Evidence map›Paper›PMID 28931241›Full record

ArticleThe Journal of infectious diseases2017

Association of a Novel Mutation in the Plasmodium falciparum Chloroquine Resistance Transporter With Decreased Piperaquine Sensitivity.

Sonia Agrawal, Kara A Moser, Lindsay Morton, Michael P Cummings, Ankita Parihar, Ankit Dwivedi, Amol C Shetty, Elliott F Drabek, Christopher G Jacob, Philipp P Henrich and 15 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of infectious diseases, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed, 4 pooled it
17.9field-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

90 citing papers in PubMed, 4 syntheses or guidelines pooled it, 145 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Trial
  6. Trial
  7. Review
  8. Review
  9. A Multidimensional Analysis of the Bimodal Piperaquine Response inbioRxiv : the preprint server for biology · 2026
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Deletion of theAntimicrobial agents and chemotherapy · 2025
    Article
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  17. Article
  18. Review
  19. Article
  20. Article

30 more citing papers are in PubMed but not listed here.

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

25 authors at 8 institutions in 5 countries.

Sonia AgrawalDivision of Malaria Research, Institute for Global Health.
Kara A MoserInstitute for Genome Sciences, University of Maryland School of Medicine, Baltimore.
Lindsay MortonDivision of Malaria Research, Institute for Global Health.
Michael P CummingsCenter for Bioinformatics and Computational Biology, University of Maryland, College Park.
Ankita PariharInstitute for Genome Sciences, University of Maryland School of Medicine, Baltimore.
Ankit DwivediInstitute for Genome Sciences, University of Maryland School of Medicine, Baltimore.
Amol C ShettyInstitute for Genome Sciences, University of Maryland School of Medicine, Baltimore.
Elliott F DrabekInstitute for Genome Sciences, University of Maryland School of Medicine, Baltimore.
Christopher G JacobDivision of Malaria Research, Institute for Global Health.
Philipp P HenrichDepartment of Microbiology and Immunology.
Christian M ParobekDivision of Infectious Diseases, University of North Carolina at Chapel Hill.
Krisada JongsakulArmed Forces Research Institute of Medical Sciences, Department of Immunology and Medicine.
Rekol HuyNational Center for Parasitology Entomology and Malaria Control, Phnom Penh, Cambodia.
Michele D SpringArmed Forces Research Institute of Medical Sciences, Department of Immunology and Medicine.
Charlotte A LanteriArmed Forces Research Institute of Medical Sciences, Department of Immunology and Medicine.
Suwanna ChaorattanakaweeArmed Forces Research Institute of Medical Sciences, Department of Immunology and Medicine.
Chanthap LonArmed Forces Research Institute of Medical Sciences.
Mark M FukudaArmed Forces Research Institute of Medical Sciences, Department of Immunology and Medicine.
David L SaundersArmed Forces Research Institute of Medical Sciences, Department of Immunology and Medicine.
David A FidockDepartment of Microbiology and Immunology.
Jessica T LinDivision of Infectious Diseases, University of North Carolina at Chapel Hill.
Jonathan J JulianoDivision of Infectious Diseases, University of North Carolina at Chapel Hill.
Christopher V PloweDivision of Malaria Research, Institute for Global Health.
Joana C SilvaInstitute for Genome Sciences, University of Maryland School of Medicine, Baltimore.
Shannon Takala-HarrisonDivision of Malaria Research, Institute for Global Health.
University of Maryland, Baltimore · USCentre for Global Health Research · CAInstitute of Medical Sciences · INUniversity of North Carolina at Chapel Hill · USArmed Forces Research Institute of Medical Science · THCambodia National Malaria Center · KHColumbia University Irving Medical Center · USUniversity of Maryland, College Park · US

Funding

Technology CoreU19AI110820 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI DUNNING HOTOPP, JULIE · 2014 to 2023
$36.5M
Defining the Role of PfCRT and PfMDR1 as Pleiotropic Mediators of Plasmodium falciparum Multidrug ResistanceR37AI050234 · NIAID · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI David A Fidock · 2018 to 2026
$4.4M
Defining P. falciparum resistance to artemisinin-based combination therapiesR01AI109023 · NIAID · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI FIDOCK, DAVID A · 2014 to 2025
$4.4M
Elucidating the molecular basis of piperaquine resistance in Plasmodium falciparumR01AI124678 · NIAID · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI David A Fidock · 2016 to 2026
$4.3M
Genome-wide studies to identify markers of artemisinin-resistant malariaR01AI101713 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI HARRISON, SHANNON TAKALA · 2013 to 2016
$1.8M
Identification and validation of molecular markers of piperaquine resistanceR01AI125579 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI HARRISON, SHANNON TAKALA · 2017 to 2021
$1.6M
NIAID NIH HHS R01 AI101713NIAID NIH HHS R01 AI109023NIAID NIH HHS R01 AI124678NIAID NIH HHS R01 AI125579NIAID NIH HHS R37 AI050234NIAID NIH HHS U19 AI110820
6 · The paper itself

Abstract

Background: Amplified copy number in the plasmepsin II/III genes within Plasmodium falciparum has been associated with decreased sensitivity to piperaquine. To examine this association and test whether additional loci might also contribute, we performed a genome-wide association study of ex vivo P. falciparum susceptibility to piperaquine. Methods: Plasmodium falciparum DNA from 183 samples collected primarily from Cambodia was genotyped at 33716 genome-wide single nucleotide polymorphisms (SNPs). Linear mixed models and random forests were used to estimate associations between parasite genotypes and piperaquine susceptibility. Candidate polymorphisms were evaluated for their association with dihydroartemisinin-piperaquine treatment outcomes in an independent dataset. Results: Single nucleotide polymorphisms on multiple chromosomes were associated with piperaquine 90% inhibitory concentrations (IC90) in a genome-wide analysis. Fine-mapping of genomic regions implicated in genome-wide analyses identified multiple SNPs in linkage disequilibrium with each other that were significantly associated with piperaquine IC90, including a novel mutation within the gene encoding the P. falciparum chloroquine resistance transporter, PfCRT. This mutation (F145I) was associated with dihydroartemisinin-piperaquine treatment failure after adjusting for the presence of amplified plasmepsin II/III, which was also associated with decreased piperaquine sensitivity. Conclusions: Our data suggest that, in addition to plasmepsin II/III copy number, other loci, including pfcrt, may also be involved in piperaquine resistance.

Indexed as

ArtemisininsAspartic Acid EndopeptidasesCambodiaDNA Copy Number VariationsDNA, ProtozoanDrug ResistanceGenetic LociGenome-Wide Association StudyGenotyping TechniquesHumansInhibitory Concentration 50Linkage DisequilibriumMembrane Transport ProteinsMutationPiperazinesPlasmodium falciparumArtemisininsartenimolAspartic Acid EndopeptidasesDNA, ProtozoanMembrane Transport ProteinsPfCRT protein, Plasmodium falciparumpiperaquinePiperazinesplasmepsin IIProtozoan ProteinsQuinolineschloroquine resistance transporterfalciparummalariapiperaquineplasmepsinPlasmodiumresistance

Identifiers

PMID28931241
PMCPMC5853219
OpenAlexW2735068327

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.