Evidence map›Paper›PMID 21091647›Full record

ArticleBritish journal of pharmacology2011

Rescuing iron-overloaded macrophages by conservative relocation of the accumulated metal.

Yang-Sung Sohn, Anna-Maria Mitterstiller, William Breuer, Guenter Weiss, Z Ioav Cabantchik

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In one paragraph

Article in British journal of pharmacology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.0field-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

20 citing papers in PubMed, 34 citations in OpenAlex.

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  14. The Fe-S cluster-containing NEET proteins mitoNEET and NAF-1 as chemotherapeutic targets in breast cancer.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  15. Cancer cells with irons in the fire.Free radical biology & medicine · 2015
    Review
  16. Iron at the interface of immunity and infection.Frontiers in pharmacology · 2014
    Review
  17. Review
  18. Review
  19. NAF-1 and mitoNEET are central to human breast cancer proliferation by maintaining mitochondrial homeostasis and promoting tumor growth.Proceedings of the National Academy of Sciences of the United States of America · 2013 · on this map
    Article
  20. On improvement in ejection fraction with iron chelation in thalassemia major and the risk of future heart failure.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2011
    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

5 authors at 2 institutions in 2 countries.

Yang-Sung SohnDepartment of Biological Chemistry, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Edmond Safra Campus at Givat Ram, Jerusalem, Israel.
Anna-Maria Mitterstiller
William Breuer
Guenter Weiss
Z Ioav Cabantchik
Hebrew University of Jerusalem · ILUniversität Innsbruck · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeSystemic iron deficiency concomitant with macrophage iron retention is characteristic of iron-refractory anaemias associated with chronic disease. The systemic misdistribution of iron, which is further exacerbated by parenteral iron supplementation, is mainly attributable to iron retention exerted on resident macrophages by hepcidin-mediated down-regulation of the iron exporter ferroportin. We aimed at developing an experimental macrophage-based cell model that recapitulates pathophysiological features of iron misdistribution found in chronic disorders and use it as a screening platform for identifying agents with the potential for relocating the accumulated metal and restoring affected functions. EXPERIMENTAL APPROACH: A raw macrophage subline was selected as cell model of iron retention based on their capacity to take up polymeric iron or aged erythrocytes excessively, resulting in a demonstrable increase of cell labile iron pools and oxidative damage that are aggravated by hepcidin. KEY

resultsThis model provided a three-stage high throughput screening platform for identifying agents with the combined ability to: (i) scavenge cell iron and thereby rescue macrophage cells damaged by iron-overload; (ii) bypass the ferroportin blockade by conveying the scavenged iron to other iron-starved cells in co-culture via transferrin but (iii) without promoting utilization of the scavenged iron by intracellular pathogens. As test agents we used chelators in clinical practice and found the oral chelator deferiprone fulfilled essentially all of the three criteria. CONCLUSIONS AND IMPLICATIONS: We provide a proof of principle for conservative iron relocation as complementary therapeutic approach for correcting the misdistribution of iron associated with chronic disease and exacerbated by parenteral iron supplementation.

Indexed as

Anemia, Iron-DeficiencyAnimalsAntimicrobial Cationic PeptidesBiological TransportCation Transport ProteinsCells, CulturedCoculture TechniquesDeferiproneEndocytosisErythrocytesFerroportinHepcidinsHumansIronIron Chelating AgentsIron OverloadAntimicrobial Cationic PeptidesCation Transport ProteinsDeferiproneFerroportinHAMP protein, humanHamp protein, mouseHepcidinsIronIron Chelating AgentsPyridonesTransferrin

Identifiers

PMID21091647
PMCPMC3188895
OpenAlexW1505856406

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.