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2021 Fiscal Year Final Research Report

Development of TIL culture method for tumor infiltrating T cell therapy for cervical cancer

Research Project

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Project/Area Number 19H03520
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 50020:Tumor diagnostics and therapeutics-related
Research InstitutionKeio University

Principal Investigator

IWATA Takashi  慶應義塾大学, 医学部(信濃町), 講師 (30296652)

Co-Investigator(Kenkyū-buntansha) 大多 茂樹  国際医療福祉大学, 医学部, 准教授 (20365406)
谷口 智憲  慶應義塾大学, 医学部(信濃町), 講師 (40424163)
Project Period (FY) 2019-04-01 – 2022-03-31
Keywords子宮頸癌 / 腫瘍浸潤リンパ球輸注療法 / 養子免疫療法
Outline of Final Research Achievements

In order to improve the response rate of the clinical trial "Tumor Infiltrating Lymphocyte (TIL) Infusion Therapy for Advanced Cervical Cancer" , the method of TIL culture was improved. First, we examined the possibility of culturing TILs in a BAG, which is simpler and safer than the conventional G-REX flask culture, and showed that a 1000-fold increase in growth was possible in 2 weeks. Furthermore, we showed that the addition of IL-15 to the culture medium can produce high quality TILs with less exhaustion. TILs produced by our new method injured organoids of autologous tumors.

Free Research Field

婦人科腫瘍学

Academic Significance and Societal Importance of the Research Achievements

再発子宮頸癌は極めて難治性で、他癌の比べ治療薬の選択肢が極めて少ない。我々が実施中のTIL療法は、海外の治療成績から、進行子宮頸癌症例の20-30%の完治が期待できると期待できる。TIL療法での奏効率の改善は、難治性子宮頸がんの治療に大きく貢献する。本研究では、より簡便かつ安全なBAGでの治療法を開発するとともに、高品質のTIL製造の可能性を示した。子宮頸癌は若年発症の癌であり、35才以下の女性では最多である。新規治療による社会的意義は大きく、その経済利益も大きいと考えられる。

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Published: 2023-01-30  

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