Evidence map›Paper›PMID 19043558›Full record

ArticlePLoS pathogens2008

Migratory dermal dendritic cells act as rapid sensors of protozoan parasites.

Lai Guan Ng, Alice Hsu, Michael A Mandell, Ben Roediger, Christoph Hoeller, Paulus Mrass, Amaya Iparraguirre, Lois L Cavanagh, James A Triccas, Stephen M Beverley and 2 more

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 119 papers.

0numbers the graph read from it
0cells of the map it votes in
119citing papers in PubMed
5.6field-weighted citation impact, top 3% 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

119 citing papers in PubMed, 227 citations in OpenAlex.

  1. Article
  2. Article
  3. Plasticity in leukocyte migration during haematopoiesis and inflammation.Journal of muscle research and cell motility · 2025
    Review
  4. Apoptosis and Cell Clearance in Skin Wound Healing.Advances in experimental medicine and biology · 2025
    Review
  5. Article
  6. Review
  7. Article
  8. Frontiers in cell and developmental biology · 2023
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Reporter gene systems: A powerful tool forCurrent research in microbial sciences · 2022
    Article
  15. How cell migration helps immune sentinels.Frontiers in cell and developmental biology · 2022
    Review
  16. Use ofFrontiers in microbiology · 2022
    Article
  17. Article
  18. Article
  19. Article
  20. Microorganisms · 2021
    Article

59 more citing papers are in PubMed but not listed here.

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

12 authors at 5 institutions in 3 countries.

Lai Guan NgThe Wistar Institute, Philadelphia, Pennsylvania, USA.
Alice Hsu
Michael A Mandell
Ben Roediger
Christoph Hoeller
Paulus Mrass
Amaya Iparraguirre
Lois L Cavanagh
James A Triccas
Stephen M Beverley
Phillip Scott
Wolfgang Weninger
The Wistar Institute · USCentenary Institute · AUUniversity of Pennsylvania · USUniversity of Sydney · AUWashington University in St. Louis · US

Funding

GLYCOSYLATION MUTANTS OF LEISHMANIAR01AI031078 · NIAID · WASHINGTON UNIVERSITY · PI BEVERLEY, STEPHEN M · 1992 to 2019
$11.4M
MOLECULAR GENETICS OF LEISHMANIA USING DNA TRANSFECTIONR01AI029646 · NIAID · WASHINGTON UNIVERSITY · PI BEVERLEY, STEPHEN M · 1990 to 2015
$9.3M
NIAID NIH HHS AI29646NIAID NIH HHS AI31078NIAID NIH HHS R01 AI029646NIAID NIH HHS R01 AI031078
6 · The paper itself

Abstract

Dendritic cells (DC), including those of the skin, act as sentinels for intruding microorganisms. In the epidermis, DC (termed Langerhans cells, LC) are sessile and screen their microenvironment through occasional movements of their dendrites. The spatio-temporal orchestration of antigen encounter by dermal DC (DDC) is not known. Since these cells are thought to be instrumental in the initiation of immune responses during infection, we investigated their behavior directly within their natural microenvironment using intravital two-photon microscopy. Surprisingly, we found that, under homeostatic conditions, DDC were highly motile, continuously crawling through the interstitial space in a Galpha(i) protein-coupled receptor-dependent manner. However, within minutes after intradermal delivery of the protozoan parasite Leishmania major, DDC became immobile and incorporated multiple parasites into cytosolic vacuoles. Parasite uptake occurred through the extension of long, highly dynamic pseudopods capable of tracking and engulfing parasites. This was then followed by rapid dendrite retraction towards the cell body. DDC were proficient at discriminating between parasites and inert particles, and parasite uptake was independent of the presence of neutrophils. Together, our study has visualized the dynamics and microenvironmental context of parasite encounter by an innate immune cell subset during the initiation of the immune response. Our results uncover a unique migratory tissue surveillance program of DDC that ensures the rapid detection of pathogens.

Indexed as

AnimalsCell MovementDendritic CellsEukaryotaGTP-Binding Protein alpha SubunitsImmunity, InnateLeishmania majorLuminescent ProteinsMiceMicroscopyPhagocytosisPseudopodiaSkinGTP-Binding Protein alpha SubunitsLuminescent Proteins

Identifiers

PMID19043558
PMCPMC2583051
OpenAlexW2112777571

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.