“…46 The glycosides, achlioniceosides A 1 , A 2 and A 3 , (Antarctic sea cucumber Achlionice Violaecuspidata) were the rst triterpene glycosides isolated from the sea cucumber belonging to the order Elasipodida, but the bioactivity has not been reported for these compounds. 47 Two holostanes with a trisaccharide moiety, pentactaside I (7) and II (8), and a disaccharide pentactaside III (9) rarely isolated from sea cucumbers (Pentacta quadrangularis, Zhanjiang, South China Sea) showed in vitro cytotoxicity against tumor cell lines (P-388, A-549, MCF-7, MKN-28, HCT-116, and U87MG). 46 The isomeric tetrasaccharides, pentactaside B (10) and C (11) (sea cucumber Pentacta quadrangularis, Guangdong Province), showed cytotoxicity against human tumor cell lines (P388, HCT-116, MCF-7, MKN-28, and A-549).…”