IL-31 Is Overexpressed in Lichen Planus but Its Level Does Not Correlate with Pruritus Severity

Figure 1

Expression of IL-31 was found in the entire epidermis of lichen planus lesions ((a)–(c): patient 1, (d)–(f): patient 2) in comparison to no expression in healthy skin ((g)–(i): volunteer 1, (j)-(k): volunteer 2) ((a), (d), and (g): hematoxylin/eosin staining of fresh-frozen section, (b), (e), (h), and (j): anti-IL-31 immunostaining, and (c), (f), (i), and (k): DAPI staining, original magnification ×100).

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