Evidence map›Paper›PMID 21892622›Full record

ArticleEuropean journal of nuclear medicine and molecular imaging2011

Quantification of receptor-ligand binding with [¹⁸F]fluciclatide in metastatic breast cancer patients.

Giampaolo Tomasi, Laura Kenny, Francesco Mauri, Federico Turkheimer, Eric O Aboagye

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In one paragraph

Article in European journal of nuclear medicine and molecular imaging, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. [European journal of nuclear medicine and molecular imaging · 2020
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  3. Article
  4. Preparation and evaluation of aAmerican journal of nuclear medicine and molecular imaging · 2018
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  5. Cardiac αHeart (British Cardiac Society) · 2017
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  6. Preclinical validations of [EJNMMI radiopharmacy and chemistry · 2017
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  7. Review
  8. Review
  9. A novel PET tracer for targeted imaging of atherosclerosis.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2015
    Article
  10. Review
  11. Radiopharmaceuticals as probes to characterize tumour tissue.European journal of nuclear medicine and molecular imaging · 2015
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Molecular imaging agents for SPECT (and SPECT/CT).European journal of nuclear medicine and molecular imaging · 2014
    Review
  17. Review
  18. Introduction to the analysis of PET data in oncology.Journal of pharmacokinetics and pharmacodynamics · 2013
    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

5 authors at 1 institution in 1 country.

Giampaolo TomasiComprehensive Cancer Imaging Center, Imperial College, Hammersmith Hospital, Du Cane Road, London W12 0NN, UK.
Laura Kenny
Francesco Mauri
Federico Turkheimer
Eric O Aboagye
Hammersmith Hospital · GB

Funding

Cancer Research UK 10337Department of Health NIHR/CS/009/009Medical Research Council MC_U120081322Medical Research Council MC_U120085814
6 · The paper itself

Abstract

purposeThe purpose of the study was to estimate the receptor-ligand binding of an arginine-glycine-aspartic acid (RGD) peptide in somatic tumours. To this aim, we employed dynamic positron emission tomography (PET) data obtained from breast cancer patients with metastases, studied with the α(v)β(3/5) integrin receptor radioligand [(18)F]fluciclatide.

methodsFirst, compartmental modelling and spectral analysis with arterial input function were performed at the region of interest (ROI) level in healthy lung and liver, and in lung and liver metastases; compartmental modelling was also carried out at the pixel level. The selection of the most appropriate indexes for tumour/healthy tissue differentiation and for estimation of specific binding was then assessed.

resultsThe two-tissue reversible model emerged as the best according to the Akaike Information Criterion. Spectral analysis confirmed the reversibility of tracer kinetics. Values of kinetic parameters, estimated as mean from parametric maps, correlated well with those computed from ROI analysis. The volume of distribution V(T) was on average higher in lung metastases than in the healthy lung, but lower in liver metastases than in the healthy liver. In agreement with the expected higher α(v)β(3/5) expression in pathology, k(3) and k(3)/k(4) were both remarkably higher in metastases, which makes them more suitable than V(T) for tumour/healthy tissue differentiation. The ratio k(3)/k(4), in particular, appeared a reasonable measure of specific binding.

conclusionBesides establishing the best quantitative approaches for the analysis of [(18)F]fluciclatide data, this study indicated that the k(3)/k(4) ratio is a reasonable measure of specific binding, suggesting that this index can be used to estimate α(v)β(3/5) receptor expression in oncology, although further studies are necessary to validate this hypothesis.

Indexed as

AdultAgedBreast NeoplasmsCarcinomaFemaleFluorine RadioisotopesHumansMiddle AgedPeptidesPolyethylene GlycolsProtein BindingProtein Interaction MappingRadiopharmaceuticalsAH 111585Fluorine RadioisotopesPeptidesPolyethylene GlycolsRadiopharmaceuticals

Identifiers

PMID21892622
OpenAlexW2027763951

What OpenQuestion holds

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Registered trials

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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.