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Gene therapy in surgical oncology
S P Gagandeep1, G J Poston, A R Kinsella
1Department of Surgery, Royal Liverpool University Hospital, England.
Background:
Surgery remains the only potentially curative treatment modality for the majority of patients with solid tumors. Conventional chemotherapy and radiotherapy only have roles as adjuvant or palliative therapies for most common cancers. Two decades of research have led to the first attempts at producing and introducing clinically useful genetically modified cells into humans.
Methods:
Modern molecular methods have been developed that allow the stable transfer of foreign DNA sequences into human and other mammalian somatic cells. At the present time, gene therapy predominantly involves gene insertion either directly into a target cell in situ or into an appropriate cell in vitro that is then introduced to a physiologically relevant site. We present an overview of the potential applications of molecular biology for practicing surgeons, particularly in the field of surgical oncology, to show how genes are harnessed and inserted into target somatic cells.
Conclusions:
Although significant clinical therapies have and will continue to emerge from these initial experiments, only the future will provide evidence of whether the present technical skills are sufficient to have an impact on the long-term benefits for patients with cancer and genetic defects.
Insights
Gene therapy introduces genetically modified cells for cancer treatment, offering potential cures beyond surgery. Future research will determine its long-term impact on patients with cancer and genetic defects.
Area of Science:
- Surgical Oncology
- Molecular Biology
- Gene Therapy
Background:
- Surgery is the primary curative treatment for many solid tumors.
- Chemotherapy and radiotherapy serve as adjuvant or palliative options.
- Recent advancements enable the clinical use of genetically modified cells.
Purpose of the Study:
- To provide surgeons with an overview of molecular biology applications.
- To highlight the potential of gene therapy in surgical oncology.
- To explain the methods of gene harnessing and insertion into somatic cells.
Main Methods:
- Utilizing modern molecular methods for stable foreign DNA transfer into somatic cells.
- Employing in situ or in vitro gene insertion into target cells.
- Introducing modified cells to physiologically relevant sites.
Main Results:
- Development of techniques for genetically modifying human somatic cells.
- Established methods for gene insertion into target cells for therapeutic purposes.
- Exploration of gene therapy's role in surgical oncology.
Conclusions:
- Initial gene therapy experiments show promise for significant clinical therapies.
- The long-term benefits for cancer and genetic defect patients remain to be determined.
- Future evidence will confirm the sufficiency of current technical skills in gene therapy.