New cytotoxic bisindole alkaloids with protein tyrosine kinase inhibitory activity from a myxomycete Lycogala epidendrum

Bioorg Med Chem Lett. 2005 Jun 2;15(11):2776-80. doi: 10.1016/j.bmcl.2005.03.103.

Abstract

Two new bisindole alkaloids, 6-hydroxystaurosporinone (1) and 5,6-dihydroxyarcyriaflavin A (2) were isolated from field-collected fruit bodies of a myxomycete Lycogala epidendrum, along with eight known bisindoles (3-10). The structures of these new compounds were determined on the basis of spectroscopic data. Compounds 1 and 2 showed cytotoxicity against HeLa, Jurkat, and vincristine resistant KB/VJ300 cells, and compound 1, particularly, inhibited protein tyrosine kinase activity.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkaloids / isolation & purification
  • Alkaloids / pharmacology*
  • Animals
  • Enzyme Inhibitors / isolation & purification
  • Enzyme Inhibitors / pharmacology*
  • HeLa Cells
  • Humans
  • Magnetic Resonance Spectroscopy
  • Mice
  • Myxomycetes / chemistry*
  • NIH 3T3 Cells
  • Protein-Tyrosine Kinases / antagonists & inhibitors*

Substances

  • Alkaloids
  • Enzyme Inhibitors
  • Protein-Tyrosine Kinases