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2023 Fiscal Year Final Research Report

Induced pluripotent stem cell-derived dendritic cell vaccine therapy genetically modified on the ubiquitin-proteasome system

Research Project

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Project/Area Number 22K20834
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0901:Oncology and related fields
Research InstitutionWakayama Medical University

Principal Investigator

Tominaga Shinta  和歌山県立医科大学, 医学部, 学内助教 (10868722)

Project Period (FY) 2022-08-31 – 2024-03-31
Keywords癌免疫 / 樹状細胞ワクチン / iPS細胞 / ユビキチンプロテアソーム系
Outline of Final Research Achievements

We focused on the ubiquitin-proteasome-mediated processing of ubiquitin and tumor-associated antigen (TAA) as a means of enhancing the anti-tumor effect of iPS cell-derived dendritic cell vaccines (iPSDCs), This study demonstrated that the introduction of a fusion gene of ubiquitin and tumor-associated antigen (TAA) into iPSDCs enhances TAA processing through the ubiquitin-proteasome system, thereby increasing the antigen-presenting ability of iPSDCs and enhancing their antitumor effects.

Free Research Field

消化器外科学

Academic Significance and Societal Importance of the Research Achievements

iPSDCsワクチン療法はもともと生体内に備わっている抗腫瘍免疫を増強する、アクセルの働きをする。iPSDCsのワクチン効果を増強するメカニズムを解明することで、iPSDCsワクチンを臨床応用に導くことができる。それにより、既存の治療に不応の癌患者さんに対する新たな治療の開発の一助となる。
今後さらにiPSDCsワクチンの抗腫瘍効果増強のための研究を継続し、臨床応用につなげていきたい。

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Published: 2025-01-30  

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