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Updated: Jul 6, 2026

Defining Gene Functions in Tumorigenesis by Ex vivo Ablation of Floxed Alleles in Malignant Peripheral Nerve Sheath Tumor Cells
Published on: August 25, 2021
Principles and applications of gene therapy in colon cancer
Rajaraman Durai1, Shi Yu Yang, Alexander M Seifalian
1Academic Division of Surgical and Interventional Sciences, University College London, Rowland Hill Street, London NW3 2PF, UK.
Abstract:
Colorectal cancer is one of the leading causes of mortality and morbidity. Mutations and aberration of some of the genes may lead to colon cancer. With advancing knowledge, more and more defective genes can be identified. Theoretically, correction of these defective genes, selective overexpression of certain genes may lead to not only prevention of cancer development but also regression of existing cancer. Carcinogenesis is a multistep process and more than one gene may be altered. At present, the success of gene therapy as a stand alone therapy is limited by poor expression and long-term non-expression of transferred genes, immunological effect on the viral vectors, viraemia, leukaemia and occasional deaths. Further experiments and trials are underway to modify the vectors and genes to make sure gene therapy is safe, effective and long-lasting before it can be used in day-to-day practice.
Insights
Gene therapy offers a theoretical approach to preventing and treating colon cancer by correcting defective genes. Current challenges include gene expression issues and vector safety, with ongoing research to improve efficacy and long-term use.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Colorectal cancer is a major cause of death and illness worldwide.
- Gene mutations and aberrations are implicated in colon cancer development.
- Advancements in genetic knowledge identify more causative genes.
Purpose of the Study:
- To explore the potential of gene therapy for colon cancer prevention and treatment.
- To address the limitations of current gene therapy approaches.
Main Methods:
- Theoretical exploration of gene correction and overexpression strategies.
- Review of existing challenges in gene therapy efficacy and safety.
Main Results:
- Gene therapy holds theoretical promise for preventing cancer and regressing existing tumors.
- Current limitations include poor gene expression, immunological responses to vectors, and potential adverse effects.
Conclusions:
- Gene therapy for colon cancer is promising but requires further research.
- Ongoing trials focus on modifying vectors and genes to enhance safety, efficacy, and longevity for clinical application.
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