Research Article

Combination Immunotherapy with 4-1BBL and CTLA-4 Blockade for the Treatment of Prostate Cancer

Figure 3

Cytotoxicity assay. Spleens were harvested from mice rejecting RM-1 cells and restimulated in vitro with MMC-treated RM-1 cells. 7 d later, cells were collected and purified by Ficoll-Histopaque gradient centrifugation as effector cells for detecting specific cytotoxicity against target cells. The data are expressed as means ± SD of three replicates ( ).
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