ArticleMolecular imaging and biology2016
In Vivo Evaluation of a Bombesin Analogue Labeled with Ga-68 and Co-55/57.
Article in Molecular imaging and biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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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.
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Who cites it
15 citing papers in PubMed, 25 citations in OpenAlex.
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- Prognostic and Theranostic Applications of Positron Emission Tomography for a Personalized Approach to Metastatic Castration-Resistant Prostate Cancer.International journal of molecular sciences · 2021Review
- Preclinical Evaluation of the Copper-64 Labeled GRPR-Antagonist RM26 in Comparison with the Cobalt-55 Labeled Counterpart for PET-Imaging of Prostate Cancer.Molecules (Basel, Switzerland) · 2020Article
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- Novel Gastrin-Releasing Peptide Receptor Targeted Near-Infrared Fluorescence Dye for Image-Guided Surgery of Prostate Cancer.Molecular imaging and biology · 2020Article
- Selection of an optimal macrocyclic chelator improves the imaging of prostate cancer using cobalt-labeled GRPR antagonist RM26.Scientific reports · 2019Article
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- Cyclotron production and radiochemical separation ofApplied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine · 2017Article
- The use of radiocobalt as a label improves imaging of EGFR using DOTA-conjugated Affibody molecule.Scientific reports · 2017Article
- High Contrast PET Imaging of GRPR Expression in Prostate Cancer Using Cobalt-Labeled Bombesin Antagonist RM26.Contrast media & molecular imaging · 2017Article
- TM1-IR680 peptide for assessment of surgical margin and lymph node metastasis in murine orthotopic model of oral cancer.Scientific reports · 2016Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe purpose of this study was to apply an analogue of bombesin, NOTA-AMBA, labeled with Co-55 or Ga-68, for preclinical imaging of prostate cancer. PROCEDURES: The peptide NOTA-AMBA was labeled with Ga-68 or Co-55 by microwave irradiation. Biodistribution in xenograft mice (PC3) was performed at 1, 4, and 24 h (only cobalt at 24 h) using a fixed amount of peptide. Four weeks post-inoculation, xenograft mice were positron emission tomography/X-ray computed tomography scanned after tail vein injection of [(68)Ga]NOTA-AMBA or [(55)Co]NOTA-AMBA.
resultsLabeling with Ga-68 and Co-55/57 was achieved in yields greater than 90 %. A radiochemical purity (RCP) of 95 and 90 % were obtained for Ga-68 and Co-55, respectively. Both radiopeptides showed high uptake in the intestines, stomach, pancreas, and in the tumor ([(68)Ga]NOTA-AMBA, 10.3 %ID/g at 1 h to 6.4 %ID/g at 4 h; [(57)Co]NOTA-AMBA, 8.2 %ID/g at 1 h to 5.3%ID/g at 24 h). Normal tissue cleared over time improving tumor-to-background ratios.
conclusionsNOTA-AMBA was labeled in high yields and RCP with Ga-68 and Co-55/57. High tumor uptake in a subcutaneous mouse prostate cancer model was observed. At 24 h, [(55/57)Co]NOTA-AMBA showed better tumor-to-organ ratios than [(68)Ga]NOTA-AMBA at both 1 and 4 h post-injection. Hence, for imaging, [(55)Co]NOTA-AMBA was found to be superior compared to [(68)Ga]NOTA-AMBA.
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