CCL11 was shown to increase the CD4+CD25+Foxp3+ Tregcells proportion, CCR3 and Foxp3 expression, and the release of IL-2 andtransforming growth factor (TGF) β1 in non-tumor-associated CD4+ T cells through the STAT5 signalingpathway [60]. Here, CD4 is linked to neoplasm.