Figure 1. MiR-557 down-regulation in HCC predicts poor prognosis and metastasis of HCC. (A) Relative expression of miR-557 in HCC tissues and adjacent non-tumor tissues of GEO database (GSE108724). (B) Relative miR-557 expression in HCC tissues and adjacent non-tumor tissues. (C) Relative expression of miR-557 in primary HCC tissues and pulmonary metastasis of HCC tissues of GEO database (GSE26323). (D) Relative miR-557 expression in primary HCC tissues and paired pulmonary metastasis of HCC tissues. (E) The relationship between the expression level of miR-557 and overall survival of HCC patients. (F) The relationship between the expression level of miR-557 and disease-free survival of HCC patients. (*P<0.05, **P<0.01).