| Project/Area Number |
21580366
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Basic veterinary science/Basic zootechnical science
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| Research Institution | Kagoshima University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
OKA Tatsuzo 鹿児島大学, 農学部, 教授 (50116795)
KANOUCHI Hiroaki 鹿児島大学, 農学部, 准教授 (10351884)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| 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: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | VEGF / VEGF受容体 / NOS / 免疫組織化学 / 乳腺 / 新生仔消化管 / 分化増殖 / マウス / VEGFR1 / VEGFR2 / 十二指腸 / ネコ / 乳汁 / 消化管 |
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| Research Abstract |
The effects of VEGF and its receptors on the differentiation and proliferation of mammary gland and new born digestive tract were investigated by immunohistochemistry, histometry and biochemistry. In mouse mammary gland during reproductive cycle, VEGF and NOS(eNOS and bNOS) which generate a free radical gas, NO, expressed strongly in late pregnancy and early lactation. VEGFR-2, one of VEGF receptors, was localized to blood vessel endothelia. In feline mammary tumors, the expressions of VEGF and iNOS were positively correlated with tumor grades. On the other hands, in mouse digestive tract, VEGF was localized to absorptive and glandular epithelium, VEGFR-1 to striated border, VEGFR-2 to blood vessel epithelium. The expressions of these proteins became strongly in advance with dating. After administration of VEGF in the digestive tract, immunoreaction of VEGFR-1 was significantly decreased. Thus, it is suggested that these proteins mentioned above were intimately correlated with the differentiation and proliferation, and angiogenesis in mammary gland and new born digestive tract.
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