Evidence map›Paper›PMID 21346411›Full record

ArticleCell cycle (Georgetown, Tex.)2011

A precursor microRNA in a cancer cell nucleus: get me out of here!

Sonia A Melo, Manel Esteller

Open access · hybridAbstract read
In one paragraph

Article in Cell cycle (Georgetown, Tex.), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

27 citing papers in PubMed, 46 citations in OpenAlex.

  1. Prognostic significance of exportin-5 in hepatocellular carcinoma.World journal of gastrointestinal oncology · 2024
    Article
  2. Article
  3. Identification of crucial genes involved in thyroid cancer development.Journal of the Egyptian National Cancer Institute · 2023
    Review
  4. Article
  5. Article
  6. Article
  7. miRNA-Processing Gene Methylation and Cancer Risk.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2018
    Article
  8. Article
  9. Article
  10. Solid-Phase Synthesis of RNA Analogs Containing Phosphorodithioate Linkages.Current protocols in nucleic acid chemistry · 2017
    Article
  11. Article
  12. Article
  13. MicroRNA Processing and Human Cancer.Journal of clinical medicine · 2015
    Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Stop the dicing in hematopoiesis: what have we learned?Cell cycle (Georgetown, Tex.) · 2012
    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

2 authors at 1 institution in 1 country.

Sonia A MeloCancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain.
Manel Esteller
Institut d'Investigació Biomédica de Bellvitge · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In line with their broad-based effects, microRNAs (miRNAs), small non-coding RNA molecules ~22 nucleotides long that silence target mRNAs, are thought to act as oncogenes or tumor suppressor genes based on their inhibition of tumor-suppressive and oncogenic mRNAs, respectively. We and others previously showed that global downregulation of miRNAs, a common feature of human tumors, is functionally relevant to oncogenesis as impairment of miRNA biogenesis enhanced transformation in both cancer cells and a K-Ras-driven model of lung cancer. The dysregulation of miRNA biosynthesis in cancer emerges as a cancer-specific mechanism that enhances its tumorigenic capacity. These observations are further supported by the fact that frameshift mutations of TARBP2 occur in sporadic and hereditary carcinomas with microsatellite instability and that DICER1 mutations are associated with familial pleuropulmonary blastoma. Accordingly, it was reported that reduced expression of miRNA-processing factors is associated with poor prognosis in lung cancer and ovarian cancer. Recently we have also demonstrated the presence of Exportin 5 (XPO5) inactivating mutations in tumors with microsatellite instability. This observed genetic defect is responsible for nuclear retention of pre-miRNAs, thereby reducing miRNA processing. The characterized mutant form of the XPO5 protein lacks a C-terminal region that contributes to the formation of the pre-miRNA/XPO5/Ran-GTP ternary complex and the protein itself, as well as pre-miRNAs accumulating in the nucleus of cancer cells. Most importantly, the restoration of XPO5 function reverses the impaired export of pre-miRNAs and has tumor suppressor features. Our data suggest a cancer-specific mechanism to guide the subcellular distribution of miRNA precursors and prevent them from being processed to the active mature miRNA. The control of the miRNA biosynthesis pathway is emerging as an important mechanism in defining the spatiotemporal pattern of miRNA expression in cancer cells.

Indexed as

Gene Expression Regulation, NeoplasticCell NucleusDEAD-box RNA HelicasesDown-RegulationHumansKaryopherinsLung NeoplasmsMicroRNAsMicrosatellite InstabilityMutationRibonuclease IIIRNA-Binding ProteinsRNA PrecursorsTrans-Activation Responsive RNA-Binding ProteinDEAD-box RNA HelicasesDICER1 protein, humanKaryopherinsMicroRNAsRibonuclease IIIRNA-Binding ProteinsRNA PrecursorsTrans-Activation Responsive RNA-Binding ProteinXPO5 protein, human

Identifiers

PMID21346411
PMCPMC3100873
OpenAlexW2276249355

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.