Fig. 1

Relative expression of miR-30d in CSCCs. qPCR assay was carried out as described under Materials and Methods section, and the results were obtained from the indicated group of samples. a Scatterplot illustrated the relative expression level of miR-30d as a ratio of miR-30d to U6 in all the CSCC samples compared with ANTs. b Scatterplot illustrated the relative expression of miR-30d as a ratio of CSCC to paired ANT in the CSCCs at different stages. c Scatterplot illustrated the relative expression of miR-30d as a ratio of CSCC to paired ANT in the primary tumors and lymph node metastases. d Kaplan-Meier and log-rank analysis (n = 136). The 2 groups were divided according to the expression levels of miR-30d (over-expression group, T/N ≥ 2, n = 57; mid or low expression group, n = 79) and analyzed (P = 0.0009; log-rank test) to determine its association with biochemical recurrence in CSCC