Evidence map›Paper›PMID 32295584›Full record

ArticleMalaria journal2020

The malaria parasite Plasmodium falciparum in red blood cells selectively takes up serum proteins that affect host pathogenicity.

Takahiro Tougan, Jyotheeswara R Edula, Masayuki Morita, Eizo Takashima, Hajime Honma, Takafumi Tsuboi, Toshihiro Horii

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 9% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
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  7. Cultivation of Asexual Intraerythrocytic Stages ofPathogens (Basel, Switzerland) · 2023
    Review
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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

7 authors at 4 institutions in 2 countries.

Takahiro TouganResearch Centre for Infectious Disease Control, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka, 565-0871, Japan. ttougan@biken.osaka-u.ac.jp.ORCID http://orcid.org/0000-0002-5248-548X
Jyotheeswara R EdulaDepartment of Molecular Protozoology, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Masayuki MoritaDivision of Malaria Research, Proteo-Science Centre, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan.
Eizo TakashimaDivision of Malaria Research, Proteo-Science Centre, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan.
Hajime HonmaDepartment of International Affairs and Tropical Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan.
Takafumi TsuboiDivision of Malaria Research, Proteo-Science Centre, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, 790-8577, Japan.
Toshihiro HoriiDepartment of Malaria Vaccine Development, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Ehime University · JPThe University of Osaka · JPTokyo Women's Medical University · JPUniversity of California San Diego · US

Funding

Global Health Innovative Technology Fund G2013-105Global Health Innovative Technology Fund G2014-109Ministry of Education, Culture, Sports, Science and Technology 16K08759Ministry of Education, Culture, Sports, Science and Technology 22700455Ministry of Education, Culture, Sports, Science and Technology 25460754
6 · The paper itself

Abstract

backgroundThe malaria parasite Plasmodium falciparum is a protozoan that develops in red blood cells (RBCs) and requires various host factors. For its development in RBCs, nutrients not only from the RBC cytosol but also from the extracellular milieu must be acquired. Although the utilization of host nutrients by P. falciparum has been extensively analysed, only a few studies have reported its utilization of host serum proteins. Hence, the aim of the current study was to comprehensively identify host serum proteins taken up by P. falciparum parasites and to elucidate their role in pathogenesis.

methodsPlasmodium falciparum was cultured with human serum in vitro. Uptake of serum proteins by parasites was comprehensively determined via shotgun liquid chromatography-mass spectrometry/mass spectrometry and western blotting. The calcium ion concentration in serum was also evaluated, and coagulation activity of the parasite lysate was assessed.

resultsThree proteins, vitamin K-dependent protein S, prothrombin, and vitronectin, were selectively internalized under sufficient Ca

conclusionsSerum proteins were taken up by parasites under culture conditions with sufficient Ca

Indexed as

Blood ProteinsBlotting, WesternChromatography, LiquidErythrocytesMalaria, FalciparumPlasmodium falciparumSchizontsTandem Mass SpectrometryTrophozoitesBlood ProteinsBlood coagulationCalcium ionPlasmodium falciparumSerum protein uptakeThrombin

Identifiers

PMID32295584
PMCPMC7161009
OpenAlexW3016546781

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.