Evidence map›Paper›PMID 22194696›Full record

ArticlePLoS genetics2011

HIF-1 regulates iron homeostasis in Caenorhabditis elegans by activation and inhibition of genes involved in iron uptake and storage.

Steven Joshua Romney, Ben S Newman, Colin Thacker, Elizabeth A Leibold

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
1.3field-weighted citation impact, top 26% 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

37 citing papers in PubMed, 78 citations in OpenAlex.

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  14. Pulse magnetization elicits differential gene expression in the central nervous system of the Caribbean spiny lobster, Panulirus argus.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2020
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  15. How affinity of the ELT-2 GATA factor binding toDevelopment (Cambridge, England) · 2020
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  19. Reconstructing a metazoan genetic pathway with transcriptome-wide epistasis measurements.Proceedings of the National Academy of Sciences of the United States of America · 2018
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  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

4 authors at 2 institutions in 1 country.

Steven Joshua RomneyDepartment of Medicine, University of Utah, Salt Lake City, Utah, United States of America.
Ben S Newman
Colin Thacker
Elizabeth A Leibold
University of Utah · USUniversity of Washington · US

Funding

Genetic Analysis of Iron Homeostasis in C.ElegansR01DK068602 · NIDDK · UNIVERSITY OF UTAH · PI LEIBOLD, ELIZABETH ANN · 2006 to 2010
$1.2M
NIDDK NIH HHS R01 DK068602NIDDK NIH HHS R01DK068602
6 · The paper itself

Abstract

Caenorhabditis elegans ftn-1 and ftn-2, which encode the iron-storage protein ferritin, are transcriptionally inhibited during iron deficiency in intestine. Intestinal specific transcription is dependent on binding of ELT-2 to GATA binding sites in an iron-dependent enhancer (IDE) located in ftn-1 and ftn-2 promoters, but the mechanism for iron regulation is unknown. Here, we identify HIF-1 (hypoxia-inducible factor -1) as a negative regulator of ferritin transcription. HIF-1 binds to hypoxia-response elements (HREs) in the IDE in vitro and in vivo. Depletion of hif-1 by RNA interference blocks transcriptional inhibition of ftn-1 and ftn-2 reporters, and ftn-1 and ftn-2 mRNAs are not regulated in a hif-1 null strain during iron deficiency. An IDE is also present in smf-3 encoding a protein homologous to mammalian divalent metal transporter-1. Unlike the ftn-1 IDE, the smf-3 IDE is required for HIF-1-dependent transcriptional activation of smf-3 during iron deficiency. We show that hif-1 null worms grown under iron limiting conditions are developmentally delayed and that depletion of FTN-1 and FTN-2 rescues this phenotype. These data show that HIF-1 regulates intestinal iron homeostasis during iron deficiency by activating and inhibiting genes involved in iron uptake and storage.

Indexed as

Gene Expression Regulation, DevelopmentalAnimalsBinding SitesCaenorhabditis elegansCaenorhabditis elegans ProteinsCation Transport ProteinsFerritinsGATA Transcription FactorsHomeostasisIntestinal MucosaIronIron DeficienciesProtein BindingRNA InterferenceTranscriptional ActivationTranscription FactorsCaenorhabditis elegans ProteinsCation Transport ProteinsELT-2 protein, C elegansFerritinsGATA Transcription FactorsHIF-1 protein, C elegansIronsmf-3 protein, C elegansTranscription Factors

Identifiers

PMID22194696
PMCPMC3240588
OpenAlexW1977913702

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.