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2023 Fiscal Year Final Research Report

Development of novel cell therapy for autoimmune diseases using iPS cell-derived tolerogenic dendritic cells

Research Project

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Project/Area Number 21K08477
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54020:Connective tissue disease and allergy-related
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

Fujioka Kazuki  京都府立医科大学, 医学部附属病院, 専攻医 (30762174)

Co-Investigator(Kenkyū-buntansha) 松田 修  京都府立医科大学, 医学(系)研究科(研究院), 教授 (00271164)
岸田 綱郎  京都府立医科大学, 医学(系)研究科(研究院), 准教授 (00370205)
藤井 渉  京都府立医科大学, 医学部附属病院, 専攻医 (60755643)
Project Period (FY) 2021-04-01 – 2024-03-31
KeywordsiPS細胞 / 免疫寛容誘導性樹状細胞 / 自己免疫疾患
Outline of Final Research Achievements

Dendritic cells are located upstream of the acquired immune system and play an important role as the initiators of the immune response, but in reality there are multiple subsets, including tolerogenic dendritic cells (tolDCs), which negatively regulate the immune response. In this study, we have successfully induced tolDC-like cells using human iPS cells. Furthermore, we showed that these cells suppress the activity of T cells derived from patients with autoimmune diseases. We believe that these results suggest the possibility of a new cellular immunotherapy for autoimmune diseases.

Free Research Field

免疫学

Academic Significance and Societal Importance of the Research Achievements

近年の自己免疫疾患に対する治療は目覚ましい進歩を遂げた。しかしそれでも既存治療に抵抗性の難治性病態は存在し、新しい治療法の開発が必要なことは論を待たない。本研究ではiPS細胞を用いて免疫細胞を制御する細胞の創出に成功した。iPS細胞は性質を保持したまま無限に増殖するため、こうした細胞を安定的に供給できると考えられる。この結果は免疫疾患に対する新規の細胞治療を創出した可能性を示唆するものであり、大きな社会的意義を有すると考えられる。

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Published: 2025-01-30  

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