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Characteristics of brain functional shift accompanied with brain tumor

Research Project

Project/Area Number 20K21649
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 56:Surgery related to the biological and sensory functions and related fields
Research InstitutionKanazawa University

Principal Investigator

Nakada Mitsutoshi  金沢大学, 医学系, 教授 (20334774)

Co-Investigator(Kenkyū-buntansha) 篠原 治道  金沢大学, 医学系, 客員教授 (20135007)
木下 雅史  金沢大学, 医学系, 講師 (50525045)
中嶋 理帆  金沢大学, 保健学系, 助教 (60614865)
Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords脳腫瘍 / 覚醒下手術 / 機能シフト / 可塑性 / 運動 / 言語 / 高次脳機能 / 脳可塑性 / 白質解剖
Outline of Research at the Start

脳に腫瘍が発生した時、腫瘍の緩徐な進展により脳局所が侵されたとしても、脳機能が損なわれない場合がある。これは脳に備わる可塑性により脳機能がシフトしたためと考えられる。現在、脳機能シフトのパターンやメカニズムの詳細は全く分かっていない。 本研究では脳機能シフトの法則と限界を明らかにする。得られる知見は、脳病変の完全摘出と機能温存を基本理念とする脳神経外科手術に革新的な進歩をもたらすと考えられる。

Outline of Final Research Achievements

This study aimed to clarify the limits of the functional shift by tumor invasion to functional brain regions. In this study, we identified the characteristics of functional shift and hub regions of brain function, including motor, language, and other neuropsychological functions. The functional area of movement shifted either within or across the precentral gyrus. The functional shift was developed by tumor infiltration in the primary motor area and repeated surgeries. For the language function, as the tumor extended to the classical language area, it shifted to the surrounding gyrus. Furthermore, we speculated that the neuropsychological functions, including emotion recognition, working memory, and visuospatial cognition, were shifted to the surrounding areas in the patients with brain tumors since the areas identified as functional localizations were more extensive than that of the areas shown previously.

Academic Significance and Societal Importance of the Research Achievements

従来、脳の解剖学的機能野や主要神経線維は損傷により重篤な障害を残すため「触れてはいけない領域」と認識されてきた。本研究では、ヒト脳機能を直接的に調べることができる覚醒下手術の知見に基づいて機能シフトの特徴と機能シフトの限界を明らかにした。本研究結果は、解剖学的には機能領域であったとしても、覚醒下手術などによる術中モニタリング下で積極的な外科的摘出の対象領域であることを示唆している。従来の脳神経外科手術の常識を覆すのみならず、脳科学への貢献度が高く学術的意義が大きい。また、病変摘出率は生命予後の延長に直結することから医学的・社会的意義は大きい。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (26 results)

All 2022 2021 2020 Other

All Journal Article (9 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 9 results,  Open Access: 9 results) Presentation (16 results) (of which Int'l Joint Research: 3 results,  Invited: 5 results) Remarks (1 results)

  • [Journal Article] Two different subcortical language networks supporting distinct Japanese orthographies: morphograms and phonograms2022

    • Author(s)
      Tamai Sho、Kinoshita Masashi、Nakajima Riho、Okita Hirokazu、Nakada Mitsutoshi
    • Journal Title

      Brain Structure and Function

      Volume: 227 Issue: 3 Pages: 1145-1154

    • DOI

      10.1007/s00429-022-02454-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Disconnection of posterior part of the frontal aslant tract causes acute phase motor functional deficit2021

    • Author(s)
      Nakajima Riho、Kinoshita Masashi、Okita Hirokazu、Shinohara Harumichi、Nakada Mitsutoshi
    • Journal Title

      Brain and Cognition

      Volume: 151 Pages: 105752-105752

    • DOI

      10.1016/j.bandc.2021.105752

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Fiber Dissection Study of the Anterior Commissure: Correlations with Diffusion Spectrum Imaging Tractography and Clinical Relevance in Gliomas2021

    • Author(s)
      Liu Xiaoliang、Kinoshita Masashi、Shinohara Harumichi、Hori Osamu、Ozaki Noriyuki、Nakada Mitsutoshi
    • Journal Title

      Brain Topography

      Volume: 35 Issue: 2 Pages: 232-240

    • DOI

      10.1007/s10548-021-00879-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Quality of life following awake surgery depends on ability of executive function, verbal fluency, and movement2021

    • Author(s)
      Nakajima Riho、Kinoshita Masashi、Okita Hirokazu、Nakada Mitsutoshi
    • Journal Title

      Journal of Neuro-Oncology

      Volume: 156 Issue: 1 Pages: 173-183

    • DOI

      10.1007/s11060-021-03904-6

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Simultaneous Damage of the Cingulate Cortex Zone II and Fronto-Striatal Circuit Causes Prolonged Selective Attentional Deficits2021

    • Author(s)
      Nakajima Riho、Kinoshita Masashi、Nakada Mitsutoshi
    • Journal Title

      Frontiers in Human Neuroscience

      Volume: 15 Pages: 762578-762578

    • DOI

      10.3389/fnhum.2021.762578

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Preserving Right Pre-motor and Posterior Prefrontal Cortices Contribute to Maintaining Overall Basic Emotion2021

    • Author(s)
      Nakajima Riho、Kinoshita Masashi、Okita Hirokazu、Liu Zhanwen、Nakada Mitsutoshi
    • Journal Title

      Frontiers in Human Neuroscience

      Volume: 15 Pages: 612890-612890

    • DOI

      10.3389/fnhum.2021.612890

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Awake surgery for right frontal lobe glioma can preserve visuospatial cognition and spatial working memory2020

    • Author(s)
      Nakada Mitsutoshi、Nakajima Riho、Okita Hirokazu、Nakade Yusuke、Yuno Takeo、Tanaka Shingo、Kinoshita Masashi
    • Journal Title

      Journal of Neuro-Oncology

      Volume: 151 Issue: 2 Pages: 221-230

    • DOI

      10.1007/s11060-020-03656-9

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Motor Functional Reorganization Is Triggered by Tumor Infiltration Into the Primary Motor Area and Repeated Surgery2020

    • Author(s)
      Nakajima Riho、Kinoshita Masashi、Nakada Mitsutoshi
    • Journal Title

      Frontiers in Human Neuroscience

      Volume: 14 Pages: 327-327

    • DOI

      10.3389/fnhum.2020.00327

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pyramid-Shape Crossings and Intercrossing Fibers Are Key Elements for Construction of the Neural Network in the Superficial White Matter of the Human Cerebrum2020

    • Author(s)
      Shinohara Harumichi、Liu Xiaoliang、Nakajima Riho、Kinoshita Masashi、Ozaki Noriyuki、Hori Osamu、Nakada Mitsutoshi
    • Journal Title

      Cerebral Cortex

      Volume: - Issue: 10 Pages: 5218-5228

    • DOI

      10.1093/cercor/bhaa080

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 脳神経外科学的アプローチによる脳科学研究2022

    • Author(s)
      中田光俊
    • Organizer
      第24回 日本薬物脳波学会 & 第38回 日本脳電磁図トポグラフィ研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 脳の白質神経ネットワークと機能2022

    • Author(s)
      中田光俊
    • Organizer
      微小脳神経外科解剖セミナー in 福岡
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 脳腫瘍摘出術の新たな扉を開く2022

    • Author(s)
      中田光俊
    • Organizer
      第2回四国Neurosurgery Skill up Seminar
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 脳腫瘍治療における脳機能を守り抜く戦い2021

    • Author(s)
      中田光俊
    • Organizer
      最新のグリオーマの治療戦略
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 高次脳機能温存のための白質解剖2021

    • Author(s)
      中田光俊
    • Organizer
      第41回日本脳神経外科コングレス総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 視空間認知と作業記憶の温存を意図した右前頭葉グリオーマ摘出時の不可侵領域の策定2021

    • Author(s)
      中田光俊、中嶋理帆、沖田浩一、木下雅史
    • Organizer
      第26回日本脳腫瘍の外科学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Preservation of deep posterior part of the middle frontal gyrus and cingulate gyrus zone II prevents visuospatial cognition and working memory impairment during right frontal glioma surgery2021

    • Author(s)
      Nakada M, Nakajima R, Kinoshita M
    • Organizer
      2021 CNS Annual Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Awake surgery for right frontal lobe glioma can preserve visuospatial cognition and spatial working memory2021

    • Author(s)
      Nakada M
    • Organizer
      2021 CNS Annual Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 右前頭葉グリオーマ摘出術後に視空間認知機能障害をきたす背側上縦束責任領域の同定2021

    • Author(s)
      中田光俊、中嶋理帆、沖田浩一、木下雅史
    • Organizer
      日本脳神経外科学会 第80回学術総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 覚醒下マッピングによる言語機能シフトの特徴と解剖学的メカニズムに関する考察2021

    • Author(s)
      中田光俊、中嶋理帆、沖田浩一、木下雅史、篠原治道
    • Organizer
      日本脳神経外科学会 第80回学術総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Factors influencing poor independence level following resection of the right temporo-parietal glioblastomas2021

    • Author(s)
      Nakada M, Nakajima R, Okita H, Kinoshita M
    • Organizer
      Society for Neuro-Oncology 26th Annual Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 術後経過にみるグリオーマ手術のありかた2021

    • Author(s)
      中田光俊
    • Organizer
      第39回日本脳腫瘍学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 覚醒下マッピング所見に基づく前頭言語野の言語機能局在の特徴2021

    • Author(s)
      中嶋理帆,木下雅史,沖田浩一,中田光俊
    • Organizer
      第44回日本脳神経CI学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 悪性グリオーマに対する臨床の光と影2020

    • Author(s)
      中田光俊
    • Organizer
      第23回日本臨床脳神経外科学会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 右前頭葉グリオーマに対する高次脳機能温存型覚醒下手術の機能予後2020

    • Author(s)
      中田光俊
    • Organizer
      日本脳神経外科学会第79回学術総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 覚醒下手術で認められる言語機能シフトの構造的メカニズムの解析2020

    • Author(s)
      中田光俊
    • Organizer
      日本脳神経外科学会第79回学術総会
    • Related Report
      2020 Research-status Report
  • [Remarks] 金沢大学脳神経外科

    • URL

      https://neurosurgery.w3.kanazawa-u.ac.jp/j/

    • Related Report
      2021 Annual Research Report 2020 Research-status Report

URL: 

Published: 2020-08-03   Modified: 2023-01-30  

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