Do Kyung Kim

Learn More
The L-type amino acid transporter 1 (LAT1) is an Na(+)-independent neutral amino acid transporter subserving the amino acid transport system L. Because of its broad substrate selectivity, system L has been proposed to be responsible for the permeation of amino acid-related drugs through the plasma membrane. To understand the mechanisms of substrate(More)
UNLABELLED The liver plays an important role in the elimination of endogenous and exogenous lipophilic organic compounds from the body, which is mediated by various carrier proteins that differ in substrate specificity and kinetic properties. Here, we have characterized a novel member of the organic anion transporter family (SLC22) isolated from human(More)
A cDNA that encodes a novel Na+-independent neutral amino acid transporter was isolated from FLC4 human hepatocarcinoma cells by expression cloning. When expressed in Xenopus oocytes, the encoded protein designated LAT3 (L-type amino acid transporter 3) transported neutral amino acids such as l-leucine, l-isoleucine, l-valine, and l-phenylalanine. The(More)
System T is a Na+-independent transport system that selectively transports aromatic amino acids. Here, we determined the structure of the human T-type amino-acid transporter-1 (TAT1) cDNA and gene (SLC16A10). The human TAT1 cDNA encoded a 515-amino-acid protein with 12 putative membrane-spanning domains. Human SLC16A10 was localized on human chromosome 6,(More)
The system L-amino acid transporter is a major nutrient transport system that is responsible for Na+-independent transport of neutral amino acids including several essential amino acids. We have compared and examined the expressions and functions of the system L-amino acid transporters in both rat astrocyte cultures and C6 glioma cells. The rat astrocyte(More)
PURPOSE L-Type amino acid transporter 1 (LAT1) is highly expressed in cancer cells to support their continuous growth and proliferation. We have examined the effect of 2-aminobicyclo-(2,2,1)-heptane-2-carboxylic acid (BCH), an inhibitor of system L amino acid transporters, and the mechanism by which BCH suppresses cell growth in cancer cells. METHODS The(More)
This study was performed to elucidate the possible involvement of organic anion transporter 3 (OAT3) in cephaloridine (CER)-induced nephrotoxicity and compare the substrate specificity between rOAT3 and rat OAT1 (rOAT1) for various cephalosporin antibiotics, using proximal tubule cells stably expressing rOAT3 (S2 rOAT3) and rOAT1 (S2 rOAT1). S2 rOAT3(More)
In this study, we investigated the protective effects of rosmarinic acid (RA) on H(2)O(2)-induced neurotoxicity in human dopaminergic cell line, SH-SY5Y. Results showed that RA significantly attenuated H(2)O(2)-induced reactive oxygen species (ROS) generation and apoptotic cell death. Rosmarinic acid effectively suppressed the up-regulation of Bax and(More)
We identified a novel Na(+)-independent acidic amino acid transporter designated AGT1 (aspartate/glutamate transporter 1). AGT1 exhibits the highest sequence similarity (48% identity) to the Na(+)-independent small neutral amino acid transporter Asc (asc-type amino acid transporter)-2 a member of the heterodimeric amino acid transporter family presumed to(More)
The purpose of this article was to evaluate the radiologic findings of adult pelvis and appendicular skeletal Langerhans cell histiocytosis (LCH), emphasizing the CT and MR findings. The images of nine patients with pathologically proven LCH (five men and four women; mean age, 37.11 years) were retrospectively reviewed. Imaging analysis was confined to the(More)