MCJ-KO Cohousing experiment prior to DSS-induced colitis
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB43553 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| ERR5433380_1.fastq.gz | Fastqsanger.gz | |||
| ERR5433380_2.fastq.gz | Fastqsanger.gz | |||
| ERR5433390_1.fastq.gz | Fastqsanger.gz | |||
| ERR5433390_2.fastq.gz | Fastqsanger.gz | |||
| ERR5433400_1.fastq.gz | Fastqsanger.gz |
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Project description:DSS-induced Colitis Rats Raw sequence reads
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Project description:BackgroundUlcerative colitis (UC) represents a clinically challenging condition characterized by persistent damage to the colonic epithelial mucosa as the principal pathological feature. Polyvinyl alcohol (PVA) solution, primarily composed of glue, is a biodegradable polymer material that has found utility in the medical field. This research endeavors to investigate the therapeutic potential of PVA water solution in ameliorating UC in mice.MethodsUC was induced in 48 C57BL/6 mice by administering 2.5% DSS in their diet for 6 days. Mice were treated with different concentrations of PVA (0.1 mg/ml PVA, 0.3 mg/ml PVA, 1 mg/ml PVA, 3 mg/ml PVA, 10 mg/ml PVA) enemas (n = 6). Disease Activity Index (DAI) and histologic score were evaluated for inflammation degree. Furthermore, mouse colon organoids were cultured, which were used to assess the effects of PVA on expansion in vitro.ResultsPVA aqueous solutions (1 mg/ml and 3 mg/ml) were able to alleviate the DAI in mice. By DAY 6, there was a significant 3/5-fold decrease in DAI within the 1 mg/ml PVA group (p = 0.02). Histopathology scores demonstrated improvements, while the levels of inflammatory factors in the intestinal mucosal tissue were reduced. Additionally, it was confirmed that PVA could promote the expansion of colonic organoids in vitro.ConclusionsIn summary, our investigation has yielded findings indicating that PVA holds the potential to ameliorate symptoms associated with colitis in murine subjects afflicted by DSS-induced colitis, primarily through its facilitation of intestinal stem cell expansion. This study might provide a new candidate for the clinical treatment of ulcerative colitis.
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Project description:NAPRT-mediated deamidated biosynthesis of nicotinamide adenine dinucleotide (NAD), an essential electron carrier for hundreds of biochemical reactions in all living cells, mediates the diet-microbe-host NAD metabolic interaction in mice. To study the function of this metabolic pathway in vivo, we recently generated a mutant mouse strain (NAPRT KO) in which a 21-nt fragment that encodes 7 amino acids in the catalytic domain of NAPRT was deleted in all cells using the CRISPR/Cas9-mediated gene editing technology. Our data showed that NAPRT KO mice are hypersensitive to DSS-induced colitis. To better understand this hypersensitivity at the molecular level, we analyzed transcriptomes of colon tissues from DSS-treated WT and NAPRT KO mice.
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