Danio rerio
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA318414 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Cortisol-treated zebrafish embryos develop into pro-inflammatory adults with aberrant immune gene regulation
| PRJNA318502 | ENA
Project description:Chronic early life stress can affect development of the neuroendocrine stress system, leading to its persistent dysregulation and consequently increased disease risk in adulthood. One contributing factor is thought to be epigenetic programming in response to chronic glucocorticoid exposure during early development. We have previously shown that zebrafish embryos treated chronically with cortisol develop into adults with constitutively elevated whole body cortisol and aberrant immune gene expression. The objective of the experiments reported here was to further characterize the phenotype of those adults. We find that adult zebrafish derived from cortisol-treated embryos have aberrant cortisol tissue distribution and dynamics, which correlate with differential transcriptional activity of key glucocorticoid-responsive regulatory genes klf9 and fkbp5 in blood and brain.
2019-10-28 | GSE137987 | GEO
Project description:Chronic early life stress increases adult susceptibility to numerous health problems linked to chronic inflammation. One way that this may occur is via glucocorticoid-induced developmental programming. To gain insight into such programming, we treated zebrafish embryos with cortisol and examined the effects on adults. In adulthood, the treated fish maintained elevated basal cortisol levels in the absence of exogenous cortisol, and constitutively mis-expressed genes involved in defense response and its regulation. Adults derived from cortisol-treated embryos displayed defective tailfin regeneration, heightened basal expression of pro-inflammatory genes, and failure to appropriately regulate those genes following injury or immunological challenge. These results support the hypothesis that chronically elevated glucocorticoid signaling early in life directs development of a pro-inflammatory adult phenotype, at the expense of immunoregulation and somatic regenerative capacity. 30 samples total were analyzed. 9 caudal fins samples (0, 2 and 4dpa), 3 blood samples and 3 muscle samples from adults exposed to DMSO control as embryos. 9 caudal fins samples (0, 2 and 4dpa), 3 blood samples and 3 muscle samples from adults exposed to cortisol (1 micromolar) as embryos.
2016-06-01 | E-GEOD-80260 | biostudies-arrayexpress
Project description:Chronic early life stress increases adult susceptibility to numerous health problems linked to chronic inflammation. One way that this may occur is via glucocorticoid-induced developmental programming. To gain insight into such programming, we treated zebrafish embryos with cortisol and examined the effects on adults. In adulthood, the treated fish maintained elevated basal cortisol levels in the absence of exogenous cortisol, and constitutively mis-expressed genes involved in defense response and its regulation. Adults derived from cortisol-treated embryos displayed defective tailfin regeneration, heightened basal expression of pro-inflammatory genes, and failure to appropriately regulate those genes following injury or immunological challenge. These results support the hypothesis that chronically elevated glucocorticoid signaling early in life directs development of a pro-inflammatory adult phenotype, at the expense of immunoregulation and somatic regenerative capacity.
2016-06-01 | GSE80260 | GEO
Project description:Response to low-dose cortisol treatment in zebrafish embryos [larvae]
| PRJNA318296 | ENA
Project description:Zebrafish (Danio rerio) model system have used widespread vertebrate investigations for genetic and cell biological analyses, and is suitable for small molecular screens such as chemical, toxicity and drug in order to use for human diseases and drug discovery . Recently, These powerful zebrafish model increasingly apply to human metabolic disease such as obesity and diabetes and toxicology. Despite a lot of advantages, proteomics research at zebrafish has received little interest in comparison with genetic and biological research using histology and in situ hybridization. Protein lysine acetylation is one of the most known post-translational modifications with dynamic and reversibly controlled by lysine acetyltransferase such as histone acetyltransferases and lysine deacetylase such as histone deacetylases and sirtuins family.Also, during the past year, global lysine acetylome studies using MS-based proteomics approach was in diverse species such as human, mouse, E. coli, Yeast and plants. Based on global acetylome data, our understanding of the roles of lysine acetylation in various cellular processes has increased. . The aim of this study was to identify Lysine acetylation in zebrafish embryos and determine the homology from Human at modified site level. Here we showed the global lysine acetylation study in Zebrafish embryos using MS-based zebrafish embryos.
2016-10-10 | PXD003455 | Pride