{"title":"Human iPSC-derived CD4+ Treg-like cells engineered with chimeric antigen receptors control GvHD in a xenograft model","authors":"Hisashi Yano, Keiko Koga, Takayuki Sato, Tokuyuki Shinohara, Shoichi Iriguchi, Atsushi Matsuda, Kazuki Nakazono, Maki Shioiri, Yasuyuki Miyake, Yoshiaki Kassai, Hitoshi Kiyoi, Shin Kaneko","doi":"10.1016/j.stem.2024.05.004","DOIUrl":null,"url":null,"abstract":"<p>CD4<sup>+</sup> T cells induced from human iPSCs (iCD4<sup>+</sup> T cells) offer a therapeutic opportunity for overcoming immune pathologies arising from hematopoietic stem cell transplantation. However, most iCD4<sup>+</sup> T cells are conventional helper T cells, which secrete inflammatory cytokines. We induced high-level expression of FOXP3, a master transcription factor of regulatory T cells, in iCD4<sup>+</sup> T cells. Human iPSC-derived, FOXP3-induced CD4<sup>+</sup> T (iCD4<sup>+</sup> Treg-like) cells did not secrete inflammatory cytokines upon activation. Moreover, they showed demethylation of the Treg-specific demethylation region, suggesting successful conversion to immunosuppressive iCD4<sup>+</sup> Treg-like cells. We further assessed these iCD4<sup>+</sup> Treg-like cells for CAR-mediated immunosuppressive ability. HLA-A2 CAR-transduced iCD4<sup>+</sup> Treg-like cells inhibited CD8<sup>+</sup> cytotoxic T cell (CTL) division in a mixed lymphocyte reaction assay with A2<sup>+</sup> allogeneic CTLs and suppressed xenogeneic graft-versus-host disease (GVHD) in NSG mice treated with A2<sup>+</sup> human PBMCs. In most cases, these cells suppressed the xenogeneic GvHD progression as much as natural CD25<sup>+</sup>CD127<sup>−</sup> Tregs did.</p>","PeriodicalId":9665,"journal":{"name":"Cell stem cell","volume":"34 1","pages":""},"PeriodicalIF":19.8000,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cell stem cell","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1016/j.stem.2024.05.004","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CELL & TISSUE ENGINEERING","Score":null,"Total":0}
引用次数: 0
Abstract
CD4+ T cells induced from human iPSCs (iCD4+ T cells) offer a therapeutic opportunity for overcoming immune pathologies arising from hematopoietic stem cell transplantation. However, most iCD4+ T cells are conventional helper T cells, which secrete inflammatory cytokines. We induced high-level expression of FOXP3, a master transcription factor of regulatory T cells, in iCD4+ T cells. Human iPSC-derived, FOXP3-induced CD4+ T (iCD4+ Treg-like) cells did not secrete inflammatory cytokines upon activation. Moreover, they showed demethylation of the Treg-specific demethylation region, suggesting successful conversion to immunosuppressive iCD4+ Treg-like cells. We further assessed these iCD4+ Treg-like cells for CAR-mediated immunosuppressive ability. HLA-A2 CAR-transduced iCD4+ Treg-like cells inhibited CD8+ cytotoxic T cell (CTL) division in a mixed lymphocyte reaction assay with A2+ allogeneic CTLs and suppressed xenogeneic graft-versus-host disease (GVHD) in NSG mice treated with A2+ human PBMCs. In most cases, these cells suppressed the xenogeneic GvHD progression as much as natural CD25+CD127− Tregs did.
期刊介绍:
Cell Stem Cell is a comprehensive journal covering the entire spectrum of stem cell biology. It encompasses various topics, including embryonic stem cells, pluripotency, germline stem cells, tissue-specific stem cells, differentiation, epigenetics, genomics, cancer stem cells, stem cell niches, disease models, nuclear transfer technology, bioengineering, drug discovery, in vivo imaging, therapeutic applications, regenerative medicine, clinical insights, research policies, ethical considerations, and technical innovations. The journal welcomes studies from any model system providing insights into stem cell biology, with a focus on human stem cells. It publishes research reports of significant importance, along with review and analysis articles covering diverse aspects of stem cell research.