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E-GEOD-4936

ABSTRACT: Transcription profiling of embryoid bodies treated with retinoic-acid or retinoic-acid + hedgehog agonist to measure neural targets of sonic hedgehog signaling

OTHER RELATED OMICS DATASETS IN: PRJNA343958PRJNA95891PRJNA96973

PROVIDER: E-GEOD-4936 | ExpressionAtlas | 2014-07-03

REPOSITORIES: ExpressionAtlas

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Dataset's files

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			Action	DRS
	E-GEOD-4936-analysis-methods.tsv	Tabular
	E-GEOD-4936-atlasExperimentSummary.Rdata	Rdata
	E-GEOD-4936-configuration.xml	Xml
	E-GEOD-4936-percentile-ranks.tsv	Tabular
	E-GEOD-4936.condensed-sdrf.tsv	Tabular

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Transcriptional Profiling of Hh-Treated Embryoid Bodies

Project description:This experiment was specifically designed to measure neural targets of Shh signaling, we sought to profile the genes upregulated by Hh signaling in the ventral neural tube to obtain a valid dataset. To obtain ventral-specific markers, we generated retinoic acid-treated EBs grown in the presence or absence of HH-Ag. We did not observe induction of ventral Hh markers in RA-treated constitutive Gli1FLAG EBs and used these for the control, baseline set. The presence of FoxA2, Nkx2.9 and Nkx6.1 amongst the top 10 genes based on expression levels suggests that profiling significantly enriches for Hh-dependent cell types. As expected, the benchmark standard Gli1 was not up-regulated in our array, since it is constitutively expressed in the control as well. Keywords: neural progenitors, embryoid bodies, differentiation, Hedgehog, retinoic acid

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Project description:Embryonic stem cells (ESC) are derived from blastocyst-stage embryos and are thought to be functionally equivalent to the inner cell mass in their developmental potential. ESCs pluripotency is maintained through a complex interplay of different signaling pathways and a network of transcription factors, which is centered around Oct3/4, Sox2 and Nanog. Although, in general, much is known about this pluripotency self-renewal circuitry, the molecular events that lead ESC to exit from pluripotency and begin differentiation are currently less known. Retinoic acid, an active metabolite of the vitamin A (retinol), plays important and pleiotropic roles in vertebrate embryonic development and ESC differentiation. Here we demonstrate that RA promotes early steps of ESC differentiation, and that ESC increase their capacity to synthesize RA during spontaneous differentiation as embryoid bodies, up-regulating the RA biosynthetic pathway components RDH1, RDH10, ADH3, RALDH2, and CRABP2. Microarray derived from total RNA of mESC not treated or treated with all-trans retinoic acid (ATRA) for 2 hours.

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Transcription profiling of embryoid bodies treated with retinoic-acid or retinoic-acid + hedgehog agonist to measure neural targets of sonic hedgehog signaling

Project description:This experiment was specifically designed to measure neural targets of Shh signaling, we sought to profile the genes upregulated by Hh signaling in the ventral neural tube to obtain a valid dataset. To obtain ventral-specific markers, we generated retinoic acid-treated EBs grown in the presence or absence of HH-Ag. We did not observe induction of ventral Hh markers in RA-treated constitutive Gli1FLAG EBs and used these for the control, baseline set. The presence of FoxA2, Nkx2.9 and Nkx6.1 amongst the top 10 genes based on expression levels suggests that profiling significantly enriches for Hh-dependent cell types. As expected, the benchmark standard Gli1 was not up-regulated in our array, since it is constitutively expressed in the control as well. Experiment Overall Design: There are a total of 8 samples. Four biological replicates of Retinoic-acid treated EBs (Baseline) and 4 additional biological samples of retinoic acid + Hh-Ag treated EBs (induced sample).

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