Evidence map›Paper›PMID 17273772›Full record

ArticleInternational journal of oncology2007

Glioma cells suppress hypoxia-induced endothelial cell apoptosis and promote the angiogenic process.

Ravesanker Ezhilarasan, Indra Mohanam, Kathiravan Govindarajan, Sanjeeva Mohanam

Open access · bronzeAbstract read
In one paragraph

Article in International journal of oncology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.9field-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

19 citing papers in PubMed, 40 citations in OpenAlex.

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  9. Contribution of resident and recruited macrophages to the photodynamic intervention of colorectal tumor microenvironment.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    Article
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  15. Imaging hypoxia in gliomas.The British journal of radiology · 2011
    Review
  16. Article
  17. Review
  18. Article
  19. 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

4 authors at 3 institutions in 1 country.

Ravesanker EzhilarasanDepartment of Cancer Biology and Pharmacology, University of Illinois College of Medicine, Peoria, IL 61605, USA.
Indra Mohanam
Kathiravan Govindarajan
Sanjeeva Mohanam
University of Illinois Urbana-Champaign · USIllinois College · USUniversity of Illinois Chicago · US

Funding

Radiation effects of MMPs in glioma angiogenesisR01NS051625 · NINDS · UNIVERSITY OF ILLINOIS AT CHICAGO · PI MOHANAM, SANJEEVA · 2005 to 2008
$972k
NINDS NIH HHS R01 NS 051625NINDS NIH HHS R01 NS051625
6 · The paper itself

Abstract

The hypoxic microenvironment of solid tumors is associated with malignant progression and it renders tumors more resistant to cancer therapies. Endothelial cell damage may occur following hypoxic conditions and lead to dysfunction; however, endothelial cells in tumors survive hypoxic conditions providing nutrients and oxygen to facilitate tumor growth. In this study, we investigated the effects of tumor-conditioned medium on hypoxia-induced changes in endothelial cell growth, migration and survival. Tumor conditioned medium collected from U87 human glioblastoma cells were applied to endothelial cultures in normoxia or hypoxia conditions. Hypoxia caused a reduction in clonogenic cell survival response and an increase of the sub-G1 phase of the cell cycle in endothelial cells. Cell migration was measured by spheroid and wound-induced migration assays and hypoxia compared with normoxia significantly increased the number of migrating endothelial cells. Nuclear staining with Hoechst 33258 and caspase-9 and -3 activation in endothelial cells show that hypoxia-induced apoptosis involves caspase-dependent mechanism. Exposure to hypoxia caused an increase in gene expression of VEGF and VEGFR2 and activities of MMP-2 and MMP-9. Furthermore, hypoxia induced an increase in capillary-like structure formation in endothelial cells seeded into Matrigel. Tumor conditioned medium enhanced survival and rescued endothelial cells from apoptosis induced by hypoxia. These molecular changes in endothelial cells could, in part, contribute to the angiogenic response that occurs during hypoxia-induced angiogenesis in glial tumors.

Indexed as

ApoptosisHypoxiaNeovascularization, PathologicBrain NeoplasmsCell Line, TumorCell MovementCell NucleusCell ProliferationCollagenCulture Media, ConditionedDrug CombinationsEndothelial CellsGliomaHumansLamininProteoglycansCollagenCulture Media, ConditionedDrug CombinationsLamininmatrigelProteoglycans

Identifiers

PMID17273772
PMCPMC2435071
OpenAlexW2015394268

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.