血管生成
HIF1A型
细胞凋亡
信号转导
化学
癌症研究
斑马鱼
药理学
姜黄素
细胞生物学
体内
生物化学
生物
遗传学
基因
作者
Zigang Cao,Shicong He,Yuyang Peng,Xinjun Liao,Huiqiang Lu
出处
期刊:Current Neurovascular Research
[Bentham Science]
日期:2020-08-04
卷期号:17 (2): 147-154
被引量:3
标识
DOI:10.2174/1567202617666200207130039
摘要
Background: Curcumin has anti-inflammatory, antioxidant and anticancer properties. Despite the considerable evidence showing that curcumin is an efficacious and safe compound for multiple medicinal benefits, there are some demerits with respect to the therapeutic effectiveness of curcumin, namely, poor stability and solubility, and its role in angiogenesis in vivo is still not yet clear. More recently, the biodegradable polymer nanoparticles have been developed. This offers promise for the therapeutic effectiveness of curcumin by increasing its bioavailability, solubility and retention time. : Here, we compared the medicinal effectiveness of curcumin and nanocurcumin (NC), and found that nanocurcumin can inhibit angiogenesis more effectively than curcumin in zebrafish. Tests of proliferation and apoptosis showed no difference between nanocurcumin-treated and wildtype embryos. Results: qPCR and in situ hybridization experiments indicated that the VEGF signaling pathway genes, vegfa, VEGF-C and flt4 were all down-regulated after nanocurcumin treatment, and vegfa over-expression rescued the vascular defective phenotype. Moreover, hif1a expression also decreased and hif1a over-expression also rescued the vascular defective phenotype but the Notch signaling pathway had no difference after nanocurcumin treatment. Conclusion: These results indicate that nano curcumin inhibits angiogenesis in zebrafish by downregulating hif1a/vegfa signaling pathway. Hence, our work reveals the key role of nanocurcumin in angiogenesis in vivo.
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