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PRMT1 and CSNK1a1 control epidermal progenitor maintenance (PRMT1/CSNK1a1 transcriptome profiling data sets)

ABSTRACT: PRMT1 and CSNK1a1 control epidermal progenitor maintenance (PRMT1/CSNK1a1 transcriptome profiling data sets)

PROVIDER: PRJNA432779 | ENA |

REPOSITORIES: ENA

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PRMT1 and CSNK1a1 control epidermal progenitor maintenance (PRMT1/CSNK1a1 transcriptome profiling data sets)

Project description:Here we determine the target gene sets controlled by PRMT1 or CSNK1a1 in maintaining the undifferentiated state of primary human keratinocytes.

2018-02-02 | GSE110049 | GEO

PRMT1 and CSNK1a1 control epidermal progenitor maintenance

Project description:PRMT1 and CSNK1a1 control epidermal progenitor maintenance

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PRMT1 and CSNK1a1 control epidermal progenitor maintanence (PRMT1 ChIP-seq data set)

Project description:PRMT1 and CSNK1a1 control epidermal progenitor maintanence (PRMT1 ChIP-seq data set)

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PRMT1 and CSNK1a1 control epidermal progenitor maintanence (PRMT1 ChIP-seq data set)

Project description:Here we determine the genome-wide binding sites of PRMT1 in primary human keratinocytes. We also investigated the impact of casein kinase inhibitor D4476 on PRMT1 genomic binding.

2018-02-02 | GSE110050 | GEO

PRMT1 and CSNK1a1 control epidermal progenitor maintenance

Project description:This SuperSeries is composed of the SubSeries listed below.

2018-01-25 | GSE81942 | GEO

Targeting epigenetic networks mediated by Prmt1 and Kdm4c in acute myeloid leukemia

Project description:Transcriptional deregulation plays a major role in acute myeloid leukemia, identification of epigenetic modifying enzymes essential for the maintenance of oncogenic transcription programs holds the key to better understanding the biology and designing effective therapeutic strategies for the disease. Here we provide experimental evidence showing the functional involvement and therapeutic potentials of targeting PRMT1 with H4R3 methyltransferase activity in various MLL and non-MLL leukemias. PRMT1 is necessary but not sufficient for leukemic transformation, which requires co-recruitment of KDM4C with H3K9 demethylase activity by chimeric transcription factors to mediate epigenetic reprogramming. Inhibition of KDM4C/PRMT1 suppresses transcription and transformation ability of MLL fusions and MOZ-TIF2, revealing a novel and targetable epigenetic circuitry mediated by PRMT1 and KDM4C in acute leukemia.

2016-01-14 | E-MTAB-3322 | biostudies-arrayexpress

PRMT1-mediated FLT3 arginine methylation is required for maintenance of FLT3-ITD+ Acute Myeloid Leukemia

Project description:The presence of FLT3-ITD mutations in patients with acute myeloid leukemia (AML) is associated with poor clinical outcome. FLT3 tyrosine kinase inhibitors (TKIs), although effective in kinase ablation, do not eliminate FLT3-ITD+ leukemia stem cells (LSCs) which are potential sources of disease relapse, prompting us to ask whether FLT3-ITD protein regulates the AML LSCs survival through a kinase-independent mechanism. Here, we show that expression of PRMT1, the primary type I arginine methyltransferase, significantly increases in LSC-enriched CD34+CD38- populations relative to normal counterparts. Genetic PRMT1 depletion blocked AML CD34+ cell survival, and had more potent effects in AML cells from patients harboring FLT3-ITD. Our genome wide analysis of gene expression and PRMT1 conditional KO mouse study confirmed that PRMT1 preferentially cooperates with FLT3-ITD contributing to AML cell maintenance. Mechanistically, PRMT1 catalyzed FLT3-ITD protein methylation at arginines 972/973, and PRMT1 promoted leukemia cell growth in a FLT3 methylation-dependent manner. Moreover, effects of FLT3-ITD methylation in AML cells were in part due to crosstalk with FLT3-ITD phosphorylation at tyrosine 969 (Y969). Importantly, FLT3 methylation persisted in FLT3-ITD+ AML cells following TKI (AC220) treatment, indicating that methylation occurs independently of kinase activity. Finally, in both patient-derived xenograft (PDX) and murine AML models, combined administration of AC220 with a type I PRMT inhibitor (MS023) enhanced elimination of FLT3-ITD+ AML relative to AC220 treatment alone. Our study demonstrates that PRMT1-mediated FLT3 methylation promotes LSC activity and suggests that combining PRMT1 inhibition with FLT3 TKI treatment could be a promising approach to selectively target FLT3-ITD+ LSCs.

2021-11-10 | GSE122435 | GEO

Roles of ESRPs in maintenance of epidermal transcriptome

Project description:Roles of ESRPs in maintenance of epidermal transcriptome

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Toxoplasma gondii arginine methyltransferase 1 (PRMT1) regulates parasite counting during tachyzoite cell division

Project description:PRMT1 is thought to be responsible for the majority of PRMT activity in Toxoplasma gondii, but its exact function is unknown. We generated T. gondii mutants lacking PRMT1 (∆prmt1) by deletion of the PRMT1 gene. ∆prmt1 parasites exhibit morphological defects during cell division and grow slowly, and this phenotype reverses in the complemented strain ∆prmt::PRMT1mRFP. PRMT1 localizes primarily in the cytoplasm with enrichment at the centrosome, and the strain lacking PRMT1 is unable to segregate progeny accurately. Unlike wild-type and complemented parasites, ∆prmt1 parasites have abnormal daughter buds, perturbed centrosome stoichiometry, and loss of synchronous replication. Whole genome expression profiling demonstrated differences in expression of cell cycle regulated genes in ∆prmt1 relative to the complemented ∆prmt1::PRMT1mRFP and parental wild-type strains, but these changes did not correlate with a specific block in cell cycle. Although PRMT1’s primary biological function was previously proposed to be methylation of histones, our genetic studies suggest that the most critical function of PRMT1 is within the centrosome as a regulator of daughter cell counting to assure the proper replication of the parasite. RNA samples were isolated in triplicates from RH-hxgprt parent strain (W), PRMT1 knockout (K) strain and PRMT1 knockout strain complemented with RFP-tagged PRMT1 protein (C). Parasites were grown for 32h at 37C. Samples were hybridized to the Toxoplasma gondii Affymetrix microarray (ToxoGeneChip: http://ancillary.toxodb.org/docs/Array-Tutorial.html). Hybridization data was preprocessed with Robust Multi-array Average (RMA) and normalized using per chip and per gene median polishing and analyzed using the software package GeneSpring GX (Agilent Technologies).

2015-09-18 | E-GEOD-73177 | biostudies-arrayexpress

Prmt1-mediated translation regulation is a crucial vulnerability of cancer

Project description:Through an shRNA screen we have identified Prmt1 as a genetic vulnerability of p53/Rb-null murine osteosarcoma cells. Depletion of Prmt1 in p53-deficient cells impairs tumor initiation and maintenance in vitro and in vivo. Mechanistic studies reveal that translation-associated pathways are enriched for Prmt1 downstream targets, implicating a role of Prmt1 in translation control. In particular, we have shown that loss of Prmt1 leads to a the decrease in arginine methylation of the translation initiation complex, thereby disrupting its assembly and inhibiting translation. We also observed that p53/Rb-null cells are sensitive to p53-induced translation stress. Analysis of the human tumor cell Achilles data set further reveals that Prmt1 and translation-associated pathways converge on the same functional networks. We propose that targeted therapy directed to inhibition of Prmt1 and its associated translation-related pathways represents a novel and promising therapeutic strategy for p53-deficient cancer cells that exhibit dependencies on translation stress response.

2018-01-06 | GSE93309 | GEO

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