Hairless mice manifest enhanced cutaneous inflammation compared with haired mice. A: H&E staining shows inflammatory cell infiltration in control skin, UVB-irradiated skin, and BCCs of hairless and haired mice. B: Immunofluorescence staining of inflammatory cell surface markers CD49b, CD3, CD4, CD11b, and GR-1 in the control (Ctrl) skin, UVB-exposed skin, and BCCs of hairless (green circles) and haired (red circles) mice. White, green, and red arrowheads indicate individual staining; yellow arrowheads, co-staining; blue ovals, CD49b cells; green rectangles, CD3/CD4 cells; orange rectangles, CD11b/Gr1 cells. Boxes show enlarged areas of images.