Evidence map›Paper›PMID 20454673›Full record

ArticlePloS one2010

The tegument of the human parasitic worm Schistosoma mansoni as an excretory organ: the surface aquaporin SmAQP is a lactate transporter.

Zahra Faghiri, Simone M R Camargo, Katja Huggel, Ian C Forster, David Ndegwa, François Verrey, Patrick J Skelly

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

44 citing papers in PubMed, 97 citations in OpenAlex.

  1. Article
  2. Expression, Characterization and Selective Chemical Inhibition of EssentialInternational journal of molecular sciences · 2025
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  11. Review
  12. Article
  13. Article
  14. A Review of Nanotechnology for Targeted Anti-schistosomal Therapy.Frontiers in bioengineering and biotechnology · 2020
    Review
  15. Vitamin B6 Acquisition and Metabolism inFrontiers in immunology · 2020
    Article
  16. Article
  17. Article
  18. Article
  19. Infection by the Helminth ParasiteMolecular & cellular proteomics : MCP · 2018
    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

7 authors at 2 institutions in 2 countries.

Zahra FaghiriMolecular Helminthology Laboratory, Division of Infectious Diseases, Department of Biomedical Sciences, Cummings School of Veterinary Medicine, Tufts University, Grafton, Massachusetts, United States of America.
Simone M R Camargo
Katja Huggel
Ian C Forster
David Ndegwa
François Verrey
Patrick J Skelly
University of Zurich · CHTufts University · US

Funding

Gene silencing in schistosomes using RNAiR01AI056273 · NIAID · TUFTS UNIVERSITY BOSTON · PI Patrick J Skelly · 2004 to 2026
$7.2M
Functional Characterization of the Schistosome TegumentR56AI056273 · NIAID · TUFTS UNIVERSITY BOSTON · PI SKELLY, PATRICK J · 2021 to 2021
$413k
NIAID NIH HHS AI-056273NIAID NIH HHS R01 AI056273NIAID NIH HHS R56 AI056273
6 · The paper itself

Abstract

Adult schistosomes are intravascular parasites that metabolize imported glucose largely via glycolysis. How the parasites get rid of the large amounts of lactic acid this generates is unknown at the molecular level. Here, we report that worms whose aquaporin gene (SmAQP) has been suppressed using RNAi fail to rapidly acidify their culture medium and excrete less lactate compared to controls. Functional expression of SmAQP in Xenopus oocytes demonstrates that this protein can transport lactate following Michaelis-Menten kinetics with low apparent affinity (Km = 41+/-5. 8 mM) and with a low energy of activation (E(a) = 7.18+/-0.7 kcal/mol). Phloretin, a known inhibitor of lactate release from schistosomes, also inhibits lactate movement in SmAQP-expressing oocytes. In keeping with the substrate promiscuity of other aquaporins, SmAQP is shown here to be also capable of transporting water, mannitol, fructose and alanine but not glucose. Using immunofluorescent and immuno-EM, we confirm that SmAQP is localized in the tegument of adult worms. These findings extend the proposed functions of the schistosome tegument beyond its known capacity as an organ of nutrient uptake to include a role in metabolic waste excretion.

Indexed as

AnimalsAquaporinsCell MembraneCell Membrane PermeabilityCulture MediaHelminthsImmunohistochemistryMonocarboxylic Acid TransportersOocytesOsmosisSchistosoma mansoniXenopusAquaporinsCulture MediaMonocarboxylic Acid Transporters

Identifiers

PMID20454673
PMCPMC2862721
OpenAlexW2042306674

What OpenQuestion holds

Textmetadata
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.