Evidence map›Paper›PMID 33492344›Full record

ArticleThe Journal of experimental medicine2021

Plasmodium falciparum erythrocyte membrane protein 1 variants induce cell swelling and disrupt the blood-brain barrier in cerebral malaria.

Yvonne Adams, Rebecca W Olsen, Anja Bengtsson, Nanna Dalgaard, Mykola Zdioruk, Sanghamitra Satpathi, Prativa K Behera, Praveen K Sahu, Sean E Lawler, Klaus Qvortrup and 2 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
15.9field-weighted citation impact, top 1% 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

46 citing papers in PubMed, 96 citations in OpenAlex.

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  11. Evasive mechanisms of human VSG and PfEMP1 antigens with link to Vaccine scenario: a review.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2025
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 4 institutions in 4 countries.

Yvonne AdamsCentre for Medical Parasitology at Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Rebecca W OlsenCentre for Medical Parasitology at Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Anja BengtssonCentre for Medical Parasitology at Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Nanna DalgaardCentre for Medical Parasitology at Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Mykola ZdiorukBrigham and Women's Hospital, Boston, MA.
Sanghamitra SatpathiDepartment of Pathology, Ispat General Hospital, Rourkela, India.
Prativa K BeheraDepartment of Pathology, Ispat General Hospital, Rourkela, India.
Praveen K SahuCenter for the Study of Complex Malaria in India, Ispat General Hospital, Rourkela, India.
Sean E LawlerBrigham and Women's Hospital, Boston, MA.
Klaus QvortrupCore Facility for Integrated Microscopy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Samuel C WassmerDepartment of Infection Biology, London School of Hygiene and Tropical Medicine, London, UK.
Anja T R JensenCentre for Medical Parasitology at Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
University of Copenhagen · DKIspat General Hospital · INBrigham and Women's Hospital · USLondon School of Hygiene & Tropical Medicine · GB

Funding

Using Next-Generation Genomics to Study Antimalarial Drug Resistance in IndiaU19AI089676 · NIAID · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI CARLTON, JANE M · 2010 to 2023
$22.6M
Fluorinated macrocyclic peptides as BBB penetrating agent for improved GBM treatmentR01CA237063 · NCI · BROWN UNIVERSITY · PI LAWLER, SEAN EDWARD, PENTELUTE, BRADLEY LETHER · 2019 to 2023
$3.0M
Investigating the role of cerebral vasoconstriction in cerebral malariaR21AI142472 · NIAID · LONDON SCH/HYGIENE & TROPICAL MEDICINE · PI HOFFMANN, ANGELIKA, WASSMER, SAM · 2019 to 2020
$290k
Medical Research Council MR/S009450/1NCI NIH HHS R01 CA237063NIAID NIH HHS R21 AI142472NIAID NIH HHS U19 AI089676
6 · The paper itself

Abstract

Cerebral malaria (CM) is caused by the binding of Plasmodium falciparum-infected erythrocytes (IEs) to the brain microvasculature, leading to inflammation, vessel occlusion, and cerebral swelling. We have previously linked dual intercellular adhesion molecule-1 (ICAM-1)- and endothelial protein C receptor (EPCR)-binding P. falciparum parasites to these symptoms, but the mechanism driving the pathogenesis has not been identified. Here, we used a 3D spheroid model of the blood-brain barrier (BBB) to determine unexpected new features of IEs expressing the dual-receptor binding PfEMP1 parasite proteins. Analysis of multiple parasite lines shows that IEs are taken up by brain endothelial cells in an ICAM-1-dependent manner, resulting in breakdown of the BBB and swelling of the endothelial cells. Via ex vivo analysis of postmortem tissue samples from CM patients, we confirmed the presence of parasites within brain endothelial cells. Importantly, this discovery points to parasite ingress into the brain endothelium as a contributing factor to the pathology of human CM.

Indexed as

AdultAnimalsBlood-Brain BarrierEndocytosisEndothelial CellsEndothelial Protein C ReceptorErythrocytesHumansIntercellular Adhesion Molecule-1Malaria, CerebralMicrovilliModels, BiologicalMolecular Docking SimulationParasitesPlasmodium falciparumProtein BindingEndothelial Protein C Receptorerythrocyte membrane protein 1, Plasmodium falciparumIntercellular Adhesion Molecule-1Protein IsoformsProtozoan Proteins

Identifiers

PMID33492344
PMCPMC7833209
OpenAlexW3123802905

What OpenQuestion holds

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LicenceCC BY
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.