ArticleScientific reports2025
Crosstalk of injured podocytes with parietal epithelial cells through Wnt4/β-Catenin signaling.
Article in Scientific 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.
- Steroid-Resistant Idiopathic Nephrotic Syndrome Reveals a Distinct Maladaptive Molecular State.Kidney international reports · 2026Article
- Cell-cell crosstalk in kidney health and disease.Nature reviews. Nephrology · 2026Review
- Piezo1-Mediated Mechanotransduction: Orchestrating the Dynamic Response of Podocytes and Parietal Epithelial Cells to Mechanical Stress.Acta physiologica (Oxford, England) · 2026Review
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Authors and funding
9 authors.
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Abstract
Focal segmental glomerular sclerosis (FSGS) is considered an irreversible lesion in kidney disease. Here, we investigated the role of the wnt4/β-Catenin signaling pathway in FSGS lesion formation and the crosstalk between PECs and podocytes in a transgenic FSGS rat model and human primary FSGS to explore potential sex-specific differences and therapeutic options. After model induction in rats, we observed strong podocytes loss on day 7, which was significantly higher in male than in female rats. Starting at d14, both glomerular mRNA and protein expression of Wnt4 were increased, but more pronounced in males. Wnt4 was localized to podocytes and β-Catenin to Pax8-positive lesions. The Wnt4 target gene CD44 was strongly upregulated on d7 and increased until the end of the experiment (d42). In cell culture, we confirmed that injured podocytes expressed and secreted Wnt4, which stimulated the expression of the Wnt target gene Axin2 in PECs but not in podocytes. Wnt4/β-Catenin pathway activation was confirmed in human biopsies with podocytopathic FSGS. In conclusion, the canonical Wnt/β-Catenin axis plays a critical role in the crosstalk between PECs and injured podocytes. Furthermore, sex-specific differences in podocyte injury and regeneration appear to be, at least in part, Wnt4-mediated.
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