Evidence map›Paper›PMID 21364282›Full record

ArticleThe Journal of clinical investigation2011

The liver-specific microRNA miR-122 controls systemic iron homeostasis in mice.

Mirco Castoldi, Maja Vujic Spasic, Sandro Altamura, Joacim Elmén, Morten Lindow, Judit Kiss, Jens Stolte, Richard Sparla, Lorenza A D'Alessandro, Ursula Klingmüller and 7 more

Open access · greenAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 135 papers.

0numbers the graph read from it
0cells of the map it votes in
135citing papers in PubMed
9.8field-weighted citation impact, top 1% 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

135 citing papers in PubMed, 248 citations in OpenAlex.

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  19. Liver Damage and microRNAs: An Update.Current issues in molecular biology · 2022
    Review
  20. Article

75 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 5 institutions in 4 countries.

Mirco CastoldiDepartment of Pediatric Hematology, Oncology, and Immunology, University of Heidelberg, Heidelberg, Germany.
Maja Vujic Spasic
Sandro Altamura
Joacim Elmén
Morten Lindow
Judit Kiss
Jens Stolte
Richard Sparla
Lorenza A D'Alessandro
Ursula Klingmüller
Robert E Fleming
Thomas Longerich
Hermann J Gröne
Vladimir Benes
Sakari Kauppinen
Matthias W Hentze
Martina U Muckenthaler
Heidelberg University · USHeidelberg University · DEGerman Cancer Research Center · DEAalborg University · DKUCLouvain Saint-Louis Brussels · BE

Funding

Role of Transferrin Receptor 2 in Iron HomeostasisR01DK063016 · NIDDK · SAINT LOUIS UNIVERSITY · PI FLEMING, ROBERT E · 2004 to 2007
$1.3M
NIDDK NIH HHS R01 DK063016
6 · The paper itself

Abstract

Systemic iron homeostasis is mainly controlled by the liver through synthesis of the peptide hormone hepcidin (encoded by Hamp), the key regulator of duodenal iron absorption and macrophage iron release. Here we show that the liver-specific microRNA miR-122 is important for regulating Hamp mRNA expression and tissue iron levels. Efficient and specific depletion of miR-122 by injection of a locked-nucleic-acid-modified (LNA-modified) anti-miR into WT mice caused systemic iron deficiency, characterized by reduced plasma and liver iron levels, mildly impaired hematopoiesis, and increased extramedullary erythropoiesis in the spleen. Moreover, miR-122 inhibition increased the amount of mRNA transcribed by genes that control systemic iron levels, such as hemochromatosis (Hfe), hemojuvelin (Hjv), bone morphogenetic protein receptor type 1A (Bmpr1a), and Hamp. Importantly, miR-122 directly targeted the 3′ untranslated region of 2 mRNAs that encode activators of hepcidin expression, Hfe and Hjv. These data help to explain the increased Hamp mRNA levels and subsequent iron deficiency in mice with reduced miR-122 levels and establish a direct mechanistic link between miR-122 and the regulation of systemic iron metabolism.

Indexed as

3' Untranslated RegionsAnimalsAntimicrobial Cationic PeptidesBinding SitesBone Morphogenetic Protein Receptors, Type IDown-RegulationFemaleGene Expression ProfilingHematopoiesis, ExtramedullaryHemochromatosis ProteinHepcidinsHistocompatibility Antigens Class IHomeostasisIronIron DeficienciesLiver3' Untranslated RegionsAntimicrobial Cationic PeptidesBmpr1a protein, mouseBone Morphogenetic Protein Receptors, Type IHamp protein, mouseHemochromatosis ProteinHepcidinsHfe protein, mouseHistocompatibility Antigens Class IIronlocked nucleic acidMembrane ProteinsMicroRNAsMirn122 microRNA, mouseOligonucleotidesRNA, Messenger

Identifiers

PMID21364282
PMCPMC3069782
OpenAlexW2128304272

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.