IL17A and infection: IL-17 attracts neutrophils and monocytes to the infected tissue and induces production of cytokines like G-CSF and IL-6 that promote innate inflammation and chemokines such as the C-X-C motif chemokine ligand (CXCL) 1, CXCL2 and CXCL10, which recruit myeloid cells to the site of infection.