Evidence map›Paper›PMID 22190279›Full record

ArticleNMR in biomedicine2012

DCE and DW-MRI monitoring of vascular disruption following VEGF-Trap treatment of a rat glioma model.

Benjamin A Hoff, Mahaveer S Bhojani, John Rudge, Thomas L Chenevert, Charles R Meyer, Stefanie Galbán, Timothy D Johnson, Judith Sebolt Leopold, Alnawaz Rehemtulla, Brian D Ross and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in NMR in biomedicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 7% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Monitoring Pharmacological Treatment of Breast Cancer with MRI.Current issues in molecular biology · 2025
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  8. Technology for Innovation in Radiation Oncology.International journal of radiation oncology, biology, physics · 2015
    Article
  9. Article
  10. Article
  11. Article
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  13. Article
  14. Article
  15. Article
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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

11 authors at 3 institutions in 1 country.

Benjamin A HoffDepartment of Radiology, University of Michigan, Center for Molecular Imaging, Ann Arbor, MI 48109, USA.
Mahaveer S Bhojani
John Rudge
Thomas L Chenevert
Charles R Meyer
Stefanie Galbán
Timothy D Johnson
Judith Sebolt Leopold
Alnawaz Rehemtulla
Brian D Ross
Craig J Galbán
Michigan Medicine · USUniversity of Michigan–Ann Arbor · USRegeneron (United States) · US

Funding

QUANTITATION OF HUMAN BRAIN TUMOR THERAPY RESPONSE BY MRP01CA085878 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI CHENEVERT, THOMAS L · 2001 to 2017
$31.9M
Small Animal Imaging CoreP50CA093990 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ROSS, BRIAN D. · 2002 to 2012
$19.0M
NCI NIH HHS P01 CA085878NCI NIH HHS P01CA85878NCI NIH HHS P50 CA093990NCI NIH HHS P50CA93990
6 · The paper itself

Abstract

Vascular-targeted therapies have shown promise as adjuvant cancer treatment. As these agents undergo clinical evaluation, sensitive imaging biomarkers are needed to assess drug target interaction and treatment response. In this study, dynamic contrast enhanced MRI (DCE-MRI) and diffusion-weighted MRI (DW-MRI) were evaluated for detecting response of intracerebral 9 L gliosarcomas to the antivascular agent VEGF-Trap, a fusion protein designed to bind all forms of Vascular Endothelial Growth Factor-A (VEGF-A) and Placental Growth Factor (PGF). Rats with 9 L tumors were treated twice weekly for two weeks with vehicle or VEGF-Trap. DCE- and DW-MRI were performed one day prior to treatment initiation and one day following each administered dose. Kinetic parameters (K(trans), volume transfer constant; k(ep), efflux rate constant from extravascular/extracellular space to plasma; and v(p), blood plasma volume fraction) and the apparent diffusion coefficient (ADC) over the tumor volumes were compared between groups. A significant decrease in kinetic parameters was observed 24 hours following the first dose of VEGF-Trap in treated versus control animals (p < 0.05) and was accompanied by a decline in ADC values. In addition to the significant hemodynamic effect, VEGF-Trap treated animals exhibited significantly longer tumor doubling times (p < 0.05) compared to the controls. Histological findings were found to support imaging response metrics. In conclusion, kinetic MRI parameters and change in ADC have been found to serve as sensitive and early biomarkers of VEGF-Trap anti-vascular targeted therapy.

Indexed as

Angiogenesis InhibitorsAnimalsApoptosisBrain NeoplasmsContrast MediaDiffusionDiffusion Magnetic Resonance ImagingDisease Models, AnimalGliomaHemodynamicsMaleNeovascularization, PathologicRatsReceptors, Vascular Endothelial Growth FactorRecombinant Fusion ProteinsTumor BurdenafliberceptAngiogenesis InhibitorsContrast MediaReceptors, Vascular Endothelial Growth FactorRecombinant Fusion Proteins

Identifiers

PMID22190279
PMCPMC4307830
OpenAlexW1823041286

What OpenQuestion holds

Textmetadata
LicenceTDM
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.