The application discloses a kind of compositions for enhancing
chimeric antigen receptor T cell function and preparation method and application thereof, belong to
cell immunotherapy technical field.The composition described in the application comprises subcytotoxic concentration of
taxane compound and pharmaceutically acceptable carrier, wherein the concentration of
taxane compound is preferably 1-50 nM.Embodiment results show that the composition is used for pretreatment CAR-
T cell, induces it to enter a specific state of metabolic active and
effect function enhancement.Processed CAR-
T cell shows that the proportion of memory
phenotype increases, the expression of exhaustion marker decreases, the expression of
cytotoxicity effector molecule is up-regulated, and is accompanied by the change of specific
extracellular vesicle secretion activity.The application also provides a preparation method of function-enhanced CAR-T
cell;The scheme provides a non-genetic strategy, which can improve the persistence and antitumor effect of CAR-T
cell in
solid tumor treatment, and has important clinical application value.