Insights into Prime Editing Technology: A Deep Dive into Fundamentals, Potentials, and Challenges

Area of Science:

• Molecular Biology
• Genetics
• Biotechnology

Background:

• Prime editing (PE) is a precise gene editing technology with potential for treating genetic disorders.
• Current PE systems require further optimization for enhanced efficiency and broader applicability.

Purpose of the Study:

• To review the fundamentals of prime editing, including its generations and potential.
• To discuss the challenges and future directions for optimizing PE technology.

Main Methods:

• Review of existing literature on prime editing technology.
• Analysis of PE components, including editor proteins and prime editing guide RNA (pegRNA).
• Discussion of host factors, delivery methods, and in vivo barriers.

Main Results:

• PE technology faces challenges in efficiency, cell context dependency, delivery, immune response, and predictability.
• Optimization strategies include modifying PE elements, host genes, and epigenetics.
• Delivery remains a significant hurdle due to the large size of PE components.

Conclusions:

• Further research is needed to overcome PE's limitations for widespread use in gene editing.
• Addressing efficiency, delivery, and safety concerns is essential for advancing PE technology.
• Understanding host factors and improving delivery systems are key to realizing PE's full therapeutic potential.