Lighting a Fire in the Tumor Microenvironment Using Oncolytic Immunotherapy
Carole Achard1, Abera Surendran2, Marie-Eve Wedge3
1Centre for Innovative Cancer Research, Ottawa Hospital Research Institute, Ottawa K1H 8L6, Canada.
Abstract:
Oncolytic virus (OV) therapy is potentially a game-changing cancer treatment that has garnered significant interest due to its versatility and multi-modal approaches towards tumor eradication. In the field of cancer immunotherapy, the immunological phenotype of the tumor microenvironment (TME) is an important determinant of disease prognosis and therapeutic success. There is accumulating data that OVs are capable of dramatically altering the TME immune landscape, leading to improved antitumor activity alone or in combination with assorted immune modulators. Herein, we review how OVs disrupt the immunosuppressive TME and can be used strategically to create a "pro-immune" microenvironment that enables and promotes potent, long-lasting host antitumor immune responses.
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