Evidence map›Paper›PMID 22354011›Full record

ArticleCancer biology & therapy2012

OSU-03012 suppresses GRP78/BiP expression that causes PERK-dependent increases in tumor cell killing.

Laurence Booth, Sophie C Cazanave, Hossein A Hamed, Adly Yacoub, Besim Ogretmen, Ching-Shih Chen, Steven Grant, Paul Dent

Open access · bronzeAbstract read
In one paragraph

Article in Cancer biology & therapy, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

35 citing papers in PubMed, 53 citations in OpenAlex.

  1. Review
  2. Review
  3. GRP78 Activity Moderation as a Therapeutic Treatment against Obesity.International journal of environmental research and public health · 2022
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Kinase inhibitors: look beyond the label on the bottle.Cancer drug resistance (Alhambra, Calif.) · 2019
    Review
  13. The oncogenic neurotrophin receptor tropomyosin-related kinase variant, TrkAIII.Journal of experimental & clinical cancer research : CR · 2018
    Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  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

8 authors at 4 institutions in 2 countries.

Laurence BoothDepartment of Neurosurgery, Virginia Commonwealth University, Richmond, USA.
Sophie C Cazanave
Hossein A Hamed
Adly Yacoub
Besim Ogretmen
Ching-Shih Chen
Steven Grant
Paul Dent
University of Richmond · USVirginia Commonwealth University · USCollege of Charleston · USInstitute of Medicinal Plant Development · CN

Funding

Translational Applications of mda-7/IL-24 in CancerP01CA104177 · NCI · VIRGINIA COMMONWEALTH UNIVERSITY · PI FISHER, PAUL B · 2005 to 2009
$6.5M
SIGNALING PATHWAYS REGULATING EPITHELIAL CELL SURVIVALR01DK052825 · NIDDK · VIRGINIA COMMONWEALTH UNIVERSITY · PI DENT, PAUL · 1999 to 2013
$3.3M
Promotion of Nucleoside Analog Induced Apoptosis by HDIsR01CA063753 · NCI · VIRGINIA COMMONWEALTH UNIVERSITY · PI GRANT, STEVEN · 1994 to 2008
$2.2M
OSU-03012 therapy for glioblastomaR01CA141703 · NCI · VIRGINIA COMMONWEALTH UNIVERSITY · PI DENT, PAUL · 2010 to 2014
$1.5M
Lapatinib and Obatoclax combination therapyR01CA150214 · NCI · VIRGINIA COMMONWEALTH UNIVERSITY · PI DENT, PAUL · 2010 to 2014
$1.5M
NCI NIH HHS P01 CA104177NCI NIH HHS P01-CA104177NCI NIH HHS R01 CA063753NCI NIH HHS R01-CA141188NCI NIH HHS R01 CA141703NCI NIH HHS R01 CA150214NCI NIH HHS R01-CA63753NCI NIH HHS R01-CA77141NIDDK NIH HHS R01 DK052825NIDDK NIH HHS R01-DK52825
6 · The paper itself

Abstract

We have further defined mechanism(s) by which the drug OSU-03012 (OSU) kills tumor cells. OSU lethality was suppressed by knock down of PERK and enhanced by knock down of ATF6 and IRE1α. OSU treatment suppressed expression of the chaperone, BiP/GRP78, and did so through reduced stability of the protein. Knock down of BiP/GRP78 further enhanced OSU lethality. Overexpression of BiP/GRP78 abolished OSU toxicity. Pre-treatment of cells with OSU enhanced radiosensitivity to a greater extent than concomitant or sequential drug treatment with radiation exposure. Expression of a mutant active p110 PI3K, or mutant active forms of the EGFR in GBM cells did not differentially suppress OSU killing. In contrast loss of PTEN function reduced OSU lethality, without altering AKT, p70 S6K or mTOR activity, or the drug's ability to radiosensitize GBM cells. Knock down of PTEN protected cells from OSU and radiation treatment whereas re-expression of PTEN facilitated drug lethality and radiosensitization. In a dose-dependent fashion OSU prolonged the survival of mice carrying GBM tumors and interacted with radiotherapy to further prolong survival. Collectively, our data show that reduced BiP/GRP78 levels play a key role in OSU-3012 toxicity in GBM cells, and that this drug has in vivo activity against an invasive primary human GBM isolate.

Indexed as

AnimalsCell DeathCell Line, TumorCell SurvivalColonic NeoplasmseIF-2 KinaseEndoplasmic Reticulum Chaperone BiPGene Knockdown TechniquesGlioblastomaHeat-Shock ProteinsHumansMicePTEN PhosphohydrolasePyrazolesSulfonamidesTransfectioneIF-2 KinaseEndoplasmic Reticulum Chaperone BiPHeat-Shock ProteinsHSPA5 protein, humanHspa5 protein, mouseOSU 03012PTEN PhosphohydrolasePTEN protein, humanPten protein, mousePyrazolesSulfonamides

Identifiers

PMID22354011
PMCPMC3336069
OpenAlexW1972746043

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.