STAT3 and non-small cell lung carcinoma: Moreover, CuB induces the apoptosis of NSCLC cells by inhibiting the long noncoding RNA Xinactive-specific transcript (lncRNA-XIST)/miR-let-7c/IL-6/signal transducer and activator of transcription 3 (STAT3) axis and suppressing the mitogen-activated protein kinases (MAPK) and PI3K pathways [77, 78].