Evidence map›Paper›PMID 18516297›Full record

ArticleNeoplasia (New York, N.Y.)2008

Notch activation is associated with tetraploidy and enhanced chromosomal instability in meningiomas.

Gilson S Baia, Stefano Stifani, Edna T Kimura, Michael W McDermott, Russell O Pieper, Anita Lal

Open access · goldAbstract read
In one paragraph

Article in Neoplasia (New York, N.Y.), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

28 citing papers in PubMed, 46 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Molecular characteristics of meningiomas.Journal of pathology and translational medicine · 2020
    Review
  11. Near-tetraploid cancer cells show chromosome instability triggered by replication stress and exhibit enhanced invasiveness.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2018
    Article
  12. Review
  13. Notch ligand Delta-like 1 promotes the metastasis of melanoma by enhancing tumor adhesion.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2014
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

6 authors at 4 institutions in 3 countries.

Gilson S BaiaBrain Tumor Research Center, Department of Neurological Surgery, University of California, San Francisco, CA 94143, USA.
Stefano Stifani
Edna T Kimura
Michael W McDermott
Russell O Pieper
Anita Lal
University of California, San Francisco · USMontreal Neurological Institute and Hospital · CANeurological Surgery · USUniversidade de São Paulo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Notch signaling cascade is deregulated in diverse cancer types. Specific Notch function in cancer is dependent on the cellular context, the particular homologs expressed, and cross-talk with other signaling pathways. We have previously shown that components of the Notch signaling pathway are deregulated in meningiomas. However, the functional consequence of abnormal Notch signaling to meningiomas is unknown. Here, we report that exogenous expression of the Notch pathway effector, HES1, is associated with tetraploid cells in meningioma cell lines. Activated Notch1 and Notch2 receptors induced endogenous HES1 expression and were associated with tetraploidy in meningiomas. Tetraploid meningioma cells exhibited nuclear features of chromosomal instability and increased frequency of nuclear atypia, such as multipolar mitotic spindles and accumulation of cells with large nuclei. FACS-sorted tetraploid cells are viable but have higher rates of spontaneous apoptosis when compared with diploid cells. We have used spectral karyotyping to show that, in contrast to diploid cells, tetraploid cells develop a higher number of both numerical and structural chromosomal abnormalities. Our findings identify a novel function for the Notch signaling pathway in generating tetraploidy and contributing to chromosomal instability. We speculate that abnormal Notch signaling pathway is an initiating genetic mechanism for meningioma and potentially promotes tumor development.

Indexed as

Chromosomal InstabilityApoptosisCell Line, TumorCell SeparationCell SurvivalChromosome AberrationsFlow CytometryHumansKaryotypingMeningiomaPloidiesPromoter Regions, GeneticReceptors, NotchSignal TransductionReceptors, Notch

Identifiers

PMID18516297
PMCPMC2386545
OpenAlexW1607487366

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.