Evidence map›Paper›PMID 18599610›Full record

ArticleThe American journal of pathology2008

Increased survivin expression confers chemoresistance to tumor-associated endothelial cells.

Jenilyn J Virrey, Shengxi Guan, Wei Li, Axel H Schönthal, Thomas C Chen, Florence M Hofman

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The American journal of pathology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

48 citing papers in PubMed, 95 citations in OpenAlex.

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  15. Bioinformatics analysis of BIRC5 in human cancers.Annals of translational medicine · 2022
    Article
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  19. Tumor microenvironment promotes breast cancer chemoresistance.Cancer chemotherapy and pharmacology · 2021
    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

6 authors at 3 institutions in 2 countries.

Jenilyn J VirreyDepartments of Pathology, University of Southern California, Keck School of Medicine, 2011 Zonal Ave., HMR 315A, Los Angeles, CA 90033, USA.
Shengxi Guan
Wei Li
Axel H Schönthal
Thomas C Chen
Florence M Hofman
University of Southern California · USLaboratoire de Biochimie · FRUniversity Dermatology · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Growing evidence suggests that survivin, a member of the inhibitor of apoptosis gene family, is responsible for drug resistance in cancer cells, yet little is known about its role in the endothelial cells of the tumor vasculature. We have previously reported that tumor-associated endothelial cells derived from gliomas (TuBECs) are resistant to anticancer chemotherapy whereas normal brain endothelial cells (BECs) are sensitive. The focus of this study is to investigate the mechanism behind this chemoresistance. Here we show that survivin is constitutively overexpressed in the glioma vasculature but not in the blood vessels of normal brain. To determine whether survivin contributes to TuBEC chemoresistance, we used a lentiviral siRNA system or the drug roscovitine to down-regulate survivin expression. Reduced levels of survivin sensitized TuBECs to the chemotherapeutic agents VP-16, paclitaxel, thapsigargin, and temozolomide. This cell death was mediated through caspases 7 and 4. Conversely, forced expression of survivin in BECs was protective against drug cytotoxicity. These data suggest that overexpression of survivin in endothelial cells serves as a protective mechanism that defends the vasculature from drug cytotoxicity. Our studies demonstrate that targeting survivin may be an effective approach to chemosensitization and anti-vascular therapy for brain tumors.

Indexed as

Antineoplastic AgentsBrainBrain NeoplasmsCells, CulturedCell SurvivalDrug Resistance, NeoplasmEndothelial CellsEndothelium, VascularGliomaHumansInhibitor of Apoptosis ProteinsMicrotubule-Associated ProteinsNeoplasm ProteinsSurvivinAntineoplastic AgentsBIRC5 protein, humanInhibitor of Apoptosis ProteinsMicrotubule-Associated ProteinsNeoplasm ProteinsSurvivin

Identifiers

PMID18599610
PMCPMC2475793
OpenAlexW2005742227

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.