Related Experiment Video
Updated: Dec 2, 2025

Isolation and Differentiation of Stromal Vascular Cells to Beige/Brite Cells
Published on: March 28, 2013
The Model of PPARγ-Downregulated Signaling in Psoriasis
Vladimir Sobolev1,2, Anastasia Nesterova3, Anna Soboleva2
1I. Mechnikov Research Institute for Vaccines and Sera RAMS, 5 Malyy Kazennyy Pereulok, 105064 Moscow, Russia.
Abstract:
Interactions of genes in intersecting signaling pathways, as well as environmental influences, are required for the development of psoriasis. Peroxisome proliferator-activated receptor gamma (PPARγ) is a nuclear receptor and transcription factor which inhibits the expression of many proinflammatory genes. We tested the hypothesis that low levels of PPARγ expression promote the development of psoriatic lesions. We combined experimental results and network functional analysis to reconstruct the model of PPARγ-downregulated signaling in psoriasis. We hypothesize that the expression of IL17, STAT3, FOXP3, and RORC and FOSL1 genes in psoriatic skin is correlated with the level of PPARγ expression, and they belong to the same signaling pathway that regulates the development of psoriasis lesion.
Insights
Low expression of Peroxisome proliferator-activated receptor gamma (PPARγ) may drive psoriasis development. PPARγ influences key inflammatory genes like IL17 and STAT3, suggesting a novel therapeutic target for this skin condition.
Area of Science:
- Immunodermatology
- Molecular Biology
- Genetics
Background:
- Psoriasis development involves complex gene interactions and environmental factors.
- Peroxisome proliferator-activated receptor gamma (PPARγ) is a nuclear receptor that suppresses proinflammatory gene expression.
Purpose of the Study:
- To test the hypothesis that reduced PPARγ expression promotes psoriatic lesion development.
- To model PPARγ-downregulated signaling in psoriasis.
Main Methods:
- Combined experimental data with network functional analysis.
- Reconstructed signaling pathways related to PPARγ in psoriasis.
Main Results:
- Hypothesized correlation between PPARγ expression levels and key genes (IL17, STAT3, FOXP3, RORC, FOSL1) in psoriatic skin.
- Identified these genes as part of a shared signaling pathway regulating psoriasis.
Conclusions:
- Low PPARγ expression is implicated in the pathogenesis of psoriasis.
- PPARγ signaling pathway interactions are crucial in psoriatic lesion development.
Related Concept Videos
TGF - β Signaling Pathway
Receptor Downregulation in MVBs
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR...
The JAK-STAT Signaling Pathway
GPCR Desensitization
Interactions Between Signaling Pathways
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Amplifying Signals via Enzymatic Cascade
