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Updated: Jan 20, 2026

Ex Vivo Infection of Live Tissue with Oncolytic Viruses
Published on: June 25, 2011
Current status and research progress of oncolytic virus
Yingyu Chen1,2, Mengyuan Tao1,2, Xuwei Wu1,2
1Institute of Antibody Engineering, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, Guangdong, China.
Abstract:
Oncolytic viruses (OVs) are natural or genetically recombinant viruses that selectively infect and kill tumor cells without affecting normal cell growth. As a novel type of immunotherapy, OVs have been shown to activate antitumor immune responses, regulate the tumor microenvironment, and enhance the efficacy of immune checkpoint inhibitors. In this review article, we discuss the latest research on the characteristics, antitumor mechanisms, and status of OV research. In terms of mechanism of action, after targeting tumor cells, OVs not only directly lyse tumor cells but also exert antitumor effects through indirect approaches. As an emerging cancer treatment, OVs face challenges that need to be overcome. Finally, we summarize the challenges and prospects for the future application of OVs.
Insights
Oncolytic viruses (OVs) are novel immunotherapies that selectively kill cancer cells. This review covers their mechanisms, current status, and future challenges for cancer treatment.
Area of Science:
- Oncolytic virology
- Cancer immunotherapy
- Tumor microenvironment modulation
Background:
- Oncolytic viruses (OVs) are viruses that selectively infect and destroy tumor cells.
- OVs represent a promising avenue in cancer immunotherapy, activating anti-tumor immune responses.
- They can also regulate the tumor microenvironment and enhance other cancer therapies.
Purpose of the Study:
- To review the latest research on oncolytic viruses.
- To discuss their characteristics and antitumor mechanisms.
- To summarize the challenges and future prospects of OV applications in cancer treatment.
Main Methods:
- Literature review of recent studies on oncolytic viruses.
- Analysis of OV characteristics and mechanisms of action.
- Synthesis of current research status, challenges, and future directions.
Main Results:
- OVs exhibit dual mechanisms: direct tumor cell lysis and indirect antitumor effects.
- OVs activate antitumor immunity and modulate the tumor microenvironment.
- Current research highlights OV potential but also identifies significant challenges.
Conclusions:
- Oncolytic viruses offer a novel immunotherapy approach with direct and indirect antitumor effects.
- Further research is needed to overcome challenges for successful clinical application.
- OVs hold significant promise for future cancer treatment strategies.
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