Characteristics of CD49d expression. (A-C) Flow cytometric dot-plots of CD19-PerCP-Cy5.5 vs CD49d-PE expression on PB samples of 3 representative CLL cases; the reported percent values of CD49d-expressing cells are calculated on the gated CD5⁺CD19⁺ CLL population. T cells (T), monocytes (M), granulocytes (G), and CLL cells (CLL) are indicated in dot-plots. (D) Flow cytometric dot-plot of the physical parameter side-scatter (SSC) vs CD49d-PE expression; T cells, monocytes, granulocytes, and CLL cells are indicated as above; the dot-plot corresponds to CLL reported in panel B. (E) Stacked strip-plot of ordered CD49d percent expression values. Reported percent values refer to the amount of cases expressing low (< 25%), intermediate (25%-75%), or high (> 75%) percentages of CD49d.