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| Home > Publications database > Fluorescence In Situ Hybridization (FISH) Detection of Viral Nucleic Acids in Oncolytic H-1 Parvovirus-Treated Human Brain Tumors. |
| Home > Publications database > Fluorescence In Situ Hybridization (FISH) Detection of Viral Nucleic Acids in Oncolytic H-1 Parvovirus-Treated Human Brain Tumors. |
| Book/Journal Article | DKFZ-2019-02180 |
; ; ; ;
2020
[Springer]
[Heidelberg]
ISBN: 978-1-4939-9793-0 (print), 978-1-4939-9794-7 (electronic)
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Please use a persistent id in citations: doi:10.1007/978-1-4939-9794-7_20
Abstract: Fluorescence in situ hybridization (FISH) is a specific, sensitive, accurate, and reliable technique widely applied in both research and clinic. Here we describe the detailed protocol of a FISH method established by us to serve the scientific purposes of the first oncolytic parvovirus clinical trial (ParvOryx01). This trial was launched in Germany in 2011. After trial completion in 2015, results were published in Molecular Therapy in 2017. The primary purpose of the trial was to evaluate the safety of an oncolytic parvovirus, H-1PV (ParvOryx), in recurrent glioblastoma patients. In addition, the efficiency of H-1PV tumor targeting after intratumoral or systemic virus administration was assessed by FISH detection of viral nucleic acids (genomic single-stranded DNA, mRNA and parvovirus double-stranded replicative forms) in formalin-fixed paraffin-embedded glioblastoma tissues resected at day 10 after ParvOryx treatment. The FISH method allowed the detection-for the first time in humans-of H-1PV replication markers in brain tumors of parvovirus-treated patients. A protocol combining mRNA FISH with simultaneous immunofluorescent staining for tumor and tumor microenvironment markers was also developed and is described here, in order to better characterize H-1PV cellular targets and H-1PV treatment-associated tumor microenvironment changes.
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