Evidence map›Paper›PMID 22552775›Full record

ArticleToxicological sciences : an official journal of the Society of Toxicology2012

Role of MTL-1, MTL-2, and CDR-1 in mediating cadmium sensitivity in Caenorhabditis elegans.

Julie Hall, Kathryn L Haas, Jonathan H Freedman

Open access · bronzeAbstract read
In one paragraph

Article in Toxicological sciences : an official journal of the Society of Toxicology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
0.7field-weighted citation impact, top 37% 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

29 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Article
  3. Frontiers in aging neuroscience · 2026
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  8. Chemical Genetics inACS chemical biology · 2024
    Article
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  11. Article
  12. Article
  13. The In Vivo Toxicity Assessments of Water-Dispersed Fluorescent Silicon Nanoparticles inInternational journal of environmental research and public health · 2022
    Article
  14. Cadmium hijacks the high zinc response by binding and activating the HIZR-1 nuclear receptor.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  15. Zinc homeostasis and signaling in the roundworm C. elegans.Biochimica et biophysica acta. Molecular cell research · 2021
    Review
  16. The cadmium-responsive gene,microPublication biology · 2020
    Article
  17. Article
  18. Article
  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

3 authors at 2 institutions in 1 country.

Julie HallBiomolecular Screening Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, North Carolina 27709, USA.
Kathryn L Haas
Jonathan H Freedman
Screen · USNational Institute of Environmental Health Sciences · US

Funding

NTP MediumThroughput C. elegans Screening FacilityZIAES102046 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI FREEDMAN, JONATHAN H · 2009 to 2013
$13.6M
Comparative Genomic Responses to Environmental StressorsZIAES102045 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI FREEDMAN, JONATHAN H · 2009 to 2014
$6.9M
Comparative Genomic Responses to Environmental StressorsZ01ES102045 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI FREEDMAN, JONATHAN H · 2006 to 2008
$3.1M
NTP High Throughput C. elegans Screening CoreZ01ES102046 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI FREEDMAN, JONATHAN H · 2006 to 2008
$3.1M
Intramural NIH HHS Z01 ES102045Intramural NIH HHS Z01 ES102046
6 · The paper itself

Abstract

Cadmium is an environmental toxicant whose exposure is associated with multiple human pathologies. To prevent cadmium-induced toxicity, organisms produce a variety of detoxification molecules. In response to cadmium, the nematode Caenorhabditis elegans increases the steady-state levels of several hundred genes, including two metallothioneins, mtl-1 and mtl-2, and the cadmium-specific response gene, cdr-1. Despite the presumed importance in metal detoxification of mtl-1 and mtl-2, knockdown of their expression does not increase cadmium hypersensitivity, which suggests that these genes are not required for resistance to metal toxicity in C. elegans. To determine whether cdr-1 is critical in metal detoxification and compensates for the loss of mtl-1 and/or mtl-2, C. elegans strains were generated in which one, two, and all three genes were deleted, and the effects of cadmium on brood size, embryonic lethality, the Bag phenotype, and growth were determined. Growth at low cadmium concentrations was the only endpoint in which the triple mutant displayed more sensitivity than the single and double mutants. A lack of hypersensitivity in these strains suggests that other factors may be involved in the response to cadmium. Caenorhabditis elegans produces phytochelatins (PCs) that are critical in the defense against cadmium toxicity. PC levels in wild type, cdr-1 single, mtl-1, mtl-2 double, and triple mutants were measured. PC levels were constitutively higher in the mtl-1, mtl-2 double, and triple mutants compared with wild type. Following cadmium exposure, PC levels increased. The lack of cadmium hypersensitivity when these genes are deleted may be attributed to the compensatory effects of increases in PCs.

Indexed as

AnimalsCadmiumCaenorhabditis elegansCaenorhabditis elegans ProteinsChromatography, LiquidGene Knockdown TechniquesGenes, LethalHot TemperatureMass SpectrometryMutationCadmiumCaenorhabditis elegans Proteins

Identifiers

PMID22552775
PMCPMC3493192
OpenAlexW2118377648

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.