YB-1 is expressed in malignant and morphologically immature or anaplastic PCs of patients with MM
| . | Normal mature PCs . | MGUS mature PCs . | Multiple myeloma PCs . | Total PCs . | ||
|---|---|---|---|---|---|---|
| Mature . | Immature . | Anaplastic . | ||||
| Positive YB-1 staining | 0 | 0 | 1 | 8 | 4 | 13 |
| Negative YB-1 staining | 3 | 4 | 21 | 0 | 0 | 28 |
| Total YB-1 staining | 3 | 4 | 22 | 8 | 4 | 41 |
| . | Normal mature PCs . | MGUS mature PCs . | Multiple myeloma PCs . | Total PCs . | ||
|---|---|---|---|---|---|---|
| Mature . | Immature . | Anaplastic . | ||||
| Positive YB-1 staining | 0 | 0 | 1 | 8 | 4 | 13 |
| Negative YB-1 staining | 3 | 4 | 21 | 0 | 0 | 28 |
| Total YB-1 staining | 3 | 4 | 22 | 8 | 4 | 41 |
The table summarizes the data on YB-1 expression status and morphologic phenotype of normal, putative premalignant, or malignant PCs as analyzed by immunohistochemical staining in this study. The numbers of samples obtained from 47 different patients are shown.