CXCL8 and infection: Our results suggest that (at 6 h postinfection) the secretion of IL-1β must be important to control the infection regardless of the mycobacterial species present in the media as this cytokine facilitates the recruitment of other innate immune cells to the site of infection and as it induces the production of IL-8 and mediates proliferation, cellular differentiation, and apoptosis [60, 61].