CXCR4 and Miyoshi myopathy: Robust levels of CXCR4 were found on the MM cell lines (Figure 4A), however, after incubation with BMSCs from patients, this expression was further increased significantly by1.57 ± 0.6 fold (n = 8, P < 0.011, Figure 4A and 4B, total CXCR4).