Redox-responsive phase-separating peptide as a universal delivery vehicle for CRISPR/Cas9 genome editing machinery

• Main Authors: Sun, Yue, Xu, Xiaojie, Chen, Liwei, Chew, Wei Leong, Ping, Yuan, Miserez, Ali
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2023
• Subjects: Science::Biological sciences; CRISPR; Liquid-liquid Phase Separation
• Online Access: https://hdl.handle.net/10356/171251
• Institution: Nanyang Technological University

CRISPR/Cas9-based genome editing tools have enormous potential for the development of various therapeutic treatments due to their reliability and broad applicability. A central requirement of CRISPR/Cas9 is the efficient intracellular delivery of the editing machinery, which remains a well-recognized challenge, notably to deliver Cas9 in its native protein form. Herein, a phase-separating peptide with intracellular redox-triggered release properties is employed to encapsulate and deliver all three forms of CRISRP-Cas9 editing machinery, namely, pDNA, mRNA/sgRNA, and the ribonucleoprotein complex. These modalities are readily recruited within peptide coacervates during liquid-liquid phase separation by simple mixing and exhibit higher transfection and editing efficiency compared to highly optimized commercially available transfection reagents currently used for genome editing.