Emerging frontiers in genome editing: From CRISPR to next-generation technologies

Area of Science:

• Molecular Biology
• Genetics
• Biotechnology

Background:

• Genome editing allows precise genetic material modification across organisms.
• Early methods like Zinc Finger Nucleases (ZFNs) and Transcription Activator-Like Effector Nucleases (TALENs) laid groundwork but faced limitations.
• Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-associated protein 9 (CRISPR-Cas9) systems revolutionized the field with simplicity and efficiency.

Purpose of the Study:

• To review the evolution of genome editing technologies.
• To highlight advancements from early methods to current CRISPR-based systems.
• To discuss emerging tools, applications, and future directions in genome editing.

Main Methods:

• Review of homologous recombination, ZFNs, TALENs, and CRISPR-Cas systems.
• Discussion of CRISPR variants (e.g., CRISPR-Cas12a, base editors, prime editors).
• Exploration of emerging tools like CRISPR-associated transposases, RNA-targeting Cas13, epigenome editing, and gene drives.

Main Results:

• CRISPR-Cas systems, especially CRISPR-Cas9, offer superior simplicity, efficiency, and adaptability compared to earlier technologies.
• Advanced variants and emerging tools expand editing capabilities to RNA and epigenome modification.
• Efficient delivery systems (viral and non-viral) are crucial for clinical translation.
• Future innovations focus on AI-guided design and novel delivery vehicles to enhance efficiency and safety.

Conclusions:

• Genome editing technologies are rapidly advancing, enabling precise, programmable, and ethically responsible therapeutic applications.
• Despite challenges like off-target effects and immunogenicity, genome editing is redefining biomedical research and disease correction.
• CRISPR-derived technologies are at the forefront of next-generation genetic medicine, promising significant impact on drug development and treatment strategies.