Immune cells from 4T1 tumours of mice treated with TNFα‐CSG or CSG were separated by FACS into CD45+/CD11b− and CD45+/CD11b+ cells, and expression of various proteases known to degrade ECM (Sorokin, 2010; Sevenich & Joyce, 2014) was analysed. Here, TNF is linked to neoplasm.