Phenotype of γδ T cells emerging in recipients of haplo-HSCT. Flow cytometry analyses of γδ (gated in CD3⁺ T cells) (A) and of Vδ1, Vδ2, and Vδ1⁻Vδ2⁻ cells (gated in CD3⁺γδ⁺ T cells) (B) 1, 3, and 6 months after HSCT. (C) Percentage of Vδ1, Vδ2, and Vδ1⁻Vδ2⁻ subsets was evaluated by flow cytometry in transplanted patients 1 month after HSCT, and compared with those found either in their donors or in healthy adults. Comparative analyses of γδ T cells (D) and Vδ1, Vδ2, and Vδ1⁻Vδ2⁻ subsets (E) in patients transplanted with either αβ/CD19 depleted grafts or with CD34⁺ positively selected cells at 3 and 6 months after transplantation. Pooled results are shown. Whisker lines represent highest and lowest values; horizontal lines represent median values.