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Updated: Jun 23, 2026

Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
Published on: January 7, 2019
Emerging Oncolytic Viruses: Beyond Adenoviruses and Herpes Simplex Virus
Santosh Chokkakula1, Chengliang Yin2, Bing Yang3,4
1Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Chungbuk, 28644, South Korea.
Abstract:
Oncolytic virotherapy represents an innovative therapeutic modality in oncology, exploiting the selective tropism of viruses to target and eradicate malignant cells. Unlike conventional cancer treatments such as chemotherapy and radiotherapy, oncolytic viruses (OVs) exhibit a dual mechanism of action: direct tumor cell lysis and potent immune activation. This approach transforms tumors into in situ vaccines, generating durable anti-tumor immune memory. The field has garnered substantial attention following the regulatory approval of talimogene laherparepvec (T-VEC), a genetically engineered herpes simplex virus, for metastatic melanoma treatment-a watershed moment in oncolytic virotherapy. Recent advances in genetic engineering have significantly enhanced OV specificity and efficacy, addressing critical challenges including tumor-selective targeting and immune evasion. This review comprehensively examines the complex mechanisms underlying OV therapeutic action, clinical applications, and recent developments that position oncolytic virotherapy as a transformative strategy in contemporary cancer treatment.
Insights
Oncolytic virotherapy uses viruses to kill cancer cells and activate the immune system. This innovative approach, with recent advances, offers a promising new strategy for cancer treatment.
Area of Science:
- Oncology
- Virology
- Immunology
Background:
- Oncolytic virotherapy is an emerging cancer treatment.
- Oncolytic viruses (OVs) have a dual mechanism: direct tumor lysis and immune activation.
- OVs can act as in situ vaccines, generating anti-tumor immune memory.
Purpose of the Study:
- To review the mechanisms of oncolytic virotherapy.
- To discuss clinical applications of OVs.
- To highlight recent advancements in OV development.
Main Methods:
- Review of scientific literature on oncolytic virotherapy.
- Analysis of the mechanisms of action of OVs.
- Examination of clinical trial data and regulatory approvals.
Main Results:
- Oncolytic virotherapy offers direct tumor cell killing and stimulates a potent anti-tumor immune response.
- Genetic engineering has improved OV specificity and efficacy, overcoming challenges like immune evasion.
- The approval of talimogene laherparepvec (T-VEC) marks a significant milestone.
Conclusions:
- Oncolytic virotherapy is a transformative strategy in cancer treatment.
- Advances in genetic engineering are enhancing OV potential.
- This approach holds promise for durable anti-tumor immunity.
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