As we discussed previously, they seem to indirectly affect the cytolysis of local antigenic presenting cells. So why would we want to lyce, for example, a macrophage? Well, if a macrophage eats too many of these pathogens it will essentially stop functioning correctly. And at that point we essentially want to lyse that particular cell. Now these cytokines and these gamma delta T cells are also believed to regulate the influx of white blood cells to that specific area. So if this epithelial cell is infected, we want to bring more white blood cells to this area.