在CAR-T细胞疗法中预防二次原发性恶性瘤 (SPMs),通过将特定站点的转基因整合到基因组安全港 (GSHs) 中
Pooria Safarzadeh Kozani1,2, Pouya Safarzadeh Kozani3,4
1Research and Development Center of Biotechnology, Tarbiat Modares University, Tehran, Iran. pooriasafarzadeh@modares.ac.ir.
Journal of translational medicine
|October 22, 2025
概括
基因组安全港 (GSHs) 提供了一种解决方案,可以预防CAR-T细胞治疗的二次癌症. 位点定向整合到GSH中确保了CAR-T细胞的疗效,没有致癌风险.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 免疫治疗是一种免疫疗法.
背景情况:
- 化学抗原受体 (CAR) -T细胞疗法对血液恶性瘤有前途,但由于病毒载体插入性突变发生,具有二次癌症的风险.
- 传统的CAR-T细胞制造方法和CRISPR/Cas9基因组编辑可以导致基因组不稳定性和潜在的瘤发生.
- 缓解延迟的基因毒性风险对于CAR-T细胞治疗的长期安全性至关重要.
研究的目的:
- 审查基因组安全港 (GSH) 作为稳定的CAR转基因表达的潜在地点.
- 评估现场导向CAR集成到GSH中的可行性,以提高安全性和有效性.
- 讨论改善CAR-T细胞基因组完整性的挑战和新兴技术.
主要方法:
- 关于CAR-T细胞治疗,插入性突变发生和基因组安全港 (例如AAVS1,TRAC,CCR5,ROSA26,CLYBL) 的文献综述.
- 对现场指导的CAR集成到GSH中的临床前数据的分析.
- 评估新兴的基因组编辑技术和监管方面的考虑.
主要成果:
- 基因组安全港 (GSH) 是经过验证的基因位点,用于稳定,高水平的CAR转基因表达,而不会引起瘤性破坏.
- 局部导向的CAR集成到GSH中可以保持抗瘤疗效,同时消除恶性转变的风险.
- 临床前研究支持GSH工程CAR-T细胞的安全性和有效性.
结论:
- 通过GSH工程的CAR-T细胞代表了向具有治疗潜力的精密免疫疗法和预防二次瘤发生的范式转变.
- 优化同质导向修复,减轻dDNA毒性和标准化监管框架是关键的挑战.
- 在制造业,全球标准和风险分层方面进一步的合作努力对于推进这种方法至关重要.
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