Evidence map›Paper›PMID 22768936›Full record

ArticleBiophysical journal2012

Shear-induced resistance to neutrophil activation via the formyl peptide receptor.

Michael J Mitchell, Michael R King

Open access · hybridAbstract read
In one paragraph

Article in Biophysical journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

21 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Neutrophils actively swell to potentiate rapid migration.bioRxiv : the preprint server for biology · 2024
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Leukocytes as carriers for targeted cancer drug delivery.Expert opinion on drug delivery · 2015
    Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Shear Stress Enhances Chemokine Secretion fromCellular and molecular bioengineering · 2013
    Article
  19. Article
  20. 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

2 authors at 1 institution in 1 country.

Michael J MitchellDepartment of Biomedical Engineering, Cornell University, Ithaca, New York, USA.
Michael R King
Cornell University · US

Funding

NHLBI NIH HHS HL018128
6 · The paper itself

Abstract

The application of fluid shear stress on leukocytes is critical for physiological functions including initial adhesion to the endothelium, the formation of pseudopods, and migration into tissues. The formyl peptide receptor (FPR) on neutrophils, which binds to formyl-methionyl-leucyl-phenylalanine (fMLP) and plays a role in neutrophil chemotaxis, has been implicated as a fluid shear stress sensor that controls pseudopod formation. The role of shear forces on earlier indicators of neutrophil activation, such as L-selectin shedding and α(M)β(2) integrin activation, remains unclear. Here, human neutrophils exposed to uniform shear stress (0.1-4.0 dyn/cm(2)) in a cone-and-plate viscometer for 1-120 min showed a significant reduction in both α(M)β(2) integrin activation and L-selectin shedding after stimulation with 0.5 nM of fMLP. Neutrophil resistance to activation was directly linked to fluid shear stress, as the response increased in a shear stress force- and time-dependent manner. Significant shear-induced loss of FPR surface expression on neutrophils was observed, and high-resolution confocal microscopy revealed FPR internalized within neutrophils. These results suggest that physiological shear forces alter neutrophil activation via FPR by reducing L-selectin shedding and α(M)β(2) integrin activation in the presence of soluble ligand.

Indexed as

Neutrophil ActivationShear StrengthBiomechanical PhenomenaDose-Response Relationship, DrugGene Expression RegulationHumansInterleukin-8L-SelectinMacrophage-1 AntigenNeutrophilsN-Formylmethionine Leucyl-PhenylalanineProtease InhibitorsProtein TransportReceptors, Formyl PeptideStress, MechanicalTime FactorsInterleukin-8L-SelectinMacrophage-1 AntigenN-Formylmethionine Leucyl-PhenylalanineProtease InhibitorsReceptors, Formyl Peptide

Identifiers

PMID22768936
PMCPMC3328724
OpenAlexW2162855446

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.