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2019 Fiscal Year Annual Research Report

Double-labeling correlative light and electron microscopy and its application to neurodengeration

Research Project

Project/Area Number 16K14572
Research InstitutionTokyo Medical and Dental University

Principal Investigator

内原 俊記  東京医科歯科大学, 大学院医歯学総合研究科, 特任教授 (10223570)

Project Period (FY) 2016-04-01 – 2020-03-31
KeywordsCLEM / Quantum Dot / gold enhance / double labeling
Outline of Annual Research Achievements

免疫標識した同一対象の蛍光像と免疫電顕像を直接比較する新技術:Quantum Dot(QD)はセレン(Se)とカドミウム(Cd)からなるnanocrystal で電子密度が高くhaloをもつ粒子として電顕で確認できる一方、蛍光を発するため通常の蛍光顕微鏡でも局在を確認できる。このQD を免疫標識に用いると病変の蛍光像が観察でき、同一標本の同一部位をそのまま電顕標本として再包埋・薄切すれば、同一病変の免疫電顕像としても直接比較できるという画期的な技法を我々は開発した。
しかし、これまで免疫電顕に用いられてきた金コロイド標識に比して QDは電子密度が低く、コントラストに乏しい点が弱点であった。 Energy-dispersive Xray analysis (EDX)は電顕超薄切片に電子ビームをあて、対象元素のエネルギー順位に対応したピークに対応する原子を質的に同定できる。我々は 免疫標識に用いたQDを 標本上でEDX解析し (Am J Pathol 2012; 180:4:1394-7, 2012年日本神経病理学会ポスター賞)、その成分であるSe/Cdを同定する新たな方法を発展させ、その分布を画像化する EDX mappingを世界に先駆けて完成させた (Acta Neuropathol Comm 2014;2:161- 2014年日本神経病理学会ポスター賞)。 Grayscaleと相場が決まっている免疫電顕像から標識QDのみを highlightできるこの手法は、蛍光像と対比することで、光顕レベルから分子レベルまで seamlessに連続したscaleで対象を観察できる画期的な手法となる。最終年度はこれらをくみあせわて、二重標識光顕・電顕法の新たな技法を世界で初めて完成して、ヒト変性疾患脳に応用するという当初目標を達成できた。(投稿中)

  • Research Products

    (26 results)

All 2020 2019

All Journal Article (20 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 16 results,  Open Access: 8 results) Presentation (6 results)

  • [Journal Article] Phosphorylated TDP-43 localizes to chronic cerebral infarctions in human brains2020

    • Author(s)
      T. Umahara T. Uchihara K. Hirao S. Shimizu and H. Hanyu
    • Journal Title

      Histol Histopathol-

      Volume: 313 Pages: 1

    • DOI

      -

    • Peer Reviewed
  • [Journal Article] Essential autophagic protein beclin 1 localized to atherosclerotic lesions of human carotid and major intracranial arteries2020

    • Author(s)
      T. Umahara T. Uchiara K. Hirao S. Shimizu T. Hashimoto M. Kohno and H. Hanyu
    • Journal Title

      J Neurol Sci

      Volume: 1 Pages: 1

    • DOI

      -

    • Peer Reviewed
  • [Journal Article] Crosstalk between neuropathology and clinical neurology: Fundamentals for clinical neurologists2020

    • Author(s)
      T. Uchihara M. Yoshida and N. Shibata
    • Journal Title

      Neuropathology

      Volume: 40 Pages: 21

    • DOI

      10.1111/neup.12627

    • Peer Reviewed / Open Access
  • [Journal Article] Neurofibrillary changes in change-How profile shift from 4R to 3R tau spreads in Alzheimer brain?2020

    • Author(s)
      T. Uchihara
    • Journal Title

      Neuropathology

      Volume: 印刷中 Pages: 印刷中

    • DOI

      -

    • Peer Reviewed / Open Access
  • [Journal Article] Comorbid argyrophilic grain disease in an 87-year-old male with spinocerebellar ataxia type 31 with dementia: a case report2020

    • Author(s)
      S. Toru S. Ishida T. Uchihara K. Hirokawa M. Kitagawa and K. Ishikawa
    • Journal Title

      BMC Neurol

      Volume: 20 Pages: 136

    • DOI

      10.1186/s12883-020-01723-2

    • Peer Reviewed
  • [Journal Article] Numerous ballooned neurons in a 94-year-old man with dementia with Lewy bodies2020

    • Author(s)
      T. Takeda T. Uchihara T. Endo M. Kitagawa K. Hirokawa T. Kobayashi and S. Toru
    • Journal Title

      J Neurol Sci

      Volume: 412 Pages: 1

    • DOI

      10.1016/j.jns.2020.116722

    • Peer Reviewed
  • [Journal Article] Clinical and pathological features affecting cardiac sympathetic denervation in autopsy-confirmed dementia with Lewy bodies2020

    • Author(s)
      M. Takahashi T. Uchihara M. Yoshida K. Wakabayashi A. Kakita H. Takahashi S. Toru and S. Orimo
    • Journal Title

      Eur J Neurol

      Volume: 印刷中 Pages: 印刷中

    • DOI

      10.1111/ene.14240

  • [Journal Article] Secondary cardiac involvement in anti-SRP-antibody-positive myopathy: an 87-year-old woman with heart failure symptoms as the first clinical presentation2020

    • Author(s)
      Hara R. Amano H. Yokote M. Ijima S. Zeniya T. Uchihara S. Yada M. Masumura H. Takei I. Nishino and S. Toru
    • Journal Title

      BMC Neurol

      Volume: 20 Pages: 29

    • DOI

      10.1186/s12883-020-1599-5

  • [Journal Article] Bilateral optic nerve edema in central-variant PRES2020

    • Author(s)
      H. Doi H. Yokote T. Uchihara and S. Toru
    • Journal Title

      Intern Med

      Volume: 印刷中 Pages: 印刷中

    • DOI

      -

    • Peer Reviewed
  • [Journal Article] The evolution-driven signature of Parkinson's disease2020

    • Author(s)
      N. J. Diederich T. Uchihara S. Grillner and C. G. Goetz
    • Journal Title

      Trends in Neuroscience

      Volume: 印刷中 Pages: 印刷中

    • DOI

      -

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Parallel enlargement of Marinesco bodies and nuclei and progressive deposition of p62 in pigmented neurons of the substantia nigra2020

    • Author(s)
      R. Amano S. Toru M. Yamane M. Kitagawa K. Hirokawa and T. Uchihara
    • Journal Title

      Neuropathology

      Volume: 印刷中 Pages: 印刷中

    • DOI

      10.1111/neup.12647

    • Peer Reviewed
  • [Journal Article] Three-dimensional surface models of autopsied human brains constructed from multiple photographs by photogrammetry2020

    • Author(s)
      H. Shintaku M. Yamaguchi S. Toru M. Kitagawa K. Hirokawa T. Yokota and T. Uchihara
    • Journal Title

      PLoS One

      Volume: 14 Pages: e0219619

    • DOI

      10.1371/journal.pone.0219619

    • Peer Reviewed / Open Access
  • [Journal Article] Development of demyelinating lesions in progressive multifocal leukoencephalopathy (PML): Comparison of magnetic resonance images and neuropathology of post-mortem brain2020

    • Author(s)
      D. Ono Y. Shishido-Hara S. Mizutani Y. Mori K. Ichinose M. Watanabe T. Tanizawa T. Yokota T. Uchihara and H. Fujigasaki
    • Journal Title

      Neuropathology

      Volume: 39 Pages: 294-306

    • DOI

      10.1111/neup.12562

    • Peer Reviewed / Open Access
  • [Journal Article] 病理解剖すると認知症は、診断エラーが結構多い?!2019

    • Author(s)
      内原俊記 and 融衆太
    • Journal Title

      総合診療

      Volume: 29 Pages: 1507-1509

  • [Journal Article] αシヌクレインの伝播をとめればパーキンソン病を根治できるか Noの立場から2019

    • Author(s)
      内原俊記
    • Journal Title

      MDSJ Letters

      Volume: 12 Pages: 1-3

  • [Journal Article] Frontotemporal dementia-associated protein phosphorylated TDP-43 localizes to atherosclerotic lesions of human carotid and main cerebral arteries2019

    • Author(s)
      T. Umahara T. Uchihara K. Hirao S. Shimizu T. Hashimoto J. Akimoto M. Kohno and H. Hanyu
    • Journal Title

      Histol Histopathol

      Volume: 1 Pages: 18140

    • DOI

      10.14670/HH-18-140

    • Peer Reviewed
  • [Journal Article] Detection of t(14;18)(q32;q21) for IgH/BCL2 in central nervous system tumor‐like lesions with chronic perivascular inflammation2019

    • Author(s)
      Y. Shishido‐Hara T. Yazawa T. Chiba K. Kojima J. Ishii K. Kobayashi J. H. Lee A. Sumiishi K. Tsuchiya T. Uchihara Y. Shiokawa N. Takayama M. Nagane and H. Kamma
    • Journal Title

      Clinical and Experimental Neuroimmunology

      Volume: 10 Pages: 244-25

    • DOI

      https://doi.org/10.1111/cen3.12541

    • Peer Reviewed / Open Access
  • [Journal Article] Detection of AD-specific four repeat tau with deamidated asparagine residue 279-specific fraction purified from 4R tau polyclonal antibody2019

    • Author(s)
      M. Ebashi S. Toru A. Nakamura S. Kamei T. Yokota K. Hirokawa and T. Uchihara
    • Journal Title

      Acta Neuropathol

      Volume: 138 Pages: 163-166

    • DOI

      10.1007/s00401-019-02012-0

    • Peer Reviewed / Open Access
  • [Journal Article] How to demix Alzheimer-type and PSP-type tau lesions out of their mixture -hybrid approach to dissect comorbidity2019

    • Author(s)
      M. Ebashi Y. Ito M. Uematsu A. Nakamura K. Hirokawa S. Kamei and T. Uchihara
    • Journal Title

      Acta Neuropathol Commun

      Volume: 7 Pages: 71

    • DOI

      10.1186/s40478-019-0708-4

    • Peer Reviewed / Open Access
  • [Journal Article] Parkinson's disease: Is it a consequence of human brain evolution?2019

    • Author(s)
      N. J. Diederich D. James Surmeier T. Uchihara S. Grillner and C. G. Goetz
    • Journal Title

      Mov Disord

      Volume: 34 Pages: 453-459

    • DOI

      10.1002/mds.27628

    • Peer Reviewed / Open Access
  • [Presentation] Possible distinction of 4R tau-positive lesions of AD and PSP probed by 4R-specific antibodies.2019

    • Author(s)
      Uchihara T Ebashi M Uematsu M Nakamura A Ito Y Hirokawa K Kamei S
    • Organizer
      AD/PD 2019 The 14th International Conference on Alzheimer's & Parkinson's Diseases.
  • [Presentation] Hyperbranching axon as a structural template to explain focal and multifocal Lewy body disorders.2019

    • Author(s)
      Toshiki Uchihara
    • Organizer
      第60回日本神経学会学術集会シンポジウム
  • [Presentation] レビー小体型認知症、大脳皮質基底核変性症、進行性核上性麻痺の臨床神経病理.2019

    • Author(s)
      内原俊記
    • Organizer
      第24回日本神経精神医学会学術集会
  • [Presentation] 「典型像と非典型像-病理と臨床の対話-」2019

    • Author(s)
      内原俊記
    • Organizer
      第60回日本神経学会学術大会
  • [Presentation] Braak-prion 仮説再考-真偽と虚実の狭間から-.2019

    • Author(s)
      内原俊記 、吉田眞理
    • Organizer
      第60回日本神経病理学会総会学術研究会
  • [Presentation] 変化する神経原線維変化.2019

    • Author(s)
      内原俊記
    • Organizer
      第60回日本神経病理学会総会学術研究会.

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Published: 2021-01-27  

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