Evidence map›Paper›PMID 26556862›Full record

ArticleOncotarget2016

MiR-221 promotes stemness of breast cancer cells by targeting DNMT3b.

Giuseppina Roscigno, Cristina Quintavalle, Elvira Donnarumma, Ilaria Puoti, Angel Diaz-Lagares, Margherita Iaboni, Danilo Fiore, Valentina Russo, Matilde Todaro, Giulia Romano and 6 more

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

65 citing papers in PubMed, 90 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Decoding the Epigenome of Breast Cancer.International journal of molecular sciences · 2025
    Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. The Mechanism of DNA Methylation and miRNA in Breast Cancer.International journal of molecular sciences · 2023
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. DNMT3A and DNMT3B in Breast Tumorigenesis and Potential Therapy.Frontiers in cell and developmental biology · 2022
    Review
  15. Article
  16. Review
  17. Review
  18. Methylation and Noncoding RNAs in Gastric Cancer: Everything Is Connected.International journal of molecular sciences · 2021
    Review
  19. Review
  20. Review

5 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

16 authors at 7 institutions in 3 countries.

Giuseppina RoscignoDepartment of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy.
Cristina QuintavalleDepartment of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy.
Elvira DonnarummaIRCCS-SDN, Naples, Italy.
Ilaria PuotiDepartment of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy.
Angel Diaz-LagaresEpigenetic and Cancer Biology Program (PEBC) IDIBELL, Hospital Duran I Reynals, Barcelona, Spain.
Margherita IaboniDepartment of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy.
Danilo FioreDepartment of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy.
Valentina RussoDepartment of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy.
Matilde TodaroDepartment of Surgical and Oncological Sciences, Cellular and Molecular Pathophysiology Laboratory, University of Palermo, Palermo, Italy.
Giulia RomanoDepartment of Molecular Virology, Immunology and Medical Genetics, Human Cancer Genetics Program, Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA.
Renato ThomasDepartment of Surgical and Oncology, Clinica Mediterranea, Naples, Italy.
Giuseppina CortinoDepartment of Surgical and Oncology, Clinica Mediterranea, Naples, Italy.
Miriam GaggianesiDepartment of Surgical and Oncological Sciences, Cellular and Molecular Pathophysiology Laboratory, University of Palermo, Palermo, Italy.
Manel EstellerEpigenetic and Cancer Biology Program (PEBC) IDIBELL, Hospital Duran I Reynals, Barcelona, Spain.
Carlo M CroceDepartment of Molecular Virology, Immunology and Medical Genetics, Human Cancer Genetics Program, Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA.
Gerolama CondorelliDepartment of Molecular Medicine and Medical Biotechnology, "Federico II" University of Naples, Naples, Italy.
University of Naples Federico II · ITCancer Genetics (United States) · USClinica Mediterranea · ITUniversity of Palermo · ITDuran i Reynals Hospital · ESInstitut d'Investigació Biomédica de Bellvitge · ESSDN Istituto di Ricerca Diagnostica e Nucleare · IT

Funding

Cancer Gene Discovery to Identify Targetable TargetsR35CA197706 · NCI · OHIO STATE UNIVERSITY · PI CROCE, CARLO M · 2015 to 2021
$6.4M
NCI NIH HHS R35 CA197706
6 · The paper itself

Abstract

Cancer stem cells (CSCs) are a small part of the heterogeneous tumor cell population possessing self-renewal and multilineage differentiation potential as well as a great ability to sustain tumorigenesis. The molecular pathways underlying CSC phenotype are not yet well characterized. MicroRNAs (miRs) are small noncoding RNAs that play a powerful role in biological processes. Early studies have linked miRs to the control of self-renewal and differentiation in normal and cancer stem cells. We aimed to study the functional role of miRs in human breast cancer stem cells (BCSCs), also named mammospheres. We found that miR-221 was upregulated in BCSCs compared to their differentiated counterpart. Similarly, mammospheres from T47D cells had an increased level of miR-221 compared to differentiated cells. Transfection of miR-221 in T47D cells increased the number of mammospheres and the expression of stem cell markers. Among miR-221's targets, we identified DNMT3b. Furthermore, in BCSCs we found that DNMT3b repressed the expression of various stemness genes, such as Nanog and Oct 3/4, acting on the methylation of their promoters, partially reverting the effect of miR-221 on stemness. We hypothesize that miR-221 contributes to breast cancer tumorigenicity by regulating stemness, at least in part through the control of DNMT3b expression.

Indexed as

Gene Expression Regulation, NeoplasticBlotting, WesternBreast NeoplasmsCell Line, TumorDNA (Cytosine-5-)-MethyltransferasesDNA Methyltransferase 3BGene Expression ProfilingHEK293 CellsHomeodomain ProteinsHumansMCF-7 CellsMicroRNAsMicroscopy, ConfocalNanog Homeobox ProteinNeoplastic Stem CellsOctamer Transcription Factor-3DNA (Cytosine-5-)-MethyltransferasesDNA Methyltransferase 3BHomeodomain ProteinsMicroRNAsMIR221, humanNanog Homeobox ProteinNANOG protein, humanOctamer Transcription Factor-3POU5F1 protein, humanbreast cancercancer stem cellsDNMTmicroRNAs

Identifiers

PMID26556862
PMCPMC4808019
OpenAlexW2234766635

What OpenQuestion holds

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Registered trials

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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.