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Published on: June 23, 2023
Plasmid DNA for Therapeutic Applications in Cancer
David Hernán Martínez-Puente1, José Juan Pérez-Trujillo1, Laura Mireya Zavala-Flores2
1Histology Department, Faculty of Medicine, Universidad Autonoma de Nuevo Leon (UANL), Monterrey 64460, Mexico.
Abstract:
Recently, the interest in using nucleic acids for therapeutic applications has been increasing. DNA molecules can be manipulated to express a gene of interest for gene therapy applications or vaccine development. Plasmid DNA can be developed to treat different diseases, such as infections and cancer. In most cancers, the immune system is limited or suppressed, allowing cancer cells to grow. DNA vaccination has demonstrated its capacity to stimulate the immune system to fight against cancer cells. Furthermore, plasmids for cancer gene therapy can direct the expression of proteins with different functions, such as enzymes, toxins, and cytotoxic or proapoptotic proteins, to directly kill cancer cells. The progress and promising results reported in animal models in recent years have led to interesting clinical results. These DNA strategies are expected to be approved for cancer treatment in the near future. This review discusses the main strategies, challenges, and future perspectives of using plasmid DNA for cancer treatment.
Insights
Plasmid DNA therapies show promise for cancer treatment by stimulating immune responses and directly killing cancer cells. These nucleic acid strategies are advancing towards clinical approval for various cancers.
Area of Science:
- Biotechnology
- Molecular Biology
- Cancer Therapeutics
Background:
- Nucleic acid therapies, particularly plasmid DNA, are gaining traction for medical applications.
- Cancer often involves immune suppression, hindering the body's natural defenses against malignant cells.
Purpose of the Study:
- To review the strategies, challenges, and future outlook of utilizing plasmid DNA for cancer treatment.
- To highlight the potential of DNA-based approaches in oncology.
Main Methods:
- Review of current research and clinical findings on plasmid DNA in cancer therapy.
- Analysis of DNA vaccination mechanisms and gene therapy applications.
Main Results:
- DNA vaccination effectively stimulates the immune system to target cancer cells.
- Plasmid DNA can be engineered to express therapeutic proteins for direct cancer cell killing.
- Promising results in preclinical models are translating into encouraging clinical outcomes.
Conclusions:
- Plasmid DNA strategies offer a dual approach to cancer treatment: immune stimulation and direct cytotoxicity.
- These DNA-based therapies are progressing rapidly and are anticipated for near-future regulatory approval.
- Further research and development are crucial to overcome challenges and maximize the potential of plasmid DNA in oncology.
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