Evidence map›Paper›PMID 26762341›Full record

ArticleBMC medical imaging2016

The use of matrigel has no influence on tumor development or PET imaging in FaDu human head and neck cancer xenografts.

Frederikke P Fliedner, Anders E Hansen, Jesper T Jørgensen, Andreas Kjær

Open access · goldAbstract read
In one paragraph

Article in BMC medical imaging, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.8field-weighted citation impact, top 25% 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

9 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Review
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  5. Subcutaneous Xenograft Models for Studying PDT In Vivo.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  6. Article
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  8. Review
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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

4 authors at 2 institutions in 1 country.

Frederikke P FliednerDepartment of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark. frederikkepf@sund.ku.dk.
Anders E HansenDepartment of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark. aeha@sund.ku.dk.
Jesper T JørgensenDepartment of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark. jtran@sund.ku.dk.
Andreas KjærDepartment of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark. akjaer@sund.ku.dk.
Rigshospitalet · DKUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn preclinical research Matrixgel(TM) Basement Membrane Matrix (MG) is used frequently for the establishment of syngeneic and xenograft cancer models. Limited information on its influence on parameters including; tumor growth, vascularization, hypoxia and imaging characteristics is currently available. This study evaluates the potential effect of matrigel use in a human head and neck cancer xenograft model (FaDu; hypopharyngeal carcinoma) in NMRI nude mice. The FaDu cell line was chosen based on its frequent use in studies of cancer imaging and tumor microenvironment.

methodsNMRI nude mice (n = 34) were divided into two groups and subcutaneously injected with FaDu cells in medium either including (+MG) or excluding matrigel (-MG). In sub study I seven mice from each group (+MG, n = 7; -MG, n = 7) were (18)F- fluorodeoxyglucose ((18)F-FDG) PET/CT scanned on Day 5, 8, 12, 15, and 19. In sub study II ten mice from each group (+MG, n = 10; -MG, n = 10) were included and tumors collected for immunohistochemistry (IHC) analysis of tumor microenvironment including; proliferation ratio, micro vessel density, average vessel area, hypoxia, nuclear density, and necrosis. Tumors for IHC were collected according to size (200-400 mm(3), 500-700 mm(3), 800-1100 mm(3)).

resultsFDG uptake and tumor growth was statistically compatible for the tumors established with or without MG. The IHC analysis on all parameters only identified a significantly higher micro vessel density for tumor size 500-700 mm(3) and 800-1100 mm(3) and average vessel area for tumor size 500-700 mm(3) in the -MG group. Comparable variations were observed for tumors of both the +MG and -MG groups. No difference in tumor take rate was observed between groups in study.

conclusionsMatrigel did not affect tumor growth or tumor take for the FaDu xenograft model evaluated. Tumors in the -MG group displayed increased angiogenesis compared to the +MG tumors. No difference in (18)F-FDG PET uptake for tumors of different groups was found. Based on these observations the influence of matrigel on tumor imaging and tumor microenvironment seems minor for this particular xenograft model.

Indexed as

AnimalsBiocompatible MaterialsCell Line, TumorCollagenDrug CombinationsFluorodeoxyglucose F18Head and Neck NeoplasmsHumansLamininMiceMice, NudeNeoplasm TransplantationPositron-Emission TomographyProteoglycansRadiographyTumor BurdenBiocompatible MaterialsCollagenDrug CombinationsFluorodeoxyglucose F18LamininmatrigelProteoglycans

Identifiers

PMID26762341
PMCPMC4712613
OpenAlexW2236357836

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.