CASP3 and lung cancer: Biogenesis of NSCLC, the expression of miR-126 in lung cancer needle biopsies and paracancerous tissues, two miR-126 vectors miR-126 vectors (#1 and #2), and a control vector (siRNA-scramble) were transfected in A549 cells, which indicated that both miR-126 vectors significantly increased the expression of the caspase 3 in A549 cells (∗∗P < 0.01, n = 4, Figure 2(a)).