Evidence map›Paper›PMID 25476021›Full record

ArticleBMC cell biology2014

A thin layer angiogenesis assay: a modified basement matrix assay for assessment of endothelial cell differentiation.

Ashton Faulkner, Robert Purcell, Andrew Hibbert, Sally Latham, Scott Thomson, Wendy L Hall, Caroline Wheeler-Jones, David Bishop-Bailey

Open access · goldAbstract readValidation Study
In one paragraph

Article in BMC cell biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.0field-weighted citation impact, top 26% 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

17 citing papers in PubMed, 29 citations in OpenAlex.

  1. 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

8 authors at 2 institutions in 1 country.

Ashton FaulknerComparative Biomedical Sciences, Royal Veterinary College, University of London Royal College Street, London, NW1 0TU, UK. afaulkner@rvc.ac.uk.
Robert PurcellComparative Biomedical Sciences, Royal Veterinary College, University of London Royal College Street, London, NW1 0TU, UK. rpurcell@rvc.ac.uk.
Andrew HibbertComparative Biomedical Sciences, Royal Veterinary College, University of London Royal College Street, London, NW1 0TU, UK. ahibbert@rvc.ac.uk.
Sally LathamComparative Biomedical Sciences, Royal Veterinary College, University of London Royal College Street, London, NW1 0TU, UK. slatham@rvc.ac.uk.
Scott ThomsonComparative Biomedical Sciences, Royal Veterinary College, University of London Royal College Street, London, NW1 0TU, UK. sthomson@rvc.ac.uk.
Wendy L HallDiabetes and Nutritional Sciences Division, School of Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK. wendy.hall@kcl.ac.uk.
Caroline Wheeler-JonesComparative Biomedical Sciences, Royal Veterinary College, University of London Royal College Street, London, NW1 0TU, UK. cwheeler@rvc.ac.uk.
David Bishop-BaileyComparative Biomedical Sciences, Royal Veterinary College, University of London Royal College Street, London, NW1 0TU, UK. dbishopbailey@rvc.ac.uk.
Royal Veterinary College · GBKing's College London · GB

Funding

Biotechnology and Biological Sciences Research Council BB/I005862/1Biotechnology and Biological Sciences Research Council BB/J50015X/1British Heart Foundation PG/11/39/28890
6 · The paper itself

Abstract

backgroundBasement matrices such as Matrigel™ and Geltrex™ are used in a variety of cell culture assays of anchorage-dependent differentiation including endothelial cell tube formation assays. The volumes of matrix recommended for these assays (approximately 150 μl/cm(2)) are costly, limit working distances for microscopy, and require cell detachment for subsequent molecular analysis. Here we describe the development and validation of a thin-layer angiogenesis (TLA) assay for assessing the angiogenic potential of endothelial cells that overcomes these limitations.

resultsGeltrex™ basement matrix at 5 μl/cm(2) in 24-well (10 μl) or 96-well (2 μl) plates supports endothelial cell differentiation into tube-like structures in a comparable manner to the standard larger volumes of matrix. Since working distances are reduced, high-resolution single cell microscopy, including DIC and confocal imaging, can be used readily. Using MitoTracker dye we now demonstrate, for the first time, live mitochondrial dynamics and visualise the 3-dimensional network of mitochondria present in differentiated endothelial cells. Using a standard commercial total RNA extraction kit (Qiagen) we also show direct RNA extraction and RT-qPCR from differentiated endothelial cells without the need to initially detach cells from their supporting matrix.

conclusionsWe present here a new thin-layer assay (TLA) for measuring the anchorage-dependent differentiation of endothelial cells into tube-like structures which retains all the characteristics of the traditional approach but with the added benefit of a greatly lowered cost and better compatibility with other techniques, including RT-qPCR and high-resolution microscopy.

Indexed as

Neovascularization, PhysiologicCell DifferentiationCells, CulturedCytological TechniquesEndothelial CellsExtracellular Matrix ProteinsHumansHuman Umbilical Vein Endothelial CellsMitochondriaExtracellular Matrix Proteins

Identifiers

PMID25476021
PMCPMC4263020
OpenAlexW1981591611

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.