Ontology highlight
ABSTRACT:
PROVIDER: PRJNA902417 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR22316600_1.fastq.gz | Fastqsanger.gz | |||
| SRR22316600_2.fastq.gz | Fastqsanger.gz | |||
| SRR22316601_1.fastq.gz | Fastqsanger.gz | |||
| SRR22316601_2.fastq.gz | Fastqsanger.gz | |||
| SRR22316602_1.fastq.gz | Fastqsanger.gz |
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Project description:The aim of this project was to explore the role of gut microbiota in the development of small intestine. The gut microbiota from different groups was used to treat the mice for 1 or 2 weeks. Then the small intestine samples were collected. The RNA was used for the RNA-seq analysis to search the role of gut microbiota in the development of small intestine. Groups: IMA100 mean gut microbiota from Alginate oligosaccharide 100mg/kg treated mice; IMA10 mean gut microbiota from Alginate oligosaccharide 10mg/kg treated mice; IMC mean gut microbiota from control group mice (dosed with water); Sa mean dosed with saline (no gut microbiota). "1" mean dosed for 1 week, "2" means dosed for 2 weeks.
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Project description:Animals host symbiotic microbial communities that shape gut health. However, how the host immune system and microbiota interact to regulate epithelial homeostasis, particularly during early development, remains unclear. Human interleukin-26 (IL-26) is associated with gut inflammation and has intrinsic bactericidal activity in vitro, yet its in vivo functions are largely unknown, primarily due to its absence in rodents. To examine the role of IL-26 in early life, we used zebrafish and found that gut epithelial cells in il26-/- larvae exhibited increased proliferation, faster turnover, elevated and DNA damage response, and altered cell population abundance. This epithelial dysregulation occurred independently of the IL-26 canonical receptor and resulted from dysbiosis in il26-/-. Moreover, IL-26 bactericidal activity was conserved in zebrafish, suggesting a potential role of this property in regulating microbiota composition. We further identified innate lymphoid cells (ILCs) as the primary source of IL-26 at this developmental stage. These findings establish IL-26 as a central player in a regulatory circuit linking the microbiota, ILCs, and intestinal epithelial cells to maintain gut homeostasis during early life.
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