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Proline Glutamic acid and Leucine rich Protein 1 (PELP1) promotes glioblastoma progression by enhancing Wnt/β-catenin signaling

ABSTRACT: Proline Glutamic acid and Leucine rich Protein 1 (PELP1) promotes glioblastoma progression by enhancing Wnt/β-catenin signaling

PROVIDER: PRJNA543856 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9092622.fastq.gz	Fastqsanger.gz
	SRR9092623.fastq.gz	Fastqsanger.gz
	SRR9092624.fastq.gz	Fastqsanger.gz
	SRR9092625.fastq.gz	Fastqsanger.gz

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Proline Glutamic acid and Leucine rich Protein 1 (PELP1) promotes glioblastoma progression by enhancing Wnt/β-catenin signaling

Project description:We examined the transcriptional changes modulated by Proline Glutamic acid and Leucine rich Protein 1 (PELP1) by performing global transcriptome analysis. U87 cells were transfected with control siRNA or PELP1 siRNA and the RNA was isolated and utilized for RNA-seq analysis. Our results demonstrated that PELP1 modulated genes were related to inhibition of matrix metalloproteases, glioma invasion signaling, Wnt/β-catenin signaling and other pathways related to invasion and GBM signaling.

2020-04-24 | GSE131502 | GEO

PELP1 ChIP-chip from MCF-7 cells

Project description:Proline-, glutamic acid-, and leucine-rich protein 1 (PELP1) is a transcriptional coactivator that has previously been shown to collaborate with nuclear receptors. Evidence from other groups suggest that PELP1 may stimulate transcription by displacing the linker histone H1 and/or by recruiting the lysine demethylase KDM1 to demethylate H3K9me2. Also known as modulator of the non-genomic activity of estrogen receptor (MNAR), PELP1 has also been implicated promoting estrogen receptor signaling from the plasma membrane. We recently identified PELP1 a factor that interacts with the macro domain of the histone variant macroH2A1. To determine if PELP1 interacts with macroH2A1 in cells, we performed PELP1 ChIP-chip from MCF-7 cells. The pattern of PELP1 bind across the genome strongly correlates with that previously determined for macroH2A1. This data combined with additional experiments allow us to conclude that macroH2A1 regulates target gene expression in part by recruiting the transcriptional coregulator PELP1. Two PELP1 ChIP-chip biological replicates from MCF-7 human breast cancer cells are included.

2014-04-24 | E-GEOD-22254 | biostudies-arrayexpress

Cytoplasmic Localization of Proline, Glutamic Acid, Leucine-rich Protein 1 (PELP1) Induces Breast Epithelial Cell Migration through Up-regulation of Inhibitor of κB Kinase ϵ and Inflammatory Cross-talk with Macrophages

Project description:Cytoplasmic localization of proline, glutamic acid, leucine-rich protein 1 (PELP1) is observed in ∼40% of women with invasive breast cancer. In mouse models, PELP1 overexpression in the mammary gland leads to premalignant lesions and eventually mammary tumors. In preliminary clinical studies, cytoplasmic localization of PELP1 was seen in 36% of women at high risk of developing breast cancer. Here, we investigated whether cytoplasmic PELP1 signaling promotes breast cancer initiation in models of immortalized human mammary epithelial cells (HMECs). Global gene expression analysis was performed on HMEC lines expressing vector control, PELP1-wt, or mutant PELP1 in which the nuclear localization sequence was altered, resulting in cytoplasmic localization of PELP1 (PELP1-cyto). Global gene expression analysis identified that PELP1-cyto expression in HMECs induced NF-κB signaling pathways. Western blotting analysis of PELP1-cyto HMECs showed up-regulation of inhibitor of κB kinase ϵ (IKKϵ) and increased phosphorylation of the NF-κB subunit RelB. To determine whether secreted factors produced by PELP1-cyto HMECs promote macrophage activation, THP-1 macrophages were treated with HMEC-conditioned medium (CM). PELP1-cyto CM induced changes in THP-1 gene expression as compared with control cell CM. Double conditioned medium (DCM) from the activated THP-1 cells was then applied to HMECs to determine whether paracrine signaling from PELP1-cyto-activated macrophages could in turn promote migration of HMECs. PELP1-cyto DCM induced robust HMEC migration, which was reduced in DCM from PELP1-cyto HMECs expressing IKKϵ shRNA. Our findings suggest that cytoplasmic localization of PELP1 up-regulates pro-tumorigenic IKKϵ and secreted inflammatory signals, which through paracrine macrophage activation regulates the migratory phenotype associated with breast cancer initiation.

2017-01-31 | GSE81447 | GEO

PELP1 regulate medulloblastoma progression via NF-κB pathway

Project description:We examined the transcriptional changes modulated by Proline Glutamic acid and Leucine rich Protein 1 (PELP1) by performing global transcriptome analysis. Daoy medulloblastoma cells were transduced with control shRNA or PELP1 shRNA lentiviral particles and the RNA was isolated and utilized for RNA-seq analysis. Our results demonstrated that PELP1 modulated genes were related to inflammatory processes and extra cellular matrix such as inhibition of matrix metalloproteases, toll like receptor signaling, TNFR2 signaling, IL-8 signaling and NF-kB signaling.

2025-05-01 | GSE131347 | GEO

PELP1 ChIP-chip from MCF-7 cells

2014-04-24 | GSE22254 | GEO

The Estrogen Receptor Co-Regulator Protein, Proline Glutamic Acid and Leucine Rich Protein 1 (PELP1) Mediates Estrogen Rapid Signaling and Neuroprotection in the Brain

Project description:We examined the role of PELP1 in E2-ER-mediated transcription in the hippocampus under conditions of GCI by perfroming global transcriptome analysis. E2-treated FLOX and PELP1 FBKO mice were subjected to GCI followed by 24 h reperfusion and the isolated RNA was utilized for RNA-seq analysis. Our results demonstrated that PELP1 is needed for optimal activation of E2-regulated genes following GCI. Total RNA was isolated from the hippocampus of ovariectomized FLOX and PELP1 FBKO mice (implanted with E2 mini pumps) that were subjected to GCI followed by 24 h reperfusion. Illumina TruSeq RNA Sample Preparation was performed following manufacturer's protocol. Samples were run on an Illumina HiSeq 2000 in duplicate. The combined raw reads were aligned to UCSC hg19 and genes were annotated by Tophat. Genes were annotated and quantified by HTSeq-DESeq pipeline.

2015-12-07 | E-GEOD-72136 | biostudies-arrayexpress

The Estrogen Receptor Co-Regulator Protein, Proline Glutamic Acid and Leucine Rich Protein 1 (PELP1) Mediates Estrogen Rapid Signaling and Neuroprotection in the Brain

2015-12-07 | GSE72136 | GEO

Pelp1

Project description:Mus musculus Pelp1, proline, glutamic acid and leucine rich protein 1 [Source:MGI Symbol;Acc:MGI:1922523], is differentially expressed in 77 experiment(s);

| ENSMUSG00000018921 | ExpressionAtlas

Pelp1

Project description:Mus musculus Pelp1, proline, glutamic acid and leucine rich protein 1 [Source:MGI Symbol;Acc:MGI:1922523], is expressed in 37 baseline experiment(s);

| ENSMUSG00000018921 | ExpressionAtlas

Pelp1

Project description:Rattus norvegicus Pelp1, proline, glutamate and leucine rich protein 1 [Source:RGD Symbol;Acc:1306320], is differentially expressed in 17 experiment(s);

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