In vivo optical imaging in gene & cell therapy

Area of Science:

• Biomedical imaging
• Gene therapy research
• Molecular imaging

Background:

• Gene therapy development requires monitoring vector transgene expression, distribution, and kinetics.
• Traditional ex vivo methods for monitoring gene delivery are invasive and require subject sacrifice.
• Real-time in vivo analysis offers non-invasive assessment of gene delivery and host responses.

Purpose of the Study:

• To review the state-of-the-art in optical imaging technologies for gene therapy research.
• To describe optical imaging approaches used in preclinical gene therapy studies.
• To outline the future potential of optical imaging in advancing gene therapy.

Main Methods:

• Optical imaging using luminescent or fluorescent reporters.
• Tagging vectors and/or cells of interest with reporter genes.
• Non-invasive spatial, temporal, and quantitative read-out of transgene expression.

Main Results:

• Optical imaging provides a powerful, cost-efficient, and convenient alternative to traditional methods.
• Luminescent and fluorescent reporter systems enable high-throughput analysis of gene delivery.
• This modality allows assessment of both vector and host responses without radioactivity.

Conclusions:

• Optical imaging is a crucial tool for preclinical gene therapy research, enabling non-invasive monitoring.
• Reporter gene-based optical imaging facilitates rapid, quantitative assessment of gene delivery and therapeutic efficacy.
• This technology holds significant potential for the progression of gene therapy as a clinical medicine.