BIRC5 and cancer: The mean plasma Survivin levels were significantly different between the healthy control subjects (61.5 pg/ml in controls [n = 10]) and the different cancer patient groups (Gleason 6 = 401.7 pg/ml [n = 10], Gleason 9 = 375.2 pg/ml [n = 10], and subjects resistant to the the chemotherapy agent Taxotere = 410 pg/ml [n = 8]; P<0.05 for each comparison vs. control).