期刊
JOURNAL OF INVESTIGATIVE DERMATOLOGY
卷 131, 期 6, 页码 1272-1279出版社
ELSEVIER SCIENCE INC
DOI: 10.1038/jid.2011.24
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资金
- NIAMS [RO1 AR41256]
Filaggrin (FLG), loricrin (LOR), and involucrin are important epidermal barrier proteins. As psoriasis is characterized by overexpression of tumor necrosis factor-alpha (TNF-alpha) and impaired skin barrier, we investigated the expression of skin barrier proteins in psoriasis patients and whether their expression was modulated by TNF-alpha. The expression of FLG and LOR was found to be decreased in lesional and non-lesional skin of psoriasis patients. A correlation was found between the expression of TNF-alpha and epidermal barrier proteins in psoriasis. TNF-alpha was found to modulate the expression of FLG and LOR via a c-Jun N-terminal kinase-dependent pathway. Importantly, we report that clinical treatment of psoriasis patients with a TNF-alpha antagonist results in significant enhancement of epidermal barrier protein expression. Our current study suggests that TNF inhibits barrier protein expression, and TNF-alpha antagonists may contribute to clinical improvement in patients with psoriasis by improving barrier protein expression.
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