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Expression data from 12 and 52 weeks old Rar-alpha WT and KO male mice

ABSTRACT: Expression data from 12 and 52 weeks old Rar-alpha WT and KO male mice

PROVIDER: PRJNA563690 | ENA |

REPOSITORIES: ENA

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Expression data from 12 and 52 weeks old Rar-alpha WT and KO male mice

Project description:Primary aldosteronism (PA) is the most frequent form of secondary arterial hypertension. Mutations in different genes increase aldosterone production in PA, but additional mechanisms may contribute to increased cell proliferation and aldosterone producing adenoma (APA) development. We performed transcriptome analysis in APA and identified retinoic acid receptor alpha (RARα) signaling as a central molecular network involved in nodule formation. To understand how RARα modulates adrenal structure and function, we explored the adrenal phenotype of male and female Rarα knockout mice. Inactivation of Rarα in mice led to major structural disorganization of the adrenal cortex in both sexes, with increased adrenal cortex size in female mice and increased cell proliferation in males. Abnormalities of vessel architecture and extracellular matrix were due to decreased Vegfa expression and modifications in extracellular matrix components. On the molecular level, Rarα inactivation leads to inhibition of non-canonical Wnt signaling, without affecting the canonical Wnt pathway nor PKA signaling. Our study suggests that Rarα contributes to the maintenance of normal adrenal cortex structure and cell proliferation, by modulating Wnt signaling. Dysregulation of this interaction may contribute to abnormal cell proliferation, creating a propitious environment for the emergence of specific driver mutations in PA.

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Transcription profiling time series of Rattus norvegicus femoral fracture healing in individuals aged 6, 26 and 52 weeks

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Highly pathogenic influenza virus inhibit Inflammatory Responses in Monocytes via Activation of the Rar-Related Orphan Receptor Alpha (RORalpa)

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Cistrome profiles of Retinoids x Receptor alpha (RXR?) , Retinoic Acid Receptor alpha (RAR?), and Retinoic Acid Receptor beta (RAR?) in livers of mice treated by control and retionic acid-containing diet

Project description:Comparison between ChIP-Seq data of RAR? and RAR?, between RAR and RXR, as well as between control and retinoic acid-treatment for each investigated nuclear receptors. Mouse were treated by control diet and RA-diet for 1 days. After treatment, livers were used to do ChIP using antibodies of RXR?, RAR?, and RAR?. An aliquote of total chromatin without pull-down process by any antibodies was used as input control. A single-end read of 35bp sequencing was performed on each of ChIPed DNA and input. Sequencing data of RAR? and RAR? were compared to each other. In addtional, each of RAR? and RAR? data were compared with RXR? data. For each nuclear receptor, ChIP-Seq data prior or after RA-treatment were also compared with each other.

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RNA-sequencing of 7 weeks old mouse testes

Project description:RNA-sequencing of 7 weeks old mouse testes

| PRJNA503819 | ENA

Highly pathogenic influenza virus inhibit Inflammatory Responses in Monocytes via Activation of the Rar-Related Orphan Receptor Alpha (RORalpa)

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Effect of 52 weeks of chronic exposure to TCDD AND PCB126 on hepatic gene expression

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Aortae of 32 weeks old apoE mice

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Cooperative interaction between retinoic acid receptor-alpha and estrogen receptor in breast cancer.

Project description:Retinoic acid receptor-alpha (RAR alpha) is a known estrogen target gene in breast cancer cells. The consequence of RAR alpha induction by estrogen was previously unknown. We now show that RAR alpha is required for efficient estrogen receptor-alpha (ER)-mediated transcription and cell proliferation. RAR alpha can interact with ER-binding sites, but this occurs in an ER-dependent manner, providing a novel role for RAR alpha that is independent of its classic role. We show, on a genome-wide scale, that RAR alpha and ER can co-occupy regulatory regions together within the chromatin. This transcriptionally active co-occupancy and dependency occurs when exposed to the predominant breast cancer hormone, estrogen--an interaction that is promoted by the estrogen-ER induction of RAR alpha. These findings implicate RAR alpha as an essential component of the ER complex, potentially by maintaining ER-cofactor interactions, and suggest that different nuclear receptors can cooperate for effective transcriptional activity in breast cancer cells. RAR alpha silenced breast cancer MCF-7 cell lines or control siRNA in the presence of estrogen or a vehicle. MCF-7 cells were hormone-depleted for 3 d and treated with 100 nM estrogen for 12 h. There were three biological replicates for each of the four different groups.

2010-06-16 | E-GEOD-22213 | biostudies-arrayexpress

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