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Oncolytic virus (OV)-based immunotherapy has emerged as a promising strategy for cancer treatment, offering a unique potential to selectively target malignant cells while sparing normal tissues. However, the immunosuppressive nature of tumor microenvironment (TME) poses a substantial hurdle to the development of OVs as effective immunotherapeutic agents, as it restricts the activation and recruitment of immune cells. This review elucidates the potential of OV-based immunotherapy in modulating the immune landscape within the TME to overcome immune resistance and enhance antitumor immune responses. We examine the role of OVs in targeting specific immune cell populations, including dendritic cells, T cells, natural killer cells, and macrophages, and their ability to alter the TME by inhibiting angiogenesis and reducing tumor fibrosis. Additionally, we explore strategies to optimize OV-based drug delivery and improve the efficiency of OV-mediated immunotherapy. In conclusion, this review offers a concise and comprehensive synopsis of the current status and future prospects of OV-based immunotherapy, underscoring its remarkable potential as an effective immunotherapeutic agent for cancer treatment.
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http://dx.doi.org/10.1007/s11684-023-1048-0 | DOI Listing |
Biochem Biophys Res Commun
September 2025
State Key Laboratory of Medicinal Chemical Biology and College of Life Science, Nankai University, Tianjin, China. Electronic address:
Oncolytic viruses (OVs) represent a promising approach for cancer immunotherapy by inducing direct tumor lysis and stimulating antitumor immunity. However, tumor-intrinsic resistance remains a major barrier to their efficacy. In this study, we established an OV-resistant MC38 colon cancer model (MC38) and identified interferon regulatory factor 7 (IRF7), a key regulator of type I interferon signaling, as significantly upregulated in resistant cells.
View Article and Find Full Text PDFFront Mol Biosci
May 2025
Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk, Saudi Arabia.
Cancer is a complex disease affecting both humans and animals. Comparative immuno-oncology explores immune responses across species to develop effective cancer therapies. Oncolytic viruses (OVs) serve as both direct tumor-lysing agents and immune stimulants, making them an attractive therapeutic option.
View Article and Find Full Text PDFMol Cancer Ther
March 2025
Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
Epithelial Ovarian Cancer (EOC) is the most lethal gynecologic cancer and those affected are in urgent need of new therapeutic strategies. Standard treatment is surgery followed by taxane- and platinum-based chemotherapy, but the rate of relapse is high and the 5-year survival is only 45%. Oncolytic viruses (OV) are a promising approach to EOC therapy through remodeling the immune composition of the tumor microenvironment (TME).
View Article and Find Full Text PDFBiomark Res
January 2025
Department of Hematology and Medical Oncology, Emory University, 201 Dowman Dr, Atlanta, GA, 30322, USA.
Background: Oncolytic viruses (OVs) are increasingly recognized as promising tools for cancer therapy, as they selectively infect and destroy tumor cells while leaving healthy cells unharmed. Despite considerable progress, the limited therapeutic efficacy of OV-based virotherapy continues to be a significant challenge in cancer treatment.
Methods: The SMAC/DIABLO gene was inserted into the genome of vesicular stomatitis virus (VSV) to generate VSV-S.
J Cancer
September 2024
Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China.
Ovarian cancer (OV) is a prevalent malignancy among gynecological tumors. Numerous metabolic pathways play a significant role in various human diseases, including malignant tumors. Our study aimed to develop a prognostic signature for OV based on a comprehensive set of metabolism-related genes (MRGs).
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