The PRC2-dependent epigenetic remodeling exacerbates inflammation and severity of urinary tract infection
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE228414 | GEO | 2023/03/29
REPOSITORIES: GEO
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Project description:To identify genes from bladder urothelium that are affected after acute bacterial infection
2023-03-29 | GSE228422 | GEO
Project description:Bilateral freezing of the pelvic ganglia in female rats were performed to denervate the urinary bladder. Sham operated rats were used as controls. The rats were sacrificed 10 days after surgery. The urinary bladders (including the urothelium) were frozen and used for RNA extraction.
2018-03-10 | GSE104539 | GEO
Project description:Bilateral freezing of the pelvic ganglia in female rats were performed to denervate the urinary bladder. Sham operated rats were used as controls. The rats were sacrificed 10 days after surgery. The urinary bladders (including the urothelium) were frozen and used for RNA extraction.
2018-03-10 | GSE104538 | GEO
Project description:The presence of carcinoma in situ (CIS) lesions in the urinary bladder is associated with a high risk of disease progression to a muscle invasive stage. In this study, we used microarray expression profiling to examine the gene expression patterns in superficial transitional cell carcinoma (sTCC) with surrounding CIS (13 patients), without surrounding CIS lesions (15 patients), and in muscle invasive carcinomas (mTCC; 13 patients). Hierarchical cluster analysis separated the sTCC samples according to the presence or absence of CIS in the surrounding urothelium. We identified a few gene clusters that contained genes with similar expression levels in transitional cell carcinoma (TCC) with surrounding CIS and invasive TCC. However, no close relationship between TCC with adjacent CIS and invasive TCC was observed using hierarchical cluster analysis. Expression profiling of a series of biopsies from normal urothelium and urothelium with CIS lesions from the same urinary bladder revealed that the gene expression found in sTCC with surrounding CIS is found also in CIS biopsies as well as in histologically normal samples adjacent to the CIS lesions. Furthermore, we also identified similar gene expression changes in mTCC samples. We used a supervised learning approach to build a 16-gene molecular CIS classifier. The classifier was able to classify sTCC samples according to the presence or absence of surrounding CIS with a high accuracy. This study demonstrates that a CIS gene expression signature is present not only in CIS biopsies but also in sTCC, mTCC, and, remarkably, in histologically normal urothelium from bladders with CIS. Identification of this expression signature could provide guidance for the selection of therapy and follow-up regimen in patients with early stage bladder cancer. Experiment Overall Design: See publication
2007-11-28 | E-GEOD-3167 | biostudies-arrayexpress
Project description:Kruppel-like transcription factor 5 (Klf5) is expressed during late embryogenesis in the forming murine bladder urothelium. Targeted disruption of the Klf5flox alleles by the ShhGfpCre transgene resulted in failure of the bladder urothelium to mature accompanied by hydronephrosis, hydroureter, and vesicoureteric reflux in all E18.5 fetuses. The bladder urothelium did not stratify nor did it express terminal differentiation markers characteristic of basal, intermediate, and umbrella cells including keratins 20, 14, and 5, and uroplakins. At E18.5, an ectopic alpha smooth muscle actin positive layer of cells was identified subjacent to the undifferentiated Klf5-deficient urothelium. The effects of Klf5 deficiency were unique to the urothelium since maturation of the epithelium comprising the bladder neck and urethra were unaffected by the lack of KLF5. mRNA microarray analysis of whole E14.5 control and Klf5 deficient bladders identified Ppar? and Grhl3 as putative downstream intermediary transcription factors that regulate urothelial maturation. Transient transfection assays demonstrated that KLF5 regulated expression of the mGrhl3 promoter. These observations show that alterations in maturation of the bladder urothelium alone are sufficient to induce bladder dysfunction leading to prenatal hydronephrosis. Total RNA from E14.5 whole bladders isolated from Klf5D/D and Klf5+/+ShhGfpCre+ embryos (n=3 samples/genotype, each sample a pool of two bladders) was isolated using the Qiagen MicroRNA Kit. The cDNA was then hybridized according to the manufacturer’s protocol to the Affymetrix Mouse Gene 1.0 ST Array
2011-08-01 | E-GEOD-27014 | biostudies-arrayexpress
Project description:Kruppel-like transcription factor 5 (Klf5) is expressed during late embryogenesis in the forming murine bladder urothelium. Targeted disruption of the Klf5flox alleles by the ShhGfpCre transgene resulted in failure of the bladder urothelium to mature accompanied by hydronephrosis, hydroureter, and vesicoureteric reflux in all E18.5 fetuses. The bladder urothelium did not stratify nor did it express terminal differentiation markers characteristic of basal, intermediate, and umbrella cells including keratins 20, 14, and 5, and uroplakins. At E18.5, an ectopic alpha smooth muscle actin positive layer of cells was identified subjacent to the undifferentiated Klf5-deficient urothelium. The effects of Klf5 deficiency were unique to the urothelium since maturation of the epithelium comprising the bladder neck and urethra were unaffected by the lack of KLF5. mRNA microarray analysis of whole E14.5 control and Klf5 deficient bladders identified Ppar-gamma and Grhl3 as putative downstream intermediary transcription factors that regulate urothelial maturation. Transient transfection assays demonstrated that KLF5 regulated expression of the mGrhl3 promoter. These observations show that alterations in maturation of the bladder urothelium alone are sufficient to induce bladder dysfunction leading to prenatal hydronephrosis.
2011-08-02 | GSE27014 | GEO
Project description:In Firmicutes, the nutrient-sensing regulators (p)ppGpp, the effector molecule of the stringent response, and CodY work in tandem to maintain bacterial fitness during infection. Here, we tested (p)ppGpp and codY mutant strains of Enterococcus faecalis in a catheter-associated urinary tract infections (CAUTI) mouse model and used global transcriptional analysis to investigate the (p)ppGpp and CodY relationship. Absence of (p)ppGpp or single inactivation of codY led to lower bacterial loads in catheterized bladders, and diminished biofilm formation on fibrinogen-coated surfaces under in vitro and in vivo conditions. Single inactivation of the bifunctional (p)ppGpp synthetase/hydrolase rel did not affect virulence supporting previous evidence that association of (p)ppGpp with enterococcal virulence is not dependent on activation of the stringent response. Inactivation of codY in the (p)ppGpp0 strain restored E. faecalis virulence in the CAUTI model as well as the ability to form biofilms in vitro. Transcriptome analysis revealed that inactivation of codY restores, for the most part, the dysregulated metabolism of (p)ppGpp0 cells. While a clear linkage between (p)ppGpp and CodY with expression of virulence factors could not be established, targeted transcriptional analysis indicate that a possible association between (p)ppGpp and c-di-AMP signaling pathways in response to the conditions found in the bladder may plays a role in enterococcal CAUTI. Collectively, this study identifies the (p)ppGpp-CodY network as an important contributor to enterococcal virulence in catheterized mouse bladder and supports that basal (p)ppGpp pools promote virulence through maintenance of a balanced metabolism during adverse conditions.
2019-05-25 | GSE131749 | GEO
Project description:We examined mirtron and miR expression in bladder cancer cell line following DNA Methyltransferase inhibition and normal urothelium using human Agilent microRNA microarrays. Bladder cancer cell lines (EJ, RT4 and RT112) were treated with 5-azacytidine ''Aza'' (2uM) for 5-7 days and normal urothelium (NHU) were subjected for microRNA microarray analysis. Analysis were performed in triplicates or more.
2011-02-17 | E-GEOD-22380 | biostudies-arrayexpress
Project description:the same population of EPCs was detected in bladder cancer patients. The EPCs, whose function could be reversed via anti-CD71 treatment, were induced by the circRNA TFRC (circular RNA derived from the transferrin receptor mRNA; cTFRC) in bladder cancer exosomes.
2021-09-27 | GSE171000 | GEO
Project description:The anaerobic actinobacterium Gardnerella was first isolated from the bladder by suprapubic aspiration more than fifty years ago. Since then, Gardnerella has been increasingly recognized as a common and often abundant member of the female urinary microbiome (urobiome). Some studies even suggest that the presence of Gardnerella is associated with urological disorders in women. We recently reported that inoculation of Gardnerella into the bladders of mice results in urothelial exfoliation. Here we performed whole bladder RNA-seq in our mouse model to identify additional host pathways involved in the response to Gardnerella bladder exposure. The transcriptional response to Gardnerella reflected the urothelial turnover that is a consequence of exfoliation, while also illustrating the activation pathways involved in inflammation and immunity. Additional timed exposure experiments in mice provided further evidence of a potentially clinically relevant consequence of bladder exposures to Gardnerella -- increased susceptibility to subsequent UTI caused by uropathogenic Escherichia coli. Together these data provide a broader picture of the bladder response to Gardnerella and lay the groundwork for future studies examining the impact of Gardnerella on bladder health.
2022-05-20 | GSE203195 | GEO