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Published on: March 20, 2020
The viral approach to breast cancer immunotherapy
Atefeh Arab1, Nima Behravan2, Atefeh Razazn1
1Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
Abstract:
Despite years of intensive research, breast cancer remains the leading cause of death in women worldwide. New technologies including oncolytic virus therapies, virus, and phage display are among the most powerful and advanced methods that have emerged in recent years with potential applications in cancer prevention and treatment. Oncolytic virus therapy is an interesting strategy for cancer treatment. Presently, a number of viruses from different virus families are under laboratory and clinical investigation as oncolytic therapeutics. Oncolytic viruses (OVs) have been shown to be able to induce and initiate a systemic antitumor immune response. The possibility of application of a multimodal therapy using a combination of the OV therapy with immune checkpoint inhibitors and cancer antigen vaccination holds a great promise in the future of cancer immunotherapy. Display of immunologic peptides on bacterial viruses (bacteriophages) is also increasingly being considered as a new and strong cancer vaccine delivery strategy. In phage display immunotherapy, a peptide or protein antigen is presented by genetic fusions to the phage coat proteins, and the phage construct formulation acts as a protective or preventive vaccine against cancer. In our laboratory, we have recently tested a few peptides (E75, AE37, and GP2) derived from HER2/neu proto-oncogene as vaccine delivery modalities for the treatment of TUBO breast cancer xenograft tumors of BALB/c mice. Here, in this paper, we discuss the latest advancements in the applications of OVs and bacterial viruses display systems as new and advanced modalities in cancer immune therapeutics.
Insights
Oncolytic virus (OV) therapy and phage display systems show promise for cancer treatment. These advanced methods can initiate antitumor immune responses and serve as novel cancer vaccines, offering new therapeutic strategies.
Area of Science:
- Oncology
- Immunotherapy
- Virology
Background:
- Breast cancer remains a leading global health concern, necessitating innovative treatment strategies.
- Oncolytic viruses (OVs) and phage display systems are emerging as powerful therapeutic modalities.
- These technologies have the potential to induce systemic antitumor immune responses and act as cancer vaccines.
Purpose of the Study:
- To review advancements in oncolytic virus (OV) therapies and bacterial virus display systems for cancer immunotherapy.
- To highlight the potential of these novel approaches in cancer prevention and treatment.
- To discuss the combination of OV therapy with other immunotherapies like checkpoint inhibitors and cancer vaccines.
Main Methods:
- Investigating oncolytic viruses (OVs) from various families for therapeutic potential.
- Utilizing phage display to present immunologic peptides (e.g., E75, AE37, GP2) derived from HER2/neu.
- Testing peptide-based vaccines derived from HER2/neu for the treatment of breast cancer xenografts in mice.
Main Results:
- Oncolytic viruses (OVs) demonstrate the ability to induce systemic antitumor immune responses.
- Phage display systems offer a novel strategy for cancer vaccine delivery by presenting antigens.
- Experimental vaccines derived from HER2/neu peptides showed potential in preclinical breast cancer models.
Conclusions:
- Oncolytic virus (OV) therapy and phage display represent promising advancements in cancer immunotherapy.
- Multimodal therapies combining OV therapy with immune checkpoint inhibitors and cancer vaccines hold significant future potential.
- Bacterial virus display systems provide a strong platform for developing new cancer vaccines and therapeutics.
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