Memory t cells against hpv virus and preparation method and application thereof

By isolating PBMCs from the peripheral blood of HPV-positive patients and stimulating them with interferon, anti-CD3 monoclonal antibody and IL-2 in combination with HPV virus antigen, anti-HPV memory T cells were prepared, solving the problems of complexity and safety in the preparation of existing technologies and achieving efficient and safe T cell preparation.

CN122405545APending Publication Date: 2026-07-17SHENZHEN ANXINGYUAN BIOTECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN ANXINGYUAN BIOTECHNOLOGY CO LTD
Filing Date
2025-12-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods for preparing anti-HPV memory T cells are complex and prone to triggering strong immune responses and inflammation. The use of replicating adeno-associated virus may lead to tumorigenesis and viral contamination.

Method used

By isolating PBMCs from the peripheral blood of HPV-positive patients or their haploidentical relatives, culturing them in a medium containing interferon, and adding anti-CD3 monoclonal antibody and IL-2, combined with HPV virus antigen stimulation, anti-HPV memory T cells were prepared, avoiding the use of adeno-associated virus to infect DC cells.

Benefits of technology

The preparation process was simplified, the number and killing effect of anti-HPV memory T cells were increased, the risk of strong immune response and tumor development was reduced, and biosafety was ensured.

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Abstract

本发明提供一种抗HPV病毒的记忆T细胞及其制备方法与应用。该抗HPV病毒的记忆T细胞的制备方法包括以下步骤:S1.从HPV阳性患者或其半相合亲属的外周血中分离得到外周血单个核细胞;S2.利用第一培养基对外周血单个核细胞进行培养,得到第一培养液,其中,第一培养基含有干扰素;S3.向第一培养液中加入抗CD3单克隆抗体和IL‑2,继续培养,获得第二培养液;S4.向所述第二培养液中加入HPV病毒抗原对培养体系中的细胞进行刺激以获得所述抗HPV病毒的记忆T细胞。利用本发明提供的方法可以从HPV阳性患者的外周血的PBMC中获得数量多且对HPV病毒具有较强杀伤效果的记忆T细胞,且制备得到的抗HPV病毒的记忆T细胞在实际使用过程中具有良好的生物安全性。
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