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BACKGROUND The urokinase plasminogen activator (uPA) and its receptor (uPAR/CD87) are major regulators of extracellular matrix degradation and are involved in cell migration and invasion under physiological and pathological conditions. The uPA/uPAR system has been of great interest in cancer research because it is involved in the development of most(More)
A method that greatly improves the crystal quality of Gallium Nitride grown on plane Sapphire substrate by Metal-organic Chemical Vapor Deposition (MOCVD) was proposed. High level quality of GaN film was obtained on plane Sapphire substrate using this method by adding predose GaN layers before the growth of buffer layer, which is almost comparable to that(More)
Two novel dichlorophenyl urea compounds, SR4 and SR9, were synthesized in our laboratory and evaluated for anti-cancer activities. Specifically, we investigated the antiproliferative properties of these new compounds on promyelocytic HL-60 leukemia cells by analyzing their effects on cell differentiation, cell cycle progression and apoptosis. SR4 and SR9(More)
In order to understand the diffusion of group III ad-atoms (Al, Ga, In) on non-polar gallium nitrides surface, the first-principles calculations were performed using the Car-Parrinello molecular dynamics (CPMD) method. Our calculation results reveal that diffusion barriers of Aluminum ad-atom on non-polar gallium nitride surface is anisotropy, while the(More)
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