Nanobodies specifically binding aav8 and aav9 and uses thereof

By developing nanobodies that specifically bind to AAV8 and AAV9 and utilizing the characteristics of camel-derived nanobodies, we have achieved efficient purification and accurate detection of AAV8 and AAV9, solving the problems of complex purification and high detection costs in existing technologies, and making it suitable for large-scale preparation and quality control in the field of gene therapy.

CN122404540APending Publication Date: 2026-07-17XIAMEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAMEN UNIV
Filing Date
2026-04-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient for efficient and low-cost purification and accurate detection of AAV8 and AAV9 dual serotypes. Traditional methods are complex and rely on imported antibodies, which cannot meet the needs of large-scale preparation and quality control in the field of gene therapy.

Method used

We developed nanobodies that specifically bind to AAV8 and AAV9, utilizing the properties of camel-derived nanobodies to achieve efficient purification and detection via affinity chromatography. These nanobodies are designed with specific amino acid sequences to bind to AAV8 and AAV9, avoiding cross-reactivity and making them suitable for industrial applications.

Benefits of technology

It achieves efficient purification and accurate detection of AAV8 and AAV9, reduces production costs, improves the accuracy of product quality control, adapts to the needs of large-scale production, and ensures the independent control of the supply chain.

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Abstract

本发明公开了一种特异性结合AAV8和AAV9的纳米抗体及其应用,其氨基酸序列包括依次相连的FR1、CDR1、FR2、CDR2、FR3、CDR3、FR4,其中,CDR1的氨基酸序列如SEQ ID NO:01所示,CDR2的氨基酸序列如SEQ ID NO:02所示,CDR3的氨基酸序列如SEQ ID NO:03所示。本发明纳米抗体可精准识别并结合AAV8和AAV9双血清型,不与其他血清型发生交叉反应,有效避免检测与纯化过程中的非特异性干扰,从而显著提升产品质量控制的准确性。
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