Evidence map›Paper›PMID 22435731›Full record

ArticleCancer science2012

MiR-21 regulates epithelial-mesenchymal transition phenotype and hypoxia-inducible factor-1α expression in third-sphere forming breast cancer stem cell-like cells.

Mingli Han, Yimeng Wang, Manran Liu, Xiaokai Bi, Junjie Bao, Ni Zeng, Zhikun Zhu, Zhiqiang Mo, Chengyi Wu, Xin Chen

Open access · bronzeAbstract read
In one paragraph

Article in Cancer science, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 1 pooled it
7.7field-weighted citation impact, top 2% 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

73 citing papers in PubMed, 1 synthesis or guideline pooled it, 128 citations in OpenAlex.

  1. Pooled it
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  10. CEA, CA 15-3, and miRNA expression as potential biomarkers in canine mammary tumors.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2021
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  18. Intercalating the Role of MicroRNAs in Cancer: As Enemy or Protector.Asian Pacific journal of cancer prevention : APJCP · 2020
    Review
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  20. Article

13 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 3 institutions in 1 country.

Mingli HanDepartment of General Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Yimeng Wang
Manran Liu
Xiaokai Bi
Junjie Bao
Ni Zeng
Zhikun Zhu
Zhiqiang Mo
Chengyi Wu
Xin Chen
The Affiliated Yongchuan Hospital of Chongqing Medical University · CNChildren's Hospital of Chongqing Medical University · CNDazhou Central Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cancer stem cells (CSCs) are predicted to be critical drivers of tumor progression due to their "stemness", but the molecular mechanism of CSCs in regulating metastasis remains to be elucidated. Epithelial-mesenchymal transition (EMT), hypoxia-inducible factor (HIF)-1α, and miR-21, all of which contribute to cell migration for metastasis, are interrelated with CSCs. In the present study, third-sphere forming (3-S) CSC-like cells, which showed elevated CSC surface markers (ALDH1(+) and CD44(+)/CD24(-/low)) and sphereforming capacity as well as migration and invasion capacities, were cultured and isolated from breast cancer MCF-7 parental cells, to evaluate the role of miR-21 in regulating the CSC-like cell biological features, especially EMT. EMT, which was assessed by overexpression of mesenchymal cell markers (N-cadherin, Vimentin, alpha-smooth muscle actin [α-SMA]) and suppression of epithelial cell marker (E-cadherin), was induced in 3-S CSC-like cells. Moreover, both of HIF-1α and miR-21 were upregulated in the CSC-like cells. Interestingly, antagonism of miR-21 by antagomir led to reversal of EMT, downexpression of HIF-1α, as well as suppression of invasion and migration, which indicates a key role of miR-21 involved in regulate CSC-associated features. In conclusion, we demonstrated that the formation of CSC-like cells undergoing process of EMT-like associated with overexpression of HIF-1α, both of which are regulated by miR-21.

Indexed as

Epithelial-Mesenchymal TransitionActinsAldehyde Dehydrogenase 1 FamilyAntagomirsBreast NeoplasmsCadherinsCD24 AntigenCell Line, TumorCell MovementFemaleGene Expression Regulation, NeoplasticHumansHyaluronan ReceptorsHypoxia-Inducible Factor 1, alpha SubunitIsoenzymesMicroRNAsACTA2 protein, humanActinsAldehyde Dehydrogenase 1 FamilyALDH1A1 protein, humanantagomir-122AntagomirsCadherinsCD24 AntigenHyaluronan ReceptorsHypoxia-Inducible Factor 1, alpha SubunitIsoenzymesMicroRNAsMIRN21 microRNA, humanOligonucleotidesRetinal DehydrogenaseVimentin

Identifiers

PMID22435731
PMCPMC7685092
OpenAlexW1971392922

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.