Title : Induction of PUMA-alpha and down-regulation of PUMA-beta expression is associated with benzo(a)pyrene-induced apoptosis in MCF-7 cells.

Pub. Date : 2009 Aug 10

PMID : 19397966






5 Functional Relationships(s)
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Compound Name
Protein Name
Organism
1 Benzo(a)pyrene (BP) forms benzo(a)pyrene-7,8-dihydrodiol-9,10-epoxide (BPDE)-DNA adducts in human breast adenocarcinoma MCF-7 cells, leading to p53 protein induction and phosphorylation. Benzo(a)pyrene tumor protein p53 Homo sapiens
2 Benzo(a)pyrene (BP) forms benzo(a)pyrene-7,8-dihydrodiol-9,10-epoxide (BPDE)-DNA adducts in human breast adenocarcinoma MCF-7 cells, leading to p53 protein induction and phosphorylation. Benzo(a)pyrene tumor protein p53 Homo sapiens
3 Here we have analyzed the effects of BP on p53 related apoptotic proteins, cell cycle and cell death in MCF-7 cells. Benzo(a)pyrene tumor protein p53 Homo sapiens
4 PUMA-protein (p53 up-regulated modulator of apoptosis) levels were changed after BP exposure so that PUMA-alpha protein was statistically significantly increased whereas PUMA-beta protein was statistically significantly decreased. Benzo(a)pyrene tumor protein p53 Homo sapiens
5 Our results suggest that PUMA-alpha protein is involved in BP-induced cell death most likely through a p53 dependent apoptotic pathway. Benzo(a)pyrene tumor protein p53 Homo sapiens