Biseokeaniamides A, B, and C, Sterol <i>O</i>-Acyltransferase Inhibitors from an <i>Okeania</i> sp. Marine Cyanobacterium
作者:Arihiro Iwasaki、Takato Tadenuma、Shimpei Sumimoto、Taichi Ohshiro、Kaori Ozaki、Keisuke Kobayashi、Toshiaki Teruya、Hiroshi Tomoda、Kiyotake Suenaga
DOI:10.1021/acs.jnatprod.7b00137
日期:2017.4.28
Biseokeaniamides A, B, and C (1-3), structurally novel sterol O-acyltransferase (SOAT) inhibitors; were isolated from an Okeania sp. marine cyanobacterium. Their structures were elucidated by spectroscopic analyses and degradation reactions. Biseokeaniamide B (2) exhibited moderate cytotoxicity against human HeLa cancer cells, and compounds 1-3 inhibited both SOAT1 and SOAT2, not only at an enzyme level but also at a cellular level. Biseokeaniamides (1-3) are the first linear lipopeptides that have been shown to exhibit SOAT-inhibitory activity.