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Turning the gene tap off; implications of regulating gene expression for cancer therapeutics
James F Curtin1, Marianela Candolfi, Weidong Xiong
1University of California-Los Angeles and Cedars Sinai Medical Center, Los Angeles, CA 90048, USA.
Abstract:
Cancer poses a tremendous therapeutic challenge worldwide, highlighting the critical need for developing novel therapeutics. A promising cancer treatment modality is gene therapy, which is a form of molecular medicine designed to introduce into target cells genetic material with therapeutic intent. Anticancer gene therapy strategies currently used in preclinical models, and in some cases in the clinic, include proapoptotic genes, oncolytic/replicative vectors, conditional cytotoxic approaches, inhibition of angiogenesis, inhibition of growth factor signaling, inactivation of oncogenes, inhibition of tumor invasion and stimulation of the immune system. The translation of these novel therapeutic modalities from the preclinical setting to the clinic has been driven by encouraging preclinical efficacy data and advances in gene delivery technologies. One area of intense research involves the ability to accurately regulate the levels of therapeutic gene expression to achieve enhanced efficacy and provide the capability to switch gene expression off completely if adverse side effects should arise. This feature could also be implemented to switch gene expression off when a successful therapeutic outcome ensues. Here, we will review recent developments related to the engineering of transcriptional switches within gene delivery systems, which could be implemented in clinical gene therapy applications directed at the treatment of cancer.
Insights
Gene therapy offers a promising approach to cancer treatment. Researchers are developing transcriptional switches for precise control of gene expression, enhancing therapeutic efficacy and safety in cancer gene therapy.
Area of Science:
- Oncology
- Molecular Medicine
- Biotechnology
Background:
- Cancer presents a significant global health challenge, necessitating innovative therapeutic strategies.
- Gene therapy, a form of molecular medicine, introduces genetic material into target cells for therapeutic purposes.
- Current anticancer gene therapy approaches encompass various strategies, including apoptosis induction, oncolytic vectors, and immune system stimulation.
Purpose of the Study:
- To review recent advancements in engineering transcriptional switches for gene delivery systems.
- To explore the potential of these switches in clinical gene therapy applications for cancer treatment.
- To highlight the importance of precise gene expression regulation for enhanced efficacy and safety.
Main Methods:
- Review of preclinical and clinical gene therapy strategies for cancer.
- Focus on the engineering of transcriptional switches within gene delivery systems.
- Discussion of advances in gene delivery technologies enabling precise gene expression control.
Main Results:
- Gene therapy strategies show promise in preclinical and clinical cancer treatment.
- Transcriptional switches offer a mechanism for accurate regulation of therapeutic gene expression.
- The ability to switch gene expression on or off is crucial for optimizing efficacy and managing side effects.
Conclusions:
- Engineering transcriptional switches is a key area of research for improving cancer gene therapy.
- Precise control over gene expression can lead to enhanced therapeutic outcomes and improved safety profiles.
- These advancements hold significant potential for future clinical applications in oncology.
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