CXCR2 and leukemia: Agarwal et al. [116] analyzed the changes in bone marrow mesenchymal cell populations induced by leukemia using mouse CML models, revealing that tumor necrosis factor α (TNF-α) enhances LSC maintenance and growth by mediating the CXCL1-CXCR2 signaling axis in the CML bone marrow microenvironment.