Evidence map›Paper›PMID 25053875›Full record

ArticleMolecular vision2014

MiRNA-221 negatively regulated downstream p27Kip1 gene expression involvement in pterygium pathogenesis.

Chueh-Wei Wu, Ya-Wen Cheng, Nan-Yung Hsu, Ken-Tu Yeh, Yi-Yu Tsai, Chun-Chi Chiang, Wei-Ran Wang, Jai-Nien Tung

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 22% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. MicroRNA and Their Potential Role in Conjunctival Disorders.Korean journal of ophthalmology : KJO · 2022
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Expression of microRNAs in fibroblast of pterygium.International journal of ophthalmology · 2016
    Article
  12. Article
  13. Article
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

8 authors at 3 institutions in 1 country.

Chueh-Wei WuInstitute of Medicine, Chung Shan Medical University, Taichung, Taiwan ; Department of Pharmacology, Chung Shan Medical University Hospital.
Ya-Wen ChengGraduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.
Nan-Yung HsuGraduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.
Ken-Tu YehDepartment of Pathology, Changhua Christian Hospital, Changhua, Taiwan.
Yi-Yu TsaiDepartment of Ophthalmology, China Medical University Hospital, Taichung, Taiwan.
Chun-Chi ChiangDepartment of Ophthalmology, China Medical University Hospital, Taichung, Taiwan.
Wei-Ran WangGraduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan;
Jai-Nien TungGraduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan ; Department of Neurosurgery, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan.
Taipei Medical University · TWChina Medical University Hospital · TWChanghua Christian Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeMiRNAs are small noncoding RNAs that have been implicated in tumor development. They regulate target gene expression either by mRNA degradation or by translation repression. Activation of β-catenin has been linked to pterygium progression. Here, we hypothesize that β-catenin-associated miRNA, miRNA-221, and downstream p27Kip1 gene expression are correlated with the pathogenesis of pterygium.

methodsWe collected 120 pterygial and 120 normal conjunctival samples for this study. Immunohistochemistry and real-time reverse transcription (RT)-PCR were performed to determine β-catenin protein localization, miR-221, and p27Kip1 gene expression. Pterygium cell line (PECs) cell models were used to confirm the effect of β-catenin, miR-221, and p27Kip1 gene in the proliferation of pterygium cells.

resultsSeventy-two (60.0%) pterygial specimens showed high miR-221 expression levels, which was significantly higher than the control groups (13 of 120, 10.8%, p<0.0001). MiR-221 expression was significantly higher in β-catenin-nuclear/cytoplasmic-positive groups than in β-catenin membrane-positive and negative groups (p=0.001). We also found that p27Kip1 gene expression in pterygium was negatively correlated with miR-221 expression (p=0.002). In the clinical association, miR-221 expression was significantly higher in the fleshy and intermediate groups than in the atrophic group (p=0.007). The association of miR-221, p27Kip1 and proliferation of pterygium were also confirmed in the PECs model.

conclusionsOur study demonstrated that activation of β-catenin in pterygium may interact with miR-221, resulting in p27Kip1 gene downregulation that influences pterygium pathogenesis.

Indexed as

Gene Expression RegulationAgedAged, 80 and overbeta CateninCell LineCell ProliferationConjunctivaCyclin-Dependent Kinase Inhibitor p27FemaleHumansMaleMicroRNAsMiddle AgedModels, BiologicalProtein TransportPterygiumbeta CateninCyclin-Dependent Kinase Inhibitor p27MicroRNAsMIR221, humanRNA, Messenger

Identifiers

PMID25053875
PMCPMC4105113
OpenAlexW1501414433

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.