Radiolabeling of cidofovir with technetium-99m and biodistribution studies

Radiolabeling cidofovir with technetium-99m (99mTc-CDV) is an innovative procedure that enables real-time monitoring of the drug. Essays were performed in vitro, showing high radiolabel stability within 24 h. Blood clearance, biodistribution studies, and scintigraphic images were performed in health...

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Detalhes bibliográficos
Autores: Arribada, Raquel Gregorio, Pereira, Nara Caroline, Cardoso, Valbert Nascimento, Cunha Júnior, Armando da Silva, Barros, André Luís Branco de
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Brasil
Recursos:Universidade de São Paulo (USP)
Repositorio:Brazilian Journal of Pharmaceutical Sciences
Idioma:inglés
OAI Identifier:oai:revistas.usp.br:article/181834
Acesso em linha:https://www.revistas.usp.br/bjps/article/view/181834
Access Level:acceso abierto
Palavra-chave:Cidofovir
Radiotracer
Technetium-99m
Biodistribution
Scintigraphic imaging
Descrição
Resumo:Radiolabeling cidofovir with technetium-99m (99mTc-CDV) is an innovative procedure that enables real-time monitoring of the drug. Essays were performed in vitro, showing high radiolabel stability within 24 h. Blood clearance, biodistribution studies, and scintigraphic images were performed in healthy mice in order to evaluate the profile of the drug in vivo. 99mTc-CDV showed biphasic blood circulation time and significant kidney uptake, indicating that 99mTc-CDV is preferentially eliminated by the renal route. Bones also showed important uptake throughout the experiment. In summary, cidofovir was successfully labeled with technetium-99m and might be used in further studies to track the drug.