Leukocyte subpopulations in the skin and draining lymph nodes in SADBE-treated AA mice: (a) SkIL of healthy, AA and SADBE-treated AA mice were stained with anti-CD4, anti-CD8, anti-CD11b and an antibody that recognizes NK cells; (b) draining LNC and (c) SkIL of healthy, AA and SADBE-treated AA mice were stained with anti-CD40, anti-CD80, anti-CD86, anti-CD25, anti-CD28, anti-CD152 and anti-CD154. The percentage of stained cells (mean ± s.d. of four independently performed experiments) is shown. Significant differences (P < 0·01) are indicated by an asterisk.