Development of neurovascular unit protection therapy for cerebral ischemia-reperfusion injury by redox nanopartices
Project/Area Number |
17K10819
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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 |
Neurosurgery
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Research Institution | University of Tsukuba |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
プエンテス サンドラ 筑波大学, システム情報系, 助教 (00725765)
平山 暁 筑波技術大学, 保健科学部, 教授 (20323298)
鈴木 謙介 獨協医科大学, 医学部, 教授 (20400674)
鶴嶋 英夫 筑波大学, 医学医療系, 准教授 (50315470)
滝川 知司 獨協医科大学, 医学部, 准教授 (60450227)
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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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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Keywords | 脳梗塞 / 脳虚血再灌流障害 / 脳保護療法 / 活性酸素 / ナノ粒子 / フリーラジカル / 脳保護 / RNP / 血栓回収療法 / 神経血管ユニット保護 / 血液脳関門 / ナノ粒子化活性酸素消去剤 / 脳神経外科学 / 脳血管障害学 |
Outline of Final Research Achievements |
In order to suppress intracranial hemorrhage and enlargement of infarct lesion due to cerebral ischemia-reperfusion injury in cerebral infarction, we conducted research and development of a novel cerebral protective therapy using nanoparticulate active oxygen scavenger (RNP). When the optimal dose of RNP was evaluated, 9 mg / kg (7 μM) had the highest survival rate, reduced cerebral infarction volume, and improved neurological symptoms. In the evaluation of the distribution of RNP in the brain, RNP was distributed in cerebral vascular endothelium and neuronal cells in the penumbra region. In a trial comparing with Edaravone, RNP significantly improved the survival rate and neurological symptoms in mice. RNP is considered as a novel neuroprotective drug that can control cerebral ischemia-reperfusion injury, and its mechanism of action is considered to be a drug with a unique mechanism.
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Academic Significance and Societal Importance of the Research Achievements |
脳主幹動脈閉塞による重症脳梗塞は、t-PAや血栓回収療法を行っても、依然として転帰不良は50%以上認めている。その一因は再開通後の脳虚血再灌流障害による脳梗塞拡大、脳浮腫、頭蓋内出血である。RNPを血栓回収療法時にマイクロカテーテルから脳虚血部位に直接投与する脳保護療法は、脳虚血再灌流障害を抑制できる、新たな脳保護領として期待できる。本研究課題では、マウス脳虚血再灌流障害モデルによる、RNPによる脳保護療法の有効性とその機序を秋からにすることができた。当脳保護療法を実用化が期待される成果であり、今後、RNPの有効性をヒトへ外挿するために大型動物モデルを用いたさらなる研究が期待される。
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Report
(4 results)
Research Products
(29 results)
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[Journal Article] Effects of Gait Treatment With a Single-Leg Hybrid Assistive Limb System After Acute Stroke: A Non-randomized Clinical Trial2020
Author(s)
Watanabe H, Marushima A, Kadone H, Ueno T, Shimizu Y, Kubota S, Hino T, Sato M, Ito Y, Hayakawa M, Tsurushima H, Takada T, Tsukada A, Fujimori H, Sato N, Maruo K, Kawamoto H, Hada Y, Yamazaki M, Sankai Y, Ishikawa E, Matsumaru Y, Matsumura A
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Journal Title
Frontiers in Neuroscience
Volume: 13
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] The visualization methods of occluded dural sinus for safe transvenous embolization of dural AVFs2019
Author(s)
Hosoo H, Tsuruta W, Nakai Y, Shiigai M, Sato M, Ito Y, Takigawa T, Marushima A, Ishikawa E, Yamamoto T, Matsumaru Y, Matsumura A.
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Journal Title
World Neurosurgery
Volume: 印刷中
Pages: e337-e345
DOI
Related Report
Peer Reviewed
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[Journal Article] 症例 鼻出血で発症した海綿静脈洞部内頚動脈解離性動脈瘤の1例2018
Author(s)
Kino H, Tsuruta W, Ito Y, Takigawa T, Shiigai M, Marushima A, Nakai Y, Yamamoto T, Matsumura A
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Journal Title
Neurological Surgery 脳神経外科
Volume: 46
Issue: 9
Pages: 789-795
DOI
ISSN
0301-2603, 1882-1251
Year and Date
2018-09-10
Related Report
Peer Reviewed
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[Journal Article] Neurovascular Unit Protection From Cerebral Ischemia-Reperfusion Injury by Radical-Containing Nanoparticles in Mice2017
Author(s)
Hosoo H, Marushima A, Nagasaki Y, Hirayama A, Ito H, Puentes S, Mujagic A, Tsurushima H, Tsuruta W, Suzuki K, Matsui H, Matsumaru Y, Yamamoto T, Matsumura
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Journal Title
Stroke
Volume: 48
Issue: 8
Pages: 2238-2247
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Intensive Gait Treatment Using a Robot Suit Hybrid Assistive Limb in Acute Spinal Cord Infarction: Report of Two Cases2017
Author(s)
Watanabe H, Marushima A, Kawamoto H, Kadone H, Ueno T, Shimizu Y, Endo A, Hada Y, Saotome K, Abe T, Yamazaki M, Sankai Y, Ishikawa E, Matsumura A
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Journal Title
J Spinal Cord Med
Volume: 9
Issue: 3
Pages: 1-7
DOI
Related Report
Peer Reviewed
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[Presentation] Neurovascular Unit Protection Using Nitroxide Radicals-containing Nanoparticles (TEMPO-RNP) for Cerebral Ischemia-reperfusion Injury in Mice2018
Author(s)
Hisayuki Hosoo, Aiki Marushima, Yukio Nagasaki, Aki Hirayama, Hiromu Ito, Sandra Puentes, Arnela Mujagic, Hideo Tsurushima, Wataro, Kensuke Suzuki; Hirofumi Matsui, Yuji Matsumaru, Tetsuya Yamamoto, Akira Matsumura
Organizer
International stroke conference 2018
Related Report
Int'l Joint Research
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[Presentation] 後方循環急性期再開通療法の治療成績と今後の課題2017
Author(s)
丸島愛樹, 滝川知司, 早川幹人, 日野天祐, 松村英明, 渡部大輔, 池田剛, 中居康展, 上村和也, 中村和弘 谷中清之, 石川栄一, 松丸祐司, 松村明
Organizer
第76回日本脳神経外科学会学術総会
Related Report
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