Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA228921 | ENA |
REPOSITORIES: ENA
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Project description:ChIP-seq data from mouse liver over-expressing GFP and fed a PTU diet and treated with saline, or overexpressing biotinylated TRb1 and GFP and fed a PTU diet, treated with either saline or T3 Mouse liver was infected with adenovirus that either expressed only GFP or GFP and biotinylated TRb1 and were fed a PTU diet, followed by injections with only saline (GFP-only livers) or with saline or T3 (Biotinylated-TRb1 and GFP livers). ChIP assays were performed using streptavidin agarose to capture biotinylated TRb1 followed by library construction and sequencing.
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Project description:ChIP-seq data from mouse liver over-expressing GFP and fed a PTU diet and treated with saline, or overexpressing biotinylated TRb1 and GFP and fed a PTU diet, treated with either saline or T3
2013-12-18 | GSE52613 | GEO
Project description:We over-expressed biotinylated-thyroid hormone receptor beta 1 (TRb1) in mouse liver using an adenovirus in order to perform ChIP-seq experiments. These microarrays were performed to determine gene expression changes in response to tri-iodothyronine (thyroid hormone; T3) stimulation. A control GFP adenovirus was used and gene expression from these livers was also done as a comparison. We performed microarrays from Ad-GFP-infected propylthiouracil (PTU)-fed livers injected with either saline or T3 and Ad-TRb1-GFP infected livers injected with either saline or T3. RNA was extracted from livers of biotin ligase (BirA)-expressing mice that had been infected with either Ad-GFP or Ad-TRb1, fed with PTU for 3 weeks followed by saline or T3 injections for 4 consecutive days.
2013-12-18 | E-GEOD-52433 | biostudies-arrayexpress
Project description:We over-expressed biotinylated-thyroid hormone receptor beta 1 (TRb1) in mouse liver using an adenovirus in order to perform ChIP-seq experiments. These microarrays were performed to determine gene expression changes in response to tri-iodothyronine (thyroid hormone; T3) stimulation. A control GFP adenovirus was used and gene expression from these livers was also done as a comparison. We performed microarrays from Ad-GFP-infected propylthiouracil (PTU)-fed livers injected with either saline or T3 and Ad-TRb1-GFP infected livers injected with either saline or T3.
2013-12-18 | GSE52433 | GEO
Project description:Thyroid hormone receptors (TRs) are hormone-regulated transcription factors that control multiple aspects of physiology and development. TRs are expressed in vertebrates as a series of distinct isoforms that exert distinct biological roles. We wished to determine if the two most widely expressed isoforms, TRa1 and TRb1, exert their different biological effects by regulating different sets of target genes. Using stably transformed HepG2 cells and a microarray analysis, we were able to demonstrate that TRa1 and TRb1 regulate a largely overlapping repertoire of target genes in response to T3 hormone. However, these two isoforms display very different transcriptional properties on each individual target gene, ranging from a much greater T3-mediated regulation by TRa1 than by TRb1, to near equal regulation by both isoforms. We also identified TRa1 and TRb1 target genes that were regulated by these receptors in a hormone-independent fashion. We suggest that it is this gene-specific, isoform-specific amplitude of transcriptional regulation that is the likely basis for the appearance and maintenance of TRa1 and TRb1 over evolutionary time. In essence, TRa1 and TRb1 adjust the magnitude of the transcriptional response at different target genes to different levels; by altering the ratio of these isoforms in different tissues or at different developmental times, the intensity of T3 response can be individually tailored to different physiological and developmental requirements. TRa1, TRb1, or empty plasmid control stably transfected HepG2 cells were treated with 100 nM T3 or with ethanol carrier alone for 6h. Three independent biological repeats were analyzed for each of the three transformant pools (empty plasmid control, TRa1, and TRb1).
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