CCL5 and neoplasm: In addition, glial cells also produceMCP-1, MIP-2, and RANTES (all of which were increased after fluoxetine treatment)that could promote metastasis indirectly by stimulating infiltration into thebrain of peripheral cells with pro-tumor activities such as myeloid-derivedsuppressor cells (MDSC), tumor-associated macrophages (TAM), and tumor-associatedneutrophils (TAN).