| Project/Area Number |
25462924
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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 |
Pathobiological dentistry/Dental radiology
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| Research Institution | Nagasaki University |
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Principal Investigator |
EIDA Sato 長崎大学, 医歯薬学総合研究科(歯学系), 助教 (80325662)
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| Co-Investigator(Kenkyū-buntansha) |
HOTOKEZAKA Yuka 長崎大学, 病院(歯学系), 講師 (10244089)
KATAYAMA Ikuo 長崎大学, 医歯薬学総合研究科(歯学系), 助教 (80295089)
SASAKI Miho 長崎大学, 病院(歯学系), 助教 (10437874)
NAKAMURA Takashi 長崎大学, 医歯薬学総合研究科(歯学系), 教授 (30172406)
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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 |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 細胞膜 / 糖蛋白 / ADC / 糖タンパク / SDL仮説 / 拡散係数 |
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| Outline of Final Research Achievements |
Using an in vitro system and a high-resolution MR imaging technique, we show that the length of the intact plasma membrane is a major determinant of water diffusion in a controlled cellular environment and that the cell perimeter length (CPL) is sufficient to estimate the apparent diffusion coefficient (ADC) of water in any cellular environment in our experimental system (ADC=-0.21 × CPL + 1.10). We used this finding to further explain the different diffusion kinetics of cells that are dying via apoptotic or necrotic cell death pathways exhibiting characteristic changes in size, nuclear and cytoplasmic architectures, and membrane integrity. These results suggest that the ADC value can be used as a potential biomarker for cell death.
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