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2020 Fiscal Year Final Research Report

Development of a new treatment via the new mouse glioma model which shows perineural invasion.

Research Project

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Project/Area Number 19K18385
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionGifu University

Principal Investigator

Miyai Masafumi  岐阜大学, 医学部附属病院, 非常勤講師 (60613502)

Project Period (FY) 2019-04-01 – 2021-03-31
Keywords神経周囲浸潤 / ヒストンH3K27M変異 / マウスグリオーマモデル
Outline of Final Research Achievements

We established a mouse glioma cell line (IG27) by manipulating the histone H3K27M mutation, frequently harboring in diffuse intrinsic pontine gliomas, that reproduced the diffusion invasion phenotype, PS and PVS, following intracranial transplantation in the mouse brain.
Increased H3K27 acetylation in IG27 cells activated glucose transporter 1 (Glut1) expression. Gain- and loss-of-function in vivo experiments demonstrated that Glut1 controls the PS of glioma cells, i.e., attachment to and contact with neurons. GLUT1 is also associated with early progression in glioma patients.
Targeting the transporter Glut1 suppresses the unique phenotype, “diffuse invasion” in the diffuse glioma mouse model.

Free Research Field

脳腫瘍

Academic Significance and Societal Importance of the Research Achievements

グリオーマのびまん性浸潤は外科的根治術を不可能にしている最大の原因である。びまん性浸潤の中でも神経周囲浸潤に対する有効な治療は現時点ではない。
我々が樹立したびまん性グリオーマモデルは、遺伝子異常に基づき、かつ病理組織学的特徴を再現したモデルである。本研究により、Glut1が神経周囲浸潤に関与していることが示され、Glut1阻害薬がグリオーマの神経周囲浸潤に対する治療となりうる可能性を示した。

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Published: 2022-01-27  

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