Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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Research Abstract |
We demonstrated that PI3K inhibitors including ZSTK474 did not induce apoptosis but G_0/G_1 arrest of cell cycle in cancer cell lines with PIK3CA/PTEN aberrations in vitro. In parallel, PI3K inhibitors exhibited their antitumor effect without inducing apoptosis in vivo. We examined gene expression changes after treatment of cancer cells with ZSTK474 by using GeneChip, and found induction of CDK inhibitor p15 and repression of CDC25A after ZSTK474 treatment. These changes would be involved in G_0/G_1 arrest of cell cycle.
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