PMID- 35089383 OWN - NLM STAT- MEDLINE DCOM- 20220329 LR - 20220329 IS - 1432-0738 (Electronic) IS - 0340-5761 (Linking) VI - 96 IP - 3 DP - 2022 Mar TI - In vitro and in silico approach to study the hormonal activities of the alternative plasticizer tri-(2-ethylhexyl) trimellitate TEHTM and its metabolites. PG - 899-918 LID - 10.1007/s00204-022-03230-4 [doi] AB - Tri-(2-ethylhexyl) trimellitate (TEHTM) is a plasticizer for polyvinyl chloride (PVC) material used in medical devices. It is an alternative to di-(2-ethylhexyl) phthalate (DEHP), a well-known reprotoxic and endocrine disruptor. As plasticizers are known to easily migrate when in contact with fatty biological fluids, patient exposure to TEHTM is highly probable. However, there is currently no data on the potential endocrine-disrupting effects of its human metabolites. To evaluate the effects of TEHTM metabolites on endocrine activity, they were first synthesized and their effects on estrogen, androgen and thyroid receptors, as well as steroid synthesis, were investigated by combining in vitro and in silico approaches. Among the primary metabolites, only 4-MEHTM (4-mono-(2-ethylhexyl) trimellitate) showed agonist activities on ERs and TRs, while three diesters were TR antagonists at non-cytotoxic concentrations. These results were completed by docking experiments which specified the ER and TR isoforms involved. A mixture of 2/1-MEHTM significantly increased the estradiol level and reduced the testosterone level in H295R cell culture supernatants. The oxidized secondary metabolites of TEHTM had no effect on ER, AR, TR receptors or on steroid hormone synthesis. Among the fourteen metabolites, these data showed that two of them (4-MEHTM and 2/1-MEHTM) induced effect on hormonal activities in vitro. However, by comparing the concentrations of the primary metabolites found in human urine with the active concentrations determined in bioassays, it can be suggested that the metabolites will not be active with regard to estrogen, androgen, thyroid receptors and steroidogenesis-mediated effects. CI - (c) 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Dahbi, Laurence AU - Dahbi L AD - Derttech "Packtox", NUTOX, INSERM U1231, Universite Bourgogne Franche-Comte, 21000, Dijon, France. FAU - Farce, Amaury AU - Farce A AD - Universite de Lille, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, 59000, Lille, France. FAU - Kambia, Nicolas AU - Kambia N AD - Universite de Lille, CHU Lille, ULR 7365 GRITA-Groupe de Recherche sur les formes Injectables et les Technologies Associees, 59000, Lille, France. FAU - Severin, Isabelle AU - Severin I AD - Derttech "Packtox", NUTOX, INSERM U1231, Universite Bourgogne Franche-Comte, 21000, Dijon, France. FAU - Dine, Thierry AU - Dine T AD - Universite de Lille, CHU Lille, ULR 7365 GRITA-Groupe de Recherche sur les formes Injectables et les Technologies Associees, 59000, Lille, France. FAU - Moreau, Emmanuel AU - Moreau E AD - Universite Clermont Auvergne, INSERM U1240, Imagerie Moleculaire et Strategies Theranostiques, 63000, Clermont-Ferrand, France. FAU - Sautou, Valerie AU - Sautou V AD - Universite Clermont Auvergne, CHU Clermont Ferrand, Clermont Auvergne INP, CNRS, ICCF, 63000, Clermont-Ferrand, France. FAU - Chagnon, Marie-Christine AU - Chagnon MC AUID- ORCID: 0000-0003-1275-657X AD - Derttech "Packtox", NUTOX, INSERM U1231, Universite Bourgogne Franche-Comte, 21000, Dijon, France. Marie-Christine.Chagnon@u-bourgogne.fr. LA - eng PT - Journal Article DEP - 20220128 PL - Germany TA - Arch Toxicol JT - Archives of toxicology JID - 0417615 RN - 0 (Benzoates) RN - 0 (Endocrine Disruptors) RN - 0 (Plasticizers) RN - 0 (Receptors, Androgen) RN - 0 (Receptors, Estrogen) RN - 0 (Receptors, Thyroid Hormone) RN - 3319-31-1 (tri-(2-ethylhexyl)trimellitate) RN - 3XMK78S47O (Testosterone) RN - 4TI98Z838E (Estradiol) SB - IM MH - Benzoates/metabolism/*toxicity MH - Cell Line, Tumor MH - Computer Simulation MH - Endocrine Disruptors/metabolism/*toxicity MH - Estradiol/metabolism MH - Humans MH - Molecular Docking Simulation MH - Plasticizers/metabolism/*toxicity MH - Receptors, Androgen/drug effects/metabolism MH - Receptors, Estrogen/drug effects/metabolism MH - Receptors, Thyroid Hormone/drug effects/metabolism MH - Testosterone/metabolism OTO - NOTNLM OT - In silico OT - Medical devices OT - Steroidogenesis OT - T-screen assay OT - TEHTM OT - hER and hAR reporter gene assays EDAT- 2022/01/29 06:00 MHDA- 2022/03/30 06:00 CRDT- 2022/01/28 12:12 PHST- 2021/08/17 00:00 [received] PHST- 2022/01/12 00:00 [accepted] PHST- 2022/01/29 06:00 [pubmed] PHST- 2022/03/30 06:00 [medline] PHST- 2022/01/28 12:12 [entrez] AID - 10.1007/s00204-022-03230-4 [pii] AID - 10.1007/s00204-022-03230-4 [doi] PST - ppublish SO - Arch Toxicol. 2022 Mar;96(3):899-918. doi: 10.1007/s00204-022-03230-4. Epub 2022 Jan 28.