Evidence map›Paper›PMID 22431645›Full record

ArticleInfection and immunity2012

Receptor-dependent and -independent immunomodulatory effects of phenol-soluble modulin peptides from Staphylococcus aureus on human neutrophils are abrogated through peptide inactivation by reactive oxygen species.

Huamei Forsman, Karin Christenson, Johan Bylund, Claes Dahlgren

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.2field-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

25 citing papers in PubMed, 58 citations in OpenAlex.

  1. Investigation into ligand selectivity and bias at the formyl peptide receptor family.The Journal of pharmacology and experimental therapeutics · 2026
    Article
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  5. Skin Cancer-AssociatedCancers · 2022
    Article
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  7. Frontiers in cellular and infection microbiology · 2020
    Article
  8. Article
  9. Frontiers in cellular and infection microbiology · 2018
    Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Staphylococcal manipulation of host immune responses.Nature reviews. Microbiology · 2015
    Review
  16. Review
  17. Review
  18. Article
  19. Review
  20. 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

4 authors at 1 institution in 1 country.

Huamei ForsmanDepartment of Rheumatology and Inflammation Research, University of Gothenburg, Gothenburg, Sweden.
Karin Christenson
Johan Bylund
Claes Dahlgren
University of Gothenburg · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The virulence and pathogenesis mechanisms of community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) strains depend on a newly described group of phenol-soluble modulin (PSM) peptides (the PSMα peptides) with cytolytic activity. These toxins are α-helical peptides with a formyl group at the N terminus, and they activate neutrophils through formyl peptide receptor 2 (FPR2), a function closely correlated to the capacity of staphylococcal species to cause invasive infections. The effects of two synthetic PSMα peptides were investigated, and we show that they utilize FPR2 and promote neutrophils to produce reactive oxygen species (ROS) which in turn trigger inactivation of the peptides. Independently of FPR2, the PSMα peptides also downregulate the neutrophil response to other stimuli and exert a cytolytic effect to which apoptotic neutrophils are more sensitive than viable cells. The novel immunomodulatory functions of the PSMα peptides were sensitive to ROS generated by the neutrophil myeloperoxidase (MPO)-H(2)O(2) system, suggesting a role for this enzyme system in counteracting bacterial virulence.

Indexed as

Bacterial ProteinsBacterial ToxinsCalciumGene Expression Regulation, BacterialGene Expression Regulation, EnzymologicHL-60 CellsHumansHydrogen PeroxideNeutrophilsPeroxidaseReactive Oxygen SpeciesStaphylococcus aureusSuperoxidesBacterial ProteinsBacterial ToxinsCalciumHydrogen PeroxidePeroxidaseReactive Oxygen Speciesstaphylococcal delta toxinSuperoxides

Identifiers

PMID22431645
PMCPMC3370598
OpenAlexW2169956642

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.