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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of liver from rats treated with triiodothyronine at 0.1ug or 5ug after 1 or 3 hours

ABSTRACT: A single dose of 5 ug of Triiodothyronine (T3) was delivered subcutaneously to adult rats to stimulate hepatocyte proliferation. This was compared to rats treated without T3, or with a a submitogenic dose (0.1 ug). Livers were isolated and harvested at 1 h and 3 h post administration. A comparison was performed between no T 3 and 5 ug of T3 at 3 h and between 5ug T3 and 0.1 ug of T3 at 1 h. RNA was run on Affymetrix RAE230+2.0 arrays.

ORGANISM(S): Rattus norvegicus

SUBMITTER: mike hubank

PROVIDER: E-MEXP-1077 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Microarray analysis of mitogenic effects of T3 on the rat liver.

Bungay Anton A Selden Clare C Brown David D Malik Raza R Hubank Mike M Hodgson Humphrey H

Journal of gastroenterology and hepatology 20080820 12

<h4>Background and aim</h4>A single dose of the thyroid hormone tri-iodothyronine, T3, can enhance both size and function of normal rodent liver, which is potentially of value in the treatment of liver disease. However the mechanism of this has not been fully elucidated, and it cannot be modeled in vitro. We therefore investigated the transcriptome response to T3 in rat liver in vivo.<h4>Methods</h4>After adult rats were administered 5 microg T3 subcutaneously, a whole rat genome microarray comp ...[more]

PMID: 18717759

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Identical gene regulation patterns of triiodothyronine (T3) and selective thyroid hormone receptor modulator GC-1

Project description:This SuperSeries is composed of the following subset Series: GSE32443: Identical gene regulation patterns of triiodothyronine (T3) and selective thyroid hormone receptor modulator GC-1 [Affymetrix] GSE32444: Identical gene regulation patterns of triiodothyronine (T3) and selective thyroid hormone receptor modulator GC-1 [Illumina] Refer to individual Series

2011-10-31 | E-GEOD-32445 | biostudies-arrayexpress

Effects of triiodothyronine on human osteoblast-like cells: novel insights from a global transcriptome analysis

Project description:In order to investigate, at the mRNA level, the signaling pathways through which triiodothyronine (T3) affects osteoblast function, human mesenchymal stem cells derived from adipose tissue were subjected to a pre-established osteoinduction protocol, resulting in osteoblast-like cells, which were cultured with or without T3. RNA-Seq was performed using Illumina platform, and differential gene expression was assessed with DESeq2. Among differentially expressed genes, enrichment analysis was performed for biological processes against the Gene Ontology Consortium database, using both ClusterProfiler R package and STRING.

2022-06-20 | GSE205678 | GEO

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Effects of triiodothyronine and/or Irisin on human subcutaneous adipocytes: a global transcriptome analysis

Project description:In order to investigate, at the mRNA level, the signaling pathways through which triiodothyronine (T3) and irisin (I) affects Human subcutaneous adipocytes function, human Cultured Human subcutaneous preadipocytes were differentiated into mature adipocytes, which were cultured with T3 and/or Irisin, the control group was without treatment. RNA-Seq was performed using Illumina platform, and differential gene expression was assessed with DESeq2. Among differentially expressed genes, enrichment analysis was performed for biological processes against the Gene Ontology Consortium database, using both ClusterProfiler R package and STRING. Grant 2016/03242-3, São Paulo Research Foundation (FAPESP). Grant 409438/2016, National Council for Scientific and Technological Development (CNPq).

2023-06-28 | GSE218129 | GEO

Influence of 3,5,3'-Triiodothyronine (T3) on differentiating progenitor cells of the enteric nervous system (ENS)

Project description:Differentiation assays with neural progenitor cells of the enteric nervous system (ENS) showed elongated neurite outgrowth under influence of 3,5,3'-Triiodothyronine (concentrations 50 nm and 100 nm). For analysis, neural cells were stained with TUJ1 (beta-Tubulin III). Microarray analysis should enlighten these results on a genetical basis and give hints about the regulation pathways. We analyzed 2 groups with 3 samples each: 1 group consistent of cells treated with 100 nm T3 for 1 day and 1 control group consistens of cells without T3 treatment

2013-09-23 | E-GEOD-39634 | biostudies-arrayexpress

Rewiring of liver diurnal transcriptome rhythms by triiodothyronine (T3) supplementation

Project description:Rewiring of liver diurnal transcriptome rhythms by triiodothyronine (T3) supplementation

| PRJNA822418 | ENA

Rewiring of liver diurnal transcriptome rhythms by triiodothyronine (T3) supplementation

Project description:Diurnal (i.e., 24-hour) physiological rhythms depend on transcriptional programs controlled by a set of circadian clock genes/proteins. Systemic factors like humoral and neuronal signals, oscillations in body temperature, and food intake align physiological circadian rhythms with external time. Thyroid hormones (THs) are major regulators of circadian clock target processes such as energy metabolism, but little is known about how fluctuations in TH levels affect the circadian coordination of tissue physiology. In this study, a high triiodothyronine (T3) state was induced in mice by supplementing T3 in the drinking water, which affected body temperature, and oxygen consumption in a time-of-day dependent manner. 24-hour transcriptome profiling of liver tissue identified 37 robustly and time independently T3 associated transcripts as potential TH state markers in the liver. Such genes participated in xenobiotic transport, lipid and xenobiotic metabolism. We also identified 10 – 15 % of the liver transcriptome as rhythmic in control and T3 groups, but only 4 % of the liver transcriptome (1,033 genes) were rhythmic across both conditions – amongst these several core clock genes. In-depth rhythm analyses showed that most changes in transcript rhythms were related to mesor (50%), followed by amplitude (10%), and phase (10%). Gene set enrichment analysis revealed TH state dependent reorganization of metabolic processes such as lipid and glucose metabolism. At high T3 levels, we observed weakening or loss of rhythmicity for transcripts associated with glucose and fatty acid metabolism, suggesting increased hepatic energy turnover. In sum, we provide evidence that tonic changes in T3 levels restructure the diurnal liver metabolic transcriptome independent of local molecular circadian clocks.

2022-07-26 | GSE199998 | GEO

Insight into the role of thyroid hormone on neocortex development through global transcriptome analysis of primary cerebrocortical cells: Identification of genes regulated directly and indirectly by triiodothyronine in specific cell types

Project description:Thyroid hormones, thyroxine and triiodothyronine (T3) are crucial for cerebral cortex development acting through regulation of gene expression. To define the transcriptional program under T3 regulation we have performed RNA-Seq of T3-treated and untreated primary mouse cerebrocortical cells. The expression of 1,145 genes or 7.7% of expressed genes was changed upon T3 addition, of which 371 responded to T3 in the presence of cycloheximide indicating direct transcriptional regulation. The results were compared with available transcriptomic datasets of defined cellular types. In this way we could identify genomic targets of T3 in astrocytes and neurons, and in neuron subtypes, such as layer-specific neurons, and neurons expressing specific markers such as prepronociceptin, cholecystokinin, or cortistatin. T3 up-regulates mostly genes related to cell membrane events, such as G-protein signaling, neurotransmission, and ion transport, and down-regulates genes involved in nuclear events, such as cell division, M phase of cell cycle, and chromosome organization and segregation. Remarkably the transcriptomic changes induced by T3 sustain the transition from embryonic to adult patterns of gene expression. The results allowed us to define in molecular terms the elusive role of thyroid hormones on neocortical development.

2015-11-09 | GSE68949 | GEO

Hydrocortisone and Triiodothyronine Regulate Hyaluronate Synthesis in a Tissue–Engineered Human Dermal Equivalent through Independent Pathways

Project description:Hydrocortisone (HC) and triiodothyronine (T3) have both been shown to be capable of independently inhibiting hyaluronate (HA, hyaluronic acid) synthesis in a self-assembled human dermal equivalent (human dermal matrix). We sought to investigate the action of these two hormones in concert on extracellular matrix formation and HA inhibition in a tissue engineered human dermal matrix. RNA preparations were sent to CFG Microarray Core (E). Three replicate samples from each condition were used in the study. The RNA was amplified, labeled, and hybridized to the GLYCOv4 microarrays.

2015-04-08 | E-GEOD-56616 | biostudies-arrayexpress

Identical gene regulation patterns of triiodothyronine (T3) and selective thyroid hormone receptor modulator GC-1 [Illumina]

Project description:Synthetic selective thyroid hormone (TH) receptor (TR) modulators (STRMs) exhibit beneficial effects on dyslipidemias in animals and humans and reduce obesity, fatty liver and insulin resistance in preclinical animal models. STRMs differ from native THs in preferential binding to the TRβ subtype versus TRα, increased uptake into liver and reduced uptake into other tissues. However, selective modulators of other nuclear receptors (NRs) exhibit important gene-selective actions which have been attributed to differential effects on receptor conformation and dynamics and these effects can have profound influences in animals and humans. While there are suggestions that STRMs could exhibit such gene-specific actions, the extent to which these effects are actually observed in vivo has not been explored. Here, we show that saturating concentrations of the main active form of TH, triiodothyronine (T3), and the prototype STRM GC-1 induce identical gene-sets in livers of euthyroid and hypothyroid mice and a human cultured hepatoma cell line that only expresses TRβ, HepG2. We find one case in which GC-1 exhibits a modest gene-specific reduction in potency versus T3, at angiopoietin-like factor 4 (ANGPTL4) in HepG2. Investigation of the latter effect confirms that GC-1 acts through TRβ to directly induce this gene. However, this gene-selective GC-1 activity is not related to unusual T3 response element (TRE) sequence, unlike previously documented promoter-selective STRM actions. Together, our data suggest that T3 and GC-1 exhibit almost identical gene regulation properties and that gene-selective actions of GC-1 and similar STRMs will be subtle and rare.

2011-10-31 | GSE32444 | GEO

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