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Small RNA analysis of wildtype Mouse embryo and Adar1 null mouse embryo at E11.0 and E11.5 together with mRNA-seq results of E11.5

ABSTRACT: Adar1 is an essential gene for mouse embryonic development. Adar1 null mouse embryos dies around E11.5 because of massive apoptosis.

ORGANISM(S): Mus musculus

PROVIDER: GSE33473 | GEO | 2013/05/01

SECONDARY ACCESSION(S): PRJNA148757

REPOSITORIES: GEO

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Small RNA analysis of wildtype Mouse embryo and Adar1 null mouse embryo at E11.0 and E11.5 together with mRNA-seq results of E11.5

Project description:Adar1 is an essential gene for mouse embryonic development. Adar1 null mouse embryos dies around E11.5 because of massive apoptosis. Small RNA: 4 samples examined: wild type E11.0, ADAR1 null E11.0, wild type E11.5, ADAR1 null E11.5, mRNA-seq: wild type E11.5, ADAR1 null E11.5.

2013-05-01 | E-GEOD-33473 | biostudies-arrayexpress

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ADAR1 regulates melanoma progression via miRNAs biogenesis

Project description:Aberrant RNA-editing was observed in several human tumors, but its significance is mostly unknown. Here we show that ADAR1, a ubiquitous RNA-editing enzyme, is commonly lost in metastatic melanoma cells and specimens. Experimental ADAR1 silencing significantly alters melanoma cell morphology, facilitates proliferation and cell-cycle, and increases the tumorigenicity in-vivo. A series of ADAR1 truncation mutants establishes a novel RNA-editing-independent role for ADAR1 in controlling the nuclear and cytoplasmic processing steps of miRNA biogenesis. Altered expression of ADAR1-controled miRNAs accounts for the observed phenotype. We show that the oncogenic miR-17-5p endogenously regulates ADAR1 expression and that its genomic sequence is frequently amplified in melanoma to overexpress the mature miR-17-5p form. ADAR1 and miR-17-5p are ubiquitously expressed, suggesting the generality of this mechanism. Melanoma cell line expressing low ADAR1 levels (ADAR1-Knockdown) using shRNA technique were selected for RNA extraction and hybridization on Affymetrix microarrays. We sought to examine the alterations in the genes and microRNA expression profile in the manipulated cell system, due to ADAR1 possible involvement cancer development. To that end, we selected ADAR1-knockdown (ADAR1-KD) cells that demonstrated an enhanced aggressive phenotype both in vivo and in vitro as compared to the control cells (Control).

2012-08-31 | E-GEOD-31963 | biostudies-arrayexpress

ADAR1-editing in HeLa, p150-KO and ADAR1-KO transcriptomes

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RNA-seq of mouse alveolar macrophages (ADAR1 deficient and WT)

Project description:Whole RNA was isolated from CD11c-Cre ADAR1-deficient and WT alveolar macrophages.

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Complete embryonic E11.5 metanephric kidney analysis of wild type and Hoxa11, Hoxd11 null targeted mice

Project description:E11.5 metanephric mesenchyme and ureteric bud were dissected from the E11.5 kidney rudiment using fine manual microdissection (ureteric bud only) or both fine manual microdissection and laser capture microdissection (metanephric mesenchyme) to define the gene expression profiles of these structures. Additionally, HoxA11, HoxD11 compound null E11.5 metanephric mesenchyme was obtained through laser capture microdissection allowing analysis of possible Hox targets in kidney development. Targets from multiple biological replicates of each were generated and the expression profiles were determined using Affymetrix MOE430_v2 arrays. Keywords: embryonic metanephric kidney, kidney development, Hoxa11, Hoxd11, compound null targeted mice

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ADAR1 suppression in human astrocytes

Project description:ADAR1 regulates the accumulation of endeognouse double-stranded RNA (dsRNA), a pro-inflammatory/innate immune activator. The purpose of this study was to measure the effects of ADAR1 suppression in human astrocytes and determine RNAs regulated by ADAR1. Primary human astrocytes were culture and transfected with a scramble or ADAR1 siRNA. RNA was isolated from these cells for total RNA-seq to analyze changes in gene/repetitive element expression and RNA editing.

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Project description:To understand how ADAR1 controls genome stability, affinity purification and mass spectrometry were employed to identify the interactomes of ADAR1 with cellular extracts from HeLa cells stably expressing FLAG-ADAR1.Mass spectrometry analysis of FLAG-ADAR1 associated proteins. The differential protein bands of the immunoprecipitates from cellular extracts of HeLa cells were retrieved from silver stained SDS-PAGE, digested with trypsin and analyzed by mass spectrometry.

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Project description:To explore the binding sites of PTENα on viral or host RNAs, we performed HyperTRIBE assay of HEK293T cells overexpressing ADAR1-CD, PTENα-N(WT)-ADAR1-CD, or PTENα-N(6R/D)-ADAR1-CD fusion protein under VSV-GFP (green fluorescent protein-expressing vesicular stomatitis virus) infection.

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RNA-sequencing of splenic RNA from mice with compound mutations in ADAR1 and ZBP1

Project description:The purpose of this study was to examine the role of ZBP1 in the phenotype that develops when ADAR1 activity is missing, in particular when the Zα domain of ADAR1 is mutated. Mice homozygous for a Zα domain-mutant allele of Adar1 (Adar1mZα/mZα mice) were compared with control mice carrying one mZα allele and one wild type allele of Adar1 (Adar1wt/mZα mice) and with mice carrying one mZα and one null Adar1 allele (Adar1-/mZα mice). Adar1-/mZα mice were also compared with mice additionally deficient in ZBP1 (Adar1-/mZα Zbp1-/- mice). Given the early postnatal lethal phenotype that develops in Adar1-/mZα mice, comparisons were made in RNA isolated from spleen tissue from newborn mice of each genotype (5 mice per genotype).

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