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

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

PROVIDER: PRJNA1007662 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25711657_1.fastq.gz	Fastqsanger.gz
	SRR25711657_2.fastq.gz	Fastqsanger.gz
	SRR25711658_1.fastq.gz	Fastqsanger.gz
	SRR25711658_2.fastq.gz	Fastqsanger.gz
	SRR25711659_1.fastq.gz	Fastqsanger.gz

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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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Proteomic Characterization of Epithelial Ovarian Cancer Delineates Molecular Signatures and Therapeutic Targets in Distinct Histological Subtypes

Project description:Clear cell carcinoma (CCC), endometrioid carcinoma (EC), and serous carcinoma (SC) are the major histological subtypes of epithelial ovarian cancer (EOC), whose differences in carcinogenesis are still unclear. Here, we undertake comprehensive proteomic profiling of 80 CCC, 79 EC, 80 SC, and 30 control samples. Our analysis reveals the prognostic or diagnostic value of dysregulated proteins and phosphorylation sites in important pathways. Moreover, protein co-expression network not only provides comprehensive view of biological features of each histological subtype, but also indicate potential prognostic biomarkers and progression landmarks. Notably, EOC have strong inter-tumor heterogeneity, with significantly different clinical characteristics, proteomic patterns and signaling pathway disorders in CCC, EC, and SC. Finally, we infer MPP7 protein as potential therapeutic target for SC, whose biological functions are confirmed in SC cells. Our proteomic cohort provides valuable resources for understanding molecular mechanisms and developing treatment strategies of distinct histological subtypes.

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miRNA profiling from different histological subtypes of colorectal carcinoma

Project description:miRNA profiling from different histological subtypes of colorectal carcinoma

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Distinct molecular profiles for histological subtypes of epithelial ovarian adenocarcinomas

Project description:Background: It has been shown that based on gene expression profiles, subgroups within epithelial ovarian cancers (EOC) can be identified. We studied a well characterized series of ovarian carcinomas from patients treated at our institute using gene expression profiling to better define clinically significant subgroups. Methods: Gene expression profiling was performed using RNA of 90 primary fresh frozen EOC samples representing all histological subtypes and stages (FIGO I-IV). Patients underwent either primary or interval debulking surgery and if indicated taxane-based chemotherapy. Pathology was reviewed for all cased and complete follow-up, including treatment response and recurrences was available for all patients. Results: Unsupervised and supervised analysis of gene expression data showed distinct subtypes correlating with histology. Mucinous carcinoma was the most distinct subtype based on gene expression profile. No significant differences in gene expression profile between high and low grade serous carcinomas could be observed. No gene expression signatures associated with survival or treatment response could be identified. Conclusion: Histological subtypes of ovarian adenocarcinomas are characterized by distinct gene expression profiles. In order to find signatures correlated to outcome of treatment it is essential that gene expression profiling studies are performed in histological homogeneous groups.

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Project description:Although meningiomas are one of the most frequent primary intracranial tumors, there are only a few studies dealing with gene regulation processes in meningiomas. MiRNAs are key regulators of gene expression and regulation and miRNA profiles offer themselves as biomarkers for cancer development and progression. To investigate the role of miRNAs during meningioma growth and progression, we compared expression of 1205 miRNAs in 55 meningioma samples of different tumor grades and histological subtypes. We were able to classify histological subtypes in WHO grade I meningiomas with up to 97% accuracy (meningothelial versus fibroblastic) and different WHO grades with up to 93% accuracy (WHO I versus WHO III). We found significant downregulation of miRNAs on chromosome 1p36 and within two large miRNA clusters on 14q32 in high grade meningiomas, two regions that are yet associated with meningioma progression. We also identified several miRNAs associated with epithelial to mesenchymal transition differentially expressed in meningothelial meningioma compared to fibroblastic meningioma. Combined, our data show that meningiomas of different WHO grades and histological subtypes show a specific miRNA expression profile. Some individual miRNAs can also serve as potential biomarkers for meningioma progression.

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A serum miRNA classifier diagnoses bone and soft tissue sarcomas across various histological subtypes

Project description:A serum miRNA classifier diagnoses bone and soft tissue sarcomas across various histological subtypes

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EMG1 cooperates with GRHL3 in β-catenin–mediated surface ectoderm differentiation to regulate neural tube closure

Project description:Grainyhead-like transcription factor 3 (GRHL3) directs surface ectoderm differentiation under the control of the canonical Wnt/β-catenin pathway. However, the molecular mechanisms that control nuclear GRHL3 expression through β-catenin are not fully understood. Here, we show that the essential for mitotic growth 1 (EMG1) protein constitutes a protein complex with GRHL3, and that EMG1 is required for correct nuclear localization of GRHL3, and for activation of the canonical Wnt signaling pathway. Conditional knockout mutation of Emg1 in the GRHL3-positive surface ectoderm causes neural tube defects at the level of the spinal cord, i.e. spina bifida. Additionally, the severity of compound mutant phenotypes of the Emg1 and Grhl3 genes indicates that they interact genetically in neurulation and palate development. These lines of evidence demonstrate that EMG1 cooperates with GRHL3 in β-catenin–mediated surface ectoderm differentiation. Since the EMG1 mutation causes Bowen-Conradi syndrome and the GRHL3 mutation causes Van der Woude syndrome 2, both of which are associated with neural tube dysplasia and cleft palate, our study will help to better understand the pathogenic mechanisms of these two human genetic diseases.

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Transcription profiling of human normal, premalignant and various histological subtypes of testicular germ cell tumor (TGCT) tissues, and of two TGCT cell lines treated with retinoic acid

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