Human Serum Albumin Labelled with Sterically-Hindered Nitroxides as Potential MRI Contrast Agents.
Molecules
; 25(7)2020 Apr 08.
Article
em En
| MEDLINE
| ID: mdl-32276437
ABSTRACT
Four albumin-nitroxide conjugates were prepared and tested as metal-free organic radical contrast agents (ORCAs) for magnetic resonance imaging (MRI). Each human serum albumin (HSA) carrier bears multiple nitroxides conjugated via homocysteine thiolactones. These molecular conjugates retain important physical and biological properties of their HSA component, and the resistance of their nitroxide groups to bioreduction was retained or enhanced. The relaxivities are similar for these four conjugates and are much greater than those of their individual components the HSA or the small nitroxide molecules. This new family of conjugates has excellent prospects for optimization as ORCAs.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Coloração e Rotulagem
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Imageamento por Ressonância Magnética
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Meios de Contraste
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Albumina Sérica Humana
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Óxidos de Nitrogênio
Limite:
Humans
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article