CD24 and cancer: CD24 is a cell surface heavily glycosylated glycosylphosphatidylinositol-anchored protein not only expressed in many cancers but also showed in adaptive immune responses.28CD24 is a redundant costimulatory molecule expressed on variety of antigen-presenting cells, including DCs and has been recognized as general DC marker for some subsets of mouse DCs.4Previous studies have reported that CD24 expression determines antigen presenting ability of DCs29and CD24 expression on DCs may also influence the T cell differentiation and activation.30, 31