Figure 5From: A novel method for producing target cells and assessing cytotoxic T lymphocyte activity in outbred hostsEnv-specific CTL activity in chronically FIV infected cats before and after boosting with a DNA immunogen. The effector PBMCs were obtained at the indicated times and used at E:T ratio 10:1 after ex vivo restimulation with Env+GFP+ fibroblasts. The dotted line indicates the cut-off value.Back to article page