Visualization through magnetic resonance imaging of DNA internalized following "In vivo" electroporation

Simonetta Geninatti Crich, Stefania Lanzardo, Alessandro Barge, Giovanna Esposito, Lorenzo Tei, Guido Forni, Silvio Aime

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

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 originaleInglese
pagine (da-a)7-17
Numero di pagine11
RivistaMolecular Imaging
Volume4
Numero di pubblicazione1
DOI
Stato di pubblicazionePubblicato - 2005
Pubblicato esternamente

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