FOXP3 and neoplasm: Our results indicated that 70% of γδT cells in uterus expressed CD25 but did not express Foxp3, indicating CD25+γδT cells in uterus were not Foxp3+γδ Treg cells which were regulatory γδT cells and reported to be present in human PBMC and tumor infiltrating leukocytes(TIL) (38–41).