Evidence map›Paper›PMID 19153226›Full record

ArticleJournal of virology2009

Characterization of Lassa virus cell entry and neutralization with Lassa virus pseudoparticles.

François-Loic Cosset, Philippe Marianneau, Geraldine Verney, Fabrice Gallais, Noel Tordo, Eve-Isabelle Pécheur, Jan ter Meulen, Vincent Deubel, Birke Bartosch

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

42 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Entry inhibitors as arenavirus antivirals.Frontiers in microbiology · 2024
    Review
  10. Article
  11. Article
  12. Lassa Virus Genetics.Current topics in microbiology and immunology · 2023
    Article
  13. Pseudotyped Viruses.Advances in experimental medicine and biology · 2023
    Article
  14. Review
  15. Article
  16. Article
  17. Lassa Virus Treatment Options.Microorganisms · 2021
    Review
  18. Article
  19. Article
  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

9 authors at 6 institutions in 3 countries.

François-Loic CossetUniversité de Lyon, UCB-Lyon 1, IFR128, INSERM, U758, and Ecole Normale Supérieure de Lyon, Lyon F-69007, France. flcosset@ens-lyon.fr
Philippe Marianneau
Geraldine Verney
Fabrice Gallais
Noel Tordo
Eve-Isabelle Pécheur
Jan ter Meulen
Vincent Deubel
Birke Bartosch
Institut Pasteur · FRÉcole Normale Supérieure de Lyon · FRInserm · FRInstitut de Biologie et de Chimie des Protéines · FRInstitut Pasteur of Shanghai · CNPhilipps University of Marburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The cell entry and humoral immune response of the human pathogen Lassa virus (LV), a biosafety level 4 (BSL4) Old World arenavirus, are not well characterized. LV pseudoparticles (LVpp) are a surrogate model system that has been used to decipher factors and routes involved in LV cell entry under BSL2 conditions. Here, we describe LVpp, which are highly infectious, with titers approaching those obtained with pseudoparticles displaying G protein of vesicular stomatitis virus and their the use for the characterization of LV cell entry and neutralization. Upon cell attachment, LVpp utilize endocytic vesicles for cell entry as described for many pH-dependent viruses. However, the fusion of the LV glycoproteins is activated at unusually low pH values, with optimal fusion occurring between pH 4.5 and 3, a pH range at which fusion characteristics of viral glycoproteins have so far remained largely unexplored. Consistent with a shifted pH optimum for fusion activation, we found wild-type LV and LVpp to display a remarkable resistance to exposure to low pH. Finally, LVpp allow the fast and quantifiable detection of neutralizing antibodies in human and animal sera and will thus facilitate the study of the humoral immune response in LV infections.

Indexed as

Virus InternalizationAnimalsAntibodies, ViralCell LineEndocytosisEndosomesHumansHydrogen-Ion ConcentrationLassa virusNeutralization TestsVirosomesAntibodies, ViralVirosomes

Identifiers

PMID19153226
PMCPMC2655582
OpenAlexW2079424087

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.