Figure 2.

Glucocorticoid (GC)-priming effect on transfection efficiency. (a) Cells primed with 1.2E⁻⁷ mol/l dexamethasone (DEX) show a minimum threefold increase in the number of cells expressing green fluorescent protein (GFP) compared to BM alone or the EtOH controls as evaluated by flow cytometry. Error bars represent standard error of the mean for triplicate wells collected on duplicate days. (b) Bright field and fluorescence images of human mesenchymal stem cells expressing GFP, either primed with 1.2E⁻⁷ mol/l DEX or an equivalent volume of EtOH.