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. 2016 Jun 27;6:28699. doi: 10.1038/srep28699

Figure 3. Ritonavir does not alter TMEV infection.

Figure 3

(a) Viral load in the brain was assessed by plaque assay in TMEV-infected mice treated with vehicle (VEH) or ritonavir (RIT) at 3 and 7 dpi. There was no difference between treatment groups at either timepoint. n = 5 mice per treatment and per timepoint. (b,c) Ritonavir (10 μg/mL) and the standard calpain inhibitor E64 (10 μg/mL) did not alter TMEV infectivity when added directly to cells during a plaque assay. Images are representative of the n = 6 samples per condition. (d,e) Dose response analysis for ritonavir added directly to cells during TMEV infection showed no effect on infectivity (d; number of plaques) or viral fitness (e; plaque size) even at very high concentrations. n = 6 samples per condition from two independent experiments. Graphs show means ± 95% confidence intervals.