Figure 4.Visualization of cellular hypertrophy. HT-p21 cells
express enhanced green fluorescent protein (GFP) under the constitutive
viral CMV promoter. Expression of GFP per cell is a marker of cellular
hypertrophy. Low cell density - 2 thousand cells were plated in 100 mm dish
and treated with either IPTG or IPTG + Rapamycin.