MiR‐940 suppresses tumour cell invasion and migration through regulating chemokine CXCR2,12 while miR‐193a decreases proliferation and increased apoptosis of HCC cells as well as improved the effect of sorafenib therapy.13 MiR‐193b increased cisplatin sensitivity of HCC cells and induced apoptosis.14 These previous studies suggest that miR‐139, miR‐940 and miR‐193 play negative roles in HCC development. The gene discussed is CXCR2; the disease is hepatocellular carcinoma.