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Golob-Schwarzl, N; Pilic, J; Benezeder, T; Bordag, N; Painsi, C; Wolf, P.
Eukaryotic Initiation Factor 4E (eIF4E) as a Target of Anti-Psoriatic Treatment.
J Invest Dermatol. 2024; 144(3):500-508.e3 Doi: 10.1016/j.jid.2022.12.028
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Führende Autor*innen der Med Uni Graz
Golob-Schwarzl Nicole
Wolf Peter
Co-Autor*innen der Med Uni Graz
Benezeder Theresa Helena
Bordag Natalie
Painsi Clemens
Pilic Johannes
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Abstract:
Eukaryotic initiation factor 4E (eIF4E) has been known to play a critical role in the regulation of gene expression and essential cellular processes, such as proliferation, apoptosis and differentiation. In this study, we explored its role in the pathophysiology of psoriasis. The inhibition of eIF4E by small interfering RNA or briciclib, an eIF4E small molecule inhibitor, downregulated the expression of eIF4E itself and its two complex partners eIF4A and G, as well as other eIFs (eg, eIF1A, eIF2α, eIF3A, eIF3B, eIF5, and eIF6). This inhibition also abolished psoriatic inflammation in both the imiquimod and TGFß mouse model, as well as in a human 3 dimensional-psoriasis tissue model. Downregulation of eIF4E and the other eIFs by application of briciclib (particularly when given topically) was linked to the normalization of cellular proliferation, epidermal hyperplasia, levels of proinflammatory cytokines (eg, TNFα, IL-1b, IL-17, and IL-22), and keratinocyte differentiation markers (eg, KRT16 and FLG). These results demonstrate translational imbalance and underline the crucial role played by eIF4E and other eIFs in the pathophysiology of psoriasis. This work opens up avenues for the development of novel topical antipsoriatic treatment strategies by targeting eIF4E.
Find related publications in this database (using NLM MeSH Indexing)
Animals - administration & dosage
Mice - administration & dosage
Humans - administration & dosage
Eukaryotic Initiation Factor-4E - genetics
RNA, Small Interfering - genetics, metabolism
Protein Processing, Post-Translational - administration & dosage
Psoriasis - drug therapy

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