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Mouse intestinal epithelial cells in the deficiency of Foxo1

ABSTRACT: Mouse intestinal epithelial cells in the deficiency of Foxo1

PROVIDER: PRJNA739893 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR14877337.fastq.gz	Fastqsanger.gz
	SRR14877338.fastq.gz	Fastqsanger.gz
	SRR14877339.fastq.gz	Fastqsanger.gz
	SRR14877340.fastq.gz	Fastqsanger.gz
	SRR14877341.fastq.gz	Fastqsanger.gz

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Mouse intestinal epithelial cells in the deficiency of Foxo1

Project description:Mucus produced by goblet cells in the gastrointestinal (GI) tract forms a biological barrier that protects the intestine from invasion by commensals and pathogens. However, the host-derived regulatory network that controls mucus secretion and thereby changing gut microbiota has not been well studied. We found Forkhead box protein O1 (Foxo1) regulates mucus secretion by goblet cells and determines intestinal homeostasis. Loss of Foxo1 in intestinal epithelial cells (IECs) results in a defect in goblet cell autophagy and mucus secretion, leading to impaired gut microenvironment and dysbiosis.

2021-06-23 | GSE178650 | GEO

Intestinal epithelial cell NCoR deficiency ameliorates obesity and metabolic syndrome

Project description:Obesity has emerged as a common disease worldwide. Risks of developing other metabolic diseases, such as Type 2 diabetes are also higher in obese population. However, current treatment options are limited. Here we discovered a new approach for mitigating obesity and metabolic disorders by targeting intestinal nuclear receptor corepressor (NCoR). In mice with diet-induced obesity, NCoR deficiency in intestinal epithelial cells (IECs) improved obesity, insulin resistance, and glucose intolerance, corrected atherogenic dyslipidemia, and reduced hepatic steatosis. These effects were mediated through regulation of energy expenditure, energy harvest, and gut hormone secretion. Mechanistically, NCoR deficiency in IECs stimulated peroxisome proliferator-activated receptor α (PPARα) signaling pathway-mediated succinate production and thermogenesis. Intestinal cholesterol excretion was induced by derepression of intestinal liver X receptor (LXR), and triglyceride and fatty acid absorption in the upper intestine was reduced by disrupted bile acid synthesis and altered bile acid composition. In the distal intestine, increased fatty acid uptake stimulated glucagon-like peptide-1 (GLP-1) secretion and improved glycemic control.

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Intestinal epithelial cell NCoR deficiency ameliorates obesity and metabolic syndrome

Project description:Intestinal epithelial cell NCoR deficiency ameliorates obesity and metabolic syndrome

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Mouse Intestinal HMGCR complex

Project description:Mice lacking 3-hydroxy-3-methylglutaryl-coenzyme A reductase (Hmgcr) in intestinal villus and crypt epithelial cells were generated using a Villin-Cre transgene. Label free proteome profiling was measure for Wild type and KO mouse.

2021-06-08 | MSV000087589 | MassIVE

Effect of Foxo1 deficiency in naive CD4 T cell activation in vitro

Project description:Foxo1 deficiency promotes T-cell exhaustion.

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Project description:Mouse intestinal epithelial cells in the deficiency of Foxo1

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Role of RANKL in mouse intestinal epithelial cells

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TDAG51 is a novel coactivator of FoxO1

Project description:Tight regulation of Toll-like receptor (TLR)-mediated inflammatory responses is important in innate immunity. Here, we show that T cell death-associated gene 51 (TDAG51/PHLDA1) is a novel coactivator of the transcription factor FoxO1, regulating inflammatory mediator production in the lipopolysaccharide (LPS)-induced inflammatory response. TDAG51 induction by LPS stimulation was mediated by the TLR2/4 signaling pathway in bone marrow-derived macrophages (BMMs). LPS-induced inflammatory mediator production was significantly decreased in TDAG51-deficient BMMs. In TDAG51-deficient mice, LPS- or pathogenic Escherichia coli infection-induced lethal shock was reduced by decreasing serum proinflammatory cytokine levels. The recruitment of 14-3-3 to FoxO1 was competitively inhibited by the TDAG51-FoxO1 interaction, leading to blockade of FoxO1 cytoplasmic translocation and thereby strengthening FoxO1 nuclear accumulation. TDAG51/FoxO1 double-deficient BMMs showed significantly reduced inflammatory mediator production compared with TDAG51- or FoxO1-deficient BMMs. TDAG51/FoxO1 double deficiency protected mice against LPS- or pathogenic E. coli infection-induced lethal shock by weakening the systemic inflammatory response. Thus, these results indicate that TDAG51 acts as a coactivator of the transcription factor FoxO1, leading to strengthened FoxO1 activity in the LPS-induced inflammatory response.

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RNA-seq data of intestinal epithelial cells

Project description:We report that adhesion of microbes to intestinal epithelial cells is a critical cue for Th17 induction. SFB colonized in the intestine of mice can adhere to mouse small intestinal epithelial cells and induce intestinal Th17 cells. However, SFB colonized in rats cannot adhere to mouse intestinal epithelial cells and induce Th17 cells. Likewise, Citrobacter rodentium (WT) can adhere to mouse colonic epithelial cells and induce Th17 cells, but non-adherent mutant of C. rodentium (Δeae) cannot induce Th17 cells. To examine the influence of adherent bacteria on intestinal epithelial cells, we performed RNA seq. Germ free mice were orally inoculated with M-SFB or R-SFB and total RNA was isolated from small intestinal epithelial cells 1 week after inoculation. Alternatively, germ free mice were orally inoculated with C. rodentium WT or eae mutant and total RNA was isolated from colonic epithelial cells 5 days after inoculation. The gene expression of small intestinal epithelial cells isolated from small intestine of germ free mice (2 mice), mice monocolonized with M-SFB (2 mice) or R-SFB (3 mice), and colon of germ free mice (3 mice), mice monocolonized C. rodentium WT (3 mice) or eae mutant (3 mice).

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