CCR4 and sarcoidosis: In these co-culture experiments naïve CD4+ T cells differentiated into CD25+CD127lowFoxp3+ regulatory T cells, CD45RO+ memory T cells, CXCR3+ Th1 or CCR4+ Th2 cells, whereby we did not observe significant differences between co-cultures with mDCs from sarcoidosis patients and with mDCs from healthy controls (Figure 3B).