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Lefebvre T, Campas M, Matta K, Ouzia S, Guitton Y, Duval G, Ploteau S, Marchand P, Le Bizec B, Freour T, Antignac JP, de Tullio P, Cano-Sancho G. A comprehensive multiplatform metabolomic analysis reveals alterations of 2-hydroxybutyric acid among women with deep endometriosis related to the pesticide trans-nonachlor. Sci Total Environ 2024; 918:170678. [PMID: 38316313 DOI: 10.1016/j.scitotenv.2024.170678] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/30/2024] [Accepted: 02/02/2024] [Indexed: 02/07/2024]
Abstract
BACKGROUND Exposure to persistent organic pollutants (POPs) has been related to the risk of endometriosis however the mechanisms remain unclear. The objective of the present study was to characterize the metabolic profiles underpinning the associations between POPs and endometriosis risk. METHODOLOGY A hospital-based case-control study was conducted in France to recruit women with and without surgically confirmed deep endometriosis. Women's serum was analyzed using gas and liquid chromatography coupled to high-resolution mass spectrometry (HRMS) to measure the levels of polychlorinated biphenyls (PCBs), organochlorinated pesticides (OCPs) and per-/polyfluoroalkyl substances (PFAS). A comprehensive metabolomic profiling was conducted using targeted HRMS and 1H nuclear magnetic resonance (1H NMR) to cover polar and non-polar fractions. A "meet-in-the-middle" statistical framework was applied to identify the metabolites related to endometriosis and POP levels, using multivariate linear and logistic regressions adjusting for confounding variables. RESULTS Fourteen PCBs, six OCPs and six PFAS were widely found in almost all serum samples. The pesticide trans-nonachlor was the POP most strongly and positively associated with deep endometriosis risk, with odds ratio (95 % confidence interval) of 2.42 (1.49; 4.12), followed by PCB180 and 167. Women with endometriosis exhibited a distinctive metabolic profile, with elevated serum levels of lactate, ketone bodies and multiple amino acids and lower levels of bile acids, phosphatidylcholines (PCs), cortisol and hippuric acid. The metabolite 2-hydroxybutyrate was simultaneously associated to endometriosis risk and exposure to trans-nonachlor. CONCLUSIONS To the best of our knowledge, this is the first comprehensive metabolome-wide association study of endometriosis, integrating ultra-trace profiling of POPs. The results confirmed a metabolic alteration among women with deep endometriosis that could be also associated to the exposure to POPs. Further observational and experimental studies will be required to delineate the causal ordering of those associations and gain insight on the underlying mechanisms.
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Affiliation(s)
- Tiphaine Lefebvre
- Oniris, INRAE, LABERCA, Nantes, France; CHU Nantes, Nantes Université, Service de Médecine et Biologie de la Reproduction, Gynécologie médicale, 38 bd Jean Monnet, Nantes, France; Faculty of Medicine, Nantes Université, France; Department of Gynecology and Obstetrics, Centre Hospitalier Départemental Vendée, 85000 la Roche sur Yon, France
| | - Manon Campas
- Centre for Interdisciplinary Research on Medicines (CIRM), Metabolomics Group, University of Liège, Belgium
| | | | - Sadia Ouzia
- Oniris, INRAE, LABERCA, Nantes, France; MetaboHUB-MELISA, MetaboHUB-ANR-11-INBS-0010, Oniris, INRAE, LABERCA, Nantes, France
| | - Yann Guitton
- Oniris, INRAE, LABERCA, Nantes, France; MetaboHUB-MELISA, MetaboHUB-ANR-11-INBS-0010, Oniris, INRAE, LABERCA, Nantes, France
| | - Gauthier Duval
- Oniris, INRAE, LABERCA, Nantes, France; CHU Nantes, Nantes Université, Service de Médecine et Biologie de la Reproduction, Gynécologie médicale, 38 bd Jean Monnet, Nantes, France
| | - Stéphane Ploteau
- CHU Nantes, Nantes Université, Service de Médecine et Biologie de la Reproduction, Gynécologie médicale, 38 bd Jean Monnet, Nantes, France; CHU Nantes, Department of Gynecology and Obstetrics, 38 bd Jean Monnet, Nantes, France
| | | | | | - Thomas Freour
- CHU Nantes, Nantes Université, Service de Médecine et Biologie de la Reproduction, Gynécologie médicale, 38 bd Jean Monnet, Nantes, France; Department of Reproductive Medicine, Dexeus University Hospital, Barcelona, Spain
| | | | - Pascal de Tullio
- MetaboHUB-MELISA, MetaboHUB-ANR-11-INBS-0010, Oniris, INRAE, LABERCA, Nantes, France
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Iovino M, Colonval M, Wilkin C, L’homme L, Lassence C, Campas M, Peulen O, de Tullio P, Piette J, Legrand-Poels S. Novel XBP1s-independent function of IRE1 RNase in HIF-1α-mediated glycolysis upregulation in human macrophages upon stimulation with LPS or saturated fatty acid. Front Immunol 2023; 14:1204126. [PMID: 37711626 PMCID: PMC10498766 DOI: 10.3389/fimmu.2023.1204126] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 08/01/2023] [Indexed: 09/16/2023] Open
Abstract
In obesity, adipose tissue infiltrating macrophages acquire a unique pro-inflammatory polarization, thereby playing a key role in the development of chronic inflammation and Type 2 diabetes. Increased saturated fatty acids (SFAs) levels have been proposed to drive this specific polarization. Accordingly, we investigated the immunometabolic reprogramming in SFA-treated human macrophages. As expected, RNA sequencing highlighted a pro-inflammatory profile but also metabolic signatures including glycolysis and hypoxia as well as a strong unfolded protein response. Glycolysis upregulation was confirmed in SFA-treated macrophages by measuring glycolytic gene expression, glucose uptake, lactate production and extracellular acidification rate. Like in LPS-stimulated macrophages, glycolysis activation in SFA-treated macrophages was dependent on HIF-1α activation and fueled the production of pro-inflammatory cytokines. SFAs and LPS both induced IRE1α endoribonuclease activity, as demonstrated by XBP1 mRNA splicing, but with different kinetics matching HIF-1α activation and the glycolytic gene expression. Interestingly, the knockdown of IRE1α and/or the pharmacological inhibition of its RNase activity prevented HIF-1α activation and significantly decreased glycolysis upregulation. Surprisingly, XBP1s appeared to be dispensable, as demonstrated by the lack of inhibiting effect of XBP1s knockdown on glycolytic genes expression, glucose uptake, lactate production and HIF-1α activation. These experiments demonstrate for the first time a key role of IRE1α in HIF-1α-mediated glycolysis upregulation in macrophages stimulated with pro-inflammatory triggers like LPS or SFAs through XBP1s-independent mechanism. IRE1 could mediate this novel function by targeting other transcripts (mRNA or pre-miRNA) through a mechanism called regulated IRE1-dependent decay or RIDD. Deciphering the underlying mechanisms of this novel IRE1 function might lead to novel therapeutic targets to curtail sterile obesity- or infection-linked inflammation.
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Affiliation(s)
- Margaud Iovino
- Laboratory of Immunometabolism and Nutrition, GIGA, ULiège, Liège, Belgium
| | - Megan Colonval
- Laboratory of Immunometabolism and Nutrition, GIGA, ULiège, Liège, Belgium
| | - Chloé Wilkin
- Laboratory of Immunometabolism and Nutrition, GIGA, ULiège, Liège, Belgium
| | - Laurent L’homme
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011-EGID, Lille, France
| | - Cédric Lassence
- Laboratory of Virology and Immunology, GIGA, ULiège, Liège, Belgium
| | - Manon Campas
- Clinical Metabolomics Group, CIRM, ULiège, Liege, Belgium
| | - Olivier Peulen
- Metastasis Research Laboratory, GIGA, ULiège, Liège, Belgium
| | | | - Jacques Piette
- Laboratory of Virology and Immunology, GIGA, ULiège, Liège, Belgium
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