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Citation
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HERO ID
6885997
Reference Type
Journal Article
Title
Differential mechanisms regarding triclosan vs. bisphenol A and fluorene-9-bisphenol induced zebrafish lipid-metabolism disorders by RNA-Seq
Author(s)
Sun, L; Ling, Y; Jiang, J; Wang, D; Wang, J; Li, J; Wang, X; Wang, H
Year
2020
Is Peer Reviewed?
Yes
Journal
Chemosphere
ISSN:
0045-6535
EISSN:
1879-1298
Volume
251
Page Numbers
126318
Language
English
PMID
32143076
DOI
10.1016/j.chemosphere.2020.126318
Web of Science Id
WOS:000533642900037
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85080121962&doi=10.1016%2fj.chemosphere.2020.126318&partnerID=40&md5=372ff820c53b7d45f24f152b8cd900a1
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Abstract
Exposure of endocrine disrupting chemicals (EDCs) is closely related to induction of obesity, nonalcoholic fatty liver disease (NAFLD) and other lipid-metabolism diseases. Herein, we compared the effects of three EDCs exposure (triclosan, bisphenol A and fluorene-9-bisphenol) on lipid metabolism in zebrfish (Danio rerio). The differential lipid-metabolism disorders were analyzed in depth through RNA-Seq and qRT-PCR, as well as assessment of the relationship between lipid disorder and RNA methylation. Histopathological observation along with varying physiological and biochemical indexes all identified that triclosan and bisphenol A induced liver fat accumulation in acute and chronic exposure. RNA-Seq analysis showed that triclosan exposure disrupted multiple physiological processes including drug metabolism, sucrose metabolism, fat metabolism and bile secretion. The dysregulation of lipid-metabolism related genes indicated that liver steatosis in triclosan and BPA-exposed zebrafish resulted from increased fatty acid synthetase, and uptake and suppression of β-oxidation. Besides, the dysregulation of pro-inflammatory genes and endoplasmic reticulum stress showed that triclosan and bisphenol A exposure not only induced occurrence of NAFLD, but also promoted progression of hepatic inflammation. However, no significant effect on lipid metabolism was observed in fluorene-9-bisphenol-exposed treatment although the larval phenotypic malformation was found compared to the control group. Moreover, EDCs exposure led to decreased global m6A level and abnormal expression of m6A modulators in larvae. Especially, the expression of demethylase FTO (fat mass and obesity-associated protein) was significantly increased in triclosan-exposure treatment. These findings are conductive for us to deeply understand the underlying molecular mechanisms regarding the obesity and NAFLD from EDCs exposure.
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