Evidence map›Paper›PMID 24383407›Full record

ArticleDNA and cell biology2014

Let-7a functions as a tumor suppressor in Ewing's sarcoma cell lines partly by targeting cyclin-dependent kinase 6.

Zhongzu Zhang, Lu Huang, Zhiming Yu, Xiang Chen, Dong Yang, Ping Zhan, Min Dai, Shanhu Huang, Zhimin Han, Kai Cao

RetractedOpen access · greenAbstract readRetracted Publication
In one paragraph

Article in DNA and cell biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 32 citations in OpenAlex.

  1. Development of 5-FU-modified tumor suppressor microRNAs as a platform for novel microRNA-based cancer therapeutics.Molecular therapy : the journal of the American Society of Gene Therapy · 2022
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  17. MicroRNAs in the pathobiology of sarcomas.Laboratory investigation; a journal of technical methods and pathology · 2015
    Review
  18. What Do We Know about the Role of miRNAs in Pediatric Sarcoma?International journal of molecular sciences · 2015
    Review
  19. Article
  20. Review
4 · The record

Corrections and comments

  • Retraction · 2022-03-30Author Unresponsive · Duplication of/in Image · Investigation by Journal/Publisher ·
  • Retracted
    2022
5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Zhongzu Zhang1 The Department of Orthopedic Surgery, The First Affiliated Hospital, Nanchang University , Nanchang, People's Republic of China .
Lu Huang
Zhiming Yu
Xiang Chen
Dong Yang
Ping Zhan
Min Dai
Shanhu Huang
Zhimin Han
Kai Cao
Nanchang University · CNJiangxi Maternal and Child Health Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

MicroRNAs play an important role in the development and progression of Ewing's sarcoma (ES). Especially, the expression of let-7a has been reported to be significantly downregulated in various cancers, and can affect the initiation and maintenance of tumor progression. However, the relative effects of let-7a on ES cells and relative mechanisms are largely unknown. In this study, we identified the underexpression of let-7a in human ES cells comparing with the human mesenchymal stem cells. Then, we sought to compensate for its loss through exogenous transfection with let-7a mimic into ES cell lines A673 and SK-ES-1. Restored let-7a expression inhibited cell proliferation, migration, as well as invasion; arrested cell cycle progression; and induced cell apoptosis of both cell lines. Moreover, bioinformatic prediction suggested that cyclin-dependent kinase 6 (CDK6), which is overexpressed and functions as an oncoprotein in ES cells, is a putative target gene of let-7a. Using mRNA and protein expression analysis and luciferase assays, we further identified the target role of CDK6. Finally, we found that restored CDK6 expression in ES cells that had been treated with let-7a mimic before could partly dampen let-7a-mediated tumor suppression. Taken together, our results showed that let-7a acted as a tumor suppressor in ES by targeting CDK6, and it may provide novel diagnostic and therapeutic options for human Ewing sarcoma clinical operation in future.

Indexed as

Base SequenceCell Line, TumorCell ProliferationCyclin-Dependent Kinase 6DNA PrimersDown-RegulationG1 PhaseGene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticHumansMicroRNAsPolymerase Chain ReactionSarcoma, EwingCDK6 protein, humanCyclin-Dependent Kinase 6DNA PrimersMicroRNAsmirnlet7 microRNA, human

Identifiers

PMID24383407
PMCPMC3942682
OpenAlexW1979169560

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.