Evidence map›Paper›PMID 26501139›Full record

ArticlePloS one2015

miR-221 Promotes Epithelial-Mesenchymal Transition through Targeting PTEN and Forms a Positive Feedback Loop with β-catenin/c-Jun Signaling Pathway in Extra-Hepatic Cholangiocarcinoma.

Jianguo Li, Lei Yao, Guodong Li, Donglai Ma, Chen Sun, Shuang Gao, Ping Zhang, Feng Gao

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
5.9field-weighted citation impact, top 3% 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

31 citing papers in PubMed, 47 citations in OpenAlex.

  1. Review
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  5. Wnt/β-Catenin Signaling in Liver Pathobiology.Annual review of pathology · 2025
    Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. The Role of microRNAs in Cholangiocarcinoma.International journal of molecular sciences · 2021
    Review
  12. Review
  13. Review
  14. Article
  15. Review
  16. Review
  17. Review
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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 4 institutions in 1 country.

Jianguo LiDepartment of General Surgery, the First Affiliated Hospital of JILIN University, Changchun, 130021, P.R. China.
Lei YaoDepartment of General Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, P.R. China.
Guodong LiDepartment of General Surgery, the Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, P.R. China.
Donglai MaDepartment of General Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, P.R. China.
Chen SunDepartment of General Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, P.R. China.
Shuang GaoHeilongjiang Nursing College, Harbin, 150086, P.R. China.
Ping ZhangDepartment of General Surgery, the First Affiliated Hospital of JILIN University, Changchun, 130021, P.R. China.
Feng GaoDepartment of General Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, P.R. China.
Second Affiliated Hospital of Harbin Medical University · CNHarbin Medical University · CNFirst Hospital of Jilin University · CNJilin University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Extrahepatic cholangiocarcinoma (EHCC) is a refractory malignancy with poor prognosis due to its early invasion, metastasis and recurrence after operation. Therefore, understanding the mechanisms of invasion and metastasis is the key to the development of new and effective therapeutic strategies for EHCC. In the present study we demonstrated that miR-221 promoted EHCC invasion and metastasis through targeting PTEN and formed a positive feedback loop with β-catenin/c-Jun signaling pathway. We found miR-221 was upregulated in EHCC specimens and CC cell lines. Moreover, miR-221 was found strongly associated with the metastasis and prognosis of EHCC patients. The expression of PTEN was downregulated in EHCC patients and CC cell lines, and was further demonstrated as one of the downstream targets of miR-221. In addition, our data indicated that β-catenin activated miR-221 through c-jun, while miR-221 enhanced β-catenin signaling induced-epithelial-mesenchymal transition (EMT) by targeting PTEN, hence forming a positive feedback loop in EHCC cell lines. In conclusion, our results suggested that miR-221 promotes EMT through targeting PTEN and forms a positive feedback loop with β-catenin/c-Jun signaling pathway in EHCC.

Indexed as

beta CateninBlotting, WesternCell Line, TumorCell MovementCholangiocarcinomaEpithelial-Mesenchymal TransitionGene Expression Regulation, NeoplasticHumansLiverMicroRNAsPTEN PhosphohydrolaseReal-Time Polymerase Chain Reactionbeta CateninMicroRNAsMIR221, humanPTEN PhosphohydrolasePTEN protein, human

Identifiers

PMID26501139
PMCPMC4621024
OpenAlexW2166572346

What OpenQuestion holds

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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.