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Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
Published on: January 7, 2019
Oncolytic Poxviruses
Winnie M Chan1, Grant McFadden1
1Department of Molecular Genetics and Microbiology, College of Medicine, University of Florida, Gainesville, Florida 32610.
Abstract:
Current standard treatments of cancer can prolong survival of many cancer patients but usually do not effectively cure the disease. Oncolytic virotherapy is an emerging therapeutic for the treatment of cancer that exploits replication-competent viruses to selectively infect and destroy cancerous cells while sparing normal cells and tissues. Clinical and/or preclinical studies on oncolytic viruses have revealed that the candidate viruses being tested in trials are remarkably safe and offer potential for treating many classes of currently incurable cancers. Among these candidates are vaccinia and myxoma viruses, which belong to the family Poxviridae and possess promising oncolytic features. This article describes poxviruses that are being developed for oncolytic virotherapy and summarizes the outcomes of both clinical and preclinical studies. Additionally, studies demonstrating superior efficacy when poxvirus oncolytic virotherapy is combined with conventional therapies are described.
Insights
Poxviruses like vaccinia and myxoma are promising candidates for oncolytic virotherapy, selectively destroying cancer cells with a strong safety profile. Combining these oncolytic viruses with traditional treatments may enhance efficacy for incurable cancers.
Area of Science:
- Oncology
- Virology
- Biotechnology
Background:
- Standard cancer treatments often fail to cure, necessitating novel therapeutic approaches.
- Oncolytic virotherapy utilizes replication-competent viruses to target and eliminate cancer cells, sparing healthy tissues.
- Poxviruses, including vaccinia and myxoma, exhibit significant potential as oncolytic agents due to their inherent properties.
Purpose of the Study:
- To review poxviruses being developed for oncolytic virotherapy.
- To summarize clinical and preclinical findings of poxvirus-based oncolytic virotherapy.
- To explore the synergistic effects of combining poxvirus oncolytic virotherapy with conventional cancer treatments.
Main Methods:
- Review of existing clinical and preclinical studies on poxviruses for oncolytic virotherapy.
- Analysis of safety and efficacy data from trials involving vaccinia and myxoma viruses.
- Examination of research on combination therapies involving poxvirus oncolytic virotherapy.
Main Results:
- Poxviruses demonstrate remarkable safety in clinical and preclinical oncolytic virotherapy studies.
- Candidate poxviruses show potential for treating various types of currently incurable cancers.
- Combination of poxvirus oncolytic virotherapy with conventional therapies indicates superior efficacy.
Conclusions:
- Poxviruses are a viable and safe platform for oncolytic virotherapy.
- Further development of poxvirus-based therapies holds promise for challenging cancers.
- Combination strategies may significantly improve treatment outcomes in oncology.
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