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Series GSE145574 Query DataSets for GSE145574
Status Public on Feb 20, 2020
Title Embryonic ethanol exposure alters expression of sox2 and other early transcripts in zebrafish, producing gastrulation defects
Organism Danio rerio
Experiment type Expression profiling by array
Summary Ethanol exposure during prenatal development causes fetal alcohol spectrum disorder (FASD), the most frequent preventable birth defect and neurodevelopmental disability syndrome. The molecular targets of ethanol toxicity during development are poorly understood. Developmental stages surrounding gastrulation are very sensitive to ethanol exposure. To understand the effects of ethanol on early transcripts during embryogenesis, we treated zebrafish embryos with ethanol during pre-gastrulation period and examined the transcripts by Affymetrix GeneChip microarray before gastrulation. We identified 521 significantly dysregulated genes, including 61 transcription factors in ethanol-exposed embryos. Sox2, the key regulator of pluripotency and early development was significantly reduced. Functional annotation analysis showed enrichment in transcription regulation, embryonic axes patterning, and signaling pathways, including Wnt, Notch and retinoic acid. We identified all potential genomic targets of 25 dysregulated transcription factors and compared their interactions with the ethanol-dysregulated genes. This analysis predicted that Sox2 targeted a large number of ethanol-dysregulated genes. A gene regulatory network analysis showed that many of the dysregulated genes are targeted by multiple transcription factors. Injection of sox2 mRNA partially rescued ethanol-induced gene expression, epiboly and gastrulation defects. Additional studies of this ethanol dysregulated network may identify therapeutic targets that coordinately regulate early development.
 
Overall design control vs. ethanol treated embryos
 
Contributor(s) Marrs JA, Sarmah S
Citation(s) 32127575
Submission date Feb 19, 2020
Last update date Mar 16, 2020
Contact name James A Marrs
E-mail(s) jmarrs@iupui.edu
Organization name Indiana University-Purdue University Indianapolis
Department Biology
Lab SL328
Street address 723 West Michigan Street
City Indianapolis
State/province IN
ZIP/Postal code 46202
Country USA
 
Platforms (1)
GPL1319 [Zebrafish] Affymetrix Zebrafish Genome Array
Samples (12)
GSM4321666 control-1
GSM4321667 control-2
GSM4321668 control-3
Relations
BioProject PRJNA607568

Download family Format
SOFT formatted family file(s) SOFTHelp
MINiML formatted family file(s) MINiMLHelp
Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE145574_RAW.tar 21.2 Mb (http)(custom) TAR (of CEL)
Raw data provided as supplementary file
Processed data included within Sample table

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