Cytotoxic polyhydroxylated steroids from the South China Sea soft coral Lobophytum sp

Steroids. 2019 Jan:141:76-80. doi: 10.1016/j.steroids.2018.11.015. Epub 2018 Dec 1.

Abstract

Four new polyhydroxylated steroids lobophysterols A-D (1-4), together with two known related compounds sarcophytosterol (5) and klyflaccisteroid B (6), were isolated from the South China Sea soft coral Lobophytum sp. Their structures were elucidated on the basis of spectroscopic analysis and by comparison with those reported in the literature. In bioassay, compound 4 showed weak cytotoxicities against HT-29, SNU-398, and Capan-1 cells.

Keywords: Cytotoxicity; Lobophysterols A–D; Lobophytum sp.; Polyhydroxylated steroids; Soft coral.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anthozoa / chemistry*
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / isolation & purification
  • Antineoplastic Agents / pharmacology*
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • China
  • Dose-Response Relationship, Drug
  • Drug Screening Assays, Antitumor
  • Humans
  • Molecular Conformation
  • Oceans and Seas
  • Structure-Activity Relationship

Substances

  • Antineoplastic Agents