ArticleKidney medicine
Mesangioproliferative Kidney Diseases and Platelet-Derived Growth Factor-Mediated AXL Phosphorylation.
Article in Kidney medicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 6 citations in OpenAlex.
- Targeted Therapies Modulating Mesenchymal-Epithelial Transition-Linked Oncogenic Signaling in the Tumor Microenvironment: Comparative Profiling of Capmatinib, Bemcentinib, and Galunisertib.Journal of clinical medicine · 2025Review
- Inhibition of Axl attenuates acute kidney injury by alleviating inflammation via SOCS3 downregulation in tubular epithelial cells.BMC nephrology · 2025Article
- O-glycosylation of IgA1 and the pathogenesis of an autoimmune disease IgA nephropathy.Glycobiology · 2024Review
- Review
- Pharmacological inhibition of protein tyrosine kinases axl and fyn reduces TNF-α-induced endothelial inflammatory activationFrontiers in pharmacology · 2022Article
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Authors and funding
11 authors at 4 institutions in 3 countries.
Funding
Abstract
RATIONALE &
objectiveImmunoglobulin A nephropathy (IgAN) is a common glomerular disease, with mesangial cell proliferation as a major feature. There is no disease-specific treatment. Platelet-derived growth factor (PDGF) contributes to the pathogenesis of IgAN. To better understand its pathogenic mechanisms, we assessed PDGF-mediated AXL phosphorylation in human mesangial cells and kidney tissue biopsy specimens. STUDY
designImmunostaining using human kidney biopsy specimens and SETTING &
participantsPhosphorylation of AXL was assessed in cultured mesangial cells and 10 kidney-biopsy specimens from 5 patients with IgAN, 3 with minimal change disease, 1 with membranous nephropathy, and 1 with mesangioproliferative glomerulonephritis (GN). PREDICTOR: Glomerular staining for phospho-AXL in kidney biopsy specimens of patients with mesangioproliferative diseases. OUTCOMES: Phosphorylated AXL detected in biopsy tissues of patients with IgAN and mesangioproliferative GN and in cultured mesangial cells stimulated with PDGF. ANALYTIC APPROACH:
resultsImmunohistochemical staining revealed enhanced phosphorylation of glomerular AXL in IgAN and mesangioproliferative GN, but not in minimal change disease and membranous nephropathy. Confocal-microscopy immunofluorescence analysis indicated that mesangial cells rather than endothelial cells or podocytes expressed phospho-AXL. Kinomic profiling of primary mesangial cells treated with PDGF revealed activation of several protein-tyrosine kinases, including AXL. Immunoprecipitation experiments indicated association of AXL and PDGF receptor proteins. An AXL-specific inhibitor (bemcentinib) partially blocked PDGF-induced cellular proliferation and reduced phosphorylation of AXL and PDGF receptor and the downstream signals (AKT1 and ERK1/2). LIMITATIONS: Small number of kidney biopsy specimens to correlate the activation of AXL with disease severity.
conclusionsPDGF-mediated signaling in mesangial cells involves transactivation of AXL. Finding appropriate inhibitors to block PDGF-mediated transactivation of AXL may provide new therapeutic options for mesangioproliferative kidney diseases such as IgAN.
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