The thyroid hormone receptors regulate the expression of microRNAs with key roles in skin homeostasis
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA418948 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR6303480.fastq.gz | Fastqsanger.gz | |||
| SRR6303481.fastq.gz | Fastqsanger.gz | |||
| SRR6303472.fastq.gz | Fastqsanger.gz | |||
| SRR6303482.fastq.gz | Fastqsanger.gz | |||
| SRR6303473.fastq.gz | Fastqsanger.gz |
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Project description:The role of the nuclear receptors (TRs) of thyroid hormones in cutaneous miRNA has been studied using RNAseq in a mice model
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Project description:Tagged versions of thyroid hormone receptors alpha (TRa) and beta (TRb) were stably transfected in two C17.2 cell lines, C17.2a and C17.2b, respectively. Cells were treated with 10-7 M T3 for 6, 12 or 24h or left untreated. We performed DGE by sequencing all polyA RNA according to a SAGE-derived method. Differential gene expression after T3 treatment was computed and the T3 responses induced by the two receptors were compared. We could conclude that, in a similar environment, target genes are only partially shared and that a significant proportion show receptor preference and even selectivity. Examination of thyroid hormone target genes over time in two cell lines (C17.2a, C17.2b), each expressing one of the thyroid hormone receptors (alpha, beta).
2012-12-31 | E-GEOD-38539 | biostudies-arrayexpress
Project description:Tagged versions of thyroid hormone receptors alpha (TRa) and beta (TRb) were stably transfected in two C17.2 cell lines, C17.2a and C17.2b, respectively. We performed an affinity-based purification of chromatin (ChAP), and high-throughput sequencing was used to assess binding sites of both receptors (ChAP-Seq). Standard ChIP-Seq for RXR was also performed in C17.2a cells. These data allow us to compare binding sites for both receptors and to conclude that they were only partially redundant, with co-existence of receptor-specific sites. Examination of binding sites of the two thyroid hormone receptors (alpha, beta) in two cell lines (C17.2a, C17.2b), each expressing one of the receptors. Examination of RXR binding sites in C17.2a cells.
2012-12-31 | E-GEOD-38347 | biostudies-arrayexpress
Project description:Tagged versions of thyroid hormone receptors alpha (TRa) and beta (TRb) were stably transfected in two C17.2 cell lines, C17.2a and C17.2b, respectively. We performed an affinity-based purification of chromatin (ChAP), and high-throughput sequencing was used to assess binding sites of both receptors (ChAP-Seq). Standard ChIP-Seq for RXR was also performed in C17.2a cells. These data allow us to compare binding sites for both receptors and to conclude that they were only partially redundant, with co-existence of receptor-specific sites.
2012-12-31 | GSE38347 | GEO
Project description:Tagged versions of thyroid hormone receptors alpha (TRa) and beta (TRb) were stably transfected in two C17.2 cell lines, C17.2a and C17.2b, respectively. Cells were treated with 10-7 M T3 for 6, 12 or 24h or left untreated. We performed DGE by sequencing all polyA RNA according to a SAGE-derived method. Differential gene expression after T3 treatment was computed and the T3 responses induced by the two receptors were compared. We could conclude that, in a similar environment, target genes are only partially shared and that a significant proportion show receptor preference and even selectivity.
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Project description:NCoR1 (Nuclear receptor Co-Repressor) and SMRT (Silencing Mediator of Retinoid and Thyroid hormone receptor) are well-recognized coregulators of nuclear receptor (NR) action. However, their unique roles in the regulation of thyroid hormone (TH) signaling in specific cell types have not been determined. To accomplish this we generated a mouse model that lacked function of either NCoR1 or SMRT or both in the liver only. Despite both corepressors being present in the liver, SMRT had no ability to regulate TH signaling when deleted in either euthyroid or hypothyroid animals. In contrast, disruption of NCoR1 action confirmed that it is the principal mediator of TH sensitivity in vivo. While SMRT played little role in TH signaling alone, when disrupted in combination with NCoR1 it greatly accentuated the activation of hepatic lipogenesis regulated by NCoR1. Thus, corepressor specificity exists in vivo and NCoR1 is the principal regulator of TH action in the liver. However, both NCoR1 and SMRT collaborate to control hepatic lipogenesis and lipid storage, which likely reflects their cooperative activity in regulating the action of multiple NRs including the thyroid hormone receptor (TR). RNA was extracted from livers from 3 individual mice for each group (Double-floxed, Liver specific-SMRT knock out, and Liver specific-double knock out); all were euthyroid, female mice
2014-11-21 | E-GEOD-54192 | biostudies-arrayexpress
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).
2009-08-08 | E-GEOD-17561 | biostudies-arrayexpress
Project description:We gathered in a single database available RNAseq and ChIPseq data to better characterize the target genes of the thyroid hormone receptors in several cell types. This database can serve as a resource to analyze the mode of action of the hormone. Also, it is an easy-handling convenient tool to obtain information on specific genes in regards to T3 regulation, or extract larger list of genes of interest based on the users’ criteria. Overall, this atlas is a unique compilation of recent sequencing data focusing on thyroid hormones, their receptors, mode of action, targets and roles which may profit researchers within the field. A preliminary analysis indicates extensive variations in the repertoire of target genes which transcription is upregulated by chromatin-bound nuclear receptor. Although it has a major influence, chromatin accessibility is not the only parameter that determines the cellular selectivity of hormonal response.
2022-08-12 | GSE210975 | 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.
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Project description:NCoR1 (Nuclear receptor Co-Repressor) and SMRT (Silencing Mediator of Retinoid and Thyroid hormone receptor) are well-recognized coregulators of nuclear receptor (NR) action. However, their unique roles in the regulation of thyroid hormone (TH) signaling in specific cell types have not been determined. To accomplish this we generated a mouse model that lacked function of either NCoR1 or SMRT or both in the liver only. Despite both corepressors being present in the liver, SMRT had no ability to regulate TH signaling when deleted in either euthyroid or hypothyroid animals. In contrast, disruption of NCoR1 action confirmed that it is the principal mediator of TH sensitivity in vivo. While SMRT played little role in TH signaling alone, when disrupted in combination with NCoR1 it greatly accentuated the activation of hepatic lipogenesis regulated by NCoR1. Thus, corepressor specificity exists in vivo and NCoR1 is the principal regulator of TH action in the liver. However, both NCoR1 and SMRT collaborate to control hepatic lipogenesis and lipid storage, which likely reflects their cooperative activity in regulating the action of multiple NRs including the thyroid hormone receptor (TR).
2014-11-21 | GSE54192 | GEO