Transposon-based vector systems for gene therapy clinical trials: challenges and considerations

Area of Science:

• Biotechnology
• Molecular Biology
• Gene Therapy

Background:

• Gene therapy faces challenges in tool development and site-specific gene targeting.
• Viral vectors, while promising, have caused fatal side effects, limiting clinical use.
• DNA transposons are emerging as safer alternatives for gene delivery.

Purpose of the Study:

• To review adverse effects of virus-based gene therapy.
• To explore DNA transposon systems as gene therapy vectors.
• To critically assess the piggyBac system for therapeutic advancement.

Main Methods:

• Review of adverse effects of viral vectors in gene therapy.
• Discussion of adeno-associated virus vector system.
• Analysis of DNA transposon systems: Sleeping Beauty, Tol2, and piggyBac.
• Focus on the piggyBac system's potential and challenges for gene therapy.

Main Results:

• Viral vectors have demonstrated significant safety concerns.
• DNA transposons, particularly piggyBac, show potential as safer gene delivery tools.
• The Sleeping Beauty, Tol2, and piggyBac systems have distinct advantages and limitations.

Conclusions:

• DNA transposons represent a viable and safer alternative to viral vectors for gene therapy.
• The piggyBac system is a highly promising candidate for future therapeutic applications.
• Further research is needed to address challenges for advancing piggyBac in clinical settings.