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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Expression data from cultured mouse BALB 3T3 cells containing bacterial plasmid gene mucAB

ABSTRACT: The gene mucAB has an error-prone activity in bacteria. We introduced mucAB into mouse 3T3 cells with an expression vector and found drastic increase of spontaneous transformation, accompanied by increase of expression of eight oncogenes, i. e., Gpnmb, Foxml, Maff, Myc, Aurka, Aukb, Fosl1, and Anxa8 and decrease of expression in two oncogenes, i. e., Lrig1 and RhoX in order of the magnitude of change, as compared with those in non-treated 3T3 cells. Transformation of cultured mouse BALB 3T3 cells was used as an indicator of cellular oncogenesis. We examined effects of introduction of foreign bacterial plasmid gene into mouse cells on spontaneous transformation frequency, accompanied by change of expression of known oncogenes. To do this, 3T3 cells with or without mucAB were compared for expression of known genes, using the microarray method.

ORGANISM(S): Mus musculus

SUBMITTER: Kazuhiko Aoyagi

PROVIDER: E-GEOD-42927 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression data from cultured mouse BALB 3T3 cells containing bacterial plasmid gene mucAB

Project description:The gene mucAB has an error-prone activity in bacteria. We introduced mucAB into mouse 3T3 cells with an expression vector and found drastic increase of spontaneous transformation, accompanied by increase of expression of eight oncogenes, i. e., Gpnmb, Foxml, Maff, Myc, Aurka, Aukb, Fosl1, and Anxa8 and decrease of expression in two oncogenes, i. e., Lrig1 and RhoX in order of the magnitude of change, as compared with those in non-treated 3T3 cells.

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Deficiency of multidrug resistance 2 contributes to cell transformation through oxidative stress

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Expression microarray analysis of RHOXF1 and RHOXF2 transfected HEK293 cells

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Comparison of gene expression profiles of MafF-/-: MafG-/-: MafK-/- embryos and MafF-/-: MafG+/+: MafK-/- embyos

Project description:MafF-/-: MafG+/+: MafK-/- mice are viable, while MafF-/-: MafG-/-: MafK-/- mice are embryonic lethal. To get an insight into the cause of the lethality of small Maf triple knockout mice, transcriptome analysis was performed using whole embyos of MafF-/-: MafG-/-: MafK-/- at E10.5 and those of MafF-/-: MafG+/+: MafK-/- at E9.5 or E10.5. Because MafF-/-: MafG-/-: MafK-/- embryos exhibit growth retardation, the gene expression profile of MafF-/-: MafG-/-: MafK-/- embryos at E10.5 was compared with that of MafF-/-: MafG+/+: MafK-/- embyos at E9.5. The gene expression profile of MafF-/-: MafG+/+: MafK-/- embryos at E10.5 was also examined as an alternative control. Total RNA was prepared from pooled three embryos for each sample.

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Expression microarray analysis of RHOXF1 and RHOXF2 transfected HEK293 cells

Project description:The X-linked reproductive homeobox (RHOX) gene cluster encodes transcription factors displaying preferential expression in reproductive tissues. They have important roles in human male fertility based on phenotypic defects of Rhox-mutant mice and the finding that aberrant RHOX promoter methylation is strongly associated with abnormal human sperm parameters. The aim of this study was to analyze the molecular mechanism of RHOX action in humans. Using genome-wide analysis, we investigated the identity of genes regulated by the known human RHOX transcription factors: RHOXF1 and RHOXF2/2B. HEK293 cells were transiently transfected with either RHOX expression (RHOXF1; RHOXF2) or an empty control vector. Afterwards, differently expressed genes were identified by microarray analysis after 24h and 48h of transfection. Thereby we could identify genes that are differently regulated in response to RHOX overexpression. Total RNA was isolated from RHOX (RHOXF1; RHOXF2) and control transfected HEK293 cells after 24h and 48h of transfection. Affymetrix GeneChip Human Exon 1.0 ST arrays were used to evaluate changes in mRNA expression in RHOX transfected samples compared to control transfected samples (analyzed in biological triplicates). Data were processed and analyzed using Affymetrix Gene Expression Console and Affymetrix transcriptome analysis console.

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Comparison of gene expression profiles of MafF-/-: MafG-/-: MafK-/- embryos and MafF-/-: MafG+/+: MafK-/- embyos

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Expression data from mouse ES cells after control RNAi (scramble siRNAs) or RNAi specific for Kdm6a treatment.

Project description:To address the functional role of KDM6A in the regulation of Rhox genes, male and female mouse ES cells were transfected with a mixture of three small interfering RNA duplexes, each of which targets a different region of Kdm6a mRNA. We found that Kdm6a knockdown in mouse ES cells caused a decrease in expression of a subset of Rhox genes, Rhox6 and 9. Furthermore, Rhox6 and 9 expression was decreased in female ES cells but not male ES cells indicating that KDM6A regulates Rhox gene expression in a sexually dimorphic manner.

2013-03-13 | GSE45034 | GEO

The transcriptomic effect of induced LRIG1 expression in NPC cells

Project description:As LRIG1 known to be a negative regulator of EGFR, we postulate that restored LRIG1 expression will change the transcription profile through the regulation of EGFR as well as its downstream signal cascades. Thus, we conducted a time-course microarray study to examine the effect of restored LRIG1 expression in NPC line, TW01-LG1/a, which the LRIG1 expression is under the control of a promoter with Doxycycline response element. We established stable transfectants of the LRIG1 gene in the TW01 cells which the expression of LRIG1 protein was barely detectable. To control the expression of LRIG1, the coding sequences were placed under the control of a promoter with doxycycline (Dox)-response element using the Tetoff system. Thus the LRIG1 expression could be turn on by removing Dox from the culture medium. Cellular total RNA were harvested along a time course of 12, 24, 36, and 48 hr following LRIG1 turn on expression, and then subjected to exon array analysis (Affymatrix Human Gene 1.0 ST), using the LRIG1 non-expressing sample (with Dox) as control for all comparison. For each time-point, a biological replicate was included.

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