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Lebedev AY, Holland JP, Lewis JS. Clickable bifunctional radiometal chelates for peptide labeling. Chem Commun (Camb) 2010; 46:1706-8. [PMID: 20177623 DOI: 10.1039/b924784j] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel synthetic methods for producing an array of chelates for use in "click"-radiolabeling of peptides are described, and their reactivity with regards to subsequent conjugation and radiolabeling is discussed.
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Affiliation(s)
- Artem Y Lebedev
- Radiochemistry Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA
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52
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Bazzicalupi C, Bencini A, Ciattini S, Denat F, Désogère P, Goze C, Matera I, Valtancoli B. Proton and metal binding by cyclen-based highly rigid cryptands. Dalton Trans 2010; 39:11643-53. [DOI: 10.1039/c0dt00948b] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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53
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Liu W, Hao G, Long MA, Anthony T, Hsieh JT, Sun X. Imparting multivalency to a bifunctional chelator: a scaffold design for targeted PET imaging probes. Angew Chem Int Ed Engl 2009; 48:7346-9. [PMID: 19725090 DOI: 10.1002/anie.200903556] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wei Liu
- Department of Radiology and Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, TX 75390-8542, USA
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54
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Liu W, Hao G, Long M, Anthony T, Hsieh JT, Sun X. Imparting Multivalency to a Bifunctional Chelator: A Scaffold Design for Targeted PET Imaging Probes. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200903556] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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55
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Svobodová I, Havlíčková J, Plutnar J, Lubal P, Kotek J, Hermann P. Metal Complexes of 4,11-Dimethyl-1,4,8,11-tetraazacyclotetradecane-1,8-bis(methylphosphonic acid) - Thermodynamic and Formation/Decomplexation Kinetic Studies. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900358] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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56
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Hausner SH, Kukis DL, Gagnon MKJ, Stanecki CE, Ferdani R, Marshall JF, Anderson CJ, Sutcliffe JL. Evaluation of [64Cu]Cu-DOTA and [64Cu]Cu-CB-TE2A chelates for targeted positron emission tomography with an alphavbeta6-specific peptide. Mol Imaging 2009; 8:111-121. [PMID: 19397856 PMCID: PMC4287215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
Significant upregulation of the integrin alpha(v)beta(6) has been described as a prognostic indicator in several cancers, making it an attractive target for tumor imaging. This study compares variants of a PEGylated alpha(v)beta(6)-targeting peptide, bearing either an [(18)F]fluorobenzoyl prosthetic group ([(18)F]FBA-PEG-A20FMDV2) or different [(64)Cu]copper chelators (DOTA-PEG-A20FMDV2, CB-TE2A-PEG-A20FMDV2). The compounds were evaluated in vitro by enzyme-linked immunosorbent assay (against the integrin alpha(v)beta(6) and the closely related integrin alpha(v)beta(3)) and by cell labeling (alpha(v)beta(6)-positive DX3purobeta6/alpha(v)beta(6)-negative DX3puro) and in vivo using micro-positron emission tomography in a mouse model bearing paired DX3purobeta6/Dx3puro xenografts. In vitro, all three compounds showed excellent alpha(v)beta(6)-specific binding (50% inhibitory concentration [IC(50)](alpha(v)beta(6)) = 3 to 6 nmol/L; IC(50)(alpha(v)beta(3)) > 10 micromol/L). In vivo, they displayed comparable, preferential uptake for the alpha(v)beta(6)-expressing xenograft over the alpha(v)beta(6)-negative control (> 4:1 ratio at 4 hours postinjection). Whereas [(64)Cu]Cu-DOTA-PEG-A20FMDV2 resulted in increased levels of radioactivity in the liver, [(64)Cu]Cu-CB-TE2A-PEG-A20FMDV2 did not. Significantly, both (64)Cu-labeled tracers showed unexpectedly high and persistent levels of radioactivity in the kidneys (> 40% injected dose/g at 4 and 12 hours postinjection). The findings underscore the potential influence of the prosthetic group on targeted in vivo imaging of clinically relevant markers such as alpha(v)beta(6). Despite identical targeting peptide moiety and largely equal in vitro behavior, both (64)Cu-labeled tracers displayed inferior pharmacokinetics, making them in their present form less suitable candidates than the (18)F-labeled tracer for in vivo imaging of alpha(v)beta(6).
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Affiliation(s)
- Sven H Hausner
- Department of Biomedical Engineering and Center for Molecular and Genomic Imaging, University of California, Davis, Davis, CA 95616, USA
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57
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Hausner SH, Kukis DL, Gagnon MKJ, Stanecki CE, Ferdani R, Marshall JF, Anderson CJ, Sutcliffe JL. Evaluation of [
64
Cu]Cu-DOTA and [
64
Cu]Cu-CB-TE2A Chelates for Targeted Positron Emission Tomography with an α
v
β
6
-Specific Peptide. Mol Imaging 2009. [DOI: 10.2310/7290.2009.00015] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Sven H. Hausner
- From the Department of Biomedical Engineering and Center for Molecular and Genomic Imaging, University of California, Davis, Davis, CA; Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO; and Tumour Biology Centre, Barts and London Medical School, London, UK
| | - David L. Kukis
- From the Department of Biomedical Engineering and Center for Molecular and Genomic Imaging, University of California, Davis, Davis, CA; Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO; and Tumour Biology Centre, Barts and London Medical School, London, UK
| | - M. Karen J. Gagnon
- From the Department of Biomedical Engineering and Center for Molecular and Genomic Imaging, University of California, Davis, Davis, CA; Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO; and Tumour Biology Centre, Barts and London Medical School, London, UK
| | - Catherine E. Stanecki
- From the Department of Biomedical Engineering and Center for Molecular and Genomic Imaging, University of California, Davis, Davis, CA; Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO; and Tumour Biology Centre, Barts and London Medical School, London, UK
| | - Riccardo Ferdani
- From the Department of Biomedical Engineering and Center for Molecular and Genomic Imaging, University of California, Davis, Davis, CA; Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO; and Tumour Biology Centre, Barts and London Medical School, London, UK
| | - John F. Marshall
- From the Department of Biomedical Engineering and Center for Molecular and Genomic Imaging, University of California, Davis, Davis, CA; Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO; and Tumour Biology Centre, Barts and London Medical School, London, UK
| | - Carolyn J. Anderson
- From the Department of Biomedical Engineering and Center for Molecular and Genomic Imaging, University of California, Davis, Davis, CA; Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO; and Tumour Biology Centre, Barts and London Medical School, London, UK
| | - Julie L. Sutcliffe
- From the Department of Biomedical Engineering and Center for Molecular and Genomic Imaging, University of California, Davis, Davis, CA; Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO; and Tumour Biology Centre, Barts and London Medical School, London, UK
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