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Array-based CGH analysis of ccRCC derived cell lines

ABSTRACT: arrayCGH profiling of 10 cell lines derived from clear cell Renal Cell Carcinoma The goal of this study was to make a detailed genomic profile of these cell lines, including aCGH, miRNA expression, and mRNA expression profiles. The miRNA and mRNA expressiion profiles are submitted to GEO separately. One paper is in preparation to link the miRNA expression data with the arayCGH data. For mRNA expression data see GEO Series accession number GSE20491.

ORGANISM(S): Homo sapiens

PROVIDER: GSE34979 | GEO | 2012/11/01

SECONDARY ACCESSION(S): PRJNA156305

REPOSITORIES: GEO

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Array-based CGH analysis of ccRCC derived cell lines

Project description:arrayCGH profiling of 10 cell lines derived from clear cell Renal Cell Carcinoma The goal of this study was to make a detailed genomic profile of these cell lines, including aCGH, miRNA expression, and mRNA expression profiles. The miRNA and mRNA expressiion profiles are submitted to GEO separately. One paper is in preparation to link the miRNA expression data with the arayCGH data. For mRNA expression data see GEO Series accession number GSE20491. CGH arrays used to analyse 10 cell lines

2012-11-01 | E-GEOD-34979 | biostudies-arrayexpress

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Project description:Despite numerous studies reporting deregulated microRNA (miRNA) and gene expression patterns in clear cell renal cell carcinoma (ccRCC), no direct comparisons have been made to its presumed normal counterpart; the renal proximal epithelial tubular cells (PTEC). The aim of this study was to determine the miRNA expression profiles of ten clear cell renal cell carcinoma-derived cell lines and short-term cultures of PTEC, and to correlate these with their gene expression, and copy-number profiles. Using microarray-based methods, a significantly altered expression level in ccRCC cell lines was observed for 23 miRNAs and 1630 genes. The set of miRNAs with significantly decreased expression levels include all members of the miR-200 family known to be involved in the epithelial to mesenchymal transition (EMT) process. Expression levels of 13 of the 47 validated target genes for the downregulated miRNAs were increased more than two-fold. Our data reinforce the importance of the EMT process in the development of ccRCC. For mRNA expression data of these cell lines see GEO Series accession number GSE20491.

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Malignant Germ Cell Tumors Display Common microRNA Profiles Resulting in Global Changes in Expression of mRNA Targets

Project description:Comparison of miRNA expression profiles in malignant germ cell tumors compared to non-malignant control group. Use of bioinformatic algorithm Sylamer to interrogate mRNA expression profiles from malignant germ cell tumors for enrichment or depletion of binding sites for differentially expressed miRNAs. Use of Gene Ontology (GO) analysis to demonstrate functional significance of differentially expressed miRNAs in malignant germ cell tumors. mRNA profiling: Analyzed global mRNA expresion profiles from 21 pediatric samples (17 malignant germ cell tumors, 1 benign germ cell tumor and 3 gonadal controls) using Sylamer (van Dongen et al, Nature Methods 2008, PMID 18978784) to study functional significance of differentially expressed miRNAs in malignant germ cell tumors. 16 of these files previously published - Palmer et al, Cancer Research 2008, PMID 18519683; GEO Accession Number GSE10615. Similarly, re-analyzed published global mRNA expresion profiles from 25 adult samples (20 malignant germ cell tumors and 5 testis controls) using Sylamer (van Dongen et al, Nature Methods 2008, PMID 18978784) to study functional significance of differentially expressed miRNAs in malignant germ cell tumors. These files previously published - Korkola at al, Cancer Research 2006, PMID 16424014; GEO Accession Number GSE3218. miRNA profiling: Analyzed global miRNA expression files from 48 samples including 32 pediatric gonadal and extragonadal germ cell tumors, 2 adult testicular seminomas, 8 gonadal and developmental control samples and 6 germ cell tumor cell lines. Re-analyzed published data (TaqMan MicroRNA Assays) from study of miRNA expression in adult gonadal germ cell tumors (Gillis et al, J Pathol 2007, PMID 17893849) and compared with pediatric findings. Re-analyzed data linked below as supplementary file.

2010-03-14 | E-GEOD-18155 | biostudies-arrayexpress

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2015-12-31 | GSE63769 | GEO

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2015-12-31 | GSE63729 | GEO

Genome-wide gene expression profiling of high-grade osteosarcoma cell lines

Project description:We performed genome-wide gene expression data of high-grade osteosarcoma cell lines, as well as on mesenchymal stem cells, and osteoblasts, and performed global test analysis in order to determine the most significantly affected KEGG pathways. Genome-wide gene expression analysis was performed on 19 high-grade osteosarcoma cell lines. Significantly differentially expressed genes were determined between osteosarcoma cells and two different sets of control samples - osteoblasts [n=3, GEO accession number GSE33382] and mesenchymal stem cells [n=12, GEO accession number GSE28974]. Global test was applied to the different analyses, in order to determine the most affected signaling pathways in osteosarcoma cells.

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