A macrocircular ellagitannin, oenothein B, suppresses mouse mammary tumor gene expression via inhibition of poly(ADP-ribose) glycohydrolase - PubMed (original) (raw)
. 1995 May 16;210(2):329-37.
doi: 10.1006/bbrc.1995.1665.
Affiliations
- PMID: 7755607
- DOI: 10.1006/bbrc.1995.1665
A macrocircular ellagitannin, oenothein B, suppresses mouse mammary tumor gene expression via inhibition of poly(ADP-ribose) glycohydrolase
K Aoki et al. Biochem Biophys Res Commun. 1995.
Abstract
Oenothein B, a macrocircular dimeric ellagitannin, was found to be a potent and specific inhibitor of poly(ADP-ribose) glycohydrolase. Oenothein B suppressed glucocorticoid-sensitive mouse mammary tumor virus (MMTV) transcription in 34I cells. This suppression was accompanied by inhibition of glucocorticoid-induced endogeneous de-poly(ADP-ribosyl)ation of high mobility group (HMG) 14 and 17 proteins. These results suggest that de-poly(ADP-ribosyl)ation of these proteins may be closely connected with the events initiating glucocorticoid-sensitive MMTV gene transcription.
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