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Osumi R, Sugihara K, Yoshimoto M, Tokumura K, Tanaka Y, Hinoi E. Role of proteoglycan synthesis genes in osteosarcoma stem cells. Front Oncol 2024; 14:1325794. [PMID: 38690160 PMCID: PMC11058990 DOI: 10.3389/fonc.2024.1325794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 04/03/2024] [Indexed: 05/02/2024] Open
Abstract
Osteosarcoma stem cells (OSCs) contribute to the pathogenesis of osteosarcoma (OS), which is the most common malignant primary bone tumor. The significance and underlying mechanisms of action of proteoglycans (PGs) and glycosaminoglycans (GAGs) in OSC phenotypes and OS malignancy are largely unknown. This study aimed to investigate the role of PG/GAG biosynthesis and the corresponding candidate genes in OSCs and poor clinical outcomes in OS using scRNA-seq and bulk RNA-seq datasets of clinical OS specimens, accompanied by biological validation by in vitro genetic and pharmacological analyses. The expression of β-1,3-glucuronyltransferase 3 (B3GAT3), one of the genes responsible for the biosynthesis of the common core tetrasaccharide linker region of PGs, was significantly upregulated in both OSC populations and OS tissues and was associated with poor survival in patients with OS with high stem cell properties. Moreover, the genetic inactivation of B3GAT3 by RNA interference and pharmacological inhibition of PG biosynthesis abrogated the self-renewal potential of OSCs. Collectively, these findings suggest a pivotal role for B3GAT3 and PG/GAG biosynthesis in the regulation of OSC phenotypes and OS malignancy, thereby providing a potential target for OSC-directed therapy.
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Affiliation(s)
- Ryoma Osumi
- Department of Bioactive Molecules, Pharmacology, Gifu Pharmaceutical University, Gifu, Japan
| | - Kengo Sugihara
- Department of Bioactive Molecules, Pharmacology, Gifu Pharmaceutical University, Gifu, Japan
| | - Makoto Yoshimoto
- Department of Bioactive Molecules, Pharmacology, Gifu Pharmaceutical University, Gifu, Japan
| | - Kazuya Tokumura
- Department of Bioactive Molecules, Pharmacology, Gifu Pharmaceutical University, Gifu, Japan
| | - Yuki Tanaka
- Department of Bioactive Molecules, Pharmacology, Gifu Pharmaceutical University, Gifu, Japan
| | - Eiichi Hinoi
- Department of Bioactive Molecules, Pharmacology, Gifu Pharmaceutical University, Gifu, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, Japan
- Center for One Medicine Innovative Translational Research, Division of Innovative Modality Development, Gifu University, Gifu, Japan
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2
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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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3
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Buyukyilmaz G, Adiguzel KT, Kılıc E. Bisphosphonate treatment at spondylo-ocular syndrome due to a novel compound heterozygote variant in XYLT2 and review of the literature. Am J Med Genet A 2023; 191:1581-1585. [PMID: 36815763 DOI: 10.1002/ajmg.a.63163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 01/16/2023] [Accepted: 02/10/2023] [Indexed: 02/24/2023]
Abstract
Spondylo-ocular syndrome is a rare autosomal recessive disorder characterized by generalized osteoporosis, hearing loss, visual impairment due to cataract, and platyspondyly. Previous studies have revealed that the syndrome is caused by pathogenic variants in the XYLT2 gene. A patient with spondylo-ocular syndrome and two heterozygous pathogenic variant in the XYLT2 gene in compound state are described here. The patient presented with osteoporosis, platyspondyly, ocular findings, hearing loss, kyphosis, scoliosis, facial findings, intellectual disability, and undescended testicles. Previous reports of bisphosphonate treatment response were variable, whereas a long-term follow-up with bisphosphonate treatment in this case resulted in normalization of vertebral structures. Reporting such cases helps to determine the appropriate genotype-phenotype correlation in patients with XYLT2-related pathogenesis.
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Affiliation(s)
- Gonul Buyukyilmaz
- Department of Pediatric Endocrinology, Ankara City Hospital, Ankara, Turkey
| | | | - Esra Kılıc
- Department of Pediatric Genetics, University of Health Sciences, Ankara City Hospital, Ankara, Turkey
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Chemistry and Function of Glycosaminoglycans in the Nervous System. ADVANCES IN NEUROBIOLOGY 2023; 29:117-162. [DOI: 10.1007/978-3-031-12390-0_5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Ye ZH, Zhong R. Outstanding questions on xylan biosynthesis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 325:111476. [PMID: 36174800 DOI: 10.1016/j.plantsci.2022.111476] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/25/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Xylan is the second most abundant polysaccharide in plant biomass. It is a crucial component of cell wall structure as well as a significant factor contributing to biomass recalcitrance. Xylan consists of a linear chain of β-1,4-linked xylosyl residues that are often substituted with glycosyl side chains, such as glucuronosyl/methylglucuronosyl and arabinofuranosyl residues, and acetylated at O-2 and/or O-3. Xylan from gymnosperms and dicots contains a unique reducing end tetrasaccharide sequence that is not detected in xylan from grasses, bryophytes and seedless vascular plants. Grass xylan is heavily decorated at O-3 with arabinofuranosyl residues that are frequently esterified with hydroxycinnamates. Genetic and biochemical studies have uncovered a number of genes involved in xylan backbone elongation and acetylation, xylan glycosyl substitutions and their modifications, and the synthesis of the unique xylan reducing end tetrasaccharide sequence, but some outstanding issues on the biosynthesis of xylan still remain unanswered. Here, we provide a brief overview of xylan structure and focus on discussion of the current understanding and open questions on xylan biosynthesis. Further elucidation of the biochemical mechanisms underlying xylan biosynthesis will not only shed new insights into cell wall biology but also provide molecular tools for genetic modification of biomass composition tailored for diverse end uses.
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Affiliation(s)
- Zheng-Hua Ye
- Department of Plant Biology, University of Georgia, Athens, GA 30602, USA
| | - Ruiqin Zhong
- Department of Plant Biology, University of Georgia, Athens, GA 30602, USA
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Mustafa S, Hussain MF, Latif M, Ijaz M, Asif M, Hassan M, Faisal M, Iqbal F. A Missense Mutation (c.1037 G > C, p. R346P) in PAPSS2 Gene Results in Autosomal Recessive form of Brachyolmia Type 1 (Hobaek Form) in A Consanguineous Family. Genes (Basel) 2022; 13:2096. [PMID: 36421772 PMCID: PMC9690184 DOI: 10.3390/genes13112096] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/03/2022] [Accepted: 11/08/2022] [Indexed: 08/20/2024] Open
Abstract
BACKGROUND Brachyolmia is a skeletal disorder with an autosomal mode of inheritance (both dominant and recessive) in which the patients have a short height, scoliosis and a reduced trunk size. METHODS From the Muzaffargarh District in Pakistan, a consanguineous family with multiple Brachyolmia-affected subjects were enrolled in the present study. Basic epidemiological data and radiographs were collected for the subjects. Whole exome sequencing (WES) which was followed by Sanger sequencing was applied to report the geneticbasic of Brachyolmia. RESULTS The WES identified a missense mutation (c.1037 G > C, p. R346P) in exon 9 of the PAPSS2 gene that was confirmed by the Sanger sequencing in the enrolled subjects. The mutation followed a Mendalian pattern with an autosomal recessive inheritance mode. Multiple sequence alignment by Clustal Omega indicated that the PAPSS2 mutation-containing domain is highly conserved. The HEK293T whole-cell extract that was transfected with the Myc-tagged PCMV6-PAPSS2 of both the wild and mutant constructs were resolved by SDS-PAGE as well as by a Western blot, which confirmed that there are different PAPSS2 protein expression patterns when they were compared between the control and Brachyolmia patients. This difference between the normal and mutated protein was not evident when the three-dimensional computational structures were generated using homology modeling. CONCLUSION We report a missense mutation (c.1037 G > C, p. R346P) in the PAPSS2 gene that caused Brachyolmia in a consanguineous Pakistani family.
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Affiliation(s)
- Saima Mustafa
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Malik Fiaz Hussain
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Muhammad Latif
- Department of Zoology, Division of Science and Technology, University of Education, Lahore 54770, Pakistan
| | - Maryam Ijaz
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Muhammad Asif
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Mubashir Hassan
- The Steve and Cindy Rasmussen Institute for Genomic Medicine, Nationwide Children’s Hospital, Columbus, OH 43205, USA
| | - Muhammad Faisal
- Faculty of Health Studies, University of Bradford, Bradford BD7 1DP, UK
| | - Furhan Iqbal
- Institute of Pure and Applied Biology, Zoology Division, Bahauddin Zakariya University, Multan 60800, Pakistan
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7
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Ramarajan MG, Saraswat M, Budhraja R, Garapati K, Raymond K, Pandey A. Mass spectrometric analysis of chondroitin sulfate-linked peptides. JOURNAL OF PROTEINS AND PROTEOMICS 2022; 13:187-203. [PMID: 36213313 PMCID: PMC9526814 DOI: 10.1007/s42485-022-00092-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 06/08/2022] [Accepted: 06/14/2022] [Indexed: 11/26/2022]
Abstract
Chondroitin sulfate proteoglycans (CSPGs) are extracellular matrix components composed of linear glycosaminoglycan (GAG) side chains attached to a core protein. CSPGs play a vital role in neurodevelopment, signal transduction, cellular proliferation and differentiation and tumor metastasis through interaction with growth factors and signaling proteins. These pleiotropic functions of proteoglycans are regulated spatiotemporally by the GAG chains attached to the core protein. There are over 70 chondroitin sulfate-linked proteoglycans reported in cells, cerebrospinal fluid and urine. A core glycan linker of 3-6 monosaccharides attached to specific serine residues can be extended by 20-200 disaccharide repeating units making intact CSPGs very large and impractical to analyze. The current paradigm of CSPG analysis involves digesting the GAG chains by chondroitinase enzymes and analyzing either the protein part, the disaccharide repeats, or both by mass spectrometry. This method, however, provides no information about the site of attachment or the composition of linker oligosaccharides and the degree of sulfation and/or phosphorylation. Further, the analysis by mass spectrometry and subsequent identification of novel CSPGs is hampered by technical challenges in their isolation, less optimal ionization and data analysis. Unknown identity of the linker oligosaccharide also makes it more difficult to identify the glycan composition using database searching approaches. Following chondroitinase digestion of long GAG chains linked to tryptic peptides, we identified intact GAG-linked peptides in clinically relevant samples including plasma, urine and dermal fibroblasts. These intact glycopeptides including their core linker glycans were identified by mass spectrometry using optimized stepped higher energy collision dissociation and electron-transfer/higher energy collision dissociation combined with hybrid database search/de novo glycan composition search. We identified 25 CSPGs including three novel CSPGs that have not been described earlier. Our findings demonstrate the utility of combining enrichment strategies and optimized high-resolution mass spectrometry analysis including alternative fragmentation methods for the characterization of CSPGs. Supplementary Information The online version contains supplementary material available at 10.1007/s42485-022-00092-3.
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Affiliation(s)
- Madan Gopal Ramarajan
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First ST SW, Rochester, MN 55905 USA
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066 India
- Manipal Academy of Higher Education (MAHE), Manipal, 576104 Karnataka India
- Center for Molecular Medicine, National Institute of Mental Health and Neurosciences (NIMHANS), Hosur Road, Bangalore, 560 029 India
| | - Mayank Saraswat
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First ST SW, Rochester, MN 55905 USA
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066 India
- Manipal Academy of Higher Education (MAHE), Manipal, 576104 Karnataka India
| | - Rohit Budhraja
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First ST SW, Rochester, MN 55905 USA
| | - Kishore Garapati
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First ST SW, Rochester, MN 55905 USA
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066 India
- Manipal Academy of Higher Education (MAHE), Manipal, 576104 Karnataka India
- Center for Molecular Medicine, National Institute of Mental Health and Neurosciences (NIMHANS), Hosur Road, Bangalore, 560 029 India
| | - Kimiyo Raymond
- Biochemical Genetics Laboratory, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905 USA
| | - Akhilesh Pandey
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First ST SW, Rochester, MN 55905 USA
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905 USA
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Noborn F, Nilsson J, Larson G. Site-specific glycosylation of proteoglycans: a revisited frontier in proteoglycan research. Matrix Biol 2022; 111:289-306. [PMID: 35840015 DOI: 10.1016/j.matbio.2022.07.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 06/11/2022] [Accepted: 07/11/2022] [Indexed: 11/29/2022]
Abstract
Proteoglycans (PGs), a class of carbohydrate-modified proteins, are present in essentially all metazoan organisms investigated to date. PGs are composed of glycosaminoglycan (GAG) chains attached to various core proteins and are important for embryogenesis and normal homeostasis. PGs exert many of their functions via their GAG chains and understanding the details of GAG-ligand interactions has been an essential part of PG research. Although PGs are also involved in many diseases, the number of GAG-related drugs used in the clinic is yet very limited, indicating a lack of detailed structure-function understanding. Structural analysis of PGs has traditionally been obtained by first separating the GAG chains from the core proteins, after which the two components are analyzed separately. While this strategy greatly facilitates the analysis, it precludes site-specific information and introduces either a "GAG" or a "core protein" perspective on the data interpretation. Mass-spectrometric (MS) glycoproteomic approaches have recently been introduced, providing site-specific information on PGs. Such methods have revealed a previously unknown structural complexity of the GAG linkage regions and resulted in identification of several novel CSPGs and HSPGs in humans and in model organisms, thereby expanding our view on PG complexity. In light of these findings, we discuss here if the use of such MS-based techniques, in combination with various functional assays, can also be used to expand our functional understanding of PGs. We have also summarized the site-specific information of all human PGs known to date, providing a theoretical framework for future studies on site-specific functional analysis of PGs in human pathophysiology.
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Affiliation(s)
- Fredrik Noborn
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden; Department of Laboratory Medicine, Sundsvall County Hospital, Sweden.
| | - Jonas Nilsson
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden; Proteomics Core Facility, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Göran Larson
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
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9
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Tao C, Makrides N, Chuang JZ, Wu Y, Brooks SE, Esko JD, Sung CH, Zhang X. Chondroitin sulfate enhances the barrier function of basement membrane assembled by heparan sulfate. Development 2022; 149:275504. [PMID: 35608020 PMCID: PMC9270973 DOI: 10.1242/dev.200569] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/05/2022] [Indexed: 01/08/2023]
Abstract
Glycosaminoglycans are ubiquitously expressed polysaccharides that are attached to proteoglycans. Here, we showed that ablation of the heparan sulfate (HS) polymerase Ext1 in retinal progenitor cells did not affect initial progression of retinal angiogenesis, but it disrupted the pruning of blood vessels and establishment of arterioles and venules. In the absence of retinal HS, blood vessels were also vulnerable to high oxygen tension in early postnatal stages, which could be rescued by exogenous vascular endothelial growth factor (VEGF), consistent with the role of retinal HS in the fine-tuning of VEGF signaling. Furthermore, we observed that the retinal inner limiting membrane (ILM) was disrupted by deletion of Ext1 in a timing-specific manner, suggesting that retinal HS is required for the assembly but not the maintenance of the basement membrane. Lastly, we showed that further deletion of C4st1, a chondroitin sulfate (CS) sulfation enzyme, did not affect the assembly of the ILM but, when combined with Ext1 deletion, it aggravated the retinal permeability by disrupting the retinal glycocalyx. These results demonstrate an important role of CS and HS in establishing the barrier function of the extracellular matrix.
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Affiliation(s)
- Chenqi Tao
- Department of Ophthalmology, Columbia University, New York, NY 10032, USA
| | - Neoklis Makrides
- Department of Ophthalmology, Columbia University, New York, NY 10032, USA
| | - Jen-Zen Chuang
- Department of Ophthalmology, Dyson Vision Research Institute, Weill Cornell Medicine, New York, NY 10065, USA
| | - Yihua Wu
- Department of Ophthalmology, Columbia University, New York, NY 10032, USA
| | - Steven E Brooks
- Department of Ophthalmology, Columbia University, New York, NY 10032, USA
| | - Jeffrey D Esko
- Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Ching-Hwa Sung
- Department of Ophthalmology, Dyson Vision Research Institute, Weill Cornell Medicine, New York, NY 10065, USA
| | - Xin Zhang
- Department of Ophthalmology, Columbia University, New York, NY 10032, USA.,Department of Pathology and Cell Biology, Columbia University, New York, NY 10032, USA
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Hellicar J, Stevenson NL, Stephens DJ, Lowe M. Supply chain logistics - the role of the Golgi complex in extracellular matrix production and maintenance. J Cell Sci 2022; 135:273996. [PMID: 35023559 PMCID: PMC8767278 DOI: 10.1242/jcs.258879] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The biomechanical and biochemical properties of connective tissues are determined by the composition and quality of their extracellular matrix. This, in turn, is highly dependent on the function and organisation of the secretory pathway. The Golgi complex plays a vital role in directing matrix output by co-ordinating the post-translational modification and proteolytic processing of matrix components prior to their secretion. These modifications have broad impacts on the secretion and subsequent assembly of matrix components, as well as their function in the extracellular environment. In this Review, we highlight the role of the Golgi in the formation of an adaptable, healthy matrix, with a focus on proteoglycan and procollagen secretion as example cargoes. We then discuss the impact of Golgi dysfunction on connective tissue in the context of human disease and ageing.
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Affiliation(s)
- John Hellicar
- School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, The Michael Smith Building, Oxford Road, Manchester, M13 9PT, UK.,Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673
| | - Nicola L Stevenson
- Cell Biology Laboratories, School of Biochemistry, Faculty of Life Sciences, University Walk, University of Bristol, Bristol, BS8 1TD, UK
| | - David J Stephens
- Cell Biology Laboratories, School of Biochemistry, Faculty of Life Sciences, University Walk, University of Bristol, Bristol, BS8 1TD, UK
| | - Martin Lowe
- School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, The Michael Smith Building, Oxford Road, Manchester, M13 9PT, UK
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Mizumoto S, Yamada S. An Overview of in vivo Functions of Chondroitin Sulfate and Dermatan Sulfate Revealed by Their Deficient Mice. Front Cell Dev Biol 2021; 9:764781. [PMID: 34901009 PMCID: PMC8652114 DOI: 10.3389/fcell.2021.764781] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/09/2021] [Indexed: 12/20/2022] Open
Abstract
Chondroitin sulfate (CS), dermatan sulfate (DS) and heparan sulfate (HS) are covalently attached to specific core proteins to form proteoglycans in their biosynthetic pathways. They are constructed through the stepwise addition of respective monosaccharides by various glycosyltransferases and maturated by epimerases as well as sulfotransferases. Structural diversities of CS/DS and HS are essential for their various biological activities including cell signaling, cell proliferation, tissue morphogenesis, and interactions with a variety of growth factors as well as cytokines. Studies using mice deficient in enzymes responsible for the biosynthesis of the CS/DS and HS chains of proteoglycans have demonstrated their essential functions. Chondroitin synthase 1-deficient mice are viable, but exhibit chondrodysplasia, progression of the bifurcation of digits, delayed endochondral ossification, and reduced bone density. DS-epimerase 1-deficient mice show thicker collagen fibrils in the dermis and hypodermis, and spina bifida. These observations suggest that CS/DS are essential for skeletal development as well as the assembly of collagen fibrils in the skin, and that their respective knockout mice can be utilized as models for human genetic disorders with mutations in chondroitin synthase 1 and DS-epimerase 1. This review provides a comprehensive overview of mice deficient in CS/DS biosyntheses.
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Affiliation(s)
- Shuji Mizumoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Shuhei Yamada
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Japan
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12
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Mizumoto S, Yamada S. Congenital Disorders of Deficiency in Glycosaminoglycan Biosynthesis. Front Genet 2021; 12:717535. [PMID: 34539746 PMCID: PMC8446454 DOI: 10.3389/fgene.2021.717535] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 08/12/2021] [Indexed: 12/04/2022] Open
Abstract
Glycosaminoglycans (GAGs) including chondroitin sulfate, dermatan sulfate, and heparan sulfate are covalently attached to specific core proteins to form proteoglycans, which are distributed at the cell surface as well as in the extracellular matrix. Proteoglycans and GAGs have been demonstrated to exhibit a variety of physiological functions such as construction of the extracellular matrix, tissue development, and cell signaling through interactions with extracellular matrix components, morphogens, cytokines, and growth factors. Not only connective tissue disorders including skeletal dysplasia, chondrodysplasia, multiple exostoses, and Ehlers-Danlos syndrome, but also heart and kidney defects, immune deficiencies, and neurological abnormalities have been shown to be caused by defects in GAGs as well as core proteins of proteoglycans. These findings indicate that GAGs and proteoglycans are essential for human development in major organs. The glycobiological aspects of congenital disorders caused by defects in GAG-biosynthetic enzymes including specific glysocyltransferases, epimerases, and sulfotransferases, in addition to core proteins of proteoglycans will be comprehensively discussed based on the literature to date.
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Affiliation(s)
- Shuji Mizumoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Shuhei Yamada
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Japan
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Bolund ACS, Langdahl B, Laurberg TB, Hellfritzsch MB, Gjørup H, Møller-Madsen B, Nielsen TØ, Farholt S, Gregersen PA. B3GAT3-related linkeropathy and an in-frame homozygous deletion in an adult patient. Eur J Med Genet 2021; 64:104342. [PMID: 34537402 DOI: 10.1016/j.ejmg.2021.104342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/30/2021] [Accepted: 09/11/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Proteoglycans (PGs) are complex macromolecules consisting of a core protein and glycosaminoglycan (GAG) side chains. PGs are important for the constitution and functioning of the connective tissue. The normal composition of the GAG side chains defines the nature of the PGs and a wide range of biological events. Deficiencies of specific enzymes involved in the linkage of GAGs to the core protein to form functional PGs, lead to a heterogeneous disease group called Linkeropathies. This is a group of multisystem conditions characterized by different phenotypes that include skeletal dysplasia and various extra-skeletal features: developmental delay/intellectual disability, ophthalmological abnormalities including blue sclerae, facial characteristics, cardiac defects, abdominal wall defects (hernias), cutis laxa, hypermobility and hypotonia. The conditions show variable severity and often overlapping phenotypes. The enzyme β-1,3-glucuronyltransferase 3, encoded by B3GAT3, is involved in the linkage process to form functional PGs. Biallelic pathogenic variants in B3GAT3 hence lead to Linkeropathy due to loss of function or decreased activity of this enzyme. PATIENT PRESENTATION We describe a 22-year-old female patient, born of consanguineous parents. The disease history includes congenital severe joint malalignment of elbows, hips, knees and feet, hypermobility, severe kyphoscoliosis, osteoporosis with multiple fractures in childhood, congenital diaphragmatic hernia, minor dental anomalies, digital malformations, and characteristic facial features. Whole exome sequencing was performed, and homozygosity for a novel in-frame deletion in B3GAT3, (c.61_63delCTC (p.(Leu21del))) was detected. Both unaffected parents (double second cousins) were shown to be heterozygous carriers. CONCLUSION This is the first report to describe homozygosity for this specific in-frame deletion in B3GAT3 (p.(Leu21del)). We present a young adult phenotype and a summary of previous reported patients with other biallelic B3GAT3-variants for comparison. Previously described patients of B3GAT3-deficiency were, however, all children with phenotypes ranging from prenatal manifestation and early lethality to less severe. We suggest that this novel homozygous in-frame deletion in B3GAT3 may be the cause of a recessive form of Linkeropathy.
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Affiliation(s)
- Anneli C S Bolund
- Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark.
| | - Bente Langdahl
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Trine B Laurberg
- Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Hans Gjørup
- Center for Oral Health in Rare Diseases, Department of Oral and Maxillofacial Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Bjarne Møller-Madsen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Orthopedic Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Trine Ø Nielsen
- Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark
| | - Stense Farholt
- Centre for Rare Diseases, Department of Pediatric and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark; Centre for Rare Diseases, Department of Pediatric and Adolescent Medicine, Rigshospitalet, Copenhagen, Denmark
| | - Pernille A Gregersen
- Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark; Centre for Rare Diseases, Department of Pediatric and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark
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14
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Cai D, Bian Y, Wu S, Ding K. Conformation-Controlled Hydrogen-Bond-Mediated Aglycone Delivery Method for α-Xylosylation. J Org Chem 2021; 86:9945-9960. [PMID: 34292734 DOI: 10.1021/acs.joc.1c00187] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
α-Xylosylated glycans and xylosyl derivatives are biomedically important molecules which show numerous bioactivities against infection, cancer, inflammation, and so on. Lacking an efficient α-xylosylation method, the synthesis of α-xyloside-containing molecules was full of challenges. Herein, a robust method is presented for selective α-xylosylation via combination of a rare conformation-controlled strategy and the hydrogen-bond-mediated aglycone delivery method. Various native branched α-xyloside structures necessitate an orthogonally protected xyloside, and a three-pot preparation method of the xylosyl donor was developed for this novel α-xylosylation method, which was further applied in the first synthesis of the side chain N of xyloglucan. This work provides an efficient α-xylosylation method which would make various α-xyloside structures achievable. The conformation-controlled strategy also has important reference to the chemistry of five-carbon pyranose.
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Affiliation(s)
- Deqin Cai
- University of Chinese Academy of Sciences, Beijing 100049, China.,Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Ya Bian
- Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,Interdisciplinary Science Research Institute, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Shengjie Wu
- University of Chinese Academy of Sciences, Beijing 100049, China.,Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Kan Ding
- University of Chinese Academy of Sciences, Beijing 100049, China.,Glycochemistry and Glycobiology Lab, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
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15
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Kai Y, Yoneyama H, Yoshikawa M, Kimura H, Muro S. Chondroitin sulfate in tissue remodeling: Therapeutic implications for pulmonary fibrosis. Respir Investig 2021; 59:576-588. [PMID: 34176780 DOI: 10.1016/j.resinv.2021.05.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 05/14/2021] [Accepted: 05/21/2021] [Indexed: 10/21/2022]
Abstract
Fibrosis is characterized by the deposition of extracellular matrix (ECM) proteins, while idiopathic pulmonary fibrosis (IPF) is a chronic respiratory disease characterized by dysregulated tissue repair and remodeling. Anti-inflammatory drugs, such as corticosteroids and immunosuppressants, and antifibrotic drugs, like pirfenidone and nintedanib, are used in IPF therapy. However, their limited effects suggest that single mediators are inadequate to control IPF. Therefore, therapies targeting the multifactorial cascades that regulate tissue remodeling in fibrosis could provide alternate solutions. ECM molecules have been shown to modulate various biological functions beyond tissue structure support and thus, could be developed into novel therapeutic targets for modulating tissue remodeling. Among ECM molecules, glycosaminoglycans (GAG) are linear polysaccharides consisting of repeated disaccharides, which regulate cell-matrix interactions. Chondroitin sulfate (CS), one of the major GAGs, binds to multifactorial mediators in the ECM and reportedly participates in tissue remodeling in various diseases; however, to date, its biological functions have drawn considerably less attention than other GAGs, like heparan sulfate. In the present review, we discuss the involvement and regulation of CS in tissue remodeling and pulmonary fibrotic diseases, its role in pulmonary fibrosis, and the therapeutic approaches targeting CS.
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Affiliation(s)
- Yoshiro Kai
- Department of Respiratory Medicine, Nara Medical University, 840 Shijo-cho, Kashihara-city, Nara, 634-8522, Japan; Department of Respiratory Medicine, Minami-Nara General Medical Center, 8-1 Fukugami, Oyodo-cho, Yoshino-gun, Nara, 638-8551, Japan.
| | - Hiroyuki Yoneyama
- TME Therapeutics Inc., 2-16-1 Higashi-shinbashi, Minato-ku, Tokyo, 105-0021, Japan.
| | - Masanori Yoshikawa
- Department of Respiratory Medicine, Nara Medical University, 840 Shijo-cho, Kashihara-city, Nara, 634-8522, Japan.
| | - Hiroshi Kimura
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose-city, Tokyo, 204-8522, Japan.
| | - Shigeo Muro
- Department of Respiratory Medicine, Nara Medical University, 840 Shijo-cho, Kashihara-city, Nara, 634-8522, Japan.
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16
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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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17
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Schaberg E, Theocharidis U, May M, Lessmann K, Schroeder T, Faissner A. Sulfation of Glycosaminoglycans Modulates the Cell Cycle of Embryonic Mouse Spinal Cord Neural Stem Cells. Front Cell Dev Biol 2021; 9:643060. [PMID: 34169071 PMCID: PMC8217649 DOI: 10.3389/fcell.2021.643060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 05/18/2021] [Indexed: 11/13/2022] Open
Abstract
In the developing spinal cord neural stem and progenitor cells (NSPCs) secrete and are surrounded by extracellular matrix (ECM) molecules that influence their lineage decisions. The chondroitin sulfate proteoglycan (CSPG) DSD-1-PG is an isoform of receptor protein tyrosine phosphatase-beta/zeta (RPTPβ/ζ), a trans-membrane receptor expressed by NSPCs. The chondroitin sulfate glycosaminoglycan chains are sulfated at distinct positions by sulfotransferases, thereby generating the distinct DSD-1-epitope that is recognized by the monoclonal antibody (mAb) 473HD. We detected the epitope, the critical enzymes and RPTPβ/ζ in the developing spinal cord. To obtain insight into potential biological functions, we exposed spinal cord NSPCs to sodium chlorate. The reagent suppresses the sulfation of glycosaminoglycans, thereby erasing any sulfation code expressed by the glycosaminoglycan polymers. When NSPCs were treated with chlorate and cultivated in the presence of FGF2, their proliferation rate was clearly reduced, while NSPCs exposed to EGF were less affected. Time-lapse video microscopy and subsequent single-cell tracking revealed that pedigrees of NSPCs cultivated with FGF2 were strongly disrupted when sulfation was suppressed. Furthermore, the NSPCs displayed a protracted cell cycle length. We conclude that the inhibition of sulfation with sodium chlorate interferes with the FGF2-dependent cell cycle progression in spinal cord NSPCs.
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Affiliation(s)
- Elena Schaberg
- Department for Cell Morphology and Molecular Neurobiology, Ruhr University Bochum, Bochum, Germany
| | - Ursula Theocharidis
- Department for Cell Morphology and Molecular Neurobiology, Ruhr University Bochum, Bochum, Germany
| | - Marcus May
- Department for Cell Morphology and Molecular Neurobiology, Ruhr University Bochum, Bochum, Germany
| | - Katrin Lessmann
- Department for Cell Morphology and Molecular Neurobiology, Ruhr University Bochum, Bochum, Germany
| | - Timm Schroeder
- Department of Biosystems Science and Engineering, ETH Zürich, Zurich, Switzerland
| | - Andreas Faissner
- Department for Cell Morphology and Molecular Neurobiology, Ruhr University Bochum, Bochum, Germany
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18
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Multilayer modelling of the human transcriptome and biological mechanisms of complex diseases and traits. NPJ Syst Biol Appl 2021; 7:24. [PMID: 34045472 PMCID: PMC8160250 DOI: 10.1038/s41540-021-00186-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 04/28/2021] [Indexed: 01/03/2023] Open
Abstract
Here, we performed a comprehensive intra-tissue and inter-tissue multilayer network analysis of the human transcriptome. We generated an atlas of communities in gene co-expression networks in 49 tissues (GTEx v8), evaluated their tissue specificity, and investigated their methodological implications. UMAP embeddings of gene expression from the communities (representing nearly 18% of all genes) robustly identified biologically-meaningful clusters. Notably, new gene expression data can be embedded into our algorithmically derived models to accelerate discoveries in high-dimensional molecular datasets and downstream diagnostic or prognostic applications. We demonstrate the generalisability of our approach through systematic testing in external genomic and transcriptomic datasets. Methodologically, prioritisation of the communities in a transcriptome-wide association study of the biomarker C-reactive protein (CRP) in 361,194 individuals in the UK Biobank identified genetically-determined expression changes associated with CRP and led to considerably improved performance. Furthermore, a deep learning framework applied to the communities in nearly 11,000 tumors profiled by The Cancer Genome Atlas across 33 different cancer types learned biologically-meaningful latent spaces, representing metastasis (p < 2.2 × 10−16) and stemness (p < 2.2 × 10−16). Our study provides a rich genomic resource to catalyse research into inter-tissue regulatory mechanisms, and their downstream consequences on human disease.
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19
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Song Y, Zhang F, Linhardt RJ. Glycosaminoglycans. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1325:103-116. [PMID: 34495531 DOI: 10.1007/978-3-030-70115-4_4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Glycosaminoglycans (GAGs) are important constituents of human glycome. They are negatively charged unbranched polysaccharides that are usually covalently attached to proteins, forming glycan-protein conjugates, called proteoglycans. Glycosaminoglycans play critical roles in numerous biological processes throughout individual development and are also involved in the pathological processes of various diseases. Based on their remarkable bioactivities and their universal involvement in disease progression, GAGs are applied as therapeutics or are being targeted or used in treating diseases. In this chapter, we introduce the characteristics of the four classes of GAGs that constitute the glycosaminoglycan family. The pathological roles of glycosaminoglycans in major diseases including innate disease, infectious disease, and cancer are discussed. The application of GAGs and their mimetics as therapeutics is introduced, as well as those therapeutic methods developed based on GAGs' role in pathogenesis. In addition, we provide a brief and overall lookback at the history of GAG research and sort out some critical techniques that facilitated GAG and glycomics studies.
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Affiliation(s)
- Yuefan Song
- National R&D Branch Center for Seaweed Processing, College of Food Science and Engineering, Dalian Ocean University, Dalian, PR China. .,Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA.
| | - Fuming Zhang
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Robert J Linhardt
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA.
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20
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Hayes AJ, Melrose J. Electro‐Stimulation, a Promising Therapeutic Treatment Modality for Tissue Repair: Emerging Roles of Sulfated Glycosaminoglycans as Electro‐Regulatory Mediators of Intrinsic Repair Processes. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.202000151] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Anthony J. Hayes
- Bioimaging Research Hub Cardiff School of Biosciences Cardiff University Cardiff Wales CF10 3AX UK
| | - James Melrose
- Raymond Purves Bone and Joint Research Laboratory Kolling Institute Northern Sydney Local Health District Faculty of Medicine and Health University of Sydney Royal North Shore Hospital St. Leonards NSW 2065 Australia
- Graduate School of Biomedical Engineering University of New South Wales Sydney NSW 2052 Australia
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21
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Hirose T, Mizumoto S, Hashimoto A, Takahashi Y, Yoshizawa T, Nitahara-Kasahara Y, Takahashi N, Nakayama J, Takehana K, Okada T, Nomura Y, Yamada S, Kosho T, Watanabe T. Systematic investigation of the skin in Chst14-/- mice: A model for skin fragility in musculocontractural Ehlers-Danlos syndrome caused by CHST14 variants (mcEDS-CHST14). Glycobiology 2020; 31:137-150. [PMID: 32601684 DOI: 10.1093/glycob/cwaa058] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 06/02/2020] [Accepted: 06/13/2020] [Indexed: 02/05/2023] Open
Abstract
Loss-of-function variants in CHST14 cause a dermatan 4-O-sulfotransferase deficiency named musculocontractural Ehlers-Danlos syndrome-CHST14 (mcEDS-CHST14), resulting in complete depletion of the dermatan sulfate moiety of decorin glycosaminoglycan (GAG) chains, which is replaced by chondroitin sulfate. Recently, we uncovered structural alteration of GAG chains in the skin of patients with mcEDS-CHST14. Here, we conducted the first systematic investigation of Chst14 gene-deleted homozygote (Chst14-/-) mice. We used skin samples of wild-type (Chst14+/+) and Chst14-/- mice. Mechanical fragility of the skin was measured with a tensile test. Pathology was observed using light microscopy, decorin immunohistochemistry and electron microscopy (EM) including cupromeronic blue (CB) staining. Quantification of chondroitin sulfate and dermatan sulfate was performed using enzymatic digestion followed by anion-exchange HPLC. In Chst14-/- mice, skin tensile strength was significantly decreased compared with that in Chst14+/+ mice. EM showed that collagen fibrils were oriented in various directions to form disorganized collagen fibers in the reticular layer. Through EM-based CB staining, rod-shaped linear GAG chains were found to be attached at one end to collagen fibrils and protruded outside of the fibrils, in contrast to them being round and wrapping the collagen fibrils in Chst14+/+ mice. A very low level of dermatan sulfate disaccharides was detected in the skin of Chst14-/- mice by anion-exchange chromatography. Chst14-/- mice, exhibiting similar abnormalities in the GAG structure of decorin and collagen networks in the skin, could be a reasonable model for skin fragility of patients with mcEDS-CHST14, shedding light on the role of dermatan sulfate in maintaining skin strength.
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Affiliation(s)
- Takuya Hirose
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Shuji Mizumoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Aichi 468-8503, Japan
| | - Ayana Hashimoto
- Department of Applied Protein Chemistry, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-0054, Japan
| | - Yuki Takahashi
- Department of Medical Genetics, Shinshu University Schoolof Medicine, Matsumoto, Nagano 390-8621, Japan
| | - Takahiro Yoshizawa
- Division of Animal Research, Research Center for Supports to Advanced Science, Shinshu University, Matsumoto, Nagano 390-8621, Japan
| | - Yuko Nitahara-Kasahara
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Bunkyo-ku, Tokyo 113-0022, Japan
| | - Naoki Takahashi
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Jun Nakayama
- Department of Molecular Pathology, Shinshu University School of Medicine, Matsumoto, Nagano 390-8621, Japan
| | - Kazushige Takehana
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Takashi Okada
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Bunkyo-ku, Tokyo 113-0022, Japan.,Center for Gene and Cell Therapy, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Yoshihiro Nomura
- Department of Applied Protein Chemistry, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-0054, Japan
| | - Shuhei Yamada
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Aichi 468-8503, Japan
| | - Tomoki Kosho
- Department of Medical Genetics, Shinshu University Schoolof Medicine, Matsumoto, Nagano 390-8621, Japan.,Center for Medical Genetics, Shinshu University Hospital, Matsumoto, Nagano 390-8621, Japan.,Research Center for Supports to Advanced Science, Shinshu University, Matsumoto, Nagano 390-8621, Japan
| | - Takafumi Watanabe
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
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22
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Byrne AB, Mizumoto S, Arts P, Yap P, Feng J, Schreiber AW, Babic M, King-Smith SL, Barnett CP, Moore L, Sugahara K, Mutlu-Albayrak H, Nishimura G, Liebelt JE, Yamada S, Savarirayan R, Scott HS. Pseudodiastrophic dysplasia expands the known phenotypic spectrum of defects in proteoglycan biosynthesis. J Med Genet 2020; 57:454-460. [PMID: 31988067 PMCID: PMC7361035 DOI: 10.1136/jmedgenet-2019-106700] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/09/2019] [Accepted: 12/21/2019] [Indexed: 02/06/2023]
Abstract
Background Pseudodiastrophic dysplasia (PDD) is a severe skeletal dysplasia associated with prenatal manifestation and early lethality. Clinically, PDD is classified as a ‘dysplasia with multiple joint dislocations’; however, the molecular aetiology of the disorder is currently unknown. Methods Whole exome sequencing (WES) was performed on three patients from two unrelated families, clinically diagnosed with PDD, in order to identify the underlying genetic cause. The functional effects of the identified variants were characterised using primary cells and human cell-based overexpression assays. Results WES resulted in the identification of biallelic variants in the established skeletal dysplasia genes, B3GAT3 (family 1) and CANT1 (family 2). Mutations in these genes have previously been reported to cause ‘multiple joint dislocations, short stature, and craniofacial dysmorphism with or without congenital heart defects’ (‘JDSCD’; B3GAT3) and Desbuquois dysplasia 1 (CANT1), disorders in the same nosological group as PDD. Follow-up of the B3GAT3 variants demonstrated significantly reduced B3GAT3/GlcAT-I expression. Downstream in vitro functional analysis revealed abolished biosynthesis of glycosaminoglycan side chains on proteoglycans. Functional evaluation of the CANT1 variant showed impaired nucleotidase activity, which results in inhibition of glycosaminoglycan synthesis through accumulation of uridine diphosphate. Conclusion For the families described in this study, the PDD phenotype was caused by mutations in the known skeletal dysplasia genes B3GAT3 and CANT1, demonstrating the advantage of genomic analyses in delineating the molecular diagnosis of skeletal dysplasias. This finding expands the phenotypic spectrum of B3GAT3-related and CANT1-related skeletal dysplasias to include PDD and highlights the significant phenotypic overlap of conditions within the proteoglycan biosynthesis pathway.
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Affiliation(s)
- Alicia B Byrne
- Department of Genetics and Molecular Pathology, Centre for Cancer Biology, An alliance between SA Pathology and the University of South Australia, Adelaide, South Australia, Australia.,School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Shuji Mizumoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Japan.,Research Center for Pathogenesis of Intractable Diseases, Meijo University, Nagoya, Japan.,Department of Women's and Children's Health, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Peer Arts
- Department of Genetics and Molecular Pathology, Centre for Cancer Biology, An alliance between SA Pathology and the University of South Australia, Adelaide, South Australia, Australia
| | - Patrick Yap
- Victorian Clinical Genetics Service, Royal Children's Hospital, Melbourne, Victoria, Australia.,Genetic Health Service New Zealand (Northern Hub), Auckland, New Zealand.,Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Jinghua Feng
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia.,ACRF Genomics Facility, Centre for Cancer Biology, An alliance between SA Pathology and the University of South Australia, Adelaide, South Australia, Australia
| | - Andreas W Schreiber
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia.,ACRF Genomics Facility, Centre for Cancer Biology, An alliance between SA Pathology and the University of South Australia, Adelaide, South Australia, Australia.,School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Milena Babic
- Department of Genetics and Molecular Pathology, Centre for Cancer Biology, An alliance between SA Pathology and the University of South Australia, Adelaide, South Australia, Australia
| | - Sarah L King-Smith
- Department of Genetics and Molecular Pathology, Centre for Cancer Biology, An alliance between SA Pathology and the University of South Australia, Adelaide, South Australia, Australia.,Australian Genomics Health Alliance, Melbourne, Victoria, Australia
| | - Christopher P Barnett
- South Australian Clinical Genetics Service, Women's and Children's Hospital, North Adelaide, South Australia, Australia.,School of Medicine, The University of Adelaide, Adelaide, South Australia, Australia
| | - Lynette Moore
- School of Medicine, The University of Adelaide, Adelaide, South Australia, Australia.,Department of Surgical Pathology, Women's and Children's Hospital, SA Pathology, North Adelaide, South Australia, Australia
| | - Kazuyuki Sugahara
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Hatice Mutlu-Albayrak
- Department of Pediatric Genetics, Cengiz Gökcek Obstetrics and Children's Hospital, Gaziantep, Turkey
| | - Gen Nishimura
- Department of Radiology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Jan E Liebelt
- South Australian Clinical Genetics Service, Women's and Children's Hospital, North Adelaide, South Australia, Australia
| | - Shuhei Yamada
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Japan.,Research Center for Pathogenesis of Intractable Diseases, Meijo University, Nagoya, Japan
| | - Ravi Savarirayan
- Victorian Clinical Genetics Service, Royal Children's Hospital, Melbourne, Victoria, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Hamish S Scott
- Department of Genetics and Molecular Pathology, Centre for Cancer Biology, An alliance between SA Pathology and the University of South Australia, Adelaide, South Australia, Australia .,School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia.,ACRF Genomics Facility, Centre for Cancer Biology, An alliance between SA Pathology and the University of South Australia, Adelaide, South Australia, Australia.,Australian Genomics Health Alliance, Melbourne, Victoria, Australia.,School of Medicine, The University of Adelaide, Adelaide, South Australia, Australia
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23
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Characterization of C. elegans Chondroitin Proteoglycans and Their Large Functional and Structural Heterogeneity; Evolutionary Aspects on Structural Differences Between Humans and the Nematode. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 21:155-170. [PMID: 32185697 DOI: 10.1007/5584_2020_485] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Proteoglycans regulate important cellular pathways in essentially all metazoan organisms. While considerable effort has been devoted to study structural and functional aspects of proteoglycans in vertebrates, the knowledge of the core proteins and proteoglycan-related functions in invertebrates is relatively scarce, even for C.elegans. This nematode produces a large amount of non-sulfated chondroitin in addition to small amount of low-sulfated chondroitin chains (Chn and CS chains, respectively). Until recently, 9 chondroitin core proteins (CPGs) had been identified in C.elegans, none of which showed any homology to vertebrate counterparts or to other invertebrate core proteins. By using a glycoproteomic approach, we recently characterized the chondroitin glycoproteome of C.elegans, resulting in the identification of 15 novel CPG core proteins in addition to the 9 previously established. Three of the novel core proteins displayed homology to human proteins, indicating that CPG and CSPG core proteins may be more conserved throughout evolution than previously perceived. Bioinformatic analysis of the primary amino acid sequences revealed that the core proteins contained a broad range of functional domains, indicating that specialization of proteoglycan-mediated functions may have evolved early in metazoan evolution. This review specifically discusses our recent data in relation to previous knowledge of core proteins and GAG-attachment sites in Chn and CS proteoglycans of C.elegans and humans, and point out both converging and diverging aspects of proteoglycan evolution.
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Viskochil D, Clarke LA, Bay L, Keenan H, Muenzer J, Guffon N. Growth patterns for untreated individuals with MPS I: Report from the international MPS I registry. Am J Med Genet A 2019; 179:2425-2432. [PMID: 31639289 PMCID: PMC6899772 DOI: 10.1002/ajmg.a.61378] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 09/12/2019] [Accepted: 09/13/2019] [Indexed: 12/13/2022]
Abstract
Mucopolysaccharidosis Type I (MPS I), caused by deficiency of α-L-iduronidase results in progressive, multisystemic disease with a broad phenotypic spectrum including patients with severe (Hurler syndrome) to attenuated (Hurler-Scheie and Scheie syndromes) disease. Disordered growth is common with either phenotype. The study objectives were to construct sex- and age-specific estimated length/height and head circumference growth curves for untreated individuals with severe and attenuated disease and compare them with clinical reference standards. Untreated individuals in the MPS I Registry with at least one observation for length/height and/or head circumference and assigned phenotype as of May 2017 were included. Median growth for 463 untreated individuals with severe disease deviated from reference growth curves by ~6 months of age and fell below the third percentile by 4 years of age. Median head circumference was above reference curves from 3 to 4 months through 3 years of age. Among 207 individuals with untreated attenuated disease, median height fell below the third percentile by 9 years of age with divergence from reference curves by 2 years of age. MPS I-specific growth curves will be useful in evaluation of long-term outcomes of therapeutics interventions and will provide a foundation for understanding the pathogenesis of skeletal disease in MPS I.
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Affiliation(s)
- David Viskochil
- Department of Pediatrics, Division of Medical GeneticsUniversity of Utah School of MedicineSalt Lake CityUtah
| | - Lorne A. Clarke
- British Columbia Children's Hospital Research InstituteUniversity of British ColumbiaVancouverBritish ColumbiaCanada
| | - Luisa Bay
- Hospital Nacional de Pediatría J. P. GarrahanCiudad Autónoma de Buenos AiresArgentina
| | | | - Joseph Muenzer
- Department of PediatricsUniversity of North Carolina at Chapel HillChapel HillNorth Carolina
| | - Nathalie Guffon
- Centre de Référence des Maladies Héréditaires du MétabolismeHôpital Femme Mère EnfantLyonFrance
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Further Defining the Phenotypic Spectrum of B3GAT3 Mutations and Literature Review on Linkeropathy Syndromes. Genes (Basel) 2019; 10:genes10090631. [PMID: 31438591 PMCID: PMC6770791 DOI: 10.3390/genes10090631] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/09/2019] [Accepted: 08/19/2019] [Indexed: 11/29/2022] Open
Abstract
The term linkeropathies (LKs) refers to a group of rare heritable connective tissue disorders, characterized by a variable degree of short stature, skeletal dysplasia, joint laxity, cutaneous anomalies, dysmorphism, heart malformation, and developmental delay. The LK genes encode for enzymes that add glycosaminoglycan chains onto proteoglycans via a common tetrasaccharide linker region. Biallelic variants in XYLT1 and XYLT2, encoding xylosyltransferases, are associated with Desbuquois dysplasia type 2 and spondylo-ocular syndrome, respectively. Defects in B4GALT7 and B3GALT6, encoding galactosyltransferases, lead to spondylodysplastic Ehlers-Danlos syndrome (spEDS). Mutations in B3GAT3, encoding a glucuronyltransferase, were described in 25 patients from 12 families with variable phenotypes resembling Larsen, Antley-Bixler, Shprintzen-Goldberg, and Geroderma osteodysplastica syndromes. Herein, we report on a 13-year-old girl with a clinical presentation suggestive of spEDS, according to the 2017 EDS nosology, in whom compound heterozygosity for two B3GAT3 likely pathogenic variants was identified. We review the spectrum of B3GAT3-related disorders and provide a comparison of all LK patients reported up to now, highlighting that LKs are a phenotypic continuum bridging EDS and skeletal disorders, hence offering future nosologic perspectives.
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Structural alteration of glycosaminoglycan side chains and spatial disorganization of collagen networks in the skin of patients with mcEDS-CHST14. Biochim Biophys Acta Gen Subj 2019; 1863:623-631. [DOI: 10.1016/j.bbagen.2018.12.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 12/07/2018] [Accepted: 12/12/2018] [Indexed: 12/31/2022]
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Paganini C, Costantini R, Rossi A. Analysis of Proteoglycan Synthesis and Secretion in Cell Culture Systems. Methods Mol Biol 2019; 1952:71-80. [PMID: 30825166 DOI: 10.1007/978-1-4939-9133-4_6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Experimental protocols for the synthesis and secretion of proteoglycans in cell culture models are important to study specific biosynthetic steps or disorders in which a defect in proteoglycans is expected. We describe a method using 35S-sulfate to metabolically label newly synthesized proteoglycans from cell cultures in order to measure proteoglycan synthesis and secretion. The method is set up for fibroblast and chondrocyte cultures, but can be extended to other cell types.
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Affiliation(s)
- Chiara Paganini
- Department of Molecular Medicine, Biochemistry Unit, University of Pavia, Pavia, Italy
| | - Rossella Costantini
- Department of Molecular Medicine, Biochemistry Unit, University of Pavia, Pavia, Italy
| | - Antonio Rossi
- Department of Molecular Medicine, Biochemistry Unit, University of Pavia, Pavia, Italy.
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Polyamines stimulate the CHSY1 synthesis through the unfolding of the RNA G-quadruplex at the 5'-untraslated region. Biochem J 2018; 475:3797-3812. [PMID: 30401686 DOI: 10.1042/bcj20180672] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/04/2018] [Accepted: 11/05/2018] [Indexed: 01/20/2023]
Abstract
Glycosaminoglycans (GAGs), a group of structurally related acidic polysaccharides, are primarily found as glycan moieties of proteoglycans (PGs). Among these, chondroitin sulfate (CS) and dermatan sulfate, side chains of PGs, are widely distributed in animal kingdom and show structural variations, such as sulfation patterns and degree of epimerization, which are responsible for their physiological functions through interactions with growth factors, chemokines and adhesion molecules. However, structural changes in CS, particularly the ratio of 4-O-sulfation to 6-O-sulfation (4S/6S) and CS chain length that occur during the aging process, are not fully understood. We found that 4S/6S ratio and molecular weight of CS were decreased in polyamine-depleted cells. In addition, decreased levels of chondroitin synthase 1 (CHSY1) and chondroitin 4-O-sulfotransferase 2 proteins were also observed on polyamine depletion. Interestingly, the translation initiation of CHSY1 was suppressed by a highly structured sequence (positions -202 to -117 relative to the initiation codon) containing RNA G-quadruplex (G4) structures in 5'-untranslated region. The formation of the G4s was influenced by the neighboring sequences to the G4s and polyamine stimulation of CHSY1 synthesis disappeared when the formation of the G4s was inhibited by site-directed mutagenesis. These results suggest that the destabilization of G4 structures by polyamines stimulates CHSY1 synthesis and, at least in part, contribute to the maturation of CS chains.
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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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Kizuka Y, Mishra S, Yamaguchi Y, Taniguchi N. Implication of C-type lectin receptor langerin and keratan sulfate disaccharide in emphysema. Cell Immunol 2018; 333:80-84. [PMID: 30025865 DOI: 10.1016/j.cellimm.2018.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 07/02/2018] [Accepted: 07/12/2018] [Indexed: 01/27/2023]
Abstract
Glycosylation is profoundly involved in various diseases, and interactions between glycan binding proteins and their sugar ligands are plausible drug targets. Keratan sulfate (KS), a glycosaminoglycan, is downregulated in lungs by cigarette smoking, suggesting that KS is involved in smoking-related diseases, such as chronic obstructive pulmonary disease (COPD). We found that a highly sulfated KS disaccharide, L4, suppresses lung inflammation and is effective against COPD and its exacerbation in mouse models. Its anti-inflammatory activity was comparable to that of a steroid. As a possible mechanism, langerin, a C-type lectin receptor (CLR) expressed in dendritic cells, was suggested to function as an L4 receptor. Oligomeric L4 derivatives were chemically designed to create new ligands with higher affinity and activity. The synthetic L4 oligomers bound to langerin with over 1000-fold higher affinity than the L4 monomer, suggesting that these compounds are effective drug candidates against COPD and inflammatory diseases.
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Affiliation(s)
- Yasuhiko Kizuka
- Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, Gifu, Gifu 501-1193, Japan.
| | - Sushil Mishra
- Systems Glycobiology Research Group, Global Research Cluster, RIKEN, Wako, Saitama 351-0198, Japan
| | - Yoshiki Yamaguchi
- Systems Glycobiology Research Group, Global Research Cluster, RIKEN, Wako, Saitama 351-0198, Japan
| | - Naoyuki Taniguchi
- Systems Glycobiology Research Group, Global Research Cluster, RIKEN, Wako, Saitama 351-0198, Japan; Department of Glyco-Oncology and Medical Biochemistry, Osaka International Cancer Institute, Chuoku, Osaka 541-8567, Japan.
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Crespo A, García-Suárez O, Fernández-Vega I, Solis-Hernandez MP, García B, Castañón S, Quirós LM. Heparan sulfate proteoglycans undergo differential expression alterations in left sided colorectal cancer, depending on their metastatic character. BMC Cancer 2018; 18:687. [PMID: 29940912 PMCID: PMC6019305 DOI: 10.1186/s12885-018-4597-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 06/15/2018] [Indexed: 12/21/2022] Open
Abstract
Background Heparan sulfate proteoglycans (HSPGs) are complex molecules which play a role in the invasion and growth and metastatic properties of cancerous cells. In this work we analyze changes in the patterns of expression of HSPGs in left sided colorectal cancer (LSCRC), both metastatic and non-metastatic, and the results are also compared with those previously obtained for right sided tumors (RSCRCs). Methods Eighteen LSCRCs were studied using qPCR to analyze the expression of both the proteoglycan core proteins and the enzymes involved in heparan sulfate chain biosynthesis. Certain HSPGs also carry chondroitin sulfate chains and so we also studied the genes involved in its biosynthesis. The expression of certain genes that showed significant expression differences were also analysed using immunohistochemical techniques. Results Changes in proteoglycan core proteins were dependent on their location, and the main differences between metastatic and non-metastatic tumors affected cell-surface glypicans, while other molecules were quite similar. Glypicans were also responsible for the main differences between RS- and LS- malignances. Regarding the biosynthesis of heparan sulfate chains, differential alterations in transcription depending on the presence or not of metastasis affected genes involved in the modification of uronic acid (epimerization and 2-O sulfation), and some isoforms responsible for sulfation of glucosamine (NDST1, HS6ST1). Moreover, in RSCRCs differences were preferentially found in the expression of genes involved in C6 and C3 sulfation of glucosamine, but not in NDSTs or SULFs. Finally, synthesis of chondroitin sulfate showed some alterations, which affected various steps, including polimerization and the modification of chains, but the main variations dependent on the presence of metastases were epimerization and 6C sulfation; however, when compared with RSCRCs, the essential divergences affected polymerization of the chains and the 6C sulfation of the galactosamine residue. Conclusions We evidenced alterations in the expression of HSPGs, including the expression of cell surface core proteins, many glycosiltransferases and some enzymes that modify the GAG chains in LSCRCs, but this was dependent on the metastatic nature of the tumor. Some of these alterations are shared with RSCRCs, while others, focused on specific gene groups, are dependent on tumor localization. Electronic supplementary material The online version of this article (10.1186/s12885-018-4597-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ainara Crespo
- Department of Biotechnology, Neiker-Tecnalia Arkaute, 01080, Vitoria-Gasteiz, Spain
| | - Olivia García-Suárez
- Instituto Universitario Fernández-Vega, and Department of Morphology and Cell Biology, University of Oviedo, 33006, Oviedo, Spain
| | - Iván Fernández-Vega
- Instituto Universitario Fernández-Vega, and Department of Pathology, Hospital Universitario Central de Asturias, Oviedo, 33006, Spain.,Department of Surgery and Medical-surgical Specialties, University of Oviedo, 33006, Oviedo, Spain
| | | | - Beatriz García
- Instituto Universitario Fernández-Vega, and Department of Functional Biology, University of Oviedo, 33006, Oviedo, Spain
| | - Sonia Castañón
- Department of Biotechnology, Neiker-Tecnalia Arkaute, 01080, Vitoria-Gasteiz, Spain
| | - Luis M Quirós
- Instituto Universitario Fernández-Vega, and Department of Functional Biology, University of Oviedo, 33006, Oviedo, Spain.
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De Pasquale V, Sarogni P, Pistorio V, Cerulo G, Paladino S, Pavone LM. Targeting Heparan Sulfate Proteoglycans as a Novel Therapeutic Strategy for Mucopolysaccharidoses. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2018; 10:8-16. [PMID: 29942826 PMCID: PMC6011039 DOI: 10.1016/j.omtm.2018.05.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 05/13/2018] [Indexed: 12/31/2022]
Abstract
Mucopolysaccharidoses (MPSs) are inherited metabolic diseases caused by the deficiency of lysosomal enzymes needed to catabolize glycosaminoglycans (GAGs). Four therapeutic options are currently considered: enzyme replacement therapy, substrate reduction therapy, gene therapy, and hematopoietic stem cell transplantation. However, while some of them exhibit limited clinical efficacy and require high costs, others are still in development. Therefore, alternative treatments for MPSs need to be explored. Here we describe an innovative therapeutic approach based on the use of a recombinant protein that is able to bind the excess of extracellular accumulated heparan sulfate (HS). We demonstrate that this protein is able to reduce lysosomal defects in primary fibroblasts from MPS I and MPS IIIB patients. We also show that, by masking the excess of extracellular accumulated HS in MPS fibroblasts, fibroblast growth factor (FGF) signal transduction can be positively modulated. We, therefore, suggest the use of a competitive binding molecule for HS in MPSs as an alternative strategy to prevent the detrimental extracellular substrate storage.
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Affiliation(s)
- Valeria De Pasquale
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Patrizia Sarogni
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Valeria Pistorio
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Giuliana Cerulo
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Simona Paladino
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Luigi Michele Pavone
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
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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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Noborn F, Gomez Toledo A, Nasir W, Nilsson J, Dierker T, Kjellén L, Larson G. Expanding the chondroitin glycoproteome of Caenorhabditis elegans. J Biol Chem 2017; 293:379-389. [PMID: 29138239 DOI: 10.1074/jbc.m117.807800] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/23/2017] [Indexed: 12/22/2022] Open
Abstract
Chondroitin sulfate proteoglycans (CSPGs) are important structural components of connective tissues in essentially all metazoan organisms. In vertebrates, CSPGs are involved also in more specialized processes such as neurogenesis and growth factor signaling. In invertebrates, however, knowledge of CSPGs core proteins and proteoglycan-related functions is relatively limited, even for Caenorhabditis elegans. This nematode produces large amounts of non-sulfated chondroitin in addition to low-sulfated chondroitin sulfate chains. So far, only nine core proteins (CPGs) have been identified, some of which have been shown to be involved in extracellular matrix formation. We recently introduced a protocol to characterize proteoglycan core proteins by identifying CS-glycopeptides with a combination of biochemical enrichment, enzymatic digestion, and nano-scale liquid chromatography MS/MS analysis. Here, we have used this protocol to map the chondroitin glycoproteome in C. elegans, resulting in the identification of 15 novel CPG proteins in addition to the nine previously established. Three of the newly identified CPGs displayed homology to vertebrate proteins. Bioinformatics analysis of the primary protein sequences revealed that the CPG proteins altogether contained 19 unique functional domains, including Kunitz and endostatin domains, suggesting direct involvement in protease inhibition and axonal migration, respectively. The analysis of the core protein domain organization revealed that all chondroitin attachment sites are located in unstructured regions. Our results suggest that CPGs display a much greater functional and structural heterogeneity than previously appreciated and indicate that specialized proteoglycan-mediated functions evolved early in metazoan evolution.
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Affiliation(s)
- Fredrik Noborn
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, University of Gothenburg, SE-413 45 Gothenburg
| | - Alejandro Gomez Toledo
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, University of Gothenburg, SE-413 45 Gothenburg
| | - Waqas Nasir
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, University of Gothenburg, SE-413 45 Gothenburg
| | - Jonas Nilsson
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, University of Gothenburg, SE-413 45 Gothenburg
| | - Tabea Dierker
- Department of Medical Biochemistry and Microbiology, Uppsala University, SE-751 23 Uppsala, Sweden
| | - Lena Kjellén
- Department of Medical Biochemistry and Microbiology, Uppsala University, SE-751 23 Uppsala, Sweden
| | - Göran Larson
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, University of Gothenburg, SE-413 45 Gothenburg.
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Sequencing of chondroitin sulfate oligosaccharides using a novel exolyase from a marine bacterium that degrades hyaluronan and chondroitin sulfate/dermatan sulfate. Biochem J 2017; 474:3831-3848. [PMID: 28963345 DOI: 10.1042/bcj20170591] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 09/22/2017] [Accepted: 09/25/2017] [Indexed: 12/28/2022]
Abstract
Glycosaminoglycans (GAGs) are a family of chemically heterogeneous polysaccharides that play important roles in physiological and pathological processes. Owing to the structural complexity of GAGs, their sophisticated chemical structures and biological functions have not been extensively studied. Lyases that cleave GAGs are important tools for structural analysis. Although various GAG lyases have been identified, exolytic lyases with unique enzymatic property are urgently needed for GAG sequencing. In the present study, a putative exolytic GAG lyase from a marine bacterium was recombinantly expressed and characterized in detail. Since it showed exolytic lyase activity toward hyaluronan (HA), chondroitin sulfate (CS), and dermatan sulfate (DS), it was designated as HCDLase. This novel exolyase exhibited the highest activity in Tris-HCl buffer (pH 7.0) at 30°C. Especially, it showed a specific activity that released 2-aminobenzamide (2-AB)-labeled disaccharides from the reducing end of 2-AB-labeled CS oligosaccharides, which suggest that HCDLase is not only a novel exolytic lyase that can split disaccharide residues from the reducing termini of sugar chains but also a useful tool for the sequencing of CS chains. Notably, HCDLase could not digest 2-AB-labeled oligosaccharides from HA, DS, or unsulfated chondroitin, which indicated that sulfates and bond types affect the catalytic activity of HCDLase. Finally, this enzyme combined with CSase ABC was successfully applied for the sequencing of several CS hexa- and octasaccharides with complex structures. The identification of HCDLase provides a useful tool for CS-related research and applications.
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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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Guo L, Elcioglu NH, Mizumoto S, Wang Z, Noyan B, Albayrak HM, Yamada S, Matsumoto N, Miyake N, Nishimura G, Ikegawa S. Identification of biallelic EXTL3 mutations in a novel type of spondylo-epi-metaphyseal dysplasia. J Hum Genet 2017; 62:797-801. [PMID: 28331220 PMCID: PMC5537416 DOI: 10.1038/jhg.2017.38] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 02/28/2017] [Accepted: 03/01/2017] [Indexed: 02/06/2023]
Abstract
Spondylo-epi-metaphyseal dysplasia (SEMD) is a group of inherited skeletal diseases characterized by the anomalies in spine, epiphyses and metaphyses. SEMD is highly heterogeneous and >20 distinct entities have been identified. Here we describe a novel type of SEMD in two unrelated Turkish patients who presented with severe platyspondyly, kyphoscoliosis, pelvic distortion, constriction of the proximal femora and brachydactyly. Although these phenotypes overlap considerably with some known SEMDs, they had a novel causal gene, exostosin-like glycosyltransferase 3 (EXTL3), that encodes a glycosyltransferase involved in the synthesis of heparin and heparan sulfate. The EXTL3 mutation identified in the patients was a homozygous missense mutation (c.953C>T) that caused a substitution in a highly conserved amino acid (p.P318L). The enzyme activity of the mutant EXTL3 protein was significantly decreased compared to the wild-type protein. Both patients had spinal cord compression at the cranio-vertebral junction and multiple liver cysts since early infancy. One of the patients showed severe immunodeficiency, which is considered non-fortuitous association. Our findings would help define a novel type of SEMD caused by EXTL3 mutations.
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Affiliation(s)
- Long Guo
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan
| | - Nursel H Elcioglu
- Department of Pediatric Genetics, Marmara University Medical School, Istanbul, Turkey.,Eastern Mediterranean University Medical School, Cyprus, Mersin, Turkey
| | - Shuji Mizumoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Zheng Wang
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan
| | - Bilge Noyan
- Department of Pediatric Genetics, Marmara University Medical School, Istanbul, Turkey
| | - Hatice M Albayrak
- Department of Pediatric Genetics, Ondokuz Mayis University Medical School, Samsun, Turkey
| | - Shuhei Yamada
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Noriko Miyake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Gen Nishimura
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan.,Department of Pediatric Imaging, Tokyo Metropolitan Children's Medical Center, Fuchu, Japan
| | - Shiro Ikegawa
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan
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Oliveira-Ferrer L, Legler K, Milde-Langosch K. Role of protein glycosylation in cancer metastasis. Semin Cancer Biol 2017; 44:141-152. [PMID: 28315783 DOI: 10.1016/j.semcancer.2017.03.002] [Citation(s) in RCA: 174] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 03/08/2017] [Accepted: 03/13/2017] [Indexed: 02/06/2023]
Abstract
Although altered glycosylation has been detected in human cancer cells decades ago, only investigations in the last years have enormously increased our knowledge about the details of protein glycosylation and its role in tumour progression. Many proteins, which are heavily glycosylated, i.e. adhesion proteins or proteases, play an important role in cancer metastasis that represents the crucial and frequently life-threatening step in progression of most tumour types. Compared to normal tissue, tumour cells often show altered glycosylation patters with appearance of new tumour-specific antigens. In this review, we give an overview about the role of glycosylation in tumour metastasis, describing recent results about O-glycans, N-glycans and glycosaminoglycans. We show that glycan structures, glycosylated proteins and glycosylation enzymes have influence on different steps of the metastatic process, including epithelial-mesenchymal transition (EMT), migration, invasion/intravasation and extravasation of tumour cells. Regarding the important role of cancer metastasis for patients survival, further knowledge about the consequences of altered glycosylation patterns in tumour cells is needed which might eventually lead to the development of novel therapeutic approaches.
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Affiliation(s)
| | - Karen Legler
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Karin Milde-Langosch
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Mohamed HT, Untereiner V, Sockalingum GD, Brézillon S. Implementation of infrared and Raman modalities for glycosaminoglycan characterization in complex systems. Glycoconj J 2016; 34:309-323. [PMID: 27928742 PMCID: PMC5487820 DOI: 10.1007/s10719-016-9743-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/27/2016] [Accepted: 10/12/2016] [Indexed: 10/25/2022]
Abstract
Glycosaminoglycans (GAGs) are natural, linear and negatively charged heteropolysaccharides which are incident in every mammalian tissue. They consist of repeating disaccharide units, which are composed of either sulfated or non-sulfated monosaccharides. Depending on tissue types, GAGs exhibit structural heterogeneity such as the position and degree of sulfation or within their disaccharide units composition being heparin, heparan sulfate, chondroitine sulfate, dermatan sulfate, keratan sulfate, and hyaluronic acid. They are covalently linked to a core protein (proteoglycans) or as free chains (hyaluronan). GAGs affect cell properties and functions either by direct interaction with cell receptors or by sequestration of growth factors. These evidences of divert biological roles of GAGs make their characterization at cell and tissue levels of importance. Thus, non-invasive techniques are interesting to investigate, to qualitatively and quantitatively characterize GAGs in vitro in order to use them as diagnostic biomarkers and/or as therapeutic targets in several human diseases including cancer. Infrared and Raman microspectroscopies and imaging are sensitive enough to differentiate and classify GAG types and subtypes in spite of their close molecular structures. Spectroscopic markers characteristic of reference GAG molecules were identified. Beyond these investigations of the standard GAG spectral signature, infrared and Raman spectral signatures of GAG were searched in complex biological systems like cells. The aim of the present review is to describe the implementation of these complementary vibrational spectroscopy techniques, and to discuss their potentials, advantages and disadvantages for GAG analysis. In addition, this review presents new data as we show for the first time GAG infrared and Raman spectral signatures from conditioned media and live cells, respectively.
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Affiliation(s)
- Hossam Taha Mohamed
- Department of Zoology, Faculty of Science, Cairo University, Giza, Egypt.,CNRS UMR7369, Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Reims, France.,MéDIAN-Biophotonique et Technologies pour la Santé, UFR de Pharmacie, Reims, France
| | - Valérie Untereiner
- CNRS UMR7369, Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Reims, France.,MéDIAN-Biophotonique et Technologies pour la Santé, UFR de Pharmacie, Reims, France.,Plateforme d'imagerie Cellulaire et Tissulaire (PICT), Université de Reims Champagne-Ardenne, Reims, France
| | - Ganesh D Sockalingum
- CNRS UMR7369, Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Reims, France.,MéDIAN-Biophotonique et Technologies pour la Santé, UFR de Pharmacie, Reims, France
| | - Stéphane Brézillon
- CNRS UMR7369, Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Reims, France. .,Laboratoire de Biochimie Médicale et Biologie Moléculaire, UFR de Médecine, Université de Reims Champagne-Ardenne, Reims, France.
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40
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Job F, Mizumoto S, Smith L, Couser N, Brazil A, Saal H, Patterson M, Gibson MI, Soden S, Miller N, Thiffault I, Saunders C, Yamada S, Hoffmann K, Sugahara K, Farrow E. Functional validation of novel compound heterozygous variants in B3GAT3 resulting in severe osteopenia and fractures: expanding the disease phenotype. BMC MEDICAL GENETICS 2016; 17:86. [PMID: 27871226 PMCID: PMC5117547 DOI: 10.1186/s12881-016-0344-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 11/06/2016] [Indexed: 02/02/2023]
Abstract
Background A new disease class of syndromes, described as linkeropathies, which are derived from defects in the glycosaminoglycan-linker region as well as glycosaminoglycan-side chains of proteoglycans is increasingly being recognized as a cause of human disease. Proteoglycans are an essential component of the extracellular matrix. Defects in the enzymatic process of proteoglycan synthesis broadly occur due to the incorrect addition of side chains. Previously, homozygous missense variants within the B3GAT3 gene encoding beta 1,3 glucuronyltransferase 3(GlcAT-I) responsible for the biosynthesis of glycosaminoglycans have been described in 7 individuals. Case presentation In this study, a 4-year-old patient with a severe phenotype of osteoporosis, hypotonia, joint laxity, fractures, scoliosis, biscuspid aortic valve and myopia was referred for next generation sequencing after extensive negative clinical testing. Whole exome sequencing was performed on the proband and his unaffected parents to identify the molecular basis of his disease. Sequencing revealed compound heterozygous variants in B3GAT3: c.1A > G (p.Met1?) and c.671 T > A (p.L224Q). Clinical and in vitro functional studies were then completed to verify the pathogenicity of the genotype and further characterize the functional basis of the patient’s disease demonstrating the patient had a decrease both in the protein level of B3GAT3 and in the glucuronyltransferase activity when compared to control samples. Independent in vitro assessment of each variant confirmed the B3GAT3: c.1A > G (p.Met1?) variant is functionally null and the c.671 T > A (p.L224Q) missense variant has significantly reduced glucuronyltransferase activity (~3% of control). Conclusions This is the first report of a patient with compound heterozygosity for a null variant in trans with a missense in B3GAT3 resulting in a severe phenotype, expanding both the genotypic and phenotypic spectrum of B3GAT3-related disease. Electronic supplementary material The online version of this article (doi:10.1186/s12881-016-0344-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Florian Job
- Institute for Human Genetics and Molecular Biology, Martin Luther University Halle-Wittenberg, Magdeburger Str. 2, 06112, Halle (Saale), Germany
| | - Shuji Mizumoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, Aichi, 468-8503, Japan
| | - Laurie Smith
- University of North Carolina School of Medicine, Division of Pediatric Genetics and Metabolism, Department of Pediatrics, Raleigh, NC, USA
| | - Natario Couser
- University of North Carolina School of Medicine, Division of Pediatric Genetics and Metabolism, Department of Pediatrics, Raleigh, NC, USA
| | - Ashley Brazil
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Howard Saal
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Melanie Patterson
- Department of Pathology, Children's Mercy Hospitals and Clinics, Kansas City, MO, USA
| | - Margaret I Gibson
- Department of Pathology, Children's Mercy Hospitals and Clinics, Kansas City, MO, USA
| | - Sarah Soden
- Department of Pediatrics, Children's Mercy Hospitals and Clinics, Kansas City, MO, USA
| | - Neil Miller
- Department of Medical Informatics, Children's Mercy Hospitals and Clinics, Kansas City, MO, USA
| | - Isabelle Thiffault
- Department of Pathology, Children's Mercy Hospitals and Clinics, Kansas City, MO, USA
| | - Carol Saunders
- Department of Pathology, Children's Mercy Hospitals and Clinics, Kansas City, MO, USA
| | - Shuhei Yamada
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, Aichi, 468-8503, Japan
| | - Katrin Hoffmann
- Institute for Human Genetics and Molecular Biology, Martin Luther University Halle-Wittenberg, Magdeburger Str. 2, 06112, Halle (Saale), Germany
| | - Kazuyuki Sugahara
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, Aichi, 468-8503, Japan. .,The Laboratory of Proteoglycan Signaling and Therapeutics, Graduate School of Life Science, Faculty of Advanced Life Science, Hokkaido University, Sapporo, 001-0021, Japan.
| | - Emily Farrow
- Department of Pediatrics, Children's Mercy Hospitals and Clinics, Kansas City, MO, USA. .,Center for Pediatric Genomic Medicine, Children's Mercy Hospitals and Clinics, 2420 Pershing, Suite 100, Kansas City, MO, USA.
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41
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Silveira C, Leal GF, Cavalcanti DP. Desbuquois dysplasia type II in a patient with a homozygous mutation in XYLT1 and new unusual findings. Am J Med Genet A 2016; 170:3043-3047. [PMID: 27481334 DOI: 10.1002/ajmg.a.37858] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 07/01/2016] [Indexed: 01/02/2023]
Affiliation(s)
- Cynthia Silveira
- Skeletal Dysplasia Group, Department of Medical Genetic, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Gabriela F Leal
- Professor Fernando Figueira Integral Medicine Institute (IMIP), Recife, Pernambuco, Brazil
| | - Denise P Cavalcanti
- Skeletal Dysplasia Group, Department of Medical Genetic, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.
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Site-specific identification of heparan and chondroitin sulfate glycosaminoglycans in hybrid proteoglycans. Sci Rep 2016; 6:34537. [PMID: 27694851 PMCID: PMC5046109 DOI: 10.1038/srep34537] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 09/14/2016] [Indexed: 12/12/2022] Open
Abstract
Heparan sulfate (HS) and chondroitin sulfate (CS) are complex polysaccharides that regulate important biological pathways in virtually all metazoan organisms. The polysaccharides often display opposite effects on cell functions with HS and CS structural motifs presenting unique binding sites for specific ligands. Still, the mechanisms by which glycan biosynthesis generates complex HS and CS polysaccharides required for the regulation of mammalian physiology remain elusive. Here we present a glycoproteomic approach that identifies and differentiates between HS and CS attachment sites and provides identity to the core proteins. Glycopeptides were prepared from perlecan, a complex proteoglycan known to be substituted with both HS and CS chains, further digested with heparinase or chondroitinase ABC to reduce the HS and CS chain lengths respectively, and thereafter analyzed by nLC-MS/MS. This protocol enabled the identification of three consensus HS sites and one hybrid site, carrying either a HS or a CS chain. Inspection of the amino acid sequence at the hybrid attachment locus indicates that certain peptide motifs may encode for the chain type selection process. This analytical approach will become useful when addressing fundamental questions in basic biology specifically in elucidating the functional roles of site-specific glycosylations of proteoglycans.
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Vodopiutz J, Mizumoto S, Lausch E, Rossi A, Unger S, Janocha N, Costantini R, Seidl R, Greber-Platzer S, Yamada S, Müller T, Jilma B, Ganger R, Superti-Furga A, Ikegawa S, Sugahara K, Janecke AR. Chondroitin SulfateN-acetylgalactosaminyltransferase-1 (CSGalNAcT-1) Deficiency Results in a Mild Skeletal Dysplasia and Joint Laxity. Hum Mutat 2016; 38:34-38. [DOI: 10.1002/humu.23070] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 08/29/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Julia Vodopiutz
- Department of Pediatrics and Adolescent Medicine; Medical University of Vienna; Vienna Austria
| | - Shuji Mizumoto
- Department of Pathobiochemistry; Faculty of Pharmacy; Meijo University; Tempaku ku; Nagoya Aichi Japan
| | - Ekkehart Lausch
- Department of Pediatrics; Medical Center, Faculty of Medicine; University of Freiburg; Freiburg Germany
| | - Antonio Rossi
- Department of Molecular Medicine; Unit of Biochemistry; University of Pavia; Pavia Italy
| | - Sheila Unger
- Department of Medical Genetics; Centre Hospitalier Universitaire Vaudois; University of Lausanne; Lausanne Switzerland
| | - Nikolaus Janocha
- Department of Pediatrics; Medical Center, Faculty of Medicine; University of Freiburg; Freiburg Germany
| | - Rossella Costantini
- Department of Molecular Medicine; Unit of Biochemistry; University of Pavia; Pavia Italy
| | - Rainer Seidl
- Department of Pediatrics and Adolescent Medicine; Medical University of Vienna; Vienna Austria
| | - Susanne Greber-Platzer
- Department of Pediatrics and Adolescent Medicine; Medical University of Vienna; Vienna Austria
| | - Shuhei Yamada
- Department of Pathobiochemistry; Faculty of Pharmacy; Meijo University; Tempaku ku; Nagoya Aichi Japan
| | - Thomas Müller
- Department of Pediatrics I; Medical University of Innsbruck; Innsbruck Austria
| | - Bernd Jilma
- Department of Clinical Pharmacology; Medical University of Vienna; Vienna Austria
| | - Rudolf Ganger
- Paediatric Department; Orthopaedic Hospital of Speising; Vienna Austria
| | - Andrea Superti-Furga
- Department of Pediatrics; Centre Hospitalier Universitaire Vaudois; University of Lausanne; Lausanne Switzerland
| | - Shiro Ikegawa
- Laboratory for Bone and Joint Diseases; Center for Integrative Medical Sciences; RIKEN; Tokyo Japan
| | - Kazuyuki Sugahara
- Department of Pathobiochemistry; Faculty of Pharmacy; Meijo University; Tempaku ku; Nagoya Aichi Japan
| | - Andreas R. Janecke
- Department of Pediatrics I; Medical University of Innsbruck; Innsbruck Austria
- Division of Human Genetics; Medical University of Innsbruck; Innsbruck Austria
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44
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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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45
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Ozaltin K, Lehocký M, Kuceková Z, Humpolíček P, Sáha P. A novel multistep method for chondroitin sulphate immobilization and its interaction with fibroblast cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 70:94-100. [PMID: 27770972 DOI: 10.1016/j.msec.2016.08.065] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 08/22/2016] [Accepted: 08/24/2016] [Indexed: 12/16/2022]
Abstract
Polymeric biomaterials are widely used in medical applications owing to their low cost, processability and sufficient toughness. Surface modification by creating a thin film of bioactive agents is promising technique to enhance cellular interactions, regulate the protein adsorption and/or avoid bacterial infections. Polyethylene is one of the most used polymeric biomaterial but its hydrophobic nature impedes its further chemical modifications. Plasma treatment is unique method to increase its hydrophilicity by incorporating hydrophilic oxidative functional groups and tailoring the surface by physical etching. Furthermore, grafting of polymer brushes of amine group containing monomers onto the functionalized surface lead to strongly immobilized bioactive agents at the final step. Chondroitin sulphate is natural polysaccharide mainly found in connective cartilage tissue which used as a bioactive agent to immobilize onto polyethylene surface by multistep method in this study.
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Affiliation(s)
- Kadir Ozaltin
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Marián Lehocký
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic.
| | - Zdenka Kuceková
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Petr Humpolíček
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Petr Sáha
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
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Coutinho MF, Santos JI, Alves S. Less Is More: Substrate Reduction Therapy for Lysosomal Storage Disorders. Int J Mol Sci 2016; 17:ijms17071065. [PMID: 27384562 PMCID: PMC4964441 DOI: 10.3390/ijms17071065] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 06/24/2016] [Accepted: 06/27/2016] [Indexed: 12/11/2022] Open
Abstract
Lysosomal storage diseases (LSDs) are a group of rare, life-threatening genetic disorders, usually caused by a dysfunction in one of the many enzymes responsible for intralysosomal digestion. Even though no cure is available for any LSD, a few treatment strategies do exist. Traditionally, efforts have been mainly targeting the functional loss of the enzyme, by injection of a recombinant formulation, in a process called enzyme replacement therapy (ERT), with no impact on neuropathology. This ineffectiveness, together with its high cost and lifelong dependence is amongst the main reasons why additional therapeutic approaches are being (and have to be) investigated: chaperone therapy; gene enhancement; gene therapy; and, alternatively, substrate reduction therapy (SRT), whose aim is to prevent storage not by correcting the original enzymatic defect but, instead, by decreasing the levels of biosynthesis of the accumulating substrate(s). Here we review the concept of substrate reduction, highlighting the major breakthroughs in the field and discussing the future of SRT, not only as a monotherapy but also, especially, as complementary approach for LSDs.
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Affiliation(s)
- Maria Francisca Coutinho
- Department of Human Genetics, Research and Development Unit, National Health Institute Doutor Ricardo Jorge, Rua Alexandre Herculano, 321 4000-055 Porto, Portugal.
| | - Juliana Inês Santos
- Department of Human Genetics, Research and Development Unit, National Health Institute Doutor Ricardo Jorge, Rua Alexandre Herculano, 321 4000-055 Porto, Portugal.
| | - Sandra Alves
- Department of Human Genetics, Research and Development Unit, National Health Institute Doutor Ricardo Jorge, Rua Alexandre Herculano, 321 4000-055 Porto, Portugal.
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Abstract
Notch 1 to 4 receptors are important determinants of cell fate and function, and Notch signaling plays an important role in skeletal development and bone remodeling. After direct interactions with ligands of the Jagged and Delta-like families, a series of cleavages release the Notch intracellular domain (NICD), which translocates to the nucleus where it induces transcription of Notch target genes. Classic gene targets of Notch are hairy and enhancer of split (Hes) and Hes-related with YRPW motif (Hey). In cells of the osteoblastic lineage, Notch activation inhibits cell differentiation and causes cancellous bone osteopenia because of impaired bone formation. In osteocytes, Notch1 has distinct effects that result in an inhibition of bone resorption secondary to an induction of osteoprotegerin and suppression of sclerostin with a consequent enhancement of Wnt signaling. Notch1 inhibits, whereas Notch2 enhances, osteoclastogenesis and bone resorption. Congenital disorders of loss- and gain-of-Notch function present with severe clinical manifestations, often affecting the skeleton. Enhanced Notch signaling is associated with osteosarcoma, and Notch can influence the invasive potential of carcinoma of the breast and prostate. Notch signaling can be controlled by the use of inhibitors of Notch activation, small peptides that interfere with the formation of a transcriptional complex, or antibodies to the extracellular domain of specific Notch receptors or to Notch ligands. In conclusion, Notch plays a critical role in skeletal development and homeostasis, and serious skeletal disorders can be attributed to alterations in Notch signaling.
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Affiliation(s)
- Stefano Zanotti
- Departments of Orthopaedic Surgery and Medicine and the UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut 06030
| | - Ernesto Canalis
- Departments of Orthopaedic Surgery and Medicine and the UConn Musculoskeletal Institute, UConn Health, Farmington, Connecticut 06030
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48
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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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49
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Sasarman F, Maftei C, Campeau PM, Brunel-Guitton C, Mitchell GA, Allard P. Biosynthesis of glycosaminoglycans: associated disorders and biochemical tests. J Inherit Metab Dis 2016; 39:173-88. [PMID: 26689402 DOI: 10.1007/s10545-015-9903-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 11/06/2015] [Accepted: 11/10/2015] [Indexed: 12/11/2022]
Abstract
Glycosaminoglycans (GAG) are long, unbranched heteropolymers with repeating disaccharide units that make up the carbohydrate moiety of proteoglycans. Six distinct classes of GAGs are recognized. Their synthesis follows one of three biosynthetic pathways, depending on the type of oligosaccharide linker they contain. Chondroitin sulfate, dermatan sulfate, heparan sulfate, and heparin sulfate contain a common tetrasaccharide linker that is O-linked to specific serine residues in core proteins. Keratan sulfate can contain three different linkers, either N-linked to asparagine or O-linked to serine/threonine residues in core proteins. Finally, hyaluronic acid does not contain a linker and is not covalently attached to a core protein. Most inborn errors of GAG biosynthesis are reported in small numbers of patients. To date, in 20 diseases, convincing evidence for pathogenicity has been presented for mutations in a total of 16 genes encoding glycosyltransferases, sulfotransferases, epimerases or transporters. GAG synthesis defects should be suspected in patients with a combination of characteristic clinical features in more than one connective tissue compartment: bone and cartilage (short long bones with or without scoliosis), ligaments (joint laxity/dislocations), and subepithelial (skin, sclerae). Some produce distinct clinical syndromes. The commonest laboratory tests used for this group of diseases are analysis of GAGs, enzyme assays, and molecular testing. In principle, GAG analysis has potential as a general first-line diagnostic test for GAG biosynthesis disorders.
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Affiliation(s)
- Florin Sasarman
- Division of Medical Genetics, Department of Pediatrics, Université de Montréal and CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montreal, QC, H3T 1C5, Canada
| | - Catalina Maftei
- Division of Medical Genetics, Department of Pediatrics, Université de Montréal and CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montreal, QC, H3T 1C5, Canada
| | - Philippe M Campeau
- Division of Medical Genetics, Department of Pediatrics, Université de Montréal and CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montreal, QC, H3T 1C5, Canada
| | - Catherine Brunel-Guitton
- Division of Medical Genetics, Department of Pediatrics, Université de Montréal and CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montreal, QC, H3T 1C5, Canada
| | - Grant A Mitchell
- Division of Medical Genetics, Department of Pediatrics, Université de Montréal and CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montreal, QC, H3T 1C5, Canada
| | - Pierre Allard
- Division of Medical Genetics, Department of Pediatrics, Université de Montréal and CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montreal, QC, H3T 1C5, Canada.
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Wiese S, Faissner A. The role of extracellular matrix in spinal cord development. Exp Neurol 2015; 274:90-9. [DOI: 10.1016/j.expneurol.2015.05.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 05/13/2015] [Accepted: 05/25/2015] [Indexed: 01/06/2023]
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