Evidence map›Paper›PMID 22354307›Full record

ArticleAntimicrobial agents and chemotherapy2012

Lack of association of the S769N mutation in Plasmodium falciparum SERCA (PfATP6) with resistance to artemisinins.

Long Cui, Zenglei Wang, Hongying Jiang, Daniel Parker, Haiyan Wang, Xin-Zhuan Su, Liwang Cui

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
6.9field-weighted citation impact, top 3% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

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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 1 country.

Long CuiDepartment of Entomology, The Pennsylvania State University, University Park, Pennsylvania, USA.
Zenglei Wang
Hongying Jiang
Daniel Parker
Haiyan Wang
Xin-Zhuan Su
Liwang Cui
Pennsylvania State University · USKansas State University · USNational Institute of Allergy and Infectious Diseases · USNational Institutes of Health · US

Funding

Southeast Asia Malaria Research CenterU19AI089672 · NIAID · UNIVERSITY OF SOUTH FLORIDA · PI CUI, LIWANG · 2010 to 2023
$28.9M
Malaria Parasite Sexual Development, Drug Resistance, and EvolutionZIAAI000892 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI SU, XINZHUAN · 2009 to 2025
$23.3M
Mechanism of artemisinin resistance in selected malaria parasite linesR21AI085518 · NIAID · PENNSYLVANIA STATE UNIVERSITY, THE · PI CUI, LIWANG · 2010 to 2011
$405k
Intramural NIH HHSNIAID NIH HHS 1R21AI085518NIAID NIH HHS R21 AI085518NIAID NIH HHS U19 AI089672NIAID NIH HHS U19AI089672
6 · The paper itself

Abstract

The recent emergence of artemisinin (ART) resistance in Plasmodium falciparum in western Cambodia, manifested as delayed parasite clearance, is a big threat to the long-term efficacy of this family of antimalarial drugs. Among the multiple candidate genes associated with ART resistance in P. falciparum, the sarcoplasmic/endoplasmic reticulum Ca(2+)-ATPase PfATP6 has been postulated as a specific target of ARTs. The PfATP6 gene harbors multiple single-nucleotide polymorphisms in field parasite populations, and S769N has been associated with decreased sensitivity to artemether in parasite populations from French Guiana. In this study, we used an allelic exchange strategy to engineer parasite lines carrying the S769N mutations in P. falciparum strain 3D7 and evaluated whether introduction of this mutation modulated parasite sensitivity to ART derivatives. Using three transgenic lines carrying the 769N mutation and two transgenic lines carrying the wild-type 769S as controls, we found that S769N did not affect PfATP6 gene expression. We compared the sensitivities of these parasite lines to three ART derivatives, artemether, artesunate, and dihydroartemisinin, in 18 biological experiments and detected no significant effect of the S769N mutation on parasite response to these ART derivatives. This study provides further evidence for the lack of association of PfATP6 with ART resistance.

Indexed as

AntimalarialsArtemisininsCalcium-Transporting ATPasesCells, CulturedCrossing Over, GeneticErythrocytesGene ExpressionHumansInhibitory Concentration 50MutationPlasmidsPlasmodium falciparumPolymorphism, Single NucleotideProtein EngineeringAntimalarialsArtemisininsATP6 protein, Plasmodium falciparumCalcium-Transporting ATPases

Identifiers

PMID22354307
PMCPMC3346631
OpenAlexW2076989174

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.