Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Microrna expression profile in ADAR1 p110 overexpression

ABSTRACT: The change in Microrna expression profile in ADAR1 p110 overexpression.

ORGANISM(S): Homo sapiens

SUBMITTER: Naama Margolis

PROVIDER: E-MTAB-11574 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

miR-126 governs human leukemia stem cell quiescence and therapeutic resistance

Project description:In acute myeloid leukemia (AML), leukemia stem cells (LSC) play a central role in disease progression and recurrence due to their intrinsic capacity for self-renewal and chemotherapy resistance. Whereas epigenetic regulation balances normal blood stem cell self-renewal and fate decisions, mutation and dysregulation of epigenetic modifiers are now considered fundamental to leukemia initiation and progression. Alterations in miRNA function represent a non-canonical epigenetic mechanism influencing malignant hematopoiesis, however the function of miRNA in LSC remains undetermined. Here we show that miRNA profiling of fractionated AML populations defines an LSC-specific signature that is highly predictive of patient survival. Gain of function genetic analysis demonstrated that miR-126 restrained cell cycle progression, prevented LSC differentiation, and increased LSC self-renewal. miR-126 promoted chemo-resistance, preserving LSC quiescence in part through suppression of the G0 to G1 gatekeeper, CDK3. Thus, in AML, miRNAs influence patient outcome through post-transcriptional regulation of stemness programs in LSC. 74 primary patient normal karyotype AML samples were analyzed for miRNA expression.

2016-02-01 | E-GEOD-55770 | biostudies-arrayexpress

A cross-comparison of technologies for the detection of microRNAs from FFPE samples of hepatoblastoma patients [NanoString]

Project description:This work highlights similarities and differences between three platforms (next-generation sequencing, microarray and NanoString) for detecting miRNAs and compares their strengths and weaknesses. miRNA expression profiles were determined in Hepatoblastoma FFPE samples using a NanoString platform.

2015-05-03 | E-GEOD-62017 | biostudies-arrayexpress

microRNA expression profiling of human sarcoma cell lines (~68) in the Molecular Pharmacology Branch, DTP, DCTD NCI collection of human cell lines

Project description:Characterization of ~68 cell lines derived from human sarcoma and 5 normal counterpart cells, including drug sensitivity testing, gene expression profiling and microRNA expression profiling have been completed. Data and tools for searching these data will be made publicly available through the NCI Developmental Therapeutics Program. The raw data (RCC files) are provided through the GEO website. Sarcoma represents a variety of cancers at arise from cells of mesenchymal origin and have seen limited treatment advances in the last decade. Drug sensitivity data coupled with the transcription and microRNA profiles of a cohort of sarcoma cell lines may help define novel treatment paradigms. For each cell line, microRNA expression was measured on nCounter miRNA Expression Arrays (Nanostring Technologies), providing multiplexed, digital detection and counting of 800 human microRNA's. Please note that there are 2 replicates included in the study: A-204-rep1 and A-204-rep2, ES-4-rep1 and ES-4-rep2 resulting total 77 samples.

2015-08-01 | E-GEOD-69470 | biostudies-arrayexpress

Expression data from E2f7/E2f8 and E2f1/E2f2/E2f3 null and wild type liver along with E2f7/E2f8 null and wild type trophoblast giant cells (nCounter)

Project description:To understand the underlying cause and mechanisms of changes in hepatocyte ploidy upon Albumin-Cre mediated deletion of E2f7&8 and Mx1-Cre mediated deletion of E2f1,2&3 and germline deleted trophoblast giant cells, we analysed global gene expression of 6 weeks and 2 months liver tissues. RNA was extracted from liver tissues using trizol method and Arcturus PicoPure RNA Isolation Kit for laser capture microdisected trophoblast giant cells. Gene deletion in samples confirmed by PCR genotyping of DNA isolated from each sample.

2012-08-31 | E-GEOD-32353 | biostudies-arrayexpress

NCI Sarcoma Cell Line Panel

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2015-08-01 | E-GEOD-69524 | biostudies-arrayexpress

E2f7/E2f8 and E2f1/E2f2/E2f3 null and wild type liver along with E2f7/E2f8 null and wild type trophoblast giant cells

Project description:This SuperSeries is composed of the following subset Series: GSE32353: Expression data from E2f7/E2f8 and E2f1/E2f2/E2f3 null and wild type liver along with E2f7/E2f8 null and wild type trophoblast giant cells (nCounter) GSE32354: Expression data from E2f7/E2f8 and E2f1/E2f2/E2f3 null liver (Affymetrix) Refer to individual Series

2012-08-31 | E-GEOD-32355 | biostudies-arrayexpress

Transcriptome comparison between CCR2+ and CCR2- classical monocytes in SIV-infected Macaca nemestrina

Project description:Monocytes have been categorized in three main subpopulations based on CD14 and CD16 surface expression. Classical monocytes are the most abundant subset in the blood. They express a CD14+CD16-CCR2+ phenotype, which confers on them the ability to migrate to inflammatory sites by quickly responding to CCL2 signaling. Here we identified and characterized the surge and expansion of a novel monocyte subset during SIV and HIV infection. They were undistinguishable from classical monocytes regarding CD14 and CD16 expression, but did not express surface CCR2. Transcriptome analysis of sorted cells confirmed that they represent a distinct subpopulation that expresses lower levels of inflammatory cytokines and activation markers than their CCR2+ counterparts. They exhibited impaired phagocytosis and deficient chemotaxis in response to CCL2 and CCL7, besides being refractory to SIV infection. We named these cells atypical CCR2- classical (ACC) monocytes, and believe they play an important role in AIDS pathogenesis, possibly reflecting an anti-inflammatory response against the extreme immune activation observed during SIV and HIV infection. Antiretroviral therapy caused this population to decline in both macaque and human subjects, suggesting that this atypical phenotype may be induced by viral replication. Expression profiling by NanoString nCounter gene expression system. Classical monocytes (CD14++CD16-) from six SIV-infected macaques (day 14 post inoculation) were sorted in two groups according to CCR2 expression.

2012-03-01 | E-GEOD-27559 | biostudies-arrayexpress

Combinatorial analysis of miRNA and mRNA expression in pancreatic ductal adenocarcinoma (PDAC)_miRNA

Project description:miRNAs are known to be involved in PDAC tumorigenesis, but only a few biologically relevant gene targets have been identified. Here we show that three miRNAs (miR-21, miR-23a and miR-27a) act in concert for the cooperative suppression of several tumor suppressor genes of which we experimentally validated PDCD4, BTG2 and NEDD4L. The synergistic inhibition of this triple miRNA combination is capable of reducing PDAC growth in a mouse model greater than inhibition of oncomiR-21 alone. Patients samples of normal pancreas (n=9) or pancreatic ductal adenocarcinoma (PDAC; n=9) were retrieved during surgery and placed in RNA Later stabilization fluid and then kept at minus 80 until required.

2013-12-30 | E-GEOD-41369 | biostudies-arrayexpress

Immune Gene Profiling in Healthy and HBV-exposed Cord Blood Immune Cells

Project description:The newborn immune system is characterized by an impaired Th1-associated immune response. Hepatitis B virus (HBV) transmitted from infected mothers to newborns is thought to exploit the newborns’ immune system immaturity by inducing a state of immune tolerance that facilitates HBV persistence. Contrary to this hypothesis, we demonstrate here that HBV exposure in utero triggers a state of trained immunity, characterized by innate immune cell maturation and Th1 development, which in turn enhances the ability of cord blood immune cells to respond to bacterial infection in vitro. These training effects are associated with an alteration of the cytokine environment characterized by low IL-10 and, in most cases, high IL-12p40 and IFN-α2. Our data uncover a potentially symbiotic relationship between HBV and its natural host and highlight the plasticity of the fetal immune system following viral exposure in utero. RNA was extracted from 15 cord blood samples comprising of healthy cord blood monocytes (n=4), HBV-exposed cord blood monocytes (n=3), healthy cord blood plasmacytoid dendritic cells (n=4), and HBV-exposed cord blood plasmacytoid dendritic cells (n=4). Healthy adult peripheral blood monocytes (n=3) were included for comparison. The immune profile was analyzed using Nanostring and nCounter® GX Human Immunology Kit v1, comprising probes for a total of 511 immune genes.

2015-06-30 | E-GEOD-65389 | biostudies-arrayexpress

MicroRNAs Cooperatively Inhibit a Network of Tumor Suppressor Genes to Promote Pancreatic Tumor Growth and Progression

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2013-12-30 | E-GEOD-41372 | biostudies-arrayexpress