Doxycycline Inducible Melanogenic Vaccinia Virus as Theranostic Anti-Cancer Agent

We reported earlier the diagnostic potential of a melanogenic vaccinia virus based system in magnetic resonance (MRI) and optoacoustic deep tissue imaging (MSOT). Since melanin overproduction lead to attenuated virus replication, we constructed a novel recombinant vaccinia virus strain (rVACV), GLV-...

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Detalles Bibliográficos
Autores principales: Kirscher, Lorenz, Deán-Ben, Xosé Luis, Scadeng, Miriam, Zaremba, Angelika, Zhang, Qian, Kober, Christina, Fehm, Thomas Felix, Razansky, Daniel, Ntziachristos, Vasilis, Stritzker, Jochen, Szalay, Aladar A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Ivyspring International Publisher 2015
Materias:
Research Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4508495/
https://www.ncbi.nlm.nih.gov/pubmed/26199644
http://dx.doi.org/10.7150/thno.12533
Descripción
Sumario:We reported earlier the diagnostic potential of a melanogenic vaccinia virus based system in magnetic resonance (MRI) and optoacoustic deep tissue imaging (MSOT). Since melanin overproduction lead to attenuated virus replication, we constructed a novel recombinant vaccinia virus strain (rVACV), GLV-1h462, which expressed the key enzyme of melanogenesis (tyrosinase) under the control of an inducible promoter-system. In this study melanin production was detected after exogenous addition of doxycycline in two different tumor xenograft mouse models. Furthermore, it was confirmed that this novel vaccinia virus strain still facilitated signal enhancement as detected by MRI and optoacoustic tomography. At the same time we demonstrated an enhanced oncolytic potential compared to the constitutively melanin synthesizing rVACV system.

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