Evidence map›Paper›PMID 15385471›Full record

ArticleInfection and immunity2004

Neither neutrophils nor reactive oxygen species contribute to tissue damage during Pneumocystis pneumonia in mice.

Steve D Swain, Terry W Wright, Peter M Degel, Francis Gigliotti, Allen G Harmsen

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

41 citing papers in PubMed, 70 citations in OpenAlex.

  1. Review
  2. Review
  3. Immune responses of different hosts toEuropean respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  4. mBio · 2024
    Article
  5. Article
  6. Article
  7. Journal of fungi (Basel, Switzerland) · 2022
    Review
  8. Immune Response inJournal of fungi (Basel, Switzerland) · 2021
    Review
  9. Article
  10. Pathogens (Basel, Switzerland) · 2021
    Review
  11. Article
  12. Article
  13. Article
  14. Neutrophils in tissue injury and repair.Cell and tissue research · 2018
    Review
  15. Article
  16. Survival afterSouthern African journal of HIV medicine · 2016
    Article
  17. Article
  18. Article
  19. Pneumocystis.Cold Spring Harbor perspectives in medicine · 2014
    Review
  20. 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

5 authors at 2 institutions in 1 country.

Steve D SwainDepartment of Veterinary Molecular Biology, Montana State University, Bozeman, Montana 59717, USA. uvsss@montana.edu
Terry W Wright
Peter M Degel
Francis Gigliotti
Allen G Harmsen
Montana State University · USUniversity of Rochester · US

Funding

PROJECT4--- THE INFLAMMATORY RESPONSE: IMPACT ON THE OUTCOME OF PCPP01HL071659 · NHLBI · UNIVERSITY OF ROCHESTER · PI GIGLIOTTI, FRANCIS · 2002 to 2006
$7.4M
RECONSTITUTION OF IMMUNITY TO PNEUMOCYSTIS IN SCID MICER01HL055002 · NHLBI · TRUDEAU INSTITUTE, INC. · PI HARMSEN, ALLEN G · 1995 to 2009
$3.5M
P CARINII-EPITHELIAL INTERACTIONS MEDIATE INFLAMMATIONR01HL064559 · NHLBI · UNIVERSITY OF ROCHESTER · PI WRIGHT, TERRY W · 1999 to 2003
$1.2M
NHLBI NIH HHS HL 064559NHLBI NIH HHS HL 55002NHLBI NIH HHS HL 71659NHLBI NIH HHS P01 HL071659NHLBI NIH HHS R01 HL055002NHLBI NIH HHS R01 HL064559
6 · The paper itself

Abstract

Neutrophils are implicated in the damage of lung tissue in many disease states, including infectious diseases and environmental insults. These effects may be due to oxidative or nonoxidative functions of the neutrophil or both. We examined the role of neutrophils in pulmonary damage during infection with the opportunistic fungal pathogen Pneumocystis sp. in four mouse models of neutrophil dysfunction. These were (i) a knockout of the gp91(phox) component of NADPH oxidase, in which reactive oxygen species (ROS) production is greatly reduced; (ii) a double knockout of gp91(phox) and inducible nitric oxide synthase, in which ROS and nitric oxide production is greatly decreased; (iii) a knockout of the chemokine receptor CXCR2, in which accumulation of intra-alveolar neutrophils is severely diminished; and (iv) antibody depletion of circulating neutrophils in wild-type mice with the monoclonal antibody RB6. Surprisingly, in each case, indicators of pulmonary damage (respiratory rates, arterial oxygen partial pressures, and intra-alveolar albumin concentrations) were the same in knockout mice and comparable wild-type mice. Therefore, whereas neutrophils are a valid correlative marker of lung damage during Pneumocystis infection, neither neutrophils nor ROS appear to be the causative agent of tissue damage. We also show that there is no difference in Pneumocystis burdens between wild-type and knockout mice, which supports the idea that neutrophils do not have a major role in the clearance of this organism.

Indexed as

AnimalsBronchoalveolar LavageCD4-Positive T-LymphocytesGene DeletionInflammationLeukocyte CountLungMembrane GlycoproteinsMiceMice, Inbred BALB CMice, Inbred C57BLMice, KnockoutNADPH Oxidase 2NADPH OxidasesNeutrophilsNitric Oxide SynthaseCybb protein, mouseMembrane GlycoproteinsNADPH Oxidase 2NADPH OxidasesNitric Oxide SynthaseNitric Oxide Synthase Type IINos2 protein, mouseReactive Oxygen SpeciesReceptors, Interleukin-8B

Identifiers

PMID15385471
PMCPMC517543
OpenAlexW2105726794

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.