Figure 2From: Stable luciferase expression does not alter immunologic or in vivo growth properties of GL261 murine glioma cells Luciferase expression does not affect proliferation Luciferase expression by GL261.luc cells does not cause a difference in proliferation, in vitro , as demonstrated by ATP-based viability assay. The graph shows fold increase, relative to day 0, as determined by comparing the luminescence at the specified time point to the luminescence at time 0.Back to article page