Gene editing with 'pencil' rather than 'scissors' in human pluripotent stem cells

Area of Science:

• Stem Cell Biology
• Genetics
• Molecular Biology

Background:

• Genome editing technologies have advanced significantly.
• Human pluripotent stem cells (hPSCs) are crucial for disease modeling and cell therapy.
• Pathogenic variants often involve point mutations.

Purpose of the Study:

• To review recent progress in genome editing methodologies.
• To highlight the application of hPSCs in translational medicine.
• To discuss the development of novel gene editing tools.

Main Methods:

• Review of current literature on genome editing techniques.
• Focus on base editing and prime editing tools.
• Discussion of homologous directed repair (HDR) strategies.
• Analysis of Cas9 endonuclease applications.

Main Results:

• Development of precise gene editing tools beyond traditional CRISPR-Cas9.
• Successful creation of isogenic disease models using hPSCs.
• Potential for autologous cell therapy through gene correction in hPSCs.
• Avoidance of off-target mutations and large deletions with new editing methods.

Conclusions:

• Genome editing in hPSCs offers powerful approaches for understanding diseases.
• Novel 'pencil-like' gene editing tools provide greater precision.
• These advancements pave the way for future clinical applications in cell therapy.