There hub genes were IFITM1, RTP4, ACSF2, GSTM2, GSTM1, ACOX2, COL4A6, ITGA2, AKR1B1, NPY, CFTR, GPX7, ALDH3A1, CRYZ, ALDH2, MAOB, GSTP1, GPX3, XAF1, and BST2 (Fig. 8), which might play important roles in DNA methylation in prostate cancer patients. The gene discussed is GPX7; the disease is Familial prostate cancer.