STK11 and squamous cell carcinoma: For instance, miR-200c-3p, known to enhance the invasive capacity of human squamous cell carcinoma [55], miR-191-5p, abnormally expressed in several cancers and various other diseases [56], and hsa-miR-93-5p, promoting cancer cell proliferation through inhibiting LKB1 in lung adenocarcinoma [57], were all significantly upregulated in the lesional skin.