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Profile of mRNAs associated with Ago (Argonaute) 1 in normoxic and hypoxic endothelial cells

ABSTRACT: Messenger RNAs that are bound to Ago1 is to be transcriptionally or translational suppressed. Therefore the changes in Ago1-associated transcripts indicate the changes of suppression of these genes. We used microarrays to detail changes of mRNA transcripts that are associated with Ago1 in endothelial cells under normoxia and hypoxia conditions.

ORGANISM(S): Homo sapiens

PROVIDER: GSE43165 | GEO | 2013/06/30

SECONDARY ACCESSION(S): PRJNA184808

REPOSITORIES: GEO

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Profile of mRNAs associated with Ago (Argonaute) 1 in normoxic and hypoxic endothelial cells

Project description:Messenger RNAs that are bound to Ago1 is to be transcriptionally or translational suppressed. Therefore the changes in Ago1-associated transcripts indicate the changes of suppression of these genes. We used microarrays to detail changes of mRNA transcripts that are associated with Ago1 in endothelial cells under normoxia and hypoxia conditions. Human umbilical vein endothelial cells pooled from 8 different sources were subjected to normoxia (21% oxygen, Nx) or hypoxia (2% hypoxia, Hx) for 24 hr. Ago1 was immunoprecipitated with mouse anti-human Ago1 using a lysis buffer containing 0.1% NP-40. The associated RNA was extracted and hybridized on Affymetrix Human Gene 1.0 ST arrays.

2013-06-30 | E-GEOD-43165 | biostudies-arrayexpress

ago-Transcriptome of the argonaute (ago) mutant

Project description:ra04-02_ago - ago - Identification of the regulation pathways implied in adventitious root formation control in Arabidopsis - Transcription analisys of 2 different AGO1 mutants Keywords: gene knock out

2007-06-20 | GSE7989 | GEO

RNA sequencing data for hypoxic and normoxic vessels

Project description:We report the application of single-molecule-based sequencing technology for high-throughput profiling of mouse pulmonary arteries (main, right and left extralobar branches) from C57BL/6 mice exposed to 6 weeks or hypoxia (FiO2 10%) and normoxia (FiO2%)

2021-08-25 | GSE182564 | GEO

Profiling of Argonaute (AGO) 2-associated sRNAs after infection of bacterial pathogen Pseudomonas syringae

Project description:Transgenic Arabidopsis plants (AGO2::HA:AGO2) were treated with either mock (10 mM MgCl2) or Pseudomonas syringae pv. tomato (Pst) expressing avrRpt2 (R2) at a concentration of 2 x 107 cfu/ml for 14 hours. sRNAs associated with AGO1 and AGO2 were co-immunoprecipitated using antibodies against either AGO1 (AGO1-IP), or HA (hemagglutinin) (AGO2-IP). As controls, we also gel-purified the 18-28 nt fraction of the total RNAs from an AGO2 mutant (ago2-1). The co-immunoprecipitated or gel-purified RNAs were cloned and sequenced by Illumina deep sequencing. Examination of AGO-associated sRNAs in pathogen-treated or control plants

2011-05-10 | E-GEOD-26161 | biostudies-arrayexpress

Profiling of Argonaute (AGO) 2-associated sRNAs after infection of bacterial pathogen Pseudomonas syringae

2011-05-10 | GSE26161 | GEO

Analysis of gene expression in hypoxic and normoxic HeLa cells.

Project description:The purpose of experiment is to compare the mRNA expression differences between HeLa cells conditioned with normoxia 21% oxygen and hypoxia 1% oxygen at 6h and 20h.

2016-03-11 | GSE79069 | GEO

RNA-seq of HeLa cells stably overexpressing SRSF6-GFP grown under normoxic and hypoxic conditions

Project description:We used HeLa cells that overexpress GFP-tagged SRSF6 (4-fold) were grown in normal conditions (Normoxia, 21% oxygen) or hypoxic conditions (Hypoxia, 0.2% oxygen). compared the binding pattern of SRSF6 between normoxia, 4h hypoxia and 24h hypoxia.

2023-01-03 | GSE198308 | GEO

Impact of NLUCAT1 deletion on A549 cells in normoxic and hypoxic conditions

Project description:Three independent parental or NLUCAT1 CRISPR/Cas9-deleted A549 clones were cultured in normoxia (Nx) or exposed to hypoxia (Hx) at 1% O2 for 24 hours.

2019-09-04 | GSE117036 | GEO

Analysis of gene expression in hypoxic and normoxic HeLa cells.

Project description:The purpose of experiment is to compare the mRNA expression differences between HeLa cells conditioned with normoxia 21% oxygen and hypoxia 1% oxygen at 6h and 20h. Total RNA was obtained from HeLa cells for 4 different conditions, 3 biological replicate experiments were performed, resulting in a total of 12 samples.

2016-03-11 | E-GEOD-79069 | biostudies-arrayexpress

Argonaute Surveillance and Dicer-Independent priRNAs TriggerRNAi and Heterochromatin Formation

Project description:The assembly of fission yeast pericentromeric heterochromatin and generation of small interfering RNAs (siRNAs) from noncoding centromeric transcripts are mutually dependent processes. How this interdependent positive feedback loop is first triggered is a fundamental unanswered question. Here we show that two distinct Argonaute (Ago1)-dependent pathways mediate small RNA generation. RNA-dependent RNA polymerase complex (RDRC) and Dicer act on specific noncoding RNAs to generate siRNAs by a mechanism that requires the slicer activity of Ago1 but is independent of pre-existing heterochromatin. In the absence of RDRC or Dicer, a distinct class of small RNAs, called primal small RNAs (priRNAs), associate with Ago1. priRNAs are degradation products of abundant transcripts, which bind to Ago1 and target antisense transcripts that result from bidirectional transcription of DNA repeats. Our results suggest that a transcriptome surveillance mechanism based on the random association of RNA degradation products with Argonaute triggers siRNA amplification and heterochromatin assembly within DNA repeats.

2010-02-23 | GSE19734 | GEO

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