Evidence map›Paper›PMID 24092859›Full record

ArticleNeuro-oncology2013

Quinacrine synergistically enhances the antivascular and antitumor efficacy of cediranib in intracranial mouse glioma.

Merryl R Lobo, Sarah C Green, Matthias C Schabel, G Yancey Gillespie, Randall L Woltjer, Martin M Pike

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-oncology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

14 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Blockage of Autophagy for Cancer Therapy: A Comprehensive Review.International journal of molecular sciences · 2024
    Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Sorafenib and Quinacrine Target Anti-Apoptotic Protein MCL1: A Poor Prognostic Marker in Anaplastic Thyroid Cancer (ATC).Clinical cancer research : an official journal of the American Association for Cancer Research · 2016
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. 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 4 institutions in 1 country.

Merryl R LoboCorresponding Author: Martin M. Pike, PhD, Advanced Imaging Research Center, 3181SW Sam Jackson Park Rd, L452 Portland, OR 97239-3098. pikema@ohsu.edu.
Sarah C Green
Matthias C Schabel
G Yancey Gillespie
Randall L Woltjer
Martin M Pike
Oregon Health & Science University · USAdvanced Imaging Research (United States) · USUniversity of Alabama at Birmingham · USUniversity of Utah · US

Funding

MRI Assessment of Anti-angiogenesis in Mouse GliomasR21CA114279 · NCI · OREGON HEALTH & SCIENCE UNIVERSITY · PI PIKE, MARTIN M · 2008 to 2009
$381k
Inhibition of Autophagy Enhances Anti-Angiogenic Efficacy in Intracranial GliomaR21CA167302 · NCI · OREGON HEALTH & SCIENCE UNIVERSITY · PI PIKE, MARTIN M · 2012 to 2013
$358k
NCI NIH HHS 1R21CA114279-01A2NCI NIH HHS 1R21CA167302-01
6 · The paper itself

Abstract

backgroundDespite malignant glioma vascularity, anti-angiogenic therapy is largely ineffective. We hypothesize that efficacy of the antiangiogenic agent cediranib is synergistically enhanced in intracranial glioma via combination with the late-stage autophagy inhibitor quinacrine.

methodsRelative cerebral blood flow and volume (rCBF, rCBV), vascular permeability (K(trans)), and tumor volume were assessed in intracranial 4C8 mouse glioma using a dual-bolus perfusion MRI approach. Tumor necrosis and tumor mean vessel density (MVD) were assessed immunohistologically. Autophagic vacuole accumulation and apoptosis were assessed via Western blot in 4C8 glioma in vitro.

resultsCediranib or quinacrine treatment alone did not alter tumor growth. Survival was only marginally improved by cediranib and unchanged by quinacrine. In contrast, combined cediranib/quinacrine reduced tumor growth by >2-fold (P < .05) and increased median survival by >2-fold, compared with untreated controls (P < .05). Cediranib or quinacrine treatment alone did not significantly alter mean tumor rCBF or K(trans) compared with untreated controls, while combined cediranib/quinacrine substantially reduced both (P < .05), indicating potent tumor devascularization. MVD and necrosis were unchanged by cediranib or quinacrine treatment. In contrast, MVD was reduced by nearly 2-fold (P < .01), and necrosis increased by 3-fold (P < .05, one-tailed), in cediranib + quinacrine treated vs untreated groups. Autophagic vacuole accumulation was induced by cediranib and quinacrine in vitro. Combined cediranib/quinacrine treatment under hypoxic conditions induced further accumulation and apoptosis.

conclusionCombined cediranib/quinacrine treatment synergistically increased antivascular/antitumor efficacy in intracranial 4C8 mouse glioma, suggesting a promising and facile treatment strategy for malignant glioma. Modulations in the autophagic pathway may play a role in the increased efficacy.

Indexed as

AnimalsAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBlotting, WesternCapillary PermeabilityDrug SynergismFemaleGliomaIndolesMagnetic Resonance ImagingMiceMice, Inbred C57BLNeovascularization, PathologicQuinacrineQuinazolinesTumor BurdenBiomarkers, TumorcediranibIndolesQuinacrineQuinazolinesantiangiogenesisautophagycediranibgliomaMRI

Identifiers

PMID24092859
PMCPMC3829589
OpenAlexW2108430781

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.