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Updated: May 23, 2026

Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
Published on: January 7, 2019
Theranostic potential of oncolytic vaccinia virus
1Department of Surgery, University of Pittsburgh Cancer Institute, University of Pittsburgh, Pittsburgh, PA, USA.
Abstract:
Biological cancer therapies, such as oncolytic, or replication-selective viruses have advantages over traditional therapeutics as they can employ multiple different mechanisms to target and destroy cancers (including direct cell lysis, immune activation and vascular collapse). This has led to their rapid recent clinical development. However this also makes their pre-clinical and clinical study complex, as many parameters may affect their therapeutic potential and so defining reason for treatment failure or approaches that might enhance their therapeutic activity can be complicated. The ability to non-invasively image viral gene expression in vivo both in pre-clinical models and during clinical testing will considerably enhance the speed of oncolytic virus development as well as increasing the level and type of useful data produced from these studies. Further, subsequent to future clinical approval, imaging of reporter gene expression might be used to evaluate the likelihood of response to oncolytic viral therapy prior to changes in tumor burden. Here different reporter genes used in conjunction with oncolytic viral therapy are described, along with the imaging modalities used to measure their expression, while their applications both in pre-clinical and clinical testing are discussed. Possible future applications for reporter gene expression from oncolytic viruses in the phenotyping of tumors and the personalizing of treatment regimens are also discussed.
Insights
Non-invasive imaging of viral gene expression accelerates oncolytic virus development. This technology aids in understanding treatment efficacy and personalizing cancer therapies for better patient outcomes.
Area of Science:
- Oncology
- Virology
- Medical Imaging
Background:
- Biological cancer therapies, like oncolytic viruses, offer multi-mechanism advantages over traditional treatments.
- Rapid clinical development of these viruses presents complex pre-clinical and clinical study challenges.
- Defining treatment failure and enhancement strategies for oncolytic viruses is complicated by numerous parameters.
Purpose of the Study:
- To review reporter genes and imaging modalities for non-invasive in vivo imaging of viral gene expression in oncolytic virus therapy.
- To discuss applications of this imaging in pre-clinical and clinical studies of oncolytic viruses.
- To explore future uses in tumor phenotyping and personalized treatment regimens.
Main Methods:
- Review of various reporter genes used with oncolytic viruses.
- Description of imaging modalities for measuring reporter gene expression.
- Discussion of applications in pre-clinical and clinical settings.
Main Results:
- Non-invasive imaging of viral gene expression significantly enhances oncolytic virus development speed and data quality.
- Imaging can potentially predict response to oncolytic viral therapy before changes in tumor burden.
- Reporter gene expression holds promise for tumor phenotyping and personalized treatment.
Conclusions:
- Non-invasive imaging of viral gene expression is crucial for advancing oncolytic virus therapy.
- This technology facilitates complex study designs and aids in treatment optimization.
- Future applications include personalized medicine approaches in cancer treatment.
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