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Abstract
Abstract Glioblastoma multiforme (GBM) is the most lethal primary brain tumor, necessitating novel therapies. Chimeric antigen receptor (CAR) T-cell therapy has recently shown efficacy against GBM. However, this approach is costly and time-consuming due to its personalized nature. Alternatively, CAR-transduced natural killer (NK) cells offer a potential “off-the-shelf” immunotherapy option, as they do not cause graft-versus-host disease. This study aimed to assess the anti-GBM efficacy of CAR T and NK cells targeting B7-H3, a protein highly expressed in GBM. To achieve this, CAR T cells targeting B7-H3 were developed using known anti-B7-H3 scFv sequences. Additionally, cord blood-derived NK cells were transduced with the B7-H3 CAR. Both types of CAR-modified cells were tested for their anti-GBM activity in vitro. Moreover, their anti-tumor effects were evaluated in an in vivo xenograft model using patient-derived GBM cells. The results demonstrated that both B7-H3 CAR T cells and CAR NK cells exhibited significant cytotoxicity against patient-derived GBM cells in vitro. Furthermore, intracranial injection of these CAR-modified cells into the xenograft model significantly reduced tumor growth. In conclusion, B7-H3 targeted CAR T cells and cord blood-derived CAR NK cells both show potential in eliminating GBM cells, suggesting promising avenues for future GBM treatment strategies.
Published Version
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