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Published on: January 7, 2019
Topical MTH1 Inhibition Suppresses SKP2-WNT5a-Driven Psoriatic Hyperproliferation
Cecilia Bivik Eding1, Ines Köhler1, Lavanya Moparthi1
1Ingrid Asp Psoriasis Research Center, Department of Biomedical and Clinical Sciences, Linköping University, 581 85 Linköping, Sweden.
Topical TH1579 effectively treats psoriasis by reducing inflammatory cell infiltration and keratinocyte proliferation. This novel therapy targets the SKP2/WNT5a pathway, offering new hope for mild-to-moderate psoriasis patients.
Area of Science:
- Dermatology
- Immunology
- Molecular Biology
Background:
- Psoriasis is a chronic inflammatory skin condition characterized by hyperproliferation of keratinocytes.
- Current treatments have limitations, necessitating novel therapeutic approaches.
Purpose of the Study:
- To evaluate the efficacy of topically applied TH1579 in a mouse model of psoriasis.
- To elucidate the molecular mechanisms underlying TH1579's therapeutic effects.
Main Methods:
- Imiquimod-induced psoriasis mouse model.
- Assessment of inflammatory cell infiltration (CD45+, Ly6b+, CD3+).
- Analysis of proliferation markers (PCNA, WNT5a) and IL-17 expression.
- Mass spectrometry to identify protein targets.
- Evaluation of SKP2 (S-phase kinase-associated protein 2) and WNT5a expression.
Main Results:
- TH1579 significantly alleviated psoriatic phenotype by reducing inflammatory cell infiltration.
- TH1579 suppressed IL-17 expression and decreased keratinocyte proliferation.
- Downregulation of SKP2 and its downstream target WNT5a was observed.
- Proteomic analysis indicated enrichment of proteins involved in nucleotide excision repair and cell cycle regulation.
Conclusions:
- Topical TH1579 demonstrates therapeutic potential for psoriasis treatment.
- The SKP2/WNT5a pathway is crucial for mediating psoriatic hyperproliferation and is a target of TH1579.
- TH1579 offers an innovative topical treatment option for mild-to-moderate psoriasis.
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