Evidence map›Paper›PMID 20671264›Full record

ArticleThe American journal of pathology2010

Hypoxia increases the expression of stem-cell markers and promotes clonogenicity in glioblastoma neurospheres.

Eli E Bar, Alex Lin, Vasiliki Mahairaki, William Matsui, Charles G Eberhart

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 193 papers.

0numbers the graph read from it
0cells of the map it votes in
193citing papers in PubMed
11.5field-weighted citation impact, top 1% 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

193 citing papers in PubMed, 353 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Connexin-Pannexin duality in glioblastoma.Cell and tissue research · 2026
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. Review
  14. Review
  15. Article
  16. Review
  17. Impact of hypoxia on the molecular content of glioblastoma-derived exosomes.Extracellular vesicles and circulating nucleic acids · 2024
    Review
  18. Article
  19. Can CD133 Be Regarded as a Prognostic Biomarker in Oncology: Pros and Cons.International journal of molecular sciences · 2023
    Review
  20. Article

133 more citing papers are in PubMed but not listed here.

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

5 authors at 1 institution in 1 country.

Eli E BarJohns Hopkins University School of Medicine, Department of Pathology, Baltimore, MD 21287, USA. ebar1@jhmi.edu
Alex Lin
Vasiliki Mahairaki
William Matsui
Charles G Eberhart
Johns Hopkins University · US

Funding

Notch signaling in brain tumorsR01NS055089 · NINDS · JOHNS HOPKINS UNIVERSITY · PI EBERHART, CHARLES G · 2007 to 2016
$3.2M
Cancer Stem Cell Targeting in Multiple MyelomaR01CA127574 · NCI · JOHNS HOPKINS UNIVERSITY · PI MATSUI, WILLIAM H · 2008 to 2012
$1.6M
Effectively Targeting Notch in Hypoxic Brain Tumor CellsR56NS055089 · NINDS · JOHNS HOPKINS UNIVERSITY · PI EBERHART, CHARLES G · 2012 to 2012
$405k
NCI NIH HHS R01 CA127574NINDS NIH HHS NS055089NINDS NIH HHS R01 NS055089NINDS NIH HHS R56 NS055089
6 · The paper itself

Abstract

Hypoxia promotes the expansion of non-neoplastic stem and precursor cell populations in the normal brain, and is common in malignant brain tumors. We examined the effects of hypoxia on stem-like cells in glioblastoma (GBM). When GBM-derived neurosphere cultures are grown in 1% oxygen, hypoxia-inducible factor 1alpha (HIF1alpha) protein levels increase dramatically, and mRNA encoding other hypoxic response genes, such as those encoding hypoxia-inducible gene-2, lysyl oxidase, and vascular endothelial growth factor, are induced over 10-fold. Hypoxia increases the stem-like side population over fivefold, and the percentage of cells expressing CD133 threefold or more. Notch pathway ligands and targets are also induced. The rise in the stem-like fraction in GBM following hypoxia is paralleled by a twofold increase in clonogenicity. We believe HIF1alpha plays a causal role in these changes, as when oxygen-stable HIF1alpha is expressed in normoxic glioma cells CD133 is induced. We used digoxin, which has been shown to lower HIF protein levels in vitro and in vivo, to inhibit the hypoxic response. Digoxin suppressed HIF1alpha protein expression, HIF1alpha downstream targets, and slowed tumor growth in vivo. In addition, pretreatment with digoxin reduced GBM flank xenograft engraftment of hypoxic GBM cells, and daily intraperitoneal injections of digoxin were able to significantly inhibit the growth of established subcutaneous glioblastoma xenografts, and suppressed expression of vascular endothelial growth factor.

Indexed as

Blotting, WesternBrain NeoplasmsCell Line, TumorCells, CulturedFlow CytometryGene Expression Regulation, NeoplasticGlioblastomaHumansHypoxiaHypoxia-Inducible Factor 1, alpha SubunitNeoplastic Stem CellsReverse Transcriptase Polymerase Chain ReactionRNA, MessengerVascular Endothelial Growth Factor AHIF1A protein, humanHypoxia-Inducible Factor 1, alpha SubunitRNA, MessengerVascular Endothelial Growth Factor A

Identifiers

PMID20671264
PMCPMC2928980
OpenAlexW2040113269

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.