Targeted gene therapies: tools, applications, optimization

Area of Science:

• Molecular Biology
• Genetics
• Biotechnology

Background:

• Many diseases stem from single-gene mutations or acquired genetic alterations.
• Targeted gene therapies offer a promising treatment strategy for these conditions.
• Current therapies often rely on rare-cutting endonucleases for precise DNA modification.

Purpose of the Study:

• To review the principles and advancements in targeted gene therapies.
• To highlight the advantages of gene targeting over traditional gene therapy methods.
• To discuss future directions and challenges in the field.

Main Methods:

• Gene targeting using rare-cutting endonucleases.
• Homology-directed repair for gene correction.
• Gene disruption for ablating disease genes.
• Genome engineering techniques including mutation, insertion, and deletion.

Main Results:

• Targeted gene therapies enable precise correction or disruption of disease-associated genes.
• Gene targeting offers advantages over transgene-based gene therapy approaches.
• Recent progress is driven by nuclease innovation and improved targeting strategies.

Conclusions:

• Targeted gene therapies hold significant potential for treating a range of human diseases.
• Continued advancements in nuclease technology and mechanistic understanding are crucial for future progress.
• Minimizing off-target effects remains a key focus for safe and effective gene therapy.