PUBLICATION

Mechanism of action and neurotoxic effects of chronic exposure to bisphenol F in adult zebrafish

Authors
Kim, S.S., Kim, J.L., Hwang, K.S., Park, H.C., Bae, M.A., Kim, K.T., Cho, S.H.
ID
ZDB-PUB-220831-2
Date
2022
Source
The Science of the total environment   851(Pt 2): 158258 (Journal)
Registered Authors
Park, Hae-Chul
Keywords
Bisphenol F, Neurobehavior, Neurochemicals, Neurotoxicity, Transcriptomics, Zebrafish
MeSH Terms
  • Animals
  • Benzhydryl Compounds*/toxicity
  • Choline/metabolism
  • Dehydroepiandrosterone
  • Ecosystem
  • Environmental Pollutants*/toxicity
  • Estradiol/metabolism
  • Gonadotropin-Releasing Hormone/metabolism
  • Hydrocortisone
  • Kynurenine/metabolism
  • Ligands
  • Neurosteroids*
  • Pregnenolone/metabolism
  • Sulfates/metabolism
  • Zebrafish/physiology
PubMed
36030852 Full text @ Sci. Total Environ.
CTD
36030852
Abstract
Although bisphenol F (BPF), the main replacement for bisphenol A, has been commonly used in polycarbonate production, its neurotoxicity and the underlying mechanisms remain poorly understood. To address this knowledge gap, this study aimed to assess the neurotoxicity caused by chronic exposure to BPF and to identify its underlying mechanisms. We exposed adult zebrafish chronically to BPF at environmentally relevant concentrations (0.001, 0.01, and 0.1 mg/L) for 4 weeks. The results revealed that with BPF crossing the blood-brain barrier and bioaccumulating in brain tissues, chronic exposure to BPF resulted in anxiety-like behaviors and disruptions in learning and memory function in adult zebrafish. Furthermore, BPF toxicity in the zebrafish brain involved the dysregulation of metabolic pathways for choline and kynurenine in neurotransmitter systems and for 17β-estradiol, cortisol, pregnenolone-sulfate, and Dehydroepiandrosterone (DHEA)-sulfate in neurosteroid systems. RNA-seq analysis revealed that BPF exposure affected metabolic pathways, calcium signaling pathways, neuroactive ligand-receptor interactions, tight junctions, gap junctions, and the gonadotropin-releasing hormone signaling pathway. Our results indicate that chronic exposure to BPF alters the neurochemical profile of the brain and causes neurobehavioral effects, such as anxiety and cognitive decline. Overall, the multimodal approach, including behavioral and neurochemical profiling technologies, has great potential for the comprehensive assessment of potential risks posed by environmental pollutants to human and ecosystem health.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping