Title : Benzo[a]pyrene-induced DNA damage and p53 modulation in human hepatoma HepG2 cells for the identification of potential biomarkers for PAH monitoring and risk assessment.

Pub. Date : 2006 Nov 1

PMID : 17029827






9 Functional Relationships(s)
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1 The response of phosphorylated p53 may be more sensitive towards benzo[a]pyrene exposure than normal p53. Benzo(a)pyrene tumor protein p53 Homo sapiens
2 Following DNA damage, the activation of p53 acts as a transcriptional regulator of several target genes, including, p21 protein; a gene that encodes the Cdk inhibitor and is induced by exposure to benzo[a]pyrene. Benzo(a)pyrene tumor protein p53 Homo sapiens
3 The p53 mRNA level was increased after the treatment of cells with benzo[a]pyrene, as well as following the induction of p53 protein, suggesting the benzo[a]pyrene-stimulated p53 accumulation may also be transcriptionally induced. Benzo(a)pyrene tumor protein p53 Homo sapiens
4 The p53 mRNA level was increased after the treatment of cells with benzo[a]pyrene, as well as following the induction of p53 protein, suggesting the benzo[a]pyrene-stimulated p53 accumulation may also be transcriptionally induced. Benzo(a)pyrene tumor protein p53 Homo sapiens
5 The p53 mRNA level was increased after the treatment of cells with benzo[a]pyrene, as well as following the induction of p53 protein, suggesting the benzo[a]pyrene-stimulated p53 accumulation may also be transcriptionally induced. Benzo(a)pyrene tumor protein p53 Homo sapiens
6 The p53 mRNA level was increased after the treatment of cells with benzo[a]pyrene, as well as following the induction of p53 protein, suggesting the benzo[a]pyrene-stimulated p53 accumulation may also be transcriptionally induced. Benzo(a)pyrene tumor protein p53 Homo sapiens
7 The overall results suggest that benzo[a]pyrene leads to serious DNA damage, which leads to the transcription of the p53 gene; that the subsequent p53 protein accumulation up-regulates the cellular p21 protein. Benzo(a)pyrene tumor protein p53 Homo sapiens
8 The overall results suggest that benzo[a]pyrene leads to serious DNA damage, which leads to the transcription of the p53 gene; that the subsequent p53 protein accumulation up-regulates the cellular p21 protein. Benzo(a)pyrene tumor protein p53 Homo sapiens
9 Oxidative DNA damage and p53 accumulation seem to be related to benzo[a]pyrene toxicity; however, their potential as biomarkers in environmental monitoring and risk assessment needs to be validated in the context of their specificity and sensitivity. Benzo(a)pyrene tumor protein p53 Homo sapiens