CXCL12 and leukemia: Deniz IA et al. found that bone marrow mesenchymal stromal cell-associated migrasomes attracted leukemia cells (KG-1a) by releasing chemoattractants such as SDF-1, and the mechanism was involved in the selective localization of KG-1a cells by mediating the CXCR4-SDF-1 axis (Deniz et al., 2023).