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Lymphocyte Isolation from Human Skin for Phenotypic Analysis and Ex Vivo Cell Culture
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IL-17F regulates psoriasis-associated genes through IκBζ
Trine Bertelsen1, Christine Ljungberg1, Rasmus Boye Kjellerup1
1Department of Dermatology, Aarhus University Hospital, Aarhus C, Denmark.
Experimental Dermatology
|August 31, 2016
Summary
Interleukin-17F (IL-17F) upregulates IκBζ in skin cells, a key factor in psoriasis development. Targeting IκBζ offers a new therapeutic strategy for psoriasis and related inflammatory diseases.
Area of Science:
- Dermatology
- Immunology
- Molecular Biology
Background:
- Psoriasis is a chronic inflammatory skin disease.
- IL-17A and IL-17F are implicated in psoriasis pathogenesis.
- IκBζ is a known regulator of IL-17A effects in psoriasis.
Purpose of the Study:
- To investigate the role of IL-17F in regulating IκBζ expression.
- To determine if IL-17F influences psoriasis-associated genes via IκBζ in keratinocytes.
Main Methods:
- Human keratinocyte cultures stimulated with IL-17F.
- siRNA-mediated silencing of IκBζ.
- Analysis of gene and protein expression (DEFB4/hBD2, S100A7, CCL20, IL-8, CHI3L1).
- Inhibition of p38 MAPK and NF-κB signaling pathways.
Main Results:
- IL-17F stimulation increased IκBζ mRNA and protein levels in keratinocytes.
- IκBζ silencing reduced IL-17F-induced expression of psoriasis-associated genes.
- IL-17F-induced IκBζ expression is dependent on p38 MAPK and NF-κB pathways.
Conclusions:
- IκBζ is a critical regulator of IL-17F-driven effects in psoriasis.
- Targeting IκBζ presents a potential therapeutic avenue for psoriasis.
- This approach may also benefit other IL-17-related inflammatory diseases.
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