baldanzi
- Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
- CAAD - Center for Translational Research on Autoimmune and Allergic Disease, Novara, Italy
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - Umberto Dianzani
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
- Biochemical Chemistry, “Maggiore della Carità” University Hospital, Novara, Italy
- *Correspondence: Umberto Dianzani,
| | - Davide Corà
- Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
- CAAD - Center for Translational Research on Autoimmune and Allergic Disease, Novara, Italy
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
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3
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Hsu HP, Chen YT, Chen YY, Lin CY, Chen PY, Liao SY, Lim CCY, Yamaguchi Y, Hsu CL, Dzhagalov IL. Heparan sulfate is essential for thymus growth. J Biol Chem 2021; 296:100419. [PMID: 33600795 PMCID: PMC7974028 DOI: 10.1016/j.jbc.2021.100419] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 02/03/2021] [Accepted: 02/11/2021] [Indexed: 12/21/2022] Open
Abstract
Thymus organogenesis and T cell development are coordinated by various soluble and cell-bound molecules. Heparan sulfate (HS) proteoglycans can interact with and immobilize many soluble mediators, creating fields or gradients of secreted ligands. While the role of HS in the development of many organs has been studied extensively, little is known about its function in the thymus. Here, we examined the distribution of HS in the thymus and the effect of its absence on thymus organogenesis and T cell development. We found that HS was expressed most abundantly on the thymic fibroblasts and at lower levels on endothelial, epithelial, and hematopoietic cells. To study the function of HS in the thymus, we eliminated most of HS in this organ by genetically disrupting the glycosyltransferase Ext1 that is essential for its synthesis. The absence of HS greatly reduced the size of the thymus in fetal thymic organ cultures and in vivo, in mice, and decreased the production of T cells. However, no specific blocks in T cell development were observed. Wild-type thymic fibroblasts were able to physically bind the homeostatic chemokines CCL19, CCL21, and CXCL12 ex vivo. However, this binding was abolished upon HS degradation, disrupting the CCL19/CCL21 chemokine gradients and causing impaired migration of dendritic cells in thymic slices. Thus, our results show that HS plays an essential role in the development and growth of the thymus and in regulating interstitial cell migration.
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Affiliation(s)
- Hsuan-Po Hsu
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Yun-Tzu Chen
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Yu-Ying Chen
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Chih-Yu Lin
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Po-Yu Chen
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Shio-Yi Liao
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | | | - Yu Yamaguchi
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California, USA
| | - Chia-Lin Hsu
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan
| | - Ivan L Dzhagalov
- Institute of Microbiology and Immunology, National Yang-Ming University, Taipei, Taiwan.
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4
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Lewejohann L, Pallerla SR, Schreiber RS, Gerula J, Grobe K. Cerebellar Morphology and Behavioral Profiles in Mice Lacking Heparan Sulfate Ndst Gene Function. J Dev Biol 2020; 8:jdb8030013. [PMID: 32664575 PMCID: PMC7560088 DOI: 10.3390/jdb8030013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/06/2020] [Accepted: 07/09/2020] [Indexed: 11/16/2022] Open
Abstract
Disruption of the Heparan sulfate (HS)-biosynthetic gene N-acetylglucosamine N-Deacetylase/N-sulfotransferase 1 (Ndst1) during nervous system development causes malformations that are composites of those caused by mutations of multiple HS binding growth factors and morphogens. However, the role of Ndst function in adult brain physiology is less explored. Therefore, we generated mice bearing a Purkinje-cell-specific deletion in Ndst1 gene function by using Cre/loxP technology under the control of the Purkinje cell protein 2 (Pcp2/L7) promotor, which results in HS undersulfation. We observed that mutant mice did not show overt changes in the density or organization of Purkinje cells in the adult cerebellum, and behavioral tests also demonstrated normal cerebellar function. This suggested that postnatal Purkinje cell development and homeostasis are independent of Ndst1 function, or that impaired HS sulfation upon deletion of Ndst1 function may be compensated for by other Purkinje cell-expressed Ndst isoforms. To test the latter possibility, we additionally deleted the second Purkinje-cell expressed Ndst family member, Ndst2. This selectively abolished reproductive capacity of compound mutant female, but not male, mice, suggesting that ovulation, gestation, or female reproductive behavior specifically depends on Ndst-dependent HS sulfation in cells types that express Cre under Pcp2/L7 promotor control.
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Affiliation(s)
- Lars Lewejohann
- Department of Behavioral Biology, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany; (L.L.); (R.S.S.); (J.G.)
| | - Srinivas R. Pallerla
- Institute of Tropical Medicine, University of Tübingen, 72074 Tübingen, Germany;
| | - Rebecca S. Schreiber
- Department of Behavioral Biology, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany; (L.L.); (R.S.S.); (J.G.)
| | - Joanna Gerula
- Department of Behavioral Biology, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany; (L.L.); (R.S.S.); (J.G.)
| | - Kay Grobe
- Institute of Physiological Chemistry and Pathobiochemistry, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
- Correspondence: ; Tel.: +49-251-83-52289
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Gulberti S, Mao X, Bui C, Fournel-Gigleux S. The role of heparan sulfate maturation in cancer: A focus on the 3O-sulfation and the enigmatic 3O-sulfotransferases (HS3STs). Semin Cancer Biol 2020; 62:68-85. [DOI: 10.1016/j.semcancer.2019.10.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 10/10/2019] [Accepted: 10/11/2019] [Indexed: 01/05/2023]
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6
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Collins LE, Troeberg L. Heparan sulfate as a regulator of inflammation and immunity. J Leukoc Biol 2018; 105:81-92. [PMID: 30376187 DOI: 10.1002/jlb.3ru0618-246r] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/30/2018] [Accepted: 10/01/2018] [Indexed: 12/19/2022] Open
Abstract
Heparan sulfate is found on the surface of most cell types, as well as in basement membranes and extracellular matrices. Its strong anionic properties and highly variable structure enable this glycosaminoglycan to provide binding sites for numerous protein ligands, including many soluble mediators of the immune system, and may promote or inhibit their activity. The formation of ligand binding sites on heparan sulfate (HS) occurs in a tissue- and context-specific fashion through the action of several families of enzymes, most of which have multiple isoforms with subtly different specificities. Changes in the expression levels of these biosynthetic enzymes occur in response to inflammatory stimuli, resulting in structurally different HS and acquisition or loss of binding sites for immune mediators. In this review, we discuss the multiple roles for HS in regulating immune responses, and the evidence for inflammation-associated changes to HS structure.
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Affiliation(s)
- Laura E Collins
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Linda Troeberg
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
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7
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Impact of the gut microbiota on enhancer accessibility in gut intraepithelial lymphocytes. Proc Natl Acad Sci U S A 2016; 113:14805-14810. [PMID: 27911843 DOI: 10.1073/pnas.1617793113] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The gut microbiota impacts many aspects of host biology including immune function. One hypothesis is that microbial communities induce epigenetic changes with accompanying alterations in chromatin accessibility, providing a mechanism that allows a community to have sustained host effects even in the face of its structural or functional variation. We used Assay for Transposase-Accessible Chromatin with high-throughput sequencing (ATAC-seq) to define chromatin accessibility in predicted enhancer regions of intestinal αβ+ and γδ+ intraepithelial lymphocytes purified from germ-free mice, their conventionally raised (CONV-R) counterparts, and mice reared germ free and then colonized with CONV-R gut microbiota at the end of the suckling-weaning transition. Characterizing genes adjacent to traditional enhancers and super-enhancers revealed signaling networks, metabolic pathways, and enhancer-associated transcription factors affected by the microbiota. Our results support the notion that epigenetic modifications help define microbial community-affiliated functional features of host immune cell lineages.
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8
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Tkachyova I, Fan X, LamHonWah AM, Fedyshyn B, Tein I, Mahuran DJ, Schulze A. NDST1 Preferred Promoter Confirmation and Identification of Corresponding Transcriptional Inhibitors as Substrate Reduction Agents for Multiple Mucopolysaccharidosis Disorders. PLoS One 2016; 11:e0162145. [PMID: 27657498 PMCID: PMC5033324 DOI: 10.1371/journal.pone.0162145] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 08/17/2016] [Indexed: 01/25/2023] Open
Abstract
The stepwise degradation of glycosaminoglycans (GAGs) is accomplished by twelve lysosomal enzymes. Deficiency in any of these enzymes will result in the accumulation of the intermediate substrates on the pathway to the complete turnover of GAGs. The accumulation of these undegraded substrates in almost any tissue is a hallmark of all Mucopolysaccharidoses (MPS). Present therapeutics based on enzyme replacement therapy and bone marrow transplantation have low effectiveness for the treatment of MPS with neurological complications since enzymes used in these therapies are unable to cross the blood brain barrier. Small molecule-based approaches are more promising in addressing neurological manifestations. In this report we identify a target for developing a substrate reduction therapy (SRT) for six MPS resulting from the abnormal degradation of heparan sulfate (HS). Using the minimal promoter of NDST1, one of the first modifying enzymes of HS precursors, we established a luciferase based reporter gene assay capable of identifying small molecules that could potentially reduce HS maturation and therefore lessen HS accumulation in certain MPS. From the screen of 1,200 compounds comprising the Prestwick Chemical library we identified SAHA, a histone deacetylase inhibitor, as the drug that produced the highest inhibitory effects in the reporter assay. More importantly SAHA treated fibroblasts expressed lower levels of endogenous NDST1 and accumulated less 35S GAGs in patient cells. Thus, by using our simple reporter gene assay we have demonstrated that by inhibiting the transcription of NDST1 with small molecules, identified by high throughput screening, we can also reduce the level of sulfated HS substrate in MPS patient cells, potentially leading to SRT.
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Affiliation(s)
- Ilona Tkachyova
- Genetics and Genome Biology, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Xiaolian Fan
- Genetics and Genome Biology, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Anne-Marie LamHonWah
- Genetics and Genome Biology, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Bohdana Fedyshyn
- Genetics and Genome Biology, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ingrid Tein
- Genetics and Genome Biology, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
- Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Don J. Mahuran
- Genetics and Genome Biology, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Andreas Schulze
- Genetics and Genome Biology, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada
- * E-mail:
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Ghiselli G, Maccarana M. Drugs affecting glycosaminoglycan metabolism. Drug Discov Today 2016; 21:1162-9. [PMID: 27217160 DOI: 10.1016/j.drudis.2016.05.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 04/07/2016] [Accepted: 05/13/2016] [Indexed: 01/02/2023]
Abstract
Glycosaminoglycans (GAGs) are charged polysaccharides ubiquitously present at the cell surface and in the extracellular matrix. GAGs are crucial for cellular homeostasis, and their metabolism is altered during pathological processes. However, little consideration has been given to the regulation of the GAG milieu through pharmacological interventions. In this review, we provide a classification of small molecules affecting GAG metabolism based on their mechanism of action. Furthermore, we present evidence to show that clinically approved drugs affect GAG metabolism and that this could contribute to their therapeutic benefit.
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Affiliation(s)
- Giancarlo Ghiselli
- Glyconova Srl, Parco Scientifico Silvano Fumero, Via Ribes 5, 10010 Colleretto Giacosa (TO), Italy.
| | - Marco Maccarana
- Department of Experimental Medical Science, Biomedical Center C12, Lund University, Tornavägen 10, SE-221 84 Lund, Sweden
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10
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Li JP, Kusche-Gullberg M. Heparan Sulfate: Biosynthesis, Structure, and Function. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2016; 325:215-73. [PMID: 27241222 DOI: 10.1016/bs.ircmb.2016.02.009] [Citation(s) in RCA: 176] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Heparan sulfate (HS) proteoglycans (PGs) are ubiquitously expressed on cell surfaces and in the extracellular matrix of most animal tissues, having essential functions in development and homeostasis, as well as playing various roles in disease processes. The functions of HSPGs are mainly dependent on interactions between the HS-side chains with a variety of proteins including cytokines, growth factors, and their receptors. In a given HS polysaccharide, negatively charged sulfate and carboxylate groups are arranged in various types of domains, generated through strictly regulated biosynthetic reactions and with enormous potential for structural variability. The mode of HS-protein interactions is assessed through binding experiments using saccharides of defined composition in vitro, signaling assays in cell models where HS structures are manipulated, and targeted disruption of genes for biosynthetic enzymes in animals (mouse, zebrafish, Drosophila, and Caenorhabditis elegans) followed by phenotype analysis. Whereas some protein ligands appear to require strictly defined HS structure, others bind to variable saccharide domains without apparent dependence on distinct saccharide sequence. These findings raise intriguing questions concerning the functional significance of regulation in HS biosynthesis and the potential for development of therapeutics targeting HS-protein interactions.
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Affiliation(s)
- J-P Li
- Department of Medical Biochemistry and Microbiology, University of Uppsala, Uppsala, Sweden; SciLifeLab, University of Uppsala, Uppsala, Sweden.
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11
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Heparan Sulfate Modulates Neutrophil and Endothelial Function in Antibacterial Innate Immunity. Infect Immun 2015; 83:3648-56. [PMID: 26150541 DOI: 10.1128/iai.00545-15] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 06/26/2015] [Indexed: 12/24/2022] Open
Abstract
Recently, we showed that endothelial heparan sulfate facilitates entry of a bacterial pathogen into the central nervous system. Here, we show that normal bactericidal activity of neutrophils is influenced by the sulfation pattern of heparan sulfate. Inactivation of heparan sulfate uronyl 2-O-sulfotransferase (Hs2st) in neutrophils substantially reduced their bactericidal activity, and Hs2st deficiency rendered mice more susceptible to systemic infection with the pathogenic bacterium group B Streptococcus. Specifically, altered sulfation of heparan sulfate in mutant neutrophils affected formation of neutrophil extracellular traps while not influencing phagocytosis, production of reactive oxygen species, or secretion of granular proteases. Heparan sulfate proteoglycan(s) is present in neutrophil extracellular traps, modulates histone affinity, and modulates their microbial activity. Hs2st-deficient brain endothelial cells show enhanced binding to group B Streptococcus and are more susceptible to apoptosis, likely contributing to the observed increase in dissemination of group B Streptococcus into the brain of Hs2st-deficient mice following intravenous challenge. Taken together, our data provide strong evidence that heparan sulfate from both neutrophils and the endothelium plays important roles in modulating innate immunity.
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12
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Mizumoto S, Yamada S, Sugahara K. Human genetic disorders and knockout mice deficient in glycosaminoglycan. BIOMED RESEARCH INTERNATIONAL 2014; 2014:495764. [PMID: 25126564 PMCID: PMC4122003 DOI: 10.1155/2014/495764] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 06/08/2014] [Indexed: 12/20/2022]
Abstract
Glycosaminoglycans (GAGs) are constructed through the stepwise addition of respective monosaccharides by various glycosyltransferases and maturated by epimerases and sulfotransferases. The structural diversity of GAG polysaccharides, including their sulfation patterns and sequential arrangements, is essential for a wide range of biological activities such as cell signaling, cell proliferation, tissue morphogenesis, and interactions with various growth factors. Studies using knockout mice of enzymes responsible for the biosynthesis of the GAG side chains of proteoglycans have revealed their physiological functions. Furthermore, mutations in the human genes encoding glycosyltransferases, sulfotransferases, and related enzymes responsible for the biosynthesis of GAGs cause a number of genetic disorders including chondrodysplasia, spondyloepiphyseal dysplasia, and Ehlers-Danlos syndromes. This review focused on the increasing number of glycobiological studies on knockout mice and genetic diseases caused by disturbances in the biosynthetic enzymes for GAGs.
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Affiliation(s)
- Shuji Mizumoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
| | - Shuhei Yamada
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
| | - Kazuyuki Sugahara
- Laboratory of Proteoglycan Signaling and Therapeutics, Frontier Research Center for Post-Genomic Science and Technology, Graduate School of Life Science, Hokkaido University, West-11, North-21, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
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13
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Synthetic di-sulfated iduronic acid attenuates asthmatic response by blocking T-cell recruitment to inflammatory sites. Proc Natl Acad Sci U S A 2014; 111:8173-8. [PMID: 24835176 DOI: 10.1073/pnas.1319870111] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Identification of carbohydrate sequences that determine affinity to specific chemokines is a critical step for strategies to interfere with chemokine-mediated leukocyte trafficking. Here, we first characterized the development of allergic asthma in Tie2-dependent and inducible Ext1-knockout (Tie2-Ext1(iKO)) mice. We showed that heparan sulfate is essential for leukocyte recruitment in the peribronchial region and bronchoalveolar lavage fluid (BALF), and is crucial for induction of airway hyperresponsiveness. Our glycan microarray showed a unique affinity profile of chemokine CCL20 to substructures of heparin and heparin-like oligo/di/monosaccharides. Among them, we identified a synthetic and not naturally occurring monosaccharide, 2,4-O-di-sulfated iduronic acid (Di-S-IdoA), as a potential inhibitor for CCL20-heparan sulfate interaction. Mice injected with Di-S-IdoA via tail vain or nasal inhalation showed attenuated leukocyte recruitment into inflammatory sites and BALF. These results demonstrate a critical role of chemokine-heparan sulfate interaction in the asthma development and Di-S-IdoA as a potential drug for asthma treatment.
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Sterner E, Li L, Paul P, Beaudet JM, Liu J, Linhardt RJ, Dordick JS. Assays for determining heparan sulfate and heparin O-sulfotransferase activity and specificity. Anal Bioanal Chem 2014; 406:525-36. [PMID: 24271188 PMCID: PMC3901155 DOI: 10.1007/s00216-013-7470-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Revised: 10/23/2013] [Accepted: 10/25/2013] [Indexed: 01/05/2023]
Abstract
O-sulfotransferases (OSTs) are critical enzymes in the cellular biosynthesis of the biologically and pharmacologically important heparan sulfate and heparin. Recently, these enzymes have been cloned and expressed in bacteria for application in the chemoenzymatic synthesis of glycosaminoglycan-based drugs. OST activity assays have largely relied on the use of radioisotopic methods using [(35)S] 3'-phosphoadenosine-5'-phosphosulfate and scintillation counting. Herein, we examine alternative assays that are more compatible with a biomanufacturing environment. A high throughput microtiter-based approach is reported that relies on a coupled bienzymic colorimetric assay for heparan sulfate and heparin OSTs acting on polysaccharide substrates using arylsulfotransferase-IV and p-nitrophenylsulfate as a sacrificial sulfogroup donor. A second liquid chromatography-mass spectrometric assay, for heparan sulfate and heparin OSTs acting on structurally defined oligosaccharide substrates, is also reported that provides additional information on the number and positions of the transferred sulfo groups within the product. Together, these assays allow quantitative and mechanistic information to be obtained on OSTs that act on heparan sulfate and heparin precursors.
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Affiliation(s)
- Eric Sterner
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Lingyun Li
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Priscilla Paul
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Julie M. Beaudet
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Jian Liu
- Department of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Robert J. Linhardt
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
- Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
- Department of Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Jonathan S. Dordick
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
- Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
- Department of Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
- Department of Material Sciences, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
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Reijmers RM, Spaargaren M, Pals ST. Heparan sulfate proteoglycans in the control of B cell development and the pathogenesis of multiple myeloma. FEBS J 2013; 280:2180-93. [PMID: 23419151 DOI: 10.1111/febs.12180] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 02/04/2013] [Accepted: 02/06/2013] [Indexed: 12/13/2022]
Abstract
Heparan sulfate proteoglycans (HSPGs) have essential functions during embryonic development and throughout postnatal life. To exert these functions, they undergo a series of processing reactions by heparan-sulfate-modifying enzymes (HSMEs), which endows them with highly modified heparan sulfate (HS) domains that provide specific docking sites for a large number of bioactive molecules. The development and antigen-dependent differentiation of normal B lymphocytes, as well as the growth and progression of B-lineage malignancies, are orchestrated by an array of growth factors, cytokines and chemokines many of which display HS binding. As discussed in this review, tightly regulated HSPG expression is a requirement for normal B cell maturation, differentiation and function. In addition, the HSPG syndecan-1 functions as a versatile co-receptor for signals from the bone marrow microenvironment, essential for the survival of long-lived plasma cells and multiple myeloma (MM) plasma cells. Targeting of HSMEs or HS chains on MM cells increases their sensitivity to drugs currently used in MM treatment, including bortezomib, lenalidomide or dexamethasone. Taken together, these findings render the HS biosynthetic machinery a promising target for MM treatment.
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Affiliation(s)
- Rogier M Reijmers
- Department of Pathology, Academic Medical Center, Amsterdam, The Netherlands
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16
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McCarthy KJ, Wassenhove-McCarthy DJ. The glomerular basement membrane as a model system to study the bioactivity of heparan sulfate glycosaminoglycans. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2012; 18:3-21. [PMID: 22258721 PMCID: PMC3351113 DOI: 10.1017/s1431927611012682] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The glomerular basement membrane and its associated cells are critical elements in the renal ultrafiltration process. Traditionally the anionic charge associated with several carbohydrate moieties in the glomerular basement membrane are thought to form a charge selective barrier that restricts the transmembrane flux of anionic proteins across the glomerular basement membrane into the urinary space. The charge selective function, along with the size selective component of the basement membrane, serves to limit the efflux of plasma proteins from the capillary lumen. Heparan sulfate glycosaminoglycans are anionically charged carbohydrate structures attached to proteoglycan core proteins and have a role in establishing the charge selective function of the glomerular basement membrane. Although there are a large number of studies in the literature that support this concept, the results of several recent studies using molecular genetic approaches to minimize the anionic charge of the glomerular basement membrane would suggest that the role of heparan sulfate glycosaminoglycans in the glomerular capillary wall are still not yet entirely resolved, suggesting that this research area still requires new and novel exploration.
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Affiliation(s)
- Kevin J McCarthy
- Department of Pathology, LSU Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA 71130-3932, USA.
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17
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Duchez S, Pascal V, Cogné N, Jayat-Vignoles C, Julien R, Cogné M. Glycotranscriptome study reveals an enzymatic switch modulating glycosaminoglycan synthesis during B-cell development and activation. Eur J Immunol 2011; 41:3632-44. [DOI: 10.1002/eji.201140865] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Revised: 07/20/2011] [Accepted: 09/23/2011] [Indexed: 01/07/2023]
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18
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Jarousse N, Trujillo DL, Wilcox-Adelman S, Coscoy L. Virally-induced upregulation of heparan sulfate on B cells via the action of type I IFN. THE JOURNAL OF IMMUNOLOGY 2011; 187:5540-7. [PMID: 22048770 DOI: 10.4049/jimmunol.1003495] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Cell surface heparan sulfate (HS) is an important coreceptor for many cytokines, chemokines, and growth factors. In this study, we report that splenic murine B cells express very little HS and that upon infection with either gammaherpesvirus (murine gammaherpesvirus 68) or betaherpesvirus (murine cytomegalovirus), HS is rapidly upregulated at the surface of B cells. HS upregulation was not observed in mice deficient for the type I IFN (IFN-I) receptor. Additionally, treatment of wild-type mice with the IFN-I inducer polyinosine polycytidylic acid triggered HS expression at the B cell surface. Similarly, incubation of purified splenic B cells with IFN-I, TLR ligands, or BCR stimulators ex vivo resulted in a drastic increase in HS surface expression. We found that IFN-I induced an increase in the surface expression of HS-modified syndecan 4 as well as that of an unidentified heparan sulfate proteoglycan. Finally, IFN-I treatment increased B cell responsiveness to APRIL, a cytokine involved in B cell survival and T cell-independent B cell responses. Enzymatic removal of HS from IFN-I-treated B cells inhibited APRIL. Altogether, our results indicate that upon herpesvirus infection in mice, HS is rapidly upregulated at the surface of B cells due to the action of IFN-I, potentially increasing B cell responsiveness to cytokines. Induction of HS expression at the B cell surface by stimulators of the innate immune response likely plays a key role in the development of a robust immune response.
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Affiliation(s)
- Nadine Jarousse
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
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Sarrazin S, Lamanna WC, Esko JD. Heparan sulfate proteoglycans. Cold Spring Harb Perspect Biol 2011; 3:cshperspect.a004952. [PMID: 21690215 DOI: 10.1101/cshperspect.a004952] [Citation(s) in RCA: 1012] [Impact Index Per Article: 77.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Heparan sulfate proteoglycans are found at the cell surface and in the extracellular matrix, where they interact with a plethora of ligands. Over the last decade, new insights have emerged regarding the mechanism and biological significance of these interactions. Here, we discuss changing views on the specificity of protein-heparan sulfate binding and the activity of HSPGs as receptors and coreceptors. Although few in number, heparan sulfate proteoglycans have profound effects at the cellular, tissue, and organismal level.
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Affiliation(s)
- Stephane Sarrazin
- Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, California 92093, USA
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20
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Abstract
Heparan sulfate proteoglycans are found at the cell surface and in the extracellular matrix, where they interact with a plethora of ligands. Over the last decade, new insights have emerged regarding the mechanism and biological significance of these interactions. Here, we discuss changing views on the specificity of protein-heparan sulfate binding and the activity of HSPGs as receptors and coreceptors. Although few in number, heparan sulfate proteoglycans have profound effects at the cellular, tissue, and organismal level.
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Affiliation(s)
- Stephane Sarrazin
- Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, California 92093, USA
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21
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Disruption of heparan sulfate proteoglycan conformation perturbs B-cell maturation and APRIL-mediated plasma cell survival. Blood 2011; 117:6162-71. [PMID: 21471524 DOI: 10.1182/blood-2010-12-325522] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The development and antigen-dependent differentiation of B lymphocytes are orchestrated by an array of growth factors, cytokines, and chemokines that require tight spatiotemporal regulation. Heparan sulfate proteoglycans specifically bind and regulate the bioavailability of soluble protein ligands, but their role in the immune system has remained largely unexplored. Modification of heparan sulfate by glucuronyl C5-epimerase (Glce) controls heparan sulfate-chain flexibility and thereby affects ligand binding. Here we show that Glce deficiency impairs B-cell maturation, resulting in decreased plasma cell numbers and immunoglobulin levels. We demonstrate that C5-epimerase modification of heparan sulfate is critical for binding of a proliferation inducing ligand (APRIL) and that Glce-deficient plasma cells fail to respond to APRIL-mediated survival signals. Our results identify heparan sulfate proteoglycans as novel players in B-cell maturation and differentiation and suggest that heparan sulfate conformation is crucial for recruitment of factors that control plasma cell survival.
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22
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Norton MT, Fortner KA, Oppenheimer KH, Bonney EA. Evidence that CD8 T-cell homeostasis and function remain intact during murine pregnancy. Immunology 2011; 131:426-37. [PMID: 20553337 DOI: 10.1111/j.1365-2567.2010.03316.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Evolving models of immune tolerance have challenged the view that the response of the maternal immune system to environmental or fetal antigens must be suppressed or deviated. CD8 T cells play a central role in the immune response to viruses and intracellular pathogens so the maintenance of both the number and function of these cells is critical to protect both the mother and fetus. We show that the numbers of maternal CD8 T cells in both the spleen and the uterine draining lymph nodes are transiently increased at mid-gestation and this correlates with enhanced CD8 T-cell proliferation and an increased relative expression of both pro-survival and pro-apoptotic molecules. In transgenic mice bearing T-cell antigen receptors specific for the male HY or allo-antigens, the transgenic CD8 T cells retain the ability to proliferate and function during pregnancy. Moreover, anti-HY T-cell receptor transgenic mice have normal numbers of male pups despite the presence of CD8 T cells at the maternal-fetal interface. These data suggest that pregnancy is a dynamic state in which CD8 T-cell turnover is increased while the function and ending size of the CD8 T-cell compartment are maintained.
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Affiliation(s)
- Michelle T Norton
- University of Vermont College of Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, Burlington, VT 05405, USA
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23
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Abstract
BACKGROUND Multiple hereditary exostoses, also termed as multiple osteochondromas, is a heritable disorder of connective tissue with primarily orthopaedic clinical manifestations. Understanding of its biological underpinnings has been advanced on a variety of fronts in recent years. METHODS The multifaceted literature regarding osteochondromagenesis and the major clinical challenges in patients with multiple osteochondromas were reviewed. RESULTS Consideration of recent advances in molecular biology, biochemistry, and animal modeling of osteochondroma pathogenesis yields a unified model. CONCLUSIONS Mechanistic details and therapeutic targets have yet to be elucidated, but the general biology of osteochondroma formation is increasingly clear, as well as its implications in the orthopaedic clinical setting.
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Ly M, Laremore TN, Linhardt RJ. Proteoglycomics: recent progress and future challenges. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2010; 14:389-99. [PMID: 20450439 DOI: 10.1089/omi.2009.0123] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Proteoglycomics is a systematic study of structure, expression, and function of proteoglycans, a posttranslationally modified subset of a proteome. Although relying on the established technologies of proteomics and glycomics, proteoglycomics research requires unique approaches for elucidating structure-function relationships of both proteoglycan components, glycosaminoglycan chain, and core protein. This review discusses our current understanding of structure and function of proteoglycans, major players in the development, normal physiology, and disease. A brief outline of the proteoglycomic sample preparation and analysis is provided along with examples of several recent proteoglycomic studies. Unique challenges in the characterization of glycosaminoglycan component of proteoglycans are discussed, with emphasis on the many analytical tools used and the types of information they provide.
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Affiliation(s)
- Mellisa Ly
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York, USA
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25
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Bao X, Moseman EA, Saito H, Petryanik B, Thiriot A, Hatakeyama S, Ito Y, Kawashima H, Yamaguchi Y, Lowe JB, von Andrian UH, Fukuda M. Endothelial heparan sulfate controls chemokine presentation in recruitment of lymphocytes and dendritic cells to lymph nodes. Immunity 2010; 33:817-29. [PMID: 21093315 PMCID: PMC2996097 DOI: 10.1016/j.immuni.2010.10.018] [Citation(s) in RCA: 130] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Revised: 08/25/2010] [Accepted: 10/29/2010] [Indexed: 11/19/2022]
Abstract
Heparan sulfate can bind several adhesion molecules involved in lymphocyte trafficking. However, the in vivo function of endothelial heparan sulfate in lymphocyte homing and stimulation of the immune response has not been elucidated. Here, we generated mutant mice deficient in the enzyme Ext1, which is required for heparan sulfate synthesis, in a Tek-dependent and inducible manner. Chemokine presentation was diminished in the mutant mice, causing the lack of appropriate integrin-mediated adhesion, and resulted in a marked decrease in lymphocyte sticking to high endothelial venules and in recruitment of resident dendritic cells through lymphatic vessels to the lymph nodes. As a consequence, mutant mice displayed a severe impairment in lymphocyte homing and a compromised contact hypersensitivity response. By contrast, lymphocyte rolling was increased because of loss of electrostatic repulsion by heparan sulfate. These results demonstrate critical roles of endothelial heparan sulfate in immune surveillance and immune response generation.
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Affiliation(s)
- Xingfeng Bao
- Glycobiology Unit, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, USA
| | - E. Ashley Moseman
- Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Hideo Saito
- Glycobiology Unit, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, USA
| | - Bronislawa Petryanik
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA
| | - Aude Thiriot
- Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Shingo Hatakeyama
- Glycobiology Unit, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, USA
| | - Yuki Ito
- Glycobiology Unit, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, USA
| | - Hiroto Kawashima
- Glycobiology Unit, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, USA
| | - Yu Yamaguchi
- Glycobiology Unit, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, USA
- Sanford Children’s Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, USA
| | - John B Lowe
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA
| | - Ulrich H von Andrian
- Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Minoru Fukuda
- Glycobiology Unit, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, USA
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26
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Killedar S, Dirosario J, Divers E, Popovich PG, McCarty DM, Fu H. Mucopolysaccharidosis IIIB, a lysosomal storage disease, triggers a pathogenic CNS autoimmune response. J Neuroinflammation 2010; 7:39. [PMID: 20637096 PMCID: PMC2914668 DOI: 10.1186/1742-2094-7-39] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2010] [Accepted: 07/16/2010] [Indexed: 02/07/2023] Open
Abstract
Background Recently, using a mouse model of mucopolysaccharidosis (MPS) IIIB, a lysosomal storage disease with severe neurological deterioration, we showed that MPS IIIB neuropathology is accompanied by a robust neuroinflammatory response of unknown consequence. This study was to assess whether MPS IIIB lymphocytes are pathogenic. Methods Lymphocytes from MPS IIIB mice were adoptively transferred to naïve wild-type mice. The recipient animals were then evaluated for signs of disease and inflammation in the central nervous system. Results Our results show for the first time, that lymphocytes isolated from MPS IIIB mice caused a mild paralytic disease when they were injected systemically into naïve wild-type mice. This disease is characterized by mild tail and lower trunk weakness with delayed weight gain. The MPS IIIB lymphocytes also trigger neuroinflammation within the CNS of recipient mice characterized by an increase in transcripts of IL2, IL4, IL5, IL17, TNFα, IFNα and Ifi30, and intraparenchymal lymphocyte infiltration. Conclusions Our data suggest that an autoimmune response directed at CNS components contributes to MPS IIIB neuropathology independent of lysosomal storage pathology. Adoptive transfer of purified T-cells will be needed in future studies to identify specific effector T-cells in MPS IIIB neuroimmune pathogenesis.
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Affiliation(s)
- Smruti Killedar
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
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Shah MM, Sakurai H, Sweeney DE, Gallegos TF, Bush KT, Esko JD, Nigam SK. Hs2st mediated kidney mesenchyme induction regulates early ureteric bud branching. Dev Biol 2010; 339:354-65. [PMID: 20059993 DOI: 10.1016/j.ydbio.2009.12.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Revised: 12/18/2009] [Accepted: 12/23/2009] [Indexed: 01/14/2023]
Abstract
Heparan sulfate proteoglycans (HSPGs) are central modulators of developmental processes likely through their interaction with growth factors, such as GDNF, members of the FGF and TGFbeta superfamilies, EGF receptor ligands and HGF. Absence of the biosynthetic enzyme, heparan sulfate 2-O-sulfotransferase (Hs2st) leads to kidney agenesis. Using a novel combination of in vivo and in vitro approaches, we have reanalyzed the defect in morphogenesis of the Hs2st(-)(/)(-) kidney. Utilizing assays that separately model distinct stages of kidney branching morphogenesis, we found that the Hs2st(-/-) UB is able to undergo branching and induce mesenchymal-to-epithelial transformation when recombined with control MM, and the isolated Hs2st null UB is able to undergo branching morphogenesis in the presence of exogenous soluble pro-branching growth factors when embedded in an extracellular matrix, indicating that the UB is intrinsically competent. This is in contrast to the prevailing view that the defect underlying the renal agenesis phenotype is due to a primary role for 2-O sulfated HS in UB branching. Unexpectedly, the mutant MM was also fully capable of being induced in recombination experiments with wild-type tissue. Thus, both the mutant UB and mutant MM tissue appear competent in and of themselves, but the combination of mutant tissues fails in vivo and, as we show, in organ culture. We hypothesized a 2OS-dependent defect in the mutual inductive process, which could be on either the UB or MM side, since both progenitor tissues express Hs2st. In light of these observations, we specifically examined the role of the HS 2-O sulfation modification on the morphogenetic capacity of the UB and MM individually. We demonstrate that early UB branching morphogenesis is not primarily modulated by factors that depend on the HS 2-O sulfate modification; however, factors that contribute to MM induction are markedly sensitive to the 2-O sulfation modification. These data suggest that key defect in Hs2st null kidneys is the inability of MM to undergo induction either through a failure of mutual induction or a primary failure of MM morphogenesis. This results in normal UB formation but affects either T-shaped UB formation or iterative branching of the T-shaped UB (possibly two separate stages in collecting system development dependent upon HS). We discuss the possibility that a disruption in the interaction between HS and Wnts (e.g. Wnt 9b) may be an important aspect of the observed phenotype. This appears to be the first example of a defect in the MM preventing advancement of early UB branching past the first bifurcation stage, one of the limiting steps in early kidney development.
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Affiliation(s)
- Mita M Shah
- Department of Medicine, University of California, San Diego, CA 92093-0693, USA
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28
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Ringvall M, Kjellén L. Mice deficient in heparan sulfate N-deacetylase/N-sulfotransferase 1. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2010; 93:35-58. [PMID: 20807640 DOI: 10.1016/s1877-1173(10)93003-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ndsts (N-deacetylase/N-sulfotransferases) are enzymes responsible for N-sulfation during heparan sulfate (HS) and heparin biosynthesis. In this review, basic features of the Ndst1 enzyme are covered and a brief description of HS biosynthesis and its regulation is presented. Effects of Ndst1 deficiency on embryonic development are described. These include immature lungs, craniofacial dysplasia and eye developmental defects, branching defect during lacrimal gland development, delayed mineralization of the skeleton, and reduced pericyte recruitment during vascular development. A brief account of the effects of Ndst1 deficiency in selective cell types in adult mice is also given.
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Affiliation(s)
- Maria Ringvall
- Department of Medical Biochemistry and Microbiology, The Biomedical Center, Uppsala University, Uppsala, Sweden
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Zuberi RI, Ge XN, Jiang S, Bahaie NS, Kang BN, Hosseinkhani RM, Frenzel EM, Fuster MM, Esko JD, Rao SP, Sriramarao P. Deficiency of endothelial heparan sulfates attenuates allergic airway inflammation. THE JOURNAL OF IMMUNOLOGY 2009; 183:3971-9. [PMID: 19710461 DOI: 10.4049/jimmunol.0901604] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The effect of targeted inactivation of the gene encoding N-deacetylase/N-sulfotransferase-1 (Ndst1), a key enzyme involved in the biosynthesis of heparan sulfate (HS) chains, on the inflammatory response associated with allergic inflammation in a murine model of OVA-induced acute airway inflammation was investigated. OVA-exposed Ndst1(f/f)TekCre(+) (mutant) mice deficient in endothelial and leukocyte Ndst1 demonstrated significantly decreased allergen-induced airway hyperresponsiveness and inflammation characterized by a significant reduction in airway recruitment of inflammatory cells (eosinophils, macrophages, neutrophils, and lymphocytes), diminished IL-5, IL-2, TGF-beta1, and eotaxin levels, as well as decreased expression of TGF-beta1 and the angiogenic protein FIZZ1 (found in inflammatory zone 1) in lung tissue compared with OVA-exposed Ndst1(f/f)TekCre(-) wild-type littermates. Furthermore, murine eosinophils demonstrated significantly decreased rolling on lung endothelial cells (ECs) from mutant mice compared with wild-type ECs under conditions of flow in vitro. Treatment of wild-type ECs, but not eosinophils, with anti-HS Abs significantly inhibited eosinophil rolling, mimicking that observed with Ndst1-deficient ECs. In vivo, trafficking of circulating leukocytes in lung microvessels of allergen-challenged Ndst1-deficient mice was significantly lower than that observed in corresponding WT littermates. Endothelial-expressed HS plays an important role in allergic airway inflammation through the regulation of recruitment of inflammatory cells to the airways by mediating interaction of leukocytes with the vascular endothelium. Furthermore, HS may also participate by sequestering and modulating the activity of allergic asthma-relevant mediators such as IL-5, IL-2, and TGF-beta1.
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Affiliation(s)
- Riaz I Zuberi
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St Paul, MN 55108, USA
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Lindahl U, Li JP. Interactions between heparan sulfate and proteins-design and functional implications. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2009; 276:105-59. [PMID: 19584012 DOI: 10.1016/s1937-6448(09)76003-4] [Citation(s) in RCA: 206] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Heparan sulfate (HS) proteoglycans at cell surfaces and in the extracellular matrix of most animal tissues are essential in development and homeostasis, and variously implicated in disease processes. Functions of HS polysaccharide chains depend on ionic interactions with a variety of proteins including growth factors and their receptors. Negatively charged sulfate and carboxylate groups are arranged in various types of domains, generated through strictly regulated biosynthetic reactions and with enormous potential for structural variability. The level of specificity of HS-protein interactions is assessed through binding experiments in vitro using saccharides of defined composition, signaling assays in cell culture, and targeted disruption of genes for biosynthetic enzymes followed by phenotype analysis. While some protein ligands appear to require strictly defined HS structure, others bind to variable saccharide domains without any apparent dependence on distinct saccharide sequence. These findings raise intriguing questions concerning the functional significance of regulation in HS biosynthesis.
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Affiliation(s)
- Ulf Lindahl
- Department of Medical Biochemistry and Microbiology, University of Uppsala, Uppsala, Sweden
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