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Updated: Apr 18, 2026

Modeling Paracrine Noncanonical Wnt Signaling In Vitro
Published on: December 10, 2021
Wnt5a is involved in the pathogenesis of cutaneous lichen planus
1Department of Dermatology, Second Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, PR China.
Background:
Cutaneous lichen planus (CLP) is a chronic inflammatory and immune-mediated disease. Wnt5a is one of the most extensively studied Wnt proteins, and has important functions in stimulating inflammation, cell proliferation, cell fate determination and cell differentiation. Wnt5a expression in CLP has not been comprehensively studied to date.
Aim:
To determine the expression and distribution of Wnt5a in CLP.
Methods:
Skin samples were obtained from patients with CLP and healthy controls (HCs). The WNT5A gene was detected by real-time quantitative PCR, and Wnt5a protein by immunohistochemical analysis and western blotting.
Results:
WNT5A mRNA was upregulated in CLP samples compared with the HC skin samples (P < 0.001). Wnt5a protein was overexpressed in all layers of the epidermis and dermis in CLP lesions compared with HC skin (all P < 0.001). These results were confirmed by western blotting.
Conclusions:
The data presented in this study suggest that Wnt5a pathway may play an important role in the pathogenesis of CLP.
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