Exposure of HepaRG Cells to Sodium Saccharin Underpins the Importance of Including Non-Hepatotoxic Compounds When Investigating Toxicological Modes of Action Using Metabolomics
| Autor: | Robim Marcelino Rodrigues, Adrian Covaci, Charlie Beirnaert, Tamara Vanhaecke, Matthias Cuykx, Kris Laukens |
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| Přispěvatelé: | Experimental in vitro toxicology and dermato-cosmetology, Pharmaceutical and Pharmacological Sciences, Connexin Signalling Research Group |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Programmed cell death Endocrinology Diabetes and Metabolism Cell lcsh:QR1-502 Endogeny Pharmacology Biochemistry lcsh:Microbiology Article 03 medical and health sciences Metabolomics medicine Metabolome Mode of action Biology Molecular Biology Computer. Automation reference toxicants 030102 biochemistry & molecular biology Chemistry in vitro Lipidome 030104 developmental biology medicine.anatomical_structure Human medicine HepaRG sodium saccharin Homeostasis |
| Zdroj: | Metabolites Volume 9 Issue 11 Metabolites, Vol 9, Iss 11, p 265 (2019) |
| ISSN: | 2218-1989 |
| DOI: | 10.3390/metabo9110265 |
| Popis: | Metabolites represent the most downstream information of the cellular organisation. Hence, metabolomics experiments are extremely valuable to unravel the endogenous pathways involved in a toxicological mode of action. However, every external stimulus can introduce alterations in the cell homeostasis, thereby obscuring the involved endogenous pathways, biasing the interpretation of the results. Here we report on sodium saccharin, which is considered to be not hepatotoxic and therefore can serve as a reference compound to detect metabolic alterations that are not related to liver toxicity. Exposure of HepaRG cells to high levels of sodium saccharin (> 10 mM) induced cell death, probably due to an increase in the osmotic pressure. Yet, a low number (n = 15) of significantly altered metabolites were also observed in the lipidome, including a slight decrease in phospholipids and an increase in triacylglycerols, upon daily exposure to 5 mM sodium saccharin for 72 h. The observation that a non-hepatotoxic compound can affect the metabolome underpins the importance of correct experimental design and data interpretation when investigating toxicological modes of action via metabolomics. |
| Databáze: | OpenAIRE |
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