Regulation Of Epidermal Ferritin Expression Influences Systemic Iron Homeostasis

This study investigates the role of keratinocytes and the epidermis in systemic iron homeostasis, demonstrating that keratinocytes can adjust ferritin expression in response to iron levels, which is crucial for iron storage. In mice, systemic iron overload increased epidermal iron content and ferritin levels, linking epidermal iron storage to systemic regulation. The study also found that topical inflammation could lead to iron deficiency by affecting liver hepcidin levels. These findings highlight the skin's significant role in managing iron levels, with implications for conditions like telogen effluvium and other skin-related diseases. The research suggests that skin inflammation can influence systemic iron levels, potentially contributing to anemia in skin diseases, and emphasizes reconsidering anemia's etiology in dermatologic conditions, suggesting alternative treatments like oral iron supplementation.