Efficient Gene Editing for Heart Disease via ELIP-Based CRISPR Delivery System.

Area of Science:

• Cardiovascular Research
• Gene Therapy
• Nanotechnology

Background:

• Liposomes are promising carriers for CRISPR/Cas9 gene editing in cardiovascular therapy.
• Efficient delivery of genetic material to cardiomyocytes remains a significant challenge.

Purpose of the Study:

• To evaluate echogenic liposomes (ELIP) for delivering CRISPR/Cas9 complexes into cardiomyocytes.
• To assess the impact of ultrasound on gene delivery and editing efficiency in vitro and in vivo.

Main Methods:

• Utilized ELIP loaded with decoy oligodeoxynucleotides (ELIP-NF-κB-FITC) and Cas9-sg-IL1RL1 RNA.
• Tested gene delivery and knockdown in mouse neonatal ventricular myocytes and rat hearts.
• Compared efficacy with and without ultrasound assistance.

Main Results:

• ELIP alone showed limited gene delivery; ultrasound significantly enhanced ELIP penetration into cardiac cells and tissues.
• Ultrasound-mediated ELIP delivery successfully achieved gene editing (knockdown of IL1RL1) in cardiomyocytes.
• The combination of ELIP and ultrasound improved CRISPR/Cas9 delivery and efficacy.

Conclusions:

• Ultrasound-enhanced echogenic liposomes represent an effective strategy for cardiovascular gene therapy.
• This method holds significant potential for developing novel treatments for heart diseases using CRISPR technology.