Elucidation of insulin secretory mechanisms through large scale generation of genetically-modified insulin secreting cells and omics analysis
Project/Area Number |
17K09850
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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 |
Metabolomics
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Research Institution | Nihon University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
藤城 緑 日本大学, 医学部, 助教 (50420211)
渡邉 健太郎 日本大学, 医学部, 准教授 (80373017)
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Project Period (FY) |
2017-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Keywords | 膵島 / インスリン / メタボローム / トランスクリプトーム / インスリン分泌 / 解糖系 / TCAサイクル / オミックス / 膵β細胞 / 遺伝子改変 |
Outline of Final Research Achievements |
In this project, we have studied mechanisms of impaired insulin secretion underlying diabetes pathogenesis. We have modulated expression of glucose-metabolizing enzymes in insulin secreting cells. In addition, since we have found that Tspan molecular family members are modulated in poorly responding insulin secreting cells, we studied Tspan proteins. We identified glucose-metabolizing enzymes and a member of the Tspan family plays important roles in insulin secretion.
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Academic Significance and Societal Importance of the Research Achievements |
本研究において、インスリン分泌β細胞において、ブドウ糖の代謝に障害を与えるとミトコンドリアでの代謝が低下し、インスリン分泌が低下するが、インスリン含有量はむしろ増加する可能性が示唆された。これらは、糖尿病初期に認められる現象と類似しており、そのメカニズムをさらに解析して介入できるようにすることは、糖尿病の発症予防に役立つ方策を考案する上で重要であると考えられた。一方、インスリン分泌の低下した細胞で変動したテトラスパニン分子の一部は、インスリン分泌障害の結果ではなく、原因になっている可能性が考えられ、今後の治療ターゲットとして有望であると考えられた。
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Report
(4 results)
Research Products
(13 results)
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[Journal Article] Two adult siblings with myotonic dystrophy type 1 with different phenotypes presenting with chronic respiratory insufficiency and sleep apnea syndrome2019
Author(s)
3.Kohno G, Ogawa K, Kushimoto M, Tanaka S, Ikeda J, Nishizawa T, Mitsuke K, Nakayama T, Suzuki Y, Ishihara H, Fujishiro M.
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Journal Title
Front Neurol
Volume: 10
Pages: 681-681
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Prolyl Isomerase Pin1 Suppresses Thermogenic Programs in Adipocytes by Promoting Degradation of Transcriptional Co-activator PRDM16.2019
Author(s)
Nakatsu Y, Matsunaga Y, Yamamotoya T, Ueda K, Inoue MK, Mizuno Y, Nakanishi M, Sano T, Yamawaki Y, Kushiyama A, Sakoda H, Fujishiro M, Ryo A, Ono H, Minamino T, Takahashi SI, Ohno H, Yoneda M, Takahashi K, Ishihara H, Katagiri H, Nishimura F, Kanematsu T, Yamada T, Asano T.
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Journal Title
Cell Rep.
Volume: 26
Issue: 12
Pages: 3221-3230
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Trk-fused gene (TFG) regulates pancreatic β cell mass and insulin secretory activity.2017
Author(s)
Yamamotoya T, Nakatsu Y, Kushiyama A, Matsunaga Y, Ueda K, Inoue Y, Inoue MK, Sakoda H, Fujishiro M, Ono H, Kiyonari H, Ishihara H, Asano T.
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Journal Title
Sci Rep.
Volume: 7
Issue: 1
Pages: 1-13
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] The prolyl isomerase Pin1 increases β-cell proliferation and enhances insulin secretion2017
Author(s)
Nakatsu Y, Mori K, Matsunaga Y, Yamamotoya T, Ueda K, Inoue Y, Mitsuzaki-Miyoshi K, Sakoda H, Fujishiro M, Yamaguchi S, Kushiyama A, Ono H, Ishihara H, Asano T.
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Journal Title
J Biol Chem.
Volume: 292
Issue: 28
Pages: 11886-11895
DOI
Related Report
Peer Reviewed / Open Access
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