PUBLICATION

Picrotoxane sesquiterpenoids from the stems of Dendrobium nobile and their absolute configurations and angiogenesis effect

Authors
Meng, C.W., He, Y.L., Peng, C., Ding, X.J., Guo, L., Xiong, L.
ID
ZDB-PUB-170806-7
Date
2017
Source
Fitoterapia   121: 206-211 (Journal)
Registered Authors
Keywords
Absolute configuration, Angiogenesis effect, Dendrobium nobile, Picrotoxane, Sesquiterpenoids, Transgenic zebrafish
MeSH Terms
  • Alkaloids/isolation & purification
  • Alkaloids/pharmacology*
  • Angiogenesis Inducing Agents/isolation & purification
  • Angiogenesis Inducing Agents/pharmacology*
  • Animals
  • Animals, Genetically Modified
  • Dendrobium/chemistry*
  • Molecular Structure
  • Plant Stems/chemistry
  • Sesquiterpenes/isolation & purification
  • Sesquiterpenes/pharmacology*
  • Zebrafish
PubMed
28778562 Full text @ Fitoterapia
Abstract
Five picrotoxane sesquiterpenoids belonging to the unusual dendrobine-type (1 and 4) and the picrotoxinin-type (2, 3, and 5) were isolated from the stems of Dendrobium nobile Lindl. Their structures were established by spectroscopic analyses and physical properties. Compound 1 was a new dendrobine analogue. Although the planar structure of 2 and 3 had been reported, their absolute configurations were first determined by single-crystal X-ray diffraction and circular dichroism. Compound 2 exhibited angiogenesis effect against sunitinib-induced damage on intersegmental blood vessels in Tg (flk1: EGFP) and Tg (fli1: nEGFP) transgenic zebrafish at concentrations of 3.13, 6.25, 12.50, and 25.00μM.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping