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Analysis of 1,25-dihydroxyvitamin D3 genomic action reveals calcium regulating and calcium independent effects in mouse intestine and human enteroids

ABSTRACT: Analysis of 1,25-dihydroxyvitamin D3 genomic action reveals calcium regulating and calcium independent effects in mouse intestine and human enteroids

PROVIDER: PRJNA670486 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12871500_1.fastq.gz	Fastqsanger.gz
	SRR12871500_2.fastq.gz	Fastqsanger.gz
	SRR12871501_1.fastq.gz	Fastqsanger.gz
	SRR12871501_2.fastq.gz	Fastqsanger.gz
	SRR12871502_1.fastq.gz	Fastqsanger.gz

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Analysis of 1,25-dihydroxyvitamin D3 genomic action reveals calcium regulating and calcium independent effects in mouse intestine and human enteroids

Project description:The objective of this study was to determine how the differentiated and undifferentiated compartments of the human duodenum and colon epithelium respond to 1,25-dihydroxyvitamin D3 via human enteroids

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Comparative gene expression profile of 1,25-dihydroxyvitamin D3-treated human monocyte-derived dendritic cells

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1,25-dihydroxyvitamin D3 triggers an anti-inflammatory response in brain pericyte

Project description:Background: Epidemiology and experimental studies suggest 1,25-dihydroxyvitamin D3 plays a neuroprotective role in neurodegenerative diseases including Alzheimer's disease. Most of the experimental data on the genes regulated by this hormone in brain cells have been obtained with neuron and glial cells. Emerging evidence demonstrates pericyte plays a critical role in brain function that encompasses its classical function in the control and maintenance of the blood brain barrier. However, the gene response of brain pericyte to 1,25D remains to be investigated. Methods: The transcriptomic response of human brain pericytes to 1,25-dihydroxyvitamin D3 was analyzed. Results were confirmed by RT-qPCR for the genes of interest. Results: We demonstrate that human brain pericyte in culture responds to 1,25-dihydroxyvitamin D3 by regulating genes involved in the control of neuro-inflammation. We also showed that pericytes respond to the pro-inflammatory cytokines TNF-alpha and Interferon gamma by inducing the expression of the gene involved in the synthesis of 1,25-dihydroxyvitamin D3 named CYP27B1. Conclusion: Taken together these results suggest that neuro-inflammation could trigger the synthesis of 1,25-dihydroxyvitamin D3 by brain pericytes, which will in turn respond to the hormone by a global anti-inflammatory response.

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Expression profiles from mouse prostate progenitor/stem cells treated with ethanol or 100nM 1,25 dihydroxyvitamin D3

Project description:A major goal in prostate stem cell biology is to identify genes, pathways, or networks that control self-renewal and multilineage differentiation. We hypothesize that 1,25 dihydroxyvitamin D3 can induce differentiation of prostatic progenitor/stem cells, thus serving as an in vitro model with which to study the molecular mechanisms of stem cell differentiation by 1,25 dihydroxyvitamin D3. 1,25 dihydroxyvitamin D3 elicits its effects primarily through transcriptional regulation of genes, so microarray studies were used to gain insight into the cellular response to 1,25 dihydroxyvitamin D3. We used microarrays to detail the global gene expression changes that occur upon 1,25 dihydroxyvitamin D3 treatment of prostatic progenitor/stem cells.

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1,25-dihydroxyvitamin D3-induced genes in mouse mixed neuron-glial cell cultures

Project description:Transcriptomic response of mouse mixed neuron-glial cell cultures to 1,25-dihydroxyvitamin D3 6 samples are analysed with three biological replicates in two conditions, control versus 1,25-dihydroxyvitamin D3 (1,25(OH)2D3)

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1,25-dihydroxyvitamin D3-induced genes in mouse mixed neuron-glial cell cultures

Project description:Transcriptomic response of mouse mixed neuron-glial cell cultures to 1,25-dihydroxyvitamin D3

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1,25-Dihydroxyvitamin D3 Controls a Cohort of Vitamin D Receptor Target Genes in the Proximal Intestine That Is Enriched for Calcium Regulating Components (RNA-seq)

Project description:1,25-Dihydroxyvitamin D3 (1,25(OH)2D3) plays an integral role in calcium homeostasis in higher organisms through its actions in the intestine, kidney and skeleton. Interestingly, while several intestinal genes are known to play a contributory role in calcium homeostasis, the entire caste of key components remains to be identified. To examine this issue, Cyp27b1 null mice on either a normal or a high calcium/phosphate-containing rescue diet were treated with either vehicle or 1,25(OH)2D3 and evaluated 6h later. RNA samples from duodena were then subjected to RNA-seq analysis and the data analyzed bioinformatically. 1,25(OH)2D3 altered expression of large collections of genes raised under either dietary condition. 45 genes were found common to both 1,25(OH)2D3-treated groups, and were comprised of genes previously linked to intestinal calcium uptake including S100g, Trpv6, Atp2b1 and Cldn2 as well as others. An additional distinct network of 56 genes was regulated exclusively by diet. This study revealed a global network of genes in the intestine that both represent direct targets of vitamin D action in mice and are involved in calcium absorption.

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Project description:We have carried out global gene expression analysis to clarify the interrelationship between 1,25-dihydroxyvitamin D3 and differentiation-driven gene expression patterns in developing human monocyte-derived dendritic cells. Monocytes were treated with 10 nM 1,25-dihydroxyvitamin D3 or vehicle 14 hours after plating for 12 hours or 5 days. Monocytes, differentiating dendritic cells (+/-1,25-dihydroxyvitamin D3 for 12 hours) and immature dendritic cells (+/-1,25-dihydroxyvitamin D3 for 5 days) were harvested. This design allows one to identify genes regulated by differentiation and/or 1,25-dihydroxyvitamin D3 in human monocyte-derived dendritic cells. Experiment Overall Design: Human monocytes were obtained from buffy coats from healthy donors by Ficoll gradient centrifugation followed by immunomagnetic cell separation with anti-CD14-conjugated microbeads. Monocytes were cultured in RPMI-1640 supplemented with 10% FBS, 800 U/ml GM-CSF and 500 U/ml IL-4. Monocytes were treated with 10 nM 1,25-dihydroxyvitamin D3 or vehicle 14 hours after plating for 12 hours or 5 days. Monocytes, differentiating dendritic cells (+/-1,25-dihydroxyvitamin D3 for 12 hours) and immature dendritic cells (+/-1,25-dihydroxyvitamin D3 for 5 days) were harvested. Experiments were performed in biological triplicates representing samples from different donors. 15 samples were processed and hybridized to Human Genome U133 Plus 2.0 Arrays.

2009-02-21 | E-GEOD-13762 | biostudies-arrayexpress

1,25-Dihydroxyvitamin D3 Controls a Cohort of Vitamin D Receptor Target Genes in the Proximal Intestine That Is Enriched for Calcium Regulating Components (ChIP-seq)

Project description:1,25-Dihydroxyvitamin D3 (1,25(OH)2D3) plays an integral role in calcium homeostasis in higher organisms through its actions in the intestine, kidney and skeleton. Interestingly, while several intestinal genes are known to play a contributory role in calcium homeostasis, the entire caste of key components remains to be identified. To examine the vitamin D receptor (VDR) cistrome in this issue, we conducted a ChIP-seq analysis of binding sites for the VDR across the proximal intestine in vitamin D-sufficient normal mice treated with vehicle or 1,25(OH)2D3. The residual VDR cistrome was comprised of 4617 sites which was increased almost 4-fold following hormone treatment. Interestingly, the majority of the genes regulated by 1,25(OH)2D3 in each diet group as well as those found in common in both groups contained frequent VDR sites that likely regulated their expression. This study revealed a global VDR cistrome regulating a network of genes in the intestine that both represent direct targets of vitamin D action in mice and are involved in calcium absorption.

2015-06-03 | GSE69179 | GEO

1,25-Dihydroxyvitamin D3 Controls a Cohort of Vitamin D Receptor Target Genes in the Proximal Intestine That Is Enriched for Calcium Regulating Components (ChIP-seq)

Project description:1,25-Dihydroxyvitamin D3 (1,25(OH)2D3) plays an integral role in calcium homeostasis in higher organisms through its actions in the intestine, kidney and skeleton. Interestingly, while several intestinal genes are known to play a contributory role in calcium homeostasis, the entire caste of key components remains to be identified. To examine the vitamin D receptor (VDR) cistrome in this issue, we conducted a ChIP-seq analysis of binding sites for the VDR across the proximal intestine in vitamin D-sufficient normal mice treated with vehicle or 1,25(OH)2D3. The residual VDR cistrome was comprised of 4617 sites which was increased almost 4-fold following hormone treatment. Interestingly, the majority of the genes regulated by 1,25(OH)2D3 in each diet group as well as those found in common in both groups contained frequent VDR sites that likely regulated their expression. This study revealed a global VDR cistrome regulating a network of genes in the intestine that both represent direct targets of vitamin D action in mice and are involved in calcium absorption. Wildtype mice were fed a standard rodent chow diet (Harlan Teklad, #5008). At 8 weeks of age, 3 mice were treated with 1,25(OH)2D3 (10 ng/g bw) or vehicle control and the proximal half of the small intestine (duodenum and jejunum) was collected 1 h later.

2015-06-03 | E-GEOD-69179 | biostudies-arrayexpress

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