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A Simple and Efficient Approach to Construct Mutant Vaccinia Virus Vectors
Published on: October 30, 2016
Poxvirus cancer therapy
Philippe-Alexandre Gilbert1, Grant McFadden
1Robarts Research Institute, BioTherapeutics Research Group, Siebens-Drake Building Room 133, 1400 Western Road, London, Ontario, Canada N6G 2V4.
Abstract:
Despite many advances in chemotherapy and other medical techniques, patients with cancer often develop local recurrence or metastatic spread. Recent advances in molecular biology and tumor immunology have led to the design of many new anti-tumor vaccines. Such approaches are now using recombinant viruses to treat different types of cancer. From these new developments, innovative fields are emerging: vaccine virotherapy, viral immunotherapy, oncolytic virotherapy and drug virotherapy. Many viruses are currently exploited as recombinant vectors and each offers natural or synthetic characteristics that may provide unique means to treat cancer. Poxviruses are large double stranded DNA viruses that offer many advantageous characteristics as recombinant vectors. Poxvirus-based vectors offer essentially unlimited possibilities for genetic manipulation due to the large size of their DNA and high degree of safety. Vaccinia virus, the prototype virus of the Orthopoxvirus genus that was extensively used to eradicate Smallpox, and other poxviruses are now being considered and used for the treatment of cancer. This review will cover their utilization as anti-cancer therapeutics by describing recent patents (2000-2005).
Insights
Poxviruses, like vaccinia virus, are being developed as anti-cancer therapeutics. These recombinant viruses offer unique advantages for treating cancer, including genetic flexibility and safety, leading to new fields like oncolytic virotherapy.
Area of Science:
- Oncology
- Virology
- Biotechnology
Background:
- Cancer recurrence and metastasis remain significant challenges despite advances in treatment.
- Molecular biology and tumor immunology have spurred the development of novel anti-cancer vaccines.
- Recombinant viruses are emerging as promising therapeutic agents for various cancers.
Purpose of the Study:
- To review the utilization of poxviruses as anti-cancer therapeutics.
- To highlight recent patents (2000-2005) related to poxvirus-based cancer treatments.
- To discuss the potential of viral vectors in cancer therapy.
Main Methods:
- Review of scientific literature and patent databases (2000-2005).
- Focus on poxviruses, particularly vaccinia virus, as recombinant vectors.
- Analysis of characteristics that make poxviruses suitable for anti-cancer applications.
Main Results:
- Poxviruses possess large double-stranded DNA genomes, allowing extensive genetic manipulation.
- Poxvirus-based vectors offer a high degree of safety for therapeutic use.
- Innovative fields such as vaccine virotherapy and oncolytic virotherapy are emerging.
Conclusions:
- Poxviruses, including vaccinia virus, are being actively investigated and utilized for cancer treatment.
- The genetic tractability and safety profile of poxviruses make them valuable tools in cancer therapy.
- Recent patents demonstrate ongoing innovation in poxvirus-based anti-cancer strategies.
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