A new antimicrobial fatty acid from the calcareous sponge Paragrantia cf. waguensis

Chem Biodivers. 2009 Sep;6(9):1374-7. doi: 10.1002/cbdv.200800199.

Abstract

A new acetylenic fatty acid, 1, has been isolated from the title sponge. The structure of the molecule was elucidated to contain an enyne and a thiophene by spectroscopic methods. Compound 1 showed a weak cytotoxic effect against NBT-T2 rat bladder epithelial cells (IC(50) > 20 microg/ml), and antimicrobial activity with minimal-inhibitory concentrations (MIC) of 64 and 128 microg/ml against Staphylococcus aureus and Escherichia coli, respectively.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Infective Agents / chemistry*
  • Anti-Infective Agents / isolation & purification
  • Anti-Infective Agents / toxicity
  • Cell Line
  • Fatty Acids, Unsaturated / chemistry*
  • Fatty Acids, Unsaturated / isolation & purification
  • Fatty Acids, Unsaturated / toxicity
  • Microbial Sensitivity Tests
  • Porifera / chemistry*
  • Rats
  • Thiophenes / chemistry*
  • Thiophenes / isolation & purification
  • Thiophenes / toxicity

Substances

  • 6-(5-((5E)-oct-5-en-7-ynyl)thiophen-2-yl)hex-5-ynoic acid
  • Anti-Infective Agents
  • Fatty Acids, Unsaturated
  • Thiophenes