Evidence map›Paper›PMID 30277246›Full record

ArticleMetallomics : integrated biometal science2018

Altered zinc balance in the Atp7b

Kelsey A Meacham, María Paz Cortés, Eve M Wiggins, Alejandro Maass, Mauricio Latorre, Martina Ralle, Jason L Burkhead

Abstract read
In one paragraph

Article in Metallomics : integrated biometal science, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

10 citing papers in PubMed, 17 citations in OpenAlex.

  1. Metallothionein and neurodegenerative diseases.Neural regeneration research · 2026
    Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. α-lipoic acid ameliorates consequences of copper overload by up-regulating selenoproteins and decreasing redox misbalance.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  7. Review
  8. Review
  9. Article
  10. 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 3 institutions in 6 countries.

Kelsey A MeachamDepartment of Biological Sciences, University of Alaska Anchorage, 3211 Providence Dr., Anchorage, AK 99508, USA. kmeacham@mcw.edu emwiggins2@alaska.edu jlburkhead@uaa.alaska.edu.
María Paz Cortés
Eve M Wiggins
Alejandro Maass
Mauricio Latorre
Martina Ralle
Jason L Burkhead
Institute of Mathematics and Mathematical Modeling · KZUniversity of Alaska Anchorage · USOregon Health & Science University · US

Funding

The Administrative CoreP20GM103395 · NIGMS · UNIVERSITY OF ALASKA FAIRBANKS · PI BRIAN M BARNES · 2012 to 2026
$66.1M
NM-INBRE Sequencing and Bioinformatics CoreP20GM103451 · NIGMS · NEW MEXICO STATE UNIVERSITY LAS CRUCES · PI Charlotte C. Gard · 2012 to 2026
$61.2M
Understanding the origins of rapid recurrence of pancreatic cancer after resectionP30CA069533 · NCI · OREGON HEALTH & SCIENCE UNIVERSITY · PI Luiz Eduardo Bertassoni · 1997 to 2026
$60.5M
Proteomics CoreP30EY010572 · NEI · OREGON HEALTH & SCIENCE UNIVERSITY · PI TED S ACOTT · 1995 to 2026
$19.4M
Hair-Bundle ProteinsR01DC002368 · NIDCD · OREGON HEALTH & SCIENCE UNIVERSITY · PI Peter Gordon Barr-Gillespie · 1994 to 2026
$11.3M
The Role of Hepatic Copper Accumulation in Wilson DiseaseR01GM090016 · NIGMS · OREGON HEALTH & SCIENCE UNIVERSITY · PI RALLE, MARTINA · 2010 to 2014
$1.4M
Rethinking the zinc-copper relationship in Wilson DiseaseR15DK114747 · NIDDK · UNIVERSITY OF ALASKA ANCHORAGE · PI BURKHEAD, JASON L · 2017 to 2022
$879k
ICP-MS to Measure Elemental ConcentrationsS10RR025512 · NCRR · OREGON HEALTH & SCIENCE UNIVERSITY · PI RALLE, MARTINA · 2009 to 2009
$168k
NCI NIH HHS P30 CA069533NCRR NIH HHS S10 RR025512NEI NIH HHS P30 EY010572NIDCD NIH HHS R01 DC002368NIDDK NIH HHS R15 DK114747NIGMS NIH HHS P20 GM103395NIGMS NIH HHS P20 GM103451NIGMS NIH HHS R01 GM090016
6 · The paper itself

Abstract

Wilson disease (WD) is an autosomal recessive disorder caused by mutation in the ATP7B gene that affects copper transport in the body. ATP7B mutation damages copper transporter function, ultimately resulting in excessive copper accumulation and subsequent toxicity in both the liver and brain. Mechanisms of copper toxicity, however, are not well defined. The Atp7b-/- mouse model is well-characterized and presents a hepatic phenotype consistent with WD. In this study, we found that the untreated Atp7b-/- mice accumulate approximately 2-fold excess hepatic zinc compared to the wild type. We used targeted transcriptomics and proteomics to analyze the molecular events associated with zinc and copper accumulation in the Atp7b-/- mouse liver. Altered gene expression of Zip5 and ZnT1 zinc transporters indicated a transcriptional homeostatic response, while increased copper/zinc ratios associated with high levels of metallothioneins 1 and 2, indicated altered Zn availability in cells. These data suggest that copper toxicity in Wilson disease includes effects on zinc-dependent proteins. Transcriptional network analysis of RNA-seq data reveals an interconnected network of transcriptional activators with over-representation of zinc-dependent and zinc-responsive transcription factors. In the context of previous research, these observations support the hypothesis that mechanisms of copper toxicity include disruption of intracellular zinc distribution in liver cells. The translational significance of this work lies in oral zinc supplementation in treatment for WD, which is thought to mediate protective effects through the induction of metallothionein synthesis in the intestine. This work indicates broader impacts of altered zinc-copper balance in WD, including global transcriptional responses and altered zinc balance in the liver.

Indexed as

Disease Models, AnimalHepatolenticular DegenerationAnimalsCopperCopper-Transporting ATPasesGene Regulatory NetworksLiverMetallothioneinMiceMice, KnockoutZincAtp7b protein, mouseCopperCopper-Transporting ATPasesMetallothioneinZinc

Identifiers

PMID30277246
PMCPMC6310031
OpenAlexW2890379973

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.