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Genetic models reveal cis and trans immune-regulatory activities for lincRNA-Cox2 in vivo (lungs and spleens)

ABSTRACT: Here we compare gene expression profiles between lungs and spleens following LPS in vivo injection into Wild type, lincRNA-Cox2 knockout and lincRNA-Cox2 mutant mice The aim of the experiment is to determine the cis and trans functions for lincRNA-Cox2 following in vivo LPS challenge within the spleen and lung

ORGANISM(S): Mus musculus

PROVIDER: GSE116354 | GEO | 2018/12/19

REPOSITORIES: GEO

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Genetic models reveal cis and trans immune-regulatory activities for lincRNA-Cox2 in vivo (lungs)

Project description:Here we compare gene expression profiles between lungs taken from a Wild type mouse to lungs from a lincRNA-Cox2 knockout mouse The aim of the experiment is to determine what impact lincRNA-Cox2 has on gene expression within the lung

2018-12-19 | GSE105068 | GEO

Genetic models reveal cis and trans immune-regulatory activities for lincRNA-Cox2 in vivo (lungs and spleens)

Project description:Genetic models reveal cis and trans immune-regulatory activities for lincRNA-Cox2 in vivo (lungs and spleens)

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Genetic models reveal cis and trans immune-regulatory activities for lincRNA-Cox2 in vivo

Project description:Genetic models reveal cis and trans immune-regulatory activities for lincRNA-Cox2 in vivo

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Genetic models reveal cis and trans immune-regulatory activities for lincRNA-Cox2 in vivo (macrophages)

Project description:Genetic models reveal cis and trans immune-regulatory activities for lincRNA-Cox2 in vivo (macrophages)

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Genetic models reveal cis and trans immune-regulatory activities for lincRNA-Cox2 in vivo (lungs)

Project description:Genetic models reveal cis and trans immune-regulatory activities for lincRNA-Cox2 in vivo (lungs)

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Genetic Models Reveal cis and trans Immune-Regulatory Activities for lincRNA-Cox2.

Project description:An inducible gene expression program is a hallmark of the host inflammatory response. Recently, long intergenic non-coding RNAs (lincRNAs) have been shown to regulate the magnitude, duration, and resolution of these responses. Among these is lincRNA-Cox2, a dynamically regulated gene that broadly controls immune gene expression. To evaluate the in vivo functions of this lincRNA, we characterized multiple models of lincRNA-Cox2-deficient mice. LincRNA-Cox2-deficient macrophages and murine tissues had altered expression of inflammatory genes. Transcriptomic studies from various tissues revealed that deletion of the lincRNA-Cox2 locus also strongly impaired the basal and inducible expression of the neighboring gene prostaglandin-endoperoxide synthase (Ptgs2), encoding cyclooxygenase-2, a key enzyme in the prostaglandin biosynthesis pathway. By utilizing different genetic manipulations in vitro and in vivo, we found that lincRNA-Cox2 functions through an enhancer RNA mechanism to regulate Ptgs2. More importantly, lincRNA-Cox2 also functions in trans, independently of Ptgs2, to regulate critical innate immune genes in vivo.

| S-EPMC6291222 | biostudies-literature

Transcriptome analysis of BV2 cells in response to LPS stimulation

Project description:Mouse microglia (BV2 cells) were stimulated with a TLR4 ligand (E. coli LPS, 1 µg/ml) for 4h. The Agilent SurePrint G3 Mouse Gene Expression Microarray (G4852A) was used for the analysis, which provides full coverage of genes and transcripts with the most up-to-date content, including mRNAs and lincRNAs (http://www.chem.agilent.com/store/en_US/Prod-G4852A/G4852A). BV2 cells were grown to 80% confluence for four groups: the siRNA control (Group A, cells treated with a non-specific scrambied siRNA control), the LPS-stimulated (Group B, cells treated with the siRNA control plus LPS stimulation), lincRNA-Cox2 siRNA (Group C, cells treated with an siRNA to lincRNA-Cox2), and lincRNA-Cox2 siRNA/LPS stimulated (Group D, cells treated with the lincNRA-Cox2 siRNA plus LPS stimulation). Cells were treated with the siRNAs for 24h, followed by additional culture for 4h in the presence or absence of LPS (E. coli LPS, 1 µg/ml). Total RNAs were prepared with the RNeasy Mini kit (Qiagen) according to the manufacturer’s instruction (Ambion).

2016-04-18 | E-MTAB-3450 | biostudies-arrayexpress

Genetic models reveal cis and trans immune-regulatory activities for lincRNA-Cox2 in vivo

Project description:This SuperSeries is composed of the SubSeries listed below.

2018-12-19 | GSE117379 | GEO

Genetic models reveal cis and trans immune-regulatory activities for lincRNA-Cox2 in vivo (macrophages)

Project description:Here we amplified a region in exon 5 of Ptgs2 that contains SNPs to allow us to differenitate between the C57 allele and the MOLF allele

2018-12-19 | GSE117377 | GEO

A long noncoding RNA lincRNA-EPS acts as a transcriptional brake to restrain inflammation

Project description:LincRNA-EPS is a long noncoding RNA that is expressed in macrophages and downregulated upon exposure to diverse microbial products. Analysis of macrophages from lincRNA-EPS-deficient mice revealed a specific role for this lincRNA in restraining immune response gene (IRG) expression. Mechanistically, lincRNA-EPS associates with chromatin at regulatory regions of IRGs to repress their transcription. To gain insight into the molecular function of lincRNA-EPS on chromatin, we generated ATAC-Seq libraries from wildtype and lincRNA-EPS-deficient macrophages stimulated with LPS.

2016-05-08 | GSE78873 | GEO

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