Evidence map›Paper›PMID 20375616›Full record

ArticleJournal of innate immunity2009

Eosinophils utilize multiple chemokine receptors for chemotaxis to the parasitic nematode Strongyloides stercoralis.

Louis H Stein, Kevin M Redding, James J Lee, Thomas J Nolan, Gerhard A Schad, James B Lok, David Abraham

Open access · bronzeAbstract read
In one paragraph

Article in Journal of innate immunity, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

16 citing papers in PubMed, 32 citations in OpenAlex.

  1. Subsets of Eosinophils in Asthma, a Challenge for Precise Treatment.International journal of molecular sciences · 2023
    Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Contribution of IL-33-activated type II innate lymphoid cells to pulmonary eosinophilia in intestinal nematode-infected mice.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
  13. Review
  14. Article
  15. Article
  16. Eosinophils in health and disease: the LIAR hypothesis.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2010
    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

7 authors at 3 institutions in 1 country.

Louis H SteinDepartment of Microbiology and Immunology, Thomas Jefferson University, Philadelphia, PA 19107, USA.
Kevin M Redding
James J Lee
Thomas J Nolan
Gerhard A Schad
James B Lok
David Abraham
Thomas Jefferson University · USUniversity of Pennsylvania · USMayo Clinic in Arizona · US

Funding

INSULIN-LIKE SIGNALING IN PARASITIC NEMATODE DEVELOPMENTR01AI050668 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI HERBERT, DE'BROSKI R · 2002 to 2023
$7.1M
HUMAN STRONGYLOIDIASIS MODEL DEVELOPMENTR01AI022662 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI LOK, JAMES B · 1985 to 2012
$3.7M
ROLE OF EOSINOPHILS IN IMMUNITY TO S STERCORALISR01AI047189 · NIAID · THOMAS JEFFERSON UNIVERSITY · PI ABRAHAM, DAVID · 2001 to 2005
$1.9M
NIAID NIH HHS R01 AI022662NIAID NIH HHS R01 AI047189NIAID NIH HHS R01 AI050668NIAID NIH HHS R01 AI47189NIAID NIH HHS R01 AI 50668PHS HHS R01 A1 22662
6 · The paper itself

Abstract

Protective innate immunity to the nematode Strongyloides stercoralis requires eosinophils in the parasite killing process. Experiments were performed to determine if an extract of S. stercoralis would trigger eosinophil chemotaxis, and to then compare the chemotactic migration response, including second messenger signals and receptors, to those mechanisms triggered by host chemoattractants. Eosinophils undergo both chemotaxis and chemokinesis to soluble parasite extract in transwell plates. Pretreatment of eosinophils with pertussis toxin, a G protein-coupled receptor inhibitor, inhibited migration of the eosinophils to the parasite extract. Likewise, blocking PI3K, tyrosine kinase, p38 and p44/42 inhibited eosinophil chemotaxis to parasite extract. Furthermore, CCR3, CXCR4 or CXCR2 antagonists significantly inhibited eosinophil chemotaxis to the parasite extract. Molecular weight fractionation of parasite extract revealed that molecules attracting eosinophils were present in several fractions, with molecules greater than 30 kDa being the most potent. Treating the extract with proteinase K or chitinase significantly inhibited its ability to induce chemotaxis, thereby demonstrating that the chemoattractants were both protein and chitin. Therefore, chemoattractants derived from parasites and host species stimulate similar receptors and second messenger signals to induce eosinophil chemotaxis. Parasite extract stimulates multiple receptors on the eosinophil surface, which ensures a robust innate immune response to the parasite.

Indexed as

AnimalsAntigens, HelminthChemotaxis, LeukocyteEosinophilsInterleukin-5MiceMice, TransgenicReceptors, ChemokineSignal TransductionStrongyloides stercoralisStrongyloidiasisAntigens, HelminthInterleukin-5Receptors, Chemokine

Identifiers

PMID20375616
PMCPMC2919510
OpenAlexW2056893677

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.