Elucidation of cellular stress regulation through phospho-signals linking in and out of mitochondria
Project/Area Number |
20K07032
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 47030:Pharmaceutical hygiene and biochemistry-related
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Research Institution | Nagasaki University |
Principal Investigator |
Takeda Kohsuke 長崎大学, 医歯薬学総合研究科(薬学系), 教授 (10313230)
|
Co-Investigator(Kenkyū-buntansha) |
谷村 進 長崎大学, 医歯薬学総合研究科(薬学系), 准教授 (90343342)
|
Project Period (FY) |
2020-04-01 – 2023-03-31
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Project Status |
Completed (Fiscal Year 2022)
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Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
|
Keywords | ミトコンドリア / ストレス応答 / タンパク質リン酸化 / プロテインホスファターゼ / シグナル伝達 / リン酸化 |
Outline of Research at the Start |
細胞傷害性ストレスにさらされた細胞では、ミトコンドリアはATP産生によって細胞の生存を支える通常の機能を失い、逆に細胞死へのシグナルを積極的に発信する。よって、ミトコンドリアの機能低下の程度を的確に感知し、それに見合った適切な情報をミトコンドリア内外の分子や他の細胞小器官に伝える必要がある。我々は、その機構を担う分子としてミトコンドリア局在プロテインホスファターゼPGAM5に着目し、ミトコンドリアのストレス感知機構、ミトコンドリア内外をつなぐタンパク質リン酸化によるシグナル伝達機構、さらにはそれらをベースとした細胞の新たなストレス応答制御機構の解明を目指す。
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Outline of Final Research Achievements |
Mitochondria are vulnerable to various cytotoxic stressors and easily lose their functions. To maintain normal cellular functions even under such conditions, it is crucial that cells equip mechanisms inducing appropriate overall cellular response to mitochondrial dysfunctions. In this research, we have found that PGAM5, a protein phosphatase that exists in mitochondria, escapes from mitochondria upon their damages. We have further shown that a fraction of PGAM5 escaped from mitochondria translocates to the nucleus where PGAM5 regulates various molecules regulating RNA metabolism through direct dephosphorylation.
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Academic Significance and Societal Importance of the Research Achievements |
細胞傷害性ストレスにさらされた細胞では、ミトコンドリアはATP産生によって細胞の生存を支える通常の機能を失い、逆に細胞死へのシグナルを積極的に発信する。そのため、ミトコンドリアの機能低下の程度を的確に感知し、それに見合った適切な情報をミトコンドリア内外の分子や他のオルガネラに伝える必要がある。その機構の一端を明らかにした本研究の成果は、ミトコンドリアの機能不全に起因する様々の疾患の発症メカニズムや病態の理解につながるものと期待される。
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Report
(4 results)
Research Products
(36 results)
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[Journal Article] Marine-derived microbes and molecules for drug discovery.2022
Author(s)
Tanaka, Y., Nishikawa, M., Kamisaki, K., Hachiya, S., Nakamura, M., Kuwazuru, K., Tanimura, S., Soyano, K. and Takeda, K.
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Journal Title
Inflamm. Regener.
Volume: 42
Issue: 1
Pages: 18-18
DOI
Related Report
Peer Reviewed
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[Journal Article] ERAD components Derlin-1 and Derlin-2 are essential for postnatal brain development and motor function2021
Author(s)
Sugiyama T, Murao N, Kadowaki H, Takao K, Miyakawa T, Matsushita Y, Katagiri T, Futatsugi A, Shinmyo Y, Kawasaki H, Sakai J, Shiomi K, Nakazato M, Takeda K, Mikoshiba K, Ploegh HL, Ichijo H, Nishitoh H
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Journal Title
iScience
Volume: 24
Issue: 7
Pages: 102758-102758
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Cleaved PGAM5 dephosphorylates nuclear serine/arginine-rich proteins during mitophagy.2021
Author(s)
Baba, T., Tanimura, S., Yamaguchi, A., Horikawa, K., Yokozeki, M., Hachiya, S., Iemura, S., Natsume, T., Matsuda, N. and Takeda, K.
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Journal Title
Biochimica et Biophysica Acta (BBA) - Molecular Cell Research
Volume: 11868
Issue: 7
Pages: 119045-119045
DOI
Related Report
Peer Reviewed
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[Journal Article] ATP exposure stimulates glutathione efflux as a necessary switch for NLRP3 inflammasome activation.2021
Author(s)
Zhang, T., Tsutsuki, H., Islam, W., Ono, K., Takeda, K., Akaike, T. and Sawa, T.
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Journal Title
Redox Biology
Volume: 41
Pages: 101930-101930
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] ASK1 suppresses NK cell-mediated intravascular tumor cell clearance in lung metastasis.2021
Author(s)
Fujimoto, M., Kamiyama, M., Fuse, K., Ryuno, H., Odawara, T., Furukawa, N., Yoshimatsu, Y., Watabe, T., Michaela, P.-M., Veronika, S., Tahara, H., Hayakawa, Y., Sato, T., Takeda, K., Naguro, I. and Ichijo, H.
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Journal Title
Cancer Science
Volume: 112
Issue: 4
Pages: 1633-1643
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] SH3P2 suppresses osteoclast differentiation through restricting membrane localization of myosin 1E.2020
Author(s)
Nakamura, S., Masuyama, R., Sakai, K., Fukuda, K., Takeda, K. and Tanimura, S.
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Journal Title
Genes Cells
Volume: 25
Issue: 11
Pages: 707-717
DOI
Related Report
Peer Reviewed
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[Journal Article] Design and Synthesis of a Class of Compounds That Inhibit the Growth of Fungi Which Cause Invasive Infections2020
Author(s)
Nana Nakada-Motokawa, Taiga Miyazaki, Satoshi Mizuta, Yoshimasa Tanaka, Tatsuro Hirayama, Takahiro Takazono, Tomomi Saijo, Kazuko Yamamoto, Yoshifumi Imamura, Koichi Izumikawa, Katsunori Yanagihara, Koichi Makimura, Kohsuke Takeda, Shigeru Kohno, and Hiroshi Mukae
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Journal Title
ChemistrySelect
Volume: -
Issue: 3
Pages: 1140-1145
DOI
Related Report
Peer Reviewed / Open Access
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