The CXCR4 mRNA and its protein CD184 expressions were examined in 41 adult AML patients by TaqMan RQ-PCR and FCM, whereas no significant association was found (p = 0.863 and Spearman r = 0.0278, Additional file 1: Fig. S2 and Table S1). The gene discussed is CXCR4; the disease is acute myeloid leukemia.