HepG2 cells exposed to Benzo[a]pyrene for 6,12,18,24,36 and 48h.
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ABSTRACT: HepG2 cells (human liver hepatocarcinoma) were exposed for 6 different time points (6,12,18,24,36 and 48h) to Benzo[a]pyrene (BaP) in duplicate.
Project description:HepG2 cells (human liver hepatocarcinoma) were exposed for 6 different time points (6,12,18,24,36 and 48h) to Benzo[a]pyrene (BaP) in duplicate. Total RNAs were ribo-depleted and sequenced on an Illumina Hiseq2000 in pair-end 100 bp reads. One of the duplicates for BaP-treated sample at the 24 hour time point was found to have a minor fastq file integrity issue and was removed from this data set as a precaution.
Project description:Lack of change in microRNA expression in adult mouse liver following treatment with benzo(a)pyrene (BaP), as detected using Agilent miRNA arrays. We have investigated the effect of exposure to 150 mg/kg benzo(a)pyrene (BaP) for 3 days on mRNA and miRNA expression levels in adult mouse liver. We used Agilent miRNA array platforms to assess effects of BaP exposure on miRNA expression levels. Our results indicate a distinct lack of effect of BaP of miRNA expression, despite widespread changes in mRNA levels. Keywords: Toxicology, miRNA
Project description:Lack of change in microRNA expression in adult mouse liver following treatment with benzo(a)pyrene (BaP), as detected using Exiqon miRNA arrays. Adult male mice were exposed to 150 mg/kg benzo(a)pyrene (BaP) or solvent for 3 days and sampled 4 hours after the last dose. MicroRNA expression levels in adult mouse liver were measured using Exiqon miRNA arrays. Our results indicate a distinct lack of effect of BaP of miRNA expression, despite widespread changes in mRNA levels (measured using Agilent arrays). Lack of miRNA changes was confirmed with Agilent miRNA arrays. Keywords: Toxicology, miRNA
Project description:The aim of this project was to investigate the differential effects of benzo[a]pyrene (BaP) treatment on global gene transcription, comparing normal (EPC-2) and cancer (WHCO1) cell lines from the oesophagus, in order to further our understanding of the molecular mechanisms of BaP-induced development and maintenance of oesophageal squamous cell carcinoma.
Project description:We performed microarray-based expression profiling on liver of male zebrafish exposed to 5, 50, and 500 µg/L of benzo-[A]-pyrene (BAP) for 24 and 96 hours, to identify global transcriptional programs and biological pathways involved in BAP-induced adaptive responses under in vivo environment.
Project description:Lack of change in microRNA expression in adult mouse liver following treatment with benzo(a)pyrene (BaP), as detected using Exiqon miRNA arrays. Adult male mice were exposed to 150 mg/kg benzo(a)pyrene (BaP) or solvent for 3 days and sampled 4 hours after the last dose. MicroRNA expression levels in adult mouse liver were measured using Exiqon miRNA arrays. Our results indicate a distinct lack of effect of BaP of miRNA expression, despite widespread changes in mRNA levels (measured using Agilent arrays). Lack of miRNA changes was confirmed with Agilent miRNA arrays. Keywords: Toxicology, miRNA Adult male B6C3F1 mice were exposed to a daily dose of corn oil (vehicle control group) or 150 mg/kg BaP (treatment group) for 3 d (n=6 per group). Mice were sacrificed at 4 h or 24 h following the last dose and liver lobes were extracted and flash frozen. Exiqon miRNA arrays were used to examine changes in miRNA transcript levels in random liver lobe sections.
Project description:In this research, we used MeDIP-sequencing technology to detect genome-wide methylation changes in benzo[a]pyrene(BaP)-exposed zebrafish larvae. We identified differentially methylated genes are associated with many diseases, including development of brain, and central nervous system.This high-throughput sequencing could help us to understand new mechanisms of BaP toxicity.
Project description:This SuperSeries is composed of the following subset Series: GSE36242: Transcriptomic response to benzo[a]pyrene treatment in HepG2 cells (RNA-Seq) GSE36243: Transcriptomic response to benzo[a]pyrene treatment in HepG2 cells (Affymetrix) Refer to individual Series
Project description:In this study, we investigate mRNA profiles in lung of mice exposed to benzo(a)pyrene. Male mice were exposed to three doses (25, 50, and 75 mg/kg/day BaP) for 28 days and profiles were examined three days post-exposure. Our analyses reveal that BaP causes pulmonary specific cellular transformation indicative of carcinogenesis.
Project description:Capelin (Mallotus villosus) is one of the important fish species in the arctic marine foodweb that could be vulnerable to contaminant exposure from offshore petroleum related activities. The study was conducted to map transcriptome responses in capelin liver slice culture exposed to benzo[a]pyrene (BaP). BaP is a polyaromatic hydrocarbon (PAH) which is among the most toxic compounds found in crude oil. Ex vivo liver slices culture was performed under 10 µM BaP exposure for 72 h and transcriptome analysis (RNA-seq) analysis was performed to characterize de novo transcriptome of the liver and identify genes responding to BaP exposure.