2008 Fiscal Year Annual Research Report
リピドラフトのアミロイドβ蛋白オリゴマーを標的とした治療法の開発
Project/Area Number |
19590976
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Research Institution | Hirosaki University |
Principal Investigator |
瓦林 毅 Hirosaki University, 医学部・附属病院, 講師 (90186156)
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Co-Investigator(Kenkyū-buntansha) |
東海林 幹夫 弘前大学, 大学院・医学研究科, 教授 (60171021)
渡辺 光法 弘前大学, 医学部・附属病院, 助教 (90251107)
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Keywords | リピドラフト / アミロイドβ蛋白 / オリゴマー / コレステロール / アルツハイマー病 / タウ / トランスジェニックマウス / シヌクレイン |
Research Abstract |
神経変性疾患の新たな治療法の開発のためにlipid raftsでのoligomer蓄積を検討した. 1. Aβ前駆体蛋白(APP)をstableに発現するCHO cellでAβはlipid rafts分画に高濃度に存在した. Lipid raftsに存在するGPI anchor proteinのknock outではAPPおよびC末fragmentがlipid raftsに著明に増加した. lipid raftsの組成の変化がAβの代謝を変化させることが示された. 2. APPを発現するTg2576マウスではAβ蓄積の超早期の6月齢からAβ ollgomerが脳lipid raftsに蓄積を開始した.Tg2576マウスに高コレステロール食を投与すると脳Aβ40, Aβ42の増加と共に脳lipid rafts分画中へのAβ oligomerが増加することが示された. 3. Tau発現マウスであるTgTauP301Lマウスにおいてもその初期の3月齢からtauおよびリン酸化tauが脳lipid raftsに高濃度に存在し, 加齢と共に増加した.高齢マウスではlipidraftsに神経原線維変化に特有なsmear patternを認めた. よってtau oligomerもlipid raftsに蓄積することが示された. 4. 我々はα-synucleinを発現するParkinson病モデルマウスTgαSYNマウスを新しく開発し, Lewy小体様の封入体, 線条体のドパミンの減少, 行動障害を再現した. このマウスでも初期から脳lipid raftsへのα-synuclein蓄積の増加を認めた. Lipidraftsは蛋白凝集体蓄積の共通開始部位であることが示された. lipid raftsの蛋白および脂質の組成の変化はAβの代謝を変化させた. lipid raftsにおけるoligomer制御は神経変性疾患の根本的治療法になりうると考えられた.
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Research Products
(79 results)
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[Journal Article] Motor impairment and aberrant production of neurochemicals in human a-synuclein A30P+A53T transgenic mice with α-synuclein pathology2009
Author(s)
Ikeda M, Kawarabayashi T. Harigaya Y, Sasaki A, Yamada S, Matsubara E, Murakami T, Tanaka Y, Kurata T, Wuhua X, Ueda K, Kuribara H, Ikarashi Y Nakazato Y, Okamoto K, Abe K, Shoji M
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Journal Title
Brain Res 1250
Pages: 232-241
Peer Reviewed
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[Journal Article] A chemical chaperone, sodium 4-phenylbutyric acid, attenuate5 the pathogenic potency in human α-synuclein A30P+A53T transgenic mice2009
Author(s)
Ono K, Ikemoto M, Kawarabayashi T, Ikeda M, Nishinakagawa T, Hosokawa M, Shoji M, Takahashi M, Nakashima M
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Journal Title
Parkinsonism Relat Disord (Epub ahead of print)
Peer Reviewed
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[Journal Article] An unusual case of chronic relapsing tetanus associatec with mandibular osteomyelitis2009
Author(s)
Wakasaya Y, Watanabe M, Tomiyama M, Suzuki C, Jackson M, Fujimuro M, Kimura T, Seino Y, Kawarabayashi T, Yamamoto-Watanabe Y, Matsubara E, Shirahama I, Takamura A, Nakahata N, Shoji M
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Journal Title
Intern Med (Epub ahead of print)
Peer Reviewed
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[Journal Article] GAB2 is not associated with late-onset Alzheimer's disease in Japanese2009
Author(s)
Miyashita A, Arai H, Asada T, Imagawa M, Shoji M, Higuchi S, Urakami K, Toyabe S, Akazawa K, Kanazawa I, Ihara Y, Kuwano R
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Journal Title
Eur J Hum Genet 17
Pages: 682-686
Peer Reviewed
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[Journal Article] Genetic association study on in and around the APOE in late-onset Alzheimer disease in Japanese2009
Author(s)
Kuwano R, Takei N, Miyashita A, Tsukie T, Arai H, Asada T, Imagawa M, Shoji M, Higuchi S, Urakami K, Kimura H, Kakita A, Takahashi H, Tsuji S, Kanazawa I, Ihara Y, Odani S, Kuwano R
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Journal Title
Peer Reviewed
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[Journal Article] Plasma antibodies to AB40 and AB42 in patients with Alzheimer's disease and normal controls2008
Author(s)
Xu W, Kawarabayashi T, Matsubara E, Deguchi K, Murakami T, Harigaya Y, Ikeda M, Amari M, Kuwano R, Abe K, Shoji M
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Journal Title
Brain Res 1219
Pages: 169-179
Peer Reviewed
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[Journal Article] Differentiation of PA from early PSP with different patterns of symptoms and CBF reduction2008
Author(s)
Kurata T, Hayashi T, Murakami T, Miyazaki K, Morimoto N, Ohta Y, Takehisa Y, Nagai M, Kawarabayashi T, Takao Y, Ohta T, Harigaya Y, Manabe Y, Kamiya T, Shoji M, Abe K
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Journal Title
Neurol Res 30
Pages: 860-867
Peer Reviewed
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[Journal Article] A small trinucleotide expansion in the TBP gene gives rise to asporadic case of SCA17 with abnormal putaminal findings on MRI2008
Author(s)
Watanabe M, Monai N, Jackson M, Yamamoto-Watanabe Y, Ikeda Y, Suzuki C, Tomiyama M, Kawarabayashi T, Kimura T, Seino Y, Wakasaya Y, Miki Y, Matsubara E, Shoji M
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Journal Title
Intern Med 47
Pages: 2179-2182
Peer Reviewed
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[Journal Article] A Novel Mutation in the Arylsulfatase A Gene Associated with Adult-Onset Metachromatic Leukodystrophy without Clinical Evidence of Neuropathy.2008
Author(s)
Suzuki C, Watanabe M, Tomiyama M, Sugimoto K, Nanba E, Jackson M, Kimura T, Seino Y, Wakasaya Y, Kawarabayashi T, Miki Y, Yamamoto-Watanabe Y, Shoji M
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Journal Title
Eur Neurol 60
Pages: 310-311
Peer Reviewed
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[Presentation] Enhanced accumulation of phosphorylated α-synuclein in doubly transgenic mice expressing mutant βAPP and PS-12009
Author(s)
Kurata T, Kawarabayashi T Ikeda Y, Murakami T, Miyazaki K, Morimoto N, Ota Y, Takehisa Y, Nagai M, Ikeda M, Matsubara E, Westaway D, St. George Hyslop P, Harigaya Y, Shoji M, Abe K
Organizer
11th Meeting of Hirosaki International Forum of Medical Science
Place of Presentation
Hirosaki
Year and Date
2009-03-27
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[Presentation] Clinical and molecular genetic study of ataxia-ocular apraxia 2 andfunctional analyses of senataxin.2009
Author(s)
Watanabe M, Fujimuro M, Jackson M, Yamamoto-Watanabe Y, Kawarabayashi T, Takamura A, Nakahata N,. Shirahama I, Wakasaya Y, Seino Y, Matsubara E, Shoji M
Organizer
11th Meeting of Hirosaki International Forum of Medical Science
Place of Presentation
Hirosaki
Year and Date
2009-03-27
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[Presentation] Measurement of cystatin C in the cerebrospinal fluid of neurodegenerative disorders2009
Author(s)
Yamamoto-Watanabe Y, Watanabe M, Akimoto H, Sugimoto K, Yasujima M, Jackson M, Kawarabavashi T Takamura A, Nakahata N, Shirahama I, Wakasaya,Y, Seino Y, Matsubara E, Shoji M
Organizer
11th Meeting of Hirosaki International Forum of Medical Science
Place of Presentation
Hirosaki
Year and Date
2009-03-27
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[Presentation] SPECT analysis is useful in differentiation of pure akinesia from early progressive supr'anuclear palsy2009
Author(s)
Ikeda Y, Kurata T, Hayashi T, Murakami T, Miyazaki K, Morimoto N, Ohta Y, Takehisa Y, Nagai M, Kawarabavashi T, Takao Y, Ohta T, Harigaya Y, Manabe Y, Kamiya T, Shoji M, Abe K
Organizer
11th Meeting of Hirosaki International F orum of Medical Science
Place of Presentation
Hirosaki
Year and Date
2009-03-27
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[Presentation] CSF tau correlates with brain tau in tau transgenic mice2008
Author(s)
Kawarabayashi T, Seino1Y, Wakasaya1Y, Watanabe M, Kimura1T, Suzuki C, Tomiyama M, Matsubara E, Ishiguro K, Westaway D, St.George-Hyslop P, Shoji M
Organizer
ICAD2008
Place of Presentation
Chicago
Year and Date
2008-07-28
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[Presentation] 神経原線維変化と神経細胞死を再現するタウマウスモデルの作成2008
Author(s)
瓦林毅, 清野祐輔, 若佐谷保仁, 渡辺光則, 木村珠喜, 鈴木千恵子, 審山誠彦, 東海林幹夫, 松原悦朗, 池田将樹, 針谷康夫
Organizer
第50回日本老年医学会学術集会
Place of Presentation
千葉
Year and Date
2008-06-20
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