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Vila IK, Chamma H, Steer A, Saccas M, Taffoni C, Turtoi E, Reinert LS, Hussain S, Marines J, Jin L, Bonnefont X, Hubert M, Schwartz O, Paludan SR, Van Simaeys G, Doumont G, Sobhian B, Vlachakis D, Turtoi A, Laguette N. STING orchestrates the crosstalk between polyunsaturated fatty acid metabolism and inflammatory responses. Cell Metab 2022; 34:125-139.e8. [PMID: 34986331 PMCID: PMC8733004 DOI: 10.1016/j.cmet.2021.12.007] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 09/28/2021] [Accepted: 12/06/2021] [Indexed: 12/18/2022]
Abstract
Concerted alteration of immune and metabolic homeostasis underlies several inflammation-related pathologies, ranging from metabolic syndrome to infectious diseases. Here, we explored the coordination of nucleic acid-dependent inflammatory responses and metabolic homeostasis. We reveal that the STING (stimulator of interferon genes) protein regulates metabolic homeostasis through inhibition of the fatty acid desaturase 2 (FADS2) rate-limiting enzyme in polyunsaturated fatty acid (PUFA) desaturation. STING ablation and agonist-mediated degradation increased FADS2-associated desaturase activity and led to accumulation of PUFA derivatives that drive thermogenesis. STING agonists directly activated FADS2-dependent desaturation, promoting metabolic alterations. PUFAs in turn inhibited STING, thereby regulating antiviral responses and contributing to resolving STING-associated inflammation. Thus, we have unveiled a negative regulatory feedback loop between STING and FADS2 that fine-tunes inflammatory responses. Our results highlight the role of metabolic alterations in human pathologies associated with aberrant STING activation and STING-targeting therapies.
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Affiliation(s)
- Isabelle K Vila
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Basis of Inflammation Laboratory, Montpellier, France.
| | - Hanane Chamma
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Basis of Inflammation Laboratory, Montpellier, France
| | - Alizée Steer
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Basis of Inflammation Laboratory, Montpellier, France
| | - Mathilde Saccas
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Basis of Inflammation Laboratory, Montpellier, France
| | - Clara Taffoni
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Basis of Inflammation Laboratory, Montpellier, France
| | - Evgenia Turtoi
- Tumor Microenvironment Laboratory, Institut de Recherche en Cancérologie de Montpellier, Université de Montpellier, INSERM U1194, 34000 Montpellier, France; Platform for Translational Oncometabolomics, Biocampus, CNRS, INSERM, Université de Montpellier, Montpellier, France
| | - Line S Reinert
- Department of Biomedicine, University of Aarhus, Aarhus, Denmark
| | - Saqib Hussain
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Basis of Inflammation Laboratory, Montpellier, France
| | - Johanna Marines
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Basis of Inflammation Laboratory, Montpellier, France; Azelead, 377 rue du Pr. Blayac, 34080 Montpellier, France
| | - Lei Jin
- Center for Immunology and Microbial Disease, Albany Medical College, Albany, NY 12208, USA
| | - Xavier Bonnefont
- Institut de Génomique Fonctionnelle (IGF), Université de Montpellier, CNRS, INSERM, 34094 Montpellier, France
| | - Mathieu Hubert
- Virus and Immunity Unit, Department of Virology, Institut Pasteur, Paris, France; CNRS UMR 3569, Paris, France
| | - Olivier Schwartz
- Virus and Immunity Unit, Department of Virology, Institut Pasteur, Paris, France; CNRS UMR 3569, Paris, France
| | - Soren R Paludan
- Department of Biomedicine, University of Aarhus, Aarhus, Denmark
| | - Gaetan Van Simaeys
- Center for Microscopy and Molecular Imaging (CMMI), Université Libre de Bruxelles (ULB), Charleroi (Gosselies), Belgium; Service de Médecine Nucléaire, Hôpital Érasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Gilles Doumont
- Center for Microscopy and Molecular Imaging (CMMI), Université Libre de Bruxelles (ULB), Charleroi (Gosselies), Belgium
| | - Bijan Sobhian
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Virology Laboratory, Montpellier, France
| | - Dimitrios Vlachakis
- Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece; Division of Endocrinology and Metabolism, Center of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece; University Research Institute of Maternal and Child Health & Precision Medicine, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Andrei Turtoi
- Tumor Microenvironment Laboratory, Institut de Recherche en Cancérologie de Montpellier, Université de Montpellier, INSERM U1194, 34000 Montpellier, France; Platform for Translational Oncometabolomics, Biocampus, CNRS, INSERM, Université de Montpellier, Montpellier, France
| | - Nadine Laguette
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Basis of Inflammation Laboratory, Montpellier, France.
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