Evidence map›Paper›PMID 23720749›Full record

ArticleThe Journal of biological chemistry2013

An epigenetic antimalarial resistance mechanism involving parasite genes linked to nutrient uptake.

Paresh Sharma, Kurt Wollenberg, Morgan Sellers, Kayvan Zainabadi, Kevin Galinsky, Eli Moss, Wang Nguitragool, Daniel Neafsey, Sanjay A Desai

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
9.8field-weighted citation impact, top 2% 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

55 citing papers in PubMed, 85 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Targeting histone acetylation to overcome drug resistance in the parasitebioRxiv : the preprint server for biology · 2025
    Article
  6. Article
  7. Microorganisms · 2024
    Article
  8. Review
  9. Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Frontiers in pharmacology · 2022
    Article
  15. Article
  16. Review
  17. Article
  18. How Malaria Parasites Acquire Nutrients From Their Host.Frontiers in cell and developmental biology · 2021
    Review
  19. Article
  20. Article
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

9 authors at 3 institutions in 1 country.

Paresh SharmaLaboratory of Malaria and Vector Research, Office of Cyber Infrastructure and Computational Biology, NIAID, National Institutes of Health, Bethesda, Maryland 20852, USA.
Kurt Wollenberg
Morgan Sellers
Kayvan Zainabadi
Kevin Galinsky
Eli Moss
Wang Nguitragool
Daniel Neafsey
Sanjay A Desai
Vector Oncology (United States) · USBroad Institute · USNational Institutes of Health · US

Funding

The Plasmodial Surface Anion Channel And Malaria Parasite Nutrient AcquisitionZIAAI000882 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI DESAI, SANJAY A · 2009 to 2025
$20.5M
Training Grant in Quantitative Sciences for Cancer ResearchT32CA009337 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI QUACKENBUSH, JOHN, TRIPPA, LORENZO · 1986 to 2025
$12.3M
Intramural NIH HHS
6 · The paper itself

Abstract

Acquired antimalarial drug resistance produces treatment failures and has led to periods of global disease resurgence. In Plasmodium falciparum, resistance is known to arise through genome-level changes such as mutations and gene duplications. We now report an epigenetic resistance mechanism involving genes responsible for the plasmodial surface anion channel, a nutrient channel that also transports ions and antimalarial compounds at the host erythrocyte membrane. Two blasticidin S-resistant lines exhibited markedly reduced expression of clag genes linked to channel activity, but had no genome-level changes. Silencing aborted production of the channel protein and was directly responsible for reduced uptake. Silencing affected clag paralogs on two chromosomes and was mediated by specific histone modifications, allowing a rapidly reversible drug resistance phenotype advantageous to the parasite. These findings implicate a novel epigenetic resistance mechanism that involves reduced host cell uptake and is a worrisome liability for water-soluble antimalarial drugs.

Indexed as

Drug ResistanceEpigenesis, GeneticGenes, ProtozoanAntimalarialsAntiportersCell Adhesion MoleculesEnzyme InhibitorsHumansIon TransportMalaria, FalciparumNucleosidesPlasmodium falciparumProtozoan ProteinsAntimalarialsAntiportersblasticidin SCell Adhesion MoleculesEnzyme InhibitorsNucleosidesProtozoan ProteinsAntimalarial Drug ResistanceDNA TransformationDrug ResistanceEpigeneticsGene SilencingHost-pathogen InteractionsMalariaParasitology

Identifiers

PMID23720749
PMCPMC3707646
OpenAlexW2082680042

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.