Figure 1From: Expansion of CD4+CD25+helper T cells without regulatory function in smoking and COPDFlow 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+CD127dim population.Back to article page