Evidence map›Paper›PMID 17890384›Full record

ArticleBiophysical journal2008

Enhancement of L-selectin, but not P-selectin, bond formation frequency by convective flow.

Christopher D Paschall, William H Guilford, Michael B Lawrence

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Review
  3. TCR-pMHC kinetics under force in a cell-free system show no intrinsic catch bond, but a minimal encounter duration before binding.Proceedings of the National Academy of Sciences of the United States of America · 2019
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  4. Article
  5. Article
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  8. Article
  9. Article
  10. The Effects of Load on E-Selectin Bond Rupture and Bond Formation.Cellular and molecular bioengineering · 2010
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Selectin catch-slip kinetics encode shear threshold adhesive behavior of rolling leukocytes.Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
  16. Article
  17. Article
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

3 authors at 1 institution in 1 country.

Christopher D PaschallDepartment of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, USA.
William H Guilford
Michael B Lawrence
University of Virginia · US

Funding

Selectin Control of Leukocyte Adhesion in ShearR01HL054614 · NHLBI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI LAWRENCE, MICHAEL BRANDEAU · 2003 to 2006
$1.7M
SEQUENTIAL MODEL OF LEUKOCYTE ROLLING AND ARREST IN FLOWR29HL054614 · NHLBI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI LAWRENCE, MICHAEL BRANDEAU · 1995 to 1999
–
NHLBI NIH HHS HL054614NHLBI NIH HHS R01 HL054614NHLBI NIH HHS R29 HL054614
6 · The paper itself

Abstract

L-selectin-mediated leukocyte rolling has been proposed to require a high rate of bond formation compared to that of P-selectin to compensate for its much higher off-rate. To test this hypothesis, a microbead system was utilized to measure relative L-selectin and P-selectin bond formation rates on their common ligand P-selectin glycoprotein ligand-1 (PSGL-1) under shear flow. Using video microscopy, we tracked selectin-coated microbeads to detect the formation frequency of adhesive tether bonds. From velocity distributions of noninteracting and interacting microbeads, we observed that tether bond formation rates for P-selectin on PSGL-1 decreased with increasing wall shear stress, from 0.14 +/- 0.04 bonds/microm at 0.2 dyn/cm(2) to 0.014 +/- 0.003 bonds/microm at 1.0 dyn/cm(2). In contrast, L-selectin tether bond formation increased from 0.017 +/- 0.005 bonds/microm at 0.2 dyn/cm(2) to 0.031 +/- 0.005 bonds/microm at 1.0 dyn/cm(2). L-selectin tether bond formation rates appeared to be enhanced by convective transport, whereas P-selectin rates were inhibited. The transition force for the L-selectin catch-slip transition of 44 pN/bond agreed well with theoretical models (Pereverzev et al. 2005. Biophys. J. 89:1446-1454). Despite catch bond behavior, hydrodymanic shear thresholding was not detected with L-selectin beads rolling on PSGL-1. We speculate that shear flow generated compressive forces may enhance L-selectin bond formation relative to that of P-selectin and that L-selectin bonds with PSGL-1 may be tuned for the compressive forces characteristic of leukocyte-leukocyte collisions during secondary capture on the blood vessel wall. This is the first report, to our knowledge, comparing L-selectin and P-selectin bond formation frequencies in shear flow.

Indexed as

Models, ChemicalAdhesivenessBinding SitesComputer SimulationL-SelectinMembrane GlycoproteinsMicrofluidicsProtein BindingP-SelectinShear StrengthStress, MechanicalL-SelectinMembrane GlycoproteinsP-SelectinP-selectin ligand protein

Identifiers

PMID17890384
PMCPMC2186251
OpenAlexW2087966520

What OpenQuestion holds

Textmetadata
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.