Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0

Transcription profiling by array of human amnion epithelial FL cells treated with the carcinogen BPDE at low concentration


ABSTRACT: The environmental carcinogen, (±)-anti-benzo[a]pyrene-7,8-diol-9,10-epoxide (BPDE), causes bulky-adduct DNA damages, triggers certain signaling pathways, and elicits gene expression changes. Here, we focused on the temporal gene expression changes induced by a low concentration (0.05 µM) BPDE in human amnion epithelial FL cells. Differential gene expression profiles at 1, 10 and 22 h post BPDE treatment were obtained using Affymetrix HG-U133 Plus 2.0 oligonucleotide microarrays. A cohort of gene expression changes related to cell cycle progression, cell growth or apoptosis, stress response, and post-transcriptional regulation was validated with quantitative real-time RT-PCR. The alteration of several cell cycle-related genes was correlated and possibly contributed to the cell cycle arrest phenotype. Paradoxical transcriptional regulations regarding cell growth or apoptosis emerged in response to BPDE treatment, which indicated that cell fate was determined by integrated signals. The temporal transcriptional changes would be of help to clarify the molecular mechanism of cellular response to BPDE. Experiment Overall Design: Human amnion epithelial FL cells were exposed to vehicle control (dimethyl sulfoxide) and a low concentration (0.05 µM) (±)-anti-benzo[a]pyrene-7,8-diol-9,10-epoxide, respectively. The differential gene expression profiles at 1, 10 and 22 h post BPDE treatment were obtained using Affymetrix HG-U133 Plus 2.0 oligonucleotide microarrays. The transcriptomic changes at different time points post BPDE treatment would provide insight into the dynamic processes of cellular response to this genotoxic agent.

ORGANISM(S): Homo sapiens

SUBMITTER: Lu XiangYun 

PROVIDER: E-GEOD-10979 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

altmetric image

Publications

Temporal gene expression changes induced by a low concentration of benzo[a]pyrene diol epoxide in a normal human cell line.

Lu Xiangyun X   Shao Jimin J   Li Hongjuan H   Yu Yingnian Y  

Mutation research 20091214 1-2


(+ or -)-anti-Benzo[a]pyrene-7,8-diol-9,10-epoxide (BPDE), which causes bulky-adduct DNA damage, is well-characterized as the ultimate carcinogen of benzo[a]pyrene (BaP). In this study, we have employed Affymetrix HG-U133 Plus 2.0 microarray and quantitative real-time RT-PCR methods to investigate a temporal transcriptomic response triggered by a low concentration (0.05 microM) of BPDE at 1, 10, and 22 h after exposure in normal human cells. The differential gene expression profiles at the three  ...[more]

Similar Datasets

2008-04-08 | E-GEOD-7675 | biostudies-arrayexpress
2009-01-01 | GSE10979 | GEO
2007-11-13 | GSE9547 | GEO
| PRJNA99729 | ENA
2010-01-01 | GSE19510 | GEO
2008-01-01 | GSE7675 | GEO
2010-04-29 | E-GEOD-21532 | biostudies-arrayexpress
2023-02-01 | GSE224001 | GEO
| PRJNA675917 | ENA
2018-07-10 | GSE116804 | GEO