ArticleCellular and molecular life sciences : CMLS2025
Calciprotein particle-activated endothelial cells aggravate smooth muscle cell calcification via paracrine signalling.
Article in Cellular and molecular life sciences : CMLS, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Neuroimmune Regulation in Posttraumatic Bone Repair: From Inflammatory Transition to Neurovascular Coupling and Functional Recovery.Journal of cellular physiology · 2026Review
- Chronic kidney disease: from mineral dysregulation to bone and cardiovascular disease.Journal of endocrinological investigation · 2026Review
- Gla-Rich Protein (GRP): A Vitamin K-Dependent Regulator of Vascular Calcification, Inflammation, and Mineral Homeostasis.Current issues in molecular biology · 2026Review
- Beyond cardiac fibroblasts: research advances on understanding and targeting intercellular communication networks in cardiac fibrosis.Frontiers in cardiovascular medicine · 2026Review
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21 authors.
Funding
Abstract
backgroundVascular calcification is highly prevalent in Chronic Kidney Disease (CKD) and is associated with markedly increased cardiovascular risk. High serum phosphate in CKD increases calcification propensity via generation of circulating calciprotein particles (CPP2), crystalline nanoaggregates composed of calcium, phosphate, and serum proteins. CPP2 induce vascular calcification in vascular smooth muscle cells (VSMCs) in vitro. In vivo, endothelial cells, rather than VSMCs are primarily exposed to CPP2, yet understanding the influence of endothelial cells on vascular calcification is limited.
methodsWe investigated calcification-promoting signalling by endothelial cells on VSMCs. Effects of CPP2 exposure to endothelial cells on CPP2 uptake, endothelial cell activation, and endothelial cell-derived secretome were studied. Effects of the secretome on VSMC calcification were investigated. Using NanoString nCounter analysis the effects of CPP2-activated endothelial cell-conditioned medium on VSMCs gene expression were mapped.
resultsEndothelial cells internalise CPP2 and elevate ICAM-1, E-selectin, and VCAM-1-mRNA expression, indicating endothelial activation. VSMCs cultured in conditioned medium from CPP2-activated endothelial cells demonstrated enhanced calcification, suggesting that CPP2-activated endothelial cells release pro-calcifying soluble factors. Mass spectrometry was utilized to identify 1171 proteins in the CPP2-activated endothelial cells' secretome. Among these, 76 proteins were differentially expressed compared to control endothelial cells' secretome, including proteins related to blood vessel development, extracellular matrix remodelling, and oxidative stress-related processes. Finally, endothelial cell-derived paracrine factors present in conditioned medium enhanced mRNA-expression of calcification-related factors in VSMCs.
conclusionsCPP2-activated endothelial cells promote VSMC calcification via paracrine signalling. In response to these paracrine factors, VSMCs increase the expression of pro-calcification genes.
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