Figure 1.

Flow cytometry analysis of CD127 expression on BAL CD4⁺ T cells. Firstly, lymphocytes were gated in FSC and SSC. Secondly, CD4⁺ cells were gated in the histogram. CD25 and CD127 expression on the gated CD4 cells were analyzed in a dot plot. The grey area indicates CD25⁺CD127^dim population.