Fig 5.
The IIL UbD promoter was repressed by p53 protein. IFNg, but not TNFa, was able to induce the activity of the UbD promoter (D1 promoter) when the p53 consensus sequences were absent. However, IFNg is not able to induce the activity of D2 and D3 shorter UbD promoter, indicating the presence of an ISRE sequence in the IIL UbD promoter. (TNFa treatment: D1 vs. IIL p<0.001; IFNg treatment: D1 vs. IIL p=0.151; D1 vs. D1+IFNg p=0.005; TNFa+IFNg treatment: D1 vs. IIL p<0.001; D1 vs. D1+IFNg+TNFa p<0.001)