A brief review of reporter gene imaging in oncolytic virotherapy and gene therapy

Published on Jun 25, 2021in Molecular Therapy - Oncolytics4.115
· DOI :10.1016/J.OMTO.2021.03.006
Susanna C. Concilio2
Estimated H-index: 2
(Mayo Clinic),
Stephen J. Russell110
Estimated H-index: 110
(Mayo Clinic),
Kah Whye Peng54
Estimated H-index: 54
(Mayo Clinic)
Sources
Abstract
Abstract Reporter gene imaging can accelerate development timelines for gene and viral therapies by facilitating rapid and noninvasive in vivo studies to determine the biodistribution, magnitude and durability of viral gene expression and/or virus infection. Functional molecular imaging systems used for this purpose can be divided broadly into deep-tissue and optical modalities. Deep-tissue modalities, which can be used in animals of any size as well as in human subjects, encompass single photon emission computed tomography (SPECT), positron emission tomography (PET), and functional/molecular magnetic resonance imaging (f/mMRI). Optical modalities encompass fluorescence, bioluminescence, Cerenkov luminescence, and photoacoustic imaging and are suitable only for small animal imaging. Here we discuss the mechanisms of action and relative merits of currently available reporter gene systems highlighting the strengths and weaknesses of deep tissue versus optical imaging systems and the hardware/reagents that are used for data capture and processing. In light of recent technological advances, falling costs of imaging instruments, better availability of novel radioactive and optical tracers, and a growing realization that reporter gene imaging can give invaluable insights across the entire in vivo translational spectrum, the approach is becoming increasingly essential to facilitate the competitive development of new virus and gene based drugs.
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