Evidence map›Paper›PMID 22573309›Full record

ArticleNeuro-oncology2012

uPAR and cathepsin B inhibition enhanced radiation-induced apoptosis in gliomainitiating cells.

Rama Rao Malla, Sreelatha Gopinath, Kiranmai Alapati, Bharathi Gorantla, Christopher S Gondi, Jasti S Rao

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 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Proteases Regulate Cancer Stem Cell Properties and Remodel Their Microenvironment.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2021
    Review
  7. Review
  8. Protein Kinase C: Targets to Regenerate Brain Injuries?Frontiers in cell and developmental biology · 2019
    Article
  9. Effect of MMP-2 gene silencing on radiation-induced DNA damage in human normal dermal fibroblasts and breast cancer cells.Genes and environment : the official journal of the Japanese Environmental Mutagen Society · 2019
    Article
  10. Review
  11. C-glycosyl flavone fromThe Indian journal of medical research · 2018
    Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Novel siRNA delivery strategy: a new "strand" in CNS translational medicine?Cellular and molecular life sciences : CMLS · 2014
    Review
  19. Article
  20. 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

6 authors at 2 institutions in 1 country.

Rama Rao MallaDepartment of Cancer Biology and Pharmacology, University of Illinois College of Medicine at Peoria, One Illini Drive, Peoria, IL 61605, USA.
Sreelatha Gopinath
Kiranmai Alapati
Bharathi Gorantla
Christopher S Gondi
Jasti S Rao
Illinois College · USUniversity of Illinois Urbana-Champaign · US

Funding

Cath B and uPAR si RNA constructs regressed glioma growthR01CA116708 · NCI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI O'BRYAN, JOHN P · 2005 to 2014
$2.9M
NCI NIH HHS CA116708NCI NIH HHS R01 CA116708
6 · The paper itself

Abstract

Glioblastomas present as diffuse tumors with invasion into normal brain tissue and frequently recur or progress after radiation as focal masses because of glioma-initiating cells. The role of the urokinase-type plasminogen activator receptor (uPAR) and cathepsin B in stem-like phenotype has been extensively studied in several solid tumors. In the present study, we demonstrated that selection of glioma-initiating cells using CD133 expression leads to a specific enrichment of CD133(+) cells in both U87 and 4910 cells. In addition, CD133(+) cells exhibited a considerable amount of other stem cell markers, such as Nestin and Sox-2. Radiation treatment significantly enhanced uPAR and cathepsin B levels in glioma-initiating cells. To downregulate radiation-induced uPAR and cathepsin B expression, we used a bicistronic shRNA construct that simultaneously targets both uPAR and cathepsin B (pCU). Downregulation of uPAR and cathepsin B using pCU decreased radiation-enhanced uPAR and cathepsin B levels and caused DNA damage-induced apoptosis in glioma cell lines and glioma-initiating cells. The most striking finding of this study is that knockdown of uPAR and cathepsin B inhibited ongoing transcription by suppressing BrUTP incorporation at γH2AX foci. In addition, uPAR and cathepsin B gene silencing inversely regulated survivin and H2AX expression in both glioma cells and glioma-initiating cells. Pretreatment with pCU reduced radiation-enhanced expression of uPAR, cathepsin B, and survivin and enhanced DNA damage in pre-established glioma in nude mice. Taken together, our in vitro and in vivo findings suggest that uPAR and cathepsin B inhibition might serve as an adjunct to radiation therapy to target glioma-initiating cells and, therefore, for the treatment of glioma.

Indexed as

AnimalsApoptosisBlotting, WesternCathepsin BCell CycleCell Line, TumorDown-RegulationFluorescent Antibody TechniqueGliomaHumansImmunoenzyme TechniquesImmunoprecipitationInhibitor of Apoptosis ProteinsIn Situ Nick-End LabelingMiceMice, NudeBIRC5 protein, humanCathepsin BInhibitor of Apoptosis ProteinsReceptors, Urokinase Plasminogen ActivatorRNA, MessengerRNA, Small InterferingSurvivin

Identifiers

PMID22573309
PMCPMC3367854
OpenAlexW2127970224

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.