Abstract
The ability to visualize plasmid DNA entrapment in muscle cells undergoing an "in vivo" electroporation treatment was investigated on BALB/c mice using a 7-T magnetic resonance imaging (MRI) scanner using the paramagnetic Gd-DOTA-spd complex as imaging reporter. Gd-DOTA-spd bears a tripositively charged spermidine residue that yields a strong binding affinity toward the negatively charged DNA chain (6.4 kb, Ka = 2.2 × 103 M-1 for approximately 2500 ± 500 binding sites). Cellular colocalization of Gd-DOTA-spd and plasmid DNA has been validated by histological analysis of excised treated muscle. In vivo MRI visualization of Gd-DOTA-spd distribution provides an excellent route to access the cellular entrapment of plasmid DNA upon applying an electroporation pulse.
Lingua originale | Inglese |
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pagine (da-a) | 7-17 |
Numero di pagine | 11 |
Rivista | Molecular Imaging |
Volume | 4 |
Numero di pubblicazione | 1 |
DOI | |
Stato di pubblicazione | Pubblicato - 2005 |
Pubblicato esternamente | Sì |