IFN-α specifically activates human GLS1 promoter.
HEK 293T cells were co-transfected with the human GLS1 promoter construct and pRL-SV40. 24 hours later, the cells were treated with either various individual cytokines for another 24 hours (A), IFN-α of varying doses for 24 hours (B), or with 100 U/ml IFN-α for varied time lengths (C). In (A), 100 U/ml IFN-α, 100 ng/ml IFN-γ, 10 ng/ml IL-1β, 10 ng/ml IL-6, 25 ng/ml IL-10, 50 ng/ml TRAIL, or 50 ng/ml TNF-α was used. Luciferase activity in the lysates was measured by luminescence detection. Renilla luciferase was used as internal control to normalize transfection efficiency. The data are representative of three independent experiments and are the means of triplicate samples. #, p<0.05, *, p<0.01, **, p<0.001 in comparison to control.