• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Establishment of a fail-safe system in cardiac regenerative medicine using CAR-T cell therapy

Research Project

Project/Area Number 22K16082
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53020:Cardiology-related
Research InstitutionKeio University

Principal Investigator

Okada Marina  慶應義塾大学, 医学部(信濃町), 助教 (00594582)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2022: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
KeywordsCAR-T細胞療法 / 心筋細胞移植 / 未分化細胞除去 / iPS細胞 / 奇形腫形成抑制 / 再生医療
Outline of Research at the Start

本研究では、(1)未分化抗原特異的CAR-T細胞がヒトiPS細胞由来の各種分化細胞には作用せず、残存未分化幹細胞のみに作用することの確認、(2)既に形成されたヒトiPS細胞由来奇形腫をCAR-T細胞療法により除去できるかの評価、さらに(3)ヒトiPS細胞由来分化細胞から発生した腫瘍(非奇形腫が主)をCAR-T細胞療法により除去できるかの評価を達成することを目標とする。

Outline of Final Research Achievements

We completed the production of monoclonal antibody against GPC3, the production of chimeric antigen receptor (CAR) by gene modification, and the production of CAR-T
against GPC3, and confirmed the strong cytotoxic effect on GPC3-expressing cells. Furthermore, we confirmed that it did not act on differentiated cells from iPS cells, but only on residual iPS cells. In animal experiments with mice, we elucidated that CAR-T cells administration suppressed teratoma formation when iPS cells were transplanted.

Academic Significance and Societal Importance of the Research Achievements

申請者はこれまでに、ヒトiPS細胞に特異的に発現し、分化心筋細胞には発現していない細胞膜表面抗原としてGPC3を同定し、これを標的抗原とするGPC3特異的細胞傷害性T細胞(CTL) 療法を開発してきた(BBRC 2019)。また、ヒトiPS細胞由来の奇形腫においてGPC3が高発現していることを初めて見出し、GPC3を標的としたCAR-T細胞療法の免疫学的アプローチにより再生医療における全ての領域で応用可能な非侵襲的腫瘍除去法の確立を可能とした。

Report

(2 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • Research Products

    (2 results)

All 2024 2023

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results)

  • [Journal Article] Right Ventricular Dysfunction in Patients With Concomitant Tricuspid Regurgitation Undergoing Transcatheter Aortic Valve Implantation2024

    • Author(s)
      de Jongh MC, Tsuruta H, Hayashida K, Hase H, Yoshijima N, Saito T, Myojin S, Kobari Y, Ryuzaki T, Imaeda S, Shirakawa K, Okada M, Endo J, Shinada K, Itabashi Y, Inohara T, Kohsaka S, Kato J, Takahashi T, Yamazaki M, Shimizu H, Fukuda K.
    • Journal Title

      Circulation Journal

      Volume: 88 Issue: 4 Pages: 451-459

    • DOI

      10.1253/circj.CJ-22-0262

    • ISSN
      1346-9843, 1347-4820
    • Year and Date
      2024-03-25
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Cardiac Regenerative Therapy Using Human Pluripotent Stem Cells for Heart Failure: A State-of-the-Art Review.2023

    • Author(s)
      Kishino Y, Tohyama S, Morita Y, Soma Y, Tani H, Okada M, Kanazawa H, Fukuda K.
    • Journal Title

      Journal of Cardiac Failure

      Volume: 29 Issue: 4 Pages: 503-513

    • DOI

      10.1016/j.cardfail.2022.10.433

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research

URL: 

Published: 2022-04-19   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi