Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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Research Abstract |
Expression of numerous genes is altered in drug-resistant tumor cells. MicroRNA is known as a regulating factor in the gene expression. The aim of this study was to clarify roles of micro RNA expression in drug-resistant leukemia cells, and its possible application in the diagnosis of resistance. When leukemia cells were transfected with FLT3-ITD, a major poor risk factor, specific resistance to ara-C was found. Altered pattern of micro RNA was demonstrated when analyzed by DNA microarray. This experimental system can be used as a model for diagnosis of drug resistance.
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