Three new cembranoid-type diterpenes from Red Sea soft coral Sarcophyton glaucum: isolation and antiproliferative activity against HepG2 cells

Eur J Med Chem. 2014 Jun 23:81:314-22. doi: 10.1016/j.ejmech.2014.05.016. Epub 2014 May 5.

Abstract

Three new cembranoids: sarcophytolol (1), sarcophytolide B (2), and sarcophytolide C (3), along with three known metabolites: 10(14)aromadendrene (4), deoxosarcophine (5), and sarcophine (6) were obtained from the soft bodied coral Sarcophyton glaucum. The structures were determined based on spectroscopic measurements (NMR, UV, IR and MS). Compounds 1, 3, and 4 had similar significant cytotoxic effects towards HepG2 (Human hepatocellular liver carcinoma; IC50 = 20 μM). 2 and 3 showed activity against MCF-7 (Human breast adenocarcinoma; IC50 25 ± 0.0164 and 29 ± 0.030 μM, respectively). Finally, 4 showed potent activity towards PC-3 (Prostate cancer; IC50 9.3 ± 0.164 μM). The antiproliferative activity of 1, 3 and 4, can be attributed, at least partly, to their ability to induce cellular apoptosis.

Keywords: Antiproliferative; Cembranes; HepG2; PC-3; Sarcophyton.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anthozoa
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / isolation & purification
  • Antineoplastic Agents / pharmacology
  • Apoptosis / drug effects
  • Cell Cycle / drug effects
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Chlorocebus aethiops
  • Diterpenes / chemistry
  • Diterpenes / isolation & purification
  • Diterpenes / pharmacology*
  • Dose-Response Relationship, Drug
  • Drug Screening Assays, Antitumor
  • Hep G2 Cells
  • Humans
  • MCF-7 Cells
  • Molecular Structure
  • Structure-Activity Relationship
  • Vero Cells

Substances

  • Antineoplastic Agents
  • Diterpenes