Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA938801 | ENA |
REPOSITORIES: ENA
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Project description:Infectious enteritis is often accompanied with immuno-disorder of intestinal immune cells caused by microbials infection. Trained immunity is classically characterized by long-term functional reprogramming of innate immune cells to combat infectious diseases. However, whether the induction of trained immunity plays a role in protecting infectious enteritis remains largely unknown. Here, through establishing an in vivo β-glucan training and E. piscicida infection model in zebrafish, we observe that induction of trained immunity could alleviate bacterial infection-caused enteritis. Moreover, we identify intestinal complement C3 as a crucial target of trained immunity and could be amplified in response to bacterial infection. Furthermore, we reveal that trained immunity could reverse the reduction of intestinal Th17 cells in C3-dependent manner to alleviate infectious enteritis. Taken together, our results uncover the role of complement C3-mediated trained immunity in maintaining Th17 cells and intestine homeostasis, and provide a theoretical strategy for immunotherapies of infectious enteritis.
2025-05-01 | GSE285528 | GEO
Project description:Respiratory and intestinal dysbiosis induced by acuter LPS challenge
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Project description:This study was conducted to evaluate the effects of dietary supplemental magnolol and honokiol in broilers infected with S. pullorum. A total of 360 one-day-old broilers were selected and randomly divided into four groups with six replicates: the negative control group (CTL), S. pullorum-infected group (SP), and the S. pullorum-infected group supplemented with 300 mg/kg honokiol (SPH) or magnolol (SPM). Chicks in the SP, SPH, and SPM groups were orally treated with a 0.5 ml (4×108 CFU/mL) S. pullorum solution at 5 days of age, while chicks in the control (CTL) group received the same amount of sterilized PBS at the same age.At 14 and 21 days of age, one chick from each replicate was randomly selected to be weighed and slaughtered by jugular exsanguination after a 12-h fasting period. The ileum samples were collected to analyze the differential expression genes.
2021-08-18 | GSE164260 | GEO
Project description:Westernization of diet, partly characterised by excess of long-chain fatty acids, provides a risk for developing Crohn’s disease (CD), and perturbs the function of specialized intestinal epithelium termed Paneth cells. The lack of a cellular and molecular framework of lipid sensing in intestinal inflammation poses a constraint to understanding detrimental effects of Western diets. Here, we report how Paneth cell sensing of lipid excess in a Western diet is translated into CD-like intestinal inflammation. Small intestinal transcriptional profiling of CD patients from three independent cohorts identified increased activity of the transcription factor retinoid x receptor alpha (RXRα) specifically in intestinal epithelium. Intestinal epithelial RXRα activity was induced by polyunsaturated fatty acid (PUFA) excess in a Western diet in mice with CD-like enteritis. PUFA-induced RXRα activity in Paneth cells governed chronic transmural enteritis by enabling the expression of the interleukin 8 homologue CXCL1. Blockade of PUFA-induced RXRα activity by 9-cis retinoic acid ameliorated CXCL1 production and enteritis, and patients receiving isotretinoin therapy (a precursor for 9-cis retinoic acid) displayed reduced odds of developing CD. Collectively, we identify Paneth cells as gatekeepers of lipid stress that exploit RXRα to sense and translate PUFA excess into enteritis, which could be targeted to prevent or treat CD.
2025-12-12 | GSE284139 | GEO
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2025-06-13 | GSE297306 | GEO
Project description:We established a bacteria infective intestinal inflammation in turbot (Scophthalmus maximus). And found that β-glucan could significantly alleviate the phenotype of turbot intestinal inflammation. We performed single cell transcriptome analysis to study bacteria infective intestinal inflammation and the effects of β-glucan. Furthermore, we revealed that β-glucan through activates Th17 cells to alleviate intestinal inflammation in turbot.
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