CXCR1 and CXCR2 are expressed on human neutrophils and lymphocytes but not on human eosinophils. Flow cytometric analysis of human neutrophils, lymphocytes, and eosinophils. Cells were double-stained with the anti-CXCR1 or anti-CXCR2 MoAbs, respectively, and anti-CD3, CD4, CD8, and CD19 MoAbs for lymphocyte subsets; anti-CD16 MoAb for neutrophils; or anti-CD52 MoAb for eosinophils, respectively. One representative experiment of eight performed is shown.