Evidence map›Paper›PMID 26804704›Full record

ArticleScientific reports2016

Induction of cell death by the novel proteasome inhibitor marizomib in glioblastoma in vitro and in vivo.

Christa A Manton, Blake Johnson, Melissa Singh, Cavan P Bailey, Lisa Bouchier-Hayes, Joya Chandra

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 11% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Review
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  17. Research progress in proteasome inhibitor resistance to multiple myeloma.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2021
    Article
  18. Article
  19. Review
  20. Targeting NADMolecular cancer research : MCR · 2020
    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 3 institutions in 1 country.

Christa A MantonDepartment of Pediatrics Research, University of Texas MD Anderson Cancer Center, Houston, TX 77030.
Blake JohnsonDepartment of Pediatrics Research, University of Texas MD Anderson Cancer Center, Houston, TX 77030.
Melissa SinghDepartment of Pediatrics Research, University of Texas MD Anderson Cancer Center, Houston, TX 77030.
Cavan P BaileyDepartment of Pediatrics Research, University of Texas MD Anderson Cancer Center, Houston, TX 77030.
Lisa Bouchier-HayesDepartment of Pediatrics, Baylor College of Medicine, Houston, TX 77030.
Joya ChandraDepartment of Pediatrics Research, University of Texas MD Anderson Cancer Center, Houston, TX 77030.
The University of Texas MD Anderson Cancer Center · USThe University of Texas Health Science Center at Houston · USBaylor College of Medicine · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
Tropism Enhanced Oncolytic Adenovirus for the Treatment of Brain TumorsP50CA127001 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Juan Fueyo · 2008 to 2026
$41.2M
NCI NIH HHS P30 CA016672NCI NIH HHS P30CA016672NCI NIH HHS P50 CA127001NCI NIH HHS P50CA127001
6 · The paper itself

Abstract

New therapies for glioblastoma (GBM) are needed, as five-year survival is <10%. The proteasome inhibitor marizomib (MRZ) has inhibitory and death-inducing properties unique from previous inhibitors such as bortezomib (BTZ), and has not been well examined in GBM. We evaluated the mechanism of death and in vivo properties of MRZ in GBM. The activation kinetics of initiator caspases 2, 8, and 9 were assessed using chemical and knockdown strategies to determine their contribution to cell death. Blood brain barrier permeance and proteasome inhibition by MRZ and BTZ were examined in an orthotopic GBM model. Blockade of caspase 9, relative to other caspases, was most protective against both MRZ and BTZ. Only MRZ increased the proteasome substrate p27 in orthotopic brain tumors after a single injection, while both MRZ and BTZ increased p21 levels after multiple treatments. Cleavage of caspase substrate lamin A was increased in orthotopic brain tumors from mice treated with MRZ or BTZ and the histone deacetylase inhibitor vorinostat. Our data indicate that MRZ induces caspase 9-dependent death in GBM, suggesting drug efficacy biomarkers and possible resistance mechanisms. MRZ reaches orthotopic brain tumors where it inhibits proteasome function and increases death in combination with vorinostat.

Indexed as

AnimalsApoptosisBiomarkers, TumorBortezomibCaspasesCell Line, TumorGene Expression Regulation, NeoplasticGlioblastomaHumansLactonesMiceProliferating Cell Nuclear AntigenProteasome Endopeptidase ComplexProteasome InhibitorsPyrrolesBiomarkers, TumorBortezomibCaspasesLactonesmarizomibp27 antigenProliferating Cell Nuclear AntigenProteasome Endopeptidase ComplexProteasome InhibitorsPyrroles

Identifiers

PMID26804704
PMCPMC4726202
OpenAlexW2280439538

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.