Differential single-cell gene expression in the anterior cingulate cortex of mice induced by a cystitis-driven anxiety model
10.16557/j.cnki.1000-7547.2024.04.005
- VernacularTitle:膀胱炎致小鼠焦虑模型诱导前扣带回皮质单细胞基因表达差异
- Author:
Guo CHENG
1
;
Yongsheng ZHOU
;
Dongni LENG
;
Bo SONG
Author Information
1. 东部战区空军医院心胸泌尿外科,南京 210002
- Keywords:
cystitis;
anxiety;
anterior cingulate cortex(ACC);
single-nucleus RNA-sequencing;
mouse
- From:
Chinese Journal of Neuroanatomy
2024;40(4):435-442
- CountryChina
- Language:Chinese
-
Abstract:
Objective:This study aims to investigate the anxiety-like behavior induced by cystitis and its neurobio-logical mechanisms in the anterior cingulate cortex(ACC)by constructing a mouse model of cystitis.Methods:A cys-titis model was established using lipopolysaccharide(LPS).Anxiety-like behavior in mice was explored through the open field test,and single-nucleus RNA sequencing was used to analyze changes in gene expression of neurons in the ACC.Results:HE staining results indicated significant inflammatory responses in the bladders of LPS-treated mice,including extensive infiltration of inflammatory cells,tissue edema,and bladder epithelial shedding.The open field test showed that the time and distance of mice moving in the central area of the open field were significantly reduced,indica-ting obvious anxiety-like behavior.Quality control of single-nucleus sequencing data suggested good data quality.Di-mensionality reduction clustering of the top 2000 highly variable genes revealed seven different cell subpopulations in the ACC.Five major cell types were identified in the ACC,and neurons were further clustered into five different subpopula-tions,identifying two main cell types.Differential gene analysis indicated significant changes in gene expression in neu-rons,with functional enrichment in pathways related to synaptic dysfunction.Conclusion:Cystitis can induce changes in gene expression in specific cell subpopulations in the ACC,suggesting that neurons may play an important role in the anxiety-like behavior induced by cystitis.This provides a new perspective for understanding the relationship between cystitis and anxiety behavior and offers important experimental evidence for future exploration of the brain regions and molecular mechanisms underlying cystitis-induced anxiety behavior.
