Transcriptomics

Dataset Information

5

Sub-chronic forestomach transcriptional response in adult male MutaTMMouse following oral exposure to benzo(a)pyrene


ABSTRACT: Benzo(a)pyrene is a well-established human carcinogen in humans and rodents. In the present study, we sought to determine the dose- and time-dependent changes in gene expression upon oral exposure to benzo(a)pyrene. Adult male MutaTMMouse were exposed to three doses of benzo(a)pyrene or vehicle control (olive oil) for 28 days and sacrificed three days after the final exposure. This experiment examined the forestomach transcriptional response of male mice exposed to BaP for 28 days at three different doses, including D1 (25 mg/kg BW/day), D2 (50 mg/kg BW/day), and D3 (75 mg/kg BW/day) and vehicle control. Each dose group was examined 72 hours following the final exposure. Each dose group and time point had 4-5 biological replicates. There were a total 17 samples (arrays) included in the final analysis using a two-colour reference design.

ORGANISM(S): Mus musculus  

SUBMITTER: Sabina Halappanavar   Sarah Labib  Charles Guo  Andrew Williams  Paul A White  Carole L Yauk 

PROVIDER: E-GEOD-43438 | ArrayExpress | 2013-09-27

SECONDARY ACCESSION(S): GSE43438PRJNA186427

REPOSITORIES: GEO, ArrayExpress

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Publications

Toxicogenomic outcomes predictive of forestomach carcinogenesis following exposure to benzo(a)pyrene: relevance to human cancer risk.

Labib Sarah S   Guo Charles H CH   Williams Andrew A   Yauk Carole L CL   White Paul A PA   Halappanavar Sabina S  

Toxicology and applied pharmacology 20130602 2


Forestomach tumors are observed in mice exposed to environmental carcinogens. However, the relevance of this data to humans is controversial because humans lack a forestomach. We hypothesize that an understanding of early molecular changes after exposure to a carcinogen in the forestomach will provide mode-of-action information to evaluate the applicability of forestomach cancers to human cancer risk assessment. In the present study we exposed mice to benzo(a)pyrene (BaP), an environmental carci  ...[more]

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