MME and neoplasm: We performed a mini-bulk (500 cells) proteomic analysis of circulating mature CD10 + , immature CD10- low density neutrophils (LDN), normal density neutrophils (NDNs) as well as GBM tumour associated neutrophils (TAN), finding that TANs much more closely resemble mature CD10+ neutrophil populations, but with increased mitochondrial content.