2010 Fiscal Year Final Research Report
Study on the radiation/heat/anti-cancer drag sensitivity enhanced by siRNA in mutated-p53 cancer cells
Project/Area Number |
20591502
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Radiation science
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Research Institution | Nara Medical University |
Principal Investigator |
OHNISHI Ken Nara Medical University, 保健医療学部, 教授 (50152195)
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Co-Investigator(Kenkyū-buntansha) |
HATANO Osamu (40164850)
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Project Period (FY) |
2008 – 2010
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Keywords | p53 / 増感 / RNA干渉 / siRNA / シグナル伝達因子 / AKT |
Research Abstract |
The aim of this study is to examine the mechanism that contributes to radio-sensitization by NBS1-siRNA or XIAP-siRNA observed more effectively in human lung cancer cells having mutated p53 than in those having wild-type p53. This study showed that (1) p53 associates with AKT intracellularly and (2) AKT inhibitors (Wortmannin, LY294002) enhances radio-sensitivity in both of wild-type p53 and mutated p53 cells. From these results it was suggested that the association between p53 and AKT is a cause of the predominant radio-sensitization observed mutated p53 cells.
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Research Products
(62 results)
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[Journal Article] Repair pathways independent of the Fanconi anemia nuclear core complex play a predominant role in mitigating formaldehyde-induced DNA damage.2011
Author(s)
Noda T, Takahashi A, Kondo N, Mori E, Okamoto N, Nakagawa Y, Ohnishi K, Zdzienicka, MZ, Thompson LH, Helleday T, Asada H, Ohnishi T.
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Journal Title
Biochemical and Biophysical Research Communications 404
Pages: 206-210
Peer Reviewed
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[Journal Article] DNA ligase IV is a potential molecular target in ACNU sensitivity.2010
Author(s)
Kondo N, Takahashi A, Mori E, Noda T, Su X, Ohnishi K, McKinnon P, Sakaki T, Nakase H, Ono K, Ohnishi T.
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Journal Title
Cancer Sci. 101
Pages: 1881-1885
Peer Reviewed
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[Journal Article] ATM is the predominant kinase involved in the phosphorylation of histone H2AX after heating.2010
Author(s)
Takahashi A, Mori E, Su X, Nakagawa Y, Okamoto N, Uemura H, Kondo N, Noda T, Toki A, Ejima Y, Chen JD, Ohnishi K, Ohnishi T.
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Journal Title
J Radiat Res (Tokyo). 51
Pages: 417-422
Peer Reviewed
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[Journal Article] Usefulness of hexamethylenetetramine as an adjuvant to radiation and cisplatin in the treatment of solid tumors : its independency of p53 status.2010
Author(s)
Masunaga S, Tano K, Nakamura J, Watanabe M, Kashino G, Takahashi A, Tanaka H, Suzuki M, Ohnishi K, Kinashi Y, Liu Y, Ohnishi T, Ono K.
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Journal Title
J Radiat Res 51
Pages: 27-35
Peer Reviewed
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[Journal Article] Downregulation of SIK2 expression promotes the melanogenic program in mice.2010
Author(s)
Horike N, Kumagai A, Shimono Y, Onishi T, Itoh Y, Sasaki T, Kitagawa K, Hatano O, Takagi H, Susumu T, Teraoka H, Kusano KI, Nagaoka Y, Kawahara H, Takemori H.
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Journal Title
Pigment Cell Melanoma Res 23
Pages: 809-819
Peer Reviewed
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[Journal Article] SIK2 is a new key regulator for neuronal survival after ischemia via TORC1-CREB.2010
Author(s)
Sasaki T, Takemori H, Yagita Y, Terasaki Y, Uebi T, Horike N, Takagi H, Susumu T, Teraoka H, Kusano K, Hatano O, Oyama N, Sugiyama Y, Sakoda S, Kitagawa K.
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Journal Title
Peer Reviewed
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[Journal Article] Time course and spacial distribution of UV effects on human skin in organ culture2008
Author(s)
Mori E, Takahashi A, Kitagawa K, Kakei S, Tsujinaka D, Unno M, Nishikawa S, Ohnishi K, Hatoko M, Murata N, Watanabe M, Furusawa Y, Ohnishi T
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Journal Title
J Radiat Res 49
Pages: 269-277
Peer Reviewed
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[Journal Article] siRNA Targeted for NBS1 enhances heat sensitivity in human anaplastic thyroid carcinoma cells.
Author(s)
Okamoto N, Takahaski A, Ota I, Ohnishi K, Mori E, Kondo N, Noda T, Nakagawa Y, Uemura H, Yane K, Hosoi H, Ohnishi T.
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Journal Title
International Journal of Hyperthermia in press
Peer Reviewed
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