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Bourgeais M, Fouladkar F, Weber M, Boeri-Erba E, Wild R. Chemo-enzymatic synthesis of tetrasaccharide linker peptides to study the divergent step in glycosaminoglycan biosynthesis. Glycobiology 2024; 34:cwae016. [PMID: 38401165 PMCID: PMC11031135 DOI: 10.1093/glycob/cwae016] [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: 09/22/2023] [Revised: 01/29/2024] [Accepted: 02/22/2024] [Indexed: 02/26/2024] Open
Abstract
Glycosaminoglycans are extended linear polysaccharides present on cell surfaces and within the extracellular matrix that play crucial roles in various biological processes. Two prominent glycosaminoglycans, heparan sulfate and chondroitin sulfate, are covalently linked to proteoglycan core proteins through a common tetrasaccharide linker comprising glucuronic acid, galactose, galactose, and xylose moities. This tetrasaccharide linker is meticulously assembled step by step by four Golgi-localized glycosyltransferases. The addition of the fifth sugar moiety, either N-acetylglucosamine or N-acetylgalactosamine, initiates further chain elongation, resulting in the formation of heparan sulfate or chondroitin sulfate, respectively. Despite the fundamental significance of this step in glycosaminoglycan biosynthesis, its regulatory mechanisms have remained elusive. In this study, we detail the expression and purification of the four linker-synthesizing glycosyltransferases and their utilization in the production of fluorescent peptides carrying the native tetrasaccharide linker. We generated five tetrasaccharide peptides, mimicking the core proteins of either heparan sulfate or chondroitin sulfate proteoglycans. These peptides were readily accepted as substrates by the EXTL3 enzyme, which adds an N-acetylglucosamine moiety, thereby initiating heparan sulfate biosynthesis. Importantly, EXTL3 showed a preference towards peptides mimicking the core proteins of heparan sulfate proteoglycans over the ones from chondroitin sulfate proteoglycans. This suggests that EXTL3 could play a role in the decision-making step during glycosaminoglycan biosynthesis. The innovative strategy for chemo-enzymatic synthesis of fluorescent-labeled linker-peptides promises to be instrumental in advancing future investigations into the initial steps and the divergent step of glycosaminoglycan biosynthesis.
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Affiliation(s)
- Marie Bourgeais
- Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 71, Avenue des Martyrs, 38044 Grenoble, France
| | - Farah Fouladkar
- Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 71, Avenue des Martyrs, 38044 Grenoble, France
| | - Margot Weber
- Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 71, Avenue des Martyrs, 38044 Grenoble, France
| | | | - Rebekka Wild
- Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 71, Avenue des Martyrs, 38044 Grenoble, France
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2
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Sammon D, Krueger A, Busse-Wicher M, Morgan RM, Haslam SM, Schumann B, Briggs DC, Hohenester E. Molecular mechanism of decision-making in glycosaminoglycan biosynthesis. Nat Commun 2023; 14:6425. [PMID: 37828045 PMCID: PMC10570366 DOI: 10.1038/s41467-023-42236-z] [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: 04/26/2023] [Accepted: 09/27/2023] [Indexed: 10/14/2023] Open
Abstract
Two major glycosaminoglycan types, heparan sulfate (HS) and chondroitin sulfate (CS), control many aspects of development and physiology in a type-specific manner. HS and CS are attached to core proteins via a common linker tetrasaccharide, but differ in their polymer backbones. How core proteins are specifically modified with HS or CS has been an enduring mystery. By reconstituting glycosaminoglycan biosynthesis in vitro, we establish that the CS-initiating N-acetylgalactosaminyltransferase CSGALNACT2 modifies all glycopeptide substrates equally, whereas the HS-initiating N-acetylglucosaminyltransferase EXTL3 is selective. Structure-function analysis reveals that acidic residues in the glycopeptide substrate and a basic exosite in EXTL3 are critical for specifying HS biosynthesis. Linker phosphorylation by the xylose kinase FAM20B accelerates linker synthesis and initiation of both HS and CS, but has no effect on the subsequent polymerisation of the backbone. Our results demonstrate that modification with CS occurs by default and must be overridden by EXTL3 to produce HS.
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Affiliation(s)
- Douglas Sammon
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
| | - Anja Krueger
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
| | - Marta Busse-Wicher
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
- Abzena, Babraham Research Campus, Cambridge, CB22 3AT, UK
| | - Rhodri Marc Morgan
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
- ZoBio, 2333 CH, Leiden, Netherlands
| | - Stuart M Haslam
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
| | - Benjamin Schumann
- Department of Chemistry, Imperial College London, London, W12 0BZ, UK
- Chemical Glycobiology Laboratory, The Francis Crick Institute, London, NW1 1AT, UK
| | - David C Briggs
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK.
- Signalling and Structural Biology Laboratory, The Francis Crick Institute, London, NW1 1AT, UK.
| | - Erhard Hohenester
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK.
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3
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Cengiz Winter N, Karakaya M, Mosen P, Brusius I, Anlar B, Haliloglu G, Winter D, Wirth B. Proteomic Investigation of Differential Interactomes of Glypican 1 and a Putative Disease-Modifying Variant of Ataxia. J Proteome Res 2023; 22:3081-3095. [PMID: 37585105 PMCID: PMC10476613 DOI: 10.1021/acs.jproteome.3c00402] [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: 07/05/2023] [Indexed: 08/17/2023]
Abstract
In a currently 13-year-old girl of consanguineous Turkish parents, who developed unsteady gait and polyneuropathy at the ages of 3 and 6 years, respectively, we performed whole genome sequencing and identified a biallelic missense variant c.424C>T, p.R142W in glypican 1 (GPC1) as a putative disease-associated variant. Up to date, GPC1 has not been associated with a neuromuscular disorder, and we hypothesized that this variant, predicted as deleterious, may be causative for the disease. Using mass spectrometry-based proteomics, we investigated the interactome of GPC1 WT and the missense variant. We identified 198 proteins interacting with GPC1, of which 16 were altered for the missense variant. This included CANX as well as vacuolar ATPase (V-ATPase) and the mammalian target of rapamycin complex 1 (mTORC1) complex members, whose dysregulation could have a potential impact on disease severity in the patient. Importantly, these proteins are novel interaction partners of GPC1. At 10.5 years, the patient developed dilated cardiomyopathy and kyphoscoliosis, and Friedreich's ataxia (FRDA) was suspected. Given the unusually severe phenotype in a patient with FRDA carrying only 104 biallelic GAA repeat expansions in FXN, we currently speculate that disturbed GPC1 function may have exacerbated the disease phenotype. LC-MS/MS data are accessible in the ProteomeXchange Consortium (PXD040023).
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Affiliation(s)
- Nur Cengiz Winter
- Institute
of Human Genetics, University Hospital Cologne, 50931 Cologne, Germany
- Center
for Molecular Medicine Cologne, University
of Cologne, 50931 Cologne, Germany
| | - Mert Karakaya
- Institute
of Human Genetics, University Hospital Cologne, 50931 Cologne, Germany
- Center
for Molecular Medicine Cologne, University
of Cologne, 50931 Cologne, Germany
- Center
for Rare Diseases Cologne, University Hospital
of Cologne, 50931 Cologne, Germany
| | - Peter Mosen
- Institute
for Biochemistry and Molecular Biology, Medical Faculty, University of Bonn, 53115 Bonn, Germany
| | - Isabell Brusius
- Institute
of Human Genetics, University Hospital Cologne, 50931 Cologne, Germany
| | - Banu Anlar
- Department
of Pediatrics, Division of Pediatric Neurology, Hacettepe University Faculty of Medicine, 06230 Ankara, Turkey
| | - Goknur Haliloglu
- Department
of Pediatrics, Division of Pediatric Neurology, Hacettepe University Faculty of Medicine, 06230 Ankara, Turkey
| | - Dominic Winter
- Institute
for Biochemistry and Molecular Biology, Medical Faculty, University of Bonn, 53115 Bonn, Germany
| | - Brunhilde Wirth
- Institute
of Human Genetics, University Hospital Cologne, 50931 Cologne, Germany
- Center
for Molecular Medicine Cologne, University
of Cologne, 50931 Cologne, Germany
- Center
for Rare Diseases Cologne, University Hospital
of Cologne, 50931 Cologne, Germany
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4
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Tamura S, Ishiguro H, Suwabe T, Katagiri T, Cho K, Fuse K, Shibasaki Y, Mikami T, Shindo T, Kitagawa H, Igarashi M, Sone H, Masuko M, Ushiki T. Genetic manipulation resulting in decreased donor chondroitin sulfate synthesis mitigates hepatic GVHD via suppression of T cell activity. Sci Rep 2023; 13:13098. [PMID: 37567982 PMCID: PMC10421903 DOI: 10.1038/s41598-023-40367-3] [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: 12/17/2022] [Accepted: 08/09/2023] [Indexed: 08/13/2023] Open
Abstract
Donor T cell activation, proliferation, differentiation, and migration are the major steps involved in graft-versus-host disease (GVHD) development following bone marrow transplantation. Chondroitin sulfate (CS) proteoglycan is a major component of the extracellular matrix and causes immune modulation by interacting with cell growth factors and inducing cell adhesion. However, its precise effects on immune function are unclear than those of other proteoglycan families. Thus, we investigated the significance of CS within donor cells in acute GVHD development utilizing CSGalNAc T1-knockout (T1KO) mice. To determine the effects of T1KO, the mice underwent allogenic bone marrow transplantation from major histocompatibility complex-mismatched donors. While transplantation resulted in hepatic GVHD with inflammatory cell infiltration of both CD4+ and CD8+ effector memory T cells, transplantation in T1KO-donors showed milder cell infiltration and improved survival with fewer splenic effector T cells. In vitro T-cell analyses showed that the ratio of effector memory T cells was significantly lower via phorbol myristate acetate/ionomycin stimulation. Moreover, quantitative PCR analyses showed significantly less production of inflammatory cytokines, such as IFN-γ and CCL-2, in splenocytes of T1KO mice. These results suggest that reduction of CS in donor blood cells may suppress the severity of acute GVHD after hematopoietic stem cell transplantation.
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Affiliation(s)
- Suguru Tamura
- Department of Hematology, Niigata University Faculty of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Hajime Ishiguro
- Department of Hematology, Niigata University Faculty of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Tatsuya Suwabe
- Department of Hematology, Niigata University Faculty of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Takayuki Katagiri
- Department of Hematology, Niigata University Faculty of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Kaori Cho
- Department of Hematology, Niigata University Faculty of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Kyoko Fuse
- Department of Hematology, Niigata University Faculty of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Yasuhiko Shibasaki
- Department of Hematology, Niigata University Faculty of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Tadahisa Mikami
- Laboratory of Biochemistry, Kobe Pharmaceutical University, Kobe, Japan
| | - Takero Shindo
- Department of Hematology/Oncology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroshi Kitagawa
- Laboratory of Biochemistry, Kobe Pharmaceutical University, Kobe, Japan
| | - Michihiro Igarashi
- Department of Neurochemistry and Molecular Cell Biology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hirohito Sone
- Department of Hematology, Niigata University Faculty of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Masayoshi Masuko
- Department of Hematology, Niigata University Faculty of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan
| | - Takashi Ushiki
- Department of Hematology, Niigata University Faculty of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata City, Niigata, 951-8510, Japan.
- Division of Hematology and Oncology, Graduate School of Health Sciences, Niigata University, Niigata, Japan.
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5
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Chen X, Li N, Hu P, Li L, Li D, Liu H, Zhu L, Xiao J, Liu C. Deficiency of Fam20b-Catalyzed Glycosaminoglycan Chain Synthesis in Neural Crest Leads to Cleft Palate. Int J Mol Sci 2023; 24:ijms24119634. [PMID: 37298583 DOI: 10.3390/ijms24119634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 05/30/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Cleft palate is one of the most common birth defects. Previous studies revealed that multiple factors, including impaired intracellular or intercellular signals, and incoordination of oral organs led to cleft palate, but were little concerned about the contribution of the extracellular matrix (ECM) during palatogenesis. Proteoglycans (PGs) are one of the important macromolecules in the ECM. They exert biological functions through one or more glycosaminoglycan (GAG) chains attached to core proteins. The family with sequence similarity 20 member b (Fam20b) are newly identified kinase-phosphorylating xylose residues that promote the correct assembly of the tetrasaccharide linkage region by creating a premise for GAG chain elongation. In this study, we explored the function of GAG chains in palate development through Wnt1-Cre; Fam20bf/f mice, which exhibited complete cleft palate, malformed tongue, and micrognathia. In contrast, Osr2-Cre; Fam20bf/f mice, in which Fam20b was deleted only in palatal mesenchyme, showed no abnormality, suggesting that failed palatal elevation in Wnt1-Cre; Fam20bf/f mice was secondary to micrognathia. In addition, the reduced GAG chains promoted the apoptosis of palatal cells, primarily resulting in reduced cell density and decreased palatal volume. The suppressed BMP signaling and reduced mineralization indicated an impaired osteogenesis of palatine, which could be rescued partially by constitutively active Bmpr1a. Together, our study highlighted the key role of GAG chains in palate morphogenesis.
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Affiliation(s)
- Xiaoyan Chen
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Nan Li
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian 116044, China
- Dalian Key Laboratory of Basic Research in Oral Medicine, School of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Ping Hu
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Leilei Li
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Danya Li
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Han Liu
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian 116044, China
- Dalian Key Laboratory of Basic Research in Oral Medicine, School of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Lei Zhu
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian 116044, China
- Dalian Key Laboratory of Basic Research in Oral Medicine, School of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Jing Xiao
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian 116044, China
- Dalian Key Laboratory of Basic Research in Oral Medicine, School of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Chao Liu
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian 116044, China
- Dalian Key Laboratory of Basic Research in Oral Medicine, School of Stomatology, Dalian Medical University, Dalian 116044, China
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6
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Koike T, Mikami T, Tamura JI, Kitagawa H. Altered sulfation status of FAM20C-dependent chondroitin sulfate is associated with osteosclerotic bone dysplasia. Nat Commun 2022; 13:7952. [PMID: 36572689 PMCID: PMC9792594 DOI: 10.1038/s41467-022-35687-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 12/19/2022] [Indexed: 12/27/2022] Open
Abstract
Raine syndrome, a lethal osteosclerotic bone dysplasia in humans, is caused by loss-of-function mutations in FAM20C; however, Fam20c deficiency in mice does not recapitulate the human disorder, so the underlying pathoetiological mechanisms remain poorly understood. Here we show that FAM20C, in addition to the reported casein kinase activity, also fine-tunes the biosynthesis of chondroitin sulfate (CS) chains to impact bone homeostasis. Specifically, FAM20C with Raine-originated mutations loses the ability to interact with chondroitin 4-O-sulfotransferase-1, and is associated with reduced 4-sulfation/6-sulfation (4S/6S) ratio of CS chains and upregulated biomineralization in human osteosarcoma cells. By contrast, overexpressing chondroitin 6-O-sulfotransferase-1 reduces CS 4S/6S ratio, and induces osteoblast differentiation in vitro and higher bone mineral density in transgenic mice. Meanwhile, a potential xylose kinase activity of FAM20C does not impact CS 4S/6S ratio, and is not associated with Raine syndrome mutations. Our results thus implicate CS 4S/6S ratio imbalances caused by FAM20C mutations as a contributor of Raine syndrome etiology.
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Affiliation(s)
- Toshiyasu Koike
- grid.411100.50000 0004 0371 6549Laboratory of Biochemistry, Kobe Pharmaceutical University, Higashinada-Ku, Kobe, 658-8558 Japan
| | - Tadahisa Mikami
- grid.411100.50000 0004 0371 6549Laboratory of Biochemistry, Kobe Pharmaceutical University, Higashinada-Ku, Kobe, 658-8558 Japan
| | - Jun-Ichi Tamura
- grid.265107.70000 0001 0663 5064Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, Tottori, 680-8551 Japan
| | - Hiroshi Kitagawa
- grid.411100.50000 0004 0371 6549Laboratory of Biochemistry, Kobe Pharmaceutical University, Higashinada-Ku, Kobe, 658-8558 Japan
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7
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Leisico F, Omeiri J, Le Narvor C, Beaudouin J, Hons M, Fenel D, Schoehn G, Couté Y, Bonnaffé D, Sadir R, Lortat-Jacob H, Wild R. Structure of the human heparan sulfate polymerase complex EXT1-EXT2. Nat Commun 2022; 13:7110. [PMID: 36402845 PMCID: PMC9675754 DOI: 10.1038/s41467-022-34882-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 11/10/2022] [Indexed: 11/21/2022] Open
Abstract
Heparan sulfates are complex polysaccharides that mediate the interaction with a broad range of protein ligands at the cell surface. A key step in heparan sulfate biosynthesis is catalyzed by the bi-functional glycosyltransferases EXT1 and EXT2, which generate the glycan backbone consisting of repeating N-acetylglucosamine and glucuronic acid units. The molecular mechanism of heparan sulfate chain polymerization remains, however, unknown. Here, we present the cryo-electron microscopy structure of human EXT1-EXT2, which reveals the formation of a tightly packed hetero-dimeric complex harboring four glycosyltransferase domains. A combination of in vitro and in cellulo mutational studies is used to dissect the functional role of the four catalytic sites. While EXT1 can catalyze both glycosyltransferase reactions, our results indicate that EXT2 might only have N-acetylglucosamine transferase activity. Our findings provide mechanistic insight into heparan sulfate chain elongation as a nonprocessive process and lay the foundation for future studies on EXT1-EXT2 function in health and disease.
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Affiliation(s)
- Francisco Leisico
- grid.457348.90000 0004 0630 1517Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 38000 Grenoble, France
| | - Juneina Omeiri
- grid.457348.90000 0004 0630 1517Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 38000 Grenoble, France
| | - Christine Le Narvor
- grid.462047.30000 0004 0382 4005Université Paris-Saclay, CNRS, Institut de chimie moléculaire et des matériaux d’Orsay, 91405 Orsay, France
| | - Joël Beaudouin
- grid.457348.90000 0004 0630 1517Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 38000 Grenoble, France
| | - Michael Hons
- grid.418923.50000 0004 0638 528XEuropean Molecular Biology Laboratory (EMBL), Grenoble Outstation, 71 avenue des Martyrs, 38042 Grenoble, France
| | - Daphna Fenel
- grid.457348.90000 0004 0630 1517Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 38000 Grenoble, France
| | - Guy Schoehn
- grid.457348.90000 0004 0630 1517Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 38000 Grenoble, France
| | - Yohann Couté
- grid.457348.90000 0004 0630 1517University Grenoble Alpes, INSERM, CEA, UMR BioSanté U1292, CNRS, CEA, FR2048, 38000 Grenoble, France
| | - David Bonnaffé
- grid.462047.30000 0004 0382 4005Université Paris-Saclay, CNRS, Institut de chimie moléculaire et des matériaux d’Orsay, 91405 Orsay, France
| | - Rabia Sadir
- grid.457348.90000 0004 0630 1517Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 38000 Grenoble, France
| | - Hugues Lortat-Jacob
- grid.457348.90000 0004 0630 1517Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 38000 Grenoble, France
| | - Rebekka Wild
- grid.457348.90000 0004 0630 1517Institut de Biologie Structurale, UMR 5075, University Grenoble Alpes, CNRS, CEA, 38000 Grenoble, France
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8
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Marques C, Poças J, Gomes C, Faria-Ramos I, Reis CA, Vivès RR, Magalhães A. Glycosyltransferases EXTL2 and EXTL3 cellular balance dictates Heparan Sulfate biosynthesis and shapes gastric cancer cell motility and invasion. J Biol Chem 2022; 298:102546. [PMID: 36181793 DOI: 10.1016/j.jbc.2022.102546] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 11/19/2022] Open
Abstract
Heparan Sulfate Proteoglycans (HSPGs) are abundant glycoconjugates in cells' glycocalyx and Extracellular Matrix (ECM). By acting as scaffolds for protein-protein interactions, HSPGs modulate extracellular ligand gradients, cell signaling networks, and cell-ECM crosstalk. Aberrant expression of HSPGs and enzymes involved in HSPG biosynthesis and processing has been reported in tumors, with impact in cancer cell behavior and tumor microenvironment properties. However, the roles of specific glycosyltransferases in the deregulated biosynthesis of HSPGs are not fully understood. In this study, we established glycoengineered gastric cancer cell models lacking either Exostosin Like glycosyltransferase 2 (EXTL2) or EXTL3, and revealed their regulatory roles in both Heparan Sulfate (HS) and Chondroitin Sulfate (CS) biosynthesis and structural features. We showed that EXTL3 is key for initiating the synthesis of HS chains in detriment of CS biosynthesis, intervening in the fine-tuned balance of the HS/CS ratio in cells, while EXTL2 functions as a negative regulator of HS biosynthesis, with impact over the glycoproteome of gastric cancer cells. We demonstrated that knock-out of EXTL2 enhanced HS levels along with concomitant upregulation of Syndecan-4, which is a major cell-surface carrier of HS. This aberrant HS expression profile promoted a more aggressive phenotype, characterized by higher cellular motility and invasion, and impaired activation of Ephrin type-A 4 cell surface receptor tyrosine kinase. Our findings uncover the biosynthetic roles of EXTL2 and EXTL3 in the regulation of cancer cell GAGosylation and proteoglycans expression, and unravel the functional consequences of aberrant HS/CS balance in cellular malignant features.
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Affiliation(s)
- Catarina Marques
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal; Programa Doutoral em Biologia Molecular e Celular (MCbiology), Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Juliana Poças
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Catarina Gomes
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
| | - Isabel Faria-Ramos
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
| | - Celso A Reis
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal; FMUP - Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | | | - Ana Magalhães
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
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9
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Nadanaka S, Tamura JI, Kitagawa H. Chondroitin Sulfates Control Invasiveness of the Basal-Like Breast Cancer Cell Line MDA-MB-231 Through ROR1. Front Oncol 2022; 12:914838. [PMID: 35712490 PMCID: PMC9194504 DOI: 10.3389/fonc.2022.914838] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/02/2022] [Indexed: 11/19/2022] Open
Abstract
Extracellular and cell surface chondroitin sulfates (CSs) regulate cancer cell properties, including proliferation and invasion. Thus, it is necessary to understand the mechanisms underlying their roles in cancer. Although we have shown that CS has an inherent ability to enhance the invasive activity of the human triple-negative breast cancer cell line MDA-MB-231, its molecular mechanism remains elusive. Here, we focused on receptor tyrosine kinase-like orphan receptor 1 (ROR1) and dickkopf WNT signaling pathway inhibitor 1 (DKK1). MDA-MB-231 cells express high levels of ROR1; their invasive potential depends on ROR1 signaling. Although accumulating evidence has demonstrated that ROR1 is associated with aggressive breast-cancer phenotypes, the whole picture of its biological function remains poorly understood. In this study, we examined whether CS controls ROR1 function. Surface plasmon resonance analysis indicated that CSs were bound to ROR1 in the presence of WNT5A. The invasive activity of MDA-MB-231 cells enhanced by CSs was completely suppressed by ROR1 knockdown. In addition, knockdown of the CS biosynthetic enzymes CHST11 and CHST15 inhibited invasive activity, even in the presence of ROR1. These results suggest that CS is required to induce an ROR1-dependent, aggressive MDA-MB-231 phenotype. ROR1 signaling in MDA-MB-231 cells activated c-Jun N-terminal kinase (JNK), leading to increased invasive potential; moreover, exogenous CSs activated JNK. MDA-MB-231 cells express DKK1, a tumor suppressor factor that binds to CS, at high levels. Knockdown of DKK1 enhanced CS-stimulated tumor invasion activity of MDA-MB-231 cells, suggesting that DKK1 sequesters CS to block ROR1/JNK signaling. These results showed that CSs promotes cancer aggressiveness through the ROR1−JNK axis in MDA-MB-231 cells.
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Affiliation(s)
- Satomi Nadanaka
- Laboratory of Biochemistry, Kobe Pharmaceutical University, Kobe, Japan
| | - Jun-Ichi Tamura
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Hiroshi Kitagawa
- Laboratory of Biochemistry, Kobe Pharmaceutical University, Kobe, Japan
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10
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Herrera‐Luis E, Ortega VE, Ampleford EJ, Sio YY, Granell R, de Roos E, Terzikhan N, Vergara E, Hernandez‐Pacheco N, Perez‐Garcia J, Martin‐Gonzalez E, Lorenzo‐Diaz F, Hashimoto S, Brinkman P, Jorgensen AL, Yan Q, Forno E, Vijverberg SJ, Lethem R, Espuela‐Ortiz A, Gorenjak M, Eng C, González‐Pérez R, Hernández‐Pérez JM, Poza‐Guedes P, Sardón O, Corcuera P, Hawkins G, Marsico A, Bahmer T, Rabe KF, Hansen G, Kopp MV, Rios R, Cruz M, González‐Barcala F, Olaguibel JM, Plaza V, Quirce S, Canino G, Cloutier M, del Pozo V, Rodriguez‐Santana JR, Korta‐Murua J, Villar J, Potočnik U, Figueiredo C, Kabesch M, Mukhopadhyay S, Pirmohamed M, Hawcutt D, Melén E, Palmer CN, Turner S, Maitland‐van der Zee AH, von Mutius E, Celedón JC, Brusselle G, Chew FT, Bleecker E, Meyers D, Burchard EG, Pino‐Yanes M. Multi-ancestry genome-wide association study of asthma exacerbations. Pediatr Allergy Immunol 2022; 33:e13802. [PMID: 35754128 PMCID: PMC9671132 DOI: 10.1111/pai.13802] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/01/2022] [Accepted: 05/04/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND Asthma exacerbations are a serious public health concern due to high healthcare resource utilization, work/school productivity loss, impact on quality of life, and risk of mortality. The genetic basis of asthma exacerbations has been studied in several populations, but no prior study has performed a multi-ancestry meta-analysis of genome-wide association studies (meta-GWAS) for this trait. We aimed to identify common genetic loci associated with asthma exacerbations across diverse populations and to assess their functional role in regulating DNA methylation and gene expression. METHODS A meta-GWAS of asthma exacerbations in 4989 Europeans, 2181 Hispanics/Latinos, 1250 Singaporean Chinese, and 972 African Americans analyzed 9.6 million genetic variants. Suggestively associated variants (p ≤ 5 × 10-5 ) were assessed for replication in 36,477 European and 1078 non-European asthma patients. Functional effects on DNA methylation were assessed in 595 Hispanic/Latino and African American asthma patients and in publicly available databases. The effect on gene expression was evaluated in silico. RESULTS One hundred and twenty-six independent variants were suggestively associated with asthma exacerbations in the discovery phase. Two variants independently replicated: rs12091010 located at vascular cell adhesion molecule-1/exostosin like glycosyltransferase-2 (VCAM1/EXTL2) (discovery: odds ratio (ORT allele ) = 0.82, p = 9.05 × 10-6 and replication: ORT allele = 0.89, p = 5.35 × 10-3 ) and rs943126 from pantothenate kinase 1 (PANK1) (discovery: ORC allele = 0.85, p = 3.10 × 10-5 and replication: ORC allele = 0.89, p = 1.30 × 10-2 ). Both variants regulate gene expression of genes where they locate and DNA methylation levels of nearby genes in whole blood. CONCLUSIONS This multi-ancestry study revealed novel suggestive regulatory loci for asthma exacerbations located in genomic regions participating in inflammation and host defense.
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Affiliation(s)
- Esther Herrera‐Luis
- Genomics and Health GroupDepartment of Biochemistry, Microbiology, Cell Biology and GeneticsUniversidad de La Laguna (ULL)San Cristóbal de La Laguna, TenerifeSpain
| | - Victor E. Ortega
- Division of Respiratory MedicineDepartment of Internal MedicineMayo ClinicScottsdaleArizonaUSA
| | - Elizabeth J. Ampleford
- Department of Internal MedicineCenter for Precision MedicineWake Forest School of MedicineWinston‐SalemNorth CarolinaUSA
| | - Yang Yie Sio
- Department of Biological SciencesNational University of SingaporeSingapore CitySingapore
| | - Raquel Granell
- MRC Integrative Epidemiology Unit (IEU)Population Health SciencesBristol Medical SchoolUniversity of BristolBristolUK
| | - Emmely de Roos
- Department of EpidemiologyErasmus University Medical CenterRotterdamThe Netherlands
- Department of Respiratory MedicineGhent University HospitalGhentBelgium
| | - Natalie Terzikhan
- Department of EpidemiologyErasmus University Medical CenterRotterdamThe Netherlands
- Department of Respiratory MedicineGhent University HospitalGhentBelgium
| | - Ernesto Elorduy Vergara
- Institute of Computation BiologyHelmholtz Zentrum MünchenGerman Research Center for Environmental HealthMunichGermany
| | - Natalia Hernandez‐Pacheco
- Department of Clinical Sciences and EducationSödersjukhusetKarolinska InstitutetStockholmSweden
- CIBER de Enfermedades Respiratorias (CIBERES)MadridSpain
| | - Javier Perez‐Garcia
- Genomics and Health GroupDepartment of Biochemistry, Microbiology, Cell Biology and GeneticsUniversidad de La Laguna (ULL)San Cristóbal de La Laguna, TenerifeSpain
| | - Elena Martin‐Gonzalez
- Genomics and Health GroupDepartment of Biochemistry, Microbiology, Cell Biology and GeneticsUniversidad de La Laguna (ULL)San Cristóbal de La Laguna, TenerifeSpain
| | - Fabian Lorenzo‐Diaz
- Genomics and Health GroupDepartment of Biochemistry, Microbiology, Cell Biology and GeneticsUniversidad de La Laguna (ULL)San Cristóbal de La Laguna, TenerifeSpain
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC)Universidad de La Laguna (ULL)San Cristóbal de La Laguna, TenerifeSpain
| | - Simone Hashimoto
- Department of Respiratory MedicineAmsterdam University Medical CenterUniversity of AmsterdamAmsterdamThe Netherlands
| | - Paul Brinkman
- Department of Respiratory MedicineAmsterdam University Medical CenterUniversity of AmsterdamAmsterdamThe Netherlands
| | | | - Andrea L. Jorgensen
- Department of Health Data ScienceInstitute of Population HealthUniversity of LiverpoolLiverpoolUK
| | - Qi Yan
- Department of Obstetrics and GynecologyColumbia University Irving Medical CenterNew YorkNew YorkUSA
| | - Erick Forno
- Division of Pediatric Pulmonary MedicineUPMC Children's Hospital of PittsburghUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Susanne J. Vijverberg
- Department of Respiratory MedicineAmsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands
- Division of Pharmacoepidemiology and Clinical PharmacologyFaculty of ScienceUtrecht UniversityUtrechtThe Netherlands
- Department of Paediatric Respiratory Medicine and AllergyEmma's Children HospitalAmsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands
| | - Ryan Lethem
- MRC Integrative Epidemiology Unit (IEU)Population Health SciencesBristol Medical SchoolUniversity of BristolBristolUK
| | - Antonio Espuela‐Ortiz
- Genomics and Health GroupDepartment of Biochemistry, Microbiology, Cell Biology and GeneticsUniversidad de La Laguna (ULL)San Cristóbal de La Laguna, TenerifeSpain
| | - Mario Gorenjak
- Center for Human Molecular Genetics and PharmacogenomicsFaculty of MedicineUniversity of MariborMariborSlovenia
| | - Celeste Eng
- Department of MedicineUniversity of California San FranciscoSan FranciscoCaliforniaUSA
| | - Ruperto González‐Pérez
- Allergy DepartmentHospital Universitario de CanariasSanta Cruz de TenerifeTenerifeSpain
- Severe Asthma Unit, Allergy DepartmentHospital Universitario de CanariasSanta Cruz de TenerifeTenerifeSpain
| | - José M. Hernández‐Pérez
- Pulmonary MedicineHospital Universitario de N.S de CandelariaSanta Cruz de TenerifeSpain
- Pulmonary MedicineHospital General de La PalmaLa Palma, Santa Cruz de TenerifeSpain
| | - Paloma Poza‐Guedes
- Allergy DepartmentHospital Universitario de CanariasSanta Cruz de TenerifeTenerifeSpain
- Severe Asthma Unit, Allergy DepartmentHospital Universitario de CanariasSanta Cruz de TenerifeTenerifeSpain
| | - Olaia Sardón
- Division of Pediatric Respiratory MedicineHospital Universitario DonostiaSan SebastiánSpain
- Department of PediatricsUniversity of the Basque Country (UPV/EHU)San SebastiánSpain
| | - Paula Corcuera
- Division of Pediatric Respiratory MedicineHospital Universitario DonostiaSan SebastiánSpain
| | - Greg A. Hawkins
- Department of BiochemistryWake Forest School of MedicineWinston‐SalemNorth CarolinaUSA
| | - Annalisa Marsico
- Computational Health CenterHelmholtz Zentrum MünchenGerman Research Center for Environmental HealthMunichGermany
| | - Thomas Bahmer
- LungenClinic Grosshansdorf, PneumologyGrosshansdorfGermany
- Airway Research Center North (ARCN)Members of the Germany Center for Lung Research (DZL)GrosshansdorfGermany
| | - Klaus F. Rabe
- LungenClinic Grosshansdorf, PneumologyGrosshansdorfGermany
- Airway Research Center North (ARCN)Members of the Germany Center for Lung Research (DZL)GrosshansdorfGermany
| | - Gesine Hansen
- Department of Pediatric Pneumology, Allergology and NeonatologyHannover Medical SchoolHannoverGermany
| | - Matthias Volkmar Kopp
- Division of Pediatric Pneumology & AllergologyUniversity Medical Center Schleswig‐HolsteinLübeckGermany
- Airway Research Center North (ARCN)Members of the Germany Center for Lung Research (DZL)LübeckGermany
- Department of Paediatric Respiratory MedicineInselspitalUniversity Children's Hospital of BernUniversity of BernBernSwitzerland
| | - Raimon Rios
- Programa de Pós Graduação em Imunologia (PPGIm)Instituto de Ciências da SaúdeUniversidade Federal da Bahia (UFBA)SalvadorBrazil
| | - Maria Jesus Cruz
- CIBER de Enfermedades Respiratorias (CIBERES)MadridSpain
- Servicio de NeumologíaHospital Vall d’HebronBarcelonaSpain
| | | | - José María Olaguibel
- CIBER de Enfermedades Respiratorias (CIBERES)MadridSpain
- Servicio de AlergologíaComplejo Hospitalario de NavarraPamplonaNavarraSpain
| | - Vicente Plaza
- CIBER de Enfermedades Respiratorias (CIBERES)MadridSpain
- Departamento de Medicina RespiratoriaHospital de la Santa Creu i Sant PauInstituto de Investigación Biomédica Sant Pau (IIB Sant Pau)BarcelonaSpain
| | - Santiago Quirce
- CIBER de Enfermedades Respiratorias (CIBERES)MadridSpain
- Department of AllergyLa Paz University HospitalIdiPAZMadridSpain
| | - Glorisa Canino
- Behavioral Sciences Research InstituteUniversity of Puerto RicoSan JuanPuerto Rico
| | - Michelle Cloutier
- Department of PediatricsUniversity of ConnecticutFarmingtonConnecticutUSA
| | - Victoria del Pozo
- CIBER de Enfermedades Respiratorias (CIBERES)MadridSpain
- Immunology DepartmentInstituto de Investigación Sanitaria Hospital Universitario Fundación Jiménez DíazMadridSpain
| | | | - Javier Korta‐Murua
- Department of PediatricsUniversity of the Basque Country (UPV/EHU)San SebastiánSpain
| | - Jesús Villar
- CIBER de Enfermedades Respiratorias (CIBERES)MadridSpain
- Multidisciplinary Organ Dysfunction Evaluation Research NetworkResearch UnitHospital Universitario Dr. NegrínLas Palmas de Gran CanariaSpain
| | - Uroš Potočnik
- Laboratory for Biochemistry, Molecular Biology and GenomicsFaculty for Chemistry and Chemical EngineeringUniversity of MariborMariborSlovenia
| | - Camila Figueiredo
- Instituto de Ciências da SaúdeUniversidade Federal da BahiaSalvadorBrazil
| | - Michael Kabesch
- Department of Paediatric Pneumology and AllergyUniversity Children's Hospital Regensburg (KUNO)RegensburgGermany
| | - Somnath Mukhopadhyay
- Academic Department of PaediatricsBrighton and Sussex Medical School, Royal Alexandra Children's HospitalBrightonUK
- Population Pharmacogenetics GroupBiomedical Research InstituteNinewells Hospital and Medical SchoolUniversity of DundeeDundeeUK
| | - Munir Pirmohamed
- Department of Pharmacology and TherapeuticsInstitute of Systems, Molecular and Integrative BiologyUniversity of LiverpoolLiverpoolUK
| | - Daniel B. Hawcutt
- Department of Women's and Children's HealthUniversity of LiverpoolLiverpoolUK
- Alder Hey Children's HospitalLiverpoolUK
- NIHR Alder Hey Clinical Research FacilityAlder Hey Children's HospitalLiverpoolUK
| | - Erik Melén
- Department of Clinical Sciences and EducationSödersjukhusetKarolinska InstitutetStockholmSweden
- Sachs’ Children’s HospitalSouth General HospitalStockholmSweden
| | - Colin N. Palmer
- Population Pharmacogenetics GroupBiomedical Research InstituteNinewells Hospital and Medical SchoolUniversity of DundeeDundeeUK
| | | | - Anke H. Maitland‐van der Zee
- Department of Respiratory MedicineAmsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands
- Division of Pharmacoepidemiology and Clinical PharmacologyFaculty of ScienceUtrecht UniversityUtrechtThe Netherlands
- Department of Paediatric Respiratory Medicine and AllergyEmma's Children HospitalAmsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands
| | - Erika von Mutius
- Institute for Asthma and Allergy PreventionHelmholtz Zentrum MünchenGerman Research Center for Environmental HealthMunichGermany
- Dr von Hauner Children's HospitalLudwig‐Maximilians‐UniversitätMunichGermany
- Comprehensive Pneumology Center Munich (CPC‐M)Member of the German Center for Lung ResearchMunichGermany
| | - Juan C. Celedón
- Division of Pediatric Pulmonary MedicineUPMC Children's Hospital of PittsburghUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Guy Brusselle
- Department of EpidemiologyErasmus University Medical CenterRotterdamThe Netherlands
- Department of Respiratory MedicineGhent University HospitalGhentBelgium
- Department of Respiratory MedicineErasmus University Medical CenterRotterdamThe Netherlands
| | - Fook Tim Chew
- Department of Biological SciencesNational University of SingaporeSingapore CitySingapore
| | - Eugene Bleecker
- Division of Genetics, Genomics, and Precision MedicineDepartment of Internal MedicineUniversity of Arizona College of MedicineTucsonArizonaUSA
| | - Deborah Meyers
- Division of Genetics, Genomics, and Precision MedicineDepartment of Internal MedicineUniversity of Arizona College of MedicineTucsonArizonaUSA
| | - Esteban G. Burchard
- Severe Asthma Unit, Allergy DepartmentHospital Universitario de CanariasSanta Cruz de TenerifeTenerifeSpain
- Department of Bioengineering and Therapeutic SciencesUniversity of California San FranciscoSan FranciscoCaliforniaUSA
| | - Maria Pino‐Yanes
- Genomics and Health GroupDepartment of Biochemistry, Microbiology, Cell Biology and GeneticsUniversidad de La Laguna (ULL)San Cristóbal de La Laguna, TenerifeSpain
- CIBER de Enfermedades Respiratorias (CIBERES)MadridSpain
- Instituto de Tecnologías Biomédicas (ITB)Universidad de La Laguna (ULL)San Cristóbal de La Laguna, TenerifeSpain
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11
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Basu A, Patel NG, Nicholson ED, Weiss RJ. Spatiotemporal diversity and regulation of glycosaminoglycans in cell homeostasis and human disease. Am J Physiol Cell Physiol 2022; 322:C849-C864. [PMID: 35294848 PMCID: PMC9037703 DOI: 10.1152/ajpcell.00085.2022] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Glycosaminoglycans (GAGs) are long, linear polysaccharides that are ubiquitously expressed on the cell surface and in the extracellular matrix of all animal cells. These complex carbohydrates play important roles in many cellular processes and have been implicated in many disease states, including cancer, inflammation, and genetic disorders. GAGs are among the most complex molecules in biology with enormous information content and extensive structural and functional heterogeneity. GAG biosynthesis is a nontemplate-driven process facilitated by a large group of biosynthetic enzymes that have been extensively characterized over the past few decades. Interestingly, the expression of the enzymes and the consequent structure and function of the polysaccharide chains can vary temporally and spatially during development and under certain pathophysiological conditions, suggesting their assembly is tightly regulated in cells. Due to their many key roles in cell homeostasis and disease, there is much interest in targeting the assembly and function of GAGs as a therapeutic approach. Recent advances in genomics and GAG analytical techniques have pushed the field and generated new perspectives on the regulation of mammalian glycosylation. This review highlights the spatiotemporal diversity of GAGs and the mechanisms guiding their assembly and function in human biology and disease.
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Affiliation(s)
- Amrita Basu
- 1Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia
| | - Neil G. Patel
- 1Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia,2Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia
| | - Elijah D. Nicholson
- 2Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia
| | - Ryan J. Weiss
- 1Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia,2Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia
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12
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Martín C, Ordiales H, Vázquez F, Pevida M, Rodríguez D, Merayo J, Vázquez F, García B, Quirós LM. Bacteria associated with acne use glycosaminoglycans as cell adhesion receptors and promote changes in the expression of the genes involved in their biosynthesis. BMC Microbiol 2022; 22:65. [PMID: 35219289 PMCID: PMC8881830 DOI: 10.1186/s12866-022-02477-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 02/16/2022] [Indexed: 11/14/2022] Open
Abstract
Background Cell surface glycosaminoglycans (GAGs) participate in many physiological and pathological processes, including infections and inflammatory response. Acne is a common chronic inflammatory skin disorder that affects the pilosebaceous unit and has a multifactorial etiology, including bacterial colonization of the hair follicle. This study aimed to investigate the participation of GAG in the adhesion of Propionibacterium acnes, Staphylococcus aureus and Staphylococcus epidermidis to keratinocytes and fibroblasts of the skin by competition experiments and cell surface removal using specific liases. The alteration in the transcription of the genes responsible for the synthesis of GAG induced by the adhesion of these bacteria was also analyzed by qRT-PCR. Results GAGs are involved in bacterial adherence to skin cells, especially fibroblasts, where chondroitin sulfate displayed the higher effect. Bacterial adherence produced different alterations in the transcription of the genes responsible for GAG structures. P. acnes induced mostly changes in keratinocytes, while S. epidermidis was the main cause of alterations in fibroblasts. These variations in gene expression affected all the stages in the biosynthesis of the main species of GAGs, heparan and chondroitin sulphate. Conclusions GAGs species are involved in the adhesion of acne-related bacteria to skin cells in a differential manner depending on each microorganism and cellular type, although other receptors seem to exist. Bacterial adherence led to variations on gene expression in skin cells affecting GAG chains structure what, consequently, should alter their interactions with different ligands, affecting the development of acne disease. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-022-02477-2.
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13
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Marques C, Reis CA, Vivès RR, Magalhães A. Heparan Sulfate Biosynthesis and Sulfation Profiles as Modulators of Cancer Signalling and Progression. Front Oncol 2021; 11:778752. [PMID: 34858858 PMCID: PMC8632541 DOI: 10.3389/fonc.2021.778752] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/15/2021] [Indexed: 12/17/2022] Open
Abstract
Heparan Sulfate Proteoglycans (HSPGs) are important cell surface and Extracellular Matrix (ECM) maestros involved in the orchestration of multiple cellular events in physiology and pathology. These glycoconjugates bind to various bioactive proteins via their Heparan Sulfate (HS) chains, but also through the protein backbone, and function as scaffolds for protein-protein interactions, modulating extracellular ligand gradients, cell signalling networks and cell-cell/cell-ECM interactions. The structural features of HS chains, including length and sulfation patterns, are crucial for the biological roles displayed by HSPGs, as these features determine HS chains binding affinities and selectivity. The large HS structural diversity results from a tightly controlled biosynthetic pathway that is differently regulated in different organs, stages of development and pathologies, including cancer. This review addresses the regulatory mechanisms underlying HS biosynthesis, with a particular focus on the catalytic activity of the enzymes responsible for HS glycan sequences and sulfation motifs, namely D-Glucuronyl C5-Epimerase, N- and O-Sulfotransferases. Moreover, we provide insights on the impact of different HS structural epitopes over HSPG-protein interactions and cell signalling, as well as on the effects of deregulated expression of HS modifying enzymes in the development and progression of cancer. Finally, we discuss the clinical potential of HS biosynthetic enzymes as novel targets for therapy, and highlight the importance of developing new HS-based tools for better patients' stratification and cancer treatment.
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Affiliation(s)
- Catarina Marques
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal.,Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal.,Programa Doutoral em Biologia Molecular e Celular (MCbiology), Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Celso A Reis
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal.,Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal.,Faculdade de Medicina da Universidade do Porto (FMUP), Porto, Portugal
| | | | - Ana Magalhães
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal.,Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
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14
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Lei J, Deng H, Ran Y, Lv Y, Amhare AF, Wang L, Guo X, Han J, Lammi MJ. Altered Expression of Aggrecan, FAM20B, B3GALT6, and EXTL2 in Patients with Osteoarthritis and Kashin-Beck Disease. Cartilage 2021; 13:818S-828S. [PMID: 32517548 PMCID: PMC8808786 DOI: 10.1177/1947603520932199] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE The objective of this study was to investigate the expression of enzymes involved in synthesis and modification of chondroitin sulfate (CS) in knee cartilage tissue of patients with osteoarthritis (OA) and Kashin-Beck disease (KBD). METHODS The knee articular cartilage samples were obtained from 18 age- and gender-matched donors with 6 each in KBD, OA, and control groups. Hematoxylin and eosin (HE) staining, toluidine blue (TB) staining, and immunohistochemical (IHC) staining were performed to estimate the expression level and localization of aggrecan, along with FAM20B, GalT-II, and EXTL2, which are associated with CS synthesis and modification. Rank-based analyses of variance test was used for the multiple comparisons of discrepancy in the positive staining rate among the 3 groups. RESULTS In HE and TB staining results, damaged morphology, decreased chondrocyte numbers and proteoglycans were observed in OA and KBD groups compared with the control group. In line with these trends, the positive staining rates of aggrecan were lower in KBD and OA groups than in the control group. Meanwhile, the positive staining rates of CS chain modifying enzymes FAM20B, GalT-II, and EXTL2 decreased in OA and KBD groups. CONCLUSIONS In conclusion, it was demonstrated that altered expression of CS chain modifying enzymes in OA and KBD groups influenced the synthesis procession of CS and could contribute to the damage of cartilage. Further investigation of these enzymes can provide new theoretical and experimental targets for OA and KBD pathogenesis studies.
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Affiliation(s)
- Jian Lei
- School of Public Health, Key Laboratory
of Environment and Genes Related to Diseases, Health Science Center, Xi’an Jiaotong
University, Xi’an, Shaanxi, People’s Republic of China,Shenzhen Institute, Xi’an Jiaotong
University, Shenzhen, Guangdong, People’s Republic of China
| | - Huan Deng
- School of Public Health, Key Laboratory
of Environment and Genes Related to Diseases, Health Science Center, Xi’an Jiaotong
University, Xi’an, Shaanxi, People’s Republic of China
| | - Yan Ran
- Department of Gastroenterology, the
First Affiliated Hospital, Health Science Center of Xi’an Jiaotong University,
Xi’an, People’s Republic of China
| | - Yizhen Lv
- School of Public Health, Key Laboratory
of Environment and Genes Related to Diseases, Health Science Center, Xi’an Jiaotong
University, Xi’an, Shaanxi, People’s Republic of China
| | - Abebe Feyissa Amhare
- School of Public Health, Key Laboratory
of Environment and Genes Related to Diseases, Health Science Center, Xi’an Jiaotong
University, Xi’an, Shaanxi, People’s Republic of China
| | - Liyun Wang
- School of Public Health, Key Laboratory
of Environment and Genes Related to Diseases, Health Science Center, Xi’an Jiaotong
University, Xi’an, Shaanxi, People’s Republic of China,Shenzhen Institute, Xi’an Jiaotong
University, Shenzhen, Guangdong, People’s Republic of China
| | - Xiong Guo
- School of Public Health, Key Laboratory
of Environment and Genes Related to Diseases, Health Science Center, Xi’an Jiaotong
University, Xi’an, Shaanxi, People’s Republic of China
| | - Jing Han
- School of Public Health, Key Laboratory
of Environment and Genes Related to Diseases, Health Science Center, Xi’an Jiaotong
University, Xi’an, Shaanxi, People’s Republic of China,Shenzhen Institute, Xi’an Jiaotong
University, Shenzhen, Guangdong, People’s Republic of China,Jing Han, School of Public Health, Key
Laboratory of Environment and Genes Related to Diseases, Health Science Center,
Xi’an Jiaotong University, No. 76 West Yanta Road, Xi’an, Shaanxi, 710049,
People’s Republic of China.
| | - Mikko J. Lammi
- School of Public Health, Key Laboratory
of Environment and Genes Related to Diseases, Health Science Center, Xi’an Jiaotong
University, Xi’an, Shaanxi, People’s Republic of China,Department of Integrative Medical
Biology, Umeå University, Umeå, Sweden
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15
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Dubail J, Cormier-Daire V. Chondrodysplasias With Multiple Dislocations Caused by Defects in Glycosaminoglycan Synthesis. Front Genet 2021; 12:642097. [PMID: 34220933 PMCID: PMC8242584 DOI: 10.3389/fgene.2021.642097] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 05/04/2021] [Indexed: 11/13/2022] Open
Abstract
Chondrodysplasias with multiple dislocations form a group of severe disorders characterized by joint laxity and multiple dislocations, severe short stature of pre- and post-natal onset, hand anomalies, and/or vertebral anomalies. The majority of chondrodysplasias with multiple dislocations have been associated with mutations in genes encoding glycosyltransferases, sulfotransferases, and transporters implicated in the synthesis or sulfation of glycosaminoglycans, long and unbranched polysaccharides composed of repeated disaccharide bond to protein core of proteoglycan. Glycosaminoglycan biosynthesis is a tightly regulated process that occurs mainly in the Golgi and that requires the coordinated action of numerous enzymes and transporters as well as an adequate Golgi environment. Any disturbances of this chain of reactions will lead to the incapacity of a cell to construct correct glycanic chains. This review focuses on genetic and glycobiological studies of chondrodysplasias with multiple dislocations associated with glycosaminoglycan biosynthesis defects and related animal models. Strong comprehension of the molecular mechanisms leading to those disorders, mostly through extensive phenotypic analyses of in vitro and/or in vivo models, is essential for the development of novel biomarkers for clinical screenings and innovative therapeutics for these diseases.
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Affiliation(s)
- Johanne Dubail
- Université de Paris, INSERM UMR 1163, Institut Imagine, Paris, France
| | - Valérie Cormier-Daire
- Université de Paris, INSERM UMR 1163, Institut Imagine, Paris, France.,Service de Génétique Clinique, Centre de Référence Pour Les Maladies Osseuses Constitutionnelles, AP-HP, Hôpital Necker-Enfants Malades, Paris, France
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16
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The ABCs of the atypical Fam20 secretory pathway kinases. J Biol Chem 2021; 296:100267. [PMID: 33759783 PMCID: PMC7948968 DOI: 10.1016/j.jbc.2021.100267] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/05/2021] [Accepted: 01/06/2021] [Indexed: 12/12/2022] Open
Abstract
The study of extracellular phosphorylation was initiated in late 19th century when the secreted milk protein, casein, and egg-yolk protein, phosvitin, were shown to be phosphorylated. However, it took more than a century to identify Fam20C, which phosphorylates both casein and phosvitin under physiological conditions. This kinase, along with its family members Fam20A and Fam20B, defined a new family with altered amino acid sequences highly atypical from the canonical 540 kinases comprising the kinome. Fam20B is a glycan kinase that phosphorylates xylose residues and triggers peptidoglycan biosynthesis, a role conserved from sponges to human. The protein kinase, Fam20C, conserved from nematodes to humans, phosphorylates well over 100 substrates in the secretory pathway with overall functions postulated to encompass endoplasmic reticulum homeostasis, nutrition, cardiac function, coagulation, and biomineralization. The preferred phosphorylation motif of Fam20C is SxE/pS, and structural studies revealed that related member Fam20A allosterically activates Fam20C by forming a heterodimeric/tetrameric complex. Fam20A, a pseudokinase, is observed only in vertebrates. Loss-of-function genetic alterations in the Fam20 family lead to human diseases such as amelogenesis imperfecta, nephrocalcinosis, lethal and nonlethal forms of Raine syndrome with major skeletal defects, and altered phosphate homeostasis. Together, these three members of the Fam20 family modulate a diverse network of secretory pathway components playing crucial roles in health and disease. The overarching theme of this review is to highlight the progress that has been made in the emerging field of extracellular phosphorylation and the key roles secretory pathway kinases play in an ever-expanding number of cellular processes.
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17
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Kitazawa K, Nadanaka S, Kadomatsu K, Kitagawa H. Chondroitin 6-sulfate represses keratinocyte proliferation in mouse skin, which is associated with psoriasis. Commun Biol 2021; 4:114. [PMID: 33495490 PMCID: PMC7835381 DOI: 10.1038/s42003-020-01618-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 12/18/2020] [Indexed: 02/08/2023] Open
Abstract
Chondroitin sulfates are implicated in epidermal biology, but functional significance of chondroitin sulfates remains unclear. Here, we report that chondroitin 6-sulfate is important for the maintenance of epidermal homeostasis. Mice deficient in chondroitin 6-O-sulfotransferase-1 (C6st-1), which is involved in biosynthesis of chondroitin 6-sulfate, exhibited keratinocyte hyperproliferation and impaired skin permeability barrier function. Chondroitin 6-sulfate directly interacted with the EGF receptor and negatively controlled ligand-induced EGF receptor signaling. Normal function of hyperproliferative C6st-1-knockout mouse-derived keratinocytes was rescued by treatment with exogenous chondroitin 6-sulfate. Epidermal hyperplasia, induced using imiquimod, was more severe in C6st-1-knockout mice than in C6st-1 wild-type mice. Taken together, these findings indicate that chondroitin 6-sulfate represses keratinocyte proliferation in normal skin, and that the expression level of C6st-1 may be associated with susceptibility to psoriasis.
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Affiliation(s)
- Kazuyuki Kitazawa
- Laboratory of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe, 658-8558, Japan
| | - Satomi Nadanaka
- Laboratory of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe, 658-8558, Japan
| | - Kenji Kadomatsu
- Department of Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Hiroshi Kitagawa
- Laboratory of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe, 658-8558, Japan.
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18
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Faria-Ramos I, Poças J, Marques C, Santos-Antunes J, Macedo G, Reis CA, Magalhães A. Heparan Sulfate Glycosaminoglycans: (Un)Expected Allies in Cancer Clinical Management. Biomolecules 2021; 11:136. [PMID: 33494442 PMCID: PMC7911160 DOI: 10.3390/biom11020136] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 12/12/2022] Open
Abstract
In an era when cancer glycobiology research is exponentially growing, we are witnessing a progressive translation of the major scientific findings to the clinical practice with the overarching aim of improving cancer patients' management. Many mechanistic cell biology studies have demonstrated that heparan sulfate (HS) glycosaminoglycans are key molecules responsible for several molecular and biochemical processes, impacting extracellular matrix properties and cellular functions. HS can interact with a myriad of different ligands, and therefore, hold a pleiotropic role in regulating the activity of important cellular receptors and downstream signalling pathways. The aberrant expression of HS glycan chains in tumours determines main malignant features, such as cancer cell proliferation, angiogenesis, invasion and metastasis. In this review, we devote particular attention to HS biological activities, its expression profile and modulation in cancer. Moreover, we highlight HS clinical potential to improve both diagnosis and prognosis of cancer, either as HS-based biomarkers or as therapeutic targets.
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Affiliation(s)
- Isabel Faria-Ramos
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, 4200-135 Porto, Portugal; (I.F.-R.); (J.P.); (C.M.); (J.S.-A.); (C.A.R.)
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-135 Porto, Portugal
| | - Juliana Poças
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, 4200-135 Porto, Portugal; (I.F.-R.); (J.P.); (C.M.); (J.S.-A.); (C.A.R.)
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-135 Porto, Portugal
- Molecular Biology Department, Instituto de Ciências Biomédicas Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
| | - Catarina Marques
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, 4200-135 Porto, Portugal; (I.F.-R.); (J.P.); (C.M.); (J.S.-A.); (C.A.R.)
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-135 Porto, Portugal
- Molecular Biology Department, Instituto de Ciências Biomédicas Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
| | - João Santos-Antunes
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, 4200-135 Porto, Portugal; (I.F.-R.); (J.P.); (C.M.); (J.S.-A.); (C.A.R.)
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-135 Porto, Portugal
- Pathology Department, Faculdade de Medicina, University of Porto, 4200-319 Porto, Portugal;
- Gastroenterology Department, Centro Hospitalar S. João, 4200-319 Porto, Portugal
| | - Guilherme Macedo
- Pathology Department, Faculdade de Medicina, University of Porto, 4200-319 Porto, Portugal;
- Gastroenterology Department, Centro Hospitalar S. João, 4200-319 Porto, Portugal
| | - Celso A. Reis
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, 4200-135 Porto, Portugal; (I.F.-R.); (J.P.); (C.M.); (J.S.-A.); (C.A.R.)
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-135 Porto, Portugal
- Molecular Biology Department, Instituto de Ciências Biomédicas Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
- Pathology Department, Faculdade de Medicina, University of Porto, 4200-319 Porto, Portugal;
| | - Ana Magalhães
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, 4200-135 Porto, Portugal; (I.F.-R.); (J.P.); (C.M.); (J.S.-A.); (C.A.R.)
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-135 Porto, Portugal
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19
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Filipek-Górniok B, Habicher J, Ledin J, Kjellén L. Heparan Sulfate Biosynthesis in Zebrafish. J Histochem Cytochem 2020; 69:49-60. [PMID: 33216642 DOI: 10.1369/0022155420973980] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The biosynthesis of heparan sulfate (HS) proteoglycans occurs in the Golgi compartment of cells and will determine the sulfation pattern of HS chains, which in turn will have a large impact on the biological activity of the proteoglycans. Earlier studies in mice have demonstrated the importance of HS for embryonic development. In this review, the enzymes participating in zebrafish HS biosynthesis, along with a description of enzyme mutants available for functional studies, are presented. The consequences of the zebrafish genome duplication and maternal transcript contribution are briefly discussed as are the possibilities of CRISPR/Cas9 methodologies to use the zebrafish model system for studies of biosynthesis as well as proteoglycan biology.
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Affiliation(s)
- Beata Filipek-Górniok
- Department of Organismal Biology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Judith Habicher
- Department of Neuroscience, Uppsala University, Uppsala, Sweden
| | - Johan Ledin
- Department of Organismal Biology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Lena Kjellén
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
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20
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Heparan Sulfate Proteoglycans Biosynthesis and Post Synthesis Mechanisms Combine Few Enzymes and Few Core Proteins to Generate Extensive Structural and Functional Diversity. Molecules 2020; 25:molecules25184215. [PMID: 32937952 PMCID: PMC7570499 DOI: 10.3390/molecules25184215] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/08/2020] [Accepted: 09/09/2020] [Indexed: 02/06/2023] Open
Abstract
Glycosylation is a common and widespread post-translational modification that affects a large majority of proteins. Of these, a small minority, about 20, are specifically modified by the addition of heparan sulfate, a linear polysaccharide from the glycosaminoglycan family. The resulting molecules, heparan sulfate proteoglycans, nevertheless play a fundamental role in most biological functions by interacting with a myriad of proteins. This large functional repertoire stems from the ubiquitous presence of these molecules within the tissue and a tremendous structural variety of the heparan sulfate chains, generated through both biosynthesis and post synthesis mechanisms. The present review focusses on how proteoglycans are “gagosylated” and acquire structural complexity through the concerted action of Golgi-localized biosynthesis enzymes and extracellular modifying enzymes. It examines, in particular, the possibility that these enzymes form complexes of different modes of organization, leading to the synthesis of various oligosaccharide sequences.
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21
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Pu A, Mishra MK, Dong Y, Ghorbanigazar S, Stephenson EL, Rawji KS, Silva C, Kitagawa H, Sawcer S, Yong VW. The glycosyltransferase EXTL2 promotes proteoglycan deposition and injurious neuroinflammation following demyelination. J Neuroinflammation 2020; 17:220. [PMID: 32703234 PMCID: PMC7379813 DOI: 10.1186/s12974-020-01895-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 07/13/2020] [Indexed: 02/07/2023] Open
Abstract
Background Chondroitin sulfate proteoglycans (CSPGs) are potent inhibitors of axonal regrowth and remyelination. More recently, they have also been highlighted as a modulator of macrophage infiltration into the central nervous system in experimental autoimmune encephalomyelitis, an inflammatory model of multiple sclerosis. Methods We interrogated results from single nucleotide polymorphisms (SNPs) lying in or close to genes regulating CSPG metabolism in the summary results from two publicly available systematic studies of multiple sclerosis (MS) genetics. A demyelinating injury model in the spinal cord of exostosin-like 2 deficient (EXTL2-/-) mice was used to investigate the effects of dysregulation of EXTL2 on remyelination. Cell cultures of bone marrow-derived macrophages and primary oligodendrocyte precursor cells and neurons were supplemented with purified CSPGs or conditioned media to assess potential mechanisms of action. Results The strongest evidence for genetic association was seen for SNPs mapping to the region containing the glycosyltransferase exostosin-like 2 (EXTL2), an enzyme that normally suppresses CSPG biosynthesis. Six of these SNPs showed genome-wide significant evidence for association in one of the studies with concordant and nominally significant effects in the second study. We then went on to show that a demyelinating injury to the spinal cord of EXTL2−/− mice resulted in excessive deposition of CSPGs in the lesion area. EXTL2−/− mice had exacerbated axonal damage and myelin disruption relative to wild-type mice, and increased representation of microglia/macrophages within lesions. In tissue culture, activated bone marrow-derived macrophages from EXTL2−/− mice overproduce tumor necrosis factor α (TNFα) and matrix metalloproteinases (MMPs). Conclusions These results emphasize CSPGs as a prominent modulator of neuroinflammation and they highlight CSPGs accumulating in lesions in promoting axonal injury.
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Affiliation(s)
- Annie Pu
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, T2N 4 N1, Calgary, Canada
| | - Manoj K Mishra
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, T2N 4 N1, Calgary, Canada
| | - Yifei Dong
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, T2N 4 N1, Calgary, Canada
| | - Samira Ghorbanigazar
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, T2N 4 N1, Calgary, Canada
| | - Erin L Stephenson
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, T2N 4 N1, Calgary, Canada
| | - Khalil S Rawji
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, T2N 4 N1, Calgary, Canada
| | - Claudia Silva
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, T2N 4 N1, Calgary, Canada
| | | | | | - V Wee Yong
- Department of Clinical Neurosciences and the Hotchkiss Brain Institute, University of Calgary, T2N 4 N1, Calgary, Canada. .,University of Calgary, 3330 Hospital Drive, Calgary, Alberta, T3A 4X9, Canada.
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22
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Nadanaka S, Hashiguchi T, Kitagawa H. Aberrant glycosaminoglycan biosynthesis by tumor suppressor EXTL2 deficiency promotes liver inflammation and tumorigenesis through Toll-like 4 receptor signaling. FASEB J 2020; 34:8385-8401. [PMID: 32347583 DOI: 10.1096/fj.201902076r] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 03/30/2020] [Accepted: 04/11/2020] [Indexed: 02/07/2023]
Abstract
Certain proteoglycans, consisting of a core protein and glycosaminoglycan (GAG) chains, are among the many types of biomolecules that can function as damage-associated molecular pattern molecules (DAMPs). We, therefore, hypothesized that the expression level and structural alteration of GAGs affect inflammation. We have previously reported that the effects on GAG biosynthesis caused by loss of the tumor suppressor gene exostosin-like 2 (Extl2) influence liver injury and regeneration processes. To examine how altered GAG biosynthesis may underscore the relationship between inflammation and tumorigenesis, we assessed its role in non-alcoholic steatohepatitis and hepatocarcinoma (HCC) induced by dietary obesity and insulin-resistance. We demonstrated that GAGs produced in the absence of EXTL2 act as DAMPs and directly input signals into cells via the Toll-like 4 receptor. In addition, the subsequent transcriptional activation of inflammatory and tumor-promoting cytokines by NF-κB contributes to injury- and inflammation-driven tumor promotion. Thus, dysregulated biosynthesis of GAGs is considered to increase the risk of HCC in a background of obesity and diabetes.
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Affiliation(s)
- Satomi Nadanaka
- Laboratory of Biochemistry, Kobe Pharmaceutical University, Kobe, Japan
| | | | - Hiroshi Kitagawa
- Laboratory of Biochemistry, Kobe Pharmaceutical University, Kobe, Japan
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23
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Neuronal and Astrocytic Differentiation from Sanfilippo C Syndrome iPSCs for Disease Modeling and Drug Development. J Clin Med 2020; 9:jcm9030644. [PMID: 32121121 PMCID: PMC7141323 DOI: 10.3390/jcm9030644] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/21/2020] [Accepted: 02/26/2020] [Indexed: 12/15/2022] Open
Abstract
Sanfilippo syndrome type C (mucopolysaccharidosis IIIC) is an early-onset neurodegenerative lysosomal storage disorder, which is currently untreatable. The vast majority of studies focusing on disease mechanisms of Sanfilippo syndrome were performed on non-neural cells or mouse models, which present obvious limitations. Induced pluripotent stem cells (iPSCs) are an efficient way to model human diseases in vitro. Recently developed transcription factor-based differentiation protocols allow fast and efficient conversion of iPSCs into the cell type of interest. By applying these protocols, we have generated new neuronal and astrocytic models of Sanfilippo syndrome using our previously established disease iPSC lines. Moreover, our neuronal model exhibits disease-specific molecular phenotypes, such as increase in lysosomes and heparan sulfate. Lastly, we tested an experimental, siRNA-based treatment previously shown to be successful in patients' fibroblasts and demonstrated its lack of efficacy in neurons. Our findings highlight the need to use relevant human cellular models to test therapeutic interventions and shows the applicability of our neuronal and astrocytic models of Sanfilippo syndrome for future studies on disease mechanisms and drug development.
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24
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Martín C, Fernández-Vega I, Suárez JE, Quirós LM. Adherence of Lactobacillus salivarius to HeLa Cells Promotes Changes in the Expression of the Genes Involved in Biosynthesis of Their Ligands. Front Immunol 2020; 10:3019. [PMID: 31998306 PMCID: PMC6962182 DOI: 10.3389/fimmu.2019.03019] [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: 10/01/2019] [Accepted: 12/10/2019] [Indexed: 12/11/2022] Open
Abstract
The attachment of a variety of Lactobacilli to the mucosal surfaces is accomplished through the interaction of OppA, a superficial bacterial protein also involved in oligopeptide internalization, and the glycosaminoglycan moiety of the proteoglycans that form the epithelial cell glycocalyx. Upon the interaction of the vaginal isolate Lactobacillus salivarius Lv72 and HeLa cell cultures, the expression of oppA increased more than 50-fold over the following 30 min, with the overexpression enduring, albeit at a lower rate, for up to 24 h. Conversely, transcriptional analysis of 62 genes involved in proteoglycan biosynthesis revealed generalized repression of genes whose products catalyze different steps of the whole pathway. This led to decreases in the superficial concentration of heparan (60%) and chondroitin sulfate (40%), although the molecular masses of these glycosaminoglycans were higher than those of the control cultures. Despite this lowering in the concentration of the receptor, attachment of the Lactobacilli proceeded, and completely overlaid the underlying HeLa cell culture.
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Affiliation(s)
- Carla Martín
- Área de Microbiología, Universidad de Oviedo, Oviedo, Spain.,Instituto Universitario Fernández-Vega, Universidad de Oviedo, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | - Iván Fernández-Vega
- Instituto Universitario Fernández-Vega, Universidad de Oviedo, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain.,Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Juan E Suárez
- Área de Microbiología, Universidad de Oviedo, Oviedo, Spain
| | - Luis M Quirós
- Área de Microbiología, Universidad de Oviedo, Oviedo, Spain.,Instituto Universitario Fernández-Vega, Universidad de Oviedo, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
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25
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Dynamic Expression of Genes Involved in Proteoglycan/Glycosaminoglycan Metabolism during Skin Development. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9873471. [PMID: 30228991 PMCID: PMC6136507 DOI: 10.1155/2018/9873471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 07/04/2018] [Indexed: 11/30/2022]
Abstract
Glycosaminoglycans are important for cell signaling and therefore for proper embryonic development and adult homeostasis. Expressions of genes involved in proteoglycan/glycosaminoglycan (GAG) metabolism and of genes coding for growth factors known to bind GAGs were analyzed during skin development by microarray analysis and real time quantitative PCR. GAG related genes were organized in six categories based on their role in GAG homeostasis, viz. (1) production of precursor molecules, (2) production of core proteins, (3) synthesis of the linkage region, (4) polymerization, (5) modification, and (6) degradation of the GAG chain. In all categories highly dynamic up- and downregulations were observed during skin development, including differential expression of GAG modifying isoenzymes, core proteins, and growth factors. In two mice models, one overexpressing heparanase and one lacking C5 epimerase, differential expression of only few genes was observed. Data show that during skin development a highly dynamic and complex expression of GAG-associated genes occurs. This likely reflects quantitative and qualitative changes in GAGs/proteoglycans, including structural fine tuning, which may be correlated with growth factor handling.
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26
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Swart M, Troeberg L. Effect of Polarization and Chronic Inflammation on Macrophage Expression of Heparan Sulfate Proteoglycans and Biosynthesis Enzymes. J Histochem Cytochem 2018; 67:9-27. [PMID: 30205019 DOI: 10.1369/0022155418798770] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Heparan sulfate (HS) proteoglycans on immune cells have the ability to bind to and regulate the bioactivity more than 400 bioactive protein ligands, including many chemokines, cytokines, and growth factors. This makes them important regulators of the phenotype and behavior of immune cells. Here we review how HS biosynthesis in macrophages is regulated during polarization and in chronic inflammatory diseases such as rheumatoid arthritis, atherosclerosis, asthma, chronic obstructive pulmonary disease and obesity, by analyzing published micro-array data and mechanistic studies in this area. We describe that macrophage expression of many HS biosynthesis and core proteins is strongly regulated by macrophage polarization, and that these expression patterns are recapitulated in chronic inflammation. Such changes in HS biosynthetic enzyme expression are likely to have a significant impact on the phenotype of macrophages in chronic inflammatory diseases by altering their interactions with chemokines, cytokines, and growth factors.
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Affiliation(s)
- Maarten Swart
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom
| | - Linda Troeberg
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom
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27
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Liu X, Li N, Zhang H, Liu J, Zhou N, Ran C, Chen X, Lu Y, Wang X, Qin C, Xiao J, Liu C. Inactivation of Fam20b in the neural crest-derived mesenchyme of mouse causes multiple craniofacial defects. Eur J Oral Sci 2018; 126:433-436. [PMID: 30105814 DOI: 10.1111/eos.12563] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/09/2018] [Indexed: 11/29/2022]
Abstract
The glycosaminoglycan (GAG) chains attached to the core proteins of proteoglycans exert multiple roles, such as enriching signal molecules and regulating the binding of ligands to the corresponding receptors. A newly identified kinase - family with sequence similarity 20 member B (FAM20B) - is essential for the formation of GAG chains. The FAM20B protein phosphorylates the initial xylose on the side chain of a serine residue in the protein. Although the GAG chains of proteoglycans are believed to be indispensable during craniofacial development, there are few reports on their exact functions in craniofacial organogenesis. In this study, by mating Wnt1-cre mice with Fam20b-floxed mice (Fam20bflox/flox), we created Wnt1-Cre;Fam20bflox/flox mice in which Fam20b is ablated in the neural crest-derived mesenchyme. The Wnt1-Cre;Fam20bflox/flox mice died immediately after birth because of complete cleft palates. In addition to cleft palate, Wnt1-Cre;Fam20bflox/flox mice also manifested tongue elevation, micrognathia, microcephaly, suture widening, and reduced mineralization in the calvaria, facial bones, and temporomandibular joint. These findings indicate that the proteoglycans formed through the catalysis of FAM20B are essential for the morphogenesis and mineralization of the craniofacial complex.
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Affiliation(s)
- Xuena Liu
- Department of Radiology, The 2nd Hospital Affiliated to Dalian Medical University, Dalian, Liaoning, China
| | - Nan Li
- Department of Oral Pathology, College of Stomatology, Dalian Medical University, Dalian, Liaoning, China
| | - Hua Zhang
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - Jing Liu
- Department of Oral Pathology, College of Stomatology, Dalian Medical University, Dalian, Liaoning, China
| | - Nan Zhou
- Department of Oral Pathology, College of Stomatology, Dalian Medical University, Dalian, Liaoning, China
| | - Chunxiao Ran
- Department of Oral Pathology, College of Stomatology, Dalian Medical University, Dalian, Liaoning, China
| | - Xiaoyan Chen
- Department of Oral Pathology, College of Stomatology, Dalian Medical University, Dalian, Liaoning, China
| | - Yongbo Lu
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - Xiaofang Wang
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - Chunlin Qin
- Department of Biomedical Sciences and Center for Craniofacial Research and Diagnosis, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - Jing Xiao
- Department of Oral Pathology, College of Stomatology, Dalian Medical University, Dalian, Liaoning, China
| | - Chao Liu
- Department of Oral Pathology, College of Stomatology, Dalian Medical University, Dalian, Liaoning, China
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Mizumoto S. Defects in Biosynthesis of Glycosaminoglycans Cause Hereditary Bone, Skin, Heart, Immune, and Neurological Disorders. TRENDS GLYCOSCI GLYC 2018. [DOI: 10.4052/tigg.1812.2j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Shuji Mizumoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University
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29
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Awad W, Kjellström S, Svensson Birkedal G, Mani K, Logan DT. Structural and Biophysical Characterization of Human EXTL3: Domain Organization, Glycosylation, and Solution Structure. Biochemistry 2018; 57:1166-1177. [PMID: 29346724 DOI: 10.1021/acs.biochem.7b00557] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Heparan sulfate proteoglycans are proteins substituted with one or more heparan sulfate (HS) polysaccharides, found in abundance at cell surfaces. HS chains influence the activity of many biologically important molecules involved in cellular communication and signaling. The exostosin (EXT) proteins are glycosyltransferases in the Golgi apparatus that assemble HS chains on HSPGs. The EXTL3 enzyme mainly works as an initiator in HS biosynthesis. In this work, human lumenal N-glycosylated EXTL3 (EXTL3ΔN) was cloned, expressed in human embryonic kidney cells, and purified. Various biophysical and biochemical approaches were then employed to elucidate the N-glycosylation sites and the function of their attached N-glycans. Furthermore, the stability and conformation of the purified EXTL3ΔN protein in solution have been analyzed. Our data show that EXTL3ΔN has N-glycans at least at two positions, Asn290 and Asn592, which seem to be critical for proper protein folding and/or release. EXTL3ΔN is quite stable, as high temperature (∼59 °C) was required for denaturation. Deconvolution of the EXTL3ΔN far-UV CD spectrum revealed a substantial fraction of β sheets (25%) with a minor proportion of α-helices (14%) in the secondary structure. Solution small-angle X-ray scattering and dynamic light scattering revealed an extended structure suggestive of a dimeric arrangement and consisting of two distinct regions, narrow and broad, respectively. This is consistent with bioinformatics analyses suggesting a 3-domain structure with two glycosyltransferase domains and a coiled-coil domain.
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Affiliation(s)
- Wael Awad
- Biochemistry and Structural Biology, Centre for Molecular Protein Science, Deptartment of Chemistry, Lund University , SE-221 00 Lund, Sweden.,Department of Biophysics, Faculty of Science, Cairo University , 12316 Cairo, Egypt
| | - Sven Kjellström
- Biochemistry and Structural Biology, Centre for Molecular Protein Science, Deptartment of Chemistry, Lund University , SE-221 00 Lund, Sweden
| | - Gabriel Svensson Birkedal
- Department of Experimental Medical Science, Division of Neuroscience, Glycobiology Group, Lund University , SE-221 00 Lund, Sweden
| | - Katrin Mani
- Department of Experimental Medical Science, Division of Neuroscience, Glycobiology Group, Lund University , SE-221 00 Lund, Sweden
| | - Derek T Logan
- Biochemistry and Structural Biology, Centre for Molecular Protein Science, Deptartment of Chemistry, Lund University , SE-221 00 Lund, Sweden
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30
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Nadanaka S, Kitagawa H. Exostosin-like 2 regulates FGF2 signaling by controlling the endocytosis of FGF2. Biochim Biophys Acta Gen Subj 2018; 1862:791-799. [PMID: 29305908 DOI: 10.1016/j.bbagen.2018.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 12/16/2017] [Accepted: 01/02/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND Heparan sulfate proteoglycans are ubiquitously expressed on cell surfaces and in extracellular matrices, and are engaged in heparin-binding growth factor-related signal transduction. Thus, changes in the amounts, structures, and chain lengths of heparan sulfate have profound effects on aspects of cell growth controlled by heparin-binding growth factors such as FGF2. Exostosin glycosyltransferases (EXT1, EXT2, EXTL1, EXTL2, and EXTL3) control heparan sulfate biosynthesis, and the expression levels of their genes regulate the amounts, chain lengths, and sulfation patterns of heparan sulfate. Unlike EXT1, EXT2, and EXTL3, EXTL2 functions chain termination of heparan sulfate. Here, we examined the importance of EXTL2 in FGF2-dependent signaling. METHODS We investigated heparan sulfate biosynthesis and FGF2 signaling using four cell lines, EXT1-deficient cells, EXT2-, EXTL2-, or EXTL3-knockdown cells, by HPLC, qRT-PCR, flow cytometry, and western blotting. RESULTS Reduced expression of either EXT1, EXT2, or EXTL3 decreased heparan sulfate biosynthesis, and consequently suppressed the FGF2-dependent proliferation of mouse L fibroblasts. In contrast, although knockdown of EXTL2 increased the amounts of heparan sulfate, FGF2-dependent proliferation was significantly inhibited because the increased heparan sulfate enhanced the incorporation of FGF2 into the cells. CONCLUSIONS EXTL2 controls FGF2 signaling through regulation of heparan sulfate biosynthesis in a manner distinct from that of other exostosins. GENERAL SIGNIFICANCE This study provides new insights into the regulatory mechanisms of FGF2 signaling by EXTL2.
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Affiliation(s)
- Satomi Nadanaka
- Department of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe 658-8558, Japan
| | - Hiroshi Kitagawa
- Department of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe 658-8558, Japan.
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31
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Nadanaka S, Kinouchi H, Kitagawa H. Chondroitin sulfate-mediated N-cadherin/β-catenin signaling is associated with basal-like breast cancer cell invasion. J Biol Chem 2017; 293:444-465. [PMID: 29183998 DOI: 10.1074/jbc.m117.814509] [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: 08/25/2017] [Revised: 11/20/2017] [Indexed: 12/20/2022] Open
Abstract
Tumor metastasis involves cancer cell invasion across basement membranes and interstitial tissues. The initial invasion step consists of adherence of the tumor cell to the extracellular matrix (ECM), and this binding transduces a variety of signals from the ECM to the tumor cell. Accordingly, it is critical to establish the mechanisms by which extracellular cues influence the intracellular activities that regulate tumor cell invasion. Here, we found that invasion of the basal-like breast cancer cell line BT-549 is enhanced by the ECM component chondroitin sulfates (CSs). CSs interacted with and induced proteolytic cleavage of N-cadherin in the BT-549 cells, yielding a C-terminal intracellular N-cadherin fragment that formed a complex with β-catenin. Of note, the cleavage of N-cadherin increased cytoplasmic and nuclear β-catenin levels; induced the matrix metalloproteinase 9 (MMP9) gene, a target of β-catenin nuclear signaling; and augmented the invasion potential of the cells. We also found that CS-induced N-cadherin proteolysis requires caveolae-mediated endocytosis. An inhibitor of that process, nystatin, blocked both the endocytosis and proteolytic cleavage of N-cadherin induced by CS and also suppressed BT-549 cell invasion. Knock-out of chondroitin 4-O-sulfotransferase-1 (C4ST-1), a key CS biosynthetic enzyme, suppressed activation of the N-cadherin/β-catenin pathway through N-cadherin endocytosis and significantly decreased BT-549 cell invasion. These results suggest that CSs produced by C4ST-1 might be useful therapeutic targets in the management of basal-like breast cancers.
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Affiliation(s)
- Satomi Nadanaka
- From the Department of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe 658-8558, Japan
| | - Hiroki Kinouchi
- From the Department of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe 658-8558, Japan
| | - Hiroshi Kitagawa
- From the Department of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe 658-8558, Japan
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32
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Epigenetic Regulation of the Biosynthesis & Enzymatic Modification of Heparan Sulfate Proteoglycans: Implications for Tumorigenesis and Cancer Biomarkers. Int J Mol Sci 2017; 18:ijms18071361. [PMID: 28672878 PMCID: PMC5535854 DOI: 10.3390/ijms18071361] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 06/05/2017] [Accepted: 06/22/2017] [Indexed: 02/06/2023] Open
Abstract
Emerging evidence suggests that the enzymes in the biosynthetic pathway for the synthesis of heparan sulfate moieties of heparan sulfate proteoglycans (HSPGs) are epigenetically regulated at many levels. As the exact composition of the heparan sulfate portion of the resulting HSPG molecules is critical to the broad spectrum of biological processes involved in oncogenesis, the epigenetic regulation of heparan sulfate biosynthesis has far-reaching effects on many cellular activities related to cancer progression. Given the current focus on developing new anti-cancer therapeutics focused on epigenetic targets, it is important to understand the effects that these emerging therapeutics may have on the synthesis of HSPGs as alterations in HSPG composition may have profound and unanticipated effects. As an introduction, this review will briefly summarize the variety of important roles which HSPGs play in a wide-spectrum of cancer-related cellular and physiological functions and then describe the biosynthesis of the heparan sulfate chains of HSPGs, including how alterations observed in cancer cells serve as potential biomarkers. This review will then focus on detailing the multiple levels of epigenetic regulation of the enzymes in the heparan sulfate synthesis pathway with a particular focus on regulation by miRNA and effects of epigenetic therapies on HSPGs. We will also explore the use of lectins to detect differences in heparan sulfate composition and preview their potential diagnostic and prognostic use in the clinic.
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33
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Miyata S, Kitagawa H. Formation and remodeling of the brain extracellular matrix in neural plasticity: Roles of chondroitin sulfate and hyaluronan. Biochim Biophys Acta Gen Subj 2017. [PMID: 28625420 DOI: 10.1016/j.bbagen.2017.06.010] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND The extracellular matrix (ECM) of the brain is rich in glycosaminoglycans such as chondroitin sulfate (CS) and hyaluronan. These glycosaminoglycans are organized into either diffuse or condensed ECM. Diffuse ECM is distributed throughout the brain and fills perisynaptic spaces, whereas condensed ECM selectively surrounds parvalbumin-expressing inhibitory neurons (PV cells) in mesh-like structures called perineuronal nets (PNNs). The brain ECM acts as a non-specific physical barrier that modulates neural plasticity and axon regeneration. SCOPE OF REVIEW Here, we review recent progress in understanding of the molecular basis of organization and remodeling of the brain ECM, and the involvement of several types of experience-dependent neural plasticity, with a particular focus on the mechanism that regulates PV cell function through specific interactions between CS chains and their binding partners. We also discuss how the barrier function of the brain ECM restricts dendritic spine dynamics and limits axon regeneration after injury. MAJOR CONCLUSIONS The brain ECM not only forms physical barriers that modulate neural plasticity and axon regeneration, but also forms molecular brakes that actively controls maturation of PV cells and synapse plasticity in which sulfation patterns of CS chains play a key role. Structural remodeling of the brain ECM modulates neural function during development and pathogenesis. GENERAL SIGNIFICANCE Genetic or enzymatic manipulation of the brain ECM may restore neural plasticity and enhance recovery from nerve injury. This article is part of a Special Issue entitled Neuro-glycoscience, edited by Kenji Kadomatsu and Hiroshi Kitagawa.
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Affiliation(s)
- Shinji Miyata
- Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Nagoya 464-8601, Japan
| | - Hiroshi Kitagawa
- Department of Biochemistry, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Kobe 658-8558, Japan.
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34
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Nagae M, Mishra SK, Neyazaki M, Oi R, Ikeda A, Matsugaki N, Akashi S, Manya H, Mizuno M, Yagi H, Kato K, Senda T, Endo T, Nogi T, Yamaguchi Y. 3D structural analysis of protein O-mannosyl kinase, POMK, a causative gene product of dystroglycanopathy. Genes Cells 2017; 22:348-359. [PMID: 28251761 DOI: 10.1111/gtc.12480] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 01/24/2017] [Indexed: 11/29/2022]
Abstract
Orchestration of the multiple enzymes engaged in O-mannose glycan synthesis provides a matriglycan on α-dystroglycan (α-DG) which attracts extracellular matrix (ECM) proteins such as laminin. Aberrant O-mannosylation of α-DG leads to severe congenital muscular dystrophies due to detachment of ECM proteins from the basal membrane. Phosphorylation at C6-position of O-mannose catalyzed by protein O-mannosyl kinase (POMK) is a crucial step in the biosynthetic pathway of O-mannose glycan. Several mis-sense mutations of the POMK catalytic domain are known to cause a severe congenital muscular dystrophy, Walker-Warburg syndrome. Due to the low sequence similarity with other typical kinases, structure-activity relationships of this enzyme remain unclear. Here, we report the crystal structures of the POMK catalytic domain in the absence and presence of an ATP analogue and O-mannosylated glycopeptide. The POMK catalytic domain shows a typical protein kinase fold consisting of N- and C-lobes. Mannose residue binds to POMK mainly via the hydroxyl group at C2-position, differentiating from other monosaccharide residues. Intriguingly, the two amino acid residues K92 and D228, interacting with the triphosphate group of ATP, are donated from atypical positions in the primary structure. Mutations in this protein causing muscular dystrophies can now be rationalized.
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Affiliation(s)
- Masamichi Nagae
- Structural Glycobiology Team, Systems Glycobiology Research Group, RIKEN-Max Planck Joint Research Center, RIKEN Global Research Cluster, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Sushil K Mishra
- Structural Glycobiology Team, Systems Glycobiology Research Group, RIKEN-Max Planck Joint Research Center, RIKEN Global Research Cluster, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Makiko Neyazaki
- Graduate School of Medical Life Science, Yokohama City University, Tsurumi, Yokohama, 230-0045, Japan
| | - Rika Oi
- Graduate School of Medical Life Science, Yokohama City University, Tsurumi, Yokohama, 230-0045, Japan
| | - Akemi Ikeda
- Structural Glycobiology Team, Systems Glycobiology Research Group, RIKEN-Max Planck Joint Research Center, RIKEN Global Research Cluster, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Naohiro Matsugaki
- Structural Biology Research Center, High Energy Accelerator Research Organization, Tsukuba, 305-0801, Japan
| | - Satoko Akashi
- Graduate School of Medical Life Science, Yokohama City University, Tsurumi, Yokohama, 230-0045, Japan
| | - Hiroshi Manya
- Molecular Glycobiology, Research Team for Mechanism of Aging, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi-ku, Tokyo, 173-0015, Japan
| | - Mamoru Mizuno
- The Noguchi Institute, 1-9-7, Kaga, Itabashi-ku, Tokyo, 173-0003, Japan
| | - Hirokazu Yagi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Mizuho-ku, Nagoya, 467-8603, Japan
| | - Koichi Kato
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Mizuho-ku, Nagoya, 467-8603, Japan.,Okazaki Institute for Integrative Bioscience and Institute for Molecular Sciences, National Institutes of Natural Sciences, Okazaki, 444-8787, Japan
| | - Toshiya Senda
- Structural Biology Research Center, High Energy Accelerator Research Organization, Tsukuba, 305-0801, Japan
| | - Tamao Endo
- Molecular Glycobiology, Research Team for Mechanism of Aging, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Itabashi-ku, Tokyo, 173-0015, Japan
| | - Terukazu Nogi
- Graduate School of Medical Life Science, Yokohama City University, Tsurumi, Yokohama, 230-0045, Japan
| | - Yoshiki Yamaguchi
- Structural Glycobiology Team, Systems Glycobiology Research Group, RIKEN-Max Planck Joint Research Center, RIKEN Global Research Cluster, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
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35
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Keira Y, Wada M, Ishikawa HO. Regulation of Drosophila Development by the Golgi Kinase Four-Jointed. Curr Top Dev Biol 2017; 123:143-179. [DOI: 10.1016/bs.ctdb.2016.11.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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36
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Mendoza F, Lluch JM, Masgrau L. Computational insights into active site shaping for substrate specificity and reaction regioselectivity in the EXTL2 retaining glycosyltransferase. Org Biomol Chem 2017; 15:9095-9107. [DOI: 10.1039/c7ob01937h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
QM(DFT)/MM calculations and molecular dynamics simulations on wild-type retaining α1,4-N-acetylhexosaminyltransferase (EXTL2) and Arg293Ala, Asp246Ala, Arg293Ala/Asp246Ala and Asp246Glu mutants are used to understand the role of these two residues.
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Affiliation(s)
- Fernanda Mendoza
- Departamento de Ciencias Químicas
- Facultad de Ciencias Exactas
- Universidad Andres Bello
- Sede Concepción
- Talcahuano
| | - José M. Lluch
- Institut de Biotecnologia i de Biomedicina (IBB)
- Universitat Autònoma de Barcelona
- 08193 Bellaterra (Cerdanyola del Vallès)
- Barcelona
- Spain
| | - Laura Masgrau
- Institut de Biotecnologia i de Biomedicina (IBB)
- Universitat Autònoma de Barcelona
- 08193 Bellaterra (Cerdanyola del Vallès)
- Barcelona
- Spain
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37
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Ghiselli G. Drug-Mediated Regulation of Glycosaminoglycan Biosynthesis. Med Res Rev 2016; 37:1051-1094. [DOI: 10.1002/med.21429] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 10/26/2016] [Accepted: 10/26/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Giancarlo Ghiselli
- Glyconova Srl; Parco Scientifico Silvano Fumero; Via Ribes 5 Colleretto Giacosa, (TO) Italy
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38
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Chajra H, Auriol D, Joly F, Pagnon A, Rodrigues M, Allart S, Redziniak G, Lefevre F. Reactivating the extracellular matrix synthesis of sulfated glycosaminoglycans and proteoglycans to improve the human skin aspect and its mechanical properties. Clin Cosmet Investig Dermatol 2016; 9:461-472. [PMID: 27942228 PMCID: PMC5137933 DOI: 10.2147/ccid.s116548] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Background The aim of this study was to demonstrate that a defined cosmetic composition is able to induce an increase in the production of sulfated glycosaminoglycans (sGAGs) and/or proteoglycans and finally to demonstrate that the composition, through its combined action of enzyme production and synthesis of macromolecules, modulates organization and skin surface aspect with a benefit in antiaging applications. Materials and methods Gene expression was studied by quantitative reverse transcription polymerase chain reaction using normal human dermal fibroblasts isolated from a 45-year-old donor skin dermis. De novo synthesis of sGAGs and proteoglycans was determined using Blyscan™ assay and/or immunohistochemical techniques. These studies were performed on normal human dermal fibroblasts (41- and 62-year-old donors) and on human skin explants. Dermis organization was studied either ex vivo on skin explants using bi-photon microscopy and transmission electron microscopy or directly in vivo on human volunteers by ultrasound technique. Skin surface modification was investigated in vivo using silicone replicas coupled with macrophotography, and the mechanical properties of the skin were studied using Cutometer. Results It was first shown that mRNA expression of several genes involved in the synthesis pathway of sGAG was stimulated. An increase in the de novo synthesis of sGAGs was shown at the cellular level despite the age of cells, and this phenomenon was clearly related to the previously observed stimulation of mRNA expression of genes. An increase in the expression of the corresponding core protein of decorin, perlecan, and versican and a stimulation of their respective sGAGs, such as chondroitin sulfate and heparan sulfate, were found on skin explants. The biosynthesis of macromolecules seems to be correlated at the microscopic level to a better organization and quality of the dermis, with collagen fibrils having homogenous diameters. The dermis seems to be compacted as observed on images obtained by two-photon microscopy and ultrasound imaging. At the macroscopic level, this dermis organization shows a smoothed profile similar to a younger skin, with improved mechanical properties such as firmess. Conclusion The obtained results demonstrate that the defined cosmetic composition induces the synthesis of sGAGs and proteoglycans, which contributes to the overall dermal reorganization. This activity in the dermis in turn impacts the surface and mechanical properties of the skin.
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Affiliation(s)
- Hanane Chajra
- Libragen, Induchem (Givaudan Active Beauty), Toulouse
| | - Daniel Auriol
- Libragen, Induchem (Givaudan Active Beauty), Toulouse
| | | | | | | | - Sophie Allart
- Centre de Physiopathologie de Toulouse-Purpan, Toulouse
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39
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Sulfated glycosaminoglycans: their distinct roles in stem cell biology. Glycoconj J 2016; 34:725-735. [DOI: 10.1007/s10719-016-9732-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 09/15/2016] [Accepted: 09/20/2016] [Indexed: 01/27/2023]
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40
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Polyamines release the let-7b-mediated suppression of initiation codon recognition during the protein synthesis of EXT2. Sci Rep 2016; 6:33549. [PMID: 27650265 PMCID: PMC5030709 DOI: 10.1038/srep33549] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 08/30/2016] [Indexed: 12/26/2022] Open
Abstract
Proteoglycans (PGs), a family of glycosaminoglycan (GAG)-protein glycoconjugates, contribute to animal physiology through interactions between their glycan chains and growth factors, chemokines and adhesion molecules. However, it remains unclear how GAG structures are changed during the aging process. Here, we found that polyamine levels are correlated with the expression level of heparan sulfate (HS) in human skin. In cultured cell lines, the EXT1 and EXT2 enzymes, initiating HS biosynthesis, were stimulated at the translational level by polyamines. Interestingly, the initiation codon recognition by 43S preinitiation complex during EXT2 translation is suppressed by let-7b, a member of the let-7 microRNA family, through binding at the N-terminal amino acid coding sequence in EXT2 mRNA. Let-7b-mediated suppression of initiation codon depends on the length of 5'-UTR of EXT2 mRNA and its suppression is inhibited in the presence of polyamines. These findings provide new insights into the HS biosynthesis related to miRNA and polyamines.
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41
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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: 186] [Impact Index Per Article: 23.3] [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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42
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Mendoza F, Gómez H, Lluch JM, Masgrau L. α1,4-N-Acetylhexosaminyltransferase EXTL2: The Missing Link for Understanding Glycosidic Bond Biosynthesis with Retention of Configuration. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02945] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Fernanda Mendoza
- Institut
de Biotecnologia i de Biomedicina (IBB) and ‡Departament
de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - Hansel Gómez
- Institut
de Biotecnologia i de Biomedicina (IBB) and ‡Departament
de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - José M. Lluch
- Institut
de Biotecnologia i de Biomedicina (IBB) and ‡Departament
de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - Laura Masgrau
- Institut
de Biotecnologia i de Biomedicina (IBB) and ‡Departament
de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
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43
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Fernández-Vega I, García-Suárez O, García B, Crespo A, Astudillo A, Quirós LM. Heparan sulfate proteoglycans undergo differential expression alterations in right sided colorectal cancer, depending on their metastatic character. BMC Cancer 2015; 15:742. [PMID: 26482785 PMCID: PMC4617710 DOI: 10.1186/s12885-015-1724-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 10/08/2015] [Indexed: 12/22/2022] Open
Abstract
Background Heparan sulfate proteoglycans (HSPGs) are complex molecules involved in the growth, invasion and metastatic properties of cancerous cells. This study analyses the alterations in the expression patterns of these molecules in right sided colorectal cancer (CRC), both metastatic and non-metastatic. Methods Twenty right sided CRCs were studied. A transcriptomic approach was used, employing qPCR to analyze both the expression of the enzymes involved in heparan sulfate (HS) chains biosynthesis, as well as the proteoglycan core proteins. Since some of these proteoglycans can also carry chondroitin sulfate (CS) chains, we include the study of the genes involved in the biosynthesis of these glycosaminoglycans. Immunohistochemical techniques were also used to analyze tissue expression of particular genes showing significant expression differences, of potential interest. Results Changes in proteoglycan core proteins differ depending on their location; those located intracellularly or in the extracellular matrix show very similar alteration patterns, while those located on the cell surface vary greatly depending on the nature of the tumor: glypicans 1, 3, 6 and betaglycan are affected in the non-metastatic tumors, whereas in the metastatic, only glypican-1 and syndecan-1 are modified, the latter showing opposing alterations in levels of RNA and of protein, suggesting post-transcriptional regulation in these tumors. Furthermore, in non-metastatic tumors, polymerization of glycosaminoglycan chains is modified, particularly affecting the synthesis of the tetrasaccharide linker and the initiation and elongation of CS chains, HS chains being less affected. Regarding the enzymes responsible for the modificaton of the HS chains, alterations were only found in non-metastatic tumors, affecting N-sulfation and the isoforms HS6ST1, HS3ST3B and HS3ST5. In contrast, synthesis of the CS chains suggests changes in epimerization and sulfation of the C4 and C2 in both types of tumor. Conclusions Right sided CRCs show alterations in the expression of HSPGs, including the expression of the cell surface core proteins, many glycosiltransferases and some enzymes that modify the HS chains depending on the metastatic nature of the tumor, resulting more affected in non-metastatic ones. However, matrix proteoglycans and enzymes involved in CS fine structure synthesis are extensively modified independetly of the presence of lymph node metastasis. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1724-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Iván Fernández-Vega
- Servicio de Patología. Hospital Universitario de Araba, Álava, 01009, Spain.
| | - Olivia García-Suárez
- Department of Morphology and Cell Biology, University of Oviedo, 33006, Oviedo, Spain.
| | - Beatriz García
- University Institute of Oncology of Asturias, Oviedo, Spain. .,Department of Functional Biology, University of Oviedo, 33006, Oviedo, Spain.
| | - Ainara Crespo
- Department of Biotechnology, Neiker-Tecnalia Arkaute, 01080, Vitoria-Gasteiz, Spain.
| | - Aurora Astudillo
- University Institute of Oncology of Asturias, Oviedo, Spain. .,Department of Pathology, Hospital, Universitario Central de Asturias, 33006, Oviedo, Spain.
| | - Luis M Quirós
- University Institute of Oncology of Asturias, Oviedo, Spain. .,Department of Functional Biology, University of Oviedo, 33006, Oviedo, Spain.
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44
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Prydz K. Determinants of Glycosaminoglycan (GAG) Structure. Biomolecules 2015; 5:2003-22. [PMID: 26308067 PMCID: PMC4598785 DOI: 10.3390/biom5032003] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 08/17/2015] [Accepted: 08/18/2015] [Indexed: 01/05/2023] Open
Abstract
Proteoglycans (PGs) are glycosylated proteins of biological importance at cell surfaces, in the extracellular matrix, and in the circulation. PGs are produced and modified by glycosaminoglycan (GAG) chains in the secretory pathway of animal cells. The most common GAG attachment site is a serine residue followed by a glycine (-ser-gly-), from which a linker tetrasaccharide extends and may continue as a heparan sulfate, a heparin, a chondroitin sulfate, or a dermatan sulfate GAG chain. Which type of GAG chain becomes attached to the linker tetrasaccharide is influenced by the structure of the protein core, modifications occurring to the linker tetrasaccharide itself, and the biochemical environment of the Golgi apparatus, where GAG polymerization and modification by sulfation and epimerization take place. The same cell type may produce different GAG chains that vary, depending on the extent of epimerization and sulfation. However, it is not known to what extent these differences are caused by compartmental segregation of protein cores en route through the secretory pathway or by differential recruitment of modifying enzymes during synthesis of different PGs. The topic of this review is how different aspects of protein structure, cellular biochemistry, and compartmentalization may influence GAG synthesis.
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Affiliation(s)
- Kristian Prydz
- Department of Biosciences, University of Oslo, Box 1066, Blindern OSLO 0316, Norway.
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45
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Murakami K, Tanaka T, Bando Y, Yoshida S. Nerve injury induces the expression of syndecan-1 heparan sulfate proteoglycan in primary sensory neurons. Neuroscience 2015; 300:338-50. [PMID: 26002314 DOI: 10.1016/j.neuroscience.2015.05.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 04/26/2015] [Accepted: 05/13/2015] [Indexed: 12/18/2022]
Abstract
Heparan sulfate proteoglycans (HSPGs) have important functions in development of the central nervous system; however, their functions in nerve injury are not yet fully understood. We previously reported the expression of syndecan-1, a type of HSPG, in cranial motor neurons after nerve injury, suggesting the importance of syndecan-1 in the pathology of motor nerve injury. In this study, we examined the expression of syndecan-1, a type of HSPG, in primary sensory neurons after nerve injury in mice. Sciatic nerve axotomy strongly induced the expression of syndecan-1 in a subpopulation of injured dorsal root ganglion (DRG) neurons, which were small in size and had CGRP- or isolectin B4-positive fibers. Syndecan-1 was also distributed in the dorsal horn of the spinal cord ipsilateral to the axotomy, and located on the membrane of axons in lamina II of the dorsal horn. Not only sciatic nerve axotomy, infraorbital nerve axotomy also induced the expression of syndecan-1 in trigeminal ganglion neurons. Moreover, syndecan-1 knockdown in cultured DRG neurons induced a shorter neurite extension. These results suggest that syndecan-1 expression in injured primary sensory neurons may have functional roles in nerve regeneration and synaptic plasticity, resulting in the development of neuropathic pain.
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Affiliation(s)
- K Murakami
- Department of Functional Anatomy and Neuroscience, Asahikawa Medical University, Japan.
| | - T Tanaka
- Department of Functional Anatomy and Neuroscience, Asahikawa Medical University, Japan
| | - Y Bando
- Department of Functional Anatomy and Neuroscience, Asahikawa Medical University, Japan
| | - S Yoshida
- Department of Functional Anatomy and Neuroscience, Asahikawa Medical University, Japan
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46
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Sreelatha A, Kinch LN, Tagliabracci VS. The secretory pathway kinases. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2015; 1854:1687-93. [PMID: 25862977 DOI: 10.1016/j.bbapap.2015.03.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 03/31/2015] [Indexed: 12/16/2022]
Abstract
Protein phosphorylation is a nearly universal post-translation modification involved in a plethora of cellular events. Even though phosphorylation of extracellular proteins had been observed, the identity of the kinases that phosphorylate secreted proteins remained a mystery until only recently. Advances in genome sequencing and genetic studies have paved the way for the discovery of a new class of kinases that localize within the endoplasmic reticulum, Golgi apparatus and the extracellular space. These novel kinases phosphorylate proteins and proteoglycans in the secretory pathway and appear to regulate various extracellular processes. Mutations in these kinases cause human disease, thus underscoring the biological importance of phosphorylation within the secretory pathway. This article is part of a Special Issue entitled: Inhibitors of Protein Kinases.
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Affiliation(s)
- Anju Sreelatha
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Lisa N Kinch
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Vincent S Tagliabracci
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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47
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Katta K, Imran T, Busse-Wicher M, Grønning M, Czajkowski S, Kusche-Gullberg M. Reduced Expression of EXTL2, a Member of the Exostosin (EXT) Family of Glycosyltransferases, in Human Embryonic Kidney 293 Cells Results in Longer Heparan Sulfate Chains. J Biol Chem 2015; 290:13168-77. [PMID: 25829497 DOI: 10.1074/jbc.m114.631754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Indexed: 01/07/2023] Open
Abstract
Heparan sulfate proteoglycans are ubiquitously located on cell surfaces and in the extracellular matrices. The negatively charged heparan sulfate chains interact with a multitude of different proteins, thereby influencing a variety of cellular and developmental processes, for example cell adhesion, migration, tissue morphogenesis, and differentiation. The human exostosin (EXT) family of genes contains five members: the heparan sulfate polymerizing enzymes, EXT1 and EXT2, and three EXT-like genes, EXTL1, EXTL2, and EXTL3. EXTL2 has been ascribed activities related to the initiation and termination of heparan sulfate chains. Here we further investigated the role of EXTL2 in heparan sulfate chain elongation by gene silencing and overexpression strategies. We found that siRNA-mediated knockdown of EXTL2 in human embryonic kidney 293 cells resulted in increased chain length, whereas overexpression of EXTL2 in the same cell line had little or no effect on heparan sulfate chain length. To study in more detail the role of EXTL2 in heparan sulfate chain elongation, we tested the ability of the overexpressed protein to catalyze the in vitro incorporation of N-acetylglucosamine and N-acetylgalactosamine to oligosaccharide acceptors resembling unmodified heparan sulfate and chondroitin sulfate precursor molecules. Analysis of the generated products revealed that recombinant EXTL2 showed weak ability to transfer N-acetylgalactosamine to heparan sulfate precursor molecules but also, that EXTL2 exhibited much stronger in vitro N-acetylglucosamine-transferase activity related to elongation of heparan sulfate chains.
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Affiliation(s)
- Kirankumar Katta
- From the Department of Biomedicine, University of Bergen, N-5009 Bergen, Norway and
| | - Tabasum Imran
- From the Department of Biomedicine, University of Bergen, N-5009 Bergen, Norway and
| | - Marta Busse-Wicher
- the Department of Biochemistry, University of Cambridge, Cambridge CB2 1GA, United Kingdom
| | - Mona Grønning
- From the Department of Biomedicine, University of Bergen, N-5009 Bergen, Norway and
| | - Szymon Czajkowski
- From the Department of Biomedicine, University of Bergen, N-5009 Bergen, Norway and
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48
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Spahr C, Shi SDH, Lu HS. O-glycosylation of glycine-serine linkers in recombinant Fc-fusion proteins: attachment of glycosaminoglycans and other intermediates with phosphorylation at the xylose sugar subunit. MAbs 2015; 6:904-14. [PMID: 24927272 DOI: 10.4161/mabs.28763] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
A xylose-based glycosaminoglycan (GAG) core was recently identified at a Ser residue in the linker sequence of a recombinant Fc fusion protein. The linker sequence, G-S-G-G-G-G, and an upstream acidic residue were serving as a substrate for O-xylosyltransferase, resulting in a major glycan composed of Xyl-Gal-Gal-GlcA and other minor intermediates. In this paper, a portion of an unrelated protein was fused to the C-terminus of an IgG Fc domain using the common (G4S) 4 linker repeat. This linker resulted in a heterogenous population of xylose-based glycans all containing at least a core Xyl. Commonly observed glycan structures include GAG-related di-, tri-, tetra-, and penta-saccharides (e.g., Xyl-Gal, Xyl-Gal-Gal, Xyl-Gal-Gal-GlcA, and Xyl-Gal-Gal-GlcA-HexNAc), as well as Xyl-Gal-Neu5Ac. Following alkaline phosphatase or sialidase treatment combined with CID fragmentation, low-level glycans with a mass addition of 79.9 Da were confirmed to be a result of phosphorylated xylose. A minute quantity of phosphorylated GAG pentasaccharides may also be sulfated (also 79.9 Da), possibly at the HexNAc moiety due to non-reactivity to alkaline phosphatase. The xylose moiety may be randomly incorporated in one of the three G-S-G sequence motifs; and the linker peptide shows evidence for multiple additions of xylose at very low levels.
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Affiliation(s)
- Chris Spahr
- Biologics Optimization; Therapeutic Discovery; Amgen Inc.; Thousand Oaks, CA USA
| | - Stone D-H Shi
- Biologics Optimization; Therapeutic Discovery; Amgen Inc.; Thousand Oaks, CA USA
| | - Hsieng S Lu
- Biologics Optimization; Therapeutic Discovery; Amgen Inc.; Thousand Oaks, CA USA
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49
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Izumikawa T, Sato B, Mikami T, Tamura JI, Igarashi M, Kitagawa H. GlcUAβ1-3Galβ1-3Galβ1-4Xyl(2-O-phosphate) is the preferred substrate for chondroitin N-acetylgalactosaminyltransferase-1. J Biol Chem 2015; 290:5438-48. [PMID: 25568321 DOI: 10.1074/jbc.m114.603266] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A deficiency in chondroitin N-acetylgalactosaminyltransferase-1 (ChGn-1) was previously shown to reduce the number of chondroitin sulfate (CS) chains, leading to skeletal dysplasias in mice, suggesting that ChGn-1 regulates the number of CS chains for normal cartilage development. Recently, we demonstrated that 2-phosphoxylose phosphatase (XYLP) regulates the number of CS chains by dephosphorylating the Xyl residue in the glycosaminoglycan-protein linkage region of proteoglycans. However, the relationship between ChGn-1 and XYLP in controlling the number of CS chains is not clear. In this study, we for the first time detected a phosphorylated tetrasaccharide linkage structure, GlcUAβ1-3Galβ1-3Galβ1-4Xyl(2-O-phosphate), in ChGn-1(-/-) growth plate cartilage but not in ChGn-2(-/-) or wild-type growth plate cartilage. In contrast, the truncated linkage tetrasaccharide GlcUAβ1-3Galβ1-3Galβ1-4Xyl was detected in wild-type, ChGn-1(-/-), and ChGn-2(-/-) growth plate cartilage. Consistent with the findings, ChGn-1 preferentially transferred N-acetylgalactosamine to the phosphorylated tetrasaccharide linkage in vitro. Moreover, ChGn-1 and XYLP interacted with each other, and ChGn-1-mediated addition of N-acetylgalactosamine was accompanied by rapid XYLP-dependent dephosphorylation during formation of the CS linkage region. Taken together, we conclude that the phosphorylated tetrasaccharide linkage is the preferred substrate for ChGn-1 and that ChGn-1 and XYLP cooperatively regulate the number of CS chains in growth plate cartilage.
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Affiliation(s)
- Tomomi Izumikawa
- From the Department of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe 658-8558, Japan
| | - Ban Sato
- From the Department of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe 658-8558, Japan
| | - Tadahisa Mikami
- From the Department of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe 658-8558, Japan
| | - Jun-ichi Tamura
- the Department of Regional Environment, Tottori University, Tottori 680-8551, Japan, and
| | - Michihiro Igarashi
- the Department of Neurochemistry and Molecular Cell Biology, Graduate School of Medical and Dental Sciences and Trans-disciplinary Program, Niigata University, 1-757 Asahi-machi, Chuo-ku, Niigata 951-8510, Japan
| | - Hiroshi Kitagawa
- From the Department of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe 658-8558, Japan,
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50
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Bernelot Moens SJ, Mooij HL, Hassing H.C, Kruit JK, Witjes JJ, van de Sande MAJ, Nederveen AJ, Xu D, Dallinga-Thie GM, Esko JD, Stroes ESG, Nieuwdorp M. Carriers of loss-of-function mutations in EXT display impaired pancreatic beta-cell reserve due to smaller pancreas volume. PLoS One 2014; 9:e115662. [PMID: 25541963 PMCID: PMC4277348 DOI: 10.1371/journal.pone.0115662] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 11/13/2014] [Indexed: 12/31/2022] Open
Abstract
Exotosin (EXT) proteins are involved in the chain elongation step of heparan sulfate (HS) biosynthesis, which is intricately involved in organ development. Loss of function mutations (LOF) in EXT1 and EXT2 result in hereditary exostoses (HME). Interestingly, HS plays a role in pancreas development and beta-cell function, and genetic variations in EXT2 are associated with an increased risk for type 2 diabetes mellitus. We hypothesized that loss of function of EXT1 or EXT2 in subjects with hereditary multiple exostoses (HME) affects pancreatic insulin secretion capacity and development. We performed an oral glucose tolerance test (OGTT) followed by hyperglycemic clamps to investigate first-phase glucose-stimulated insulin secretion (GSIS) in HME patients and age and gender matched non-affected relatives. Pancreas volume was assessed with magnetic resonance imaging (MRI). OGTT did not reveal significant differences in glucose disposal, but there was a markedly lower GSIS in HME subjects during hyperglycemic clamp (iAUC HME: 0.72 [0.46–1.16] vs. controls 1.53 [0.69–3.36] nmol·l−1·min−1, p<0.05). Maximal insulin response following arginine challenge was also significantly attenuated (iAUC HME: 7.14 [4.22–10.5] vs. controls 10.2 [7.91–12.70] nmol·l−1·min−1 p<0.05), indicative of an impaired beta-cell reserve. MRI revealed a significantly smaller pancreatic volume in HME subjects (HME: 72.0±15.8 vs. controls 96.5±26.0 cm3 p = 0.04). In conclusion, loss of function of EXT proteins may affect beta-cell mass and insulin secretion capacity in humans, and render subjects at a higher risk of developing type 2 diabetes when exposed to environmental risk factors.
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Affiliation(s)
| | - Hans L. Mooij
- Department of Vascular Medicine, Academic Medical Center, Amsterdam, the Netherlands
| | - H . Carlijne Hassing
- Department of Vascular Medicine, Academic Medical Center, Amsterdam, the Netherlands
| | - Janine K. Kruit
- Department of Paediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Julia J. Witjes
- Department of Vascular Medicine, Academic Medical Center, Amsterdam, the Netherlands
| | | | - Aart J. Nederveen
- Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands
| | - Ding Xu
- Department of Cellular and Molecular Medicine, UC San Diego, San Diego, California, United States of America
| | - Geesje M. Dallinga-Thie
- Department of Vascular Medicine, Academic Medical Center, Amsterdam, the Netherlands
- Department of Experimental Vascular Medicine, Academic Medical Center, Amsterdam, the Netherlands
| | - Jeffrey D. Esko
- Department of Cellular and Molecular Medicine, UC San Diego, San Diego, California, United States of America
| | - Erik S. G. Stroes
- Department of Vascular Medicine, Academic Medical Center, Amsterdam, the Netherlands
| | - Max Nieuwdorp
- Department of Vascular Medicine, Academic Medical Center, Amsterdam, the Netherlands
- Department of Cellular and Molecular Medicine, UC San Diego, San Diego, California, United States of America
- Department of Experimental Vascular Medicine, Academic Medical Center, Amsterdam, the Netherlands
- * E-mail:
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