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ABSTRACT: Canine Bladder Tumor (invasive urothelial carcinoma) RNAseq

PROVIDER: PRJNA559406 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9936780_1.fastq.gz	Fastqsanger.gz
	SRR9936780_2.fastq.gz	Fastqsanger.gz
	SRR9936790_1.fastq.gz	Fastqsanger.gz
	SRR9936790_2.fastq.gz	Fastqsanger.gz
	SRR9936781_1.fastq.gz	Fastqsanger.gz

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Gene expression data from transgenic and knockout mice

Project description:Activation of oncogenic ras pathway accounts for up to 90% low-grade superficial urothelial carcinomas of bladder, and p53 deficiency is very common in high-grade muscle invasive carcinomas. These two pathways in bladder urothelial tumorigenesis used to be considered divergent and their potential collaboration has not been illustrated. We did laser capture micro-dissection (LCM) to separate the tumor cells from the whole bladder tissues from H-ras transgenic and p53 knockout mice, as well as normal urothelial cells as control. Microarray was then performed to identify distinct classes of up-regulated genes during tumorigenesis and progression. In order to get the gene expression profiles of carcinoma in situ (CIS), muscle invasive tumors and normal cells, we used LCM to purify the cells from mixture of different types of cells, and then extracted RNA for microarray. There are three groups applied in microarray, which are normal cells as control, CIS (tumor genesis) and invasive tumors (tumor progression).

2015-01-08 | E-GEOD-64756 | biostudies-arrayexpress

Frequent truncating mutations of STAG2 in bladder cancer

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Project description:In bladder, loss of mammalian Sonic Hedgehog (Shh) accompanies progression to invasive urothelial carcinoma, but the molecular mechanisms underlying this cancer-initiating event are poorly defined. Here, we show that loss of Shh results from hypermethylation of the CpG shore of the Shh gene, and that inhibition of DNA methylation increases Shh expression to halt the initiation of murine urothelial carcinoma at the early stage of progression. In full-fledged tumors, pharmacologic augmentation of Hedgehog (Hh) pathway activity impedes tumor growth, and this cancer-restraining effect of Hh signaling is mediated by the stromal response to Shh signals, which stimulates subtype conversion of basal to luminal-like urothelial carcinoma. Our findings thus provide a basis to develop subtype-specific strategies for the management of human bladder cancer.

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proteomic landscape of urothelial tumor

Project description:Inverted papilloma (IP) of the urinary bladder is a relatively rare neoplasm that accounts for < 1% of bladder tumor. Although generally accepted as a benign lesion, occasional reports of IP admixed with urothelial carcinoma (UC) or IP patients with synchronous or metachronous UC have raised a concern in the biologic potential of IP.

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Dual role of GRHL3 in bladder carcinogenesis is associated with histological subtypes

Project description:Grainyhead-like transcription factor 3 (GRHL3) is known to affect cancer development depending on subtypes in various entities. Here, we analyzed the subtype-specific role of GRHL3 in bladder carcinogenesis comparing common urothelial carcinoma (UC) with squamous bladder cancers (sq-BLCA). We examined GRHL3 mRNA and protein expression in cohorts of patient samples, its prognostic role as well as its functional impact on tumorigeneses in different molecular and histopathological subtypes of bladder cancer. We showed for GRHL3 a reverse expression in squamous and urothelial bladder cancer subtypes. Stably GRHL3 overexpressing EJ28 and SCaBER in vitro models revealed a tumor suppressive function in squamous and a oncogenic role in the urothelial cancer cells affecting cell migratory and invasive capacities. Transcriptomic profiling demonstrated highly subtype specific GRHL3 regulated expression networks coined by enrichment of genes involved in integrin mediated pathways. In SCaBER loss of RhoA GTPase activity was demonstrated associated with co-regulation of EIF4E3, a potential tumor suppressor gene. Thus, our data provide for the first time a detailed insight into the role of the transcription factor GRHL3 in different histopathological subtypes of bladder cancer.

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Integrated genomic and gene expression profiling identifies two major gene/genomic circuits operating in urothelial carcinoma (gene expression)

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Gene expression data from transgenic and knockout mice

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Transcriptome analysis for KDM6A mutated urothelial bladder carcinoma and EZH2 inhibitor treated KDM6A mutated urothelial bladder carcinoma

Project description:Purpose: The goals of this study are to compare 1. The transcription profile in KDM6A wildtype and KDM6A mutated urothelial bladder carcinoma. 2. The transcriptional changes in KDM6A mutated urothelial bladder carcinoma upon EZH2 inhibitor treatment.

2017-03-01 | GSE92723 | GEO

The investigational Aurora kinase A inhibitor MLN8237 induces defects in cell viability and cell cycle progression in mouse bladder cancer cells in vitro and in vivo

Project description:PURPOSE: Despite over 70,000 new cases of bladder cancer in the United States annually, patients with advanced disease have a poor prognosis due to limited treatment modalities. We evaluate the role of Aurora A, identified as an upregulated candidate molecule in bladder cancer, in regulating bladder tumor growth. EXPERIMENTAL DESIGN: Gene expression in human bladder cancer samples was evaluated using RNA microarray and reverse-transcriptase PCR. The specific Aurora kinase A inhibitor MLN8237 (Millennium) was used to determine effects on bladder cancer cell growth using in vitro and in vivo models using malignant T24 and UM-UC-3 and papilloma-derived RT4 bladder cells. RESULTS: Urothelial carcinoma upregulates a set of 13 mitotic spindle associated transcripts, as compared to normal urothelium, including MAD2L1 (7.6-fold), BUB1B (8.8-fold), Aurora kinases A (5.6-fold) and Aurora kinase B (6.2-fold). Application of MLN8237 (10nM-1µM) to the human bladder tumor cell lines T24 and UM-UC-3 induced dose-dependent G2 cell cycle arrest, aneuploidy, mitotic spindle abnormalities, and apoptosis. MLN8237 arrested tumor growth when administered orally over 4 weeks in a mouse bladder cancer xenograft model (p<0.05). Finally, in vitro combination of MLN8237 with either paclitaxel or gemcitabine produced schedule-dependent synergistic antiproliferative effects in T24 cells when administered sequentially. CONCLUSIONS: Mitotic spindle checkpoint dysfunction is a common characteristic of human urothelial carcinoma, and can be exploited with pharmacologic Aurora A inhibition. Future studies that explore the mechanisms of spindle checkpoint failure in bladder cancer and evaluate the therapeutic role of Aurora kinases for bladder cancer patients would be of value. Tissue samples with urothelial cell carcinoma from bladder as well as normal references were collected and the gene expression profiles were compared. No technical replicates.

2013-05-01 | E-GEOD-42089 | biostudies-arrayexpress

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