源自枯草芽孢杆菌的微生物多肽在制备抗肿瘤疫苗中的应用

By cross-reacting the microbial polypeptide YSDELFVEL derived from Bacillus subtilis with the tumor antigen FINDEIFVEL overexpressed by EZH2, an anti-tumor vaccine was prepared, solving the problem of immune tolerance in TAA vaccines and achieving highly effective tumor treatment and prevention.

CN121944092BActive Publication Date: 2026-07-17HARBIN MEDICAL UNIVERSITY
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN MEDICAL UNIVERSITY
Filing Date
2026-03-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing tumor vaccines, especially TAA vaccines, suffer from immune tolerance issues, making it difficult to effectively activate the immune system to attack tumor cells. Furthermore, their production costs are high, hindering large-scale deployment.

Method used

Using the microbial polypeptide YSDELFVEL derived from Bacillus subtilis, which has high homology with FINDEIFVEL, a tumor-associated antigen overexpressing EZH2, an anti-tumor vaccine was prepared by activating T cells through cross-reaction, which is suitable for tumor types overexpressing EZH2.

Benefits of technology

It significantly improves T-cell activation efficiency, effectively kills tumor cells, reduces preparation costs, facilitates large-scale production, and has dual potential for tumor treatment and prevention, making it suitable for a variety of common cancers.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121944092B_ABST
    Figure CN121944092B_ABST
Patent Text Reader

Abstract

本发明涉及源自枯草芽孢杆菌的微生物多肽在制备抗肿瘤疫苗中的应用,属于生物医药与肿瘤免疫治疗药物技术领域。为解决肿瘤相关抗原疫苗免疫耐受问题,本发明提供了一种源自枯草芽孢杆菌的微生物多肽在制备抗肿瘤疫苗中的应用,其氨基酸序列如SEQ ID No:1所示,其与EZH2来源的肿瘤相关抗原具有高度同源性,能够引发T细胞交叉反应,有效提升免疫原性与肿瘤杀伤效应,可作为核心活性成分,用于制备针对EZH2过表达肿瘤的治疗性疫苗,适用于多种EZH2高表达的常见癌种,且兼具治疗与预防潜力,既可诱导抗肿瘤免疫治疗肿瘤,也能用于高风险人群肿瘤预防。
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Bacillus marinus S-1 and anti-tumor active polypeptide produced thereby

    CN103555622A

  • Immunogenic peptides for the treatment of prostate and breast cancer

    US20060140967A1