Evidence map›Paper›PMID 22723427›Full record

ArticleNeuro-oncology2012

EphB2 activity plays a pivotal role in pediatric medulloblastoma cell adhesion and invasion.

Arend H Sikkema, Wilfred F A den Dunnen, Esther Hulleman, Dannis G van Vuurden, Guillermo Garcia-Manero, Hui Yang, Frank J G Scherpen, Kim R Kampen, Eelco W Hoving, Willem A Kamps and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-oncology, 2012. 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
2.1field-weighted citation impact, top 13% 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, 54 citations in OpenAlex.

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  10. The Roles of EphB2 in Cancer.Frontiers in cell and developmental biology · 2022
    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

13 authors at 6 institutions in 2 countries.

Arend H SikkemaDepartment of Pediatric Oncology/Hematology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, Groningen, the Netherlands.
Wilfred F A den Dunnen
Esther Hulleman
Dannis G van Vuurden
Guillermo Garcia-Manero
Hui Yang
Frank J G Scherpen
Kim R Kampen
Eelco W Hoving
Willem A Kamps
Sander H Diks
Maikel P Peppelenbosch
Eveline S J M de Bont
Amsterdam UMC Location VUmc · NLErasmus MC · NLUniversity Medical Center Groningen · NLUniversity of Groningen · NLErasmus University Rotterdam · NLThe University of Texas MD Anderson Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Eph/ephrin signaling has been implicated in various types of key cancer-enhancing processes, like migration, proliferation, and angiogenesis. In medulloblastoma, invading tumor cells characteristically lead to early recurrence and a decreased prognosis. Based on kinase-activity profiling data published recently, we hypothesized a key role for the Eph/ephrin signaling system in medulloblastoma invasion. In primary medulloblastoma samples, a significantly higher expression of EphB2 and the ligand ephrin-B1 was observed compared with normal cerebellum. Furthermore, medulloblastoma cell lines showed high expression of EphA2, EphB2, and EphB4. Stimulation of medulloblastoma cells with ephrin-B1 resulted in a marked decrease in in vitro cell adhesion and an increase in the invasion capacity of cells expressing high levels of EphB2. The cell lines that showed an ephrin-B1-induced phenotype possessed increased levels of phosphorylated EphB2 and, to a lesser extent, EphB4 after stimulation. Knockdown of EphB2 expression by short hairpin RNA completely abolished ephrin ligand-induced effects on adhesion and migration. Analysis of signal transduction identified p38, Erk, and mTOR as downstream signaling mediators potentially inducing the ephrin-B1 phenotype. In conclusion, the observed deregulation of Eph/ephrin expression in medulloblastoma enhances the invasive phenotype, suggesting a potential role in local tumor cell invasion and the formation of metastases.

Indexed as

ApoptosisBlotting, WesternCell AdhesionCell MovementCell ProliferationCerebellar NeoplasmsChildDNA MethylationEphrin-B1Gene Expression Regulation, NeoplasticHumansMedulloblastomaPhosphorylationPromoter Regions, GeneticReal-Time Polymerase Chain ReactionReceptor, EphB2Ephrin-B1Receptor, EphB2RNA, MessengerRNA, Small Interfering

Identifiers

PMID22723427
PMCPMC3424207
OpenAlexW2109272934

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.