Evidence map›Paper›PMID 22532679›Full record

ArticleJournal of virology2012

Pathogenic Old World arenaviruses inhibit TLR2/Mal-dependent proinflammatory cytokines in vitro.

Melissa W Hayes, Ricardo Carrion, Jerritt Nunneley, Andrei E Medvedev, Maria S Salvato, Igor S Lukashevich

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

19 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Lassa Fever Natural History and Clinical Management.Current topics in microbiology and immunology · 2023
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  6. Article
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  12. Toll-like receptor polymorphisms, inflammatory and infectious diseases, allergies, and cancer.Journal of interferon & cytokine research : the official journal of the International Society for Interferon and Cytokine Research · 2013
    Review
  13. Review
  14. Article
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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

6 authors at 3 institutions in 1 country.

Melissa W HayesInstitute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, USA.
Ricardo Carrion
Jerritt Nunneley
Andrei E Medvedev
Maria S Salvato
Igor S Lukashevich
University of Maryland, Baltimore · USTexas Biomedical Research Institute · USUniversity of Louisville · US

Funding

Development of New Bivalent Cross-Protective Arenaviral VaccinesR01AI093450 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI LUKASHEVICH, IGOR S., PUSHKO, PETER M. · 2011 to 2015
$3.9M
Recombinant Yellow Fever 17D-Lassa VaccineR01AI068961 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI SALVATO, MARIA S. · 2007 to 2009
$1.4M
NIAID NIH HHS R01 AI068961NIAID NIH HHS R01AI068961NIAID NIH HHS R01 AI093450NIAID NIH HHS R01AI093450
6 · The paper itself

Abstract

Lymphocytic choriomeningitis virus (LCMV), the prototype arenavirus, and Lassa virus (LASV), the causative agent of Lassa fever (LF), have extensive strain diversity and significant variations in pathogenicity for humans and experimental animals. The WE strain of LCMV (LCMV-WE), but not the Armstrong (Arm) strain, induces a fatal LF-like disease in rhesus macaques. We also demonstrated that LASV infection of human macrophages and endothelial cells resulted in reduced levels of proinflammatory cytokines. Here we have shown that cells infected with LASV or with LCMV-WE suppressed Toll-like receptor 2 (TLR2)-dependent proinflammatory cytokine responses. The persisting isolate LCMV clone 13 (CL13) also failed to stimulate interleukin-6 (IL-6) in macrophages. In contrast, nonpathogenic Mopeia virus, which is a genetic relative of LASV and LCMV-Arm induced robust responses that were TLR2/Mal dependent, required virus replication, and were enhanced by CD14. Superinfection experiments demonstrated that the WE strain of LCMV inhibited the Arm-mediated IL-8 response during the early stage of infection. In cells transfected with the NF-κB-luciferase reporter, infection with LCMV-Arm resulted in the induction of NF-κB, but cells infected with LCMV-WE and CL13 did not. These results suggest that pathogenic arenaviruses suppress NF-κB-mediated proinflammatory cytokine responses in infected cells.

Indexed as

Immune EvasionAnimalsCell LineCytokinesHumansLassa virusLymphocytic choriomeningitis virusMembrane Transport ProteinsMiceMice, Inbred C57BLMice, KnockoutMyelin and Lymphocyte-Associated Proteolipid ProteinsMyelin ProteinsNF-kappa BProteolipidsToll-Like Receptor 2CytokinesMAL protein, humanMal protein, mouseMembrane Transport ProteinsMyelin and Lymphocyte-Associated Proteolipid ProteinsMyelin ProteinsNF-kappa BProteolipidsTLR2 protein, humanTlr2 protein, mouseToll-Like Receptor 2

Identifiers

PMID22532679
PMCPMC3416321
OpenAlexW1985221631

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.