Abstract
Angiogenesis plays an essential role in tumourigenesis and tumour progression, and anti-angiogenesis therapies have shown promising antitumour effects in solid tumours. 2-Methoxyestradiol (2ME2), an endogenous metabolite of estradiol, has been regarded as a potential antitumour agent mainly targeting angiogenesis. Here we synthesized a novel series of chalcones based on 2-methoxyestradiol and evaluated their potential activities against tumours. Compound 11e was demonstrated to have potent antiangiogenic activity. Further studies showed that 11e suppressed tumour growth in human breast cancer (MCF-7) xenograft models without obvious side effects. Evaluation of the mechanism revealed that 11e targeted the epithelial to mesenchymal transition (EMT) process in MCF-7 cells and inhibited HUVEC migration and then contributed to hindrance of angiogenesis. Thus, 11e may be a promising antitumour agent with excellent efficacy and low toxicity.
Keywords:
2-Methoxyestradiol; Angiogenesis; Antitumour; EMT; Migration.
Copyright © 2019. Published by Elsevier Masson SAS.
MeSH terms
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2-Methoxyestradiol / analogs & derivatives*
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2-Methoxyestradiol / chemical synthesis
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2-Methoxyestradiol / therapeutic use*
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2-Methoxyestradiol / toxicity
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Angiogenesis Inhibitors / chemical synthesis
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Angiogenesis Inhibitors / chemistry
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Angiogenesis Inhibitors / therapeutic use*
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Angiogenesis Inhibitors / toxicity
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Animals
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Antineoplastic Agents / chemical synthesis
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Antineoplastic Agents / chemistry
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Antineoplastic Agents / therapeutic use*
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Antineoplastic Agents / toxicity
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Cell Line, Tumor
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Cell Movement / drug effects
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Cell Proliferation / drug effects
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Chalcones / chemical synthesis
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Chalcones / chemistry
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Chalcones / therapeutic use*
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Chalcones / toxicity
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Chickens
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Chorioallantoic Membrane / drug effects
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Epithelial-Mesenchymal Transition / drug effects*
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Female
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Human Umbilical Vein Endothelial Cells
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Humans
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Male
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Mice, Nude
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Receptors, Vascular Endothelial Growth Factor / antagonists & inhibitors
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Stereoisomerism
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Xenograft Model Antitumor Assays
Substances
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Angiogenesis Inhibitors
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Antineoplastic Agents
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Chalcones
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2-Methoxyestradiol
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Receptors, Vascular Endothelial Growth Factor