Fig. 7.

PD-L1-ex increased TMZ-resistance in TS-GBM cells in vivo. The xenograft tumor-bearing mice models were established by using the a LN229 cells, b U251 cells and c U87 cells, and tumor weight was obtained to reflect tumorigenesis of the above cells in mice models. (Note: “Con” indicated “Control”, “T” suggested “TMZ” and “P” represented “PD-L1-ex”). Each experiment had at least 3 repetitions, and *P < 0.05