AAV viral vector delivery to the brain by shape-conforming MR-guided infusions

Area of Science:

• Neuroscience
• Biotechnology
• Gene Therapy

Background:

• Gene transfer holds therapeutic promise for brain conditions but faces significant complexity.
• Clinical gene therapy success hinges on accurate genetic/anatomical targeting and effective viral vector selection.
• Consistent and predictable vector delivery is crucial for successful clinical trials.

Purpose of the Study:

• To describe an optimized Adeno-Associated Virus (AAV) viral vector delivery system for real-time monitoring and administration into brain regions.
• To present MRI-guided technology for AAV vector administration in ongoing clinical trials.
• To explore how infusion cannula design and stereotactic trajectory can maximize anatomical coverage via fluid backflow.

Main Methods:

• Development and application of a real-time monitored AAV viral vector delivery system.
• Utilization of Magnetic Resonance Imaging (MRI)-guided technology for precise vector administration.
• Employing specific infusion cannula designs and stereotactic trajectories to enhance anatomical coverage through fluid backflow.

Main Results:

• The described AAV delivery system allows for optimization and real-time monitoring of vector administration.
• MRI-guided technology enables precise delivery of AAV vectors into targeted brain regions.
• Innovative infusion techniques maximize anatomical coverage, fitting the infusion shape to the target anatomy.

Conclusions:

• The developed AAV vector delivery system enhances precision and predictability in brain gene therapy.
• Optimized delivery strategies, including MRI guidance and cannula design, are critical for successful clinical gene therapy trials.
• This approach offers a more precise method for fitting gene therapy delivery to specific anatomical targets in the brain.