CXCL12 and chronic myelogenous leukemia, BCR-ABL1 positive: In our study, VEGF, FOXP3, osteopontin, N-cadherin, CXCL12, CD150, CD48, CD44, PDL-1, and IL-7 were expressed on megakaryocytes but a chi-square test of independence did not show any significant association with CML-CP and CML-AdP.