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Genome wide profiling of PAX8 binding stes in PCCL3 rat cells

ABSTRACT: Analysis of PAX8 binding sites by chromatin immunoprecipitation coupled with ultra-high-throughput sequencing (ChIP-seq) in PCCL3 rat cells. Results provide insight into the contribution of this regulatory factor to transcription genome-wide.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE26871 | GEO | 2012/06/28

SECONDARY ACCESSION(S): PRJNA142013

REPOSITORIES: GEO

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Genome wide profiling of PAX8 binding stes in PCCL3 rat cells

Project description:Analysis of PAX8 binding sites by chromatin immunoprecipitation coupled with ultra-high-throughput sequencing (ChIP-seq) in PCCL3 rat cells. Results provide insight into the contribution of this regulatory factor to transcription genome-wide. We generate a genome wide map of PAX8 binding sites in PCCL3 cells using as negative control an input DNA obtained just prior to Pax8 immunoprecipitation

2012-06-27 | E-GEOD-26871 | biostudies-arrayexpress

PAX8 transcriptional profiling in rat PCCL3 cells

Project description:PAX8 transcriptional profiling of rat PCCL3 cells comparing wild type cells with PAX8 silenced cells and scramble treated with PAX8 silenced cells

2012-06-28 | GSE26937 | GEO

Genome wide profiling of FOXE1 binding sites in PCCL3 rat cells

Project description:FoxE1 transcriptional profiling of rat PCCL3 cells comparing wild type cells with FoxE1 silenced cells and scramble treated with FoxE1 silenced cells.

2013-05-14 | GSE42497 | GEO

Genome wide profiling of FOXE1 binding sites in PCCL3 rat cells

Project description:FoxE1 transcriptional profiling of rat PCCL3 cells comparing wild type cells with FoxE1 silenced cells and scramble treated with FoxE1 silenced cells. Three-condition experiment, FoxE1 silenced vs. Wild type cells. Biological replicates: 4 replicates, 1pooled sample dye-swap. and FoxE1 silenced vs scramble treated cells. Biological replicates: 4 replicates, 1 pooled sample dye-swap.

2013-05-14 | E-GEOD-42497 | biostudies-arrayexpress

Genomic binding and regulation of gene expression by the thyroid carcinoma-associated PAX8-PPARG fusion protein

Project description:A chromosomal translocation results in production of an oncogenic PAX8-PPARG fusion protein (PPFP) in a subset of thyroid carcinomas. PAX8 is an important thyroid transcription factor, and PPARG is a transcription factor that plays important roles in the biology of adipocytes and macrophages, but has no known function in the thyroid. PPFP retains the DNA binding domains of both proteins. However, the genomic DNA binding sites of PPFP have not been identified, and only limited data exist to characterize gene expression in PPFP thyroid carcinomas. Therefore, we expressed PPFP in PCCL3 rat thyroid cells and used ChIP-seq to identify PPFP genomic binding sites (PPFP peaks) and RNA-seq to characterize PPFP-dependent gene expression. The genome contains ~20 000 PPFP peaks, including known PAX8 and PPARG binding sites, indicating that both DNA binding domains are functional. PPFP binds to and regulates many genes involved in cancer-related processes such as development and cell division. PPFP also binds to and regulates many genes related to mitochondria and lipid metabolism that are regulated by PPARG in adipocytes. Our data highlight the complexity of PPFP as a transcription factor and the numerous ways that it regulates thyroid oncogenesis.

2016-01-21 | GSE70354 | GEO

Glis3 regulates the expression of thyroid hormone synthetic genes in coordination with other thyroid transcription factors

Project description:Comparison of cistromes from PAX8, NKX2.1, and FOXE1 ChIP-Seq analysis using mouse thyroid gland and rat thyrocyte PCCl3 cells revealed that there is a significant overlap between GLIS3 binding regions and those of PAX8, NKX2.1, and FOXE1 in genes associated with thyroid hormone biosynthesis.

2023-04-06 | GSE207777 | GEO

Genomic binding of PAX8-PPARG fusion protein regulates cancer-related pathways and alters the immune landscape of thyroid cancer [seq]

Project description:PAX8-PPARG fusion protein (PPFP) results from a t(2;3)(q13;p25) chromosomal translocation, is found in 30% of follicular thyroid carcinomas, and demonstrates oncogenic capacity in transgenic mice. A PPARG ligand, pioglitazone, is highly therapeutic in mice with PPFP thyroid cancer. However, only limited data exist to characterize the binding sites and oncogenic function of PPFP, or to explain the observed therapeutic effect of pioglitazone. Here we used our previously characterized transgenic mouse model of PPFP follicular thyroid carcinoma to identify PPFP binding sites in vivo using ChIP-seq, and to distinguish genes and pathways regulated directly or indirectly by PPFP with and without pioglitazone treatment via integration with RNA-seq data. PPFP bound to DNA regions containing the PAX8 and/or the PPARG motif, near genes involved in lipid metabolism, the cell cycle, apoptosis, and cell motility; the binding site distribution was highly concordant with our previous study in a rat PCCL3 cell line. Most strikingly, pioglitazone induced an immune cell infiltration including macrophages and T cells only in the presence of PPFP, which may be central to its therapeutic effect.

2016-12-21 | GSE85648 | GEO

Differential gene expression analysis of iodide treated rat thyroid follicular cell line PCCl3

Project description:The inhibitory effect of supra physiological iodide concentrations on thyroid hormone synthesis (Wolff-Chaikoff effect) and thyrocyte proliferation is largely know as iodine autoregulation. However, the molecular mechanisms by which iodide excess modulate thyroid functions remains unclear. In this work, we analyzed the rat follicular cell PCCl3 transcriptome profile under untreated and treated conditions with 10-3M sodium iodide (Na/I). Serial Analysis of Gene Expression revealed several transcripts differentially expressed in response to the iodide showing that excess iodide affects almost all aspects of thyroid cell function and differentiation acting on the iodine autoregulatory mechanism through a complex process. Keywords: comparative genomic analysis PCCl3 cells were cultured under untreated and treated conditions with 10-3M NaI during 24 hours

2007-11-01 | E-GEOD-7174 | biostudies-arrayexpress

RNA-seq of immortalized rat thyrocytes (PCCl3) treated with two thyroid disrupting chemicals (ethylenethiourea and chlorpyrifos) against untreated controls

Project description:The transcriptomic dose-dependent response of rat immortalized thyrocytes to two thyroid disrupting chemicals was investigated by RNA-seq experiment. PCCl3 cells were exposed for one week to different doses of ethylenethiourea (ETU) and chlorpyrifos (CPF) and to their combinations.

2016-12-06 | E-MTAB-5269 | biostudies-arrayexpress

Gene expression profile changes upon knock-down of Pax8

Project description:In order to define the transcriptional network functionally regulated by Pax8 as well as infer its direct targets, we performed RNAi to knock-down Pax8 gene in FRTL-5 thyroid cells. Expression data from three independent silencing experiments were analyzed by microarray technology unraveling 2815 genes differentially expressed between silenced cells and controls. Of these, 1421 genes were down-regulated and 1394 genes were up-regulated 72hrs after Pax8 silencing. The results obtained suggest that Pax8 regulates numerous pathways, some of which involved in the regulation of cell cycle, thyroid cancer and apoptosis, thus confirming that Pax8 is a master regulatory gene. Rat differentiated thyroid cells from FRTL-5 line were transfected with siGENOME Pax8 siRNA (siPax8, experimental) or siGENOME Non-Targeting siRNA (ntPax8, controls). The trascriptome from three siPax8 biological replicates, 72 hours after transfection, was compared to the trascriptome from 3 control ntPax8 biological replicates. Microarray analysis was performed at gene-level using the AffymetrixGeneChip Rat Gene 1.0 ST array

2011-12-20 | E-GEOD-29341 | biostudies-arrayexpress

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