Embryonic atrazine exposure alters zebrafish and human miRNAs associated with angiogenesis, cancer, and neurodevelopment
- Wirbisky, S.E., Weber, G.J., Schlotman, K.E., Sepúlveda, M.S., Freeman, J.L.
- Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 98(Pt A): 25-33 (Journal)
- Registered Authors
- Freeman, Jennifer
- Atrazine, Development, Targeting analysis, Transcriptomics, Zebrafish, miRNA
- MeSH Terms
- Embryo, Nonmammalian/drug effects
- Embryo, Nonmammalian/metabolism
- Embryo, Nonmammalian/pathology*
- Gene Expression Regulation, Developmental
- Neoplasms/drug therapy
- Neovascularization, Pathologic/drug therapy
- Neovascularization, Pathologic/genetics*
- Neovascularization, Pathologic/pathology
- Neurosecretory Systems/drug effects*
- Oligonucleotide Array Sequence Analysis
- RNA, Messenger/genetics
- Real-Time Polymerase Chain Reaction
- Reverse Transcriptase Polymerase Chain Reaction
- 27046698 Full text @ Food Chem. Toxicol.
Wirbisky, S.E., Weber, G.J., Schlotman, K.E., Sepúlveda, M.S., Freeman, J.L. (2016) Embryonic atrazine exposure alters zebrafish and human miRNAs associated with angiogenesis, cancer, and neurodevelopment. Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. 98(Pt A):25-33.
MicroRNAs (miRNAs) are short, single-stranded RNA that regulate post-transcriptional control of mRNA translation. Knowledge on the role of these critical regulators in toxicological responses in increasing, but is still limited. Atrazine is a herbicide used throughout the Midwestern US that is reported to frequently contaminate potable water supplies above the maximum contaminant level of 3 parts per billion. Atrazine is a suspected endocrine disrupting chemical and studies have begun to investigate the genetic mechanisms of toxicity; however, studies investigating epigenetic mechanisms are limited. In this study both zebrafish and human miRNAs were significantly altered in response to an embryonic atrazine exposure of 0.3, 3, or 30 ppb in zebrafish. Altered miRNAs are known to play a role in angiogenesis, cancer, or neuronal development, differentiation, and maturation. Targeted analysis of altered human miRNAs with genes previously identified to be altered by atrazine exposure revealed several targets linked to cell cycle and cell signaling. Further analysis of hsa-miRNA-126-3p, which had altered expression in all three atrazine treatments at 72 hpf, revealed alterations also occurred at 60 hpf in the 30 ppb treatment group. Results from this study indicate miRNA deregulation in zebrafish and human miRNAs following an embryonic atrazine exposure in zebrafish.
Genes / Markers
Mutation and Transgenics
Human Disease / Model Data
Sequence Targeting Reagents
Engineered Foreign Genes
Errata and Notes