Evidence map›Paper›PMID 19121327›Full record

ArticleMicrovascular research2009

Protective effects of high-molecular weight polyethylene glycol (PEG) in human lung endothelial cell barrier regulation: role of actin cytoskeletal rearrangement.

Eddie T Chiang, Sara M Camp, Steven M Dudek, Mary E Brown, Peter V Usatyuk, Olga Zaborina, John C Alverdy, Joe G N Garcia

Abstract read
In one paragraph

Article in Microvascular research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
1.7field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 48 citations in OpenAlex.

  1. Institut Georges Lopez-2M as a Novel Lung Preservation Solution Attenuates Ischemia-Reperfusion Injury in a RatTransplant international : official journal of the European Society for Organ Transplantation · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Polymer Lung Surfactants Attenuate Direct Lung Injury in Mice.ACS biomaterials science & engineering · 2023
    Article
  7. The Role of IGL-2 Preservation Solution on Rat Livers during SCS and HOPE.International journal of molecular sciences · 2022
    Article
  8. Cortactin in Lung Cell Function and Disease.International journal of molecular sciences · 2022
    Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Glycocalyx in Endotoxemia and Sepsis.The American journal of pathology · 2020
    Review
  14. Article
  15. A nonapoptotic endothelial barrier-protective role for caspase-3.American journal of physiology. Lung cellular and molecular physiology · 2019
    Article
  16. Article
  17. Cortical Actin Dynamics in Endothelial Permeability.Current topics in membranes · 2018
    Article
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Eddie T ChiangSection of Pulmonary and Critical Medicine, Department of Medicine, University of Chicago Pritzker School of Medicine, 5841 S. Maryland Avenue, MC 6092 Chicago, IL 60637-1470, USA.
Sara M Camp
Steven M Dudek
Mary E Brown
Peter V Usatyuk
Olga Zaborina
John C Alverdy
Joe G N Garcia
University of Chicago · US

Funding

Tissue Culture Biomechanical CoreP01HL058064 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI GARCIA, JOE G. N. · 1998 to 2012
$27.8M
PSEUDOMONAS'EFFECTS ON THE GUT BARRIER FROM SURGERYR01GM062344 · NIGMS · UNIVERSITY OF CHICAGO · PI ALVERDY, JOHN C · 2001 to 2025
$9.2M
Cortactin in Regulation of Pulmonary Vascular PermeabilityR01HL088144 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DUDEK, STEVEN M · 2007 to 2011
$1.9M
Cortactin in Regulation of Pulmonary Vascular PermeabilityR56HL088144 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DUDEK, STEVEN M · 2015 to 2015
$422k
NHLBI NIH HHS HL058064NHLBI NIH HHS HL088144NHLBI NIH HHS P01 HL058064NHLBI NIH HHS R01 HL088144NHLBI NIH HHS R56 HL088144NIGMS NIH HHS GM062344NIGMS NIH HHS R01 GM062344
6 · The paper itself

Abstract

Acute lung injury represents the result of multiple pathways initiated by local or systemic insults and is characterized by profound vascular permeability, pulmonary edema, and life-threatening respiratory failure. Permeability-reducing therapies are of potential clinical utility but are currently unavailable. We hypothesized that polyethylene glycol (PEG) compounds, inert and non-toxic polymers that serve as a surrogate mucin lining in intestinal epithelium, may attenuate agonist-mediated lung endothelial cell (EC) barrier dysfunction. High molecular weight PEG (PEG15-20) produced rapid, dose-dependent increases in transendothelial electrical resistance (TER) in human lung endothelium cultured on gold microelectrodes, reflecting increased paracellular integrity. The maximal effective concentration of 8% PEG induced a sustained 125% increase in TER (40 h), results similar to barrier-enhancing agonists such as sphingosine 1-phosphate (40% increase in TER). Maximal PEG barrier enhancement was achieved at 45-60 min and PEG effectively reversed both thrombin- and LPS-induced EC barrier dysfunction. Consistent with the increase in TER, immunofluorescent studies demonstrated that PEG produced significant cytoskeletal rearrangement with formation of well-defined cortical actin rings and lamellipodia containing the actin-binding proteins, cortactin and MLCK, known participants in cell-matrix and cell-cell junctional adhesion. Finally, PEG challenge induced rapid alterations in levels of MAP kinase and MLC phosphorylation. In summary, PEG joins a number of EC barrier-regulatory agents which rapidly activate barrier-enhancing signal transduction pathways which target the cytoskeleton and provides a potential therapeutic strategy in inflammatory lung injury.

Indexed as

ActinsAcute Lung InjuryAdherens JunctionsCalcium SignalingCells, CulturedCytoskeletonDose-Response Relationship, DrugElectric ImpedanceEndothelial CellsHumansLungMicroscopy, FluorescenceMicroscopy, VideoMolecular WeightPolyethylene GlycolsSignal TransductionActinsPolyethylene GlycolsTetradecanoylphorbol AcetateThrombin

Identifiers

PMID19121327
PMCPMC3736723
OpenAlexW2056078569

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.