Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA279846 | ENA |
REPOSITORIES: ENA
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Project description:Our previous study has showed that complex of NF90 and nuclear factor 45 (NF45) (NF90-NF45) inhibits miRNA biogenesis through negative regulation of primary-miRNA processing step. On the other hand, miRNAs, the biogenesis of which is regulated by NF90-NF45 in hepatocellular carcinoma, are not clear. Thus, to identify the miRNAs, we performed a miRNA array using RNAs extracted from control Huh7 cells and the cells depleted of NF90. Comparison of miRNA expression profile in one non-targeting control siRNA (siNTC)- or two independent siNF90-treated Huh7 cells.
2015-03-31 | E-GEOD-67411 | biostudies-arrayexpress
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Project description:Anaysis of mRNA changes in HeLa cells following knockdown of Drosha or DGCR8. Drosha is a nuclear RNase III that carries out microRNA (miRNA) processing by cleaving primary microRNA transcript (pri-miRNA). DGCR8 is an essential co-factor of Drosha. Experiment Overall Design: siRNA against Drosha or DGCR8 were trasnfected into HeLa cells. siRNA against GFP was used as a control. Biologically duplicated total RNAs were prepared from HeLa cells, 24 hrs and 48 hrs after siRNA transfection.
2009-02-21 | E-GEOD-13639 | biostudies-arrayexpress
Project description:To identify genes regulated by complex of NF90 and nuclear factor 45 (NF45) in hepatocellular carcinoma, we performed comprehensive analyses of mRNA expression in Huh7 cells depleted of NF90. mRNA expression profile in Huh7 cells depleted of NF90.
2016-06-22 | E-GEOD-83589 | biostudies-arrayexpress
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2016-09-01 | GSE84224 | GEO
Project description:rs06-06_mirna - flg22 time course - Time course : What are the genes (incuding microRNA precursors) that are differentially regulated upon flg22 treatment? miRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of microRNA mutants? siRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of siRNA mutants? - 14-day old seedlings (Col-0 and fls2 KO) treated with 10uM of flg22 (flagellin derived peptide) over a one hour timecourse. Keywords: time course,treated vs untreated comparison
2008-06-02 | GSE10418 | GEO
Project description:rs06-06_mirna - flg22 treatment & mutants - Time course : What are the genes (incuding microRNA precursors) that are differentially regulated upon flg22 treatment? miRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of microRNA mutants? siRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of siRNA mutants? - What are the genes (incuding microRNA precursors) that are differentially regulated upon flg22 treatment? 14-day old seedlings treated with flg22 (flagellin- derived peptide). Keywords: time course,total transcriptome knowledge
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Project description:rs06-06_mirna - flagellin experiment in dcl2-dcl3-dcl4 mutant background - Time course : What are the genes (incuding microRNA precursors) that are differentially regulated upon flg22 treatment? miRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of microRNA mutants? siRNA : What are the genes (including miRNA precursors) that are differentially regulated in a set of siRNA mutants? - What are the genes (including primary miRNA transcripts) that are differentially regulated upon flg22 treatment? 14-day old seedlings (Col-0 and dcl2-dcl3-dcl4) treated with flg22 (flagellin- derived peptide). Keywords: treated vs untreated comparison
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Project description:In Arabidopsis thaliana, ARGONAUTE1 (AGO1) plays a central role in microRNA (miRNA) and small interfering RNA (siRNA)-mediated silencing. Nuclear AGO1 is loaded with miRNAs and exported to the cytosol where it associates to the rough ER to conduct miRNA-mediated translational repression, mRNA cleavage and biogenesis of phased siRNAs. These latter, as well as other cytosolic siRNAs, are loaded into cytosolic AGO1, but in which compartment this happens is not known. Moreover, the effect of stress on AGO1 localization is still unclear. Here, we show that heat stress (HS) promotes AGO1 protein accumulation, which co-localize with components of the siRNA bodies and of stress granules (SGs). AGO1 does not need SGS3, a key component of siRNA bodies, to efficiently form condensates during HS. Instead, we found that the still poorly characterized N-terminal Poly-Q domain of AGO1, which contains a prion-like domain, is sufficient to undergo phase separation. Moreover, an exposure of 1 hour to HS only moderately affected AGO1 loading by miRNAs and target cleavage, suggesting that its localization in condensates protects AGO1 rather than promote its activity in reprograming gene expressing during stress. Collectively, our work shed new light on the impact of high temperature on a main effector of RNA silencing in plants.
2024-06-22 | PXD048594 | Pride
Project description:Circulating microRNAs (miRNA) are relatively stable in plasma and are a new class of disease biomarkers. Here we present evidence that human high-density lipoprotein (HDL) transports endogenous miRNAs and delivers them to recipient cells with functional targeting capabilities. Highly-purified fractions of human HDL contain small RNAs, and the HDL-miRNA profile from normal subjects is significantly different than familial hypercholesterolemia subjects. miRNAs were demonstrated to associate with both native and reconstituted HDL particles, and reconstituted HDL injected into mice retrieved distinct miRNA profiles from normal and atherogenic models. Cellular export of miRNAs to HDL was demonstrated to be regulated by neutral sphingomyelinase. HDL-mediated delivery of miRNAs to recipient cells was demonstrated to be scavenger receptor BI-dependent. Furthermore, HDL delivery of both exogenous and endogenous miRNAs resulted in the direct targeting of mRNA reporters. Notably, HDL-miRNA from atherosclerotic subjects induced differential gene expression, with significant loss of conserved mRNA targets in cultured hepatocytes. Collectively, these observations suggest that HDL participates in a novel mechanism of intercellular communication involving the transport and delivery of miRNAs. Gene expression changes in human Huh7 cells with familial hypercholesterolemia HDL treatment. Gene expression (mRNA) profiles in human Huh7 cells treated with normal HDL (n=3) or FH HDL (n=3) in lipoprotein-depleted serum (48h).
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