Yong Serk Park

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Utilizing three biocompatible components, a series of novel cationic lipids has been chemically synthesized and tested for their gene-transferring capabilities in 293 transformed kidney cells and B16BL6 mouse melanoma cells. The synthesized cationic lipids consisting of a core of lysine and aspartic acid with hydrocarbon chains of varied length were(More)
To minimize the systemic toxicity prevalent to chemotherapeutics, we designed a novel anticancer drug-encapsulating liposome conjugated with an RNA aptamer specific to the prostate specific membrane antigen (PSMA), which is expressed on the surface of prostate cancer cells. The RNA aptamer-conjugated liposome, termed an aptamosome, was prepared by the(More)
Targeted mRNA degradation by short interfering RNAs (siRNAs) offers a great potential to treat cancers. siRNA therapeutics for leukemias are, however, hindered by poor intracellular uptake, limited blood stability and nonspecific delivery. To solve these problems, we developed an anti-JL1 immunonanoplex (antibody-coupled nanocomplex) for siRNA delivery(More)
Recently, salmosin, a novel snake venom-derived disintegrin containing the Arg-Gly-Asp (RGD) sequence, was reported to be both antiangiogenic and antitumorigenic. The antitumor activity was substantiated by in vivo administration of recombinant salmosin into mice bearing tumors. However, it was difficult to prepare functionally active recombinant salmosin(More)
Tumor-specific targeting is a critical goal in the research area of liposomal drug delivery. Identification of the specific interactions between ligands and target tumor cells is a principle prerequisite in achieving this goal. Generally, tumor cells aberrantly express tumor-associated antigens that can be utilized as appropriate target molecules.(More)
PURPOSE This study examined whether or not conservative treatment of an acutely injured anterior cruciate ligament (ACL) could be successful in a select group of patients. Routine ACL reconstruction surgery in all acute ACL-injured patients should be avoided. We hypothesize that acutely injured ACL with mild instability at the initial physical examination(More)
We chemically synthesized two different cationic lipids consisting of a core of lysine, two C-14 hydrocarbon chains, and either aspartatic acid or glutamic acid. The lipids were assigned the acronyms, DMKD and DMKE. Cationic liposomes prepared with the two different lipids were tested for their gene-transferring capabilities in various cell lines compared(More)
Fusogenic liposomes that incorporate Sendai virus envelope proteins, so-called Sendai virosomes, have been developed for in vitro and in vivo genetic modification of animal cells. In this study, several different virosomes of varying lipid compositions were formulated and their in vitro gene-transfer efficiencies compared. The virosomes were prepared by(More)
PURPOSE This study examined the functional and magnetic resonance imaging (MRI) outcomes of popliteal cysts with combined intra-articular pathologies that were treated arthroscopically by decompression and a cystectomy through an additional posteromedial cystic portal. METHODS From January 2003 to March 2008, 31 patients were treated with a modified(More)
AIM The purpose of this study was to assess the correlations between dynamic postural stability and muscle strength, anterior instability, and knee scores in anterior cruciate ligament (ACL) deficient knees. METHOD We examined 40 male patients with ACL injury prior to surgery. Maximal torques of flexors and extensors of the injured knee at 60 and 180(More)