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MicroRNA expression profiling among WTX low human gastric cancer tissues and matched adjacent WTX high normal gastric mucosa

ABSTRACT: Comparing to matched normal mucosa, WTX was lost in most of human gastric cancers (Zhang et al., 2016). We analyzed the microRNA expression profiling among WTX low human colorectal cancer tissues and matched adjacent WTX high normal colorectal mucosa. The aimed to identify the unique signature of miRNAs which related to WTX loss in human colorectal cancers.

ORGANISM(S): Macacine gammaherpesvirus 4 Mus musculus Rattus norvegicus Human gammaherpesvirus 8 Betapolyomavirus macacae Homo sapiens

PROVIDER: GSE94882 | GEO | 2017/02/15

SECONDARY ACCESSION(S): PRJNA374714

REPOSITORIES: GEO

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microRNA expression profiling among WTX low human colorectal cancer tissues and matched adjacent WTX high normal colorectal mucosa

Project description:Comparing to matched normal mucosa, WTX was lost in most of human colorectal cancers (Zhang et al., 2016). We analyzed the microRNA expression profiling among WTX low human colorectal cancer tissues and matched adjacent WTX high normal colorectal mucosa. The aimed to identify the unique signature of miRNAs which related to WTX loss in human colorectal cancers.

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WTX overexpression effect on gastric cell line

Project description:We used microarrays to detail the global gene expression in AGS gastric cancer cells overexpressing WTX, a tumor suppressor frequently inactivated in Wilms tumor. Results provide insight into roles for WTX in gastric cancer cells.

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Homo sapiens

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WTX overexpression effect on gastric cell line

Project description:WTX overexpression effect on gastric cell line

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Gene expression profiling after induction of WTX in HEK293 cells

Project description:WTX encodes a tumor suppressor, frequently inactivated in Wilms tumor, with both plasma membrane and nuclear localization. WTX has been implicated in beta-catenin turnover, but its effect on nuclear proteins is unknown. We report an interaction between WTX and p53, derived from the unexpected observation of WTX, p53 and E1B 55K colocalization within the characteristic cytoplasmic body of adenovirus-transformed kidney cells. In other cells without adenovirus expression, the C-terminal domain of WTX binds to the DNA binding domain of p53, enhances its binding to CBP, and increases CBP/p300-mediated acetylation of p53 at Lys 382. WTX knockdown accelerates CBP/p300 protein turnover and attenuates this modification of p53. In p53-reconstitution experiments, cell cycle arrest, apoptosis, and p53-target gene expression are suppressed by depletion of WTX. Together, these results suggest that WTX modulates p53 function, in part through regulation of its activator CBP/p300.

2012-01-01 | GSE34715 | GEO

Gene expression profiling after induction of WTX in HEK293 cells

2012-01-01 | E-GEOD-34715 | biostudies-arrayexpress

WTX interacts with the transcriptional regulator TRIM28 to mediate cellular differentiation

2015-04-16 | GSE60418 | GEO

WTX interacts with the transcriptional regulator TRIM28 to mediate cellular differentiation

Project description:WTX encodes a tumor suppressor implicated in Wilms tumor and in mesenchymal differentiation, with distinct functions in the cytoplasm, at the plasma membrane and in the nucleus. Here we report that the transcriptional corepressor TRIM28 is the major binding partner for nuclear WTX. The WTX-TRIM28 interaction supports chromatin binding by TRIM28, enhancing transcriptional silencing of some TRIM28 target sequences. In mouse ES cells, where TRIM28-mediated silencing of repetitive sequences is best characterized, Wtx knockdown similarly derepresses endogenous retroviruses and LINE elements. We performed digital gene expression (DGE) profiling using Helicos RNA sequencing. Helicos sequencing does not involve an amplification step, hence it has less bias, especially in sequencing of repetitive elements. We sequenced RNA extracted from mouse ESCs harboring GFP, Wtx or Trim28 hairpins. The resulting sequence reads were aligned with the RefSeq database as well as Repbase, which is a database for the repetitive sequences.

2015-04-16 | E-GEOD-60418 | biostudies-arrayexpress

Homo sapiens

Project description:microRNA expression profiling among WTX low human gastric cancer tissues and matched adjacent WTX high normal gastric mucosa

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Transcription profiling of human gastric tumors and adjacent non-cancerous mucosa compared to gastric mucosa in healthy individuals

Project description:Gastric Carcinoma is a very serious condition. Tumors are often not detected until late, and 5-year survival rates are 20%. Early diagnosis or prediction of gastric cancer is of outmost importance. Molecularly, those tumours are not well characterized. <br><br> Aim: by use of cDNA microarray to do a three-way comparison of gene expression patterns between tumour (T), flat (non-cancerous) mucosa (N) from stomachs with carcinoma, and normal mucosa in matched controls (K). Our first goal was to look at genes commonly differentially expressed between TvsN and TvsK (both criteria fulfilled) and NvsK. <br><br> Subjects and methods: We analyzed gene expression in tumor and flat mucosa biopsies from seven patients with gastric carcinoma and in age/sex matched samples from healthy individuals. Total RNA was extracted and samples (2 ug total RNA) were labeled for cDNA microarray analysis using Genisphere's 3DNA dendrimer kit. The gene expression patterns for 12759 genes were analyzed.

2008-12-12 | E-MEXP-1164 | biostudies-arrayexpress

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