Evidence map›Paper›PMID 25769119›Full record

ArticleMetallomics : integrated biometal science2015

Loss of pdr-1/parkin influences Mn homeostasis through altered ferroportin expression in C. elegans.

Sudipta Chakraborty, Pan Chen, Julia Bornhorst, Tanja Schwerdtle, Fabian Schumacher, Burkhard Kleuser, Aaron B Bowman, Michael Aschner

Abstract read
In one paragraph

Article in Metallomics : integrated biometal science, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
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

21 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Biomolecules · 2022
    Review
  8. Manganese-Induced Toxicity inInternational journal of molecular sciences · 2022
    Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Zn homeostasis in genetic models of Parkinson's disease in Caenorhabditis elegans.Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2019
    Article
  16. Article
  17. Modeling Parkinson's Disease in C. elegans.Journal of Parkinson's disease · 2018
    Review
  18. Article
  19. Article
  20. Review
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

8 authors.

Sudipta ChakrabortyNeuroscience Graduate Program, Vanderbilt University Medical Center, Nashville, TN, USA.
Pan Chen
Julia Bornhorst
Tanja Schwerdtle
Fabian Schumacher
Burkhard Kleuser
Aaron B Bowman
Michael Aschner

Funding

Mechanisms of Manganese NeurotoxicityR01ES010563 · NIEHS · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI Michael Aschner, Aaron B Bowman · 2001 to 2026
$11.9M
Mechanisms of Methylmercury Induced Neuron ToxicityR01ES007331 · NIEHS · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI Michael Aschner, Aaron B Bowman · 1996 to 2026
$10.6M
NIEHS NIH HHS R01 ES007331NIEHS NIH HHS R01 ES010563NIEHS NIH HHS R01 ES10563
6 · The paper itself

Abstract

Overexposure to the essential metal manganese (Mn) can result in an irreversible condition known as manganism that shares similar pathophysiology with Parkinson's disease (PD), including dopaminergic (DAergic) cell loss that leads to motor and cognitive impairments. However, the mechanisms behind this neurotoxicity and its relationship with PD remain unclear. Many genes confer risk for autosomal recessive, early-onset PD, including the parkin/PARK2 gene that encodes for the E3 ubiquitin ligase Parkin. Using Caenorhabditis elegans (C. elegans) as an invertebrate model that conserves the DAergic system, we previously reported significantly increased Mn accumulation in pdr-1/parkin mutants compared to wildtype (WT) animals. For the current study, we hypothesize that this enhanced accumulation is due to alterations in Mn transport in the pdr-1 mutants. While no change in mRNA expression of the major Mn importer proteins (smf-1-3) was found in pdr-1 mutants, significant downregulation in mRNA levels of the putative Mn exporter ferroportin (fpn-1.1) was observed. Using a strain overexpressing fpn-1.1 in worms lacking pdr-1, we show evidence for attenuation of several endpoints of Mn-induced toxicity, including survival, metal accumulation, mitochondrial copy number and DAergic integrity, compared to pdr-1 mutants alone. These changes suggest a novel role of pdr-1 in modulating Mn export through altered transporter expression, and provides further support of metal dyshomeostasis as a component of Parkinsonism pathophysiology.

Indexed as

AnimalsCaenorhabditis elegansCaenorhabditis elegans ProteinsCation Transport ProteinsDown-RegulationFerroportinGene DeletionHomeostasisManganeseRNA, MessengerUbiquitin-Protein LigasesCaenorhabditis elegans ProteinsCation Transport ProteinsFerroportinManganeseparkin proteinRNA, MessengerUbiquitin-Protein Ligases

Identifiers

PMID25769119
PMCPMC4431931

What OpenQuestion holds

Textmetadata
LicenceTDM
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.