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- W2032680197 abstract "Artesunate (ART) is a semi-synthetic derivative of artemisinin extracted from the plant <i>Artemisia annua</i> is a safe and effective antimalarial drug. In the present investigation, ART was found also to inhibit angiogenesis in vivo and in vitro. The anti-angiogenic effect in vivo was evaluated in nude mice by means of human ovarian cancer HO-8910 implantation and immunohistochemical stainings for microvessel (CD<sub>31</sub>), vascular endothelial growth factor (VEGF) and VEGF receptor KDR/flk-1. Tumor growth was decreased and microvessel density was reduced following drug treatment with no apparent toxicity to the animals. ART also remarkably lowered VEGF expression on tumor cells and KDR/flk-1 expression on endothelial cells as well as tumor cells. The in vitro effect of ART was tested on models of angiogenesis, namely, proliferation, migration and tube formation of human umbilical vein endothelial cells (HUVEC). The results showed that ART significantly inhibited angiogenesis in a dose-dependent form in the range of 0.5∼50 µmol/l. Additionally, the inhibitory effect of ART on HVUEC proliferation was stronger than that on Hela, JAR, HO-8910 cancer cells, NIH-3T3 fibroblast cells and human endometrial cells, indicating that ART was selectively against HUVEC. These findings and the known low toxicity of ART are clues that ART may be a promising angiogenesis inhibitor." @default.
- W2032680197 created "2016-06-24" @default.
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- W2032680197 date "2004-01-01" @default.
- W2032680197 modified "2023-10-16" @default.
- W2032680197 title "Inhibitory Effects of Artesunate on Angiogenesis and on Expressions of Vascular Endothelial Growth Factor and VEGF Receptor KDR/flk-1" @default.
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- W2032680197 doi "https://doi.org/10.1159/000076256" @default.
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