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2019 Fiscal Year Research-status Report

Pathophysiological study in non-herpetic acute limbic encephalitis: establishment of assay of abs to AMPA-type GluR

Research Project

Project/Area Number 18K07865
Research InstitutionNational Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological Disorders

Principal Investigator

高橋 幸利  独立行政法人国立病院機構(静岡・てんかん神経医療センター臨床研究部), その他部局等, その他 (70262764)

Project Period (FY) 2018-04-01 – 2021-03-31
KeywordsAMPA型GluR / 自己抗体 / 行動異常 / てんかん / 学習障害
Outline of Annual Research Achievements

1.2018年度に構築した、ヒトAMPA型GluR(GluA1、GluA2、GluA3、GluA4の各サブユニット)とEGFPの融合タンパクを発現できるベクターを導入したHEK293T細胞を用いて、抗体検出条件を検討した。
2. GluA1+EGFP発現細胞と市販のGluA1抗体(細胞外aa271-285がエピトープのポリクローナル抗体)を用いて、抗体検出染色条件を確立した。3. GluA2+EGFP発現細胞と市販のGluA2抗体(細胞外aa179-193がエピトープのポリクローナル抗体)を用いて、抗体検出染色条件を確立した。4. GluA3+EGFP発現細胞と市販のGluA3抗体(細胞外aa372-395がエピトープのモノクローナル抗体)を用いて、抗体検出染色条件を確立した。5. GluA4+EGFP発現細胞と市販のGluA3抗体(細胞外aa3274-286がエピトープのポリクローナル抗体)を用いて、抗体検出染色条件を確立した。
6. 神経疾患9症例の髄液について、ヒトAMPA型GluR(GluA1、GluA2、GluA3、GluA4の各サブユニット)発現HEK293T細胞を用いて、前述の抗体検出染色条件でスクリーニングしたところ、1例の髄液でGluA1抗体を検出できた。

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

AMPA型GluRサブユニット4種の発現ベクターをそれぞれ導入した安定発現細胞を構築できた。AMPA型GluRサブユニット発現細胞を用いたcell-based assayによる抗体スクリーニング系を確立できた。少数例の検討ではあるが、髄液GluA1抗体を有する症例を1例見出した。

Strategy for Future Research Activity

引き続きAMPA型GluRサブユニット4種を安定発現する細胞を用いて、AMPA型GluRサブユニットに対する抗体をCell-based assayでスクリーニングし、症例を集積し、AMPA型GluR抗体陽性例の特徴を明らかにする。

  • Research Products

    (17 results)

All 2020 2019

All Journal Article (14 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 14 results,  Open Access: 5 results) Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] Serum matrix metallopeptidase-9 and tissue inhibitor of metalloproteinase-1 levels in autoimmune encephalitis2020

    • Author(s)
      Matsuura Ryuki、Hamano Shin-ichiro、Daida Atsuro、Nonoyama Hazuki、Kubota Jun、Ikemoto Satoru、Hirata Yuko、Koichihara Reiko、Kikuchi Kenjiro、Yamaguchi Akira、Sakuma Hiroshi、Takahashi Yukitoshi
    • Journal Title

      Brain and Development

      Volume: 42 Pages: 264~269

    • DOI

      10.1016/j.braindev.2019.11.010

    • Peer Reviewed
  • [Journal Article] Impact of CYP2C19 Phenotypes on Clinical Efficacy of Stiripentol in Japanese Patients With Dravet Syndrome2020

    • Author(s)
      Yamamoto Yoshiaki、Takahashi Yukitoshi、Ikeda Hiroko、Imai Katsumi、Kagawa Yoshiyuki、Inoue Yushi
    • Journal Title

      Therapeutic Drug Monitoring

      Volume: 42 Pages: 302~308

    • DOI

      10.1097/FTD.0000000000000676

    • Peer Reviewed
  • [Journal Article] Quinidine therapy and therapeutic drug monitoring in four patients with KCNT1 mutation2019

    • Author(s)
      Shinsaku Yoshitomi, Yukitoshi Takahashi,
    • Journal Title

      Epileptic Disorders

      Volume: 21 Pages: 48-54

    • DOI

      10.1684/epd.2019.1026

    • Peer Reviewed
  • [Journal Article] Efficacy and tolerability of perampanel in pediatric patients with Dravet syndrome2019

    • Author(s)
      Yoshitomi Shinsaku、Takahashi Yukitoshi、Yamaguchi Tokito、Imai Katsumi、Ishii Atsushi、Hirose Shinichi、Inoue Yushi
    • Journal Title

      Epilepsy Research

      Volume: 154 Pages: 34~38

    • DOI

      10.1016/j.eplepsyres.2019.02.014

    • Peer Reviewed
  • [Journal Article] Clinical Characteristics of Subependymal Giant Cell Astrocytoma in Tuberous Sclerosis Complex2019

    • Author(s)
      Jansen Anna C.、Takahashi Yukitoshi、Touraine Renaud、Youroukos Sotiris、Zonnenberg Bernard、Kingswood John C.
    • Journal Title

      Frontiers in Neurology

      Volume: 10 Pages: -

    • DOI

      10.3389/fneur.2019.00705

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Newly Diagnosed and Growing Subependymal Giant Cell Astrocytoma in Adults With Tuberous Sclerosis Complex: Results From the International TOSCA Study2019

    • Author(s)
      Jansen Anna C.、Takahashi Yukitoshi、Touraine Renaud、Youroukos Sotiris、Zonnenberg Bernard、Kingswood John C.
    • Journal Title

      Frontiers in Neurology

      Volume: 10 Pages: -

    • DOI

      10.3389/fneur.2019.00821

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The TOSCA Registry for Tuberous Sclerosis?Lessons Learnt for Future Registry Development in Rare and Complex Diseases2019

    • Author(s)
      Marques Ruben、Takahashi Yukitoshi、Touraine Renaud、Youroukos Sotiris、Zonnenberg Bernard、Nabbout Rima
    • Journal Title

      Frontiers in Neurology

      Volume: 10 Pages: -

    • DOI

      10.3389/fneur.2019.01182

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Prevalence and risk factors for hyponatremia in adult epilepsy patients: Large-scale cross-sectional cohort study2019

    • Author(s)
      Yamamoto Yoshiaki、Takahashi Yukitoshi、Imai Katsumi、Ohta Akiko、Kagawa Yoshiyuki、Inoue Yushi
    • Journal Title

      Seizure

      Volume: 73 Pages: 26~30

    • DOI

      10.1016/j.seizure.2019.10.013

    • Peer Reviewed
  • [Journal Article] Comprehensive analysis of coding variants highlights genetic complexity in developmental and epileptic encephalopathy2019

    • Author(s)
      Takata Atsushi、Nakashima Mitsuko、Saitsu Hirotomo、Mizuguchi Takeshi、Mitsuhashi Satomi、Takahashi Yukitoshi、Matsumoto Naomichi
    • Journal Title

      Nature Communications

      Volume: 10 Pages: -

    • DOI

      10.1038/s41467-019-10482-9

    • Peer Reviewed / Open Access
  • [Journal Article] Risk factors of cognitive impairment in pediatric epilepsy patients with focal cortical dysplasia2019

    • Author(s)
      Kimura Nobusuke、Takahashi Yukitoshi、Shigematsu Hideo、Imai Katsumi、Ikeda Hiroko、Ootani Hideyuki、Takayama Rumiko、Mogami Yukiko、Kimura Noriko、Baba Koichi、Matsuda Kazumi、Tottori Takayasu、Usui Naotaka、Kondou Satohiko、Inoue Yushi
    • Journal Title

      Brain and Development

      Volume: 41 Pages: 77~84

    • DOI

      10.1016/j.braindev.2018.07.014

    • Peer Reviewed
  • [Journal Article] A Unique Shape of Brainstem Lesion that Caused Orthostatic Hypotension in Anti-NMDAR Encephalitis2019

    • Author(s)
      Murakami Takenobu、Nakatani-Enomoto Setsu、Enomoto Hiroyuki、Takahashi Yukitoshi、Ugawa Yoshikazu
    • Journal Title

      Internal Medicine

      Volume: 58 Pages: 2861~2864

    • DOI

      10.2169/internalmedicine.2805-19

    • Peer Reviewed / Open Access
  • [Journal Article] てんかん発作が先行せずに発症したRasmussen脳炎(RE with delayed seizures onset)の女児例2019

    • Author(s)
      1.小松原孝夫、眞柄慎一、小林悠、放上萌美、皆川雄介、岡崎実、遠山潤、高橋 幸利
    • Journal Title

      脳と発達

      Volume: 51 Pages: 254-259

    • Peer Reviewed
  • [Journal Article] インフルエンザ感染後に辺縁系症状を繰り返した自己免疫性脳炎2019

    • Author(s)
      3.吉田太郎、亀井 淳、高橋幸利、赤坂真奈美、荒谷菜海、浅見麻耶、谷藤幸子、草野修司、小山耕太郎
    • Journal Title

      日本小児科学会雑誌

      Volume: 123 Pages: 1654-1659

    • Peer Reviewed
  • [Journal Article] 小脳腫脹が急速に進行し救命できなかった急性小脳炎例2019

    • Author(s)
      4.池邉記士、塙 淳美、田中 竜太、福島 富士子、京戸 玲子、河野 達夫、高橋 幸利、泉 維昌
    • Journal Title

      日本小児科学会雑誌

      Volume: 123 Pages: 1793-1799

    • Peer Reviewed
  • [Presentation] 辺縁系と脳炎、シンポジウム14:自己抗体介在性脳疾患診療の進歩、2019

    • Author(s)
      高橋幸利
    • Organizer
      第61回日本小児神経学会学術集会
    • Invited
  • [Presentation] Immunotherapy in postinfectious refractory epilepsy, Symposium 5: Epilepsy- refractory epilepsy2019

    • Author(s)
      Takahashi Y.
    • Organizer
      15th Asian Oceanian Congress of Child Neurology
    • Int'l Joint Research / Invited
  • [Presentation] West症候群NHO-Japan 342 ACTH cases study:ACTH2回目89例発作予後2019

    • Author(s)
      高橋幸利、太田晶子、
    • Organizer
      第122回日本小児科学会学術集会

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Published: 2022-03-04  

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