To elucidate the role of LHX2 in NSCLC, we knockdowned LHX2 expression in A549 and LTEP-α-2 cells (Figure 5A) by two specific siRNAs, and examined whether knockdown of LHX2 can inhibit NSCLC cell proliferation. The gene discussed is LHX2; the disease is non-small cell lung carcinoma.