Cell invasion assay. Cells were transfected with siRNAs (Mock, LSR1, TP53, LSR1+TP53) and were allowed to grow for 24 h or 48 h in control inserts (three samples per transfection) or in matrigel matrix inserts (three samples per transfection). The mean number of cells passing the inserts was calculated. Error bars indicate +/- one standard error. Asterisks (*) indicate transfections where the number of cells passing the membrane was significantly different from the mock transfected cells.