ACKR3 and acute lymphoblastic leukemia: An initial study showed a high expression of CXCR7 in human T-lymphocytes [21], supported by our data of high CXCR7 gene expression in bone marrow and lymphoblasts of T-ALL patients, T-lymphocytes in peripheral blood of healthy donors and CXCR7 protein in T-acute lymphoid leukemia cell lines.