Paradoxical effects of polyphenolic compounds from Clusiaceae on angiogenesis

Among six tested polyphenolic compounds from Clusiaceae, the two endothelium-dependent vasodilatators isocalolongic acid (IA) and 2-deprenylrheediaxanthone (DRX) showed paradoxical effects on in vitro angiogenesis, IA being pro-angiogenic and DRX anti-angiogenic. Clusiaceae plants display high conte...

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Veröffentlicht in:Biochemical pharmacology 2012-02, Vol.83 (4), p.514-523
Hauptverfasser: Lavaud, Alexis, Soleti, Raffaella, Hay, Anne-Emmanuelle, Richomme, Pascal, Guilet, David, Andriantsitohaina, Ramaroson
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container_end_page 523
container_issue 4
container_start_page 514
container_title Biochemical pharmacology
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creator Lavaud, Alexis
Soleti, Raffaella
Hay, Anne-Emmanuelle
Richomme, Pascal
Guilet, David
Andriantsitohaina, Ramaroson
description Among six tested polyphenolic compounds from Clusiaceae, the two endothelium-dependent vasodilatators isocalolongic acid (IA) and 2-deprenylrheediaxanthone (DRX) showed paradoxical effects on in vitro angiogenesis, IA being pro-angiogenic and DRX anti-angiogenic. Clusiaceae plants display high contents of xanthones and coumarins, the effects of which on endothelium, more particularly on angiogenesis, have not been assessed yet. We screened the capacity of six molecules from Clusiaceae – belonging to xanthones, coumarins and acid chromanes classes – to induce endothelium-dependent relaxation on mice aortic rings. Endothelial nitric oxide (NO) production was assessed in endothelial cell line using electron paramagnetic resonance technique. Then, the capacity of these molecules to induce capillary-like structures of endothelial cells was assessed. Cellular processes implicated in angiogenesis (adhesion, migration and proliferation) and Western blot analyses were then investigated. Among the tested molecules, isocalolongic acid (IA) and 2-deprenylrheediaxanthone (DRX) induced an endothelium-dependent relaxation of the aorta associated with an increase of NO production in endothelial cells. Using in vitro and ex vivo angiogenesis assays, it was shown that IA treatment promoted the formation of capillary-like network. In contrast, DRX prevented the ability of vascular endothelial growth factor (VEGF) to increase the formation of capillary-like network. IA increased endothelial cell proliferation while DRX decreased all cellular processes of angiogenesis. Western blot analysis showed that IA increased VEGF expression whereas DRX decreased ICAM-1 expression. Altogether, these data allowed identifying isolated molecules from Clusiaceae that exhibit a potential activity towards the modulation of endothelium-dependent relaxation involving NO release. Interestingly, they also highlighted paradoxical effects of the two compounds on cellular angiogenic processes, IA being pro-angiogenic and DRX anti-angiogenic.
doi_str_mv 10.1016/j.bcp.2011.12.002
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Using in vitro and ex vivo angiogenesis assays, it was shown that IA treatment promoted the formation of capillary-like network. In contrast, DRX prevented the ability of vascular endothelial growth factor (VEGF) to increase the formation of capillary-like network. IA increased endothelial cell proliferation while DRX decreased all cellular processes of angiogenesis. Western blot analysis showed that IA increased VEGF expression whereas DRX decreased ICAM-1 expression. Altogether, these data allowed identifying isolated molecules from Clusiaceae that exhibit a potential activity towards the modulation of endothelium-dependent relaxation involving NO release. 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Using in vitro and ex vivo angiogenesis assays, it was shown that IA treatment promoted the formation of capillary-like network. In contrast, DRX prevented the ability of vascular endothelial growth factor (VEGF) to increase the formation of capillary-like network. IA increased endothelial cell proliferation while DRX decreased all cellular processes of angiogenesis. Western blot analysis showed that IA increased VEGF expression whereas DRX decreased ICAM-1 expression. Altogether, these data allowed identifying isolated molecules from Clusiaceae that exhibit a potential activity towards the modulation of endothelium-dependent relaxation involving NO release. 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subjects 15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid
adhesion
Angiogenesis
Animals
aorta
Aorta - drug effects
Biodiversity and Ecology
Blotting, Western
Cell Adhesion
Cell Movement
Cell Proliferation
Cells, Cultured
Clusiaceae
Clusiaceae - chemistry
coumarins
electron paramagnetic resonance spectroscopy
endothelial cells
Endothelium
Endothelium, Vascular - drug effects
Environmental Sciences
Humans
Life Sciences
Male
Mice
Molecular Structure
Neovascularization, Physiologic - drug effects
Nitric oxide
Nitric Oxide - metabolism
Pharmaceutical sciences
Pharmacology
polyphenols
Polyphenols - chemistry
Polyphenols - pharmacology
Tissue Culture Techniques
vascular endothelial growth factors
Western blotting
Xanthone
xanthones
title Paradoxical effects of polyphenolic compounds from Clusiaceae on angiogenesis
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