Evidence map›Paper›PMID 20813964›Full record

ArticleThe American journal of pathology2010

αB-crystallin is elevated in highly infiltrative apoptosis-resistant glioblastoma cells.

Dorota Goplen, Sébastien Bougnaud, Uros Rajcevic, Stig O Bøe, Kai O Skaftnesmo, Juergen Voges, Per Ø Enger, Jian Wang, Berit B Tysnes, Ole D Laerum and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

30 citing papers in PubMed, 64 citations in OpenAlex.

  1. Review
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  17. Level of vitreous alpha-B crystallin in eyes with rhegmatogenous retinal detachment.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2015
    Article
  18. Article
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  20. αB-crystallin: a novel regulator of breast cancer metastasis to the brain.Clinical cancer research : an official journal of the American Association for Cancer Research · 2014
    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

12 authors at 5 institutions in 4 countries.

Dorota GoplenDepartment of Oncology and Medical Physics, Haukeland University Hospital, Jonas Lies vei 91, 5009 Bergen, Norway. dorota@goplen.net
Sébastien Bougnaud
Uros Rajcevic
Stig O Bøe
Kai O Skaftnesmo
Juergen Voges
Per Ø Enger
Jian Wang
Berit B Tysnes
Ole D Laerum
Simone Niclou
Rolf Bjerkvig
University of Bergen · NOLaboratoire National de Santé · LUHaukeland University Hospital · NOGatorade Sports Science Institute · USLeibniz Institute for Neurobiology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have previously established two distinct glioma phenotypes by serial xenotransplantation of human glioblastoma (GBM) biopsies in nude rats. These tumors undergo a gradual transition from a highly invasive nonangiogenic to a less-invasive angiogenic phenotype. In a protein screen to identify molecular markers associated with the infiltrative phenotype, we identified α-basic-crystallin (αBc), a small heat-shock protein with cytoprotective properties. Its increased expression in the infiltrative phenotype was validated by immunohistochemistry and Western blots, confirming its identity to be tumor-derived and not from the host. Stereotactic human GBM biopsies taken from MRI-defined areas verified stronger αBc expression in the infiltrative edge compared to the tumor core. Cell migration assays and immunofluorescence staining showed αBc to be expressed by migrating cells in vitro. To determine αBc function, we altered its expression levels. αBc siRNA depletion caused a loss of migrating tumor cells from biopsy spheroids and delayed monolayer wound closure. In contrast, glioma cell migration in a Boyden chamber assay was unaffected by either αBc knockdown or overexpression, indicating that αBc is not functionally linked to the cell migration machinery. However, after siRNA αBc depletion, a significant sensitization of cells to various apoptotic inducers was observed (actinomycin, tumor necrosis factor α, and TNF-related apoptosis-inducing ligand [TRAIL]). In conclusion, αBc is overexpressed by highly migratory glioma cells where it plays a functional role in apoptosis resistance.

Indexed as

ApoptosisCell Movementalpha-Crystallin B ChainAnimalsBlotting, WesternBrainCell AdhesionCell ProliferationElectrophoresis, Gel, Two-DimensionalFluorescent Antibody TechniqueGene Expression Regulation, NeoplasticGlioblastomaHumansImmunoenzyme TechniquesRatsRats, Nudealpha-Crystallin B ChainRNA, MessengerRNA, Small InterferingTNF-Related Apoptosis-Inducing Ligand

Identifiers

PMID20813964
PMCPMC2947259
OpenAlexW2132529927

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.