银纳米颗粒抑制血管内皮生长因子诱导的牛视网膜内皮细胞增殖和迁移。
Silver nanoparticles inhibit VEGF induced cell proliferation and migration in bovine retinal endothelial cells.
作者信息
Kalishwaralal Kalimuthu, Banumathi Elayappan, Ram Kumar Pandian SureshBabu, Deepak Venkataraman, Muniyandi Jeyaraj, Eom Soo Hyun, Gurunathan Sangiliyandi
机构信息
Department of Biotechnology, Division of Molecular and Cellular Biology, Kalasalingam University, Anand Nagar, Krishnankoil 626190, Tamil Nadu, India.
出版信息
Colloids Surf B Biointerfaces. 2009 Oct 1;73(1):51-7. doi: 10.1016/j.colsurfb.2009.04.025. Epub 2009 May 5.
Angiogenesis, the growth of new blood vessels from pre-existing vasculature is of physiological and pathological importance. We have investigated the anti-angiogenic potential of silver nanoparticles, produced by Bacillus licheniformis. Bovine retinal endothelial cells (BRECs) were treated with the different concentrations of silver nanoparticles for 24 h in the presence and absence of vascular endothelial growth factor (VEGF), where 500 nM (IC50) of silver nanoparticle concentration, was able to block the proliferation and migration of BRECs. The cells showed a clear enhancement in caspase-3 activity and formation of DNA ladders, evidence of induction of apoptosis. Here we report for the first time that silver nanoparticles inhibit cell survival via PI3K/Akt dependent pathway in Bovine retinal endothelial cells.
血管生成,即从已有的脉管系统中生长出新的血管,具有生理和病理重要性。我们研究了地衣芽孢杆菌产生的银纳米颗粒的抗血管生成潜力。在存在和不存在血管内皮生长因子(VEGF)的情况下,用不同浓度的银纳米颗粒处理牛视网膜内皮细胞(BRECs)24小时,其中500 nM(IC50)的银纳米颗粒浓度能够阻断BRECs的增殖和迁移。细胞显示出caspase-3活性明显增强和DNA梯形条带形成,这是细胞凋亡诱导的证据。在此我们首次报道银纳米颗粒通过PI3K/Akt依赖性途径抑制牛视网膜内皮细胞的存活。