Differential expression of mHAg-encoding genes in pulmonary alveolar epithelial and leukemic cells. Real-time PCR analysis of P2RX7, DPH1, and DDX3Y expression in male EBV-LCL, human male pulmonary alveolar epithelial cells (HPAEpiCs), and the male-derived KG1 AML cell line was performed. The expression level of each gene was computed using the standard curve method, and the expression level in HPAEpiCs and KG1 is referenced to that observed in male EBV-LCL.