Fig. 1

Flow cytometry gating strategy for chemokine receptor expression on T lymphocytes. a–c Representative plots show the gating strategy to define viable CD4⁺ and CD8⁺ T lymphocytes. d Representative flow cytometry histograms of the chemokine receptors CCR5, CXCR3, CXCR4, CXCR6, and CCR10 on CD4⁺ and CD8⁺ lymphocytes isolated from unaffected mucosa. Shaded histograms indicate the specific antibody and open histograms the isotype control