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- W1963930004 abstract "Recent evidence indicates that ghrelin, an endogenous ligand of the growth hormone secretagogue receptor (GHS-R), is highly expressed in the cardiovascular system, and in this study we addressed the possibility that ghrelin may affect angiogenesis in vitro and in vivo. Reverse transcription-polymerase chain reaction showed that human umbilical vein endothelial cells (HUVECs) express ghrelin and GHS-R mRNAs. Ghrelin inhibited FGF-2-induced proliferation of HUVECs cultured in vitro, the maximal effective concentration being 10(-8) M, and this effect was annulled by the GHS-R antagonist D-Lys3-growth hormone releasing peptide-6. FGF-2 stimulated HUVEC cultured on Matrigel to form capillary-like structures, and ghrelin (10(-8) M) suppressed this effect. In the chick embryo chorioallantoic membrane in vivo assay, FGF-2 induced a strong angiogenic response, which was counteracted by ghrelin (500 ng). Taken together, these findings suggest that ghrelin acts as an angiostatic molecule and indicate that its activity is comparable to that of a well-known angiostatic agent, i.e., vinblastine. The antiangiogenic activity of ghrelin deserves further investigations, alone or together with other antiangiogenic agents, for the treatment of pathological conditions characterized by enhanced angiogenesis." @default.
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- W1963930004 date "2004-12-01" @default.
- W1963930004 modified "2023-10-01" @default.
- W1963930004 title "Ghrelin inhibits FGF-2-mediated angiogenesis in vitro and in vivo" @default.
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- W1963930004 doi "https://doi.org/10.1016/j.peptides.2004.08.011" @default.
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