2013 Fiscal Year Final Research Report
Mechanism of carcinogenesis by dysregulation of cell cycle via abnormal ubiquitin-mediated proteolysis
Project/Area Number |
23689074
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Single-year Grants |
Research Field |
Morphological basic dentistry
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Research Institution | The University of Tokushima (2012-2013) Hiroshima University (2011) |
Principal Investigator |
KUDO Yasusei 徳島大学, ヘルスバイオサイエンス研究部, 准教授 (50314753)
|
Project Period (FY) |
2011-04-01 – 2014-03-31
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Keywords | 細胞周期 / ユビキチン分解 / 癌 |
Research Abstract |
In the present study, we focused on the APC/C ubiquitin ligase complex that is involved in the degradation of cell division-related proteins. We found that the speed of ubiquitylation process is dependent on the sequence of degradation domain. Moreover, we found that one of the APC/C substrate, geminin is phosphorylated at mitosis, and this phosphorylation leads to DNA synthesis by preventing from APC/C-mediated proteolysis at mitosis. We also found that knockdown of Emi1 which is an APC/C inhibitor enhances the sensitivity of anti-cancer drug. These findings indicate that ubiquitin-mediated proteolysis via APC/C ubiquitin ligase is essential to cell cycle regulation and suggest that abnormal regulation of APC/C-mediated proteolysis may be involved in carcinogenesis.
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Research Products
(18 results)
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[Journal Article] Aurora-A controls pre-replicative complex formation and DNA replication by promoting the stabilization of geminin and Cdt1 in mitosis2013
Author(s)
Tsunematsu, T., Takihara, Y., Ishimaru, N., Pagano, M., Takata, T., Kudo, Y.
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Journal Title
Nat Commun
Volume: 4
Pages: 1885
DOI
Peer Reviewed
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[Journal Article] Selective enhancing effect of Early mitotic inhibitor 1 depletion on the sensitivity of doxorubicin or X-ray treatment in human cancer cells2013
Author(s)
Shimizu, N., Nakajima, N.I., Tsunematsu, T., Ogawa, I., Kawai, H., Hirayama, R., Fujimori, A., Okayasu, R., Ishimaru, N., Takata, T., Kudo, Y.
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Journal Title
J Biol Chem
Volume: 288
Pages: 17238-17252
Peer Reviewed
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[Journal Article] The Cyclin F-Ribonucleotide Reductase M2 axis controls genome integrity and DNA repair2012
Author(s)
D'Angiolella, V., Donate, V., Forrester, F. M., Jeong, Y. T., Pellacani, C., Kudo, Y., Saraf, A., Florens, L., Washburn, M. P., Pagano, M.
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Journal Title
Cell
Volume: 149
Pages: 1023-1034
Peer Reviewed
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[Journal Article] Overexpression of Receptor for Hyaluronan-Mediated Motility (RHAMM) in MC3T3-E1 induces the proliferation and differentiation through phosphorypation of ERK1/22012
Author(s)
Hatano, H., Shigeishi, H., Kudo, Y., Higashikawa, K., Tobiume, K., Takata, T., Kamata, N.
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Journal Title
J Bone Miner Metabol
Volume: 30(3)
Pages: 293-303
Peer Reviewed
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[Journal Article] MMP-10/stromelysin-2 promotes invasion of head and neck cancer2011
Author(s)
Deraz, E.M., Kudo, Y., Yoshida, M., Tani, H., Tsunematsu, T., Siriwardena, B.S.M.S., Kiekhaee, M.R., Qi, G., Iizuka, S., Ogawa, I., Campisi, G., Lo Muzio, L., Abiko, Y., Kikuchi, A., Takata, T.
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Journal Title
PLoS ONE
Volume: 6(10)
Pages: e25438
Peer Reviewed
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[Journal Article] SCF^<ßTrcp>mediates stress-induced Cdc25B ubiquitylation through cooperation of an atypical consensus sequence and PEST2011
Author(s)
Uchida, S., Watanabe, N., Kudo, Y., Yoshioka, K., Matsunaga, T., Ishizuka, Y., Nakagama, H., Poon, R.Y.C., Yamashita, K.
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Journal Title
J Cell Sci
Volume: 124
Pages: 2816-25
Peer Reviewed
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[Journal Article] miR-22 represses cancer progression by inducing celular senescence2011
Author(s)
Xu, D., Takeshita, F., Hino, Y., Fukunaga, S., Kudo, Y., Tamaki, A., Takata, T., Shimamoto, A., Ochiya, T., Tahara, H.
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Journal Title
J Cell Biol
Volume: 193(2)
Pages: 409-24
Peer Reviewed
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