Flow cytometric analysis of Ki67 (D) and CTLA-4 (E) expressions of Treg cells in the tumor in Cd300afl/fl (n = 9 in D, n = 3 in E) and Cd300afl/fl;ItgaxCre mice (n = 10 in D, n = 4 in E). This evidence concerns the gene CTLA4 and neoplasm.