Absolute configuration and antitumor activity of myxochelin A produced by Nonomuraea pusilla TP-A0861

J Antibiot (Tokyo). 2006 Nov;59(11):698-703. doi: 10.1038/ja.2006.93.

Abstract

In the screening of antitumor compounds from microbial secondary metabolites, myxochelin A was isolated from a culture broth of Nonomuraea pusilla TP-A0861. The absolute configuration was determined to be S by synthesizing both enantiomers from an L- or D-lysine derivative and comparing their specific rotations. Both enantiomers of myxochelin A showed remarkable inhibitory effects on the invasion of murine colon 26-L5 carcinoma cells at non-cytotoxic concentrations.

MeSH terms

  • Actinobacteria / chemistry*
  • Actinobacteria / metabolism
  • Actinobacteria / ultrastructure
  • Animals
  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry*
  • Antineoplastic Agents / isolation & purification
  • Antineoplastic Agents / pharmacology*
  • Cell Adhesion / drug effects
  • Cell Line, Tumor
  • Cell Movement / drug effects
  • Colonic Neoplasms / drug therapy
  • Colonic Neoplasms / pathology
  • Lysine / analogs & derivatives*
  • Lysine / chemical synthesis
  • Lysine / chemistry
  • Lysine / isolation & purification
  • Lysine / pharmacology
  • Mice
  • Microscopy, Electron, Scanning
  • Nuclear Magnetic Resonance, Biomolecular
  • Spectrometry, Mass, Fast Atom Bombardment
  • Stereoisomerism

Substances

  • Antineoplastic Agents
  • myxochelin A
  • Lysine