Evidence map›Paper›PMID 25412288›Full record

ArticleLab on a chip2015

A neutrophil treadmill to decouple spatial and temporal signals during chemotaxis.

Alexander J Aranyosi, Elisabeth A Wong, Daniel Irimia

Abstract read
In one paragraph

Article in Lab on a chip, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Microfluidic devices for neutrophil chemotaxis studies.Journal of translational medicine · 2020
    Review
  9. Article
  10. Article
  11. 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

3 authors.

Alexander J Aranyosi *BioMEMS Resource Center, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Charlestown MA 02129.
Elisabeth A Wong *BioMEMS Resource Center, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Charlestown MA 02129.
Daniel IrimiaBioMEMS Resource Center, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Charlestown MA 02129.

Funding

Bio-MicroElectroMechanical Systems Resource CenterP41EB002503 · NIBIB · MASSACHUSETTS GENERAL HOSPITAL · PI TONER, MEHMET · 2004 to 2018
$17.4M
Neutrophil Decision Making in Confined Environments in Health and DiseaseR01GM092804 · NIGMS · MASSACHUSETTS GENERAL HOSPITAL · PI IRIMIA, DANIEL · 2010 to 2022
$4.3M
Concentration lock-on microdevices for the investigation of neutrophil chemotaxisR21AI076760 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI IRIMIA, DANIEL · 2009 to 2010
$467k
NIAID NIH HHS AI076760NIAID NIH HHS R21 AI076760NIBIB NIH HHS EB002503NIBIB NIH HHS P41 EB002503NIGMS NIH HHS GM092804NIGMS NIH HHS R01 GM092804
6 · The paper itself

Abstract

After more than 50 years of debates, the role of spatial and temporal gradients during cell chemotaxis is still a contentious matter. One major challenge is that when cells move in response to a heterogeneous chemical environment they are exposed to both spatial and temporal concentration changes. Even in the presence of perfectly stable chemical gradients, moving cells experience temporal changes of concentration simply by moving between locations with different chemical concentrations in a heterogeneous environment. Thus, the effects of the spatial and temporal stimuli cannot be dissociated and studied independently, hampering progress towards understanding the mechanisms of cell chemotaxis. Here we employ microfluidic and other engineering tools to build a system that accomplishes a function analogous to a treadmill at the cellular scale, holding a moving cell at a specified, unchanging location in a chemical gradient. Using this system, we decouple the spatial and temporal gradients around moving human neutrophils and find that temporal gradients are necessary for the directional persistence of human neutrophils during chemotaxis. Our results suggest that temporal chemoattractant changes are important during neutrophil migration and should be taken into account when deciphering the signalling pathways of cell chemotaxis.

Indexed as

Cell MovementCells, CulturedChemotaxisFluorescein-5-isothiocyanateHumansMicrofluidic Analytical TechniquesNeutrophilsFluorescein-5-isothiocyanate

Identifiers

PMID25412288
PMCPMC4268067

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.