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Global gene expression analysis of fresh-frozen, furan-exposed mouse liver using RNA-seq [polyA enrichment]

ABSTRACT: Furan is a mouse and rat hepatocarcinogen. We sought to determine if furan-induced gene expression changes could be detected in paired fresh-frozen and formalin-fixed paraffin embedded (FFPE) samples using RNA-seq (polyA-enrichment protocol). All samples in this study (fresh-frozen, 18 hours in formalin, 3 weeks in formalin) were also examined using one- and two-colour microarrays and RNA-seq (ribo-depletion protocol) in order to determine the effect of the technology on gene expression profiles.

ORGANISM(S): Mus musculus

PROVIDER: GSE64371 | GEO | 2015/10/14

SECONDARY ACCESSION(S): PRJNA270847

REPOSITORIES: GEO

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Global gene expression analysis of fresh-frozen, furan-exposed mouse liver using RNA-seq [ribo-depletion]

Project description:Furan is a mouse and rat hepatocarcinogen. We sought to determine if furan-induced gene expression changes could be detected in paired fresh-frozen and formalin-fixed paraffin embedded (FFPE) samples using RNA-seq (ribo-depletion protocol). All samples in this study (fresh-frozen, 18 hours in formalin, 3 weeks in formalin) were also examined using one- and two-colour microarrays and RNA-seq (polyA-enrichment protocol) in order to determine the effect of the technology on gene expression profiles.

2015-10-14 | GSE64370 | GEO

Global gene expression analysis of fresh-frozen, furan-exposed mouse liver using one-colour Agilent microarrays

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Global gene expression analysis of formalin-fixed paraffin-embedded (FFPE), furan-exposed mouse liver using two-colour Agilent microarrays

Project description:Furan is a mouse and rat hepatocarcinogen. We sought to determine if furan-induced gene expression changes could be detected in paired fresh-frozen (GSE48644) and formalin-fixed paraffin embedded (FFPE; this study) samples using two-colour microarrays. To determine the effect of time-in-formalin on gene expression signatures we performed microarray analysis of livers that were fixed in formalin for 18 hours or 3 weeks. All samples (fresh-frozen, 18 hours in formalin, 3 weeks in formalin) were also examined using one-colour microarrays and RNA-seq (ribo-depletion and polyA-enrichment protocols) in order to determine the effect of the technology on gene expression profiles.

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The effect of BrdU on gene expression profiles of B6C3F1 mice treated with furan

Project description:Furan is a mouse and rat hepatocarcinogen. We sought to determine the dose-dependent changes in gene expression upon exposure of B6C3F1 mice to furan in order to better understand furan’s mode of action. In this study we examined the transcriptional response in liver tissue of female B6C3F1 mice to BrdU treatment (in drinking water for 5 days before sacrifice). This was a toxicogenomic study in which mice were also exposed to 0, 1 or 8 mg/kg bw furan (by oral gavage) for 3 weeks. Mice were sacrificed four hours after the final furan exposure. Each dose group had 4-5 biological replicates. We used a two-colour reference design and SurePrint G3 Mouse GE 8x60K microarrays (Agilent). Please note that data for all non-BrdU treated animals was previously reported in GEO [GSE48644]. All samples (with or without BrdU) were part of the same randomized block design for the microarrays.

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Project description:Furan is a mouse and rat hepatocarcinogen. We sought to determine the dose-dependent changes in gene expression upon exposure of B6C3F1 mice to furan in order to better understand furan’s mode of action. Adult female B6C3F1 mice were exposed to 1, 2, 4 or 8 mg/kg bw furan or vehicle control (corn oil) for three weeks and sacrificed four hours after the final exposure. In this study we examined the transcriptional response in liver tissue of female B6C3F1 mice exposed to furan for 3 weeks at four different doses: 1, 2, 4 or 8 mg/kg bw furan (or vehicle control) and sacrificed four hours after the final exposure. Each dose group had 4-5 biological replicates. There were a total of 25 samples included in the final analysis. We used a two-colour reference design and SurePrint G3 Mouse GE 8x60K microarrays (Agilent).

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Cell death and regenerative proliferation pathways in hepatocellular carcinoma: The effect of furan on B6C3F1 mouse global gene expression in liver

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