Badar, A;
Kiru, L;
Kalber, TL;
Jathoul, A;
Straathof, K;
Årstad, E;
Lythgoe, MF;
(2015)
Fluorescence-guided development of a tricistronic vector encoding bimodal optical and nuclear genetic reporters for in vivo cellular imaging.
EJNMMI Res
, 5
, Article 18. 10.1186/s13550-015-0097-z.
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Abstract
In vivo imaging using genetic reporters is a central supporting tool in the development of cell and gene therapies affording us the ability to selectively track the therapeutic indefinitely. Previous studies have demonstrated the utility of the human norepinephrine transporter (hNET) as a positron emission tomography/single photon emission computed tomography (PET/SPECT) genetic reporter for in vivo cellular imaging. Here, our aim was to extend on this work and construct a tricistronic vector with dual optical (firefly luciferase) and nuclear (hNET) in vivo imaging and ex vivo histochemical capabilities. Guiding this development, we describe how a fluorescent substrate for hNET, 4-(4-(dimethylamino)styryl)-N-methylpyridinium (ASP(+)), can be used to optimise vector design and serve as an in vitro functional screen.
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