CLDN18.2 CAR-derived Extracellular Vesicle Immunotherapy Improves Outcome in Murine Pancreatic Cancer.

ABSTRACT: Pancreatic ductal adenocarcinoma (PDAC) remains one of the most lethal malignancies, with no current effective treatment options. Chimeric antigen receptor (CAR) T cell therapy represents a powerful immunotherapeutic approach but faces major limitations in PDAC due to complex manufacturing and reduces efficacy within the highly immunosuppressive tumor microenvironment (TME). Small extracellular vesicles (sEVs) derived from CAR-T cells present a novel strategy to address these challenges. Here, CLDN18.2 CAR-T cells are used to generate CAR-sEVs via ultracentrifugation. The purified CAR-sEVs exhibit typical sEV size and morphology, containing established sEV markers, and carry functional CAR proteins along with cytotoxic molecules such as granzyme B. In vitro, CAR-sEVs displays potent cytoto

SUBMITTER: Qing Y 

PROVIDER: S-EPMC12184078 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature