Viruses versus cancer. Who’s your money on?
With [oncolytic viruses] OV cancer therapeutics entering advanced-stage trials and showing clinical efficacy, strategies that further broaden OV targeting and replication capacity to address the heterogeneous nature of tumours and their associated vascular and stromal architecture will be extremely useful. Since such heterogeneity not only exists between patients but also within a given tumour/patient, where the metabolism, signal transduction, and antiviral states of cancer cells can be variably abnormal and, therefore, variably support OV replication, combinatorial strategies will be essential to promoting reliable tumour control and regression. Finally, continued efforts to identify components innate to the complex tumour microenvironment that promote OV replication will be critical to further improving OVs and developing new engineering strategies.
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