CD19⁺and CD19⁻BM ASCs exhibit similar genetic mechanisms for survival. (A) A heat map showing expression of genes with differential expression between 1 of any 2 BM cell populations. Most gene expression appears similar between ASCs and distinct from BM B-cell populations. (B) Scatter plot of 4 caspase-family relative gene expression between BM CD19⁺CD20⁺ B cells (circle), CD19⁺CD20⁻ B cells (square), CD19⁺ ASCs (triangle), and CD19⁻ ASCs (inverted triangle). (C) Relative gene expression of bcl2-family genes on BM cell populations. (D) Relative expression of cyclin genes on sorted BM cell populations. None of the scatter plots showed a significant difference between the CD19⁺ and CD19⁻ ASCs.