ArticleThe European respiratory journal2023
Wnt7a deficit is associated with dysfunctional angiogenesis in pulmonary arterial hypertension.
Article in The European respiratory journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 17 citations in OpenAlex.
- Exploring the Lung-Liver Axis in Pulmonary Arterial Hypertension.Comprehensive Physiology · 2026Article
- FRZB-induced anti-angiogenic effect via Caveolin-1-mediated TGFβ signalling.Nature communications · 2026Article
- Loss of ROR2 Tyrosine Kinase Receptor Is Associated With Endothelial Dysfunction in PAH via Inappropriate Integrin β1 Activation.Hypertension (Dallas, Tex. : 1979) · 2026Article
- Combined impact of ROR2 and its ligands on the pathogenesis and prognosis of idiopathic pulmonary fibrosis.Sarcoidosis, vasculitis, and diffuse lung diseases : official journal of WASOG · 2026Article
- Secreted frizzled-related proteins in angiogenesis: molecular mechanisms and clinical implications.Angiogenesis · 2025Review
- Blocking WNT7A Enhances MHC-I Antigen Presentation and Enhances the Effectiveness of Immune Checkpoint Blockade Therapy.Cancer immunology research · 2025Article
- Bioinformatic Analysis and Molecular Docking Identify Isorhamnetin Is a Candidate Compound in the Treatment of Pulmonary Artery Hypertension.Anatolian journal of cardiology · 2025Article
- 5-Aminoimidazole-4-carboxamide ribonucleotide formyltransferase/inosine monophosphate cyclohydrolase promotes pulmonary arterial smooth muscle cell proliferation via the Ras signaling pathway.American journal of physiology. Cell physiology · 2024Article
- Methylome analysis of endothelial cells suggests new insights on sporadic brain arteriovenous malformation.Heliyon · 2024Article
- Characteristic disease defects in circulating endothelial cells isolated from patients with pulmonary arterial hypertension.PloS one · 2024Article
- Erythropoietin improves pulmonary hypertension by promoting the homing and differentiation of bone marrow mesenchymal stem cells in lung tissue.Human cell · 2024Article
- Study on Potential Differentially Expressed Genes in Idiopathic Pulmonary Fibrosis by Bioinformatics and Next-Generation Sequencing Data Analysis.Biomedicines · 2023Article
- UnWNTing the Heart: Targeting WNT Signaling in Pulmonary Arterial Hypertension.Circulation research · 2023Article
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32 authors at 16 institutions in 3 countries.
Funding
Abstract
introductionPulmonary arterial hypertension (PAH) is characterised by loss of microvessels. The Wnt pathways control pulmonary angiogenesis but their role in PAH is incompletely understood. We hypothesised that Wnt activation in pulmonary microvascular endothelial cells (PMVECs) is required for pulmonary angiogenesis, and its loss contributes to PAH.
methodsLung tissue and PMVECs from healthy and PAH patients were screened for Wnt production. Global and endothelial-specific
resultsHealthy PMVECs demonstrated >6-fold Wnt7a expression during angiogenesis that was absent in PAH PMVECs and lungs. Wnt7a expression correlated with the formation of tip cells, a migratory endothelial phenotype critical for angiogenesis. PAH PMVECs demonstrated reduced vascular endothelial growth factor (VEGF)-induced tip cell formation as evidenced by reduced filopodia formation and motility, which was partially rescued by recombinant Wnt7a. We discovered that Wnt7a promotes VEGF signalling by facilitating Y1175 tyrosine phosphorylation in vascular endothelial growth factor receptor 2 (VEGFR2) through receptor tyrosine kinase-like orphan receptor 2 (ROR2), a Wnt-specific receptor. We found that ROR2 knockdown mimics Wnt7a insufficiency and prevents recovery of tip cell formation with Wnt7a stimulation. While there was no difference between wild-type and endothelial-specific
conclusionsWnt7a promotes VEGF signalling in lung PMVECs and its loss is associated with an insufficient VEGF-A angiogenic response. We propose that Wnt7a deficiency contributes to progressive small vessel loss in PAH.
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