Immunostaining for inflammatory cells in chest and ear skin tumor sections.

<p>CD4⁺ T cells (<b>A</b>) and Mac-3⁺ macrophages (<b>B</b>) in K14-HPV16 transgenic <i>Cstc^+/+</i> and <i>Cstc^−/−</i> mouse chest and ear skin tissue sections. Number of mice per group is indicated in each bar. Representative sections are shown to the right. Both dermis and epidermis (ED) are indicated. Data are mean ± SEM. Scale bar: 100 µm.