功能协同化仿生基因编辑载体系统及其制备方法和应用

By constructing a biomimetic lipid carrier that resists protein adsorption, targets cancer cells, and delivers via membrane fusion, and encapsulating CXCL9 protein and a CRISPR system that dual-edits tumor cell genes, the problems of unstable delivery and insufficient targeting of CRISPR/Cas9 in liver cancer treatment were solved, achieving highly efficient liver cancer gene editing and anti-tumor effects.

CN121109508BActive Publication Date: 2026-07-17THE SEVENTH AFFILIATED HOSPITAL SUN YAT SEN UNIV SHENZHEN

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
THE SEVENTH AFFILIATED HOSPITAL SUN YAT SEN UNIV SHENZHEN
Filing Date
2025-09-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing CRISPR/Cas9 gene editing systems suffer from problems such as unstable delivery, low targeting, and insufficient intracellular release efficiency in liver cancer treatment, which limits the therapeutic effect.

Method used

We constructed a biomimetic lipid carrier with anti-protein adsorption, cancer cell targeting, and membrane fusion delivery capabilities. This carrier encapsulated the CXCL9 protein factor and the dual-edited tumor cell genes BAG3 and HSP70 in a CRISPR system, forming a multifunctional synergistic biomimetic gene editing vector system that achieves the stability, precision, and efficiency of the CRISPR system.

Benefits of technology

It improves the gene editing efficiency of liver cancer cells, creates a powerful anti-tumor microenvironment, enhances the killing effect of T cells, and realizes the effective anti-cancer effect of the CRISPR system in the tumor environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及生物工程领域,尤其涉及功能协同化仿生基因编辑载体系统及其制备方法和应用。本发明提供了基因编辑表达盒,包括:癌细胞特异性启动子、CXCL9基因、sgBAG3基因和sgHSP70基因。本发明构建具有抗蛋白吸附、癌细胞靶向、膜融合递送的仿生脂质载体,包载即能癌细胞中高表达CXCL9蛋白因子又能双编辑肿瘤细胞BAG3和HSP70基因的一体式基因编辑CRISPR系统,从而构建出多功能协同化仿生基因编辑载体系统,实现CRISPR系统体内递送的稳定性、癌细胞靶向的精准性、胞内释放的高效性,提高肝癌细胞基因编辑效率,构建出T细胞杀伤增强效应肿瘤免疫微环境,实现CRISPR系统在肿瘤环境中有效抗癌。
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