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Gene expression induced in HEK293 by treatment with the differentiating agents all-trans retinoic acid (tRA) and N6,2'-O-dibutyryl-cAMP (cAMP)

ABSTRACT: This gene array analysis shows that the transcriptome of HEK293, representing low-differentiated human embryonic kidney cells, cultured in presence of tRA and cAMP differentiating agents, is consistent with a genetic program relevant to kidney development

ORGANISM(S): Homo sapiens

PROVIDER: GSE62722 | GEO | 2016/09/06

SECONDARY ACCESSION(S): PRJNA264953

REPOSITORIES: GEO

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Gene expression induced in HEK293 by treatment with the differentiating agents all-trans retinoic acid (tRA) and N6,2'-O-dibutyryl-cAMP (cAMP)

Project description:This gene array analysis shows that the transcriptome of HEK293, representing low-differentiated human embryonic kidney cells, cultured in presence of tRA and cAMP differentiating agents, is consistent with a genetic program relevant to kidney development Comparison of HEK293 cells grown in standard contitions or in presence of differentiating agents. Cells were seeded in 10 cm dishes, cultured for 3 days either in complete medium or in medium supplemented with tRA and cAMP, harvested, and spun down before RNA isolation. Comparative analysis allowed us to identify genes transcriptionally by tRA/cAMP.

2016-09-06 | E-GEOD-62722 | biostudies-arrayexpress

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Retinoic acid exerts disease stage-dependent effects on pristane-induced lupus

Project description:We previously showed that all-trans-retinoic acid (tRA), an active metabolite of vitamin A, exacerbated pre-existing autoimmunity in lupus; however, its effects before the development of autoimmunity are unknown. Here, using a pristane-induced model, we show that tRA exerts differential effects when given at the initiation vs. continuation phase of lupus. Unlike tRA treatment during active disease, pre-pristane treatment with tRA aggravated glomerulonephritis through increasing renal expression of pro-fibrotic protein laminin β1, activating bone marrow conventional dendritic cells (cDCs), and upregulating the interaction of ICAM-1 and LFA-1 in the spleen indicating an active process of leukocyte activation and trafficking. Transcriptomic analysis revealed that prior to lupus induction, tRA significantly upregulated the expression of genes associated with cDC activation and migration. Post-pristane tRA treatment, on the other hand, did not significantly alter the severity of glomerulonephritis; rather, it exerted immunosuppressive functions of decreasing circulatory and renal deposition of autoantibodies as well as suppressing the renal expression of proinflammatory cytokines and chemokines. Together, these findings suggest that tRA differentially modulate lupus-associated kidney inflammation depending on the time of administration. Interestingly, both pre- and post-pristane treatments with tRA reversed pristane-induced leaky gut and modulated the gut microbiota in a similar fashion, suggesting a gut microbiota-independent mechanism by which tRA affects the initiation vs. continuation phase of lupus.

2020-02-19 | GSE140104 | GEO

Transcriptome Analysis of Tra Catfish (Pangasianodon hypophthalmus) Early Development Provides Novel Insights for the Terrestrial Adaptation

Project description:Channel catfish (Ictalurus punctatus) and tra catfish (Pangasianodon hypophthalmus) both belong to the order Siluriformes. Channel catfish does not possess an air-breathing organ (ABO), and thus cannot breathe in the air, while tra catfish is a facultative air-breather and use the swim bladder as its air-breathing organ, which provides for aerial breathing in low oxygen conditions. Tra and channel catfish serve as a great comparative model for studying the transition of life from water to terrestrial living, as well as for understanding genes that are crucial for development of the swim bladder and the function of air-breathing in tra catfish. We selected seven developmental stages in tra catfish for RNA-Seq analysis based on their transition to a stage that could live at 0 ppm oxygen. More than 587 million sequencing clean reads were generated in tra catfish, and a total of 21, 448 unique genes were detected. A comparative genomic analysis was conducted between channel catfish and tra catfish. Gene expression analysis was performed for these tra catfish specific genes. Hypoxia challenge and microtomy experiments collectively suggested that there are critical timepoints for the development of the air-breathing function and swim bladder development stages in tra catfish. Key genes were identified to be the best candidates of genes related to the air-breathing ability in tra catfish. This study provides a large data resource for functional genomic studies in air-breathing function in tra catfish, and sheds light on the adaption of aquatic organisms to the terrestrial environment.

2021-01-12 | GSE154904 | GEO

Chromatin Immunoprecipitation of TRA-1 in C. elegans and C. briggsae

Project description:The goal of this study is to identify and characterize sites in the C. elegans genome bound by the transcription factor TRA-1. TRA-1 ChIP-seq was performed in the following stages of animals in duplicate: 1) L2 stage of C. elegans wild-type N2 strain; 2) L3 stage of C. elegans wild-type N2 strain; 3) young adult stage of C. elegans glp-4(bn2) mutant; 4) young adult stage of C. elegans spe-11(hc77) mutant; 5) L3 stage of C. briggsae wild-type AF16 strain. As a negative control, TRA-1 ChIP-seq was also performed in C. elegans L3 stage with tra-1(e1834) homozygous and heterozygous mutation. Input DNA was also sequenced in each condition.

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Chromatin Immunoprecipitation of TRA-1 in C. elegans and C. briggsae

Project description:The goal of this study is to identify and characterize sites in the C. elegans genome bound by the transcription factor TRA-1.

2013-11-04 | GSE48917 | GEO

Gene expression profile of TRA-1-60 population in FL cell line

Project description:Objective and goals: To find a clue for the mechanism of drug resistance in TRA-1-60 positive minor cell populations

2020-11-02 | GSE106783 | GEO

Genome-wide analysis of TRA (tissue restricted antigen)-specific co-expression groups in mouse medullary thymic epithelial cells (mTECs)

Project description:Analysis of gene co-expression patterns in TRA-specific medullary thymic epithelial cell (mTEC) subsets. The whole genome gene signatures of purified mTEC subsets respectively positive for the TRAs Gp2, Pdpn, Cea1, Gad1, Ins2, Tspan8 were compared to their corresponding TRA-negative mTEC subset control. Results provide the enriched and depleted gene expressions in the different subsets.

2015-10-28 | GSE69435 | GEO

Disentangaling the gene expression programs controlled by ciliary and cytosolic cAMP signaling

Project description:Primary cilia are tiny membrane protrusions emanating from the surface of almost all mammalian cell types. Recently, a picture has emerged of the primary cilium functioning as a cellular antenna that senses extracellular stimuli via receptors, locally processes the signal using cilia-specific signalling pathways, and transduces this information into a cellular response. Components of the cyclic AMP (cAMP) signalling cascade have been proposed to be part of the ciliary signalling pathways. We aimed to shed light on whether ciliary cAMP signaling controls gene expression, and if yes, which gene expression program is particularly targeted by ciliary cAMP signaling. To this end, we targeted an optogenetic tool to increase cAMP levels (bPAC) to the primary cilium in murine, kidney-derived inner medullary collecting duct (mIMCD-3) cells (mIMCD-3 cilia-bPAC cells). As controls, we used cells were bPAC is targeted to the cytosol (mIMCD-3 cyto-bPAC cells) and wild-type cells (mIMCD-3 WT cells). We increased cAMP levels by light stimulation and next analysed gene expression using bulk RNA-sequencing. As an additional control, we also included WT cells treated with the compound Forskolin, which targets endogeneous adenylyl cyclases and thus, in principle, is believed to increase cAMP levels in both compartments, cilium and cell soma.

2022-05-11 | GSE182339 | GEO

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