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Han P, Tang J, Xu X, Meng P, Wu K, Sun B, Song X. Identification of the grass carp interleukin-23 receptor and its proinflammatory role in intestinal inflammation. Int J Biol Macromol 2024; 265:130946. [PMID: 38521334 DOI: 10.1016/j.ijbiomac.2024.130946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/14/2024] [Accepted: 03/14/2024] [Indexed: 03/25/2024]
Abstract
The interleukin 23 receptor (IL-23R) is associated with a variety of inflammatory diseases in humans and other mammals. However, whether IL-23R is involved in inflammatory diseases in teleost fish is less understood. Thus, to investigate the potential involvement of IL-23R in fish inflammatory diseases, the full-length cDNA of IL-23R from grass carp Ctenopharyngodon idella was cloned and used to generate a recombinant protein (rgcIL-23R) containing the extracellular domain of IL-23R, against which a polyclonal antibody (rgcIL-23R pAb) was then developed. qPCR analysis revealed that IL-23R mRNA was significantly upregulated in most grass carp tissues in response to infection with Gram-negative Aeromonas hydrophila. Treatment with rgcIL-23R significantly induced IL-17A/F1 expression in C. idella kidney (CIK) cells. By contrast, knockdown of IL-23R caused significant decreases in IL-23R, STAT3, and IL-17N expression in CIK cells after lipopolysaccharide (LPS) stimulation. Similarly, rgcIL-23R pAb treatment effectively inhibited the LPS-induced increase in the expression of IL-23 subunit genes and those of the IL-23/IL-17 pathway in CIK cells. Furthermore, intestinal symptoms identical to those caused by A. hydrophila were induced by anal intubation with rgcIL-23R, but suppressed by rgcIL-23R pAb. Therefore, these results suggest that IL-23R has a crucial role in the regulation of intestinal inflammation and, thus, is a promising target for controlling inflammatory diseases in farmed fish.
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Affiliation(s)
- Panpan Han
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Jian Tang
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Xufang Xu
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Pengkun Meng
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Kang Wu
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Bingyao Sun
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China.
| | - Xuehong Song
- School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, Jiangsu Province, China.
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2
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Yuan N, Yu G, Liu D, Wang X, Zhao L. An emerging role of interleukin-23 in rheumatoid arthritis. Immunopharmacol Immunotoxicol 2019; 41:185-191. [PMID: 31072166 DOI: 10.1080/08923973.2019.1610429] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune, chronic inflammatory disease and is characterized by destruction of the articular cartilage. A number of pro-inflammatory cytokines work sequentially and in concert with one another to induce the development of RA. IL-23, a member of IL-12 family, is composed of p19 and p40 subunits and it interacts with IL-23 receptor complex to trigger plethora of biochemical actions. A number of preclinical studies have shown the role of IL-23 in the development of RA in rodents. IL-23 receptor signaling is primarily linked to the activation of JAK-STAT, tyrosine kinase 2, NF-kB, and retinoic acid receptor-related orphan receptors. IL-23 produces its osteoclastogenic effects, mainly through IL-17 and Th17 cells suggesting the importance of IL-23/IL-17/Th17 in the joint inflammation and destruction in RA. Monoclonal antibodies targeted against IL-23, including tildrakizumab and guselkumab have been developed and evaluated in clinical trials. However, there are very limited clinical studies regarding the use of IL-23 modulators in RA patients. The present review discusses the different aspects of IL-23 including its structural features, signal transduction pathway, preclinical, and clinical role in RA.
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Affiliation(s)
- Na Yuan
- a Department of Rheumatology , The Affiliated Hospital to Changchun University of Chinese Medicine , Changchun , China
| | - Guimei Yu
- a Department of Rheumatology , The Affiliated Hospital to Changchun University of Chinese Medicine , Changchun , China
| | - Di Liu
- a Department of Rheumatology , The Affiliated Hospital to Changchun University of Chinese Medicine , Changchun , China
| | - Xiancheng Wang
- b Department of Cardiology , The Affiliated Hospital to Changchun University of Chinese Medicine , Changchun , China
| | - Ling Zhao
- c Department of Rheumatology , The First Hospital of Jilin University , Changchun , China
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3
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Generation and characterization of a potent fully human monoclonal antibody against the interleukin-23 receptor. Eur J Pharmacol 2018; 828:89-96. [DOI: 10.1016/j.ejphar.2018.03.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 03/22/2018] [Accepted: 03/23/2018] [Indexed: 02/08/2023]
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4
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Bloch Y, Bouchareychas L, Merceron R, Składanowska K, Van den Bossche L, Detry S, Govindarajan S, Elewaut D, Haerynck F, Dullaers M, Adamopoulos IE, Savvides SN. Structural Activation of Pro-inflammatory Human Cytokine IL-23 by Cognate IL-23 Receptor Enables Recruitment of the Shared Receptor IL-12Rβ1. Immunity 2018; 48:45-58.e6. [PMID: 29287995 PMCID: PMC5773378 DOI: 10.1016/j.immuni.2017.12.008] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 10/15/2017] [Accepted: 12/05/2017] [Indexed: 01/13/2023]
Abstract
Interleukin-23 (IL-23), an IL-12 family cytokine, plays pivotal roles in pro-inflammatory T helper 17 cell responses linked to autoimmune and inflammatory diseases. Despite intense therapeutic targeting, structural and mechanistic insights into receptor complexes mediated by IL-23, and by IL-12 family members in general, have remained elusive. We determined a crystal structure of human IL-23 in complex with its cognate receptor, IL-23R, and revealed that IL-23R bound to IL-23 exclusively via its N-terminal immunoglobulin domain. The structural and functional hotspot of this interaction partially restructured the helical IL-23p19 subunit of IL-23 and restrained its IL-12p40 subunit to cooperatively bind the shared receptor IL-12Rβ1 with high affinity. Together with structural insights from the interaction of IL-23 with the inhibitory antibody briakinumab and by leveraging additional IL-23:antibody complexes, we propose a mechanistic paradigm for IL-23 and IL-12 whereby cognate receptor binding to the helical cytokine subunits primes recruitment of the shared receptors via the IL-12p40 subunit.
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Affiliation(s)
- Yehudi Bloch
- Laboratory for Protein Biochemistry and Biomolecular Engineering, Department of Biochemistry and Microbiology, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, 9052 Ghent, Belgium
| | - Laura Bouchareychas
- Department of Internal Medicine, Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis, Davis, CA 95616, USA; Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children Northern California, Sacramento, CA 95817, USA
| | - Romain Merceron
- Laboratory for Protein Biochemistry and Biomolecular Engineering, Department of Biochemistry and Microbiology, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, 9052 Ghent, Belgium
| | - Katarzyna Składanowska
- Laboratory for Protein Biochemistry and Biomolecular Engineering, Department of Biochemistry and Microbiology, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, 9052 Ghent, Belgium
| | - Lien Van den Bossche
- Clinical Immunology Research Lab, Department of Pulmonary Medicine, Ghent University Hospital, 9000 Ghent, Belgium; Center for Primary Immunodeficiency, Jeffrey Modell Diagnosis and Research Centre, Ghent University Hospital, 9000 Ghent, Belgium
| | - Sammy Detry
- Laboratory for Protein Biochemistry and Biomolecular Engineering, Department of Biochemistry and Microbiology, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, 9052 Ghent, Belgium
| | - Srinath Govindarajan
- VIB-UGent Center for Inflammation Research, 9052 Ghent, Belgium; Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Ghent University Hospital, 9000 Ghent, Belgium
| | - Dirk Elewaut
- VIB-UGent Center for Inflammation Research, 9052 Ghent, Belgium; Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Ghent University Hospital, 9000 Ghent, Belgium
| | - Filomeen Haerynck
- Clinical Immunology Research Lab, Department of Pulmonary Medicine, Ghent University Hospital, 9000 Ghent, Belgium; Center for Primary Immunodeficiency, Jeffrey Modell Diagnosis and Research Centre, Ghent University Hospital, 9000 Ghent, Belgium; Department of Pediatrics, Division of Pediatric Immunology and Pulmonology, Ghent University Hospital, 9000 Ghent, Belgium
| | - Melissa Dullaers
- Clinical Immunology Research Lab, Department of Pulmonary Medicine, Ghent University Hospital, 9000 Ghent, Belgium; Center for Primary Immunodeficiency, Jeffrey Modell Diagnosis and Research Centre, Ghent University Hospital, 9000 Ghent, Belgium; Laboratory for Molecular Immunology and Inflammation, Department of Rheumatology, Ghent University Hospital, 9000 Ghent, Belgium
| | - Iannis E Adamopoulos
- Department of Internal Medicine, Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis, Davis, CA 95616, USA; Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children Northern California, Sacramento, CA 95817, USA
| | - Savvas N Savvides
- Laboratory for Protein Biochemistry and Biomolecular Engineering, Department of Biochemistry and Microbiology, Ghent University, 9052 Ghent, Belgium; VIB-UGent Center for Inflammation Research, 9052 Ghent, Belgium.
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5
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Li FF, Zhu XD, Yan P, Jin MH, Yue H, Zhang Q, Fu J, Liu SL. Characterization of variations in IL23A and IL23R genes: possible roles in multiple sclerosis and other neuroinflammatory demyelinating diseases. Aging (Albany NY) 2017; 8:2734-2746. [PMID: 27893410 PMCID: PMC5191866 DOI: 10.18632/aging.101058] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 11/07/2016] [Indexed: 01/01/2023]
Abstract
Multiple sclerosis is among the most serious inflammatory demyelinating diseases (IDD). Interleukin-23A (IL23A) regulates and coordinates the activities of immune cells by interacting with its receptor IL23R and plays key roles in the pathogenesis of immune inflammatory diseases. IDD, deemed to be a kind of autoimmune diseases, may involve IL23A in the pathogenesis. The aim of this work was to validate the hypothesized involvement of IL-23A and its receptor in IDD. We sequenced the IL-23A and IL-23R genes for 206 Chinese Han IDD patients and evaluated SNPs within or near those genes. The serum levels of IL23A in IDD participants were analyzed using ELISA. The statistical analyses were conducted using Chi-Square Tests as implemented in SPSS (version 19.0). The Hardy-Weinberg equilibrium test of the population was carried out using online software OEGE. Three variants rs2066808, rs2371494, rs11575248 in IL-23A gene and one variant rs1884444 in IL-23R gene were demonstrated to be associated with the risk of MS or other IDD diseases, and the expression level of serum IL-23A in the MS patients was also altered. We conclude that variants in IL-23A and IL-23R genes were associated with the risk of MS or other IDD diseases.
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Affiliation(s)
- Fei-Feng Li
- Systemomics Center, College of Pharmacy, and Genomics Research Center (one of the State-Province Key Laboratory of Biopharmaceutical Engineering, China), Harbin Medical University, Harbin, China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Xi-Dong Zhu
- Department of Neurology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Peng Yan
- Department of Colorectal Surgery of the Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Mei-Hua Jin
- Department of Neurology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hui Yue
- Department of Neurology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Qiong Zhang
- Department of Antibiotics, Heilongjiang province food and drug inspection testing Institute, Harbin, China
| | - Jin Fu
- Department of Neurology, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shu-Lin Liu
- Systemomics Center, College of Pharmacy, and Genomics Research Center (one of the State-Province Key Laboratory of Biopharmaceutical Engineering, China), Harbin Medical University, Harbin, China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, China.,Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Canada
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6
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Abstract
Interleukin (IL-)23 is a central cytokine controlling TH17 development. Overshooting IL-23 signaling contribute to autoimmune diseases. Moreover, GWAS studies have identified several SNPs within the IL-23 receptor, which are associated with autoimmune diseases. IL-23 is a member of the IL-12-type cytokine family and consists of IL-23p19 and p40. Within the IL-12 family, IL-12 and IL-23 share the p40 cytokine subunit and the IL-12Rβ1 as one chain of the receptor complex. For signaling, IL-23 triggers heterodimerization of IL-12Rβ1 and the IL-23R. Subsequently, signal transduction pathways including JAK/STAT, MAPK and PI3K are activated. Most studies have investigated the biological relevance of IL-23 in the development of TH17 cells and autoimmunity, whereas less is known about the molecular context of IL-23 biology. Therefore, we focused on IL-23 receptor complex assembly, signal transduction and functional relevance of IL-23R SNPs in the context of IL-23-inhibitory principles.
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7
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Snodgrass CJ, Burnham-Marusich AR, Meteer JC, Berninsone PM. Conserved ion and amino acid transporters identified as phosphorylcholine-modified N-glycoproteins by metabolic labeling with propargylcholine in Caenorhabditis elegans cells. Glycobiology 2014; 25:403-11. [PMID: 25387872 DOI: 10.1093/glycob/cwu122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Phosphorylcholine (PC) modification of proteins by pathogens has been implicated in mediating host-pathogen interactions. Parasitic nematodes synthesize PC-modified biomolecules that can modulate the host's antibody and cytokine production to favor nematode survival, contributing to long-term infections. Only two nematode PC-modified proteins (PC-proteins) have been unequivocally identified, yet discovering the protein targets of PC modification will be paramount to understanding the role(s) that this epitope plays in nematode biology. A major hurdle in the field has been the lack of techniques for selective purification of PC-proteins. The nonparasitic nematode Caenorhabditis elegans expresses PC-modified N-linked glycans, offering an attractive model to study the biology of PC-modification. We developed a robust method to identify PC-proteins by metabolic labeling of primary embryonic C. elegans cells with propargylcholine, an alkyne-modified choline analog. Cu(I)-catalyzed cycloaddition with biotin-azide enables streptavidin purification and subsequent high-throughput LC-MS identification of propargyl-labeled proteins. All proteins identified using stringent criteria are known or predicted to be membrane or secreted proteins, consistent with the model of a Golgi-resident, putative PC-transferase. Of the 55 PC-N-glycosylation sites reported, 33 have been previously observed as N-glycosylation sites in high-throughput screens of C. elegans. Several identified PC-proteins are nematode-specific proteins, but 10 of the PC-proteins are widely conserved ion transporters and amino acid transporters, while eight are conserved proteins involved in synaptic function. This finding suggests a functional role for PC-modification beyond immunomodulation. The approach presented in this study provides a method to identify PC-proteins in C. elegans and related nematodes.
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Affiliation(s)
| | | | - John C Meteer
- Department of Biology, University of Nevada, Reno, NV 89557, USA
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8
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Schröder J, Moll JM, Baran P, Grötzinger J, Scheller J, Floss DM. Non-canonical interleukin 23 receptor complex assembly: p40 protein recruits interleukin 12 receptor β1 via site II and induces p19/interleukin 23 receptor interaction via site III. J Biol Chem 2014; 290:359-70. [PMID: 25371211 DOI: 10.1074/jbc.m114.617597] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
IL-23, composed of the cytokine subunit p19 and the soluble α receptor subunit p40, binds to a receptor complex consisting of the IL-23 receptor (IL-23R) and the IL-12 receptor β1 (IL-12Rβ1). Complex formation was hypothesized to follow the "site I-II-III" architectural paradigm, with site I of p19 being required for binding to p40, whereas sites II and III of p19 mediate binding to IL-12Rβ1 and IL-23R, respectively. Here we show that the binding mode of p19 to p40 and of p19 to IL-23R follow the canonical site I and III paradigm but that interaction of IL-23 to IL-12Rβ1 is independent of site II in p19. Instead, binding of IL-23 to the cytokine binding module of IL-12Rβ1 is mediated by domains 1 and 2 of p40 via corresponding site II amino acids of IL-12Rβ1. Moreover, domains 2 and 3 of p40 were sufficient for complex formation with p19 and to induce binding of p19 to IL-23R. The Fc-tagged fusion protein of p40_D2D3/p19 did, however, not act as a competitive IL-23 antagonist but, at higher concentrations, induced proliferation via IL-23R but independent of IL-12Rβ1. On the basis of our experimental validation, we propose a non-canonical topology of the IL-23·IL-23R·IL-12Rβ1 complex. Furthermore, our data help to explain why p40 is an antagonist of IL-23 and IL-12 signaling and show that site II of p19 is dispensable for IL-23 signaling.
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Affiliation(s)
- Jutta Schröder
- From the Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany and
| | - Jens M Moll
- From the Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany and
| | - Paul Baran
- From the Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany and
| | - Joachim Grötzinger
- the Institute of Biochemistry, Medical Faculty, Christian Albrechts University, 24098 Kiel, Germany
| | - Jürgen Scheller
- From the Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany and
| | - Doreen M Floss
- From the Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany and
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9
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Wang B, Tsybovsky Y, Palczewski K, Chance MR. Reliable determination of site-specific in vivo protein N-glycosylation based on collision-induced MS/MS and chromatographic retention time. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2014; 25:729-41. [PMID: 24549892 PMCID: PMC3988243 DOI: 10.1007/s13361-013-0823-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 12/23/2013] [Accepted: 12/23/2013] [Indexed: 05/12/2023]
Abstract
Site-specific glycopeptide mapping for simultaneous glycan and peptide characterization by MS is difficult because of the heterogeneity and diversity of glycosylation in proteins and the lack of complete fragmentation information for either peptides or glycans with current fragmentation technologies. Indeed, multiple peptide and glycan combinations can readily match the same mass of glycopeptides even with mass errors less than 5 ppm providing considerably ambiguity and analysis of complex mixtures of glycopeptides becomes quite challenging in the case of large proteins. Here we report a novel strategy to reliably determine site-specific N-glycosylation mapping by combining collision-induced dissociation (CID)-only fragmentation with chromatographic retention times of glycopeptides. This approach leverages an experimental pipeline with parallel analysis of glyco- and deglycopeptides. As the test case we chose ABCA4, a large integral membrane protein with 16 predicted sites for N-glycosylation. Taking advantage of CID features such as high scan speed and high intensity of fragment ions together combined with the retention times of glycopeptides to conclusively identify the non-glycolytic peptide from which the glycopeptide was derived, we obtained virtually complete information about glycan compositions and peptide sequences, as well as the N-glycosylation site occupancy and relative abundances of each glycoform at specific sites for ABCA4. The challenges provided by this example provide guidance in analyzing complex relatively pure glycoproteins and potentially even more complex glycoprotein mixtures.
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Affiliation(s)
- Benlian Wang
- Center for Proteomics and Bioinformatics, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Yaroslav Tsybovsky
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Krzysztof Palczewski
- Center for Proteomics and Bioinformatics, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, United States
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Mark R. Chance
- Center for Proteomics and Bioinformatics, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, United States
- To whom correspondence may be addressed: Mark R. Chance, Case Center for Proteomics and Bioinformatics, School of Medicine, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH 44106-4965. Tel.: 216-368-4406; Fax: 216-368-3812;
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10
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Thannhauser TW, Shen M, Sherwood R, Howe K, Fish T, Yang Y, Chen W, Zhang S. A workflow for large-scale empirical identification of cell wall N-linked glycoproteins of tomato (Solanum lycopersicum) fruit by tandem mass spectrometry. Electrophoresis 2013; 34:2417-31. [PMID: 23580464 PMCID: PMC4545257 DOI: 10.1002/elps.201200656] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 01/11/2013] [Accepted: 01/24/2013] [Indexed: 11/09/2022]
Abstract
Glycosylation is a common PTM of plant proteins that impacts a large number of important biological processes. Nevertheless, the impacts of differential site occupancy and the nature of specific glycoforms are obscure. Historically, characterization of glycoproteins has been difficult due to the distinct physicochemical properties of the peptidyl and glycan moieties, the variable and dynamic nature of the glycosylation process, their heterogeneous nature, and the low relative abundance of each glycoform. In this study, we explore a new pipeline developed for large-scale empirical identification of N-linked glycoproteins of tomato fruit as part of our ongoing efforts to characterize the tomato secretome. The workflow presented involves a combination of lectin affinity, tryptic digestion, ion-pairing HILIC, and precursor ion-driven data-dependent MS/MS analysis with a script to facilitate the identification and characterization of occupied N-linked glycosylation sites. A total of 212 glycoproteins were identified in this study, in which 26 glycopeptides from 24 glycoproteins were successfully characterized in just one HILIC fraction. Further precursor ion discovery-based MS/MS and deglycosylation followed by high accuracy and resolution MS analysis were used to confirm the glycosylation sites and determine site occupancy rates. The workflow reported is robust and capable of producing large amounts of empirical data involving N-linked glycosylation sites and their associated glycoforms.
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Affiliation(s)
- Theodore W. Thannhauser
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY
| | - Miaoqing Shen
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY
| | - Robert Sherwood
- Institute for Biotechnology and Life Science Technologies, Cornell University, Ithaca, NY
| | - Kevin Howe
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY
| | - Tara Fish
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY
| | - Yong Yang
- Robert W. Holley Center for Agriculture and Health, USDA-ARS, Cornell University, Ithaca, NY
| | - Wei Chen
- Institute for Biotechnology and Life Science Technologies, Cornell University, Ithaca, NY
| | - Sheng Zhang
- Institute for Biotechnology and Life Science Technologies, Cornell University, Ithaca, NY
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11
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Zhu F, Lee S, Valentine SJ, Reilly JP, Clemmer DE. Mannose7 glycan isomer characterization by IMS-MS/MS analysis. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2012; 23:2158-66. [PMID: 23055077 PMCID: PMC3515714 DOI: 10.1007/s13361-012-0491-y] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 09/04/2012] [Accepted: 09/04/2012] [Indexed: 05/11/2023]
Abstract
The isomers of the Man(7)GlcNAc(2) glycan obtained from bovine ribonuclease B have been characterized by ion mobility spectrometry-tandem mass spectrometry (IMS-MS/MS). In these experiments, [Man7 + 2Na](2+) precursors having different mobilities are selected by ion mobility spectrometry and analyzed by MS/MS techniques in an ion trap. The fragmentation spectra obtained for various precursor ions are specific, suggesting the isolation or enrichment of different glycan isomers. One fragment ion with a mass-to-charge ratio (m/z) of 903.8 is found to correspond to the loss of an internal mannose residue of a specific isomer. Extracted fragment ion drift time distributions (XFIDTDs) yield distinctive precursor ion drift time profiles indicating the existence of four separate isomers as proposed previously.
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12
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Baird AM, Leonard J, Naicker KM, Kilmartin L, O'Byrne KJ, Gray SG. IL-23 is pro-proliferative, epigenetically regulated and modulated by chemotherapy in non-small cell lung cancer. Lung Cancer 2012; 79:83-90. [PMID: 23116756 DOI: 10.1016/j.lungcan.2012.10.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 09/20/2012] [Accepted: 10/05/2012] [Indexed: 01/28/2023]
Abstract
BACKGROUND IL-23 is a member of the IL-6 super-family and plays key roles in cancer. Very little is currently known about the role of IL-23 in non-small cell lung cancer (NSCLC). METHODS RT-PCR and chromatin immunopreciptiation (ChIP) were used to examine the levels, epigenetic regulation and effects of various drugs (DNA methyltransferase inhibitors, Histone Deacetylase inhibitors and Gemcitabine) on IL-23 expression in NSCLC cells and macrophages. The effects of recombinant IL-23 protein on cellular proliferation were examined by MTT assay. Statistical analysis consisted of Student's t-test or one way analysis of variance (ANOVA) where groups in the experiment were three or more. RESULTS In a cohort of primary non-small cell lung cancer (NSCLC) tumours, IL-23A expression was significantly elevated in patient tumour samples (p < 0.05). IL-23A expression is epigenetically regulated through histone post-translational modifications and DNA CpG methylation. Gemcitabine, a chemotherapy drug indicated for first-line treatment of NSCLC also induced IL-23A expression. Recombinant IL-23 significantly increased cellular proliferation in NSCLC cell lines. CONCLUSIONS These results may therefore have important implications for treating NSCLC patients with either epigenetic targeted therapies or Gemcitabine.
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Affiliation(s)
- Anne-Marie Baird
- Thoracic Oncology Research Group, Institute of Molecular Medicine, Trinity College Dublin, Dublin, Ireland.
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13
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Du Y, Wang F, May K, Xu W, Liu H. LC–MS analysis of glycopeptides of recombinant monoclonal antibodies by a rapid digestion procedure. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 907:87-93. [DOI: 10.1016/j.jchromb.2012.09.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 08/28/2012] [Accepted: 09/03/2012] [Indexed: 11/16/2022]
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Du Y, May K, Xu W, Liu H. Detection and quantitation of afucosylated N-linked oligosaccharides in recombinant monoclonal antibodies using enzymatic digestion and LC-MS. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2012; 23:1241-1249. [PMID: 22569911 DOI: 10.1007/s13361-012-0397-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 04/09/2012] [Accepted: 04/18/2012] [Indexed: 05/31/2023]
Abstract
The presence of N-linked oligosaccharides in the CH2 domain has a significant impact on the structure, stability, and biological functions of recombinant monoclonal antibodies. The impact is also highly dependent on the specific oligosaccharide structures. The absence of core-fucose has been demonstrated to result in increased binding affinity to Fcγ receptors and, thus, enhanced antibody-dependent cellular cytotoxicity (ADCC). Therefore, a method that can specifically determine the level of oligosaccharides without the core-fucose (afucosylation) is highly desired. In the current study, recombinant monoclonal antibodies and tryptic peptides from the antibodies were digested using endoglycosidases F2 and H, which cleaves the glycosidic bond between the two primary GlcNAc residues. As a result, various oligosaccharides of either complex type or high mannose type that are commonly observed for recombinant monoclonal antibodies are converted to either GlcNAc residue only or GlcNAc with the core-fucose. The level of GlcNAc represents the sum of all afucosylated oligosaccharides, whereas the level of GlcNAc with the core-fucose represents the sum of all fucosylated oligosaccharides. LC-MS analysis of the enzymatically digested antibodies after reduction provided a quick estimate of the levels of afucosylation. An accurate determination of the level of afucosylation was obtained by LC-MS analysis of glycopeptides after trypsin digestion.
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Affiliation(s)
- Yi Du
- Merck Research Laboratories, 1011 Morris Ave, Union, NJ 07083, USA
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Wang H, Zhang W, Zhao J, Zhang L, Liu M, Yan G, Yao J, Yu H, Yang P. N-Glycosylation pattern of recombinant human CD82 (KAI1), a tumor-associated membrane protein. J Proteomics 2011; 75:1375-85. [PMID: 22123080 DOI: 10.1016/j.jprot.2011.11.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Revised: 11/09/2011] [Accepted: 11/12/2011] [Indexed: 11/19/2022]
Abstract
The membrane glycoprotein CD82 (KAI1) has attracted increasing attention as a suppressor of cell migration, related tumor invasion, as well as metastasis. The glycosylation of CD82 has been shown to be involved in a correlative cell adhesion and motility. However, the N-glycosylation pattern of CD82 has not been described yet. In the current study, a detailed characterization of the recombinant human CD82 N-linked glycosylation pattern was conducted by employing an integrative proteomic and glycomic approach, including glycosidase and protease digestions, glycan permethylation, MS analyses, site-directed mutagenesis, and lectin blots. The results reveal three N-glycosylation sites, and further demonstrate a putative glycosylation site at Asn(157) for the first time. A highly heterogeneous pattern of N-linked glycans is described, which express distinct carbohydrate epitopes, such as bisecting N-acetylglucosamine, (α-2,6) N-acetylneuraminic acid, and core fucose. These epitopes are highly associated with various biological functions, including cell adhesion and cancer metastasis, and can possibly influence the anti-cancer inhibition ability of CD82.
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Affiliation(s)
- Hong Wang
- Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
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