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Vicente MM, Leite-Gomes E, Pinho SS. Glycome dynamics in T and B cell development: basic immunological mechanisms and clinical applications. Trends Immunol 2023:S1471-4906(23)00112-6. [PMID: 37407365 PMCID: PMC10394430 DOI: 10.1016/j.it.2023.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/12/2023] [Accepted: 06/12/2023] [Indexed: 07/07/2023]
Abstract
Glycans cover the surfaces of all mammalian cells through a process called glycosylation. Nearly all proteins and receptors that integrate the intricate series of co-stimulatory/inhibitory pathways of the immune system are glycosylated. Growing evidence indicates that the development of the immune system at the origins of T and B cell development is tightly regulated by glycosylation. In this opinion, we hypothesize that the glycome composition of developing T and B cells is developmentally regulated. We discuss how glycans play fundamental roles in lymphocyte development and how glycans early define T and B cell functionality in multiple aspects of adaptive immunity. These advances can provide opportunities for the discovery of novel disease factors and more effective candidate treatments for various conditions.
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Affiliation(s)
- Manuel M Vicente
- i3S - Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal; Graduate Program in Areas of Applied and Basic Biology (GABBA), School of Medicine and Biomedical Sciences (ICBAS), University of Porto, 4050-313 Porto, Portugal; School of Medicine and Biomedical Sciences (ICBAS), University of Porto, 4050-313 Porto, Portugal
| | - Eduarda Leite-Gomes
- i3S - Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal; School of Medicine and Biomedical Sciences (ICBAS), University of Porto, 4050-313 Porto, Portugal
| | - Salomé S Pinho
- i3S - Institute for Research and Innovation in Health, University of Porto, 4200-135 Porto, Portugal; School of Medicine and Biomedical Sciences (ICBAS), University of Porto, 4050-313 Porto, Portugal; Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal.
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Galectin-3: A Novel Marker for the Prediction of Stroke Incidence and Clinical Prognosis. Mediators Inflamm 2022; 2022:2924773. [PMID: 35281427 PMCID: PMC8904909 DOI: 10.1155/2022/2924773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 01/09/2022] [Accepted: 02/03/2022] [Indexed: 12/15/2022] Open
Abstract
Stroke, whether ischemic or haemorrhagic, is one of the main causes of mortality and disability all over the world, which entails huge burdens in both healthcare environments as well as social and economic aspects of life. Therefore, there is a continuous search for novel reliable biomarkers that can enhance the recognition of stroke events in a timely manner and predict the clinical outcomes following a stroke event. Galectins are a group of proteins expressed by many types of cells and tissues including vasculature, certain immune cells, fibroblasts, and gastrointestinal epithelial cells. These proteins vary in their structure and configuration according to their type and have a diversity of functions according to the type of tissue they are expressed in. Among these proteins, a few studies investigated mainly the roles played by galectin-1 (Gal-1) and galectin-3 (Gal-3) in the molecular mechanisms of atherosclerosis and in brain tissue remodeling after a stroke event. In this review, we present an updated overview of the current understanding of Gal-3's functions and implications in stroke occurrence and the response of the brain tissue to stroke events, which may be a key to its utility as a predictor of stroke incidence and clinical prognosis in the future.
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Feng C, Nita-Lazar M, González-Montalbán N, Wang J, Mancini J, Wang S, Ravindran C, Ahmed H, Vasta GR. Manipulating Galectin Expression in Zebrafish (Danio rerio). Methods Mol Biol 2022; 2442:425-443. [PMID: 35320539 DOI: 10.1007/978-1-0716-2055-7_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Techniques for disrupting gene expression are invaluable tools for the analysis of the biological role of a gene product. Because of its genetic tractability and multiple advantages over conventional mammalian models, the zebrafish (Danio rerio) is recognized as a powerful system for gaining new insight into diverse aspects of human health and disease. Among the multiple mammalian gene families for which the zebrafish has shown promise as an invaluable model for functional studies, the galectins have attracted great interest due to their participation in early development, regulation of immune homeostasis, and recognition of microbial pathogens. Galectins are β-galactosyl-binding lectins with a characteristic sequence motif in their carbohydrate recognition domains (CRDs), that constitute an evolutionary conserved family ubiquitous in eukaryotic taxa. Galectins are emerging as key players in the modulation of many important pathological processes, which include acute and chronic inflammatory diseases, autoimmunity and cancer, thus making them potential molecular targets for innovative drug discovery. Here, we provide a review of the current methods available for the manipulation of gene expression in the zebrafish, with a focus on gene knockdown [morpholino (MO)-derived antisense oligonucleotides] and knockout (CRISPR-Cas) technologies.
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Affiliation(s)
- Chiguang Feng
- Department of Microbiology and Immunology, Institute of Marine and Environmental Technology, University of Maryland Baltimore, Baltimore, MD, USA
| | - Mihai Nita-Lazar
- Department of Microbiology and Immunology, Institute of Marine and Environmental Technology, University of Maryland Baltimore, Baltimore, MD, USA
| | - Nuria González-Montalbán
- Department of Microbiology and Immunology, Institute of Marine and Environmental Technology, University of Maryland Baltimore, Baltimore, MD, USA
| | - Jingyu Wang
- Department of Microbiology and Immunology, Institute of Marine and Environmental Technology, University of Maryland Baltimore, Baltimore, MD, USA
| | - Justin Mancini
- Department of Microbiology and Immunology, Institute of Marine and Environmental Technology, University of Maryland Baltimore, Baltimore, MD, USA
| | - Sheng Wang
- Department of Microbiology and Immunology, Institute of Marine and Environmental Technology, University of Maryland Baltimore, Baltimore, MD, USA
- State Key Laboratory for Biocontrol, School of Marine Sciences, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Chinnarajan Ravindran
- Department of Microbiology and Immunology, Institute of Marine and Environmental Technology, University of Maryland Baltimore, Baltimore, MD, USA
- Department of Marine Biotechnology, National Institute of Oceanography (CSIR), Dona Paula, Goa, India
| | - Hafiz Ahmed
- Department of Biochemistry, School of Medicine, Institute of Marine and Environmental Technology, University of Maryland Baltimore, Baltimore, MD, USA
| | - Gerardo R Vasta
- Department of Microbiology and Immunology, Institute of Marine and Environmental Technology, University of Maryland Baltimore, Baltimore, MD, USA.
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Unraveling How Tumor-Derived Galectins Contribute to Anti-Cancer Immunity Failure. Cancers (Basel) 2021; 13:cancers13184529. [PMID: 34572756 PMCID: PMC8469970 DOI: 10.3390/cancers13184529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 08/16/2021] [Accepted: 08/24/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary This review compiles our current knowledge of one of the main pathways activated by tumors to escape immune attack. Indeed, it integrates the current understanding of how tumor-derived circulating galectins affect the elicitation of effective anti-tumor immunity. It focuses on several relevant topics: which are the main galectins produced by tumors, how soluble galectins circulate throughout biological liquids (taking a body-settled gradient concentration into account), the conditions required for the galectins’ functions to be accomplished at the tumor and tumor-distant sites, and how the physicochemical properties of the microenvironment in each tissue determine their functions. These are no mere semantic definitions as they define which functions can be performed in said tissues instead. Finally, we discuss the promising future of galectins as targets in cancer immunotherapy and some outstanding questions in the field. Abstract Current data indicates that anti-tumor T cell-mediated immunity correlates with a better prognosis in cancer patients. However, it has widely been demonstrated that tumor cells negatively manage immune attack by activating several immune-suppressive mechanisms. It is, therefore, essential to fully understand how lymphocytes are activated in a tumor microenvironment and, above all, how to prevent these cells from becoming dysfunctional. Tumors produce galectins-1, -3, -7, -8, and -9 as one of the major molecular mechanisms to evade immune control of tumor development. These galectins impact different steps in the establishment of the anti-tumor immune responses. Here, we carry out a critical dissection on the mechanisms through which tumor-derived galectins can influence the production and the functionality of anti-tumor T lymphocytes. This knowledge may help us design more effective immunotherapies to treat human cancers.
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Lei T, Blois SM, Freitag N, Bergmann M, Bhushan S, Wahle E, Huang ACC, Chen HL, Hartmann MF, Wudy SA, Liu FT, Meinhardt A, Fijak M. Targeted disruption of galectin 3 in mice delays the first wave of spermatogenesis and increases germ cell apoptosis. Cell Mol Life Sci 2021; 78:3621-3635. [PMID: 33507326 PMCID: PMC11072302 DOI: 10.1007/s00018-021-03757-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/22/2020] [Accepted: 01/06/2021] [Indexed: 12/22/2022]
Abstract
Galectin 3 is a multifunctional lectin implicated in cellular proliferation, differentiation, adhesion, and apoptosis. This lectin is broadly expressed in testicular somatic cells and germ cells, and is upregulated during testicular development. Since the role of galectin 3 in testicular function remains elusive, we aimed to characterize the role of galectin 3 in testicular physiology. We found that galectin 3 transgenic mice (Lgals3-/-) exhibited significantly decreased testicular weight in adulthood compared to controls. The transgenic mice also exhibited a delay to the first wave of spermatogenesis, a decrease in the number of germ cells at postnatal day 5 (P5) and P15, and defective Sertoli cell maturation. Mechanistically, we found that Insulin-like-3 (a Leydig cell marker) and enzymes involved in steroid biosynthesis were significantly upregulated in adult Lgals3-/- testes. These observations were accompanied by increased serum testosterone levels. To determine the underlying causes of the testicular atrophy, we monitored cellular apoptosis. Indeed, adult Lgals3-/- testicular cells exhibited an elevated apoptosis rate that is likely driven by downregulated Bcl-2 and upregulated Bax and Bak expression, molecules responsible for live/death cell balance. Moreover, the percentage of testicular macrophages within CD45+ cells was decreased in Lgals3-/- mice. These data suggest that galectin 3 regulates spermatogenesis initiation and Sertoli cell maturation in part, by preventing germ cells from undergoing apoptosis and regulating testosterone biosynthesis. Going forward, understanding the role of galectin 3 in testicular physiology will add important insights into the factors governing the development of germ cells and steroidogenesis and delineate novel biomarkers of testicular function.
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Affiliation(s)
- Tao Lei
- Department of Anatomy and Cell Biology, Justus-Liebig-University of Giessen, Aulweg 123, 35385, Giessen, Germany
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Sandra M Blois
- Department of Obstetrics and Fetal Medicine, AG Glycoimmunology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20251, Hamburg, Germany
- Experimental and Clinical Research Center, A Cooperation between the Max Delbrück Center for Molecular Medicine in the Helmholtz Association, The Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Nancy Freitag
- Department of Obstetrics and Fetal Medicine, AG Glycoimmunology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20251, Hamburg, Germany
- Experimental and Clinical Research Center, A Cooperation between the Max Delbrück Center for Molecular Medicine in the Helmholtz Association, The Charité Universitätsmedizin Berlin, Berlin, Germany
- Division of General Internal and Psychosomatic Medicine, Berlin Institute of Health, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, Berlin, Germany
| | - Martin Bergmann
- Institute of Veterinary Anatomy, Histology, and Embryology, Justus-Liebig-University of Giessen, Giessen, Germany
| | - Sudhanshu Bhushan
- Department of Anatomy and Cell Biology, Justus-Liebig-University of Giessen, Aulweg 123, 35385, Giessen, Germany
| | - Eva Wahle
- Department of Anatomy and Cell Biology, Justus-Liebig-University of Giessen, Aulweg 123, 35385, Giessen, Germany
| | | | - Hung-Lin Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Michaela F Hartmann
- Steroid Research and Mass Spectrometry Unit, Pediatric Endocrinology and Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig-University of Giessen, Giessen, Germany
| | - Stefan A Wudy
- Steroid Research and Mass Spectrometry Unit, Pediatric Endocrinology and Diabetology, Center of Child and Adolescent Medicine, Justus-Liebig-University of Giessen, Giessen, Germany
| | - Fu-Tong Liu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Andreas Meinhardt
- Department of Anatomy and Cell Biology, Justus-Liebig-University of Giessen, Aulweg 123, 35385, Giessen, Germany
| | - Monika Fijak
- Department of Anatomy and Cell Biology, Justus-Liebig-University of Giessen, Aulweg 123, 35385, Giessen, Germany.
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Srejovic IM, Lukic ML. Galectin-3 in T cell-mediated immunopathology and autoimmunity. Immunol Lett 2021; 233:57-67. [PMID: 33753135 DOI: 10.1016/j.imlet.2021.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/17/2021] [Indexed: 01/05/2023]
Abstract
Galectin-3 (Gal-3) is the only member of galectin family able to form pentamers and heterodimers with chemokines. Its presence in various cells and tissues suggests variety of regulatory functions in physiological conditions, but increasing body of evidence indicates involvement of Gal-3 in pathological cascades of many diseases. Gal-3 exerts different, sometimes opposite, effects in various disorders or in different phases of the same disease. These differences in action of Gal-3 are related to the localization of Gal-3 in the cell, types of receptors through which it acts, or the types of cells that secrete it. As a regulator of immune response and T-cell activity, Gal-3 appears to have important role in development of autoimmunity mediated by T cells. Absence of Gal-3 in C57Bl6 mice favors Th2 mediated inflammatory myocarditis but attenuate fibrosis. Recent data also indicate Gal-3 involvement in development atherosclerosis. In pathogenesis of diabetes type 1 and autoimmune components of diabetes type 2 Gal-3 may have detrimental or protective role depending on its intracellular or extracellular localization. Gal-3 mediates autoimmune hepatic damage through activation of T-cells or natural killer T cells. Gal-3 is an important mediator in neurodevelopment, neuropathology and behavior due to its expression both in neurons and glial cells. All together, assessing the role of Gal-3 in immunopathology and autoimmunity it could be concluded that it is an important participant in pathogenesis, as well as promising monitoring marker and therapeutic target.
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Affiliation(s)
- Ivan M Srejovic
- University of Kragujevac, Faculty of Medical Sciences, Department of Physiology, Svetozara Markovica 69, 34000, Kragujevac, Serbia.
| | - Miodrag L Lukic
- University of Kragujevac, Faculty of Medical Sciences, Department of Physiology, Svetozara Markovica 69, 34000, Kragujevac, Serbia; University of Kragujevac, Faculty of Medical Sciences, Center for Molecular Medicine and Stem Cell Research, Svetozara Markovica 69, 34000, Kragujevac, Serbia.
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The Role of Glycosylation in Inflammatory Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1325:265-283. [PMID: 34495540 DOI: 10.1007/978-3-030-70115-4_13] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The diversity of glycan presentation in a cell, tissue and organism is enormous, which reflects the huge amount of important biological information encoded by the glycome which has not been fully understood. A compelling body of evidence has been highlighting the fundamental role of glycans in immunity, such as in development, and in major inflammatory processes such as inflammatory bowel disease, systemic lupus erythematosus and other autoimmune disorders. Glycans play an instrumental role in the immune response, integrating the canonical circuits that regulate innate and adaptive immune responses. The relevance of glycosylation in immunity is demonstrated by the role of glycans as important danger-associated molecular patterns and pathogen-associated molecular patterns associated with the discrimination between self and non-self; also as important regulators of the threshold of T cell activation, modulating receptors signalling and the activity of both T and other immune cells. In addition, glycans are important determinants that regulate the dynamic crosstalk between the microbiome and immune response. In this chapter, the essential role of glycans in the immunopathogenesis of inflammatory disorders will be presented and its potential clinical applications (diagnosis, prognosis and therapeutics) will be highlighted.
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Pérez AR, de Meis J, Rodriguez-Galan MC, Savino W. The Thymus in Chagas Disease: Molecular Interactions Involved in Abnormal T-Cell Migration and Differentiation. Front Immunol 2020; 11:1838. [PMID: 32983098 PMCID: PMC7492291 DOI: 10.3389/fimmu.2020.01838] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 07/08/2020] [Indexed: 12/24/2022] Open
Abstract
Chagas disease, caused by the protozoan parasite T. cruzi, is a prevalent parasitic disease in Latin America. Presently, it is spreading around the world by human migration, thus representing a new global health issue. Chronically infected individuals reveal a dissimilar disease progression: while nearly 60% remain without apparent disease for life, 30% develop life-threatening pathologies, such as chronic chagasic cardiomyopathy (CCC) or megaviscerae. Inflammation driven by parasite persistence seems to be involved in the pathophysiology of the disease. However, there is also evidence of the occurrence of autoimmune events, mainly caused by molecular mimicry and bystander activation. In experimental models of disease, is well-established that T. cruzi infects the thymus and causes locally profound structural and functional alterations. The hallmark is a massive loss of CD4+CD8+ double positive (DP) thymocytes, mainly triggered by increased levels of glucocorticoids, although other mechanisms seem to act simultaneously. Thymic epithelial cells (TEC) exhibited an increase in extracellular matrix deposition, which are related to thymocyte migratory alterations. Moreover, medullary TEC showed a decreased expression of AIRE and altered expression of microRNAs, which might be linked to a disrupted negative selection of the T-cell repertoire. Also, almost all stages of thymocyte development are altered, including an abnormal output of CD4−CD8− double negative (DN) and DP immature and mature cells, many of them carrying prohibited TCR-Vβ segments. Evidence has shown that DN and DP cells with an activated phenotype can be tracked in the blood of humans with chronic Chagas disease and also in the secondary lymphoid organs and heart of infected mice, raising new questions about the relevance of these populations in the pathogenesis of Chagas disease and their possible link with thymic alterations and an immunoendocrine imbalance. Here, we discuss diverse molecular mechanisms underlying thymic abnormalities occurring during T. cruzi infection and their link with CCC, which may contribute to the design of innovative strategies to control Chagas disease pathology.
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Affiliation(s)
- Ana Rosa Pérez
- Instituto de Inmunología Clínica y Experimental de Rosario, CONICET-Universidad Nacional de Rosario, Rosario, Argentina.,Centro de Investigación y Producción de Reactivos Biológicos, Facultad de Ciencias Médicas, Universidad Nacional de Rosario, Rosario, Argentina
| | - Juliana de Meis
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,National Institute of Science and Technology on Neuroimmunomodulation, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Rio de Janeiro Research Network on Neuroinflammation, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | | | - Wilson Savino
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,National Institute of Science and Technology on Neuroimmunomodulation, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Rio de Janeiro Research Network on Neuroinflammation, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
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