Altered Expression of Keratin 14 in Lesional Epidermis of Autoimmune Skin Diseases
November 2015
in “
International Journal of Dermatology
”
TLDR Keratin 14 may be an autoantigen in autoimmune skin diseases.
The study investigated the expression of Keratin 14 (K14) in autoimmune skin diseases (ASD) by analyzing skin samples from 58 patients with various ASDs and 17 healthy individuals. It was found that in patients with ASD, K14 expression was retained in suprabasal layers, with a focal loss observed in the basal layer and hair follicles, particularly in conditions with interface dermatitis. Additionally, a dot-like K14 staining was noted in the papillary dermis, especially in cutaneous lupus erythematosus and lichen ruber. Western blot analysis revealed that sera from ASD patients recognized recombinantly expressed K14, suggesting that K14 might act as an autoantigen in these diseases.