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Extracellular matrix components in preeclampsia

Clinica Chimica Acta, ISSN: 0009-8981, Vol: 568, Page: 120132
2025
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Review Description

Preeclampsia (PE) is a gestational complication affecting 5% to 10% of all pregnancies. PE is characterized by hypertension and endothelial dysfunction, whose etiology involves, among other factors, alterations in the extracellular matrix (ECM) that can compromise vascular remodeling and trophoblast invasion, ie, processes essential for placental development. Endothelial dysfunction is caused by release of antiangiogenic factors, mainly a soluble fms-like tyrosine kinase-1 (sFlt-1), which antagonizes two endothelial angiogenic factors, the vascular endothelial growth factor (VEGF) and placental growth factor (PLGF). This angiogenic imbalance contributes to clinical symptoms including hypertension and multisystem dysfunction. This review aims to summarize recent advances in understanding PE, particularly with altered ECM components such as heparan sulfate proteoglycans, the glycosidase heparanase, fibronectin, collagen XVIII (endostatin), and metalloproteases. This comprehensive narrative review was conducted on PubMed from 1994 to 2024, focusing on articles on the pathophysiology of PE, particularly endothelial dysfunction caused by ECM modifications. The data shows a reduced expression of matrix metalloproteinases, increased collagen fragment XVIII, and significant changes in fibronectin associated with PE. Furthermore, endothelial dysfunction was associated with increased degradation of heparan sulfate chains from proteoglycans and increased sFlt-1. Understanding these ECM modifications is crucial for developing potential new therapeutic interventions that improve maternal and fetal outcome in PE.

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