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. Author manuscript; available in PMC: 2014 Mar 15.
Published in final edited form as: Cancer Res. 2013 Jan 3;73(6):1733–1741. doi: 10.1158/0008-5472.CAN-12-2384

Figure 5. Increased expression of IFN-γ and CD8 mRNA in PD-L1(+) vs. (-) tonsil cancers.

Figure 5

IFN-γ, CD8, CD4, and GAPDH were evaluated by quantitative RT-PCR in both PD-L1(+) (n=3) and PD-L1(-) (n=6) tumors . Error bars represent standard error of the mean. Cycle threshold is on a log2 scale; lower numbers indicate greater expression. *p=0.003. **p=0.002. Results are representative of two separate experiments.