マウス脳出血モデルに対するSOD1 過剰発現神経幹細胞移植治療の神経保護効果
要旨 近年動物実験において,神経幹細胞移植治療が脳出血後の神経機能回復を改善させることが示されているが,ホスト組織の劣悪な環境が移植細胞の生着を妨げ,治療効果を減弱させる要因となっている.我々は,この幹細胞の傷害機序として,血腫分解物であるヘモグロビンによる酸化傷害に注目し,遺伝子操作により抗酸化特性を強化した神経幹細胞移植の効果を検討した.内因性の細胞内活性酸素分解酵素であるcopper/zinc-superoxide dismutase(SOD1)を過剰発現させた神経幹細胞では,野生型神経幹細胞に比較し,ヘモグロビンによる酸化傷害が軽減し,移植後の生存率が有意に改善した.これに伴い,移植周...
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| Published in | 脳循環代謝(日本脳循環代謝学会機関誌) Vol. 26; no. 2; pp. 239 - 244 |
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| Main Authors | , , , , |
| Format | Journal Article |
| Language | Japanese |
| Published |
日本脳循環代謝学会
2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0915-9401 2188-7519 |
| DOI | 10.16977/cbfm.26.2_239 |
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| Abstract | 要旨 近年動物実験において,神経幹細胞移植治療が脳出血後の神経機能回復を改善させることが示されているが,ホスト組織の劣悪な環境が移植細胞の生着を妨げ,治療効果を減弱させる要因となっている.我々は,この幹細胞の傷害機序として,血腫分解物であるヘモグロビンによる酸化傷害に注目し,遺伝子操作により抗酸化特性を強化した神経幹細胞移植の効果を検討した.内因性の細胞内活性酸素分解酵素であるcopper/zinc-superoxide dismutase(SOD1)を過剰発現させた神経幹細胞では,野生型神経幹細胞に比較し,ヘモグロビンによる酸化傷害が軽減し,移植後の生存率が有意に改善した.これに伴い,移植周囲の神経栄養因子の発現量が増加し,神経保護作用が促進され,脳出血後の神経機能の回復が改善された.抗酸化特性を強化した神経幹細胞移植は脳出血の新たな治療となりうる可能性が示唆された. |
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| AbstractList | 要旨 近年動物実験において,神経幹細胞移植治療が脳出血後の神経機能回復を改善させることが示されているが,ホスト組織の劣悪な環境が移植細胞の生着を妨げ,治療効果を減弱させる要因となっている.我々は,この幹細胞の傷害機序として,血腫分解物であるヘモグロビンによる酸化傷害に注目し,遺伝子操作により抗酸化特性を強化した神経幹細胞移植の効果を検討した.内因性の細胞内活性酸素分解酵素であるcopper/zinc-superoxide dismutase(SOD1)を過剰発現させた神経幹細胞では,野生型神経幹細胞に比較し,ヘモグロビンによる酸化傷害が軽減し,移植後の生存率が有意に改善した.これに伴い,移植周囲の神経栄養因子の発現量が増加し,神経保護作用が促進され,脳出血後の神経機能の回復が改善された.抗酸化特性を強化した神経幹細胞移植は脳出血の新たな治療となりうる可能性が示唆された. |
| Author | 木内, 博之 八木, 貴 金丸, 和也 吉岡, 秀幸 若井, 卓馬 |
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| References | 1) 篠原幸人,小川彰,鈴木則宏,片山泰朗,木村彰男:脳出血:脳卒中治療ガイドライン2009: 2009, 130–158 5) Wang Z, Cui C, Li Q, Zhou S, Fu J, Wang X, Zhuge Q: Intracerebral transplantation of foetal neural stem cells improves brain dysfunction induced by intracerebral haemorrhage stroke in mice. J Cell Mol Med 15: 2624–2633, 2011 7) Lee HJ, Kim KS, Park IH, Kim SU: Human neural stem cells over-expressing VEGF provide neuroprotection, angiogenesis and functional recovery in mouse stroke model. PLoS One 2: e156, 2007 2) Andres RH, Guzman R, Ducray AD, Mordasini P, Gera A, Barth A, Widmer HR, Steinberg GK: Cell replacement therapy for intracerebral hemorrhage. Neurosurg Focus 24: E16, 2008 4) Lee HJ, Lim IJ, Lee MC, Kim SU: Human neural stem cells genetically modified to overexpress brain-derived neurotrophic factor promote functional recovery and neuroprotection in a mouse stroke model. J Neurosci Res 88: 3282–3294, 2010 8) Sakata H, Niizuma K, Yoshioka H, Kim GS, Jung JE, Katsu M, Narasimhan P, Maier CM, Nishiyama Y, Chan PH: Minocycline-preconditioned neural stem cells enhance neuroprotection after ischemic stroke in rats. J Neurosci 32: 3462–3473, 2012 3) Lee HJ, Park IH, Kim HJ, Kim SU: Human neural stem cells overexpressing glial cell line-derived neurotrophic factor in experimental cerebral hemorrhage. Gene Ther 16: 1066–1076, 2009 12) Rogers B, Yakopson V, Teng ZP, Guo Y, Regan RF: Heme oxygenase-2 knockout neurons are less vulnerable to hemoglobin toxicity. Free Radic Biol Med 35: 872–881, 2003 11) Qureshi AI, Mendelow AD, Hanley DF: Intracerebral haemorrhage. Lancet 373: 1632–1644, 2009 15) Wakai T, Sakata H, Narasimhan P, Yoshioka H, Kinouchi H, Chan PH: Transplantation of neural stem cells that overexpress SOD1 enhances amelioration of intracerebral hemorrhage in mice. J Cereb Blood Flow Metab 34: 441–449, 2014 6) Lee HJ, Kim MK, Kim HJ, Kim SU: Human neural stem cells genetically modified to overexpress Akt1 provide neuroprotection and functional improvement in mouse stroke model. PLoS One 4: e5586, 2009 9) Sakata H, Narasimhan P, Niizuma K, Maier CM, Wakai T, Chan PH: Interleukin 6-preconditioned neural stem cells reduce ischaemic injury in stroke mice. Brain 135: 3298–3310, 2012 13) Regan RF, Rogers B: Delayed treatment of hemoglobin neurotoxicity. J Neurotrauma 20: 111–120, 2003 10) Xi G, Keep RF, Hoff JT: Mechanisms of brain injury after intracerebral haemorrhage. Lancet Neurol 5: 53–63, 2006 14) Katsu M, Niizuma K, Yoshioka H, Okami N, Sakata H, Chan PH: Hemoglobin-induced oxidative stress contributes to matrix metalloproteinase activation and blood-brain barrier dysfunction in vivo. J Cereb Blood Flow Metab 30: 1939–1950, 2010 |
| References_xml | – reference: 12) Rogers B, Yakopson V, Teng ZP, Guo Y, Regan RF: Heme oxygenase-2 knockout neurons are less vulnerable to hemoglobin toxicity. Free Radic Biol Med 35: 872–881, 2003 – reference: 6) Lee HJ, Kim MK, Kim HJ, Kim SU: Human neural stem cells genetically modified to overexpress Akt1 provide neuroprotection and functional improvement in mouse stroke model. PLoS One 4: e5586, 2009 – reference: 9) Sakata H, Narasimhan P, Niizuma K, Maier CM, Wakai T, Chan PH: Interleukin 6-preconditioned neural stem cells reduce ischaemic injury in stroke mice. Brain 135: 3298–3310, 2012 – reference: 10) Xi G, Keep RF, Hoff JT: Mechanisms of brain injury after intracerebral haemorrhage. Lancet Neurol 5: 53–63, 2006 – reference: 1) 篠原幸人,小川彰,鈴木則宏,片山泰朗,木村彰男:脳出血:脳卒中治療ガイドライン2009: 2009, 130–158 – reference: 8) Sakata H, Niizuma K, Yoshioka H, Kim GS, Jung JE, Katsu M, Narasimhan P, Maier CM, Nishiyama Y, Chan PH: Minocycline-preconditioned neural stem cells enhance neuroprotection after ischemic stroke in rats. J Neurosci 32: 3462–3473, 2012 – reference: 11) Qureshi AI, Mendelow AD, Hanley DF: Intracerebral haemorrhage. Lancet 373: 1632–1644, 2009 – reference: 7) Lee HJ, Kim KS, Park IH, Kim SU: Human neural stem cells over-expressing VEGF provide neuroprotection, angiogenesis and functional recovery in mouse stroke model. PLoS One 2: e156, 2007 – reference: 13) Regan RF, Rogers B: Delayed treatment of hemoglobin neurotoxicity. J Neurotrauma 20: 111–120, 2003 – reference: 15) Wakai T, Sakata H, Narasimhan P, Yoshioka H, Kinouchi H, Chan PH: Transplantation of neural stem cells that overexpress SOD1 enhances amelioration of intracerebral hemorrhage in mice. J Cereb Blood Flow Metab 34: 441–449, 2014 – reference: 4) Lee HJ, Lim IJ, Lee MC, Kim SU: Human neural stem cells genetically modified to overexpress brain-derived neurotrophic factor promote functional recovery and neuroprotection in a mouse stroke model. J Neurosci Res 88: 3282–3294, 2010 – reference: 2) Andres RH, Guzman R, Ducray AD, Mordasini P, Gera A, Barth A, Widmer HR, Steinberg GK: Cell replacement therapy for intracerebral hemorrhage. Neurosurg Focus 24: E16, 2008 – reference: 14) Katsu M, Niizuma K, Yoshioka H, Okami N, Sakata H, Chan PH: Hemoglobin-induced oxidative stress contributes to matrix metalloproteinase activation and blood-brain barrier dysfunction in vivo. J Cereb Blood Flow Metab 30: 1939–1950, 2010 – reference: 3) Lee HJ, Park IH, Kim HJ, Kim SU: Human neural stem cells overexpressing glial cell line-derived neurotrophic factor in experimental cerebral hemorrhage. Gene Ther 16: 1066–1076, 2009 – reference: 5) Wang Z, Cui C, Li Q, Zhou S, Fu J, Wang X, Zhuge Q: Intracerebral transplantation of foetal neural stem cells improves brain dysfunction induced by intracerebral haemorrhage stroke in mice. J Cell Mol Med 15: 2624–2633, 2011 |
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| SubjectTerms | SOD1 ヘモグロビン 神経幹細胞 脳出血 酸化ストレス |
| Title | マウス脳出血モデルに対するSOD1 過剰発現神経幹細胞移植治療の神経保護効果 |
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