Evidence map›Paper›PMID 22260922›Full record

ArticleThe American journal of pathology2012

Plasmodium falciparum histones induce endothelial proinflammatory response and barrier dysfunction.

Mark R Gillrie, Kristine Lee, D Channe Gowda, Shevaun P Davis, Marc Monestier, Liwang Cui, Tran Tinh Hien, Nicholas P J Day, May Ho

Open access · hybridAbstract read
In one paragraph

Article in The American journal of pathology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 1 pooled it
7.5field-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

70 citing papers in PubMed, 1 synthesis or guideline pooled it, 117 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Disseminated intravascular coagulation.Journal of intensive care · 2025
    Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Circulating Histones to Detect and Monitor the Progression of Cancer.International journal of molecular sciences · 2023
    Review
  16. Article
  17. Article
  18. The IL-33/ST2 Pathway in Cerebral Malaria.International journal of molecular sciences · 2022
    Review
  19. Article
  20. Article

10 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

9 authors at 5 institutions in 3 countries.

Mark R GillrieDepartment of Microbiology Immunology & Infectious Diseases, University of Calgary, Alberta, Canada.
Kristine LeeDepartment of Microbiology Immunology & Infectious Diseases, University of Calgary, Alberta, Canada.
D Channe GowdaDepartment of Biochemistry and Molecular Biology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania.
Shevaun P DavisDepartment of Microbiology Immunology & Infectious Diseases, University of Calgary, Alberta, Canada.
Marc MonestierTemple Autoimmunity Center, Department of Microbiology and Immunology, Temple University School of Medicine, Philadelphia, Pennsylvania.
Liwang CuiDepartment of Entomology, Pennsylvania State University, University Park, Pennsylvania.
Tran Tinh HienOxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam.
Nicholas P J DayOxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam.
May HoDepartment of Microbiology Immunology & Infectious Diseases, University of Calgary, Alberta, Canada. Electronic address: mho@ucalgary.ca.
University of Calgary · CAPennsylvania State University · USHospital for Tropical Diseases · VNOxford University Clinical Research Unit · VNTemple University · US

Funding

CYTOADHERENCE IN MATERNAL MALARIAR21AI045086 · NIAID · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI GOWDA, CHANNE D · 2004 to 2004
$296k
CIHR MT14104NIAID NIH HHS R21 AI045086Wellcome Trust 089275
6 · The paper itself

Abstract

Plasmodium falciparum is a protozoan parasite of human erythrocytes that causes the most severe form of malaria. Severe P. falciparum infection is associated with endothelial activation and permeability, which are important determinants of the outcome of the infection. How endothelial cells become activated is not fully understood, particularly with regard to the effects of parasite subcomponents. We demonstrated that P. falciparum histones extracted from merozoites (HeH) directly stimulated the production of IL-8 and other inflammatory mediators by primary human dermal microvascular endothelial cells through a signaling pathway that involves Src family kinases and p38 MAPK. The stimulatory effect of HeH and recombinant P. falciparum H3 (PfH3) was abrogated by histone-specific antibodies. The release of nuclear contents on rupture of infected erythrocytes was captured by live cell imaging and confirmed by detecting nucleosomes in the supernatants of parasite cultures. HeH and recombinant parasite histones also induced endothelial permeability through a charge-dependent mechanism that resulted in disruption of junctional protein expression and cell death. Recombinant human activated protein C cleaved HeH and PfH3 and abrogated their proinflammatory effects. Circulating nucleosomes of both human and parasite origin were detected in the plasma of patients with falciparum malaria and correlated positively with disease severity. These results support a pathogenic role for both host- and pathogen-derived histones in P. falciparum-caused malaria.

Indexed as

MerozoitesPlasmodium falciparumAnimalsCapillary PermeabilityCells, CulturedEndothelium, VascularHistonesHumansInterleukin-8Life Cycle StagesLungMalaria, FalciparumMAP Kinase Signaling SystemMicrovesselsp38 Mitogen-Activated Protein KinasesProtein CHistonesInterleukin-8p38 Mitogen-Activated Protein KinasesProtein CRecombinant Proteinssrc-Family Kinases

Identifiers

PMID22260922
PMCPMC3448071
OpenAlexW2009529315

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.