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2019 Fiscal Year Final Research Report

Development of evolutional gene modified T cell transfusion therapy using novel and self-developed measles viral vector

Research Project

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Project/Area Number 17H01547
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied pharmacology
Research InstitutionThe University of Tokyo

Principal Investigator

TANI Kenzaburo  東京大学, 医科学研究所, 特任教授 (00183864)

Co-Investigator(Kenkyū-buntansha) 竹田 誠  国立感染症研究所, ウイルス第三部, 部長 (40311401)
Project Period (FY) 2017-04-01 – 2020-03-31
Keywords麻疹ウイルスベクター / 遺伝子挿入 / キメラ抗原T細胞療法 / ナイーブT細胞 / 抗腫瘍効果 / Magnetタンパク / メチオニン分解酵素
Outline of Final Research Achievements

Our newly developed measles virus vector (MVV) is a novel and nonintegrative viral vector which proliferates cytoplasmically without inducing any genome toxicity in gene-transduced cells and can express target genes efficiently and safely for limited time. In this project we successfully could establish low immunogenic MVV for the purpose of clinically translatable effective chimeric antigen receptor (CAR)-T cell therapy. Furthermore, we developed novel photocontrollable measles virus proliferating methods using Magnet protein gene and tumor-specific killing methods using methioninase gene. Based on these current results, we will develop a novel, effective and safe second generation CAR-T cell therapy targeting solid tumors in our next project.

Free Research Field

医師薬学

Academic Significance and Societal Importance of the Research Achievements

麻疹ウイルスベクター(MVV)は我々が独自開発し、世界で初めて高安全性のヒト人工多能性幹(hiPS)細胞樹立に成功すると共に、生体内での抗腫瘍免疫誘導に極めて重要であると考えられるナイーブT細胞に高効率で遺伝子導入できることを初めて発見した。本研究では臨床応用を前提にMVVの抗原性の減弱、光によるベクター増幅制御の可能化、メチオニン分解酵素遺伝子搭載の可能化、に関する技術開発を行った。本研究の学術的意義および新規性は高く、本方法の確立により、より効果的な難治性固形腫瘍に対する治療法の開発が可能になることが期待できることから、社会的貢献度も極めて高いものと考えられる。

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Published: 2021-02-19  

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