2008 Fiscal Year Final Research Report
Memory and transmission of genomic instability induced by ionizing
Project/Area Number |
18310040
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Risk sciences of radiation/Chemicals
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Research Institution | Osaka Prefecture University |
Principal Investigator |
KODAMA Seiji Osaka Prefecture University, 産学官連携機構, 教授 (00195744)
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Co-Investigator(Renkei-kenkyūsha) |
SHIRAISHI Kazunori 大阪府立大学, 産学官連携機構, 助教 (40347513)
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Project Period (FY) |
2006 – 2008
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Keywords | 放射線 / ゲノム不安定化 / 染色体異常 / 非標的影響 / 染色体移入 / 微小核融合法 / サブテロメア |
Research Abstract |
本研究は、放射線によるゲノム不安定化がいかにして子孫細胞に伝搬されるのかを明らかにするものである。放射線に被ばくしていないヒト染色体をマウス細胞に移入して得られた12種の細胞では、染色体構造異常頻度が10%を越える細胞は1つも無かった(0%)。一方、被ばくしたヒト染色体をマウス細胞に移入して得られた19種の細胞では、染色体構造異常が10%を越える細胞は8種(42%)みられた。また、予め再構成がある染色体は、被ばくすると不安定化しやすいことが分かった。以上の結果は、放射線により被ばく染色体に不安定化の原因が付与され、それ自身がゲノム不安定化を子孫細胞に伝搬すること、また、予め再構成が生じている染色体は被ばく後不安定化するポテンシャルが大きいことを示唆している。
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Research Products
(57 results)
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[Journal Article] Introduction of a normal human chromosome 8 corrects abnormal phenotypes of Werner syndrome cells immortalized by expressing an hTERT gene2009
Author(s)
Ariyoshi, K., Suzuki, K., Goto, M., Ishizaki, K., Watanabe, M., and Kodama, S.
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Journal Title
J. Radiat. Res (in press)
Peer Reviewed
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[Journal Article] p^<53> status-dependent sensitization of human tumor cells to hyperthermia by plant flavonol2008
Author(s)
Hamamoto, T., Suzuki, K., Yamauchi, M., Kodama, S., Sasaki, H., and Watanabe, M.
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Journal Title
Int. J. Hyperthermia 24
Pages: 415-424
Peer Reviewed
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[Journal Article] Growth of persistent foci of DNA damage checkpoint factors is essential for amplification of G1 checkpoint signaling2008
Author(s)
Yamauchi, M., Oka, Y., Yamamoto, M., Niimura, K., Uchida, M., Kodama, S., Watanabe, M., Sekine, I., Yamashita, S., and Suzuki, K.
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Journal Title
DNA Repair 7
Pages: 405-417
Peer Reviewed
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[Journal Article] Different involvement of radical species in irradiated and bystander cells2008
Author(s)
Harada, T., Kashino, G., Suzuki, K., Matsuda, N., Kodama, S. and Watanabe, M.
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Journal Title
Int. J. Radiat. Biol 84
Pages: 809-814
Peer Reviewed
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[Journal Article] Effective suppression of bystander effects by DMSO treatment of irradiated CHO cells2007
Author(s)
Kashino, G., Prise, K. M., Suzuki, K., Matsuda, N., Kodama, S., Suzuki, M., Nagata, K., Kinashi, Y., Masunaga, S., Ono, K., and Watanabe, M.
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Journal Title
J. Radiat. Res 48
Pages: 327-333
Peer Reviewed
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[Journal Article] Radiation induced bystander signals are independent of DNA damage and DNA repair capacity of the irradiated cells2007
Author(s)
Kashino, G., Suzuki, K., Matsuda, N., Kodama, S., Ono, K., Watanabe, M., and Prise, K. M.
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Journal Title
Mutat. Res 619
Pages: 134-138
Peer Reviewed
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[Journal Article] Early response of neural stem/progenitor cells after X-ray irradiation in vitro2007
Author(s)
Kato, T., Kanemura, Y., Shiraishi, K., Miyake, J., Kodama, S., and Hara, M.
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Journal Title
Neurorep 18
Pages: 895-900
Peer Reviewed
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[Journal Article] The chromosome network for biodosimetry in Japan2007
Author(s)
Yoshida, M. A., Hayata, I., Tateno, H., Tanaka, K., Sonta, S., Kodama, S., Kodama, Y., and Sasaki, M. S.
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Journal Title
Radiat. Measure 42
Pages: 1125-1127
Peer Reviewed
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[Journal Article] Correlation of malignant phenotypes of human tumour cell lines with augmented expression of Hsp72 protein measured by laser scanning cytometry2007
Author(s)
Hamamoto, T., Suzuki, K., Kodama, S., Sasaki, H., Abe, K., Hayashi, T., Watanabe, M.
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Journal Title
Int. J. Hyperthermia 23
Pages: 367-370
Peer Reviewed
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[Journal Article] Qualitative and quantitative analysis of phosphorylated ATM foci induced by low-dose ionizing radiation2006
Author(s)
Suzuki, K., Okada, H., Yamauchi, M., Oka, Y., Kodama, S., and Watanabe, M.
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Journal Title
Radiat. Res 165
Pages: 499-504
Peer Reviewed
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[Journal Article] Histone H2AX phosphorylation in normal human cells irradiated with focused ultrasoft X-rays : evidence for chromatin movement during repair2006
Author(s)
Hamada, N., Shettino, G., Kashino, G., Valid, M., Suzuki, K., Kodama, S., Vojnovic, B., Folkard, M., Watanabe, M.
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Journal Title
Radiat. Res 166
Pages: 31-38
Peer Reviewed
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[Journal Article] Non-specific detection of the centrosomes by antibodies recognizing phosphorylated ATM at serine 19812006
Author(s)
Suzuki, K., Morimoto, M., Yamauchi, M., Yoshida, H., Kodama, S., Tsukamoto, K., and Watanabe, M.
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Journal Title
Cell Cycle 5
Pages: 1008-1009
Peer Reviewed
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[Presentation] Network for cytogenetic biodosimetry in Japan2007
Author(s)
Japan, Mitsuaki A. Yoshida, Isamu Hayata, Hiroyuki Tateno, Kimio Tanaka, Shunichi Sonta, Seiji Kodama, Yoshiaki Kodama, and Masao S. Sasaki
Organizer
13th International Congress of Radiation Research
Place of Presentation
San Francisco
Year and Date
20070708-12
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[Presentation] Growth of IR-induced foci and G1 checkpoint2006
Author(s)
Motohiro Yamauchi, Keiji Suzuki, Seiji Kodama, Masami Watanabe
Organizer
The Second Nagasaki Symposium of International Consortium for Medical Care of Hibakusha and Radiation Life Science
Place of Presentation
Nagasaki
Year and Date
20060726-28
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