* Via physical contacts with cancer cells and through secreted factors, theyincreased CSC proportions, as well as EMT and migration.* The activities of the myeloid cells were mediated by or connected to solublefactors such as TNFα, IL-6 and ELR+ CXC chemokines (e.g., CXCL8 and CXCL1). This evidence concerns the gene CXCL1 and cancer.