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The endothelial glycocalyx is a negatively charged, carbohydrate-rich structure that arises from the luminal surface of the vascular endothelium and is comprised of proteoglycans, glycoproteins, and glycolipids. The glycocalyx, which sits at the interface between the endothelium and the blood, is involved in a wide array of physiological and pathophysiological processes, including as a mechanotransducer and as a regulator of inflammation. Most recently, components of the glycocalyx have been shown to play a key role in controlling angiogenesis. In this review, we briefly summarize the structure and function of the endothelial glycocalyx. We focus on its role and functions in vascular inflammation and angiogenesis and discuss the important unanswered questions in this field.
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http://dx.doi.org/10.3389/fcell.2021.734276 | DOI Listing |
Exp Clin Transplant
August 2025
>From the Department of Urology, University Hospital Hradec Kralove, Hradec Kralove, Czechia; and the Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove, Czechia.
Objectives: Kidney transplant is a life-saving procedure for patients with end-stage renal disease. Success of kidney transplant is highly dependent on maintaining the integrity of the endothelium and its protective layer, the endothelial glycocalyx. Ischemia-reperfusion injury, a common challenge in kidney transplant, can disrupt the endothelial glycocalyx, leading to various post-transplant complications.
View Article and Find Full Text PDFDiabetes Metab Res Rev
September 2025
Department of Nephrology, Daping Hospital, Army Medical University, Chongqing, China.
Chronic kidney disease (CKD) substantially increases cardiovascular risk, with endothelial dysfunction as its central pathological mechanism. This review summarises the molecular regulatory mechanisms underlying endothelial dysfunction in CKD and highlights recent advances in treatment strategies. The pathophysiology of endothelial injuries involves a complex network of multiple factors and mechanisms, including oxidative stress, inflammation, glycocalyx damage, ischaemia, hypoxia, cellular senescence and endothelial-mesenchymal transition (EndMT).
View Article and Find Full Text PDFJ Burn Care Res
September 2025
Department of Surgery, Loyola University Medical Center, Maywood, IL, US.
Shock-induced endothelial dysfunction plays a critical role in burn pathophysiology, with endothelial glycocalyx layer (EGL) degradation promoting systemic inflammation, vascular instability, and multi-organ failure. The Angiopoietin-TIE2 axis, particularly the Angiopoietin-1 (Ang-1) and Angiopoietin-2 (Ang-2) balance, regulates endothelial function; elevated Ang-2 and a high Ang-2/1 ratio are linked to worse outcomes in critical illness. While well-documented in sepsis and trauma, effects of burn-induced Angiopoietin dysregulation remains unclear.
View Article and Find Full Text PDFClin Proteomics
August 2025
Department of Surgical Sciences, Anesthesiology and Intensive Care, Uppsala University, 75185, Uppsala, Sweden.
Background: Sepsis is a critical condition characterized by a dysregulated immune response to infection. As sepsis develops to septic shock, its most severe form, morbidity and mortality increases. Hyaluronan is a key component of the extracellular matrix and the endothelial glycocalyx.
View Article and Find Full Text PDFExp Mol Pathol
August 2025
Division of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany. Electronic address:
Background And Aims: Platelet-Derived Growth Factor (PDGF)-C plays a significant role in kidney fibrosis, angiogenesis, and hypertension. While its involvement in the healing of damaged glomerular capillaries is well recognized, its function in kidney peritubular capillaries (PTCs) remains less understood. Therefore, this study investigates the role of PDGF-C in PTCs under both homeostatic conditions and experimentally angiotensin II (AngII)-induced hypertension.
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