The mouse keratinocyte chemoattractant (KC), equivalent to CXCL1 in humans, response is similar to that observed for lung CFU with infection stimulating an increase in this cytokine and treatment with vancomycin or the two higher d-pleurocidin-KR doses causing KC levels to fall to that of the uninfected group (Fig. 5h). Here, CXCL1 is linked to infection.