Synergistic Steatosis Induction in Mice: Exploring the Interactions and Underlying Mechanisms between PFOA and Tributyltin

Bibliographic Details
Title: Synergistic Steatosis Induction in Mice: Exploring the Interactions and Underlying Mechanisms between PFOA and Tributyltin
Authors: Yannick Dauwe, Lucile Mary, Fabiana Oliviero, Louise Dubois, Elodie Rousseau-Bacquie, Jelskey Gomez, Véronique Gayrard, Laïla Mselli-Lakhal
Source: Cells, Vol 13, Iss 11, p 940 (2024)
Publisher Information: MDPI AG, 2024.
Publication Year: 2024
Collection: LCC:Cytology
Subject Terms: nuclear receptor, PFAS, NAFLD, TBT, metabolism, synergism, Cytology, QH573-671
More Details: This study explores the impact of environmental pollutants on nuclear receptors (CAR, PXR, PPARα, PPARγ, FXR, and LXR) and their heterodimerization partner, the Retinoid X Receptor (RXR). Such interaction may contribute to the onset of non-alcoholic fatty liver disease (NAFLD), which is initially characterized by steatosis and potentially progresses to steatohepatitis and fibrosis. Epidemiological studies have linked NAFLD occurrence to the exposure to environmental contaminants like PFAS. This study aims to assess the simultaneous activation of nuclear receptors via perfluorooctanoic acid (PFOA) and RXR coactivation via Tributyltin (TBT), examining their combined effects on steatogenic mechanisms. Mice were exposed to PFOA (10 mg/kg/day), TBT (5 mg/kg/day) or a combination of them for three days. Mechanisms underlying hepatic steatosis were explored by measuring nuclear receptor target gene and lipid metabolism key gene expressions, by quantifying plasma lipids and hepatic damage markers. This study elucidated the involvement of the Liver X Receptor (LXR) in the combined effect on steatosis and highlighted the permissive nature of the LXR/RXR heterodimer. Antagonistic effects of TBT on the PFOA-induced activation of the Pregnane X Receptor (PXR) and Peroxisome Proliferator-Activated Receptor Gamma (PPARγ) were also observed. Overall, this study revealed complex interactions between PFOA and TBT, shedding light on their combined impact on liver health.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2073-4409
Relation: https://www.mdpi.com/2073-4409/13/11/940; https://doaj.org/toc/2073-4409
DOI: 10.3390/cells13110940
Access URL: https://doaj.org/article/b1207da5f67d450bb9feccfe5204e4f0
Accession Number: edsdoj.b1207da5f67d450bb9feccfe5204e4f0
Database: Directory of Open Access Journals
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More Details
ISSN:20734409
DOI:10.3390/cells13110940
Published in:Cells
Language:English