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Fig. 5 | Biomarker Research

Fig. 5

From: PD-L1 chimeric costimulatory receptor improves the efficacy of CAR-T cells for PD-L1-positive solid tumors and reduces toxicity in vivo

Fig. 5

Tumor lysis of engineered T cells against cancer cells. a-b Untransduced, HER2-z, HER2-z-PD-L1–28-engineered T cells were used in co-culture with PD-L1+/− A549, NCI-H292, SKOV3 or K562-PD-L1 cells at the indicated E:T ratios for 18 h. The results shown are the mean ± SEM for three healthy donors. * P < 0.05, ** P < 0.01, *** P < 0.001, **** P < 0.0001 with respect to co-culture with CAR-T cells without the PD-L1 CCR, analyzed using a paired Student’s t-test. c-d Untransduced, HER2-z, HER2-z-PD-L1–28-engineered T cells were used in co-culture with PD-L1+ K562 and A549, NCI-H292, or SKOV3 cells at the indicated E:T ratios for 18 h. Each value shown is the mean ± SEM of triplicates

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