Mock infection and treatments of cells with non-oncolytic Ad-derived vectors either without a transgene (Ad.Empty), or vectors able to transduce the cells either with an shRNA against GFP (Ad.shGFP), an shRNA against HDAC1 (Ad.shHDAC1) or TP73 (Ad.p73) were used as expression controls (Figure 1B, upper panel). Here, HDAC1 is linked to infection.