In addition to AMPs, stressed keratinocytes releasechemokinesand cytokines to recruit immune cells, such as resident neutrophils,to the site of infection.3 Stimulationof infected keratinocytes with CD4-PP revealed a significant increasein the expression of the neutrophil recruiter CXCL8, encoding for IL8 (Figures 2G,I). Here, CD4 is linked to infection.