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COMISION NACIONAL DE ENERGIA ATOMICA (CNEA)

Buenos Aires, AR

COMISION NACIONAL DE ENERGIA ATOMICA (CNEA) Patent applications
Patent application numberTitlePublished
20120022792METHOD OF QUANTIZATION OF MAGNETIC NANOPARTICLE ABSORPTION INTO ANIMAL TISSUES, AND EQUIPMENT FOR DOING IT - A method of quantization of magnetic nanoparticle absorption in animal tissues includes determination of the number of magnetic nanoparticles absorbed in animal tissues by magnetization measurements. The method is based on the measurement of magnetization versus magnetic field applied of the tissue sample absorbed with the nanoparticles obtaining their saturation magnetization. This magnitude is compared to the saturation magnetization of the same nanoparticles found in the tissue for the determination of the absolute number of magnetic nanoparticles in the animal tissue studied. The method includes preparing the samples for the sample holder, measuring the magnetization vs. applied magnetic field of a known number of magnetic nanoparticles, determining the saturation magnetization of the sample to be studied by measuring the magnetization and calculating the nanoparticle mass in the tissues from the data measured (saturation magnetization of the sample and of calibration of nanoparticles).01-26-2012
20100297024PROMOTER INDUCIBLE BY REACTIVE OXYGEN SPECIES AND VECTOR COMPRISING THE SAME - The invention provides promoters inducible by reactive oxygen species (ROS), capable of driving the expression of a gene of interest, particularly in a tumor cell. More particularly, it refers to promoters inducible by reactive oxygen species, that may be used to drive the expression of a gene of interest, such as a therapeutic gene, or a reporter gene for use in image diagnosis. The promoters comprise at least a fragment of a promoter sequence responsive to said reactive oxygen species, and corresponding to a gene highly expressed in cancer cells, wherein the fragment of the promoter sequence responsive to reactive oxygen species (ROS) is selected from the group of: the VE element of the VEGF promoter, the E6 element of the promoter of the EGR-1 gene, the MMP-1 element and a chimeric promoter containing an E6 element and a VE element. It also provides vectors carrying a human therapeutic or non therapeutic gene of interest, operably linked to said promoter sequence and compositions comprising the same.11-25-2010