CD274 and neoplasm: The proliferation of PBLs was in the presence of ASCs and C.M. to 33.5 (±7.9)% and 26.2 (±8.2)% (P > 0.05, Figure 6) on day 3 and reached 58.8 (±8.4)% and 53.3 (±10.4)% (P > 0.05, Figure 6) on day 4, respectively, as compared to PBL/PDL1-BiTE/tumor alone.