biostudies-literatureGao HNatural Science Foundation of Shenzhen MunicipalityGuangdong Basic and Applied Basic Research FoundationBasic and Applied Basic Research Foundation of Guangdong ProvinceLonghua District Science and Technology Innovation FundShenzhen Longhua District Science and Technology Innovation Fund871-883https://www.ebi.ac.uk/biostudies/studies/S-EPMC11967271biostudies-literatureUnknown116(4)The development of mesothelin (MSLN) epitope reactive T cells is observed in mice that are immunized with the MSLN vaccine. Engineered T cells expressing MSLN-reactive high-affinity TCR exhibit extraordinary therapeutic effects for invasive pancreatic ductal adenocarcinoma in a mouse model. However, the generation of MSLN-reactive T cells through the introduction of MSLN-deficient thymus and the transplantation of the latter as a cure for cancer treatment have not been tested to date. In the present study, the expression of MSLN was mainly identified in medullary thymic epithelial cells (mTECs) but not in hematopoietic cells, cortical thymic epithelial cells (cTECs), endothelial cells, or fibroblast cells in the thymus. The increasement of activated T cells was observed in MSLN-expressing Cancer scienceTransplantation of the MSLN-deficient Thymus Generates MSLN Epitope Reactive T Cells to Attenuate Tumor Progression.PMC1196727111501A20220923BE5B6B32023A151501017111501A20220923BD5F2912024013JCYJ20220531092617039Zhou LCao MChen PNing LXie XHuang WChen FDeng KGao HChen XSong JWu HfalseTransplantation of the MSLN-deficient Thymus Generates MSLN Epitope Reactive T Cells to Attenuate Tumor Progression.The development of mesothelin (MSLN) epitope reactive T cells is observed in mice that are immunized with the MSLN vaccine. Engineered T cells expressing MSLN-reactive high-affinity TCR exhibit extraordinary therapeutic effects for invasive pancreatic ductal adenocarcinoma in a mouse model. However, the generation of MSLN-reactive T cells through the introduction of MSLN-deficient thymus and the transplantation of the latter as a cure for cancer treatment have not been tested to date. In the present study, the expression of MSLN was mainly identified in medullary thymic epithelial cells (mTECs) but not in hematopoietic cells, cortical thymic epithelial cells (cTECs), endothelial cells, or fibroblast cells in the thymus. The increasement of activated T cells was observed in MSLN-expressing 2025-01-01T00:00:00Z2025 Apr2026-06-02T00:02:54.145Z2025-07-11T03:03:53.928ZS-EPMC119672713985370410.1111/cas.16458