The importance of CXCR4 for migration and adhesion in CML cells has already been demonstrated.28 So far, LASP1 involvement in migratory processes has only been demonstrated for solid tumours.11 Therefore, we aimed to characterize the role of CXCR4 and LASP1 in CML cell migration using the different K562 cell lines (Figure S4). This evidence concerns the gene CXCR4 and chronic myelogenous leukemia, BCR-ABL1 positive.