Different cells, like leukocytes, fibroblasts, and vascular endothelial cells together form a tumor microenvironment. The leukocytes interact with tumor cells to influence the development of tumors. In general, monocytes/macrophages can be polarized to M1 or M2 macrophages, that is, macrophages can differentiate into a classically or alternatively activated phenotype. Classically activated macrophages, also known asRead more about CHANGING TUMOR-ASSOCIATED CELLS[…]