Evidence map›Paper›PMID 25987163›Full record

ArticleLab on a chip2015

Whole blood human neutrophil trafficking in a microfluidic model of infection and inflammation.

Bashar Hamza, 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 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
4.2field-weighted citation impact, top 5% 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, 61 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Integration of immune cells in organs-on-chips: a tutorial.Frontiers in bioengineering and biotechnology · 2023
    Review
  5. Journal of oral microbiology · 2023
    Article
  6. Article
  7. Review
  8. Review
  9. Frontiers in immunology · 2022
    Article
  10. Neutrophil dysfunction in cystic fibrosis.Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society · 2021
    Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Differential Monocyte Actuation in a Three-Organ Functional Innate Immune System-on-a-Chip.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2020
    Article
  19. Article
  20. Microfluidic devices for neutrophil chemotaxis studies.Journal of translational medicine · 2020
    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

2 authors at 2 institutions in 2 countries.

Bashar HamzaBioMEMS Resource Center, Department of Surgery, Massachusetts General Hospital, Boston, MA 02129, USA.
Daniel Irimia
Harvard University · USMassachusetts General Hospital · US

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
Microfluidic tools for probing neutrophil reversed migrationR21AI113937 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI IRIMIA, DANIEL · 2015 to 2016
$479k
NIAID NIH HHS R21 AI113937NIBIB NIH HHS EB0025003NIBIB NIH HHS P41 EB002503NIGMS NIH HHS GM092804NIGMS NIH HHS R01 GM092804
6 · The paper itself

Abstract

Appropriate inflammatory responses to wounds and infections require adequate numbers of neutrophils arriving at injury sites. Both insufficient and excessive neutrophil recruitment can be detrimental, favouring systemic spread of microbes or triggering severe tissue damage. Despite its importance in health and disease, the trafficking of neutrophils through tissues remains difficult to control and the mechanisms regulating it are insufficiently understood. These mechanisms are also complex and difficult to isolate using traditional in vivo models. Here we designed a microfluidic model of tissue infection/inflammation, in which human neutrophils emerge from a droplet-size samples of whole blood and display bi-directional traffic between this and micro-chambers containing chemoattractant and microbe-like particles. Two geometrical barriers restrict the entrance of red blood cells from the blood to the micro-chambers and simulate the mechanical function of the endothelial barrier separating the cells in blood from cells in tissues. We found that in the presence of chemoattractant, the number of neutrophils departing the chambers by retrotaxis is in dynamic equilibrium with the neutrophils recruited by chemotaxis. We also found that in the presence of microbe-like particles, the number of neutrophils trapped in the chambers is proportional to the number of particles. Together, the dynamic equilibrium between migration, reversed-migration and trapping processes determine the optimal number of neutrophils at a site. These neutrophils are continuously refreshed and responsive to the number of microbes. Further studies using this infection-inflammation-on-a-chip-model could help study the processes of inflammation resolution. The new in vitro experimental tools may also eventually help testing new therapeutic strategies to limit neutrophil accumulation in tissues during chronic inflammation, without increasing the risk for infections.

Indexed as

Models, ImmunologicalCell SeparationChemotaxis, LeukocyteEquipment DesignErythrocytesHumansInfectionsInflammationMicrofluidic Analytical TechniquesNeutrophils

Identifiers

PMID25987163
PMCPMC4457540
OpenAlexW2170629203

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.