Title : Heat shock protein 90 inhibitors suppress aryl hydrocarbon receptor-mediated activation of CYP1A1 and CYP1B1 transcription and DNA adduct formation.

Pub. Date : 2008 Nov

PMID : 19138996






3 Functional Relationships(s)
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1 Inhibitors of HSP90 [17-allylamino-17-demethoxygeldanamycin (17-AAG); celastrol] suppressed these inductive effects of PAHs. celastrol heat shock protein 90 alpha family class A member 1 Homo sapiens
2 Treatment with 17-AAG and celastrol also caused a rapid and marked decrease in amounts of AhR protein without modulating levels of HSP90. celastrol heat shock protein 90 alpha family class A member 1 Homo sapiens
3 The reduction in B(a)P-induced DNA adducts was due, at least in part, to reduced metabolic activation of B(a)P. Collectively, these results suggest that 17-AAG and celastrol, inhibitors of HSP90, suppress the activation of AhR-dependent gene expression, leading, in turn, to reduced formation of B(a)P-induced DNA adducts. celastrol heat shock protein 90 alpha family class A member 1 Homo sapiens