Evidence map›Paper›PMID 26929139›Full record

ArticleContrast media & molecular imaging2016

Evaluating the effectiveness of transferrin receptor-1 (TfR1) as a magnetic resonance reporter gene.

Sofia M Pereira, Anne Herrmann, Diana Moss, Harish Poptani, Steve R Williams, Patricia Murray, Arthur Taylor

Open access · hybridAbstract read
In one paragraph

Article in Contrast media & molecular imaging, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

20 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Frontiers in molecular biosciences · 2021
    Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. BioMed research international · 2018
    Article
  16. Review
  17. Review
  18. MRI Reporter Genes for Noninvasive Molecular Imaging.Molecules (Basel, Switzerland) · 2016
    Review
  19. Article
  20. 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

7 authors at 2 institutions in 1 country.

Sofia M PereiraInstitute of Translational Medicine, University of Liverpool, Liverpool, UK.
Anne HerrmannInstitute of Integrative Biology, University of Liverpool, Liverpool, UK.
Diana MossInstitute of Translational Medicine, University of Liverpool, Liverpool, UK.
Harish PoptaniInstitute of Translational Medicine, University of Liverpool, Liverpool, UK.
Steve R WilliamsCentre for Imaging Sciences, Oxford Road, University of Manchester, Manchester, UK.
Patricia MurrayInstitute of Translational Medicine, University of Liverpool, Liverpool, UK.
Arthur TaylorInstitute of Translational Medicine, University of Liverpool, Liverpool, UK.
University of Liverpool · GBUniversity of Manchester · GB

Funding

Biotechnology and Biological Sciences Research Council BB/F011350/1Medical Research Council MR/K026739/1Medical Research Council MR/L012707/1Medical Research Council MR/M026256/1
6 · The paper itself

Abstract

Magnetic resonance (MR) reporter genes have the potential for tracking the biodistribution and fate of cells in vivo, thus allowing the safety, efficacy and mechanisms of action of cell-based therapies to be comprehensively assessed. In this study, we evaluate the effectiveness of the iron importer transferrin receptor-1 (TfR1) as an MR reporter gene in the model cell line CHO-K1. Overexpression of the TfR1 transgene led to a reduction in the levels of endogenous TfR1 mRNA, but to a 60-fold increase in total TfR1 protein levels. Although the mRNA levels of ferritin heavy chain-1 (Fth1) did not change, Fth1 protein levels increased 13-fold. The concentration of intracellular iron increased significantly, even when cells were cultured in medium that was not supplemented with iron and the amount of iron in the extracellular environment was thus at physiological levels. However, we found that, by supplementing the cell culture medium with ferric citrate, a comparable degree of iron uptake and MR contrast could be achieved in control cells that did not express the TfR1 transgene. Sufficient MR contrast to enable the cells to be detected in vivo following their administration into the midbrain of chick embryos was obtained irrespective of the reporter gene. We conclude that TfR1 is not an effective reporter and that, to track the biodistribution of cells with MR imaging in the short term, it is sufficient to simply culture cells in the presence of ferric citrate. Copyright © 2016 The Authors Contrast Media & Molecular Imaging Published by John Wiley & Sons Ltd.

Indexed as

Genes, ReporterAnimalsChick EmbryoCHO CellsCricetulusFerric CompoundsIronMagnetic Resonance ImagingMiceReceptors, Transferrinferric citrateFerric CompoundsIronReceptors, TransferrinTfrc protein, mousecell trackingchick embryoCHO-K1ferritinMRIreporter genetransferrin receptor

Identifiers

PMID26929139
PMCPMC4981909
OpenAlexW2290792317

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.