Evidence map›Paper›PMID 27590511›Full record

ArticleOncotarget2016

Hypoxia-inducible factors regulate pluripotency factor expression by ZNF217- and ALKBH5-mediated modulation of RNA methylation in breast cancer cells.

Chuanzhao Zhang, Wanqing Iris Zhi, Haiquan Lu, Debangshu Samanta, Ivan Chen, Edward Gabrielson, Gregg L Semenza

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 178 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
178citing papers in PubMed, 1 pooled it
14.3field-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

178 citing papers in PubMed, 1 synthesis or guideline pooled it, 267 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Tfcp2l1 as a central integrator of hypoxia, dedifferentiation, and tumor progression.Journal of experimental & clinical cancer research : CR · 2025
    Review
  10. Article
  11. Hsa_circ_0101308 adjusted by N6-methyladenosine (mCancer biomarkers : section A of Disease markers · 2025
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Functions and mechanisms of RNA mInternational journal of oncology · 2024
    Review
  20. Article

118 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

7 authors at 3 institutions in 2 countries.

Chuanzhao ZhangInstitute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Wanqing Iris ZhiDepartment of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Haiquan LuInstitute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Debangshu SamantaInstitute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Ivan ChenInstitute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Edward GabrielsonDepartment of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Gregg L SemenzaInstitute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Johns Hopkins Medicine · USJohns Hopkins University · USGuangdong Academy of Medical Sciences · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Exposure of breast cancer cells to hypoxia increases the percentage of breast cancer stem cells (BCSCs), which are required for tumor initiation and metastasis, and this response is dependent on the activity of hypoxia-inducible factors (HIFs). We previously reported that exposure of breast cancer cells to hypoxia induces the ALKBH5-mediated demethylation of N6-methyladenosine (m6A) in NANOG mRNA leading to increased expression of NANOG, which is a pluripotency factor that promotes BCSC specification. Here we report that exposure of breast cancer cells to hypoxia also induces ZNF217-dependent inhibition of m6A methylation of mRNAs encoding NANOG and KLF4, which is another pluripotency factor that mediates BCSC specification. Although hypoxia induced the BCSC phenotype in all breast-cancer cell lines analyzed, it did so through variable induction of pluripotency factors and ALKBH5 or ZNF217. However, in every breast cancer line, the hypoxic induction of pluripotency factor and ALKBH5 or ZNF217 expression was HIF-dependent. Immunohistochemistry revealed that expression of HIF-1α and ALKBH5 was concordant in all human breast cancer biopsies analyzed. ALKBH5 knockdown in MDA-MB-231 breast cancer cells significantly decreased metastasis from breast to lungs in immunodeficient mice. Thus, HIFs stimulate pluripotency factor expression and BCSC specification by negative regulation of RNA methylation.

Indexed as

AdenosineAlkB Homolog 5, RNA DemethylaseAnimalsBreast NeoplasmsCell HypoxiaFemaleGene Expression Regulation, NeoplasticHumansHypoxiaHypoxia-Inducible Factor 1, alpha SubunitKruppel-Like Factor 4Kruppel-Like Transcription FactorsMCF-7 CellsMethylationMiceMice, SCIDAdenosineALKBH5 protein, humanAlkB Homolog 5, RNA DemethylaseHypoxia-Inducible Factor 1, alpha SubunitKLF4 protein, humanKlf4 protein, mouseKruppel-Like Factor 4Kruppel-Like Transcription FactorsNanog Homeobox ProteinN-methyladenosineRNA, MessengerRNA, Small InterferingTrans-ActivatorsZNF217 protein, humanbreast cancer stem cellshypoxiametastasisN6-methyladenosinepluripotency factors

Identifiers

PMID27590511
PMCPMC5323097
OpenAlexW2510949956

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.