ArticleBiomedicine & pharmacotherapy = Biomedecine & pharmacotherapie2021
Alveolar epithelial glycocalyx shedding aggravates the epithelial barrier and disrupts epithelial tight junctions in acute respiratory distress syndrome.
Article in Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed, 46 citations in OpenAlex.
- Effect of Neutrophil Elastase Inhibitor (Sivelestat Sodium) on Oxygenation in Patients with Sepsis-Induced Acute Respiratory Distress Syndrome.Journal of inflammation research · 2025Trial
- [Development and validation of an interpretable machine learning model for predicting reguirement of early invasive mechanical ventilation in patients with acute pancreatitis].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2026Article
- ADAMTS2 Modulates Inflammation, Autophagy, and Barrier Integrity Through PI3K/AKT/mTOR Signaling in LPS-Induced Acute Respiratory Distress Syndrome.Immunity, inflammation and disease · 2026Article
- Treating acute respiratory distress syndrome with a multifaceted nanomedicine: Inhibition of PANoptosis and enhancement of lung barrier integrity.Materials today. Bio · 2026Article
- Scutellarein fromPharmaceuticals (Basel, Switzerland) · 2026Article
- Targeting heparanase-associated epithelial glycocalyx remodeling attenuates Akt/NF-κB-related barrier dysfunction in experimental COPD.Frontiers in pharmacology · 2026Article
- Effective-Component Compatibility of Bufei Yishen Formula Alleviates Alveolar Epithelial Barrier Damage in COPD Through Inhibition of p38 MAPK Phosphorylation.International journal of chronic obstructive pulmonary disease · 2026Article
- Endothelial-Epithelial Crosstalk Drives Alveolar-Capillary Barrier Dysfunction in ARDS.Journal of inflammation research · 2026Review
- Endothelial glycocalyx glycan expression in lymphatic vasculature in mice.Frontiers in cell and developmental biology · 2026Article
- Mitochondrial transplantation attenuates alveolar epithelial cell dysfunction and reduces disruption of tight junction proteins to alleviate lung ischaemia-reperfusion injury.Journal of translational medicine · 2025Article
- Staged Construction of Pluripotent Stem Cell Lung Models for Assessing Respiratory Toxicity of Environmental Pollutants.Environment & health (Washington, D.C.) · 2025Review
- Mesenchymal stem cells protect the integrity of the alveolar epithelial barrier through extracellular vesicles by inhibiting MAPK-mediated necroptosis.Stem cell research & therapy · 2025Article
- Comparative electron microscopic visualization of the lung alveolar epithelial glycocalyx with different staining and labeling methods.Journal of anatomy · 2025Article
- The pathogenesis and therapeutic strategies of heat stroke-induced endothelial injury.Frontiers in cell and developmental biology · 2025Review
- Observational
- NLRP3 regulates epithelial barrier integrity and protects from airway hyperresponsiveness in experimental allergic asthma.Frontiers in immunology · 2025Article
- Cellular Mechanisms of Lung Injury: Current Perspectives.Clinics in chest medicine · 2024Review
- Sepsis-Induced Endothelial Dysfunction: Permeability and Regulated Cell Death.Journal of inflammation research · 2024Review
- Interaction between mitochondrial homeostasis and barrier function in lipopolysaccharide-induced endothelial cell injury.International journal of experimental pathology · 2023Article
- DMPP attenuates lipopolysaccharide-induced lung injury by inhibiting glycocalyx degradation through activation of the cholinergic anti-inflammatory pathway.Journal of bioenergetics and biomembranes · 2023Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The main pathophysiological mechanism of acute respiratory distress syndrome (ARDS) invovles the increase in alveolar barrier permeability that is primarily caused by epithelial glycocalyx and tight junction (TJ) protein destruction. This study was performed to explore the effects of the alveolar epithelial glycocalyx on the epithelial barrier, specifically on TJ proteins, in ARDS. We used C57BL/6 mice and human lung epithelial cell models of lipopolysaccharide (LPS)-induced ARDS. Changes in alveolar permeability were evaluated via pulmonary histopathology analysis and by measuring the wet/dry weight ratio of the lungs. Degradation of heparan sulfate (HS), an important component of the epithelial glycocalyx, and alterations in levels of the epithelial TJ proteins (occludin, zonula occludens 1, and claudin 4) were assessed via ELISA, immunofluorescence analysis, and western blotting analysis. Real-time quantitative polymerase chain reaction was used to detect the mRNA of the TJ protein. Changes in glycocalyx and TJ ultrastructures in alveolar epithelial cells were evaluated through electron microscopy. In vivo and in vitro, LPS increased the alveolar permeability and led to HS degradation and TJ damage. After LPS stimulation, the expression of the HS-degrading enzyme heparanase (HPA) in the alveolar epithelial cells was increased. The HPA inhibitor N-desulfated/re-N-acetylated heparin alleviated LPS-induced HS degradation and reduced TJ damage. In vitro, recombinant HPA reduced the expression of the TJ protein zonula occludens-1 (ZO-1) and inhibited its mRNA expression in the alveolar epithelial cells. Taken together, our results demonstrate that shedding of the alveolar epithelial glycocalyx aggravates the epithelial barrier and damages epithelial TJ proteins in ARDS, with the underlying mechanism involving the effect of HPA on ZO-1.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.