PUBLICATION
Progestins alter photo-transduction cascade and circadian rhythm network in eyes of zebrafish (Danio rerio)
- Authors
- Zhao, Y., Fent, K.
- ID
- ZDB-PUB-160224-10
- Date
- 2016
- Source
- Scientific Reports 6: 21559 (Journal)
- Registered Authors
- Keywords
- Environmental sciences, Neurophysiology
- MeSH Terms
-
- Androstenes/metabolism*
- Animals
- Circadian Rhythm/genetics*
- Endocrine Disruptors/toxicity
- Eye/drug effects
- Eye/metabolism*
- Gene Expression Regulation, Developmental/drug effects
- Gonads/drug effects
- Gonads/metabolism
- Progesterone/metabolism*
- Progestins/metabolism*
- Water Pollutants, Chemical/toxicity
- Zebrafish/genetics
- Zebrafish/growth & development
- Zebrafish Proteins/biosynthesis
- PubMed
- 26899944 Full text @ Sci. Rep.
Citation
Zhao, Y., Fent, K. (2016) Progestins alter photo-transduction cascade and circadian rhythm network in eyes of zebrafish (Danio rerio). Scientific Reports. 6:21559.
Abstract
Environmental progestins are implicated in endocrine disruption in vertebrates. Additional targets that may be affected in organisms are poorly known. Here we report that progesterone (P4) and drospirenone (DRS) interfere with the photo-transduction cascade and circadian rhythm network in the eyes of zebrafish. Breeding pairs of adult zebrafish were exposed to P4 and DRS for 21 days with different measured concentrations of 7-742 ng/L and 99-13ยด650 ng/L, respectively. Of totally 10 key photo-transduction cascade genes analyzed, transcriptional levels of most were significantly up-regulated, or normal down-regulation was attenuated. Similarly, for some circadian rhythm genes, dose-dependent transcriptional alterations were also observed in the totally 33 genes analyzed. Significant alterations occurred even at environmental relevant levels of 7 ng/L P4. Different patterns were observed for these transcriptional alterations, of which, the nfil3 family displayed most significant changes. Furthermore, we demonstrate the importance of sampling time for the determination and interpretation of gene expression data, and put forward recommendations for sampling strategies to avoid false interpretations. Our results suggest that photo-transduction signals and circadian rhythm are potential targets for progestins. Further studies are required to assess alterations on the protein level, on physiology and behavior, as well as on implications in mammals.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping