A Quantitative HILIC-MS/MS Assay of the Metabolic Response of Huh-7 Cells Exposed to 2,3,7,8-Tetrachlorodibenzo--Dioxin
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A hydrophilic interaction liquid chromatography (HILIC)-ultra high-pressure liquid chromatography (UHPLC) coupled with tandem mass spectrometry (MS/MS) method was developed and applied to profile metabolite changes in human Huh-7 cells exposed to the potent aryl hydrocarbon receptor (AHR) ligand 2,3,7,8-tetrachlorodibenzo--dioxin (TCDD). Comparisons of sensitivity (limit of detection as low as 0.01 µM) and reproducibility (84% of compounds had an interday relative standard deviation (RSD) less than 10.0%; 83% of compounds had an intraday RSD less than 15.0%) were assessed for all the metabolites. The exposure of Huh-7 cells to the hepatotoxic carcinogen TCDD at low doses (1 nM and 10 nM for 4 h and 24 h, respectively) was reflected by the disturbance of amino acid metabolism, energy metabolism (glycolysis, TCA cycle), and nucleic acid metabolism. TCDD caused a significant decrease in amino acids such as serine, alanine, and proline while promoting an increase in arginine levels with 24 h treatment. Energy metabolism intermediates such as phosphoenolpyruvate and acetyl-CoA and nucleosides such as UMP, XMP, and CMP were also markedly decreased. These results support the application of HILIC-UHPLC-MS/MS for robust and reliable analysis of the cellular response to environmentally relevant toxicants at lower doses.
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Quintas G, Castell J, Moreno-Torres M Front Pharmacol. 2023; 14:1155271.
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Singh R, Thakur L, Kumar A, Singh S, Kumar S, Kumar M Front Microbiol. 2023; 14:1152162.
PMID: 37180233 PMC: 10174324. DOI: 10.3389/fmicb.2023.1152162.
Cholico G, Orlowska K, Fling R, Sink W, Zacharewski N, Fader K Sci Rep. 2023; 13(1):4138.
PMID: 36914879 PMC: 10011583. DOI: 10.1038/s41598-023-31087-9.
Klupczynska A, Misiura M, Miltyk W, Oscilowska I, Palka J, Kokot Z Molecules. 2020; 25(20).
PMID: 33053735 PMC: 7587214. DOI: 10.3390/molecules25204639.