To further explore the effects of mTOR signaling on the increase of miR-126 KD on apoptosis in lung cancer cells, two si-mTOR vectors and si-scramble vectors were transfected in A549 cells, which indicated that two si-mTOR vectors significantly decreased mRNA expression of PI3KR2 in A549 cells (∗∗P < 0.01, ∗∗∗P < 0.001, n = 4, Figure 6(a)). Here, MTOR is linked to lung cancer.