Evidence map›Paper›PMID 19023690›Full record

ArticleMicrocirculation (New York, N.Y. : 1994)2009

Event-tracking model of adhesion identifies load-bearing bonds in rolling leukocytes.

Maria K Pospieszalska, Alexander Zarbock, John E Pickard, Klaus Ley

Erratum issuedAbstract read
In one paragraph

Article in Microcirculation (New York, N.Y. : 1994), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
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

14 citing papers in PubMed.

  1. EndothelialArteriosclerosis, thrombosis, and vascular biology · 2022
    Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Multiscale computational models of complex biological systems.Annual review of biomedical engineering · 2013
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

4 authors.

Maria K PospieszalskaDivision of Inflammation Biology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA.
Alexander Zarbock
John E Pickard
Klaus Ley

Funding

Biomechanics of Leukocytes and Molecular Imaging AgentsR01EB002185 · NIBIB · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI LAWRENCE, MICHAEL BRANDEAU · 2003 to 2010
$5.7M
NIBIB NIH HHS 2R01 EB 002185NIBIB NIH HHS R01 EB002185
6 · The paper itself

Abstract

objectivesP-selectin binding to P-selectin glycoprotein ligand-1 (PSGL)-1 mediates leukocyte rolling under conditions of inflammation and injury. The aims of this study were to develop an efficient, high temporal resolution model for direct simulation of leukocyte rolling and conduct a study of load-bearing bonds using the model. MATERIALS AND

methodsA stochastic pi-calculus-driven event-tracking model of adhesion (ETMA) was developed and compared with experimental data. Multiple simulations for each case were conducted to obtain high-confidence numerical characteristics of leukocyte rolling.

resultsLeukocyte rolling and the underlying P-selectin-PSGL-1 bonds were studied under low wall shear rate (25-50 s(-1)) conditions from measured parameters of leukocyte rolling and bond properties. For the first time, the location, number, lifetime, history, and kinetics of load-bearing bonds and their influence on cell rolling were identified and instantaneous cell displacements, translational and rotational velocities, and cell-substrate distances derived. The model explains the commonly observed "stop-start" type rolling behavior and reveals that a few load-bearing bonds are sufficient to support rolling, while a large number of bonds dissociate before becoming load bearing.

conclusionsETMA provides a method for more precise, direct simulation of leukocyte rolling at low wall shear rates and sets a foundation upon which further refinements can be introduced.

Indexed as

Models, CardiovascularAnimalsCell AdhesionHumansLeukocyte RollingLeukocytesMembrane GlycoproteinsP-SelectinMembrane GlycoproteinsP-SelectinP-selectin ligand protein

Identifiers

PMID19023690
PMCPMC2745096

What OpenQuestion holds

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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.