PMID- 34649050 OWN - NLM STAT- MEDLINE DCOM- 20220107 LR - 20220107 IS - 1873-6750 (Electronic) IS - 0160-4120 (Linking) VI - 158 DP - 2022 Jan TI - Associations between persistent organic pollutants and endometriosis: A multiblock approach integrating metabolic and cytokine profiling. PG - 106926 LID - S0160-4120(21)00551-1 [pii] LID - 10.1016/j.envint.2021.106926 [doi] AB - Humans are exposed daily to complex mixtures of chemical pollutants through their environment and diet, some of which have the potential to disrupt the bodies' natural endocrine functions and contribute to reproductive diseases like endometriosis. Increasing epidemiological and experimental evidence supports the association between endometriosis and certain persistent organic pollutants (POPs) like dioxins; however, little is known about the underlying linking mechanisms. The main objective of this study is to proof the methodological applicability and discovery potential of integrating ultra-trace mass spectrometry (MS) profiling of POP biomarkers and endogenous biomarker profiling (MS metabolomics and cytokines) in a case-control study for the etiological research of endometriosis. The approach is applied in a pilot clinical-based study conducted in France where women with and without surgically confirmed endometriosis were recruited. Serum samples were analysed with high-resolution MS for about 30 polychlorinated biphenyls (PCBs), organochlorinated pesticides and perfluoroalkyl substances (PFAS). About 600 serum metabolites and lipids were identified with targeted metabolomics using tandem MS with the Biocrates MxP(R) Quant 500 Kit. A panel of 4 pro-inflammatory cytokines were analysed using ELISA-based 4-PLEX analyser. Statistical analysis included a battery of variable selection approaches, multivariate logistic regression for single-chemical associations, Bayesian kernel machine regressions (BKMR) to identify mixture effects of POPs and a multiblock approach to identify shared biomarker signatures among high risk clusters. The results showed the positive associations between some POPs and endometriosis risk, including the pesticide trans-nonachlor Odds Ratio (95% Confidence Interval) 3.38 (2.06-5.98), p < 0.0001 and PCB 114 OR (95% CI) 1.83 (1.17-2.93), p = 0.009. The BKMR approach showed a tendency of a positive cumulative effect of the mixture, however trans-nonachlor exhibited significant associations within the mixture and interacted with other PCBs, strengthening the effects at highest concentrations. Finally, the multiblock analysis, relating the various blocks of data, revealed a latent cluster of women with higher risk of endometrioma presenting higher concentrations of trans-nonachlor, PCB 114 and dioxin-like toxic equivalents from PCBs, together with an increased inflammatory profile (i.e. elevated interleukin-8 and monocyte chemoattractant protein-1). It was also highlighted a specific metabolic pattern characterized by dysregulation of bile acid homeostasis and lipase activity. Further research will be required with larger sample size to confirm these findings and gain insight on the underlying mechanisms between POPs and endometriosis. CI - Copyright (c) 2021 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Matta, Komodo AU - Matta K AD - LABERCA, Oniris, INRAE, 44307 Nantes, France. FAU - Lefebvre, Tiphaine AU - Lefebvre T AD - LABERCA, Oniris, INRAE, 44307 Nantes, France; Faculty of Medicine, University of Nantes, Nantes, France; Department of Biology and Reproductive Medicine, University Hospital of Nantes, Nantes, France. FAU - Vigneau, Evelyne AU - Vigneau E AD - StatSC, ONIRIS, INRAE, Nantes, France. FAU - Cariou, Veronique AU - Cariou V AD - StatSC, ONIRIS, INRAE, Nantes, France. FAU - Marchand, Philippe AU - Marchand P AD - LABERCA, Oniris, INRAE, 44307 Nantes, France. FAU - Guitton, Yann AU - Guitton Y AD - LABERCA, Oniris, INRAE, 44307 Nantes, France. FAU - Royer, Anne-Lise AU - Royer AL AD - LABERCA, Oniris, INRAE, 44307 Nantes, France. FAU - Ploteau, Stephane AU - Ploteau S AD - Faculty of Medicine, University of Nantes, Nantes, France; Service de Gynecologie-obstetrique, CIC FEA, Hopital Mere Enfant, CHU Hotel Dieu, Nantes, France. FAU - Le Bizec, Bruno AU - Le Bizec B AD - LABERCA, Oniris, INRAE, 44307 Nantes, France. FAU - Antignac, Jean-Philippe AU - Antignac JP AD - LABERCA, Oniris, INRAE, 44307 Nantes, France. FAU - Cano-Sancho, German AU - Cano-Sancho G AD - LABERCA, Oniris, INRAE, 44307 Nantes, France. Electronic address: german.cano-sancho@oniris-nantes.fr. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20211011 PL - Netherlands TA - Environ Int JT - Environment international JID - 7807270 RN - 0 (Cytokines) RN - 0 (Environmental Pollutants) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Bayes Theorem MH - Case-Control Studies MH - Cytokines MH - *Endometriosis/chemically induced MH - *Environmental Pollutants/analysis/toxicity MH - Female MH - Humans MH - Persistent Organic Pollutants MH - *Polychlorinated Biphenyls OTO - NOTNLM OT - Cytokine OT - Endocrine disrupting chemicals OT - Endometriosis OT - Metabolomic OT - Multipollutant OT - Persistent organic pollutants EDAT- 2021/10/15 06:00 MHDA- 2022/01/08 06:00 CRDT- 2021/10/14 20:18 PHST- 2021/06/14 00:00 [received] PHST- 2021/09/09 00:00 [revised] PHST- 2021/10/06 00:00 [accepted] PHST- 2021/10/15 06:00 [pubmed] PHST- 2022/01/08 06:00 [medline] PHST- 2021/10/14 20:18 [entrez] AID - S0160-4120(21)00551-1 [pii] AID - 10.1016/j.envint.2021.106926 [doi] PST - ppublish SO - Environ Int. 2022 Jan;158:106926. doi: 10.1016/j.envint.2021.106926. Epub 2021 Oct 11.