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Gonzalez-Rellan MJ, Parracho T, Heras V, Rodriguez A, Fondevila MF, Novoa E, Lima N, Varela-Rey M, Senra A, Chantada-Vazquez MD, Ameneiro C, Bernardo G, Fernandez-Ramos D, Lopitz-Otsoa F, Bilbao J, Guallar D, Fidalgo M, Bravo S, Dieguez C, Martinez-Chantar ML, Millet O, Mato JM, Schwaninger M, Prevot V, Crespo J, Frühbeck G, Iruzubieta P, Nogueiras R. Hepatocyte-specific O-GlcNAc transferase downregulation ameliorates nonalcoholic steatohepatitis by improving mitochondrial function. Mol Metab 2023:101776. [PMID: 37453647 PMCID: PMC10382944 DOI: 10.1016/j.molmet.2023.101776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/07/2023] [Accepted: 07/09/2023] [Indexed: 07/18/2023] Open
Abstract
O-GlcNAcylation is a post-translational modification that directly couples the processes of nutrient sensing, metabolism, and signal transduction, affecting protein function and localization, since the O-linked N-acetylglucosamine moiety comes directly from the metabolism of glucose, lipids, and amino acids. De addition and removal of O-GlcNAc of target proteins is mediated by two highly conserved enzymes: O-linked N-acetylglucosamine (O-GlcNAc) transferase (OGT) and O-GlcNAcase (OGA), respectively. Deregulation of O-GlcNAcylation has been reported to be associated with various human diseases such as cancer, diabetes, and cardiovascular diseases. The contribution of deregulated O-GlcNAcylation to the progression and pathogenesis of NAFLD remains intriguing, and a better understanding of its roles in this pathophysiological context is required to uncover novel avenues for therapeutic intervention. By using a translational approach, our aim is to describe the role of OGT and O-GlcNAcylation in the pathogenesis of NAFLD. We used primary mouse hepatocytes, human hepatic cell lines and in vivo mouse models of steatohepatitis to manipulate O-GlcNAc transferase (OGT). We also studied OGT and O-GlcNAcylation in liver samples from different cohorts of people with NAFLD. O-GlcNAcylation was upregulated in the liver of people and animal models with steatohepatitis. Downregulation of OGT in NAFLD-hepatocytes improved diet-induced liver injury in both in vivo and in vitro models. Proteomics studies revealed that mitochondrial proteins were hyper-O-GlcNAcylated in the liver of mice with steatohepatitis. Inhibition of OGT is able to restore mitochondrial oxidation and decrease hepatic lipid content in in vitro and in vivo models of NAFLD. These results demonstrate that deregulated hyper-O-GlcNAcylation favors NAFLD progression by reducing mitochondrial oxidation and promoting hepatic lipid accumulation.
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Affiliation(s)
- Maria J Gonzalez-Rellan
- Department of Physiology, CIMUS, University of Santiago de Compostela, Spain; CIBER Fisiopatologia de la Obesidad y Nutrición (CIBERobn), Spain.
| | - Tamara Parracho
- Department of Physiology, CIMUS, University of Santiago de Compostela, Spain
| | - Violeta Heras
- Department of Physiology, CIMUS, University of Santiago de Compostela, Spain
| | - Amaia Rodriguez
- CIBER Fisiopatologia de la Obesidad y Nutrición (CIBERobn), Spain; Metabolic Research Laboratory, Clínica Universidad de Navarra and IdiSNA, Pamplona, Spain
| | - Marcos F Fondevila
- Department of Physiology, CIMUS, University of Santiago de Compostela, Spain; CIBER Fisiopatologia de la Obesidad y Nutrición (CIBERobn), Spain
| | - Eva Novoa
- Department of Physiology, CIMUS, University of Santiago de Compostela, Spain; CIBER Fisiopatologia de la Obesidad y Nutrición (CIBERobn), Spain
| | - Natalia Lima
- Department of Physiology, CIMUS, University of Santiago de Compostela, Spain
| | - Marta Varela-Rey
- Gene Regulatory Control in Disease, CIMUS, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Ana Senra
- Department of Physiology, CIMUS, University of Santiago de Compostela, Spain
| | - Maria Dp Chantada-Vazquez
- Proteomic Unit, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, 15705 A Coruña, Spain
| | - Cristina Ameneiro
- Department of Biochemistry and Molecular Biology, CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
| | - Ganeko Bernardo
- CIC bioGUNE, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Technology Park of Bizkaia, Derio 48160, Bizkaia, Spain
| | - David Fernandez-Ramos
- CIC bioGUNE, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Technology Park of Bizkaia, Derio 48160, Bizkaia, Spain
| | - Fernando Lopitz-Otsoa
- CIC bioGUNE, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Technology Park of Bizkaia, Derio 48160, Bizkaia, Spain
| | - Jon Bilbao
- CIC bioGUNE, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Technology Park of Bizkaia, Derio 48160, Bizkaia, Spain
| | - Diana Guallar
- Department of Biochemistry and Molecular Biology, CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela, Spain
| | - Miguel Fidalgo
- Department of Physiology, CIMUS, University of Santiago de Compostela, Spain
| | - Susana Bravo
- Proteomic Unit, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, 15705 A Coruña, Spain
| | - Carlos Dieguez
- Department of Physiology, CIMUS, University of Santiago de Compostela, Spain; CIBER Fisiopatologia de la Obesidad y Nutrición (CIBERobn), Spain
| | - Maria L Martinez-Chantar
- CIC bioGUNE, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Technology Park of Bizkaia, Derio 48160, Bizkaia, Spain
| | - Oscar Millet
- Liver Disease Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE, Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, Building 801A, 48160 Derio, Spain. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Technology, Spain
| | - Jose M Mato
- Liver Disease Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE, Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, Building 801A, 48160 Derio, Spain. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Technology, Spain
| | - Markus Schwaninger
- University of Lübeck, Institute for Experimental and Clinical Pharmacology and Toxicology, Lübeck, Germany
| | - Vincent Prevot
- Univ. Lille, Inserm, CHU Lille, Laboratory of Development and Plasticity of the Neuroendocrine Brain, Lille Neuroscience & Cognition, UMR-S 1172, European Genomic Institute for Diabetes (EGID),F-59000 Lille, France
| | - Javier Crespo
- Gastroenterology and Hepatology Department, Marqués de Valdecilla University Hospital. Clinical and Translational Digestive Research Group, IDIVAL, Santander, Spain
| | - Gema Frühbeck
- CIBER Fisiopatologia de la Obesidad y Nutrición (CIBERobn), Spain; Metabolic Research Laboratory, Clínica Universidad de Navarra and IdiSNA, Pamplona, Spain
| | - Paula Iruzubieta
- Gastroenterology and Hepatology Department, Marqués de Valdecilla University Hospital. Clinical and Translational Digestive Research Group, IDIVAL, Santander, Spain
| | - Ruben Nogueiras
- Department of Physiology, CIMUS, University of Santiago de Compostela, Spain; CIBER Fisiopatologia de la Obesidad y Nutrición (CIBERobn), Spain; Galicia Agency of Innovation (GAIN), Xunta de Galicia, Santiago de Compostela, Spain.
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Gómez-Henao W, Tenorio EP, Sanchez FRC, Mendoza MC, Ledezma RL, Zenteno E. Relevance of glycans in the interaction between T lymphocyte and the antigen presenting cell. Int Rev Immunol 2020; 40:274-288. [PMID: 33205679 DOI: 10.1080/08830185.2020.1845331] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The immunological synapse promotes receptors and ligands interaction in the contact interface between the T lymphocyte and the antigen presenting cell; glycosylation of the proteins involved in this biological process favors regulation of molecular interactions and development of the T lymphocyte effector response. Glycans in the immunological synapse influence cellular and molecular processes such as folding, expression, and structural stability of proteins, they also mediate ligand-receptor interaction and propagation of the intracellular signaling or inhibition of uncontrolled cellular activation that could lead to the development of autoimmunity, among others. It has been suggested that altered glycosylation of proteins that participate in the immunological synapse affects the signaling processes and cell proliferation, as well as exacerbation of the effector mechanisms of T cells that trigger systemic damage and autoimmunity. Understanding the role of glycans in the immune response has allowed for advances in the development of immunotherapies in different fields through the controlled and specific activation of the immune response. This review describes the structural and biological aspects of glycans associated with some molecules present in the immunological synapse, providing information that allows understanding the function of glycosylation in the interaction between the T lymphocyte and the antigen-presenting cell, as well as its impact on signaling and development regulation of T lymphocytes effector response.
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Affiliation(s)
- Wilton Gómez-Henao
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Coyoacan; Mexico.,Cell Growth, Tissue Repair and Regeneration (CRRET), CNRS ERL 9215, Université Paris Est Créteil (UPEC), Créteil, France
| | - Eda Patricia Tenorio
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Coyoacan; Mexico
| | | | - Miguel Cuéllar Mendoza
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Coyoacan; Mexico
| | - Ricardo Lascurain Ledezma
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Coyoacan; Mexico
| | - Edgar Zenteno
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Coyoacan; Mexico
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