CAR T Cell Membrane Camouflaged Nanocatalyst Augments CAR T Cell Therapy Efficacy Against Solid Tumor.
Small
; 20(37): e2401299, 2024 Sep.
Article
en En
| MEDLINE
| ID: mdl-38746996
ABSTRACT
The immunosuppressive tumor microenvironment (TME) reduces the chimeric antigen receptor (CAR) T-cell therapy against solid tumors. Here, a CAR T cell membrane-camouflaged nanocatalyst (ACSP@TCM) is prepared to augment CAR T cell therapy efficacy against solid tumors. ACSP@TCM is prepared by encapsulating core/shell Au/Cu2- xSe and 3-bromopyruvate with a CAR T cell membrane. It is demonstrated that the CAR T cell membrane camouflaging has much better-targeting effect than the homologous tumors cell membrane camouflaging. ACSP@TCM has an appealing synergistic chemodynamic/photothermal therapy (CDT/PTT) effect that can induce the immunogenic cell death (ICD) of NALM 6 cells. Moreover, 3-bromopyruvate can inhibit the efflux of lactic acid by inhibiting the glycolysis process, regulating the acidity of TME, and providing a more favorable environment for the survival of CAR T cells. In addition, the photoacoustic (PA) imaging and computed tomography (CT) imaging performance can guide the ACSP@TCM-mediated tumor therapy. The results demonstrated that the ACSP@TCM significantly enhanced the CAR T cell therapy efficacy against NALM 6 solid tumor mass, and completely eliminated tumors. This work provides an effective tumor strategy for CAR T cell therapy in solid tumors.
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Base de datos:
MEDLINE
Asunto principal:
Membrana Celular
/
Inmunoterapia Adoptiva
/
Receptores Quiméricos de Antígenos
Idioma:
En
Revista:
Small
Asunto de la revista:
ENGENHARIA BIOMEDICA
Año:
2024
Tipo del documento:
Article