SMAD4 and prostate neoplasm: Compared to the primary prostate tumors, mRNA level of NFKBIA (Figure 8A), DUSP6 (Figure 8B), PLCB3 (Figure 8C), and SMAD4 (Figure 8D) are lower in metastatic prostate tumors, while mRNA level of RELA (Figure 8E) and SNAI1 (Figure 8F) exhibit opposite trend.