Table 2 Degree of CD28 expression in the CD4+ T-lymphocyte subset in different areas of the sentinel nodes from 21 breast cancer patients (numbers are frequencies).
Expression of CD28 on CD4+ | |||
|---|---|---|---|
High | Moderate | Low | |
Primary follicles | 7 | 5 | 8 |
Secondary follicles | 1 | 3 | 12 |
Paracortex | 0 | 5 | 15 |