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Homo sapiens

ABSTRACT: Transcriptomic profiling of HeLa cells treated with miR-15a, miR-16, miR-503 and control-miR

OTHER RELATED OMICS DATASETS IN: E-GEOD-53280

PROVIDER: PRJNA231560 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR1049360.fastq.gz	Fastqsanger.gz
	SRR1049361.fastq.gz	Fastqsanger.gz
	SRR1049362.fastq.gz	Fastqsanger.gz
	SRR1049359.fastq.gz	Fastqsanger.gz

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Transcriptomic profiling of HeLa cells treated with miR-15a, miR-16, miR-503 and control-miR

Project description:To have a global picture of the targets of the miR-15 family, we assessed transcriptome changes, by deep-sequencing, of HeLa cells transfected with 3 members of the miR-15 family (miR-15a, miR-16 or miR-503) or a control miRNA (cel-miR-231). We observed a very extensive overlap between the genes down-regulated by these 3 miRNAs, as expected for miRNAs belonging to the same family. transcriptmic profiles of HeLa cells treated miR-15a, miR-16, miR-503 and control-miR were generated by deep sequencing, using Illumina HiSeq2000.

2014-07-18 | E-GEOD-53279 | biostudies-arrayexpress

Transcriptomic profiling of HeLa cells treated with miR-15a, miR-16, miR-503 and control-miR

2014-07-18 | GSE53279 | GEO

T cell activation decreases microRNA-15a/16 levels as a mechanism to promote MEK1-ERK1/2-Elk1 signaling for optimal proliferative capacity

Project description:While microRNAs (miRs) have been extensively studied in the context of malignancy and tumor progression, their functions in regulating T cell activation are less clear. We found reduced levels of miR-15a/16 at 3-18 h post-T cell receptor (TCR) stimulation, suggesting a role in shaping T cell activation. An inducible miR15a/16 transgenic mouse model was developed to determine how elevating miR-15a/16 levels during early stages of activation would affect T cell proliferation and to identify TCR signaling pathways regulated by this miR pair. Doxycyclin (DOX) induced expression of miR-15a/16 from 0-18 h post-TCR stimulation decreased ex vivo proliferation as well as in vivo antigen-specific proliferation. Bioinformatic and proteomic approaches were combined to identify MEK1 as a target of miR-15a/16. MEK1 targeting by miR-15a/16 was confirmed using miR mimics that decreased MEK1 containing the 3’-UTR target nucleotide sequence (UGCUGCUA) but did not decrease MEK1 containing a mutated control sequence (AAAAAAAA). Phosphorylation of downstream signaling molecules ERK1/2 and Elk1 were decreased with DOX-induced miR-15a/16 expression. In addition to MEK1, ERK1 was subsequently found to be targeted by miR-15a/16, with DOX induced miR-15a/16 reducing total ERK1 levels in T cells. These findings show that TCR stimulation reduces miR-15a/16 levels at early stages of T cell activation to facilitate increased MEK1 and ERK1, and this promotes sustained MEK1-ERK1/2-Elk1 signaling required for optimal proliferation.

2022-04-04 | PXD030935 | Pride

hsa-miR-503, hsa-miR-103, and hsa-miR-494 genome wide target profiles [RNA-Seq and RIP-Seq]

Project description:We constructed a genome wide target profile of hsa-miR-503, hsa-miR-103, and hsa-miR-494 by sequencing RNA isolated from Ago2 immunoprecipitations and total RNA samples following transfection of the respective miRNA in mature duplex form Examination of mRNA levels in HeLa cells and Ago2 immunoprecipitations from HeLa cells following miR-503, miR-103, or miR-494 mature duplex or control siRNA transfection

2015-02-04 | E-GEOD-64615 | biostudies-arrayexpress

Genome-wide hsa-miR-503, hsa-miR-103, and hsa-miR-494 target profiles [array]

Project description:Gene expression profile following transfection with miR-503, miR-103, or miR-494 mature duplex Examination of mRNA levels in HeLa cells following transfection of miR-503, miR-103, or miR-494 mature duplex, control siRNA against GFP, or mock transfection (lipofectamine 2000 alone)

2015-02-04 | E-GEOD-64364 | biostudies-arrayexpress

Homo sapiens

Project description:Transcriptomic profiling of HeLa cells treated with miR-744-5p and control-miR

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Deletion of miR-15a/16-1 in murine germinal center B-cells.

Project description:Given the tumor suppressing function of miR-15a/16-1 cluster, we studied its role in the germinal center B-cells that give rise to most lymphoid malignancies.

2021-09-09 | PXD021323 | Pride

Homo sapiens

Project description:Transcriptomic profiling of HeLa cells treated with miR-29b-2-5p and control-miR

| PRJNA305265 | ENA

Homo sapiens

Project description:Transcriptomic profiling of HeLa cells treated with miR-let-7i-3p and control-miR

| PRJNA286123 | ENA

Identification of a set of miRNAs differentially expressed in transiently TIA-depleted HeLa cells by genome-wide profiling

Project description:Background: T-cell intracellular antigen (TIA) proteins function as regulators of cell homeostasis. These proteins control gene expression globally at multiple levels in response to dynamic regulatory changes and environmental stresses. Herein we identified a micro(mi)RNA signature associated to transiently TIA-depleted HeLa cells and analyzed the potential role of miRNAs combining genome-wide analysis data on mRNA and miRNA profiles. Results: Using high-throughput miRNA expression profiling, transient depletion of TIA-proteins in HeLa cells was observed to promote significant and reproducible changes (>2-fold, FDR<0.0001) affecting to a pool of up-regulated miRNAs (miR-30b*, miR125a-3p, miR-193a-5p, miR-197_MM2, miR-203, miR-210, miR-371-5p, miR-373*, miR-483-5p, miR-492, miR-498, miR-503, miR-572, miR-586, miR-612, miR-615, miR-623, miR-625, miR-629, miR-638, miR-658, miR-663, miR-671, miR-769-3p and miR-744). Differential expression analysis of some miRNAs was validated by reverse transcription and real time PCR. By target prediction and combined analysis of the genome-wide expression profiles of the mRNAs and miRNAs identified in TIA-depleted HeLa cells, we detected concomitant connections between up-regulated miRNAs and putative and experimental targeted mRNAs. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes database analyses suggest that targeted mRNAs are related with biological processes associated to the regulation of DNA-dependent transcription, signal transduction and multicellular organismal development as well as with the enrichment of pathways in cancer, focal adhesion, regulation of actin cytoskeleton and MAPK and Wnt signalling pathways, respectively. Conclusion: All this considered, these observations suggest that specific miRNAs could act as potential mediators of the epigenetic switch linking transcriptomic dynamics and cell phenotypes mediated by TIA proteins.

2013-02-06 | GSE41213 | GEO

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