As shown in Figure 1C, the prostate cancer-specific progression-free survival (b-PFS) rate of patients with low TLR9 expression (N = 49) was significantly larger than that of patients with high TLR9 expression (N = 29), suggesting the high expression of TLR9 in prostate cancer indicates poor prognosis. The gene discussed is TLR9; the disease is Familial prostate cancer.