Evidence map›Paper›PMID 21632714›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2011

Migrational guidance of neutrophils is mechanotransduced via high-affinity LFA-1 and calcium flux.

Neha Dixit, Itsukyo Yamayoshi, Ari Nazarian, Scott I Simon

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

39 citing papers in PubMed, 76 citations in OpenAlex.

  1. Trial
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  7. Exploration (Beijing, China) · 2024
    Review
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  12. Keratocytes migrate against flow with a roly-poly-like mechanism.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
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  18. Visualization of integrin molecules by fluorescence imaging and techniques.Biocell : official journal of the Sociedades Latinoamericanas de Microscopia Electronica ... et. al · 2021
    Article
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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

4 authors at 1 institution in 1 country.

Neha DixitDepartment of Biomedical Engineering, University of California, Davis, Davis, CA 95616, USA.
Itsukyo Yamayoshi
Ari Nazarian
Scott I Simon
University of California, Davis · US

Funding

Staff InvestigatorsP30CA093373 · NCI · UNIVERSITY OF CALIFORNIA DAVIS · PI Laura Marcu · 2002 to 2026
$84.9M
Outside-in Mechanotransduced Inflammatory TargetsR01AI047294 · NIAID · UNIVERSITY OF CALIFORNIA DAVIS · PI SIMON, SCOTT IRWIN · 1999 to 2021
$7.0M
NCI NIH HHS P30 CA093373NIAID NIH HHS R01 AI047294PHS HHS A1472294
6 · The paper itself

Abstract

Acute inflammation triggers the innate immune response of neutrophils that efficiently traffic from the bloodstream to concentrate at high numbers at the site of tissue infection or wounding. A gatekeeper in this process is activation of β(2) integrins, which form bond clusters with ICAM-1 on the endothelial surface. These bond clusters serve dual functions of providing adhesive strength to anchor neutrophils under the shear forces of blood flow and directional guidance for cell polarization and subsequent transmigration on inflamed endothelium. We hypothesized that shear forces transmitted through high-affinity LFA-1 facilitates the cooperation with the calcium release-activated channel Orai1 in directing localized cytoskeletal activation and directed migration. By using vascular mimetic microfluidic channels, we observed neutrophil arrest on a substrate of either ICAM-1 or allosteric Abs that stabilize a high- or low-affinity conformation of LFA-1. Neutrophils captured via low-affinity LFA-1 did not exhibit intracellular calcium flux, F-actin polymerization, cell polarization, or directional migration under shear flow. In contrast, high-affinity LFA-1 provided orientation along a uropod-pseudopod axis that required calcium flux through Orai1. We demonstrate how the shear stress of blood flow can transduce distinct outside-in signals at focal sites of high-affinity LFA-1 that provide contact-mediated guidance for neutrophil emigration.

Indexed as

ActinsAdultAnimalsCalcium ChannelsCalcium SignalingCell AdhesionCell MovementCell PolarityHumansIntercellular Adhesion Molecule-1Lymphocyte Function-Associated Antigen-1Mechanotransduction, CellularMiceMice, Inbred C57BLMice, Inbred ICRNeutrophilsActinsCalcium ChannelsIntercellular Adhesion Molecule-1Lymphocyte Function-Associated Antigen-1ORAI1 ProteinOrai1 protein, mouse

Identifiers

PMID21632714
PMCPMC3414252
OpenAlexW2128445597

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.