Preparation, In Vitro Affinity, and In Vivo Biodistribution of Receptor-Specific 68Ga-Labeled Peptides Targeting Vascular Endothelial Growth Factor Receptors

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15110%2F22%3A73614862" target="_blank" >RIV/61989592:15110/22:73614862 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11160/22:10448477
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acs.bioconjchem.2c00272" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.bioconjchem.2c00272</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.bioconjchem.2c00272" target="_blank" >10.1021/acs.bioconjchem.2c00272</a>

Result language
angličtina
Original language name
Preparation, In Vitro Affinity, and In Vivo Biodistribution of Receptor-Specific 68Ga-Labeled Peptides Targeting Vascular Endothelial Growth Factor Receptors
Original language description
As angiogenesis plays a key role in tumor growth and metastasis, the angiogenic process has attracted scientific interest as a target for diagnostic and therapeutic agents. Factors influencing angiogenesis include the vascular endothelial growth factor (VEGF) family and the two associated receptor types (VEGFR-1 and VEGFR-2). VEGFR-1/-2 detection and quantification in cancer lesions are essential for tumor process management. As a result of the advantageous pharmacokinetics and image contrast, peptides radiolabeled with PET emitters have become interesting tools for the visualization of VEGFR1/-2-positive tumors. In this study, we prepared 68Ga-labeled peptides containing 15 (peptide 1) and 23 (peptide 2) amino acids as new PET tracers for tumor angiogenic process imaging. Methods: The peptides were conjugated with NODAGA-tris(t-Bu ester) and subsequently radiolabeled with [68Ga]Ga-chloride. The prepared [68Ga]Ga-NODA-GA-peptide 1 and [68Ga]Ga-NODAGA-peptide 2 were tested for radiochemical purity and saline/plasma stability. Consequently, the binding affinity toward VEGFRs was assessed in vitro on human glioblastoma and kidney carcinoma cells.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
30230 - Other clinical medicine subjects

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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