Related Experiment Video
Updated: Mar 29, 2026
10:50
Directed Evolution Method in Saccharomyces cerevisiae: Mutant Library Creation and Screening
Published on: April 1, 2016
11.5K
Altering Tropism of rAAV by Directed Evolution
Damien Marsic1, Sergei Zolotukhin2
1Department of Pediatrics, College of Medicine, University of Florida, 2033 Mowry Road, CGRC 235, Gainesville, FL, 32610, USA.
Methods in Molecular Biology (Clifton, N.J.)
|November 28, 2015
Summary
Directed evolution creates adeno-associated virus (AAV) capsid variants for targeted tissue infection. This method uses library selection and gene sequencing to identify promising AAV variants for specific cell targeting applications.
Area of Science:
- Biotechnology
- Molecular Biology
- Virology
Background:
- Adeno-associated virus (AAV) vectors are crucial for gene therapy.
- Developing tissue-specific AAV variants is essential for targeted delivery.
- Current methods for AAV targeting require refinement.
Purpose of the Study:
- To outline a directed evolution strategy for generating tissue-specific AAV capsid variants.
- To detail the methodology for selecting and identifying AAV variants with enhanced tropism.
Main Methods:
- Generation of a high-complexity AAV capsid library.
- Iterative selection cycles involving virion production and gene recovery.
- Systemic administration of AAV variants to target tissues.
- Analysis of capsid gene sequences from target tissues.
Main Results:
- The described directed evolution process enriches for AAV variants with altered tropism.
- Identification of prevalent capsid variants after selection cycles.
- Evaluation of selected variants for tissue-specific infectivity.
Conclusions:
- Directed evolution is a powerful approach for engineering targeted AAV vectors.
- This strategy enables the derivation of AAV capsid variants for specific tissue or cell targeting.
- The identified variants hold potential for improved gene therapy applications.
