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Shkunnikova S, Mijakovac A, Sironic L, Hanic M, Lauc G, Kavur MM. IgG glycans in health and disease: Prediction, intervention, prognosis, and therapy. Biotechnol Adv 2023; 67:108169. [PMID: 37207876 DOI: 10.1016/j.biotechadv.2023.108169] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/21/2023]
Abstract
Immunoglobulin (IgG) glycosylation is a complex enzymatically controlled process, essential for the structure and function of IgG. IgG glycome is relatively stable in the state of homeostasis, yet its alterations have been associated with aging, pollution and toxic exposure, as well as various diseases, including autoimmune and inflammatory diseases, cardiometabolic diseases, infectious diseases and cancer. IgG is also an effector molecule directly involved in the inflammation processes included in the pathogenesis of many diseases. Numerous recently published studies support the idea that IgG N-glycosylation fine-tunes the immune response and plays a significant role in chronic inflammation. This makes it a promising novel biomarker of biological age, and a prognostic, diagnostic and treatment evaluation tool. Here we provide an overview of the current state of knowledge regarding the IgG glycosylation in health and disease, and its potential applications in pro-active prevention and monitoring of various health interventions.
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Affiliation(s)
- Sofia Shkunnikova
- Genos Glycoscience Research Laboratory, Borongajska cesta 83H, Zagreb, Croatia
| | - Anika Mijakovac
- University of Zagreb, Faculty of Science, Department of Biology, Horvatovac 102a, Zagreb, Croatia
| | - Lucija Sironic
- Genos Glycoscience Research Laboratory, Borongajska cesta 83H, Zagreb, Croatia
| | - Maja Hanic
- Genos Glycoscience Research Laboratory, Borongajska cesta 83H, Zagreb, Croatia
| | - Gordan Lauc
- Genos Glycoscience Research Laboratory, Borongajska cesta 83H, Zagreb, Croatia; University of Zagreb, Faculty of Pharmacy and Biochemistry, Ulica Ante Kovačića 1, Zagreb, Croatia
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Sengupta S, Bhattacharya N, Tripathi A. Increased CRP, anti-CCP antibody, IL-2R, COMP levels in prognosis of post-chikungunya chronic arthritis and protective role of their specific genotypes against arthritic manifestation. Virus Res 2023; 323:198998. [PMID: 36356677 PMCID: PMC10194367 DOI: 10.1016/j.virusres.2022.198998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/21/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022]
Abstract
Chikungunya infection leads to acute/chronic polyarthritis/polyarthralgia causing long-term morbidity among patients. Prognosis of post-chikungunya chronic arthritis (PCA) is of utmost necessity for proper disease management. Arthritic and hepatic biomarkers were evaluated among chikungunya patients without arthritis, with acute arthritis and with post-chikungunya chronic arthritis in the study. Serum levels of arthritic [CRP (C-reactive protein), anti cyclic-citrullinated-peptide (anti-CCP) antibody, soluble interleukin-2 receptor (sIL-2R), cartilage oligomeric matrix protein (COMP)] and hepatic [ALT (alanine aminotransferase), AST (aspartate aminotransferase), ALP (alkaline phosphatase), albumin and bilirubin] biomarkers of 167 chikungunya positive patients were determined by sandwich-ELISA/immunoturbidimetry/auto-analyser. 167 chikungunya-patients and 102 healthy controls were genotyped to understand role of CRP-rs3093059/rs3091244, IL-2R-rs743777 and COMP-rs144778694 polymorphisms towards chikungunya virus (CHIKV) infectivity and arthralgic manifestation. CRP, anti-CCP antibody, IL-2R and COMP levels significantly increased among PCA patients. Concentrations of AST, ALT, AST/ALT-ratio, bilirubin and ALP increased among arthritic chikungunya patients. Principal component analysis differentiated PCA groups from acute (AA) and non-arthritic groups. Patients with IL-2R-rs743777-GA, G-allele and COMP-rs144778694-GA genotypes were susceptible to chikungunya infection. Moreover, patients with CRP-rs3093059-CT, rs3091244-TT, IL-2R-rs743777-GA and COMP-rs144778694-AA genotypes were significantly protected from arthralgia, whereas, COMP-rs144778694-GA genotype was susceptible towards it. Patients with certain genotypes of CRP, IL-2R and COMP demonstrated significantly higher biomarker serum-levels among patients suffering from AA with/without PCA. Thus, both serum biomarker levels and polymorphic genotypes of infected patients play decisive role in development of PCA.
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Affiliation(s)
- Siddhartha Sengupta
- Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, 108, C. R. Avenue, Kolkata, West Bengal 700073, India
| | - Nemai Bhattacharya
- Department of Microbiology, Virus unit, Calcutta School of Tropical Medicine, 108, C. R. Avenue, Kolkata, West Bengal 700073, India
| | - Anusri Tripathi
- Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, 108, C. R. Avenue, Kolkata, West Bengal 700073, India.
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Krištić J, Lauc G, Pezer M. Immunoglobulin G glycans - Biomarkers and molecular effectors of aging. Clin Chim Acta 2022; 535:30-45. [PMID: 35970404 DOI: 10.1016/j.cca.2022.08.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/04/2022] [Accepted: 08/04/2022] [Indexed: 11/28/2022]
Abstract
Immunoglobulin G (IgG) antibodies are post-translationally modified by the addition of complex carbohydrate molecules - glycans, which have profound effects on the IgG function, most significantly as modulators of its inflammatory capacity. Therefore, it is not surprising that the changes in IgG glycosylation pattern are associated with various physiological states and diseases, including aging and age-related diseases. Importantly, within the inflammaging concept, IgG glycans are considered not only biomarkers but one of the molecular effectors of the aging process. The exact mechanism by which they exert their function, however, remains unknown. In this review, we list and comment on, to our knowledge, all studies that examined changes in IgG glycosylation during aging in humans. We focus on the information obtained from studies on general population, but we also cover the insights obtained from studies of long-lived individuals and people with age-related diseases. We summarize the current knowledge on how levels of different IgG glycans change with age (i.e., the extent and direction of the change with age) and discuss the potential mechanisms and possible functional roles of changes in IgG glycopattern that accompany aging.
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Affiliation(s)
| | - Gordan Lauc
- Genos Glycoscience Research Laboratory, Zagreb, Croatia; Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | - Marija Pezer
- Genos Glycoscience Research Laboratory, Zagreb, Croatia.
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Flevaris K, Kontoravdi C. Immunoglobulin G N-glycan Biomarkers for Autoimmune Diseases: Current State and a Glycoinformatics Perspective. Int J Mol Sci 2022; 23:ijms23095180. [PMID: 35563570 PMCID: PMC9100869 DOI: 10.3390/ijms23095180] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 02/04/2023] Open
Abstract
The effective treatment of autoimmune disorders can greatly benefit from disease-specific biomarkers that are functionally involved in immune system regulation and can be collected through minimally invasive procedures. In this regard, human serum IgG N-glycans are promising for uncovering disease predisposition and monitoring progression, and for the identification of specific molecular targets for advanced therapies. In particular, the IgG N-glycome in diseased tissues is considered to be disease-dependent; thus, specific glycan structures may be involved in the pathophysiology of autoimmune diseases. This study provides a critical overview of the literature on human IgG N-glycomics, with a focus on the identification of disease-specific glycan alterations. In order to expedite the establishment of clinically-relevant N-glycan biomarkers, the employment of advanced computational tools for the interpretation of clinical data and their relationship with the underlying molecular mechanisms may be critical. Glycoinformatics tools, including artificial intelligence and systems glycobiology approaches, are reviewed for their potential to provide insight into patient stratification and disease etiology. Challenges in the integration of such glycoinformatics approaches in N-glycan biomarker research are critically discussed.
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Sołkiewicz K, Krotkiewski H, Jędryka M, Czekański A, Kratz EM. The Alterations of Serum IgG Fucosylation as a Potential Additional New Diagnostic Marker in Advanced Endometriosis. J Inflamm Res 2022; 15:251-266. [PMID: 35058701 PMCID: PMC8764169 DOI: 10.2147/jir.s341906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 12/03/2021] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Endometriosis is an inflammatory disease leading to the growth of endometrial-like tissue outside of the uterus, which affects approximately 10% of young women of reproductive potential. The diagnosis of this disease is difficult, often invasive and time-consuming, therefore non-invasive diagnostic methods are strongly desirable in endometriosis detection. The aim of our project was to investigate whether any associations exist between the expression of serum IgG fucosylation and advanced stages of endometriosis. We were also interested in whether native serum IgG (s-IgG) fucosylation analysis, without prior IgG isolation, could provide a panel of parameters helpful in non-invasive diagnostics of advanced endometriosis. METHODS IgG fucosylation was examined using a lectin-ELISA test with fucose-specific lectins: AAL and LCA, specific for core fucose α1,6-linked, as well as LTA and UEA which recognize α1,3- and α1,2-linked fucose, respectively. RESULTS ROC curve and cluster analysis showed s-IgG reactivities with the panel of fucose-specific lectins AAL, LCA and LTA. CONCLUSION s-IgG reactivity with the panel of fucose-specific lectins AAL, LCA and LTA can be taken into account as a useful diagnostic and clinical tool to differentiate women with advanced endometriosis. Moreover, it has been shown that the analysis of native IgG fucosylation directly in serum, without prior time-consuming, expensive IgG isolation, is sufficient to distinguish advanced stages of endometriosis from a control group of healthy women.
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Affiliation(s)
- Katarzyna Sołkiewicz
- Department of Laboratory Diagnostics, Division of Laboratory Diagnostics, Faculty of Pharmacy, Wroclaw Medical University, Wroclaw, 50-556, Poland
| | - Hubert Krotkiewski
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, 53-114, Poland
| | - Marcin Jędryka
- Department of Oncology, Gynecological Oncology Clinic, Faculty of Medicine, Wroclaw Medical University, Wroclaw, 53-413, Poland
- Department of Oncological Gynecology, Wroclaw Comprehensive Cancer Center, Wroclaw, 53-413, Poland
| | - Andrzej Czekański
- Department of Oncology, Gynecological Oncology Clinic, Faculty of Medicine, Wroclaw Medical University, Wroclaw, 53-413, Poland
- Department of Oncological Gynecology, Wroclaw Comprehensive Cancer Center, Wroclaw, 53-413, Poland
| | - Ewa Maria Kratz
- Department of Laboratory Diagnostics, Division of Laboratory Diagnostics, Faculty of Pharmacy, Wroclaw Medical University, Wroclaw, 50-556, Poland
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Ashwood HE, Ashwood C, Schmidt AP, Gundry RL, Hoffmeister KM, Anani WQ. Characterization and statistical modeling of glycosylation changes in sickle cell disease. Blood Adv 2021; 5:1463-73. [PMID: 33666655 DOI: 10.1182/bloodadvances.2020003376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 01/20/2021] [Indexed: 12/20/2022] Open
Abstract
Sickle cell disease is an inherited genetic disorder that causes anemia, pain crises, organ infarction, and infections in 13 million people worldwide. Previous studies have revealed changes in sialic acid levels associated with red blood cell sickling and showed that stressed red blood cells bare surface-exposed clustered terminal mannose structures mediating hemolysis, but detailed glycan structures and anti-glycan antibodies in sickle cell disease remain understudied. Here, we compiled results obtained through lectin arrays, glycan arrays, and mass spectrometry to interrogate red blood cell glycoproteins and glycan-binding proteins found in the plasma of healthy individuals and patients with sickle cell disease and sickle cell trait. Lectin arrays and mass spectrometry revealed an increase in α2,6 sialylation and a decrease in α2,3 sialylation and blood group antigens displayed on red blood cells. Increased binding of proteins to immunogenic asialo and sialyl core 1, Lewis A, and Lewis Y structures was observed in plasma from patients with sickle cell disease, suggesting a heightened anti-glycan immune response. Data modeling affirmed glycan expression and plasma protein binding changes in sickle cell disease but additionally revealed further changes in ABO blood group expression. Our data provide detailed insights into glycan changes associated with sickle cell disease and refer glycans as potential therapeutic targets.
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Martin KC, Tricomi J, Corzana F, García-García A, Ceballos-Laita L, Hicks T, Monaco S, Angulo J, Hurtado-Guerrero R, Richichi B, Sackstein R. Fucosyltransferase-specific inhibition via next generation of fucose mimetics. Chem Commun (Camb) 2021; 57:1145-1148. [PMID: 33411866 DOI: 10.1039/d0cc04847j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ability to custom-modify cell surface glycans holds great promise for treatment of a variety of diseases. We propose a glycomimetic of l-fucose that markedly inhibits the creation of sLeX by FTVI and FTVII, but has no effect on creation of LeX by FTIX. Our findings thus indicate that selective suppression of sLex display can be achieved, and STD-NMR studies surprisingly reveal that the mimetic does not compete with GDP-fucose at the enzymatic binding site.
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Affiliation(s)
- Kyle C Martin
- Department of Translational Medicine, Translational Glycobiology Institute, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA. and Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA and Program of Excellence in Glycoscience, Harvard Medical School, Boston, MA 02115, USA
| | - Jacopo Tricomi
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, FI, Italy.
| | - Francisco Corzana
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, 26006 Logroño, Spain
| | - Ana García-García
- Institute of Biocomputation and Physics of Complex Systems (BIFI), University of Zaragoza, Mariano Esquillor s/n, Campus Rio Ebro, Edificio I + D, Zaragoza, Spain
| | - Laura Ceballos-Laita
- Institute of Biocomputation and Physics of Complex Systems (BIFI), University of Zaragoza, Mariano Esquillor s/n, Campus Rio Ebro, Edificio I + D, Zaragoza, Spain
| | - Thomas Hicks
- School of Pharmacy, University of East Anglia, Norwich Research Park, NR47TJ, Norwich, UK
| | - Serena Monaco
- School of Pharmacy, University of East Anglia, Norwich Research Park, NR47TJ, Norwich, UK
| | - Jesus Angulo
- School of Pharmacy, University of East Anglia, Norwich Research Park, NR47TJ, Norwich, UK and Departamento de Química Orgánica, Universidad de Sevilla, C/Prof. García González, 1, 41012 Sevilla, Spain and Instituto de Investigaciones Químicas (CSIC-US), Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Ramon Hurtado-Guerrero
- Institute of Biocomputation and Physics of Complex Systems (BIFI), University of Zaragoza, Mariano Esquillor s/n, Campus Rio Ebro, Edificio I + D, Zaragoza, Spain and Fundación ARAID, 50018, Zaragoza, Spain and Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, School of Dentistry, University of Copenhagen, Copenhagen, Denmark and Laboratorio de Microscopías Avanzada (LMA), University of Zaragoza, Mariano Esquillor s/n, Campus Rio Ebro, Edificio I + D, Zaragoza, Spain
| | - Barbara Richichi
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 13, 50019 Sesto Fiorentino, FI, Italy.
| | - Robert Sackstein
- Department of Translational Medicine, Translational Glycobiology Institute, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA. and Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA and Program of Excellence in Glycoscience, Harvard Medical School, Boston, MA 02115, USA
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Abstract
Changes in immunoglobulin G (IgG) glycosylation pattern have been observed in a vast array of auto- and alloimmune, infectious, cardiometabolic, malignant, and other diseases. This chapter contains an updated catalog of over 140 studies within which IgG glycosylation analysis was performed in a disease setting. Since the composition of IgG glycans is known to modulate its effector functions, it is suggested that a changed IgG glycosylation pattern in patients might be involved in disease development and progression, representing a predisposition and/or a functional effector in disease pathology. In contrast to the glycopattern of bulk serum IgG, which likely relates to the systemic inflammatory background, the glycosylation profile of antigen-specific IgG probably plays a direct role in disease pathology in several infectious and allo- and autoimmune antibody-dependent diseases. Depending on the specifics of any given disease, IgG glycosylation read-out might therefore in the future be developed into a useful clinical biomarker or a supplementary to currently used biomarkers.
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Affiliation(s)
- Marija Pezer
- Glycoscience Research Laboratory, Genos Ltd., Zagreb, Croatia.
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Abstract
Among the multiple roles played by protein glycosylation, the fine regulation of biological interactions is one of the most important. The asparagine 297 (Asn297) of IgG heavy chains is decorated by a diantennary glycan bearing a number of galactose and sialic acid residues on the branches ranging from 0 to 2. In addition, the structure can present core-linked fucose and/or a bisecting GlcNAc. In many inflammatory and autoimmune conditions, as well as in metabolic, cardiovascular, infectious, and neoplastic diseases, the IgG Asn297-linked glycan becomes less sialylated and less galactosylated, leading to increased expression of glycans terminating with GlcNAc. These conditions alter also the presence of core-fucose and bisecting GlcNAc. Importantly, similar glycomic alterations are observed in aging. The common condition, shared by the above-mentioned pathological conditions and aging, is a low-grade, chronic, asymptomatic inflammatory state which, in the case of aging, is known as inflammaging. Glycomic alterations associated with inflammatory diseases often precede disease onset and follow remission. The aberrantly glycosylated IgG glycans associated with inflammation and aging can sustain inflammation through different mechanisms, fueling a vicious loop. These include complement activation, Fcγ receptor binding, binding to lectin receptors on antigen-presenting cells, and autoantibody reactivity. The complex molecular bases of the glycomic changes associated with inflammation and aging are still poorly understood.
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Affiliation(s)
- Fabio Dall'Olio
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy.
| | - Nadia Malagolini
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
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Abstract
IgG glycosylation is currently at the forefront of both immunology and glycobiology, likely due in part to the widespread and growing use of antibodies as drugs. For over four decades, it has been recognized that the conserved N-linked glycan on asparagine 297 found within the second Ig domain of the heavy chain (CH2) that helps to comprise Fc region of IgG plays a special role in IgG structure and function. Changes in galactosylation, fucosylation and sialylation are now well-established factors, which drive differential IgG function, ranging from inhibitory/anti-inflammatory to activating complement and promoting antibody-dependent cellular cytotoxicity. Thus, if we are to truly understand how to design and deploy antibody-based drugs with maximal efficacy and evaluate proper vaccine responses from a protective and functional perspective, a deep understanding of IgG glycosylation is essential. This article is intended to provide a comprehensive review of the IgG glycosylation field and the impact glycans have on IgG function, beginning with the earliest findings over 40 years ago, in order to provide a robust foundation for moving forward.
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Affiliation(s)
- Brian A Cobb
- Department of Pathology, Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
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Tijardović M, Marijančević D, Bok D, Kifer D, Lauc G, Gornik O, Keser T. Intense Physical Exercise Induces an Anti-inflammatory Change in IgG N-Glycosylation Profile. Front Physiol 2019; 10:1522. [PMID: 31920720 PMCID: PMC6933519 DOI: 10.3389/fphys.2019.01522] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 12/03/2019] [Indexed: 12/24/2022] Open
Abstract
Exercise is known to improve many aspects of human health, including modulation of the immune system and inflammatory status. It is generally understood that exercise reduces inflammation, but there are missing links in terms of understanding the mechanisms as well as the differences between exercise modalities. N-glycosylation of immunoglobulin G (IgG) and total plasma proteins was previously shown to reflect changes in inflammatory pathways, which could provide valuable information to further clarify exercise effects. In order to further expand the understanding of the relationship between physical activity and inflammation, we examined the effect of intense exercise, in the form of repeated sprint training (RST), on IgG and total plasma proteins N-glycosylation in combination with traditionally used inflammation markers: C-reactive protein (CRP), interleukin 6 (IL-6), and leukocyte count. Twenty-nine male physical education students were separated into treatment (RST, N = 15) and control (N = 14) groups. The RST group completed a 6-week exercise protocol while the control group was instructed to refrain from organized physical activity for the duration of the study. Three blood samples were taken at different time points: prior to start of the training program, the final week of the exercise intervention (EXC), and at the end of the 4-week recovery period (REC). Following the end of the recovery period IgG N-glycosylation profiles showed anti-inflammatory changes in RST group compared to the control group, which manifested as a decrease in agalactosylated (p = 0.0473) and an increase in digalactosylated (p = 0.0473), and monosialylated (p = 0.0339) N-glycans. Plasma protein N-glycans didn’t change significantly, while traditional inflammatory markers also didn’t show significant change in inflammatory status. Observed results demonstrate the potential of intense physical exercise to reduce levels of systemic basal inflammation as well as the potential for IgG N-glycosylation to serve as a sensitive longitudinal systemic inflammation marker.
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Affiliation(s)
- Marko Tijardović
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | - Domagoj Marijančević
- Endocrinology Laboratory, Department of Oncology and Nuclear Medicine, University Hospital Centre Sestre Milosrdnice, Zagreb, Croatia
| | - Daniel Bok
- Faculty of Kinesiology, University of Zagreb, Zagreb, Croatia
| | - Domagoj Kifer
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | - Gordan Lauc
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia.,Genos Glycoscience Research Laboratory, Zagreb, Croatia
| | - Olga Gornik
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | - Toma Keser
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
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Fang Q, Ou J, Nandakumar KS. Autoantibodies as Diagnostic Markers and Mediator of Joint Inflammation in Arthritis. Mediators Inflamm 2019; 2019:6363086. [PMID: 31772505 DOI: 10.1155/2019/6363086] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 09/14/2019] [Indexed: 12/11/2022] Open
Abstract
Rheumatoid arthritis is a systemic, polygenic, and multifactorial syndrome characterized by erosive polyarthritis, damage to joint architecture, and presence of autoantibodies against several self-structures in the serum and synovial fluid. These autoantibodies (anticitrullinated protein/peptide antibodies (ACPAs), rheumatoid factors (RF), anticollagen type II antibodies, antiglucose-6 phosphate isomerase antibodies, anticarbamylated protein antibodies, and antiacetylated protein antibodies) have different characteristics, diagnostic/prognostic value, and pathological significance in RA patients. Some of these antibodies are present in the patients' serum several years before the onset of clinical disease. Various genetic and environmental factors are associated with autoantibody production against different autoantigenic targets. Both the activating and inhibitory FcγRs and the activation of different complement cascades contribute to the downstream effector functions in the antibody-mediated disease pathology. Interplay between several molecules (cytokines, chemokines, proteases, and inflammatory mediators) culminates in causing damage to the articular cartilage and bones. In addition, autoantibodies are proven to be useful disease markers for RA, and different diagnostic tools are being developed for early diagnosis of the clinical disease. Recently, a direct link was proposed between the presence of autoantibodies and bone erosion as well as in the induction of pain. In this review, the diagnostic value of autoantibodies, their synthesis and function as a mediator of joint inflammation, and the significance of IgG-Fc glycosylation are discussed.
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Gudelj I, Lauc G, Pezer M. Immunoglobulin G glycosylation in aging and diseases. Cell Immunol 2018; 333:65-79. [DOI: 10.1016/j.cellimm.2018.07.009] [Citation(s) in RCA: 206] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 07/19/2018] [Accepted: 07/19/2018] [Indexed: 01/01/2023]
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Hayes AJ, Melrose J. Glycans and glycosaminoglycans in neurobiology: key regulators of neuronal cell function and fate. Biochem J 2018; 475:2511-45. [PMID: 30115748 DOI: 10.1042/BCJ20180283] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 07/14/2018] [Accepted: 07/18/2018] [Indexed: 12/16/2022]
Abstract
The aim of the present study was to examine the roles of l-fucose and the glycosaminoglycans (GAGs) keratan sulfate (KS) and chondroitin sulfate/dermatan sulfate (CS/DS) with selected functional molecules in neural tissues. Cell surface glycans and GAGs have evolved over millions of years to become cellular mediators which regulate fundamental aspects of cellular survival. The glycocalyx, which surrounds all cells, actuates responses to growth factors, cytokines and morphogens at the cellular boundary, silencing or activating downstream signaling pathways and gene expression. In this review, we have focused on interactions mediated by l-fucose, KS and CS/DS in the central and peripheral nervous systems. Fucose makes critical contributions in the area of molecular recognition and information transfer in the blood group substances, cytotoxic immunoglobulins, cell fate-mediated Notch-1 interactions, regulation of selectin-mediated neutrophil extravasation in innate immunity and CD-34-mediated new blood vessel development, and the targeting of neuroprogenitor cells to damaged neural tissue. Fucosylated glycoproteins regulate delivery of synaptic neurotransmitters and neural function. Neural KS proteoglycans (PGs) were examined in terms of cellular regulation and their interactive properties with neuroregulatory molecules. The paradoxical properties of CS/DS isomers decorating matrix and transmembrane PGs and the positive and negative regulatory cues they provide to neurons are also discussed.
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Hu J, Wang Z, Pan Y, Ma J, Miao X, Qi X, Zhou H, Jia L. MiR-26a and miR-26b mediate osteoarthritis progression by targeting FUT4 via NF-κB signaling pathway. Int J Biochem Cell Biol 2017; 94:79-88. [PMID: 29208566 DOI: 10.1016/j.biocel.2017.12.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/24/2017] [Accepted: 12/02/2017] [Indexed: 01/12/2023]
Abstract
Osteoarthritis (OA) is the most common joint disease, characterized by articular cartilage degradation and changes in all other joint tissues. MicroRNAs (miRNAs) play an important role in mediating the main risk factors for OA. This study aimed to investigate the effect of miR-26a/26b on the proliferation and apoptosis of human chondrocytes by targeting fucosyltransferase 4 (FUT4) through NF-κB signaling pathway. We revealed the differential expression profiles of FUT4 and miR-26a/26b in the articular cartilage tissues of OA patients and normal people. The ability of miR-26a/26b to specifically interact with the 3'UTR of FUT4 was demonstrated via a luciferase reporter assay in chondrocytes. Further results showed altered levels of miR-26a/26b and FUT4 could regulate the process of IL-1β-induced extracellular matrix degradation in chondrocytes. Forced miR-26a/26b expression was able to affect chondrocytes proliferation and apoptosis, while altered expression of FUT4 in chondrocytes modulated progression upon transfection with miR-26a/26b mimic or inhibitor. In OA mice, the overexpression of miR-26a/26b by intra-articular injection significantly attenuated OA progression. In addition, regulating FUT4 expression markedly modulated the activity of NF-κB signaling pathway, and this effect could be reversed by miR-26a/26b. In short, miR-26a/-26b/FUT4/NF-κB axis may serve as a predictive biomarker and a potential therapeutic target in OA treatment.
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Affiliation(s)
- Jialei Hu
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Zi Wang
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China; Department of Sports Medicine, Dalian Municipal Central Hospital, Dalian 116033, Liaoning Province, China
| | - Yue Pan
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Jia Ma
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Xiaoyan Miao
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Xia Qi
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Huimin Zhou
- Department of Microbiology, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Li Jia
- College of Laboratory Medicine, Dalian Medical University, Dalian 116044, Liaoning Province, China.
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Plomp R, Ruhaak LR, Uh HW, Reiding KR, Selman M, Houwing-Duistermaat JJ, Slagboom PE, Beekman M, Wuhrer M. Subclass-specific IgG glycosylation is associated with markers of inflammation and metabolic health. Sci Rep 2017; 7:12325. [PMID: 28951559 DOI: 10.1038/s41598-017-12495-0] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 09/07/2017] [Indexed: 02/02/2023] Open
Abstract
This study indicates that glycosylation of immunoglobulin G, the most abundant antibody in human blood, may convey useful information with regard to inflammation and metabolic health. IgG occurs in the form of different subclasses, of which the effector functions show significant variation. Our method provides subclass-specific IgG glycosylation profiling, while previous large-scale studies neglected to measure IgG2-specific glycosylation. We analysed the plasma Fc glycosylation profiles of IgG1, IgG2 and IgG4 in a cohort of 1826 individuals by liquid chromatography-mass spectrometry. For all subclasses, a low level of galactosylation and sialylation and a high degree of core fucosylation associated with poor metabolic health, i.e. increased inflammation as assessed by C-reactive protein, low serum high-density lipoprotein cholesterol and high triglycerides, which are all known to indicate increased risk of cardiovascular disease. IgG2 consistently showed weaker associations of its galactosylation and sialylation with the metabolic markers, compared to IgG1 and IgG4, while the direction of the associations were overall similar for the different IgG subclasses. These findings demonstrate the potential of IgG glycosylation as a biomarker for inflammation and metabolic health, and further research is required to determine the additive value of IgG glycosylation on top of biomarkers which are currently used.
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Abstract
O-Linked glycosylation is a common post-translational modification that can alter the overall structure, polarity, and function of proteins. Reverse-phase (RP) chromatography is the most common chromatographic approach to analyze O-glycosylated peptides and their unmodified counterparts, even though this approach often does not provide adequate separation of these two species. Hydrophilic interaction liquid chromatography (HILIC) can be a solution to this problem, as the polar glycan interacts with the polar stationary phase and potentially offers the ability to resolve the peptide from its modified form(s). In this paper, HILIC is used to separate peptides with O-N-acetylgalactosamine (O-GalNAc), O-N-acetylglucosamine (O-GlcNAc), and O-fucose additions from their native forms, and coefficients representing the extent of hydrophilicity were derived using linear regression analysis as a means to predict the retention times of peptides with these modifications.
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Affiliation(s)
- Majors J Badgett
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602, USA; and
| | - Barry Boyes
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602, USA; and.,Advanced Materials Technology, Wilmington, Delaware 19810, USA
| | - Ron Orlando
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602, USA; and
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18
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Gińdzieńska-Sieśkiewicz E, Radziejewska I, Domysławska I, Klimiuk PA, Sulik A, Rojewska J, Gabryel-Porowska H, Sierakowski S. Changes of glycosylation of IgG in rheumatoid arthritis patients treated with methotrexate. Adv Med Sci 2016; 61:193-7. [PMID: 26876088 DOI: 10.1016/j.advms.2015.12.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Revised: 10/14/2015] [Accepted: 12/28/2015] [Indexed: 11/20/2022]
Abstract
PURPOSE In patients with active rheumatoid arthritis (RA) decrease of galactosylation is correlated with disease activity. The aim of our study was to evaluate an effect of methotrexate therapy on glycosylation disturbances of IgG in RA patients. MATERIALS/METHODS IgG glycosylation in 40 patients with active RA treated with methotrexate for 12 months prior to and after treatment were compared. The control group consisted of 20 healthy volunteers. IgG glycosylation was assessed using biotinylated lectins and immunosorbent ELISA assay. For galactose specificity Datura stramonium lectin (DSA), for sialic acid Sambucus nigra (SNA) and Maackia amurensis (MAA) and for fucose residue Areulia auranta (AAA) lectins were used. RESULTS In RA-cases N-glycan galactosylation and sialylation of IgG before treatment were significantly lower than in healthy subjects (for DSA, MAA lectins p<0.001 and SNA p<0.05). Significant increase of IgG galactosylation and sialylation in RA patients after therapy (for DSA, MAA and SNA lectin p<0.05) was detected. Moreover the glycosylation disturbances of N-glycan IgG were strongly associated with changes of disease activity based on disease activity score. For fucose residues significantly higher absorbency of AAA lectin in RA patients before treatment was observed compared to control subjects (p<0.05) and slightly, not significantly decreased after MTX therapy. CONCLUSIONS Defect of galactosylation of IgG in RA patients is a useful marker of disease activity that may be used for the assessment of therapy effectiveness. The role of IgG fucosylation and sialylation in RA pathogenesis has still to be determined.
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19
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Amin MA, Campbell PL, Ruth JH, Isozaki T, Rabquer BJ, Alex Stinson W, O'Brien M, Edhayan G, Ohara RA, Vargo J, Domino SE, Koch AE. A key role for Fut1-regulated angiogenesis and ICAM-1 expression in K/BxN arthritis. Ann Rheum Dis 2015; 74:1459-66. [PMID: 24665114 DOI: 10.1136/annrheumdis-2013-204814] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 02/28/2014] [Indexed: 11/04/2022]
Abstract
OBJECTIVES Angiogenesis contributes to the pathogenesis of rheumatoid arthritis. Fucosyltransferases (Futs) are involved in angiogenesis and tumour growth. Here, we examined the role of Fut1 in angiogenesis and K/BxN serum transfer arthritis. METHODS We examined Fut1 expression in human dermal microvascular endothelial cells (HMVECs) by quantitative PCR. We performed a number of angiogenesis assays to determine the role of Fut1 using HMVECs, Fut1 null (Fut1(-/-)), and wild type (wt) endothelial cells (ECs) and mice. K/BxN serum transfer arthritis was performed to determine the contribution of Fut1-mediated angiogenesis in Fut1(-/-) and wt mice. A static adhesion assay was implemented with RAW264.7 (mouse macrophage cell line) and mouse ECs. Quantitative PCR, immunofluorescence and flow cytometry were performed with Fut1(-/-) and wt ECs for adhesion molecule expression. RESULTS Tumour necrosis factor-α induced Fut1 mRNA and protein expression in HMVECs. HMVECs transfected with Fut1 antisense oligodeoxynucleotide and Fut1(-/-) ECs formed significantly fewer tubes on Matrigel. Fut1(-/-) mice had reduced angiogenesis in Matrigel plug and sponge granuloma angiogenesis assays compared with wt mice. Fut1(-/-) mice were resistant to K/BxN serum transfer arthritis and had decreased angiogenesis and leucocyte ingress into inflamed joints. Adhesion of RAW264.7 cells to wt mouse ECs was significantly reduced when Fut1 was lacking. Fut1(-/-) ECs had decreased intercellular adhesion molecule-1 (ICAM-1) expression at mRNA and protein levels compared with wt ECs. ICAM-1 was also decreased in Fut1(-/-) arthritic ankle cryosections compared with wt ankles. CONCLUSIONS Fut1 plays an important role in regulating angiogenesis and ICAM-1 expression in inflammatory arthritis.
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MESH Headings
- Animals
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/pathology
- Arthritis, Experimental/physiopathology
- Cell Adhesion/physiology
- Cell Line
- Cells, Cultured
- Disease Models, Animal
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Fucosyltransferases/deficiency
- Fucosyltransferases/genetics
- Fucosyltransferases/physiology
- Humans
- Intercellular Adhesion Molecule-1/metabolism
- Macrophages/drug effects
- Macrophages/metabolism
- Macrophages/pathology
- Mice
- Mice, Knockout
- Neovascularization, Pathologic/physiopathology
- RNA, Messenger/metabolism
- Tumor Necrosis Factor-alpha/pharmacology
- Galactoside 2-alpha-L-fucosyltransferase
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Affiliation(s)
- Mohammad A Amin
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Phillip L Campbell
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Jeffrey H Ruth
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Takeo Isozaki
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Bradley J Rabquer
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - W Alex Stinson
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Martin O'Brien
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Gautam Edhayan
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Ray A Ohara
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Jonathon Vargo
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Steven E Domino
- Department of Obstetrics and Gynecology, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Alisa E Koch
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA Veteran's Administration, Ann Arbor, Michigan, USA
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20
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Chen G, Wang Y, Qin X, Li H, Guo Y, Wang Y, Liu H, Wang X, Song G, Li F, Li F, Guo S, Qiu L, Li Z. Change in IgG1FcN-linked glycosylation in human lung cancer: Age- and sex-related diagnostic potential. Electrophoresis 2013; 34:2407-16. [DOI: 10.1002/elps.201200455] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Revised: 02/27/2013] [Accepted: 04/19/2013] [Indexed: 11/05/2022]
Affiliation(s)
- Guoqiang Chen
- Department of Biophysics and Structural Biology; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC); Beijing; P. R. China
| | - Yanmin Wang
- Department of Clinical Laboratory; Heze Municipal Hospital; Heze; P. R. China
| | - Xuzhen Qin
- Department of Clinical Laboratory; Peking Union Medical College Hospital; CAMS & PUMC; Beijing; P. R. China
| | - Hexiang Li
- Caoxian Gongfei Hospital; Caoxian; P. R. China
| | - Yumei Guo
- Department of Biophysics and Structural Biology; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC); Beijing; P. R. China
| | - Yanying Wang
- Department of Biophysics and Structural Biology; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC); Beijing; P. R. China
| | - Hui Liu
- Department of Biophysics and Structural Biology; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC); Beijing; P. R. China
| | - Xiaodong Wang
- Department of Biophysics and Structural Biology; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC); Beijing; P. R. China
| | - Gaoguang Song
- Department of Biophysics and Structural Biology; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC); Beijing; P. R. China
| | - Fang Li
- Department of Biophysics and Structural Biology; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC); Beijing; P. R. China
| | - Fenjie Li
- Department of Biophysics and Structural Biology; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC); Beijing; P. R. China
| | - Shuai Guo
- Department of Biophysics and Structural Biology; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC); Beijing; P. R. China
| | - Ling Qiu
- Department of Clinical Laboratory; Peking Union Medical College Hospital; CAMS & PUMC; Beijing; P. R. China
| | - Zhili Li
- Department of Biophysics and Structural Biology; Institute of Basic Medical Sciences; Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC); Beijing; P. R. China
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21
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Dall’Olio F, Vanhooren V, Chen CC, Slagboom PE, Wuhrer M, Franceschi C. N-glycomic biomarkers of biological aging and longevity: a link with inflammaging. Ageing Res Rev 2013; 12:685-98. [PMID: 22353383 DOI: 10.1016/j.arr.2012.02.002] [Citation(s) in RCA: 155] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Revised: 01/24/2012] [Accepted: 02/06/2012] [Indexed: 01/31/2023]
Abstract
Glycosylation is a frequent co/post-translational modification of proteins which modulates a variety of biological functions. The analysis of N-glycome, i.e. the sugar chains N-linked to asparagine, identified new candidate biomarkers of aging such as N-glycans devoid of galactose residues on their branches, in a variety of human and experimental model systems, such as healthy old people, centenarians and their offspring and caloric restricted mice. These agalactosylated biantennary structures mainly decorate Asn297 of Fc portion of IgG (IgG-G0), and are present also in patients affected by progeroid syndromes and a variety of autoimmune/inflammatory diseases. IgG-G0 exert a pro-inflammatory effect through different mechanisms, including the lectin pathway of complement, binding to Fcγ receptors and formation of autoantibody aggregates. The age-related accumulation of IgG-G0 can contribute to inflammaging, the low-grade pro-inflammatory status that characterizes elderly, by creating a vicious loop in which inflammation is responsible for the production of aberrantly glycosylated IgG which, in turn, would activate the immune system, exacerbating inflammation. Moreover, recent data suggest that the N-glycomic shift observed in aging could be related not only to inflammation but also to alteration of important metabolic pathways. Thus, altered N-glycans are both powerful markers of aging and possible contributors to its pathogenesis.
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22
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Baković MP, Selman MHJ, Hoffmann M, Rudan I, Campbell H, Deelder AM, Lauc G, Wuhrer M. High-Throughput IgG Fc N-Glycosylation Profiling by Mass Spectrometry of Glycopeptides. J Proteome Res 2013; 12:821-31. [DOI: 10.1021/pr300887z] [Citation(s) in RCA: 143] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Maja Pučić Baković
- Laboratory
of Glycobiology, Genos Ltd., Planinska
1, 10000 Zagreb, Croatia
| | - Maurice H. J. Selman
- Biomolecular Mass Spectrometry Unit, Leiden University Medical Center, Leiden, The Netherlands
| | - Marcus Hoffmann
- Biomolecular Mass Spectrometry Unit, Leiden University Medical Center, Leiden, The Netherlands
- Max Planck Institute for Dynamics of Complex Technical Systems, Sandtorstrasse 1, 39106
Magdeburg, Germany
| | - Igor Rudan
- Centre
for Population Health Sciences, The University of Edinburgh Medical School, Edinburgh, U.K
| | - Harry Campbell
- Centre
for Population Health Sciences, The University of Edinburgh Medical School, Edinburgh, U.K
| | - André M. Deelder
- Biomolecular Mass Spectrometry Unit, Leiden University Medical Center, Leiden, The Netherlands
| | - Gordan Lauc
- Laboratory
of Glycobiology, Genos Ltd., Planinska
1, 10000 Zagreb, Croatia
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1,
10000 Zagreb, Croatia
| | - Manfred Wuhrer
- Biomolecular Mass Spectrometry Unit, Leiden University Medical Center, Leiden, The Netherlands
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23
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Ercan A, Barnes MG, Hazen M, Tory H, Henderson L, Dedeoglu F, Fuhlbrigge RC, Grom A, Holm IA, Kellogg M, Kim S, Adamczyk B, Rudd PM, Son MB, Sundel RP, Foell D, Glass DN, Thompson SD, Nigrovic PA. Multiple juvenile idiopathic arthritis subtypes demonstrate proinflammatory IgG glycosylation. ACTA ACUST UNITED AC 2012; 64:3025-33. [PMID: 22549726 DOI: 10.1002/art.34507] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Rheumatoid arthritis is associated with an excess of agalactosylated (G0) IgG that is considered relatively proinflammatory. Assessment of this association in juvenile idiopathic arthritis (JIA) is complicated by age-dependent IgG glycan variation. The aim of this study was to conduct the first large-scale survey of IgG glycans in healthy children and patients with JIA, with a focus on early childhood, the time of peak JIA incidence. METHODS IgG glycans from healthy children and disease-modifying antirheumatic drug-naive patients with JIA were characterized using high-performance liquid chromatography. Agalactosylated glycans were quantitated with reference to monogalactosylated (G1) species. Associations were sought between the G0:G1 ratio and disease characteristics. RESULTS Among healthy children ages 9 months to 16 years (n = 165), the G0:G1 ratio was highly age dependent, with the ratio peaking to 1.19 in children younger than age 3 years and declining to a nadir of 0.83 after age 10 years (Spearman's ρ = 0.60, P < 0.0001). In patients with JIA (n = 141), the G0:G1 ratio was elevated compared with that in control subjects (1.32 versus 1.02; P < 0.0001). The G0:G1 ratio corrected for age was abnormally high in all JIA subtypes (enthesitis-related arthritis was not assessed), most strikingly in systemic JIA. Glycosylation aberrancy was comparable in patients with and those without antinuclear antibodies and in both early- and late-onset disease and exhibited at most a weak correlation with markers of inflammation. CONCLUSION IgG glycosylation is skewed toward proinflammatory G0 variants in healthy children, in particular during the first few years of life. This deviation is exaggerated in patients with JIA. The role for IgG glycan variation in immune function in children, including the predilection of JIA for early childhood, remains to be defined.
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Affiliation(s)
- Altan Ercan
- Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
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24
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Fratrić N, Gvozdić D, Vuković D, Savić O, Buač M, Ilić V. Evidence that calf bronchopneumonia may be accompanied by increased sialylation of circulating immune complexes’ IgG. Vet Immunol Immunopathol 2012; 150:161-8. [DOI: 10.1016/j.vetimm.2012.09.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 09/07/2012] [Accepted: 09/17/2012] [Indexed: 01/10/2023]
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25
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Troelsen LN, Jacobsen S, Abrahams JL, Royle L, Rudd PM, Narvestad E, Heegaard NH, Garred P. IgG glycosylation changes and MBL2 polymorphisms: associations with markers of systemic inflammation and joint destruction in rheumatoid arthritis. J Rheumatol 2012; 39:463-9. [PMID: 22247351 DOI: 10.3899/jrheum.110584] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To examine whether IgG glycosylation changes and MBL2 genotypes are associated with systemic inflammation and joint destruction in rheumatoid arthritis (RA). METHODS IgG N-glycan content was determined from serum in 118 patients with RA by high-throughput glycan analysis using normal-phase high-pressure liquid chromatography. MBL2 extended genotypes (YA/YA, YA/XA, XA/XA, YA/YO, XA/YO, YO/YO) were determined. Systemic inflammation was assessed by serum levels of C-reactive protein (CRP), interleukin 6 (IL-6), and tumor necrosis factor-α (TNF-α). Joint destruction was assessed by total Sharp score (TSS) and alloplastic surgery records. RESULTS IgG hypogalactosylation was significantly correlated to IL-6 (Spearman's rho = 0.32, p < 0.001), CRP (Spearman's rho = 0.31, p < 0.001), TSS (Spearman's rho = 0.25, p = 0.01), and alloplastic replacement of joints (Spearman's rho = 0.18, p = 0.05). In multivariate analysis including age, CRP, anticitrullinated protein antibodies (ACPA), and other confounders, IgG hypogalactosylation was significantly associated with TSS (p = 0.014) and alloplastic joint replacement (OR 76.5, p = 0.041) in patients homozygous for the high expression MBL2 genotype YA/YA, but not in carriers of lower expression genotypes. CONCLUSION Decreased galactosylation of IgG correlated to markers of inflammation, i.e., IL-6 and CRP. Only in patients homozygous for high expression of the MBL2 genotype YA/YA was IgG hypogalactosylation associated with markers of joint destruction. Our results suggest that inflammation-associated decreased galactosylation of IgG combined with high expression MBL2 genotypes are involved in the pathophysiology of RA.
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Affiliation(s)
- Lone N Troelsen
- Department of Rheumatology, Department of Clinical Immunology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.
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26
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Scherer HU, van der Woude D, Ioan-Facsinay A, el Bannoudi H, Trouw LA, Wang J, Häupl T, Burmester GR, Deelder AM, Huizinga TWJ, Wuhrer M, Toes REM. Glycan profiling of anti-citrullinated protein antibodies isolated from human serum and synovial fluid. ACTA ACUST UNITED AC 2010; 62:1620-9. [PMID: 20178128 DOI: 10.1002/art.27414] [Citation(s) in RCA: 163] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Anti-citrullinated protein antibodies (ACPA) exhibit unique specificity for rheumatoid arthritis. However, it is incompletely understood whether and how ACPA contribute to disease pathogenesis. The Fc part of human IgG carries 2 N-linked glycan moieties that are crucial for the structural stability of the antibody and that modulate both its binding affinity to Fcgamma receptors and its ability to activate complement. We undertook this study to analyze Fc glycosylation of IgG1 ACPA in serum and synovial fluid (SF) in order to further characterize the immune response to citrullinated antigens. METHODS ACPA were isolated by affinity purification using cyclic citrullinated peptides as antigen. IgG1 Fc glycosylation was analyzed by mass spectrometry. ACPA IgG1 glycan profiles were compared with glycan profiles of total serum IgG1 obtained from 85 well-characterized patients. Glycan profiles of paired SF and serum samples were available from 11 additional patients. RESULTS Compared with the pool of serum IgG1, ACPA IgG1 lacked terminal sialic acid residues. In SF, ACPA were highly agalactosylated and lacked sialic acid residues, a feature that was not detected for total SF IgG1. Moreover, differential ACPA glycan profiles were detected in rheumatoid factor (RF)-positive and RF-negative patients. CONCLUSION ACPA IgG1 exhibit a specific Fc-linked glycan profile that is distinct from that of total serum IgG1. Moreover, Fc glycosylation of ACPA differs markedly between SF and serum. Since Fc glycosylation directly affects the recruitment of Fc-mediated effector mechanisms, these data could further our understanding of the contribution of ACPA to disease pathogenesis.
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Affiliation(s)
- Hans U Scherer
- Leiden University Medical Center, Leiden, The Netherlands
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Yin B, Zheng N, Li Y, Tang S, Liang L, Xie Q. Growth phase-dependent expression of proteins with decreased plant-specific N-glycans and immunogenicity in tobacco BY2 cells. Sci China C Life Sci 2009; 52:739-46. [PMID: 19727592 DOI: 10.1007/s11427-009-0093-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2009] [Accepted: 04/15/2009] [Indexed: 10/20/2022]
Abstract
Plants possess some desirable characteristics to synthesize recombinant glycoproteins for pharmaceutical application. However, the mammalian glycoproteins produced in plants are somewhat different from their natural counterparts in terms of N-glycoforms. The immunogenicity of plant-specific glyco-epitopes is the major concern in human therapy. Here, the distribution of N-glycans in different growth phases of tobacco BY2 cells and their immunogenicity in mice were determined. It was observed that the percentage of beta1,2-xylose and alpha1,3-fucose in proteins of growing cells increased and the corresponding protein extracts caused accelerated immune response in mice. Based on this observation, the recombinant erythropoietin in BY2 cells was expressed and characterized, and Western blot analysis showed that the recombinant erythropoietin contained a relatively small amount of plant-specific glyco-epitopes in the early phase of culture growth. This study may provide a simple but effective strategy for the production of therapeutic glycoproteins with human-like N-glycan structures in plant hosts to avoid a great allergenic risk.
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Affiliation(s)
- BoJiao Yin
- Sun Yat-sen (Zhongshan) University, Guangzhou, 510275, China
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Tateno H, Nakamura-Tsuruta S, Hirabayashi J. Comparative analysis of core-fucose-binding lectins from Lens culinaris and Pisum sativum using frontal affinity chromatography. Glycobiology 2009; 19:527-36. [PMID: 19218400 DOI: 10.1093/glycob/cwp016] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Lens culinaris lectin (LCA) is a useful probe for the detection in serum of a core-fucosylated alpha-fetoprotein, called AFP-L3 fraction, which is a well-known marker for the diagnosis and prognosis of hepatocellular carcinoma. Here we performed a systematic quantitative interaction analysis of LCA and its close homolog, Pisum sativum lectin (PSA), by frontal affinity chromatography with 143 pyridylaminated (PA) glycans including a series of core-fucosylated glycans. Both lectins showed binding affinity to core-fucosylated, mono- and bi-antennary N-glycans, but not to their tri- and tetra-antennary forms, indicating that the addition of the GlcNAc residue at the N-acetylglucosaminyltransferase IV position abrogates the binding affinity. However, their specificities are distinguishable: while LCA showed the highest affinity to the core-fucosylated, agalactosylated, bi-antennary N-glycan (K(a)=1.1 x 10(5) M(-1)), PSA showed the highest affinity to the core-fucosylated, trimannosyl structure (K(a)=1.2 x 10(5) M(-1)). Glycan-binding specificities of LCA and PSA were also analyzed by glycoconjugate microarray compared to other core-fucose-binding lectins from Aspergillus oryzae (AOL) and Aleuria auratia (AAL). LCA and PSA bound specifically to core fucose, whereas AOL and AAL exhibited broad specificity to fucosylated glycans. These results explain why LCA is appropriate as a specific probe for AFP-L3, which mainly contains a core-fucosylated, biantennary N-glycan, but not its highly branched forms.
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Affiliation(s)
- Hiroaki Tateno
- Research Center for Medical Glycoscience, National Institute of Advanced Industrial Science and Technology, Central 2, 1-1-1 Umezono, Ibaraki 305-8568, Japan
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Mislovičová D, Gemeiner P, Kozarova A, Kožár T. Lectinomics I. Relevance of exogenous plant lectins in biomedical diagnostics. Biologia (Bratisl) 2009; 64:1-19. [DOI: 10.2478/s11756-009-0029-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Knežević A, Polašek O, Gornik O, Rudan I, Campbell H, Hayward C, Wright A, Kolčić I, O’Donoghue N, Bones J, Rudd PM, Lauc G. Variability, Heritability and Environmental Determinants of Human Plasma N-Glycome. J Proteome Res 2008; 8:694-701. [DOI: 10.1021/pr800737u] [Citation(s) in RCA: 186] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ana Knežević
- Department of Biochemistry and Molecular Biology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia, Andrija Štampar School of Public Health, University of Zagreb Medical School, Zagreb, Croatia, Croatian Centre for Global Health, University of Split Medical School, Split, and Institute for Clinical Medical Research, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia, Public Health Sciences, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom, MRC Human Genetics
| | - Ozren Polašek
- Department of Biochemistry and Molecular Biology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia, Andrija Štampar School of Public Health, University of Zagreb Medical School, Zagreb, Croatia, Croatian Centre for Global Health, University of Split Medical School, Split, and Institute for Clinical Medical Research, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia, Public Health Sciences, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom, MRC Human Genetics
| | - Olga Gornik
- Department of Biochemistry and Molecular Biology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia, Andrija Štampar School of Public Health, University of Zagreb Medical School, Zagreb, Croatia, Croatian Centre for Global Health, University of Split Medical School, Split, and Institute for Clinical Medical Research, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia, Public Health Sciences, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom, MRC Human Genetics
| | - Igor Rudan
- Department of Biochemistry and Molecular Biology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia, Andrija Štampar School of Public Health, University of Zagreb Medical School, Zagreb, Croatia, Croatian Centre for Global Health, University of Split Medical School, Split, and Institute for Clinical Medical Research, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia, Public Health Sciences, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom, MRC Human Genetics
| | - Harry Campbell
- Department of Biochemistry and Molecular Biology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia, Andrija Štampar School of Public Health, University of Zagreb Medical School, Zagreb, Croatia, Croatian Centre for Global Health, University of Split Medical School, Split, and Institute for Clinical Medical Research, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia, Public Health Sciences, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom, MRC Human Genetics
| | - Caroline Hayward
- Department of Biochemistry and Molecular Biology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia, Andrija Štampar School of Public Health, University of Zagreb Medical School, Zagreb, Croatia, Croatian Centre for Global Health, University of Split Medical School, Split, and Institute for Clinical Medical Research, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia, Public Health Sciences, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom, MRC Human Genetics
| | - Alan Wright
- Department of Biochemistry and Molecular Biology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia, Andrija Štampar School of Public Health, University of Zagreb Medical School, Zagreb, Croatia, Croatian Centre for Global Health, University of Split Medical School, Split, and Institute for Clinical Medical Research, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia, Public Health Sciences, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom, MRC Human Genetics
| | - Ivana Kolčić
- Department of Biochemistry and Molecular Biology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia, Andrija Štampar School of Public Health, University of Zagreb Medical School, Zagreb, Croatia, Croatian Centre for Global Health, University of Split Medical School, Split, and Institute for Clinical Medical Research, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia, Public Health Sciences, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom, MRC Human Genetics
| | - Niaobh O’Donoghue
- Department of Biochemistry and Molecular Biology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia, Andrija Štampar School of Public Health, University of Zagreb Medical School, Zagreb, Croatia, Croatian Centre for Global Health, University of Split Medical School, Split, and Institute for Clinical Medical Research, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia, Public Health Sciences, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom, MRC Human Genetics
| | - Jonathan Bones
- Department of Biochemistry and Molecular Biology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia, Andrija Štampar School of Public Health, University of Zagreb Medical School, Zagreb, Croatia, Croatian Centre for Global Health, University of Split Medical School, Split, and Institute for Clinical Medical Research, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia, Public Health Sciences, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom, MRC Human Genetics
| | - Pauline M. Rudd
- Department of Biochemistry and Molecular Biology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia, Andrija Štampar School of Public Health, University of Zagreb Medical School, Zagreb, Croatia, Croatian Centre for Global Health, University of Split Medical School, Split, and Institute for Clinical Medical Research, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia, Public Health Sciences, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom, MRC Human Genetics
| | - Gordan Lauc
- Department of Biochemistry and Molecular Biology, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia, Andrija Štampar School of Public Health, University of Zagreb Medical School, Zagreb, Croatia, Croatian Centre for Global Health, University of Split Medical School, Split, and Institute for Clinical Medical Research, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia, Public Health Sciences, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom, MRC Human Genetics
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Faid V, Chirat F, Seta N, Foulquier F, Morelle W. A rapid mass spectrometric strategy for the characterization of N- and O-glycan chains in the diagnosis of defects in glycan biosynthesis. Proteomics 2007; 7:1800-13. [PMID: 17520685 DOI: 10.1002/pmic.200600977] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Glycosylation of proteins is a very complex process which involves numerous factors such as enzymes or transporters. A defect in one of these factors in glycan biosynthetic pathways leads to dramatic disorders named congenital disorders of glycosylation (CDG). CDG can affect the biosynthesis of not only protein N-glycans but also O-glycans. The structural analysis of glycans on serum glycoproteins is essential to solving the defect. For this reason, we propose in this paper a strategy for the simultaneous characterization of both N- and O-glycan chains isolated from the serum glycoproteins. The serum (20 microL) is used for the characterization of N-glycans which are released by enzymatic digestion with PNGase F. O-glycans are chemically released by reductive elimination from whole serum glycoproteins using 10 microL of the serum. Using strategies based on mass spectrometric analysis, the structures of N- and O-glycan chains are defined. These strategies were applied on the sera from one patient with CDG type IIa, and one patient with a mild form of congenital disorder of glycosylation type II (CDG-II) that is caused by a deficiency in the Cog1 subunit of the complex.
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Affiliation(s)
- Valegh Faid
- Unité Mixte de Recherche CNRS/USTL 8576, Glycobiologie Structurale et Fonctionnelle, Université des Sciences et Technologies de Lille 1, Villeneuve d'Ascq, France
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Gornik O, Lauc G. Enzyme linked lectin assay (ELLA) for direct analysis of transferrin sialylation in serum samples. Clin Biochem 2007; 40:718-23. [PMID: 17320850 DOI: 10.1016/j.clinbiochem.2007.01.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2006] [Revised: 12/29/2006] [Accepted: 01/15/2007] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Glycosylation analysis provides many opportunities for diagnostics, but its complexity hampers its routine application. Aiming to alleviate this problem, we developed a simple assay that can measure sialylation of transferrin directly from serum. DESIGN AND METHODS Transferrin samples with different levels of sialylation were prepared by desialylation. Enzyme-linked-lectin assay (ELLA) and high-performance anion-exchange chromatography (HPAEC) have been used to analyze transferrin sialylation. Periodate oxidation was used to oxidize carbohydrates on antibodies. RESULTS ELLA was developed for the analysis of serum transferrin sialylation. Antibodies oxidized in situ with periodate have been used to capture transferrin from serum samples. Sialic acid on transferrin has been detected with Sambucus nigra agglutinin (SNA) lectin. Transferrin samples with different sialylation levels prepared by differential desialylation have been used as standards. Accuracy of the method has been confirmed by comparison to HPAEC analysis. CONCLUSIONS A rapid and simple ELLA that can be routinely used for the analysis of serum transferrin sialylation has been developed.
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Affiliation(s)
- Olga Gornik
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovacića 1, 10000 Zagreb, Croatia
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Pasek M, Duk M, Podbielska M, Sokolik R, Szechiński J, Lisowska E, Krotkiewski H. Galactosylation of IgG from rheumatoid arthritis (RA) patients--changes during therapy. Glycoconj J 2007; 23:463-71. [PMID: 17006638 DOI: 10.1007/s10719-006-5409-0] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2005] [Revised: 09/29/2005] [Accepted: 10/06/2005] [Indexed: 12/11/2022]
Abstract
It is well documented that serum IgG from rheumatoid arthritis (RA) patients exhibits decreased galactosylation of its conservative N-glycans (Asn-297) in CH2 domains of the heavy chains; it has been shown that this agalactosylation is proportional to disease severity. In the present investigation we analyzed galactosylation of IgG derived from the patients using a modified ELISA-plate test, biosensor BIAcore and total sugar analysis (GC-MS). For ELISA and BIAcore the binding of IgG preparations, purified from the patients' sera, to two lectins: Ricinus communis (RCA-I) and Griffonia simplicifolia (GSL-II) was applied. Based on ELISA-plate test an agalactosylation factor (AF, a relative ratio of GSL-II/RCA-I binding) was calculated, which was proportional to actual disease severity. Repeated testing of several patients before and after treatment with methotrexate (MTX) alone or in combination with Remicade (a chimeric antibody anti-TNF-alpha) supplied results indicating an increase of IgG galactosylation during the treatment. This introductory observation suggests that IgG galactosylation may be an additional indicator of the RA patients' improvement.
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Affiliation(s)
- Marta Pasek
- Ludwik Hirszfeld Institute of Immunology & Experimental Therapy, Polish Academy of Sciences, R. Weigla 12, 53-114, Wroclaw, Poland
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Guo N, Liu Y, Masuda Y, Kawagoe M, Ueno Y, Kameda T, Sugiyama T. Repeated immunization induces the increase in fucose content on antigen-specific IgG N-linked oligosaccharides. Clin Biochem 2005; 38:149-53. [PMID: 15642277 DOI: 10.1016/j.clinbiochem.2004.10.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2004] [Revised: 09/27/2004] [Accepted: 10/05/2004] [Indexed: 11/21/2022]
Abstract
OBJECTIVE In order to investigate whether repeated immunization induces changes in IgG glycosylation, we analyzed the composition of oligosaccharides on antigen-specific IgGs obtained from mice that received different amounts of immunization boosts. METHODS Three groups of mice were immunized with ovalbumin (OVA) and boosted once, twice, or three times, respectively, with an interval of 1 week. The patterns of oligosaccharides present in anti-OVA specific IgGs were analyzed using lectin-enzyme-linked immunosorbent assay (ELISA) and lectin-blot. RESULTS The repeated injection of OVA induced both the production of specific IgGs and an increase of fucose content in N-linked oligosaccharides of the IgGs. The lowest IgG fucosylation was observed in mice boosted once, whereas the highest fucosylation rate was observed in mice boosted three times. ELISA assay demonstrated that there was a positive relationship between the fucose content and amount of immunization boosts. CONCLUSIONS IgG fucosylation increases during repeated immunization with ovalbumin. The alteration of IgG fucosylation may have important biological significance.
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Affiliation(s)
- Naxin Guo
- Department of Biochemistry, School of Medicine, Akita University, 1-1-1 Hondo, Akita 010-8543, Japan
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Abstract
Fucose is a deoxyhexose that is present in a wide variety of organisms. In mammals, fucose-containing glycans have important roles in blood transfusion reactions, selectin-mediated leukocyte-endothelial adhesion, host-microbe interactions, and numerous ontogenic events, including signaling events by the Notch receptor family. Alterations in the expression of fucosylated oligosaccharides have also been observed in several pathological processes, including cancer and atherosclerosis. Fucose deficiency is accompanied by a complex set of phenotypes both in humans with leukocyte adhesion deficiency type II (LAD II; also known as congenital disorder of glycosylation type IIc) and in a recently generated strain of mice with a conditional defect in fucosylated glycan expression. Fucosylated glycans are constructed by fucosyltransferases, which require the substrate GDP-fucose. Two pathways for the synthesis of GDP-fucose operate in mammalian cells, the GDP-mannose-dependent de novo pathway and the free fucose-dependent salvage pathway. In this review, we focus on the biological functions of mammalian fucosylated glycans and the biosynthetic processes leading to formation of the fucosylated glycan precursor GDP-fucose.
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Affiliation(s)
- Daniel J Becker
- Graduate Program in Cellular and Molecular Biology, University of Michigan Medical School, MSRB I, room 3510, 1150 W. Medical Center Drive, Ann Arbor, MI 48109-0650, USA.
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Abstract
Macrophages have been described as 'factories' of pro-inflammatory cytokines. Several years ago the present investigators reported that binding of inactive myeloperoxidase (iMPO) to the macrophage-mannose receptor resulted in the induction of TNF and other cytokines. Also, if endothelial cells were incubated with iMPO, but not enzymatically active myeloperoxidase (MPO), upregulation of cytokine mRNA and cytokines was observed. Taken in their entirety, the data suggest a dichotomy of function for myeloperoxidase; that is, enzymatically active MPO functions primarily in cell killing through the 'cytotoxic triad' and iMPO functions as an immunoregulatory molecule through the induction of numerous cytokines. These studies underscore a previously unrecognized interaction among neutrophils, endothelial cells and macrophages, resulting in the induction of TNF and perpetuation of inflammation. The inflammation induced could be relevant in a number of diseases in which neutrophils play a prominent role. The importance of this interaction in the pathogenesis of rheumatoid arthritis is currently under investigation.
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Affiliation(s)
- D L Lefkowitz
- Department of Microbiology and Immunology, College of Medicine, University of South Florida, Tampa, Florida 33612-4799, USA.
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Ebrini I, Agnello D, Miller I, Villa P, Fratelli M, Ghezzi P, Gemeiner M, Chan J, Aebersold R, Gianazza E. Proteins of rat serum V: adjuvant arthritis and its modulation by nonsteroidal anti-inflammatory drugs. Electrophoresis 2000; 21:2170-9. [PMID: 10892728 DOI: 10.1002/1522-2683(20000601)21:11<2170::aid-elps2170>3.0.co;2-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The effect of adjuvant arthritis (AA) on the pattern of rat serum proteins includes the upregulation of haptoglobin, orosomucoid, alpha2-macroglobulin, serine protease inhibitor-3, thiostatin, alpha1-antitrypsin, C-reactive protein, and the downregulation of kallikrein-binding protein, alpha1-inhibitor III, apolipoprotein A-I, alpha2-HS-glycoprotein, albumin, apolipoprotein A-IV, transthyretin and transferrin. Minor changes (+/- 20%) are observed for Gc-globulin, ceruloplasmin, and alpha1-macroglobulin. AA thus grossly resembles the acute inflammatory response elicited by the injection of turpentine, although the changes in the levels of negative acute-phase proteins (APP) are smaller in acute inflammation. Indomethacine and ibuprofen inhibit the effects of arthritis on the synthesis of rat serum proteins in different ways: The former is, on average, three times as effective as the latter. Each drug interferes differently with different proteins. In animals without AA, both nonsteroidal anti-inflammatory drugs (NSAID) mimic the inflammatory pattern to a certain extent, with more effect on the negative than on the positive APPs. Overall, the shifts in serum protein levels parallel changes in inflammatory parameters such as joint swelling and serum interleukin-6 (IL-6) activity. Protein quantitation after two-dimensional electrophoresis (2-DE) reveals some effects of the drugs per se which escape detection by other routine tests.
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Affiliation(s)
- I Ebrini
- Istituto di Ricerche Farmacologiche Mario Negri, Università degli Studi, Milano, Italy
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Abstract
OBJECTIVES Glycosylation of IgG was suggested to be important in the etiology of rheumatoid diseases. Most studies addressed the amount of galactose, but recently we showed that fucose is highly increased in the juvenile chronic arthritis. The objective of this study was to determine fucosylation of IgG heavy chains in patients with rheumatoid arthritis (RA). DESIGN AND METHODS IgG was purified from sera of 29 RA patients and 17 matching controls using ammonium sulfate precipitation and ion exchange. Heavy chains were separated by denaturing polyacrylamide gel electrophoresis and their fucosylation analysed using fucose-specific UEA I lectin. RESULTS Fucose was found to be approximately 40% increased in RA patients with very high statistical significance (p = 0.00095). CONCLUSIONS Fucose on IgG heavy chains is significantly increased in patients with rheumatoid arthritis.
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Affiliation(s)
- I Gornik
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy and Biochemistry, Zagreb, Croatia
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