Figure 1: Immunohistochemical autophagy-related protein 7 (Atg7) expression in control skin. (a) Atg7 cytoplasmic localization in epidermis. (b) High-power view showed diffuse epidermal Atg7 cytoplasmic staining. (c) Diffuse cytoplasmic Atg7 staining in a hair follicle and eccrine sweat gland ducts. (d) High-power view showed cytoplasmic Atg7 staining with occasional nucleocytoplasmic localization (Atg7 immunohistochemically ×40 for a, ×100 for b and c and ×400 for d).