Figure 6From: Anti-PD-1 antibody significantly increases therapeutic efficacy of Listeria monocytogenes (Lm)- LLO immunotherapyLm-LLO infection upregulates PD-L1 expression on monocyte-derived human DC surface. A. Fold increase of PD-L1 expression on human DC after treatment with different concentrations of Lm-LLO over non-treated control. B. Representative histogram of PD-L1 expression on human DC treated with different concentrations of Lm-LLO. Similar results were obtained from three independent experiments.Back to article page