New histone deacetylase inhibitors from the twigs of Melanorrhoea usitata

作者：Kumboonma Pakit; Senawong Thanaset; Saenglee Somprasong; Yenjai Chavi; Phaosiri Chanokbhorn^*

来源：Medicinal Chemistry Research, 2018, 27(8): 2004-2015.

DOI：10.1007/s00044-018-2209-6

• Melanorrhoea usitata
• Histone deacetylase
• HeLa cell
• Anticancer
• Molecular docking

Two new compounds, melanorrone (1) and melanorric acid (2), as well as 19 known compounds were isolated and identified from the twigs of Melanorrhoea usitata. Their structures were determined by spectroscopic methods (IR, H-1-NMR, C-13-NMR, 2D-NMR, MS, and ECD). The histone deacetylase (HDAC) inhibitory activities of the obtained compounds were evaluated. Melanorrone (1) along with five known compounds acted as good HDAC inhibitors at 100 mu M. Molecular docking experiments of these compounds with representatives of class I (HDAC2 and HDAC8) and class II (HDAC4 and HDAC7) HDAC isoforms displayed potential isoform-selective HDAC inhibitors. Molecular docking data showed consistent results to the in vitro experiments with the high selectivity towards HDAC4 and HDAC8.

• 出版日期2018-8