Cadinane sesquiterpenes from Curcuma phaeocaulis with their inhibitory activities on nitric oxide production in RAW 264.7 cells

Fitoterapia. 2015 Jun:103:90-6. doi: 10.1016/j.fitote.2015.03.020. Epub 2015 Mar 24.

Abstract

Four new cadinane-type sesquiterpenes named phacadinanes A-D (1-4) were isolated from the rhizomes of Curcuma phaeocaulis. Their structures were elucidated by 1D and 2D NMR, as well as accurate mass measurements. Compound 4 was the first example of a rare 4,5-seco-cadinane sesquiterpene isolated from the Zingiberaceae family. Furthermore, inhibitory effects of the isolated compounds on nitric oxide production in LPS-activated macrophages were evaluated. Compounds 1 and 2 showed strong inhibitory activities on NO production with IC50 values of 3.88±0.58 and 2.25±0.71 μM, respectively. A possible biogenetic pathway for 4,5-seco-cadinane sesquiterpene (4) was postulated.

Keywords: Biogenetic pathway; Cadinane; Curcuma phaeocaulis; Nitric oxide; Sesquiterpenes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Line
  • Curcuma / chemistry*
  • Macrophages / drug effects*
  • Mice
  • Molecular Structure
  • Nitric Oxide / metabolism*
  • Polycyclic Sesquiterpenes
  • Rhizome / chemistry
  • Sesquiterpenes / pharmacology*

Substances

  • Polycyclic Sesquiterpenes
  • Sesquiterpenes
  • cadinane
  • Nitric Oxide