This was not seen for cells expressing CD15+MPO− (CD15+; non-activated or immature neutrophils; Fig. 2A-B) (PFS CD15+; P = 0.493 and OS CD15+ TC; P = 0.463), or CD15+ expression in malignant tumor cells (CD15+ TC; Fig. 2A-B) (PFS CD15+ TC; P = 0.740 and OS CD15+ TC; P = 0.151). This evidence concerns the gene MPO and cancer.