Showing papers by "Jin-Soo Kim published in 2004"
TL;DR: It is demonstrated that ATF libraries can be used to induce phenotypic alterations in eukaryotic cells and then identify specific genes that are associated with the phenotype of choice.
Abstract: Phenotype-based functional genomic methods are useful for the identification of genes that are related to a particular biological function or disease. Essential to this approach is the ability to regulate the expression of selected genes. Artificial transcription factors (ATFs) are key molecular tools that selectively regulate gene expression in vivo. Here, we use an ATF library to identify genes that participate in rendering a cell resistant to the drug Taxol, a potent anti-cancer drug that binds to tubulin and inhibits cell division. The library, which encodes ATFs that activate (rather than inhibit) transcription, was introduced into a HeLa cell line, and Taxol-resistant cells were selected. After eight rounds of selection, we identified two ATFs that significantly increased the level of Taxol resistance (TR) in HeLa cells. Gene expression microarray experiments using these ATFs identified 37 co-regulated genes, including genes already known to participate in TR. This study demonstrates that ATF libraries can be used to induce phenotypic alterations in eukaryotic cells and then identify specific genes that are associated with the phenotype of choice.
19 citations
01 Jan 2004
TL;DR: This paper presents cnergy-aware demand paging, which can be used to mitigate the increasing requirement of main memory size and deliberately elaborated since NAND flash memory has asymmetric opcration characteristics in terms of performance and encrgy consumption.
Abstract: The ever-increasing requirement for high-performance and hnge-capacity memories of emerging embcddcd applications has led to the widespread adoption of SDRAM and NAND flash memory as main and secondary memories, respectively. In particular, the use of energy consuming memory, SDRAM, has become burdensome in battery-powered embedded systems. Intuitively, though demand paging can he used to mitigate the increasing requirement of main memory size, its applicability should bc deliberately elaborated since NAND flash memory has asymmetric opcration characteristics in terms of performance and encrgy consumption. In this paper, we present cnergy-aware demand paging