Evidence map›Paper›PMID 26345383›Full record

ArticleStem cell research & therapy2015

Assessment of bystander killing-mediated therapy of malignant brain tumors using a multimodal imaging approach.

Cindy Leten, Jesse Trekker, Tom Struys, Tom Dresselaers, Rik Gijsbers, Greetje Vande Velde, Ivo Lambrichts, Annemie Van Der Linden, Catherine M Verfaillie, Uwe Himmelreich

Open access · goldAbstract read
In one paragraph

Article in Stem cell research & therapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.5field-weighted citation impact, top 16% 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

6 citing papers in PubMed, 14 citations in OpenAlex.

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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

10 authors at 3 institutions in 1 country.

Cindy LetenBiomedical MRI, Department of Imaging and Pathology, KU Leuven, 3000, Leuven, Belgium. cindy.leten@gmail.com.
Jesse TrekkerBiomedical MRI, Department of Imaging and Pathology, KU Leuven, 3000, Leuven, Belgium. trekker@imec.be.
Tom StruysBiomedical MRI, Department of Imaging and Pathology, KU Leuven, 3000, Leuven, Belgium. tom.struys@uhasselt.be.
Tom DresselaersBiomedical MRI, Department of Imaging and Pathology, KU Leuven, 3000, Leuven, Belgium. tom.dresselaers@uzleuven.be.
Rik GijsbersLaboratory for Molecular Virology and Gene therapy, KU Leuven, 3000, Leuven, Belgium. Rik.Gijsbers@med.kuleuven.be.
Greetje Vande VeldeBiomedical MRI, Department of Imaging and Pathology, KU Leuven, 3000, Leuven, Belgium. Greetje.VandeVelde@med.kuleuven.be.
Ivo LambrichtsBiomedical Research Institute, Lab of Histology, Hasselt University, 3500, Hasselt, Belgium. ivo.lambrichts@uhasselt.be.
Annemie Van Der LindenBioImaging Laboratory, University of Antwerp, Campus Drie Eiken, 2610, Antwerpen, Belgium. Annemie.VanDerLinden@ua.ac.be.
Catherine M VerfaillieDepartment of Development and Regeneration, Stem Cell Institute, KU Leuven, 3000, Leuven, Belgium. Catherine.Verfaillie@med.kuleuven.be.
Uwe HimmelreichBiomedical MRI, Department of Imaging and Pathology, KU Leuven, 3000, Leuven, Belgium. Uwe.Himmelreich@med.kuleuven.be.
KU Leuven · BEHasselt University · BEUniversity of Antwerp · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn this study, we planned to assess if adult stem cell-based suicide gene therapy can efficiently eliminate glioblastoma cells in vivo. We investigated the therapeutic potential of mouse Oct4(-) bone marrow multipotent adult progenitor cells (mOct4(-) BM-MAPCs) in a mouse glioblastoma model, guided by multimodal in vivo imaging methods to identify therapeutic windows.

methodsMagnetic resonance imaging (MRI) of animals, wherein 5 × 10(5) syngeneic enhanced green fluorescent protein-firefly luciferase-herpes simplex virus thymidine kinase (eGFP-fLuc-HSV-TK) expressing and superparamagnetic iron oxide nanoparticle labeled (1 % or 10 %) mOct4(-) BM-MAPCs were grafted in glioblastoma (GL261)-bearing animals, showed that labeled mOct4(-) BM-MAPCs were located in and in close proximity to the tumor. Subsequently, ganciclovir (GCV) treatment was commenced and the fate of both the MAPCs and the tumor were followed by multimodal imaging (MRI and bioluminescence imaging).

resultsIn the majority of GCV-treated, but not phosphate-buffered saline-treated animals, a significant difference was found in mOct4(-) BM-MAPC viability and tumor size at the end of treatment. Noteworthy, in some phosphate-buffered saline-treated animals (33 %), a significant decrease in tumor size was seen compared to sham-operated animals, which could potentially also be caused by a synergistic effect of the immune-modulatory stem cells.

conclusionsSuicide gene therapy using mOct4(-) BM-MAPCs as cellular carriers was effective in reducing the tumor size in the majority of the GCV-treated animals leading to a longer progression-free survival compared to sham-operated animals. This treatment could be followed and guided noninvasively in vivo by MRI and bioluminescence imaging. Noninvasive imaging is of particular interest for a rapid and efficient validation of stem cell-based therapeutic approaches for glioblastoma and hereby contributes to a better understanding and optimization of a promising therapeutic approach for glioblastoma patients.

Indexed as

Bystander EffectGenetic TherapyAnimalsCells, CulturedGlioblastomaMiceOctamer Transcription Factor-3Pluripotent Stem CellsOctamer Transcription Factor-3Pou5f1 protein, mouse

Identifiers

PMID26345383
PMCPMC4562202
OpenAlexW1758113392

What OpenQuestion holds

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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.