Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

The distribution of individual miRNA species between high-molecular weight and low-molecular weight RISC complexes by small RNA sequencing in thyroid cancer cell lines

ABSTRACT: The distribution of individual miRNA species between high-molecular weight and low-molecular weight RISC complexes by small RNA sequencing in thyroid cancer cell lines

PROVIDER: PRJNA609056 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
	SRR11193100.fastq.gz	Fastqsanger.gz
	SRR11193101.fastq.gz	Fastqsanger.gz
	SRR11193102.fastq.gz	Fastqsanger.gz
	SRR11193103.fastq.gz	Fastqsanger.gz
	SRR11193094.fastq.gz	Fastqsanger.gz

Items per page:

1 - 5 of 10

Similar Datasets

The distribution of individual miRNA species between high-molecular weight and low-molecular weight RISC complexes by small RNA sequencing in thyroid cancer cell lines

Project description:Thyroid cancer is the most prevalent malignancy of the endocrine system. We and others have shown that several microRNAs, which are ~21-24nt post-transcriptional gene regulators, are aberrantly expressed in anaplastic thyroid cancer (ATC) and papillary thyroid cancer (PTC) tissues and cell lines. In the cell, miRNAs are bound to Argonaute (AGO) proteins as low molecular weight RNA Induced Silencing Complexes (LMW-RISCs) that can then assemble into high molecular weight RISCs (HMW-RISCs) that also include additional proteins and mRNA. In this study, we sought to analyze the association of miRNAs across RISC complexity in ATC and PTC. For both ATC and PTC lines, miRNAs were enriched in HMW-RISC and LMW-RISC fractions compared with intermediate fractions or very low molecular weight (AGO-poor) fractions. Furthermore, 60% of all miRNAs were more abundant in LMW-RISC versus HMW- RISC fractions by ~2-4 fold. Surprisingly, miR-21-5p, one of the most abundant miRNAs in both ATC and PTC lines, was consistently one the least abundant miRNAs in HMW-RISC and the most enriched miRNA in LMW-RISC fractions. These findings suggest that miR-21 may be uniquely distributed in RISCs relative to other miRNAs. Furthermore, the methodology described here is a useful way to assess the relative magnitude of miR-21association with HMW and LMW-RISCs and may help to reveal the true roles of this miRNA in thyroid cancer development, progression, and treatment.

2020-02-28 | GSE146015 | GEO

Optimizing high molecular weight extractions

Project description:Optimizing high molecular weight extractions

| PRJNA1114081 | ENA

Small RNAs in Arabidopsis thaliana and its RISC complexes

Project description:RNA populations in Arabidopsis thaliana and its RISC complexes Keywords: Highly parallel pyrosequencing

2007-02-21 | GSE6478 | GEO

Analysis of High Molecular Weight RNA-induced silencing complex (HMW-RISC) in CD8+ T cells identifies miR-7 as a modulator of T cell activation

Project description:To identify the miRNAs expected to be potent in suppressing targets, we followed HMW RISC formation upon activation of CD8+ T cells. We show that while most miRNAs distribute between HMW and LMW RISC in activated T cells, several miRNAs were dominant in one complex over the other. Among these, miR-7 is enriched in HMW RISC and inhibition of miR-7 upon T cell activation leads to increased production of IL-2 and expression of IL-2-regulated proteins including the α-subunit of the IL-2 receptor, CD25; transferrin receptor, CD71; and amino acid transporter, CD98, which are direct miR-7 targets. Our data support a model where recruitment of miR-7 to HMW RISC restrains IL-2 signalling and the metabolic processes regulated by IL-2 and thus modulates T cell activation.

2020-06-04 | GSE151555 | GEO

Analysis of High Molecular Weight RNA-induced silencing complex (HMW-RISC) in CD8+ T cells identifies miR-7 as a modulator of T cell activation

Project description:Analysis of High Molecular Weight RNA-induced silencing complex (HMW-RISC) in CD8+ T cells identifies miR-7 as a modulator of T cell activation

| PRJNA636360 | ENA

Slicing-Independent RISC Activation Requires the Argonaute PAZ Domain

Project description:Small RNAs regulate the genetic networks through a ribonucleoprotein complex called the RNA induced silencing complexes (RISC), which in mammals contains at its center one of four Argonaute proteins (Ago1-4). A key regulatory event in the RNAi and miRNA pathways is Ago loading, where double stranded small RNA duplexes are incorporated into RISC (pre-RISC) and then become single stranded (mature-RISC), a process that is not well understood. The Agos contain an evolutionary conserved PAZ (Piwi/Argonaute/Zwille) domain whose primary function is to bind the 3’-end of small RNAs. We created multiple Paz domain disrupted Ago mutant proteins and studied their biochemical properties and biological functionality in cells. We found that the Paz domain is dispensable for Ago loading of slicing-competent RISC. In contrast, in the absence of slicer activity or slicer substrate duplex RNAs, Paz-disrupted Agos bound duplex siRNAs but were unable to unwind/eject the passenger strand and form functional RISC complexes. We have discovered that the highly conserved Paz domain plays an important role in RISC activation, providing new mechanistic insights into how miRNAs regulate genes, as well as new insights for future design of miRNA and RNAi-based therapeutics.

2012-07-12 | GSE39146 | GEO

Effectiveness of low-molecular-weight heparin for prevention of deep venous thrombosis after surgery for colorectal cancer in Japanese patients: a randomized controlled phase III trial

Project description:Interventions: low-molecular-weight heparin after surgery no treatment Primary outcome(s): The efficacy of low-molecular-weight heparin to prevent deep venous thrombosis after surgery for colorectal cancer Study Design: Parallel Randomized

| 2645751 | ecrin-mdr-crc

Molecular markers of predictive value associated with low birth weight

Project description:Sub-optimal fetal development is associated with an increased risk of developing cardiovascular disease, type 2 diabetes (T2D) and adiposity later in life. However, definitions of intrauterine growth restriction (IUGR) and small for gestational age (SGA) are based on simple statistical approaches that may misclassify infants with a normal developmental profile and vice versa. We used an unbiased global profiling approach to identify gene expression patterns in umbilical cord tissue from 38 infants and identified a set of 466 genes which separated the subjects into 2 distinct groups – one biased towards lower birth weight and one biased towards normal birth weight. The data suggest that approximately 30% of children of normal size have a molecular profile more typical of impaired fetal development and who may be on a programmed trajectory. Differences in expression between the two groups encompassed 384 upregulated and 82 downregulated genes. Molecular profiling at birth may have utility in identifying markers that potentially reflect antenatal developmental and may be predictive of future phenotypic development after birth. Importantly, it may provide an alternative to the current classification of infants using birth weights. RNA from umbilical cord tissue from full term neonates was extracted and hybridized. Separation into 2 distinct groups, independent of birth weight, but based solely on gene expression levels was analysed by Genespring. After appropriate statistical analysis, one group was keenly associated with a higher birth weight (22 samples) while the other was associated with a lower birth-weight (18 samples). Technical replicates were included for all 40 samples.

2011-10-20 | E-GEOD-24818 | biostudies-arrayexpress

Identification of microRNA-668 and microRNA-489 targets by RISC immunoprecipitation

Project description:MicroRNAs inhibits their target mRNA translation by forming RISC complex. Immunoprecipitation of RISC will pull down both microRNA and their target mRNAs. To systemetically examine the potential targets of microRNA-668 and microRNA-489, HEK293 cells were overexpressed with negative control, microRNA-668, or microRNA-489 mimics. Both total RNA samples and RNA samples from RISC complex pulled down by Ago-2 immunoprecipitation were examined by RNA-seq.

2019-07-27 | GSE117805 | GEO

Differential RISC association of endogenous human microRNAs predicts their inhibitory potential

Project description:It has previously been assumed that the generally high stability of microRNAs (miRNAs) reflects their tight association with Argonaute (Ago) proteins, essential components of the RNA-induced silencing complex (RISC). However, recent data have suggested that the majority of mature miRNAs are not, in fact, Ago associated. Here, we demonstrate that endogenous human miRNAs vary widely, by >100-fold, in their level of RISC association and show that the level of Ago binding is a better indicator of inhibitory potential than is the total level of miRNA expression. While miRNAs of closely similar sequence showed comparable levels of RISC association in the same cell line, these varied between different cell types. Moreover, the level of RISC association could be modulated by overexpression of complementary target mRNAs. Together, these data indicate that the level of RISC association of a given endogenous miRNA is regulated by the available RNA targetome and predicts miRNA function.

2014-05-30 | GSE58127 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data