Compartmental quantification of potential human immunodeficiency virus type-1 (HIV-1) target cells in human foreskin.

<p>(<b>a</b>) Representative images for inner and outer foreskin tissues processed for immunohistochemistry staining using antibodies (Abs) against CD3, CD68, CD207, CD209 and CD4. The cells were visualized with 3-amino-9-ethylcarbazole peroxidase substrates (red). Bar = 50 µm. (<b>b</b>) The cell densities per mm² of either epidermis or dermis for CD3⁺, CD68⁺, CD207⁺, CD209⁺ and CD4⁺ cells are shown as the means ± SD (<i>n</i> = 13). For each foreskin, parallel staining was performed in the inner and the outer foreskin, and the cells were counted in a minimum of 10 fields. I = Inner, O = Outer (Related-Samples Wilcoxon Signed Rank Test).