Yin et al. BMC Genomics 2010, 11:612 http://www.biomedcentral.com/1471-2164/11/612 Page 13 of 18 Figure 6 Effect of [BF/S+L/Ep] treatment (24 h) on the expression of CCR4, CCR5 and CCR7 proteins in BMDCs treated with or without LPS stimulation. CCR5 and CCR7 are expressed as cell surface markers on DC at distinct differentiation stages and are known to play important roles in DC mobility. CCR4+CCR5+ and CCR4+CCR7+ cells are considered as immature and mature DC populations, respectively. Populations of them were compared by flow cytometry analysis.