一种靶向SARS-CoV-2的siRNA自组装纳米颗粒及其制备方法与应用

CN118853668BActive Publication Date: 2026-07-17SUN YAT SEN UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUN YAT SEN UNIV
Filing Date
2024-06-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing siRNA drugs are ineffective against SARS-CoV-2 variants due to insufficient delivery methods and stability, easy degradation, and issues with biocompatibility and immunogenicity.

Method used

We designed siRNA self-assembling nanoparticles targeting highly conserved regions of SARS-CoV-2. These nanoparticles were then self-assembled in MgSO4 solution using specific RNA motifs to form stable nanoparticles, thereby enhancing the targeting and inhibitory effect on the virus.

Benefits of technology

The prepared siRNA self-assembled nanoparticles exhibited highly efficient inhibitory effects on multiple mutant strains, strong stability, and could be stored and transported at room temperature, significantly reducing viral replication and outperforming simple mixtures of siRNA.

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Abstract

本发明涉及一种靶向SARS‑CoV‑2的siRNA自组装纳米颗粒及其制备方法与应用,属于分子生物学技术领域。本发明的siRNA自组装纳米颗粒的RNA基序的核苷酸序列如SEQ ID NO:23~28所示。本发明制备了siRNA自组装纳米颗粒,靶向SARS‑CoV‑2的多个高度保守区域,对SARS‑CoV‑2复制具有高效的抑制效果。本发明的siRNA自组装纳米颗粒稳定性强,经过多次冻融后仍可保持完整的纳米颗粒结构,并保留其抑制病毒复制的功效,可以短时间内在室温下存储和运输。
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