ArticleCritical care (London, England)2017
Vasculotide reduces pulmonary hyperpermeability in experimental pneumococcal pneumonia.
Article in Critical care (London, England), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
28 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.
- Pneumolysin as a target for new therapies against pneumococcal infections: A systematic review.PloS one · 2023Pooled it
- Pre-Exposure Prophylaxis with Vasculotide Enhances Survival and Alleviates Hematopoietic and Gastrointestinal Injury Following Lethal Total Body Irradiation.International journal of molecular sciences · 2026Article
- Amygdalin regulated vasoactive intestinal peptide receptor to protect alveolar epithelial barrier against lung injury induced by influenza a virus.Chinese medicine · 2025Article
- Role of Tie-2 Axis in Sepsis: A Potential Therapeutic Target.Journal of cellular and molecular medicine · 2025Review
- Razuprotafib Does Not Improve Microcirculatory Perfusion Disturbances nor Renal Edema in Rats on Extracorporeal Circulation.International journal of molecular sciences · 2025Article
- Advances in acute respiratory distress syndrome: focusing on heterogeneity, pathophysiology, and therapeutic strategies.Signal transduction and targeted therapy · 2025Review
- A Razor's Edge: Vascular Responses to Acute Inflammatory Lung Injury/Acute Respiratory Distress Syndrome.Annual review of physiology · 2024Review
- Global trends in research on endothelial cells and sepsis between 2002 and 2022: A systematic bibliometric analysis.Heliyon · 2024Review
- Treatment of vascular dementia in female rats with AV-001, an Angiopoietin-1 mimetic peptide, improves cognitive function.Frontiers in neuroscience · 2024Article
- Cationic LNP-formulated mRNA expressing Tie2-agonist in the lung endothelium prevents pulmonary vascular leakage.Molecular therapy. Nucleic acids · 2023Article
- Everolimus-induced hyperpermeability of endothelial cells causes lung injury.Experimental biology and medicine (Maywood, N.J.) · 2023Article
- Endothelial deletion of EPH receptor A4 alters single-cell profile and Tie2/Akap12 signaling to preserve blood-brain barrier integrity.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Review
- Early therapeutic effects of an Angiopoietin-1 mimetic peptide in middle-aged rats with vascular dementia.Frontiers in aging neuroscience · 2023Article
- Adjunctive therapy with the Tie2 agonist Vasculotide reduces pulmonary permeability in Streptococcus pneumoniae infected and mechanically ventilated mice.Scientific reports · 2022Article
- Review
- Endothelial Dysfunction after Hematopoietic Stem Cell Transplantation: A Review Based on Physiopathology.Journal of clinical medicine · 2022Review
- Treatment With an Angiopoietin-1 Mimetic Peptide Improves Cognitive Outcome in Rats With Vascular Dementia.Frontiers in cellular neuroscience · 2022Article
- Delayed angiopoietin-2 blockade reduces influenza-induced lung injury and improves survival in mice.Physiological reports · 2021Article
- Activated mesangial cells induce glomerular endothelial cells proliferation in rat anti-Thy-1 nephritis through VEGFA/VEGFR2 and Angpt2/Tie2 pathway.Cell proliferation · 2021Article
Corrections and comments
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Authors and funding
15 authors at 7 institutions in 3 countries.
Funding
Abstract
backgroundCommunity-acquired pneumonia (CAP) is a significant cause of morbidity and mortality worldwide. Despite effective antimicrobial therapy, CAP can induce pulmonary endothelial hyperpermeability resulting in life-threatening lung failure due to an exaggerated host-pathogen interaction. Treatment of acute lung injury is mainly supportive because key elements of inflammation-induced barrier disruption remain undetermined. Angiopoietin-1 (Ang-1)-mediated Tie2 activation reduces, and the Ang-1 antagonist Ang-2 increases, inflammation and endothelial permeability in sepsis. Vasculotide (VT) is a polyethylene glycol-clustered Tie2-binding peptide that mimics the actions of Ang-1. The aim of our study was to experimentally test whether VT is capable of diminishing pneumonia-induced lung injury.
methodsVT binding and phosphorylation of Tie2 were analyzed using tryptophan fluorescence spectroscopy and phospho-Tie-2 enzyme-linked immunosorbent assay. Human and murine lung endothelial cells were investigated by immunofluorescence staining and electric cell-substrate impedance sensing. Pulmonary hyperpermeability was quantified in VT-pretreated, isolated, perfused, and ventilated mouse lungs stimulated with the pneumococcal exotoxin pneumolysin (PLY). Furthermore, Streptococcus pneumoniae-infected mice were therapeutically treated with VT.
resultsVT showed dose-dependent binding and phosphorylation of Tie2. Pretreatment with VT protected lung endothelial cell monolayers from PLY-induced disruption. In isolated mouse lungs, VT decreased PLY-induced pulmonary permeability. Likewise, therapeutic treatment with VT of S. pneumoniae-infected mice significantly reduced pneumonia-induced hyperpermeability. However, effects by VT on the pulmonary or systemic inflammatory response were not observed.
conclusionsVT promoted pulmonary endothelial stability and reduced lung permeability in different models of pneumococcal pneumonia. Thus, VT may provide a novel therapeutic perspective for reduction of permeability in pneumococcal pneumonia-induced lung injury.
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Registered trials
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.