Abstract:
:Rhus verniciflua Stokes has been used as a traditional herbal medicine in Asia. In this study, the effect of R. verniciflua extract on human aromatase (cytochrome P450 19, CYP19) activity was investigated to elucidate the mechanism for the effect of R. verniciflua extract on androgen hormone levels. Androstenedione was used as a substrate and incubated with R. verniciflua extract in cDNA-expressed CYP19 supersomes in the presence of NADPH, and estrone formation was measured using liquid chromatography-tandem mass spectrometry. R. verniciflua extract was assessed at concentrations of 10-1000 μg/mL. The resulting data showed that R. verniciflua extract inhibited CYP19-mediated estrone formation in a concentration-dependent manner with an IC50 value of 136 μg/mL. Subsequently, polyphenolic compounds from R. verniciflua extract were tested to identify the ingredients responsible for the aromatase inhibitory effects by R. verniciflua extract. As a result, butin showed aromatase inhibitory effect in a concentration-dependent manner with an IC50 value of 9.6 μM, whereas the inhibition by other compounds was negligible. These results suggest that R. verniciflua extract could modulate androgen hormone levels via the inhibition of CYP19 activity and butin is a major ingredient responsible for this activity.
journal_name
Bioorg Med Chem Lettjournal_title
Bioorganic & medicinal chemistry lettersauthors
Park MH,Kim IS,Kim SA,Na CS,Hong CY,Dong MS,Yoo HHdoi
10.1016/j.bmcl.2014.02.039subject
Has Abstractpub_date
2014-04-01 00:00:00pages
1730-3issue
7eissn
0960-894Xissn
1464-3405pii
S0960-894X(14)00171-1journal_volume
24pub_type
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