Cytotoxic clerodane diterpenoids from the leaves of Premna tomentosa

Phytochemistry. 2006 Jun;67(12):1243-8. doi: 10.1016/j.phytochem.2006.04.015. Epub 2006 Jun 14.

Abstract

Three clerodane diterpenoids, premnones A-C (1-3), were isolated from a chloroform-soluble fraction of Premna tomentosa along with four known flavonoids and three known triterpenoids. Among these isolates, premnones A-C exhibited cytotoxic activity when evaluated against a small panel of tumor cell lines. However, premnone A was found to be inactive when evaluated in a follow-up in vivo hollow fiber assay at the highest dose tested (50mg/kg), using LNCaP, Lu1, and MCF-7 cells.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Cell Line, Tumor
  • Cell Survival / drug effects
  • Diterpenes, Clerodane / chemistry*
  • Diterpenes, Clerodane / isolation & purification
  • Diterpenes, Clerodane / pharmacology*
  • Drug Screening Assays, Antitumor
  • Female
  • Humans
  • Indonesia
  • Magnetic Resonance Spectroscopy
  • Male
  • Neoplasms / drug therapy*
  • Plant Leaves / chemistry*
  • Verbenaceae / chemistry*

Substances

  • Diterpenes, Clerodane
  • premnone A
  • premnone B
  • premnone C