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Lumbar Intrathecal Injection of Gene Therapy Vectors for Central Nervous System Targeting in Mice and Rats
Published on: May 16, 2025
An overview of gene therapy approaches to neurological malignancies
1Centro de Biología Molecular Severo Ochoa, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain. MIzquierdo@cbm.uam.es
Abstract:
Tumour development is a disease of both somatic and genetic origin. It originates from a combination of oncogene and tumour suppressor alterations that force the cell into unprogrammed proliferation. It is reasonable to think that a genetic disease could be cured by gene therapy, and several strategies along this line are presently being employed. The use of retroviruses to carry 'suicide' genes has been the most successful approach to date for the treatment of neurological malignancies. The use of adenoviruses with deletions in the E1B region opens a new and elegant possibility for the destruction of tumours deficient in the p53 suppressor gene. Strategies based on the inhibition of angiogenesis are being developed, and those based on blockade of inducers of angiogenesis have given encouraging results in experimental animal models. However, gene therapy has not yet been able to permanently cure a human genetic disease, thereby creating a certain degree of caution among scientists and clinicians.
Insights
Gene therapy offers promising strategies for treating cancer by targeting genetic alterations. While approaches like suicide gene therapy and oncolytic viruses show potential, permanent cures for human genetic diseases remain elusive, necessitating cautious optimism.
Area of Science:
- Oncology
- Genetics
- Gene Therapy
Background:
- Tumorigenesis arises from somatic and genetic alterations, leading to uncontrolled cell proliferation.
- Gene therapy is being explored as a treatment for genetic diseases, including cancers.
- Current gene therapy strategies leverage viral vectors for targeted cancer treatment.
Purpose of the Study:
- To review current gene therapy strategies for cancer treatment.
- To discuss the potential and limitations of gene therapy in oncology.
- To highlight emerging approaches like suicide gene therapy and oncolytic virotherapy.
Main Methods:
- Utilizing retroviruses for 'suicide' gene delivery in neurological malignancies.
- Employing adenoviruses with E1B deletions for p53-deficient tumors.
- Developing anti-angiogenesis strategies, including blockade of angiogenesis inducers.
Main Results:
- Retroviral suicide gene therapy has shown success in treating neurological cancers.
- Adenoviruses targeting p53-deficient tumors present a novel therapeutic avenue.
- Anti-angiogenesis strategies show encouraging results in preclinical models.
Conclusions:
- Gene therapy holds significant promise for cancer treatment, with various viral-based strategies under investigation.
- While progress has been made, particularly in specific cancer types, gene therapy has not yet achieved permanent cures for human genetic diseases.
- Further research and cautious clinical application are warranted given the current limitations and ongoing developments in the field.
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