Interestingly, the anti‐metastatic function of KLF9 in HCC was likely due to its role in suppressing the activation of EMT, while KLF9 was, in turn, repressed by Slug, an important factor of the EMT programme, suggesting a negative feedback loop between KLF9 and the EMT program. The gene discussed is SNAI2; the disease is hepatocellular carcinoma.