FIGURE 2.
HAMP upregulation is correlated with HAMP gene hypomethylation in ccRCC tissues. (A,B) Spearman correlation coefficient was analyzed between HAMP gene promoter methylation and HAMP expression [RNA-seq V2 RSEM, log2 (value +1)] using the TCGA PanCancer RNA-seq dataset derived from Illumina Infinium Human Methylation BeadChips HM27 (217 ccRCC cases) and HM450 (319 ccRCC cases) platforms. (C) Spearman correlation coefficient was analyzed between HAMP gene methylation and HAMP expression. The probe cg02131995 covers the region of TSS+1297. TSS, transcription start site. (D,E) HAMP promoter methylation levels were compared quantitatively between normal kidney and ccRCC tumor tissues (D) and lymph node invasion status (E). The asterisks indicate a statistical significance (Student t-test, * p < 0.05, ** p < 0.01).