一种超分子组装体及其制备方法和应用

By using supramolecular assemblies formed by functional peptides modified with phenylboronic acid groups and polyphenol molecular binders, the problem of unstable binding between cationic peptide carriers and proteins was solved, achieving efficient intracellular delivery of proteins and maintenance of their biological activity.

CN121371199BActive Publication Date: 2026-07-17CHINA UNIV OF PETROLEUM (EAST CHINA) +4

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Filing Date
2025-10-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, cationic peptide carriers and proteins have difficulty forming stable complexes, which hinders the entry of proteins into cells, especially since there is electrostatic repulsion between positively charged proteins and peptide carriers.

Method used

Functional peptides modified with phenylboronic acid groups and polyphenol molecular binders are used to form supramolecular assemblies through non-covalent interactions. The polyphenol molecular binders bind to catechol groups on the protein surface to form dynamic chemical bonds, which synergistically drive the transmembrane delivery of proteins by nanoscale complexes.

Benefits of technology

This method enables efficient and safe delivery of proteins into cells while maintaining their biological activity, reducing preparation costs, and exhibiting low cytotoxicity and good biocompatibility.

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Abstract

本发明属于生物医药与纳米递送技术领域,具体涉及一种超分子组装体及其制备方法和应用。本发明构建的超分子组装体基于多酚分子粘合剂介导,多酚分子粘合剂能够与目标蛋白质产生较强的相互作用,使目标蛋白质表面修饰邻苯二酚基团,目标蛋白质表面的邻苯二酚基团能够与修饰有苯硼酸基团的功能性多肽结合,通过邻苯二酚与苯硼酸形成动态化学键,形成有利于细胞内吞的复合物,从而解决阳离子多肽与目标蛋白质的结合问题。本发明利用上述原理,构建修饰有苯硼酸的功能性多肽,并通过多酚分子粘合剂,与目标蛋白质通过多重相互作用协同驱动,形成纳米级的超分子组装体,为蛋白质药物的胞内递送提供了一种高效、通用且安全的新方案。
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