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2020 Fiscal Year Annual Research Report

各種プリオンによる末梢からの感染力評価法の樹立

Research Project

Project/Area Number 18H02738
Research InstitutionTohoku University

Principal Investigator

北本 哲之  東北大学, 医学系研究科, 教授 (20192560)

Project Period (FY) 2018-04-01 – 2021-03-31
Keywordsプリオン / 末梢ルート / FDC / 腹腔内投与
Outline of Annual Research Achievements

同じヨーロッパの汚染された組織を使用しながら、わが国の硬膜移植後のCJDでは、M1プリオン感染が70%、V2プリオン感染が30%とヨーロッパの孤発性CJDの比率に近い頻度で認められたが、英国及び仏国の成長ホルモン製剤投与後のCJDでは、90%以上がV2プリオン感染という特異な比率を示している。我々は、頭蓋内投与の硬膜移植と皮下投与の成長ホルモン製剤の投与法により感染性の違いが生じるのではないかという仮説に基づいて、末梢投与による感染性の違いを検討することにした。M1プリオン3症例、V2プリオン3症例、M2Cプリオン3症例、M2Tプリオンを3症例用いて、腹腔内投与後脾臓のFDCの陽性率を検討した。V2プリオンでは59匹中34匹感染(58%)が成立し、M1プリオンでは37匹中感染が成立したのは6匹(16%)であった。M2Cプリオンは48匹感染実験を行ったが感染成立は0匹、M2Tプリオンでは37匹中0匹であった。M1プリオンに関して、ヒト型プリオン蛋白を導入した129Met/Metマウスのみに限ると感染が成立したのは18匹中1匹(0.5%)で、むしろ129Val/Valの遺伝子型の方が、19匹中5匹(26.3%)と感染成立の確率は高いものであった。一方、V2プリオンに関しては、129Met/Metマウスでは28匹中11匹(39.2%),129Val/Valマウスでは31匹中23匹(74.2%)であった。以上のことより、明らかにM1プリオンは末梢ルートでは感染しにくいことが明らかとなり、わが国で最も多いM1プリオンは、わが国で最も多い遺伝子型である129Met/Metのヒトにはまず感染しないことが示唆された。

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

  • Research Products

    (15 results)

All 2021 2020

All Journal Article (15 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 15 results,  Open Access: 3 results)

  • [Journal Article] Detection of cutaneous prion protein deposits could help diagnose GPI‐anchorless prion disease with neuropathy2021

    • Author(s)
      Honda Hiroyuki、Matsuzono Kosuke、Satoh Kota、Fujisawa Masayoshi、Suzuki Satoshi O.、Furuyama Chiaki、Kitamoto Tetsuyuki、Fujimoto Shigeru、Abe Koji、Iwaki Toru
    • Journal Title

      European Journal of Neurology

      Volume: - Pages: -

    • DOI

      10.1111/ene.14720

    • Peer Reviewed
  • [Journal Article] System degeneration in an MM1-type sporadic Creutzfeldt-Jakob diseasecase with an unusually prolonged akinetic mutism state2021

    • Author(s)
      Iwasaki Yasushi、Mori Keiko、Ito Masumi、Kawai Yoshinari、Akagi Akio、Riku Yuichi、Miyahara Hiroaki、Kobayashi Atsushi、Kitamoto Tetsuyuki、Yoshida Mari
    • Journal Title

      Prion

      Volume: 15 Pages: 12~20

    • DOI

      10.1080/19336896.2020.1868931

    • Peer Reviewed
  • [Journal Article] Genetic Creutzfeldt-Jakob disease‐M232R with the cooccurrence of multiple prion strains,M1+M2C+M2T: Report of an autopsy case2021

    • Author(s)
      Shintaku Masayuki、Nakamura Takeshi、Kaneda Daita、Shinde Akiyo、Kusaka Hirofumi、Takeuchi Atsuko、Kitamoto Tetsuyuki
    • Journal Title

      Neuropathology

      Volume: - Pages: -

    • DOI

      10.1111/neup.12722

    • Peer Reviewed
  • [Journal Article] A case of M232R genetic Creutzfeldt-Jakob disease with Lewy bodies2020

    • Author(s)
      Akagi Akio、Iwasaki Yasushi、Hashimoto Rina、Aiba Ikuko、Inukai Akira、Mimuro Maya、Riku Yuichi、Miyahara Hiroaki、Kitamoto Tetsuyuki、Yoshida Mari
    • Journal Title

      Journal of the Neurological Sciences

      Volume: 409 Pages: 116605~116605

    • DOI

      10.1016/j.jns.2019.116605

    • Peer Reviewed
  • [Journal Article] Eliminating transmissibility of bovine spongiform encephalopathy by dry-heat treatment2020

    • Author(s)
      Matsuura Yuichi、Ishikawa Yukiko、Murayama Yuichi、Yokoyama Takashi、Somerville Robert A.、Kitamoto Tetsuyuki、Mohri Shirou
    • Journal Title

      Journal of General Virology

      Volume: 101 Pages: 136~142

    • DOI

      10.1099/jgv.0.001335

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Diffusion-weighted magnetic resonance imaging in dura mater graft-associated Creutzfeldt-Jakob disease2020

    • Author(s)
      Sakai Kenji、Hamaguchi Tsuyoshi、Sanjo Nobuo、Murai Hiroyuki、Iwasaki Yasushi、Hamano Tadanori、Honma Mari、Noguchi-Shinohara Moeko、Nozaki Ichiro、Nakamura Yosikazu、Kitamoto Tetsuyuki、Harada Masafumi、Mizusawa Hidehiro、Yamada Masahito
    • Journal Title

      Journal of the Neurological Sciences

      Volume: 418 Pages: 117094~117094

    • DOI

      10.1016/j.jns.2020.117094

    • Peer Reviewed
  • [Journal Article] Prion Gene PRNP Y162X Truncation Mutation Can Induce a Refractory Esophageal Achalasia2020

    • Author(s)
      Matsuzono Kosuke、Kim Younhee、Honda Hiroyuki、Anan Yuhei、Tsunoda Masato、Amano Yusuke、Fukusima Noriyoshi、Iwaki Toru、Kitamoto Tetsuyuki、Fujimoto Shigeru
    • Journal Title

      American Journal of Gastroenterology

      Volume: Publish Ahead of Print Pages: -

    • DOI

      10.14309/ajg.0000000000001044

    • Peer Reviewed / Open Access
  • [Journal Article] Clinicopathological findings of a long-term survivor of V180I genetic Creutzfeldt-Jakob disease2020

    • Author(s)
      Hayashi Yuichi、Iwasaki Yasushi、Waza Masahiro、Kato Shinei、Akagi Akio、Kimura Akio、Inuzuka Takashi、Satoh Katsuya、Kitamoto Tetsuyuki、Yoshida Mari、Shimohata Takayoshi
    • Journal Title

      Prion

      Volume: 14 Pages: 109~117

    • DOI

      10.1080/19336896.2020.1739603

    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of Sporadic Creutzfeldt-Jakob Disease and History of Neurosurgery to Identify Potential Iatrogenic Cases2020

    • Author(s)
      Hamaguchi Tsuyoshi、Sakai Kenji、Kobayashi Atsushi、Kitamoto Tetsuyuki、Ae Ryusuke、Nakamura Yosikazu、Sanjo Nobuo、Arai Kimihito、Koide Mizuho、Katada Fumiaki、Harada Masafumi、Murai Hiroyuki、Murayama Shigeo、Tsukamoto Tadashi、Mizusawa Hidehiro、Yamada Masahito
    • Journal Title

      Emerging Infectious Diseases

      Volume: 26 Pages: 1140~1146

    • DOI

      10.3201/eid2606.181969

    • Peer Reviewed
  • [Journal Article] Correlating diffusion-weighted MRI intensity with type 2 pathology in mixed MM-type sporadic Creutzfeldt-Jakob disease2020

    • Author(s)
      Ikeda Toshimasa、Iwasaki Yasushi、Sakurai Keita、Akagi Akio、Riku Yuichi、Mimuro Maya、Miyahara Hiroaki、Kitamoto Tetsuyuki、Matsukawa Noriyuki、Yoshida Mari
    • Journal Title

      Journal of the Neurological Sciences

      Volume: 408 Pages: 116515~116515

    • DOI

      10.1016/j.jns.2019.116515

    • Peer Reviewed
  • [Journal Article] A patient with spastic paralysis finally diagnosed as V180I genetic Creutzfeldt-Jakob disease 9 years after onset2020

    • Author(s)
      Nomura Taichi、Iwata Ikuko、Naganuma Ryoji、Matsushima Masaaki、Satoh Katsuya、Kitamoto Tetsuyuki、Yabe Ichiro
    • Journal Title

      Prion

      Volume: 14 Pages: 226~231

    • DOI

      10.1080/19336896.2020.1823179

    • Peer Reviewed / Open Access
  • [Journal Article] MM2 cortical form of sporadic Creutzfeldt-Jakob disease without progressive dementia and akinetic mutism: A case deviating from current diagnostic criteria2020

    • Author(s)
      Takahashi-Iwata Ikuko、Yabe Ichiro、Kudo Akihiko、Eguchi Katsuya、Wakita Masahiro、Shirai Shinichi、Matsushima Masaaki、Toyoshima Takanobu、Chiba Susumu、Tanikawa Satoshi、Tanaka Shinya、Satoh Katsuya、Kitamoto Tetsuyuki、Sasaki Hidenao
    • Journal Title

      Journal of the Neurological Sciences

      Volume: 412 Pages: 116759~116759

    • DOI

      10.1016/j.jns.2020.116759

    • Peer Reviewed
  • [Journal Article] α2,3 linkage of sialic acid to a GPI anchor and an unpredicted GPI attachment site in human prion protein2020

    • Author(s)
      Kobayashi Atsushi、Hirata Tetsuya、Nishikaze Takashi、Ninomiya Akinori、Maki Yuta、Takada Yoko、Kitamoto Tetsuyuki、Kinoshita Taroh
    • Journal Title

      Journal of Biological Chemistry

      Volume: 295 Pages: 7789~7798

    • DOI

      10.1074/jbc.RA120.013444

    • Peer Reviewed
  • [Journal Article] Co-existence of PrPD types 1 and 2 in sporadic Creutzfeldt-Jakob disease of the VV subgroup: phenotypic and prion protein characteristics2020

    • Author(s)
      Cali Ignazio、Puoti Gianfranco、Smucny Jason、Curtiss Paul Michael、Cracco Laura、Kitamoto Tetsuyuki、Occhipinti Rossana、Cohen Mark Lloyd、Appleby Brian Stephen、Gambetti Pierluigi
    • Journal Title

      Scientific Reports

      Volume: 10 Pages: -

    • DOI

      10.1038/s41598-020-58446-0

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Identification of intracerebral hemorrhage in the early‐phase of MM1+2C‐type sporadic Creutzfeldt-Jakob disease: A case report2020

    • Author(s)
      Akagi Akio、Iwasaki Yasushi、Yamamoto Akihiro、Matsuura Hiroshi、Ikeda Toshimasa、Mimuro Maya、Riku Yuichi、Miyahara Hiroaki、Kitamoto Tetsuyuki、Yoshida Mari
    • Journal Title

      Neuropathology

      Volume: 40 Pages: 399~406

    • DOI

      10.1111/neup.12658

    • Peer Reviewed

URL: 

Published: 2021-12-27  

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