Non-invasive detection of apoptosis using magnetic resonance imaging and a targeted contrast agent.
Nat Med
; 7(11): 1241-4, 2001 Nov.
Article
em En
| MEDLINE
| ID: mdl-11689890
ABSTRACT
The C2 domain of synaptotagmin I, which binds to anionic phospholipids in cell membranes, was shown to bind to the plasma membrane of apoptotic cells by both flow cytometry and confocal microscopy. Conjugation of the protein to superparamagnetic iron oxide nanoparticles allowed detection of this binding using magnetic resonance imaging. Detection of apoptotic cells, using this novel contrast agent, was demonstrated both in vitro, with isolated apoptotic tumor cells, and in vivo, in a tumor treated with chemotherapeutic drugs.
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Base de dados:
MEDLINE
Assunto principal:
Proteínas de Ligação ao Cálcio
/
Imageamento por Ressonância Magnética
/
Apoptose
Idioma:
En
Ano de publicação:
2001
Tipo de documento:
Article