| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
CD26 expression was correlated with cell proliferation, angiogenesis and cell differentiation in HCC specimens obtained from patients. DPP-4 inhibitor did not affect cell proliferation or cell cycle in vitro. However in nude mice, DPP-4 inhibitor significantly suppressed the growth of xenograft tumors in dose dependent manner. DPP-4 inhibitor also induced NK cells infiltrations more vigorously and reduced angiogenesis in xenograft tumors, even though body weight and dietary intake through the feeding period, and glucose tolerance determined at the 14th day of feeding were not different among three groups. These results suggested that DPP-4 inhibitor potentially have antitumor activity against HCC.
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