Pedicularioside G is a new compound of phenylpropanoid glycosides, isolated from Pedicularis striata in our laboratory. Pedicularioside G inhibited two major angiogenic responses, human umbilical vein endothelial cell proliferation and migration, as well as neovascularization in a chicken embryo chorioallantoic membrane model. In addition, pedicularioside G inhibited human hepatoma cells proliferation and migration in vitro along with transplanting tumour formation and growth in a chicken embryo chorioallantoic membrane model. So pedicularioside G has anti-angiogenic, antitumour growth, antimetastatic and antitumoural effects. Pedicularioside G also remarkably reduced reactive oxygen species level in both vein endothelial cells and hepatoma cells in a concentration-dependent manner. These results suggest that the anti-angiogenic and antitumoural effects of pedicularioside G might partially attribute to its antioxidative activity.
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Pedicularioside A from Buddleia lindleyana inhibits cell death induced by 1-methyl-4-phenylpyridinium ions (MPP+) in primary cultures of rat mesencephalic neurons.
Eur J Pharmacol
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Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Science, Peking University, 38 Xueyuan Road, Haidian District, Beijing, 100083, PR China.
Parkinson's disease is characterized by the progressive degeneration of midbrain dopaminergic neurons. Buddleia lindleyana is a traditional Chinese herb, commonly called Zui Yu Cao. The purification and identification of pedicularioside A and other phenylethanoid glycosides from this plant have been reported.
View Article and Find Full Text PDFNatural antioxidant pedicularioside G inhibits angiogenesis and tumourigenesis in vitro and in vivo.
Basic Clin Pharmacol Toxicol
January 2008
Institute of Biophysics, School of Life Sciences, Lanzhou University, Lanzhou, China.
Pedicularioside G is a new compound of phenylpropanoid glycosides, isolated from Pedicularis striata in our laboratory. Pedicularioside G inhibited two major angiogenic responses, human umbilical vein endothelial cell proliferation and migration, as well as neovascularization in a chicken embryo chorioallantoic membrane model. In addition, pedicularioside G inhibited human hepatoma cells proliferation and migration in vitro along with transplanting tumour formation and growth in a chicken embryo chorioallantoic membrane model.
View Article and Find Full Text PDFProtection of phenylpropanoid glycosides from Pedicularis against oxidative hemolysis in vitro.
Planta Med
August 1993
Department of Biology, Lanzhou University, People's Republic of China.
Five phenylpropanoid glycosides from Pedicularis, isoacteoside (1), acteoside (2), echinacoside (3), pedicularioside A (4), cistanoside D (5), and a chemically synthesised compound, permethylacteoside (6), as phenolic compounds can protect against oxidative hemolysis. The inhibitory activity is related to the number of phenolic hydroxy groups. Compounds 1, 2, 3, and 4, possessing four phenolic hydroxy groups, have stronger inhibitory activities than 5 possessing only two phenolic hydroxy groups, and compound 6 with no phenolic hydroxy group inhibited oxidative hemolysis weakly.
View Article and Find Full Text PDFInhibition of the autoxidation of linoleic acid by phenylpropanoid glycosides from Pedicularis in micelles.
Chem Phys Lipids
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Department of Biology, Lanzhou University, Gansu, People's Republic of China.
The activities of six phenylpropanoid glycosides as chain-breaking antioxidants have been studied for the autoxidation of linoleic acid in cetyl trimethylammonium bromide (CTAB) micelles at 37 degrees C. Verbascoside, isoverbascoside, echinacoside and pedicularioside A, which possess four phenolic hydroxyl groups, exhibited antioxidant activities, while cistanoside D possessing only two phenolic hydroxyl groups and permethyl verbascoside without phenolic hydroxyl group did not suppress the oxidation appreciably. The ratio of rate constants for inhibition and propagation kinh/kp and stoichiometric factor n were determined.
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