The immunohistochemical detection of MPO-positive neutrophilic granulocytes revealed a decreased number of inflammatory cells in the tumor tissue following ECT treatment compared to the rEP and BLM group (ECT 7.80 ± 2.6 cells per HPF; rEP 14.9 ± 1.4 per HPF; and BLM 18.6 ± 1.9 per HPF). This evidence concerns the gene MPO and neoplasm.