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Elucidation of pathogenic mechanisms and developing new therapies of myasthenia gravis

Research Project

Project/Area Number 24390228
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Neurology
Research InstitutionTokyo Metropolitan Geriatric Hospital and Institute of Gerontology

Principal Investigator

SHIGEMOTO KAZUHIRO  地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究部長 (40284400)

Co-Investigator(Kenkyū-buntansha) MORI Shuuichi  地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究員 (30508677)
EDAMATSU Midori  地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究員 (10735343)
MIYAZAKI Tsuyoshi  地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究員 (50376480)
KOSHI Katsuo  地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究員 (20710057)
久保 幸穂  地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 助手 (00280769)
Co-Investigator(Renkei-kenkyūsha) KONISHI Tetsuro  独立行政法人国立病院機構宇多野病院, 神経内科, 院長 (50426508)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2014: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2012: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Keywords重症筋無力症 / 神経筋シナプス / 自己抗体 / MuSK / 疾患モデル / LRP4 / muscle-specifc kinase / 疾患モデル動物 / ラパマイシン / 3,4-DAP / Th2 / プロテアソーム / IgG4
Outline of Final Research Achievements

1.Some patients with myasthenia gravis (MG) caused by antibodies against muscle-specific kinase (MuSK; MuSKMG) apparently do not respond to immunosuppressive therapy and rapidly progress to life-threatening muscle atrophy. In addition, long-term administration of corticosteroids, which are first-line treatment of MG, is frequently responsible for severe adverse effect. We found that rapamycin treatment suppressed occurrence of MG-like phenotypes, including weight loss and significant decrement of compound muscle action potentials with the histological evidence. Rapamycin may be useful as an immunomodulation drug of MG.
2. We generated a murine model of MG caused by anti-Lrp4 antibodies via active immunization of LRP4 protein, providing the evidence for the pathogenicity of anti-Lrp4 antibodies. We expect our approach and the model will be of value to the MG research community, helping to accelerate development of therapeutic candidates for clinical translation.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (48 results)

All 2015 2014 2013 2012 2011 Other

All Journal Article (23 results) (of which Peer Reviewed: 9 results) Presentation (19 results) (of which Invited: 3 results) Book (1 results) Remarks (2 results) Patent(Industrial Property Rights) (3 results) (of which Overseas: 1 results)

  • [Journal Article] Guidelines for preclinical animal and cellular models of MuSK-myasthenia gravis.2015

    • Author(s)
      Phillips WE, Christadoss P, Losen M, Punga A, Shigemoto K, Vershuuren J, Vincent A.
    • Journal Title

      Exp Neurol

      Volume: on line Pages: 29-40

    • DOI

      10.1016/j.expneurol.2014.12.013

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The important role of the neuromuscular junction in maintaining muscle mass and strength.2014

    • Author(s)
      Mori S, Koshi K, Shigemoto K.
    • Journal Title

      J Phys Fitness Sports Med

      Volume: 3 Pages: 111-114

    • NAID

      130003397895

    • Related Report
      2014 Annual Research Report
  • [Journal Article] 動物モデルによる重症筋無力症の病態機序の解明2014

    • Author(s)
      森 秀一, 高嶋 留美, 小西 哲郎, 重本 和宏
    • Journal Title

      神経内科

      Volume: 80 Pages: 475-483

    • Related Report
      2014 Annual Research Report
  • [Journal Article] 筋萎縮(サルコペニア)における代謝変換のメカニズムの役割2014

    • Author(s)
      重本和宏
    • Journal Title

      実験医学

      Volume: 32 Pages: 1366-71

    • Related Report
      2014 Annual Research Report
  • [Journal Article] Mechanisms associated with the pathogenicity of antibodies against muscle-specific kinase in myasthenia gravis.2013

    • Author(s)
      Mori S, Shigemoto K.
    • Journal Title

      Autoimmun Rev

      Volume: (in press) Issue: 9 Pages: 912-7

    • DOI

      10.1016/j.autrev.2013.03.005

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Layer-specific dilation of penetrating arteries induced by stimulation of the nucleus basalis of Meynert in the mouse frontal cortex.2013

    • Author(s)
      Hotta, H., Masamoto,K., Uchida,S.,Sekiguchi,Y., Takuwa,H., Kawaguchi,H., Shigemoto,K., Sudo,R., Tanishita,K., Ito,H. and Kanno,I.
    • Journal Title

      J Cereb Blood Flow Metab.

      Volume: 9 Issue: 9 Pages: 1440-7

    • DOI

      10.1038/jcbfm.2013.92

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] RNA analysis of inner ear cells from formalin fixed paraffin embedded (FFPE) archival human temporal bone section using laser microdissection?A technical report2013

    • Author(s)
      Kimura Y, Kubo S, Koda H, Shigemoto K, Sawabe M, Kitamura K
    • Journal Title

      Hear res

      Volume: 302 Pages: 26-31

    • DOI

      10.1016/j.heares.2013.04.008

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Aging research on muscle and motor neuron.2013

    • Author(s)
      Shigemoto,K., Mori,S., Fukunaga,T. and Miyazaki T.
    • Journal Title

      Nihon Ronen Igakkai Zasshi.

      Volume: 50 Pages: 349-51

    • NAID

      10031203248

    • Related Report
      2013 Annual Research Report
  • [Journal Article] Aging of muscle.2013

    • Author(s)
      Shigemoto K, Fukunaga T, Mori S.
    • Journal Title

      Clin Calcium.

      Volume: 23 Pages: 23-8

    • Related Report
      2013 Annual Research Report
  • [Journal Article] サルコペニアの病因と疾患メカニズム.2013

    • Author(s)
      重本和宏、越勝男、森秀一.
    • Journal Title

      アンチエイジング医学

      Volume: 9 Pages: 536-40

    • Related Report
      2013 Annual Research Report
  • [Journal Article] 筋肉と神経-最新知見を踏まえて.2013

    • Author(s)
      重本 和宏、福永 大地、森 秀一.
    • Journal Title

      Bone Joint Nerve.

      Volume: 3 Pages: 27-31

    • Related Report
      2013 Annual Research Report
  • [Journal Article] 神経筋接合部の維持機構と筋萎縮.2013

    • Author(s)
      森 秀一、重本 和宏.
    • Journal Title

      医学のあゆみ.

      Volume: 244 Pages: 696-73

    • Related Report
      2013 Annual Research Report
  • [Journal Article] サルコペニア発症のメカニズム.2013

    • Author(s)
      宮崎 剛、森 秀一、重本 和宏.
    • Journal Title

      腎と骨代謝.

      Volume: 26 Pages: 99-107

    • Related Report
      2013 Annual Research Report
  • [Journal Article] Two novel sandwich ELISAs identify PAD4 levels and PAD4 autoantibodies in patients with rheumatoid arthritis.2013

    • Author(s)
      Ishigami, A., Uchida, Y., Miyazaki, T., Handa, S., Choi, E.K,, Kim, Y.S,, Kasahara, Y., Maruyama, N.
    • Journal Title

      Mod Rheumatol.

      Volume: 23 Issue: 4 Pages: 794-803

    • DOI

      10.1007/s10165-012-0748-0

    • NAID

      10031189176

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 筋肉の老化2013

    • Author(s)
      重本和宏、福永大地、森秀一
    • Journal Title

      Clin.Calcium

      Volume: 23 Pages: 23-28

    • Related Report
      2012 Annual Research Report
  • [Journal Article] 神経筋接合部の維持機構と筋委縮2013

    • Author(s)
      森秀一、重本和宏
    • Journal Title

      医学のあゆみ

      Volume: (印刷中)

    • Related Report
      2012 Annual Research Report
  • [Journal Article] 筋肉と神経2013

    • Author(s)
      重本和宏、福永大地、森秀一
    • Journal Title

      Bone Joint Nerve

      Volume: 13(印刷中)

    • Related Report
      2012 Annual Research Report
  • [Journal Article] サルコペニア発症のメカニズム2013

    • Author(s)
      宮崎剛、森秀一、重本和宏
    • Journal Title

      腎と骨代謝

      Volume: (印刷中)

    • Related Report
      2012 Annual Research Report
  • [Journal Article] 3,4-Diaminopyridine improves neuromuscular transmission in a MuSK antibody-induced mouse model of myasthenia gravis2012

    • Author(s)
      Mori, S. , Kishi, M., Kubo, S., Akiyoshi, T., Yamada, S., Miyazaki, T., Konishi, T., Maruyama, N., and Shigemoto, K.
    • Journal Title

      Journal of neuroimmunology

      Volume: 245 Issue: 1-2 Pages: 75-78

    • DOI

      10.1016/j.jneuroim.2012.02.010

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Intracellular and extracellular ATP coordinately regulate the inverse correlation between osteoclast survival and bone resorption.2012

    • Author(s)
      Miyazaki T, Iwasawa M
    • Journal Title

      J Biol Chem.

      Volume: 287(45) Issue: 45 Pages: 34808-23

    • DOI

      10.1074/jbc.m112.385369

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 運動トレーニングは老化による神経筋シナプスの変性を予防できるか2012

    • Author(s)
      福永大地、久保幸穂、森秀一、宮崎剛、樋上賀一、重本和宏
    • Journal Title

      健康医科学研究助成論文集

      Volume: 27 Pages: 47-49

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 厚生労働科学研究補助金(長寿科学総合研究事業)高齢者における加齢性 筋肉減弱現象(サルコペニア)に関する予防対策確立のための包括的研究研究班.サルコペニア:定義と診断に関する欧州関連学会のコンセンサス-高齢者のサルコペニアに関する欧州ワーキンググループの報告-の監訳とQ&A.2012

    • Author(s)
      原田敦、秋下雅弘、江頭正人、金憲経、金信敬、神崎恒一、重本和宏、島田裕之、下方浩史、鈴木隆雄、橋本有弘、細井孝之
    • Journal Title

      日本老年医学会雑誌

      Volume: 49 Pages: 788-805

    • Related Report
      2012 Annual Research Report
  • [Journal Article] Establishment and characterization of hepatocytes from an Immortomouse/SMP30/GNL knockout mouse hybrid lacking vitamin C to study vitamin C transport2011

    • Author(s)
      Amano, A., Handa, S., Aigaki, T., Shigemoto, K., Maruyama, N., Ishigami, A.
    • Journal Title

      Journal of biochemistry

      Volume: 150 Issue: 6 Pages: 671-678

    • DOI

      10.1093/jb/mvr109

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] Generation of experimental model of myasthenia gravis with antibodies against LRP42014

    • Author(s)
      Mori, S., Takashima, R., Shigemoto, K
    • Organizer
      Society for Neuroscience 2014
    • Place of Presentation
      Washington DC,USA
    • Year and Date
      2014-11-15 – 2014-11-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] LRP4は神経筋シナプスの維持に重要である2014

    • Author(s)
      森 秀一、重本 和宏
    • Organizer
      第69回日本体力医学会大会
    • Place of Presentation
      長崎
    • Year and Date
      2014-09-19 – 2014-09-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] サルコペニアの基礎と臨床2014

    • Author(s)
      重本 和宏
    • Organizer
      第69回日本体力医学会大会
    • Place of Presentation
      長崎
    • Year and Date
      2014-09-19 – 2014-09-21
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 抗LRP4抗体による重症筋無力症の動物モデル作成と病態機序の解明2014

    • Author(s)
      森秀一、久保幸穂、重本和宏
    • Organizer
      第55回日本神経学会学術大会
    • Place of Presentation
      東京
    • Year and Date
      2014-05-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 抗MuSK抗体陽性重症筋無力症に対するラパマイシンの治療効果の検討.2014

    • Author(s)
      村瀬直哉 森秀一、越勝男、重本和宏、樋上賀一.
    • Organizer
      日本薬学会第134回年会
    • Place of Presentation
      熊本
    • Related Report
      2013 Annual Research Report
  • [Presentation] Elucidation of pathogenic mechanism of myasthenia gravis with MuSK antibodies using a novel murine model.2013

    • Author(s)
      Mori, S., Kubo, S., Kishi, M., Konishi, T. and Shigemoto, K.
    • Organizer
      15th International congress of immunology
    • Place of Presentation
      Milano,Italy
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Ubiquitin-proteasome pathway plays essential roles in maintenance of neuromuscular junctions.2013

    • Author(s)
      Mori, S., Yamada, S., Kubo, S., Miyazaki, T. and Shigemoto, K.
    • Organizer
      第35回内藤コンファレンス
    • Place of Presentation
      札幌
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] A murine model of myasthenia gravis with MuSK antibodies; effect of genetic background.2013

    • Author(s)
      Mori, S., Kubo, S., Akiyoshi, T., Yamada, S., Miyazaki, T., Hotta, H., Desaki, J., Kishi, M., Konishi, T., Maruyama, N. and Shigemoto, K.
    • Organizer
      Myasthenia 2013
    • Place of Presentation
      Paris, France
    • Related Report
      2013 Annual Research Report
  • [Presentation] 抗MuSK抗体陽性重症筋無力症の発症に関与する分子機序の解明.2013

    • Author(s)
      森秀一、久保幸穂、重本和宏.
    • Organizer
      第54回日本神経学会学術大会
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report
  • [Presentation] 老齢マウスの筋線維タイプ特異的な筋萎縮の病態解明2012

    • Author(s)
      福永大地、森秀一、久保幸穂、中山亮、村瀬尚哉、宮崎剛、樋上賀一、重本和宏
    • Organizer
      日本基礎老化学会第35回大会
    • Place of Presentation
      船橋
    • Related Report
      2012 Annual Research Report
  • [Presentation] 神経筋シナプスの維持メカニズムの解明とサルコペニア研究の展開2012

    • Author(s)
      森秀一、重本和宏
    • Organizer
      第67回日本体力医学会大会
    • Place of Presentation
      岐阜
    • Related Report
      2012 Annual Research Report
  • [Presentation] A novel murine model of myasthenia gravis with MuSK antibodies.2012

    • Author(s)
      Mori, S., Kubo, S., Akiyoshi, T., Yamada, S., Miyazaki, T., Hotta, H., Desaki, J., Kishi, M., Konishi, T., Maruyama, N. Shigemoto, K.
    • Organizer
      12th International conference on myasthenia gravis and related disorders
    • Place of Presentation
      New York
    • Related Report
      2012 Annual Research Report
  • [Presentation] Examination of the treatment of myasthenia gravis with anti-MuSK antibodies using an experimental autoimmune animal model.2012

    • Author(s)
      Mori, S., Kubo, S., Akiyoshi, T., Yamada, S., Miyazaki, T., Hotta, H., Desaki, J., Kishi, M., Konishi, T., Maruyama, N. Shigemoto, K.
    • Organizer
      12th International conference on myasthenia gravis and related disorders
    • Place of Presentation
      New York
    • Related Report
      2012 Annual Research Report
  • [Presentation] 抗MuSK抗体陽性重症筋無力症の発症メカニズムに基づく治療薬の検討2012

    • Author(s)
      森秀一、久保幸穂、岸雅彦、小西哲郎、重本和宏
    • Organizer
      第53回日本神経学会学術大会
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report
  • [Presentation] Divalent and monovalent antibodies lead to dysfunction of MuSK via distinct mechanisms in a rabbit model of myasthenia gravis.2012

    • Author(s)
      Mori, S、, Yamada, S., Kubo, S., Chen, J., Matsuda, S., Shudou, M., Maruyama, N. Shigemoto, K.
    • Organizer
      9th Japanese-French Symposium for 'muscular dystrophy'
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report
  • [Presentation] A novel murine model of myasthenia gravis with MuSK antibodies2012

    • Author(s)
      Mori, S., Kubo, S., Akiyoshi, T., Yamada, S., Miyazaki, T., Hotta, H., Desaki, J., Kishi, M., Konishi, T., Maruyama, N. Shigemoto, K.
    • Organizer
      9th Japanese-French Symposium for 'muscular dystrophy'
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report
  • [Presentation] Examination of the treatment of myasthenia gravis with anti-MuSK antibodies using an experimental autoimmune animal model.2012

    • Author(s)
      Mori, S., Kubo, S., Akiyoshi, T., Yamada, S., Miyazaki, T., Hotta, H., Desaki, J., Kishi, M., Konishi, T., Maruyama, N. Shigemoto, K
    • Organizer
      9th Japanese-French Symposium for 'muscular dystrophy'
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report
  • [Presentation] Effectiveness of 3,4-diaminopyridine to symptomatic treatment of a MuSK antibody-induced mouse model of myasthenia gravis.2012

    • Author(s)
      Mori, S., Kubo, S., Akyoshi, T., Yamada, S., Miyazaki, T., Kishi, M. Shigemoto, K.
    • Organizer
      第35回日本神経科学大会
    • Place of Presentation
      名古屋
    • Related Report
      2012 Annual Research Report
  • [Presentation] Muscle fiber type specific pathology in aging mouse.2012

    • Author(s)
      Fukunaga, T., Kubo, S., Mori, S., Miyazaki, T., Higami, Y. dShigemoto, K.
    • Organizer
      第35回日本分子生物学会年会
    • Place of Presentation
      福岡
    • Related Report
      2012 Annual Research Report
  • [Book] サルコペニア24のポイント2013

    • Author(s)
      関根里恵 小川純人
    • Total Pages
      131
    • Publisher
      フジメディカル出版
    • Related Report
      2013 Annual Research Report
  • [Remarks] 地方独立研究法人東京都健康長寿医療センター研究所老年病態研究チーム運動器医学研究紹介

    • URL

      http://www.tmghig.jp/J_TMIG/kenkyu/team/undokiigaku.html

    • Related Report
      2013 Annual Research Report
  • [Remarks] Research Program of Gerontology of motor system

    • URL

      http://www.tmig.or.jp/research/DA33.html

    • Related Report
      2013 Annual Research Report
  • [Patent(Industrial Property Rights)] 加齢または筋萎縮の診断用バイオマーカー2014

    • Inventor(s)
      重本 和宏
    • Industrial Property Rights Holder
      地方独立行政法人東京都健康長寿医療センター
    • Industrial Property Rights Type
      特許
    • Filing Date
      2014-04-03
    • Related Report
      2014 Annual Research Report
  • [Patent(Industrial Property Rights)] 筋幹細胞又は筋芽細胞、及びそれを用いた代謝変換に関与する物質のスクリーニング方法、並びにスクリーニング方法によって得られた物質を含む医薬組成物2014

    • Inventor(s)
      重本 和宏
    • Industrial Property Rights Holder
      地方独立行政法人東京都健康長寿医療センター
    • Industrial Property Rights Type
      特許
    • Filing Date
      2014-10-24
    • Related Report
      2014 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] 筋幹細胞又は筋芽細胞、及びそれを用いた代謝変換に関与する物質のスクリーニング方法、及びスクリーニング方法によって得られた物質を含む医薬組成物2013

    • Inventor(s)
      重本和宏
    • Industrial Property Rights Holder
      東京都健康長寿医療センター研究所
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2013-221037
    • Filing Date
      2013-10-24
    • Related Report
      2013 Annual Research Report

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Published: 2012-04-24   Modified: 2019-07-29  

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