ArticleJournal of inflammation research2021
Syndecan-1 Shedding by Matrix Metalloproteinase-9 Signaling Regulates Alveolar Epithelial Tight Junction in Lipopolysaccharide-Induced Early Acute Lung Injury.
Article in Journal of inflammation research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
22 citing papers in PubMed, 40 citations in OpenAlex.
- The effects of balanced crystalloid versus plasma on endothelial injury, systemic inflammation, and coagulation in experimental endotoxaemia: a randomised human volunteer study.British journal of anaesthesia · 2026Trial
- Alveolar epithelial barrier disruption by FKBP5-mediated necroptosis aggravates lung injury.Respiratory research · 2026Article
- From Alveolar Injury to Precision Perioperative Care: Integrating Molecular Biomarkers and Technology-Enabled Strategies for Prolonged Air Leak After Lung Resection.Mediators of inflammation · 2026Review
- Bioinformatics driven in gene targeting platform for gold anticancer strategy delivery.Materials today. Bio · 2025Article
- Prognostic Role of MMP2, MMP9, and IL-1β Markers in Cardiac Allograft Rejection After Transplantation.International journal of molecular sciences · 2025Article
- Methamphetamine-Induced Loss of Syndecan-1 and Retinal Endothelial Integrity via the TAAR-1/MMP-9 Pathway.Pathophysiology : the official journal of the International Society for Pathophysiology · 2025Article
- Aerosolized nicotine-free e-liquid base constituents exacerbates mitochondrial dysfunction and endothelial glycocalyx shedding via the AKT/GSK3β-mPTP pathway in lung injury models.Respiratory research · 2025Article
- Multi-Target Synergy Against Acute Lung Injury: Systems Pharmacology Decoding Dahuang-Huangqin Herb Pair's Therapeutic Mechanism.Journal of inflammation research · 2025Article
- Article
- Review
- The effects of metabolites from three vaginal bacteria on the Syndecan-1 of cervical epithelial cells.Heliyon · 2024Article
- High Glucose Induces Oxidative Stress That Alters Glycocalyx Proteoglycan Levels in Primary Rat Retinal Microvascular Endothelial Cells and in Isolated Ophthalmic Arteries.Pathophysiology : the official journal of the International Society for Pathophysiology · 2024Article
- Predictive role of glycocalyx components and MMP-9 in cardiopulmonary bypass patients for ICU stay.Heliyon · 2024Article
- Plasma TNFRSF11B as a New Predictive Inflammatory Marker of Sepsis-ARDS with Endothelial Dysfunction.Journal of proteome research · 2023Article
- The Pulmonary Endothelial Glycocalyx Modifications in Glypican 1 Knockout Mice Do Not Affect Lung Endothelial Function in Physiological Conditions.International journal of molecular sciences · 2023Article
- Decreased retinal and choroidal endothelial surface molecules in spontaneously hypertensive rats.Experimental eye research · 2023Article
- Bone mesenchymal stem cell extracellular vesicles delivered miR let-7-5p alleviate endothelial glycocalyx degradation and leakage via targeting ABL2.Cell communication and signaling : CCS · 2023Article
- Fibrinogen Inhibits Metalloproteinase-9 Activation and Syndecan-1 Cleavage to Protect Lung Function in ApoE Null Mice After Hemorrhagic Shock.The Journal of surgical research · 2023Article
- The unremarkable alveolar epithelial glycocalyx: a thorium dioxide-based electron microscopic comparison after heparinase or pneumolysin treatment.Histochemistry and cell biology · 2023Article
- The role of the alveolar epithelial glycocalyx in acute respiratory distress syndrome.American journal of physiology. Cell physiology · 2023Review
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionAlveolar epithelial tight junction damage and glycocalyx syndecan-1 (SDC-1) degrading are key factors to pulmonary edema of acute lung injury (ALI). Matrix metalloproteinase-9 (MMP-9) was involved in glycocalyx shedding, which was vital in SDC-1 degrading. This study aimed to investigate the effects of MMP-9-mediated SDC-1 shedding on tight junction in LPS-induced ALI.
methodsMice were intratracheally atomized with 5 mg/kg LPS to stimulate different periods and LPS stimulation for 6 hours for further studies. A549 cells was stimulated for 6 hours by active MMP-9 protein to assess the effects of active MMP-9 protein on SDC-1 and tight junction. Afterward, the mice treated with MMP-9 shRNA or A549 cells were treated with MMP-9 siRNA before LPS stimulation for 6 hours to explore the effects on glycocalyx SDC-1 and tight junction. Moreover, the mice were treated with recombinant SDC-1 protein or A549 cells were over-expressed by pc-SDC-1 before LPS stimulation for 6 hours to explore the effects of SDC-1 on tight junction.
resultsThe mice persistent exposure to LPS showed that MMP-9 expression, glycocalyx SDC-1 shedding (SDC-1 decreased in alveolar epithelium and increased in the BALF), tight junction impairment, FITC-albumin infiltration, and other phenomena began to appear after 6 hours of LPS treatment in this study. The levels of SDC-1 and tight junction significantly decreased by active MMP-9 protein stimulation for 6 hours in the A549 cells. Therefore, LPS stimulation for six hours was selected for investigating the underlying effects of MMP-9-mediated SDC-1 shedding on the alveolar epithelial tight junction and pulmonary edema. Further vivo analysis showed that down regulation MMP-9 expression by MMP-9 shRNA significantly alleviated glycocalyx SDC-1 shedding (SDC-1 increased in alveolar epithelium and decreased in the BALF), tight junction (occludin and ZO-1) damage, and FITC-albumin infiltration in LPS-induced early ALI mice. The vitro results also showed that MMP-9 siRNA alleviated glycocalyx SDC-1 shedding (SDC-1 increased in cell culture medium and decreased in cell surface) and tight junction damage by downregulating MMP-9 expression in LPS-stimulated A549 cells. In addition, pretreatment with recombinant mouse SDC-1 protein significantly alleviated glycocalyx (SDC-1 increased in alveolar epithelium) and tight junction damage, and FITC-albumin infiltration in LPS-induced early ALI mice. Overexpression SDC-1 by pc-SDC-1 also significantly decreased tight junction damage in LPS-stimulated A549 cells.
conclusionGlycocalyx SDC-1 shedding mediated by MMP-9 significantly aggravated tight junction damage, which further increased the pulmonary edema.
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