Evidence map›Paper›PMID 22393463›Full record

ArticleGenes & cancer2011

Epigenetic Silencing of miR-203 Upregulates SNAI2 and Contributes to the Invasiveness of Malignant Breast Cancer Cells.

Zhiqian Zhang, Baotong Zhang, Weidong Li, Liya Fu, Li Fu, Zhengmao Zhu, Jin-Tang Dong

Open access · bronzeAbstract read
In one paragraph

Article in Genes & cancer, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed
4.0field-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

94 citing papers in PubMed, 178 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Cell adhesion & migration · 2026
    Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. miR-205-5p Downregulation andInternational journal of molecular sciences · 2021
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

34 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 4 institutions in 2 countries.

Zhiqian ZhangCollege of Life Sciences, Nankai University, Tianjin, China.
Baotong Zhang
Weidong Li
Liya Fu
Li Fu
Zhengmao Zhu
Jin-Tang Dong
Nankai University · CNEmory University · USTianjin Medical University · CNTianjin Medical University Cancer Institute and Hospital · CN

Funding

MOLECULAR DISSECTION OF 13Q14 IN PROSTATE CANCERR01CA085560 · NCI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI DONG, JIN-TANG · 2000 to 2010
$2.5M
NCI NIH HHS R01 CA085560
6 · The paper itself

Abstract

It has become increasingly clear that microRNAs (miRNAs) play important roles in tumorigenesis and metastasis. Recently, miR-203 was reported as a suppressor microRNA often silenced in different malignancies including hepatocellular carcinoma, prostate cancer, oral cancer, and hematopoietic malignancy, but little is known about its potential role in breast carcinogenesis. In this study, we found that in breast cancer, miR-203 was upregulated in primary tumors and some nonmetastatic cell lines but was significantly downregulated in metastatic cell lines including BT549, Hs578T, and MDA-MB-231, as measured by regular and real-time PCR. Downregulation of miR-203 in metastatic breast cancer cells appeared to be caused by hypermethylation of its promoter. Functionally, ectopic expression of miR-203 in BT549 and MDA-MB-231 breast cancer cell lines caused cell cycle arrest and apoptosis and inhibited cell invasion and migration in vitro. Bioinformatic analysis predicted the snail homolog 2 (SNAI2 or SLUG), a transcription factor that promotes cell invasion and tumor metastasis, as a target of miR-203, and the prediction was validated by expression analysis and luciferase reporter assay of the 3' untranslated region of SNAI2 that contains the miR-203 target sequences. These results suggest that in malignant breast cancer cells, miR-203 is epigenetically silenced, and the silencing promotes tumor cell growth and invasion at least in part by upregulating the SNAI2 transcription factor.

Indexed as

breast cancerinvasionmigrationmiR-203SNAI2

Identifiers

PMID22393463
PMCPMC3278899
OpenAlexW2147057201

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.