CXCL10 and acute lymphoblastic leukemia: In line, coculturing human T-ALL cell lines or primary cells with primary human leptomeningeal cells (LeC), leptomeningeal pericytes (Per), and dural fibroblasts (DuF), but not dural meningeal endothelial (DuEC), and HUVEC cells, induced secretion of CXCL10 via ELISA (Figure 5, M–P, and Supplemental Figure 5, P–U).