• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Role of endoplasmic reticulum calcium channel on apoptosis following traumatic brain injury

Research Project

Project/Area Number 16K20393
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Emergency medicine
Research InstitutionYamaguchi University

Principal Investigator

TODANI Masaki  山口大学, 医学部附属病院, 助教 (00585721)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords頭部外傷 / アポトーシス / ネクローシス / 小胞体 / カルシウムイオンチャネル / カルシウムチャネルイオン / カルシウムチャネル / 脳・神経 / シグナル伝達
Outline of Final Research Achievements

The objectives of this study were to investigate the time-dependent modification of apoptosis following traumatic brain injury induced by lateral fluid percussion, and to evaluate the roles of endoplasmic reticulum calcium channel on apoptosis. The apoptotic cells were predominantly observed in corpus callosum on the side of cortex, with increasing number until 3 days after the impact followed by the stained cell elimination in accord with the collapse of apoptotic cells. Some inhibitors of calcium channels achieved the potential of apoptosis suppression at 3 days after impact, especially with intracerebroventricular administration of dantrolene, an inhibitor of ryanodine receptor, without synergistic effect with combination of other inositol 1, 4, 5-trisphosphate receptor inhibitors.

Academic Significance and Societal Importance of the Research Achievements

一度損傷された脳神経細胞は再生しないため、頭部外傷においては二次損傷を防ぐことが治療戦略として重要になる。今回の頭部外傷モデルでは神経細胞切断が脳梁と皮質の間で起こっておりびまん性軸索損傷を観察したと考えられる。この研究では、脳梁部を中心としたアポトーシスとネクローシスの時系列な変化を観察することが出来た。さらに、小胞体のカルシウムイオンチャネル阻害薬を用いることでアポトーシスを薬剤的に抑制する可能性を示すことが出来た。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi