A novel off-on fluorescent probe for sensitive imaging of mitochondria-specific nitroreductase activity in living tumor cells.
Org Biomol Chem
; 15(20): 4383-4389, 2017 May 28.
Article
em En
| MEDLINE
| ID: mdl-28475190
ABSTRACT
Sensitive and selective detection and imaging of nitroreductase (NTR) in cancer cells is of great importance for better understanding their biological functions. Since there are a few fluorescent probes concerning NTR activity specifically located in mitochondria, we developed a novel fluorescent benzoindocyanine probe (BICP) for mitochondrial NTR activity monitoring and imaging via extending a benzoindole moiety into a benzoindocyanine based fluorophore (BICF) with a strong intramolecular charge transfer (ICT) effect and incorporating 4-nitrobenzyl as a fluorescence-quenching and enzyme-responsive moiety. Live cell imaging of HeLa and A549 demonstrates that the developed BICP is able to realize sensitive and selective mitochondrial NTR activity probing with high-contrast "off-on" fluorescence. These findings implied the great potential of the developed probe for monitoring mitochondrial-specific NTR activities in living cells and related applications in cell biology.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Nitrorredutases
/
Imagem Molecular
/
Corantes Fluorescentes
/
Verde de Indocianina
/
Mitocôndrias
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article