Reactive Oxygen Species Driven Angiogenesis by Inorganic Nanorods

The exact mechanism of angiogenesis by europium hydroxide nanorods was unclear. In this study we have showed that formation of reactive oxygen species (H2O2 and O2·−) is involved in redox signaling pathways during angiogenesis, important for cardiovascular and ischemic diseases. Here we used single-walled carbon nanotube sensor array to measure the single-molecule efflux of H2O2 and a HPLC method for the determination of O2·– from endothelial cells in response to proangiogenic factors. Additionally, reactive oxygen species-mediated angiogenesis using inorganic nanorods was observed in transgenic (fli1a:EGFP) zebrafish embryos.National Institutes of Health (U.S.) (CA150190)National Institutes of Health (U.S.) (grant HL70567)India. Dept. of Science and Technology (Ramanujan Fellowship grant (SR/S2/RJN-04/2010, GAP 0305\DST\CP))National Institutes of Health (U.S.) (HL090712)Children's Research Institute (Washington, D.C.