Mechanism of neuronal cell death in GM2 gangliosidosis
Project/Area Number |
25460389
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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 |
Research Field |
Pathological medical chemistry
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Research Institution | The University of Tokushima |
Principal Investigator |
TSUJI Daisuke 徳島大学, 大学院医歯薬学研究部, 助教 (00423400)
|
Co-Investigator(Kenkyū-buntansha) |
ITOH Kohji 徳島大学, 大学院医歯薬学研究部, 教授 (00184656)
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Co-Investigator(Renkei-kenkyūsha) |
URANO Yasuteru 東京大学, 大学院医学系研究科, 教授 (20292956)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
|
Keywords | リソソーム / オートファジー / 糖脂質 / リソソーム病 / iPS細胞 / GM2ガングリオシドーシス / TFEB / ガングリオシド / リソソーム酵素 / 先天代謝異常症 |
Outline of Final Research Achievements |
GM2 gangliosidoses are lysosomal β-hexosaminidase (Hex) deficiency involving excessive accumulation of undegraded substrates, including GM2 ganglioside, and progressive neurodegeneration. In this study, we generated iPS cell from Tay-Sachs disease (TSD) patient fibroblast, and demonstrated the abnormalities of signaling in TSD neurons. We found differences in PI3K and autophagy signaling in GM2 gangliosidosis model when compared to normal control. In addition, we observed activation of TFEB in lysosomal storage disorders model mice with neuronal manifestations. These results suggest that mTORC1 inactivation and the increase of autophagy were dependent on down-regulation of PI3K signaling. Furthermore, replacement of Hex rescued abnormal signaling in GM2 gangliosidosis models. These findings may represent a mechanism in linking cell death observed in GM2 gangliosidosis neurons.
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Report
(4 results)
Research Products
(24 results)
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[Journal Article] Protease-resistant modified human β-hexosaminidase B ameliorates symptoms in GM2 gangliosidosis model.2016
Author(s)
Kitakaze K, Mizutani Y, Sugiyama E, Tasaki C, Tsuji D, Maita N, Hirokawa T, Asanuma D, Kamiya M, Sato K, Setou M, Urano Y, Togawa T, Otaka A, Sakuraba H, Itoh K
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Journal Title
J Clin Invest
Volume: in press
Issue: 5
Pages: 1691-1703
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Effective impairment of myeloma cells and their progenitors by blockade of monocarboxylate transportation2015
Author(s)
6. Hanson DJ, Nakamura S, Amachi R, Hiasa M, Oda A, Tsuji D, Itoh K, Harada T, Horikawa K, Teramachi J, Miki H, Matsumoto T, Abe M.
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Journal Title
Oncotarget
Volume: 6
Issue: 32
Pages: 33568-33586
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Pim-2 kinase is an important target of treatment for tumor progression and bone loss in myeloma.2015
Author(s)
Hiasa M, Teramachi J, Oda A, Amachi R, Harada T, Nakamura S, Miki H, Fujii S, Kagawa K, Watanabe K, Endo I, Kuroda Y, Yoneda T, Tsuji D et al.
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Journal Title
Leukemia
Volume: 29
Issue: 1
Pages: 207-217
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] In vivo crystallography at X-ray free-electron lasers: the next generation of structural biology?2014
Author(s)
Gallat Francois-Xavier, N. Matsugaki, P. Coussens Nathan, Yagi J. K., Boudes M., T. Higashi, Daisuke Tsuji, Tatano Yutaka, M. Suzuki, E. Mizohata, K. Tono, Y. Hatui, M. Yabashi, E. Nango, K.Itou, Coulibaly Fasseli, Tobe Stephen, Ramaswamy S., S. Iwata and Chavas M. L.
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Journal Title
The Royal Society
Volume: 369
Issue: 1647
Pages: 20130497-20130497
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Combination with a defucosylated anti-HM1.24 monoclonal antibody plus lenalidomide induces marked ADCC against myeloma cells and their progenitors2013
Author(s)
T. Harada, S. Ozaki, A. Oda, D. Tsuji, A. Ikegame, M. Iwasa, K. Udaka, S. Fujii, S. Nakamura, H. Miki, K. Kagawa, Y. Kuroda, S. Kawai, K. Itoh, H. Yamada-Okabe, T. Matsumoto, M. Abe
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Journal Title
PLoS One
Volume: vol.26; 8(12)
Issue: 12
Pages: e83905-e83905
DOI
Related Report
Peer Reviewed
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[Presentation] リソソーム病におけるオートリソソームの形成異常2015
Author(s)
辻 大輔, 本窪田 絢加, 北風 圭介, 山口 沙恵香, 田崎 智佳子, 伊藤 孝司
Organizer
BMB2015 第38回日本分子生物学会年会・第88回日本生化学会大会 合同大会
Place of Presentation
神戸ポートアイランド(兵庫県 神戸市)
Year and Date
2015-12-01
Related Report
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[Presentation] Gaucher disease caused by possible atypical mechanism2015
Author(s)
Keiko Miyoshi, Taigo Horiguchi, Ayako Tanimura, Hagita Hiroko, Yoshihiro Touda, Shoji Kagami, Kenji Mori, Daisuke Tsuji, Kohji Itoh, Takafumi Noma
Organizer
Gordon Research Conference
Place of Presentation
Hotel Galvez (USA, Texas, Galveston)
Year and Date
2015-03-15 – 2015-03-20
Related Report
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