Evidence map›Paper›PMID 25140419›Full record

ArticleBiophysical journal2014

Quantitation of malaria parasite-erythrocyte cell-cell interactions using optical tweezers.

Alex J Crick, Michel Theron, Teresa Tiffert, Virgilio L Lew, Pietro Cicuta, Julian C Rayner

Abstract read
In one paragraph

Article in Biophysical journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
–field-weighted citation impact
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

33 citing papers in PubMed.

  1. Review
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  5. Review
  6. Article
  7. Article
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  9. Biophysical Tools and Concepts Enable Understanding of Asexual Blood Stage Malaria.Frontiers in cellular and infection microbiology · 2022
    Review
  10. Article
  11. Review
  12. Article
  13. Full-lengtheLife · 2020
    Article
  14. Review
  15. 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.

Alex J CrickCavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
Michel TheronWellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom.
Teresa TiffertDepartment of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom.
Virgilio L LewDepartment of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom.
Pietro CicutaCavendish Laboratory, University of Cambridge, Cambridge, United Kingdom. Electronic address: pc245@cam.ac.uk.
Julian C RaynerWellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom. Electronic address: jr9@sanger.ac.uk.

Funding

Wellcome Trust 098051
6 · The paper itself

Abstract

Erythrocyte invasion by Plasmodium falciparum merozoites is an essential step for parasite survival and hence the pathogenesis of malaria. Invasion has been studied intensively, but our cellular understanding has been limited by the fact that it occurs very rapidly: invasion is generally complete within 1 min, and shortly thereafter the merozoites, at least in in vitro culture, lose their invasive capacity. The rapid nature of the process, and hence the narrow time window in which measurements can be taken, have limited the tools available to quantitate invasion. Here we employ optical tweezers to study individual invasion events for what we believe is the first time, showing that newly released P. falciparum merozoites, delivered via optical tweezers to a target erythrocyte, retain their ability to invade. Even spent merozoites, which had lost the ability to invade, retain the ability to adhere to erythrocytes, and furthermore can still induce transient local membrane deformations in the erythrocyte membrane. We use this technology to measure the strength of the adhesive force between merozoites and erythrocytes, and to probe the cellular mode of action of known invasion inhibitory treatments. These data add to our understanding of the erythrocyte-merozoite interactions that occur during invasion, and demonstrate the power of optical tweezers technologies in unraveling the blood-stage biology of malaria.

Indexed as

Biomechanical PhenomenaCell AdhesionErythrocyte MembraneErythrocytesHost-Parasite InteractionsHumansMerozoitesOptical TweezersPlasmodium falciparum

Identifiers

PMID25140419
PMCPMC4142257

What OpenQuestion holds

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Registered trials

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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.