Abstract:
The present invention relates to an image material and a method for manufacturing the same and, more particularly, to an atherosclerotic plaque-specific MR image contrast agent and a method for manufacturing the same. The contrast agent of the present invention is an active contrast agent which is able to diagnose early atherosclerotic plaque and effectively realizes the atherosclerotic plaque-specific MR image by controlling the size of the phospholipid nanoparticles and extending the residence time of the phospholipid nanoparticles in the blood vessels. Also, the contrast agent is able to acquire an MR image using an amount less than the existing passive contrast agent and is able to easily diagnose diseases accompanying the atherosclerosis.
Abstract:
PURPOSE: A method for manufacturing an atherosclerotic plaque-specific MR contrast media is provided to enable early diagnosis of atherosclerotic plaque and to control the size of phospholipid nanoparticles. CONSTITUTION: An image material contains atherosclerotic plaque-specific target and MR contrast media conjugated to phospholipid nanoparticles(PLN). The average size of the nanoparticles is fai=5-100 nm. The contrast medium is gadolinium complex or iron oxide nanoparticles. The specific target contains pIL-4 peptide(LQRLFRAFRCLK)and cRGD(RGDfK).
Abstract:
PURPOSE: A method for differentiation and dedifferentiation between adult stem cells and neural cells is provided to enhance differentiation efficiency and to be applied in various therapeutic methods for treating nervous diseases. CONSTITUTION: A method for inducing differentiation between adult stem cells and neural cells comprises a step of controlling an inhibitor of expression or activation of CDKs(cyclin-dependent kinase). The adult stem cells are differentiated into neural cells by treating the inhibitor. The neural cells are dedifferentiated from neural cells into adult stem cells by removing the inhibitor. The inhibitor includes a compound, siRNA, shRNA, antisense olibonucleotide, or antibody. The shRNA for CDK1, CDK2, and CDK4 contains a base sequence of sequence numbers 13 or 14, 15 or 16, and 17 or 18, respectively.