Gene therapy: Comprehensive overview and therapeutic applications.

Area of Science:

• Biotechnology
• Molecular Biology
• Genetics

Background:

• Gene therapy aims to treat diseases by modifying genetic material.
• Current approaches include gene silencing, replacement, and editing using nucleases like CRISPR-Cas.
• Effective gene transfer remains a significant challenge in therapeutic applications.

Purpose of the Study:

• To review current gene transfer methods for gene therapy.
• To discuss the advantages and limitations of each gene transfer technique.
• To provide insights into overcoming delivery hurdles in gene therapy.

Main Methods:

• Exploration of gene silencing (siRNA, shRNA, miRNA).
• Analysis of gene replacement using plasmids and viral vectors.
• Review of gene editing technologies (ZFNs, TALENs, CRISPR/Cas).
• Categorization of gene transfer methods: transformation, transduction, and transfection (viral and non-viral).
• Detailed examination of non-viral transfection: physical, chemical, and biological methods.
• Discussion of viral vector integration and episomal behavior.

Main Results:

• Gene therapy encompasses diverse strategies for disease treatment.
• Multiple gene transfer methods exist, each with specific mechanisms.
• Non-viral methods offer alternatives to viral vectors, utilizing physical, chemical, or biological approaches.
• Viral vectors can provide stable or transient gene expression depending on integration.

Conclusions:

• Gene therapy holds immense potential for treating a wide range of diseases.
• Optimizing gene transfer methods is crucial for successful and safe therapeutic outcomes.
• Understanding the advantages and limitations of each method is key to advancing gene therapy applications.