Representative selection of highly or differentially expressed genes in bone marrow and circulating CD34⁺ cells.

Results of the gene expression analysis of 8 samples of BM-CD34⁺ cells (left) and 10 samples of PB-CD34⁺ cells (right) are displayed. Relative gene expression (normalized to median) is color coded. The color code can be found at the bottom of the figure. The mean of the 8 bone marrow–derived samples (BM mean), the mean of the 10 peripheral blood–derived samples (PB mean), and the ratio of those 2 mean values (BM/PB ratio) are indicated for each gene. Genes that are expressed at a significantly higher level in BM-CD34⁺ cells than in PB-CD34⁺ cells are marked in red. Genes with lower expression in BM-CD34⁺ cells are marked in green.P values resulting from the Mann-Whitney U test are also indicated for all significantly differentially expressed genes.