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Dextran sodium sulfate treatment of wild type and Pirc rats alters colonic normal tissue gene expression

ABSTRACT: Dextran sodium sulfate (DSS) causes inflammation in the gut similar to ulcerative colitis in humans. Patients with ulcerative colitis have increased risk of developing colon cancer. We sought to determine which genes are altered in the normal colonic epithelium, and which changes depend on the Pirc mutation.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE54005 | GEO | 2014/01/14

SECONDARY ACCESSION(S): PRJNA235285

REPOSITORIES: GEO

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Dextran sodium sulfate treatment of wild type and Pirc rats alters colonic normal tissue gene expression

Project description:Dextran sodium sulfate (DSS) causes inflammation in the gut similar to ulcerative colitis in humans. Patients with ulcerative colitis have increased risk of developing colon cancer. We sought to determine which genes are altered in the normal colonic epithelium, and which changes depend on the Pirc mutation. 97 day old (ACIxF344)F1 wild type and Pirc male rats either untreated or given 4% DSS in the drinking water from 40-47 and 54-61 days of age, housed in 12 hour light:12 dark, ad lib feeding. Normal colonic tissue was collected from the distal colon at 97 days of age.

2014-01-14 | E-GEOD-54005 | biostudies-arrayexpress

Dextran sodium sulfate treatment of Pirc rats alters colonic and tumor gene expression

2014-01-14 | GSE54035 | GEO

Dextran sodium sulfate treatment of Pirc rats alters colonic and tumor gene expression

Project description:Dextran sodium sulfate (DSS) causes inflammation in the gut similar to ulcerative colitis in humans. Patients with ulcerative colitis have increased risk of developing colon cancer. We sought to determine whether genes altered in the normal colonic epithelium or tumor differed between sporadic and inflammation-associated tumor development. 97 day old (ACIxF344)F1-Pirc male rats either untreated or given 4% DSS in the drinking water from 40-47 and 54-61 days of age, housed in 12 hour light:12 dark, ad lib feeding and drinking conditions. Normal colonic tissue and tumors were harvested from the distal colon at 97 days of age. A two color, reference design experiment hybridized according to Agilent protocols against a reference pool of RNA made up from colon tissue taken from pooled wild type rats which was labeled with Cy5.

2014-01-14 | E-GEOD-54035 | biostudies-arrayexpress

Anatabine ameliorates intestinal inflammation and reduces the production of pro-inflammatory factors in a dextran sulfate sodium mouse model of colitis.

Project description:Objective: In this study, we aimed to evaluate the anti-inflammatory properties of nicotine and anatabine in a dextran sulfate sodium (DSS) mouse model of ulcerative colitis (UC). Methods: C57BL/6 male mice (10 groups with 8 animals each) were orally administered nicotine at a concentration of 5 or 20 mg/kg body weight or anatabine at a concentration of 5 or 20 mg/kg body weight for a total of 21 days. Colitis was induced by oral administration of 3.5% DSS in drinking water ad libitum during days 14–21. Colonic samples were collected for transcriptomic analysis and multi-analyte profiling (MAP). Results: Oral administration of anatabine, but not nicotine, reduced the clinical symptoms of DSS-induced colitis. The result of gene expression analysis suggested that anatabine had a restorative effect on global DSS-induced gene expression profiles, while nicotine only had limited effects. Accordingly, MAP findings revealed that anatabine reduced the colonic abundance of DSS-associated cytokines and increased IL‑10 abundance. Conclusions: Our results support the reduction of inflammatory effects by anatabine in the DSS mouse model of UC.

2020-11-03 | E-MTAB-8543 | biostudies-arrayexpress

Whole ileal tissue from day 6 Dextran Sodium Sulfate (DSS) administered Il17rafl/fl;Atoh1-cre+/- mice

Project description:Total RNA sequencing (RNA-seq) of the terminal ileum of day 6 Dextran Sodium Sulfate (DSS) administered Il17rafl/fl;Atoh1-cre+ mice and littermate cre- mice was performed.

2022-01-25 | GSE189219 | GEO

Multi-Omics Insights into the Mechanism of Liver Injury in Dextran Sulfate Sodium-Induced Colitis

Project description:Liver injury is a common complication of inflammatory bowel disease (IBD). However, the mechanisms of liver injury development are not clear in IBD patients. Gut microbiota is thought to be engaged in IBD pathogenesis. Here, by an integrated analysis of host transcriptome and colonic microbiome, we have attempted to reveal the mechanism of liver injury in colitis mice. In this study, dextran sulfate sodium (DSS) -induced mice colitis model was constructed. Liver and colon transcriptome results showed that immune response and lipid metabolism-related pathways were dramatically altered, while DNA damage repair-related pathways were only significantly down-regulated in the colon. The microbiota of DSS-treated mice underwent strong transitions. Correlation analyses identified genes associated with liver and colon injury, whose expression was associated with the abundance of liver and gut health-related bacteria Collectively, the results indicate that the liver injury in colitis mice may be related to the intestinal dysbiosis and host-microbiota interactions. These findings may provide new insights for identifying potential targets for the treatment of IBD and its induced liver injury.

2021-08-16 | GSE181959 | GEO

RNA-Seq of wild type and somatostatin 3 CrispR/Cas9 zebrafish mutants treated with dextran sodium sulfate (DSS)

Project description:Wild type and somatostatin 3 (Sst3) gene CrispR/Cas9 mutants of the AB zebrafish strain were treated with dextran sodium sulfate (DSS) to determine the role of sst3 in the innate immune response.

2020-07-31 | E-MTAB-9018 | biostudies-arrayexpress

Single nuclei sequencing to understand mechanism of action of the melanocortin 1 receptor agonist Pl8177 in Dextran sodium sulfate (DSS)-induced colitis in rats

Project description:PL8177 is a potent and selective agonist of the melanocortin 1 receptor (MC1R). PL8177 has shown efficacy in reversing intestinal inflammation in a cannulated rat ulcerative colitis model. To facilitate oral delivery, a novel, polymer-encapsulated formulation of PL8177 was developed and tested in dextran sulfate sodium induced rat ulcerative colitis model. Rats treated with 50 µg oral PL8177 demonstrated significantly lower macroscopic colon damage scores and improvement in colon weight, stool consistency, and fecal occult blood vs the vehicle without active drug. We used single nuclei RNA sequencing of colon tissues to characterize the mechanism of action and identify relative cell population and key gene expression changes between treated, healthy and vehicle.

2023-01-24 | GSE223564 | GEO

Expression data from untreated and DSS-treated Adamts12 WT and KO mice

Project description:Adamts12-deficient mice undergo more severe colitis than WT mice after induction with DSS. We used microarrays to determine the gene expression differences between Adamts12-deficient and WT mice during ulcerative colitis induced with DSS (dextran sodium sulfate)

2012-09-01 | GSE40529 | GEO

The reduction of dextran sulfate sodium-induced colitis severity in mice exposed to cigarette smoke is accompanied by specific gene pathway and microbial shifts.

Project description:Background and Aims: The impact of cigarette smoke on inflammatory bowel disease has been established by a large number of epidemiological, clinical, and preclinical studies. Exposure to cigarette smoke is associated with a higher risk of developing Crohn’s disease but is inversely correlated with the development, disease risks, progression, and relapse rate of ulcerative colitis. Few mechanistic studies have investigated the effect of cigarette smoke on intestinal inflammation and microbial composition. Methods: Three groups of mice were exposed to three different concentrations of cigarette smoke for a total of 4 weeks, including 5 days of dextran sulfate sodium treatment to induce colitis and a 7-day recovery period. A comprehensive and integrated comparative analysis of the global colon transcriptome and microbiome, as well as classical endpoints, was performed. Results: Cigarette smoke exposure significantly decreased the severity induced colitis. Colon transcriptome analysis revealed that cigarette smoke downregulated specific pathways in a concentration-dependent manner, affecting both the inflammatory state and composition of the gut microbiome. Metagenomics analysis demonstrated that cigarette smoke can modulate dextran sulfate sodium-induced dysbiosis of specific bacterial genera, contributing to resolve the inflammation or accelerate recovery. Conclusions: Cigarette smoke alters gut microbial composition and reduces inflammatory responses in a concentration-dependent manner. The present study lays the foundation for investigating potential molecular mechanisms responsible for the attenuation of colitis by cigarette smoke.

2020-03-03 | E-MTAB-7988 | biostudies-arrayexpress

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