Evidence map›Paper›PMID 25820521›Full record

ArticleEukaryotic cell2015

In Vivo Function of PTEX88 in Malaria Parasite Sequestration and Virulence.

Joachim M Matz, Alyssa Ingmundson, Jean Costa Nunes, Werner Stenzel, Kai Matuschewski, Taco W A Kooij

Open access · diamondAbstract read
In one paragraph

Article in Eukaryotic cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
6.3field-weighted citation impact, top 4% 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

23 citing papers in PubMed, 42 citations in OpenAlex.

  1. Review
  2. Knock-sideways by inducible ER retrieval enables a unique approach for studyingProceedings of the National Academy of Sciences of the United States of America · 2023
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  5. Dissecting EXP2 sequence requirements for protein export in malaria parasites.Frontiers in cellular and infection microbiology · 2023
    Article
  6. Article
  7. Article
  8. Review
  9. A lipocalin mediates unidirectional heme biomineralization in malaria parasites.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. The Liver-StageFrontiers in immunology · 2019
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Interaction betweenFrontiers in cellular and infection microbiology · 2017
    Article
  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

6 authors at 4 institutions in 2 countries.

Joachim M MatzParasitology Unit, Max Planck Institute for Infection Biology, Berlin, Germany Institute of Biology, Humboldt University, Berlin, Germany Department of Medical Microbiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands.
Alyssa IngmundsonParasitology Unit, Max Planck Institute for Infection Biology, Berlin, Germany.
Jean Costa NunesDepartment of Neuropathology, Charité-Universitätsmedizin, Berlin, Germany.
Werner StenzelDepartment of Neuropathology, Charité-Universitätsmedizin, Berlin, Germany.
Kai MatuschewskiParasitology Unit, Max Planck Institute for Infection Biology, Berlin, Germany Institute of Biology, Humboldt University, Berlin, Germany.
Taco W A KooijParasitology Unit, Max Planck Institute for Infection Biology, Berlin, Germany Department of Medical Microbiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands Centre for Molecular and Biomolecular Informatics, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, The Netherlands Taco.Kooij@radboudumc.nl.ORCID http://orcid.org/0000-0002-8547-7523
Charité - Universitätsmedizin Berlin · DERadboud University Nijmegen · NLHumboldt-Universität zu Berlin · DEMax Planck Institute for Infection Biology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Malaria pathology is linked to remodeling of red blood cells by eukaryotic Plasmodium parasites. Central to host cell refurbishment is the trafficking of parasite-encoded virulence factors through the Plasmodium translocon of exported proteins (PTEX). Much of our understanding of its function is based on experimental work with cultured Plasmodium falciparum, yet direct consequences of PTEX impairment during an infection remain poorly defined. Using the murine malaria model parasite Plasmodium berghei, it is shown here that efficient sequestration to the pulmonary, adipose, and brain tissue vasculature is dependent on the PTEX components thioredoxin 2 (TRX2) and PTEX88. While TRX2-deficient parasites remain virulent, PTEX88-deficient parasites no longer sequester in the brain, correlating with abolishment of cerebral complications in infected mice. However, an apparent trade-off for virulence attenuation was spleen enlargement, which correlates with a strongly reduced schizont-to-ring-stage transition. Strikingly, general protein export is unaffected in PTEX88-deficient mutants that mature normally in vitro. Thus, PTEX88 is pivotal for tissue sequestration in vivo, parasite virulence, and preventing exacerbation of spleen pathology, but these functions do not correlate with general protein export to the host erythrocyte. The presented data suggest that the protein export machinery of Plasmodium parasites and their underlying mechanistic features are considerably more complex than previously anticipated and indicate challenges for targeted intervention strategies.

Indexed as

AnimalsBrainMicePlasmodium bergheiProtein TransportProtozoan ProteinsSpleenThioredoxinsProtozoan ProteinsThioredoxins

Identifiers

PMID25820521
PMCPMC4452575
OpenAlexW2008207993

What OpenQuestion holds

Textmetadata
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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.