ArticleMolecular biology reports2025
Wnt1 oversees microglial activation by the Wnt/LRP5/6 receptor signaling pathway during lipopolysaccharide-mediated toxicity.
Article in Molecular biology reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Article
- Delphinidin-3-O-glucoside attenuates neonatal hypoxic-ischemic encephalopathy in a neonatal mouse model by reprogramming microglial polarization.Frontiers in pharmacology · 2026Article
- Beyond inflammation: a comprehensive microglial regulation model in chronic pain.Molecular biology reports · 2025Review
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5 authors.
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Abstract
backgroundThe protective effects of autophagy-mediated microglial inflammatory regulation on diseases of the central nervous system (CNS) has been a recent field of interest. The canonical signaling pathway activated by Wnt1, the Wnt/β-catenin signaling cascade, also plays a crucial protective role in neurodegenerative diseases. However, the relationship between Wnt1/β-catenin signaling and microglial activation remains unclear. Our study focused on understanding the impact and mechanism of Wnt1 on microglial activation. METHODS AND
resultsTo simulate neuroinflammatory conditions in vitro, BV2 cells were exposed to 1 μg/mL lipopolysaccharide. CD86- and CD206-positive cells were identified by flow cytometry and immunofluorescence assays. Inflammatory and anti-inflammatory factors were measured using enzyme-linked immunosorbent assays. Autophagy was analyzed by expression of LC3B puncta, LC3, P62, and beclin1 expression. The inflammatory activation suppressed by rhWnt1 was restricted by DKK1, siRNA-β-catenin and siRNA-LKB1, respectively, with concomitant changes in β-catenin expression and phosphorylation of NFκB-p65, LKB1, and AMPK. Although the anti-inflammatory effect of Wnt1/LKB1 pathway was independent of β-catenin, Wnt1/LKB1 regulated β-catenin. The reduced inflammation caused by rhWnt1 is linked to its enhancement of autophagy, a process blocked by siRNA-LKB1 and 3-MA partially.
conclusionsThe anti-inflammatory effects of Wnt1 on BV2 cells improved autophagy, a mechanism partly dependent on the β-catenin pathway or the phosphorylation of LKB1. Furthermore, the Wnt1/LKB1 pathway was activated independently of β-catenin and participated in regulating its expression. Our research unveils a previously unknown method through which Wnt1 exerts its anti-inflammatory effects, which may have a potential protective role against CNS diseases.
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