Evidence map›Paper›PMID 21732165›Full record

ArticleMolecular imaging and biology2012

Preclinical evaluation of radiolabeled DOTA-derivatized cyclic minigastrin analogs for targeting cholecystokinin receptor expressing malignancies.

Elisabeth von Guggenberg, Christine Rangger, Jane Sosabowski, Peter Laverman, Jean-Claude Reubi, Irene Johanna Virgolini, Clemens Decristoforo

Abstract read
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In one paragraph

Article in Molecular imaging and biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

15 citing papers in PubMed, 31 citations in OpenAlex.

  1. Effect ofPharmaceutics · 2023
    Article
  2. Improved Radiolytic Stability of aPharmaceuticals (Basel, Switzerland) · 2021
    Article
  3. Review
  4. DOTA-MGS5, a New Cholecystokinin-2 Receptor-Targeting Peptide Analog with an Optimized Targeting Profile for Theranostic Use.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2019
    Article
  5. Medullary Thyroid Carcinoma: An Update on Imaging.Journal of thyroid research · 2019
    Review
  6. Article
  7. Article
  8. Complexes of gastrin with InJournal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2017
    Article
  9. Molecular pharmaceutics · 2017
    Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Gastrin receptor pharmacology.Current gastroenterology reports · 2012
    Article
  15. Radiolabelled peptides for oncological diagnosis.European journal of nuclear medicine and molecular imaging · 2012
    Review
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 4 institutions in 4 countries.

Elisabeth von GuggenbergDepartment of Nuclear Medicine, Innsbruck Medical University, Anichstrasse 35, 6020, Innsbruck, Austria. elisabeth.vonguggenberg@uki.at
Christine Rangger
Jane Sosabowski
Peter Laverman
Jean-Claude Reubi
Irene Johanna Virgolini
Clemens Decristoforo
Innsbruck Medical University · ATQueen Mary University of London · GBRadboud University Nijmegen · NLUniversity of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTargeting of cholecystokinin receptor expressing malignancies such as medullary thyroid carcinoma is currently limited by low in vivo stability of radioligands. To increase the stability, we have developed and preclinically evaluated two cyclic 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA)-minigastrin analogs radiolabeled with (111)In and (68)Ga. PROCEDURES: Radiolabeling efficiency, in vitro characterization, cholecystokinin receptor subtype 2 (CCK-2) binding in human tumor tissues, and cell internalization on CCK-2 receptor expressing AR42J cells, as well as biodistribution and small animal imaging in two different mouse xenograft models were studied.

resultsHigh receptor affinity and receptor-mediated uptake of the radioligands in AR42J cells was confirmed in vitro. (111)In-labeled cyclic DOTA-peptides showed a specific tumor uptake of ~1% ID/g in vivo, (68)Ga-labeled analogs of ~3% ID/g. Small animal SPECT imaging resulted to be superior with (111)In-DOTA-cyclo-MG2 in comparison with (111)In-DOTA-cyclo-MG1.

conclusionsCyclic DOTA-minigastrin analogs are promising candidates for gastrin receptor scintigraphy and targeted radionuclide therapy.

Indexed as

AnimalsCarcinoma, NeuroendocrineCell Line, TumorDrug Evaluation, PreclinicalFemaleGallium RadioisotopesGastrinsHeterocyclic Compounds, 1-RingIndium RadioisotopesMiceMice, Inbred BALB CMice, NudeMice, SCIDReceptors, CholecystokininThyroid NeoplasmsTomography, Emission-Computed, Single-Photon1,4,7,10-tetraazacyclododecane- 1,4,7,10-tetraacetic acidGallium RadioisotopesGastrinsHeterocyclic Compounds, 1-RingIndium RadioisotopesminigastrinReceptors, Cholecystokinin

Identifiers

PMID21732165
OpenAlexW2322685957

What OpenQuestion holds

Textmetadata
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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.