Evidence map›Paper›PMID 24285726›Full record

ArticleCancer research2014

IRP2 regulates breast tumor growth.

Wei Wang, Zhiyong Deng, Heather Hatcher, Lance D Miller, Xiumin Di, Lia Tesfay, Guangchao Sui, Ralph B D'Agostino, Frank M Torti, Suzy V Torti

Abstract read
In one paragraph

Article in Cancer research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 5% 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

84 citing papers in PubMed, 1 synthesis or guideline pooled it, 133 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Programmed cell death in triple-negative breast cancer.Cellular & molecular biology letters · 2025
    Review
  8. Article
  9. Article
  10. RTN4IP1 Contributes to ESCC via Regulation of Amino Acid Transporters.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  11. Review
  12. Iron and Cancer.Advances in experimental medicine and biology · 2025
    Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Iron, Copper, and Selenium: Cancer's Thing for Redox Bling.Cold Spring Harbor perspectives in medicine · 2024
    Review

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

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

10 authors at 1 institution in 1 country.

Wei WangAuthors' Affiliations: Departments of Pathology, Cancer Biology, and Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina; Departments of Molecular, Microbial and Structural Biology and Internal Medicine, University of Connecticut Health Center, Farmington, Connecticut.
Zhiyong Deng
Heather Hatcher
Lance D Miller
Xiumin Di
Lia Tesfay
Guangchao Sui
Ralph B D'Agostino
Frank M Torti
Suzy V Torti
UConn Health · US

Funding

Tumor Tissue CoreP30CA012197 · NCI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI Ruben A. Mesa · 1985 to 2026
$55.4M
Ferroportin and Iron HomeostasisR01CA171101 · NCI · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI TORTI, FRANK M. · 2012 to 2016
$1.7M
NCI NIH HHS P30 CA012197NCI NIH HHS R01 CA171101
6 · The paper itself

Abstract

Experimental and epidemiologic evidence suggests that dysregulation of proteins involved in iron metabolism plays a critical role in cancer. The mechanisms by which cancer cells alter homeostatic iron regulation are just beginning to be understood. Here, we demonstrate that iron regulatory protein 2 (IRP2) plays a key role in iron accumulation in breast cancer. Although both IRP1 and IRP2 are overexpressed in breast cancer, the overexpression of IRP2, but not IRP1, is associated with decreased ferritin H and increased transferrin receptor 1 (TfR1). Knockdown of IRP2 in triple-negative MDA-MB-231 human breast cancer cells increases ferritin H expression and decreases TfR1 expression, resulting in a decrease in the labile iron pool. Further, IRP2 knockdown reduces growth of MDA-MB-231 cells in the mouse mammary fat pad. Gene expression microarray profiles of patients with breast cancer demonstrate that increased IRP2 expression is associated with high-grade cancer. Increased IRP2 expression is observed in luminal A, luminal B, and basal breast cancer subtypes, but not in breast tumors of the ERBB2 molecular subtype. These results suggest that dysregulation of IRP2 is an early nodal point underlying altered iron metabolism in breast cancer and may contribute to poor outcome of some patients with breast cancer.

Indexed as

Gene Expression Regulation, NeoplasticAnimalsAntigens, CDApoferritinsApoptosisBreast NeoplasmsCell Line, TumorCell ProliferationFemaleGene Expression ProfilingHumansIronIron Regulatory Protein 2Mammary Neoplasms, ExperimentalMiceMice, NudeAntigens, CDApoferritinsCD71 antigenIREB2 protein, humanIronIron Regulatory Protein 2Receptors, TransferrinTfrc protein, mouse

Identifiers

PMID24285726
PMCPMC3989290
OpenAlexW2122662579

What OpenQuestion holds

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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.