Evidence map›Paper›PMID 23022668›Full record

ArticleMicrobial pathogenesis2013

Histophilus somni causes extracellular trap formation by bovine neutrophils and macrophages.

Katrina M Hellenbrand, Katelyn M Forsythe, Jose J Rivera-Rivas, Charles J Czuprynski, Nicole A Aulik

Abstract read
In one paragraph

Article in Microbial pathogenesis, 2013. 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
3.8field-weighted citation impact, top 7% 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, 66 citations in OpenAlex.

  1. Review
  2. Article
  3. A Comprehensive Review of the Bovine Immune Response to Pathogens.International journal of molecular sciences · 2025
    Review
  4. Review
  5. Article
  6. Macrophage extracellular traps are induced by Mycoplasma bovis in bovine macrophages through NADPH oxidase/ROS-dependent manner and their antibacterial efficacy.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Article
  7. Article
  8. Review
  9. Review
  10. Stimulator of Interferon Genes (STING) PromotesFrontiers in cell and developmental biology · 2022
    Article
  11. Review
  12. CanPolish journal of microbiology · 2021
    Article
  13. Review
  14. Review
  15. Frontiers in cellular and infection microbiology · 2021
    Article
  16. The Immunology of Bovine Respiratory Disease: Recent Advancements.The Veterinary clinics of North America. Food animal practice · 2020
    Review
  17. Article
  18. Article
  19. Review
  20. The Role of Macrophages inFrontiers in immunology · 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

5 authors at 2 institutions in 1 country.

Katrina M HellenbrandDepartment of Pathobiological Sciences, University of Wisconsin - Madison, Madison, WI 53706, USA.
Katelyn M Forsythe
Jose J Rivera-Rivas
Charles J Czuprynski
Nicole A Aulik
University of Wisconsin–Madison · USWinona State University · US

Funding

Comparative Biomedical Sciences Training ProgramT32OD010423 · OD · UNIVERSITY OF WISCONSIN-MADISON · PI Marulasiddappa Suresh · 2012 to 2026
$5.0M
6 · The paper itself

Abstract

Histophilus somni (formerly Haemophilus somnus) is a Gram-negative pleomorphic coccobacillus that causes respiratory, reproductive, cardiac and neuronal diseases in cattle. H. somni is a member of the bovine respiratory disease complex that causes severe bronchopneumonia in cattle. Previously, it has been reported that bovine neutrophils and macrophages have limited ability to phagocytose and kill H. somni. Recently, it was discovered that bovine neutrophils and macrophages produce extracellular traps in response to Mannheimia haemolytica, another member of the bovine respiratory disease complex. In this study, we demonstrate that H. somni also causes extracellular trap production by bovine neutrophils in a dose- and time-dependent manner, which did not coincide with the release of lactate dehydrogenase, a marker for necrosis. Neutrophil extracellular traps were produced in response to outer membrane vesicles, but not lipooligosacchride alone. Using scanning electron microscopy and confocal microscopy, we observed H. somni cells trapped within a web-like structure. Further analyses demonstrated that bovine neutrophils trapped and killed H. somni in a DNA-dependent manner. Treatment of DNA extracellular traps with DNase I freed H. somni cells and diminished bacterial death. Treatment of bovine monocyte-derived macrophages with H. somni cells also caused macrophage extracellular trap formation. These findings suggest that extracellular traps may play a role in the host response to H. somni infection in cattle.

Indexed as

AnimalsCattleDNAMacrophagesMicrobial ViabilityMicroscopy, ConfocalMicroscopy, Electron, ScanningNeutrophilsPasteurellaceaeDNA

Identifiers

PMID23022668
PMCPMC7125803
OpenAlexW2034918331

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.