| Project/Area Number |
26460274
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
General anatomy (including histology/embryology)
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| Research Institution | Nara Medical University (2016)
Kyoto University (2014-2015) |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
李 頴 京都大学, 医学研究科, 特定研究員 (30437222)
小沢 将太 京都大学, 医学研究科, 研究員 (70643568)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 腎臓病 / ポドサイト / ミトコンドリア / 解糖系 / 未分化ポドサイト / ATP / 足突起 / ＡＴＰ / 細胞内分布 / アクチン |
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| Outline of Final Research Achievements |
Differentiated podocytes maintain glomerular physiology and require substantial levels of energy. Mitochondria and glycolysis are two major producers of ATP, but the precise roles of each in podocytes remain unknown. Mitochondria in differentiated podocytes are present in the central part of cell body. However, blocking mitochondria had minor effects on cell shape and migratory ability. In contrast, blocking glycolysis significantly reduced the formation of lamellipodia, a cortical area of these cells, and decreased cell migratory ability. Intracellular ATP distribution in lamellipodia was regulated only by glycolysis. Inhibiting glycolysis resulted in apoptosis, prevented differentiation, and impaired lamellipodia formation while inhibition of mitochondria reduced synaptopodin expression. These data suggest that mitochondria and glycolysis play parallel but distinct roles in differentiated and differentiating podocytes.
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