| Project/Area Number |
13671475
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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 |
Cerebral neurosurgery
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| Research Institution | Kansai Medical University |
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Principal Investigator |
KAWAMOTO Keiji Kansai Medical University, Faculty of Medicine, Professor, 医学部, 教授 (70077741)
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| Co-Investigator(Kenkyū-buntansha) |
KASAI Harubumi Kansai Medical University, Faculty of Medicine, Assistant, 医学部, 助手 (80268341)
NUMA Yoshihiro Kansai Medical University, Faculty of Medicine, Assistant Professor, 医学部, 講師 (40208278)
TSUCHIDA Takahiro Kansai Medical University, Faculty of Medicine, Assistant Professor, 医学部, 講師 (10181249)
SUGAWA Noriaki Kansai Medical University, Faculty of Medicine, Assistant, 医学部, 助手 (50244596)
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| Project Period (FY) |
2001 – 2002
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| Project Status |
Completed (Fiscal Year 2002)
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| Budget Amount *help |
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2002: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2001: ¥2,200,000 (Direct Cost: ¥2,200,000)
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| Keywords | glioma / p130 / transfection / cyclin B1 / cyclin D1 / cyclinB1 / cyclinD1 |
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| Research Abstract |
I. Analysis of cell cycle and cyclin with use of FCM
Three kinds of glioma cell lines were analyzed the cell cycle and expression of cyclins from the DNA histogram stained with FTTC laelled cyclin A, B1, D1, E and propidium iode. These cell lines experssed all of cyclin A, B1, D1. Cyclin B1 was prooved to be expressed on the S, G2, M phases and cyclin D1 was expressed on the phase of G0, G1 phases.
II. Analysis of cell cycle and cyclin with use of LSC
Same results were obtained by LSC as well as FCM.
III. Effect of As2O3 on cell cycle progression and cyclin expression in glioblastoma cell lines
As2O3 induced an increase in p53 level and a decrease in level of cyclin B1, combined with cell arrest at G2/M in cell lines. Cell arrest in G1, however, was associated with a decline in cyclin D1 expression in the U87 MG cells.
IV. Rb2/p130 expression on the surgical specimen of gliomas
Benign gliomas grade I and II were expressed strongly, but malignant glioma grade IV showed negative stain. On the other hand, p53 showed high positive rates in the cases of grade IV.
V. Functional analysis of p130 induced glioma
p130 cDNA induced subclone to BCMGSneo and this p130 was transfected into U87 MG with use of Lipofact AMINE. After transfected cells were sellected by G418, U87 MG expressed of p130 oncogene was success to be produced. Plasmid from the oncogene of p130 was obtained over 6 months and p130 was possible to be transofected into U87MG cell line. We are planning now how to controll the proliferation of malignant gloma, especially mutant glioma (N-319) or express of the cyclins.
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