PUBLICATION
Fluroxypyr-1-methylheptyl ester interferes with the normal embryogenesis of zebrafish by inducing apoptosis, inflammation, and neurovascular toxicity
- Authors
- An, G., Park, H., Lim, W., Song, G.
- ID
- ZDB-PUB-210501-55
- Date
- 2021
- Source
- Comparative biochemistry and physiology. Toxicology & pharmacology : CBP 247: 109069 (Journal)
- Registered Authors
- Keywords
- Angiogenesis, Embryo development, Fluroxypyr-1-methylheptyl ester, Neurotoxicity, Zebrafish model
- MeSH Terms
-
- Animals
- Apoptosis/drug effects
- Embryo, Nonmammalian/drug effects*
- Embryonic Development/drug effects*
- Glycolates/toxicity*
- Inflammation/chemically induced*
- Water Pollutants, Chemical/toxicity*
- Zebrafish/embryology*
- PubMed
- 33930526 Full text @ Comp. Biochem. Physiol. C Toxicol. Pharmacol.
Citation
An, G., Park, H., Lim, W., Song, G. (2021) Fluroxypyr-1-methylheptyl ester interferes with the normal embryogenesis of zebrafish by inducing apoptosis, inflammation, and neurovascular toxicity. Comparative biochemistry and physiology. Toxicology & pharmacology : CBP. 247:109069.
Abstract
Fluroxypyr-1-methylheptyl ester (FPMH) is a synthetic auxin herbicide used to regulate the growth of post-emergence broad-leaved weeds. Although acute exposure to FPMH increases the mortality of several fish species in the juvenile stage, the developmental toxicity of FPMH in aquatic vertebrates has not yet been investigated. In the present study, we assessed the developmental toxicity of FPMH using zebrafish models that offer many advantages for studying toxicology. During embryogenesis, survival rates gradually decreased with increasing FPMH concentrations and exposure times. At 120 h post-fertilization, FPMH-exposed zebrafish larvae showed various abnormalities such as small eye size, heart defects, enlarged yolk sac, and shortened body length. The study results confirmed the induction of apoptosis in the anterior body of zebrafish and upregulation of inflammatory gene expression. Further, defects in vascular networks, especially the loss of central arteries and abnormal aortic arch structures, were seen in the fli1:eGFP transgenic zebrafish model. Neurotoxicity of FPMH was examined using mbp:eGFP zebrafish and which displayed compromised myelination following FPMH administration. Our study has demonstrated the mechanisms underlying FPMH toxicity in developing zebrafish that is a representative model of vertebrates.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping