The average concentrations of the three biomarkers in the serum of BC patients were 1714.3 ± 6271.4 pg/mL of soluble APRIL, 49.4 ± 32.9 pg/mL of soluble CXCL13, and 464.7 ± 359.1 pg/mL of soluble VEGF-A. The gene discussed is CXCL13; the disease is breast cancer.