These markers identified for tumor-associated neutrophils included those associated with inflammation, such as anti-inflammatory pro-tumor markers (Ccl17, Il10) and pro-inflammatory anti-tumor markers (Tnfα, Icam1, CD40, and IFNɣR1); markers associated with apoptosis or NETosis (Fas and Cd274 (PD-L1), Sirt1); pro-angiogenic and regenerative markers (Vegfa, Vegfr1, Hgf, and Mmp9); and participants of signaling pathways (Ern1 and Stat3). This evidence concerns the gene MMP9 and neoplasm.