Delayed and Prolonged Histone Hyperacetylation with a Selective HDAC1/HDAC2 Inhibitor

作者:Methot Joey L*; Hoffman Dawn Mampreian; Witter David J; Stanton Matthew G; Harrington Paul; Hamblett Christopher; Siliphaivanh Phieng; Wilson Kevin; Hubbs Jed; Heidebrecht Richard; Kral Astrid M; Ozerova Nicole; Fleming Judith C; Wang Hongmei; Szewczak Alexander A; Middleton Richard E; Hughes Bethany; Cruz Jonathan C; Haines Brian B; Chenard Melissa; Kenific Candia M; Harsch Andreas; Secrist J Paul; Miller Thomas A
来源:ACS Medicinal Chemistry Letters, 2014, 5(4): 340-345.
DOI:10.1021/ml4004233

摘要

The identification and in vitro and in vivo characterization of a potent SHI-1:2 are described. Kinetic analysis indicated that biaryl inhibitors exhibit slow binding kinetics in isolated HDAC1 and HDAC2 preparations. Delayed histone hyperacetylation and gene expression changes were also observed in cell culture, and histone acetylation was observed in vivo beyond disappearance of drug from plasma. In vivo studies further demonstrated that continuous target inhibition was well tolerated and efficacious in tumor-bearing mice, leading to tumor growth inhibition with either once-daily or intermittent administration.

  • 出版日期2014-4