基于B7-H3纳米体的CAR T细胞控制多发性骨髓瘤的生长,而双重的BCMA/B7-H3CAR T细胞克服了抗原逃逸
Arne Van der Vreken1, Fien Meeus1, Chenggong Tu1
1Translational Oncology Research Center, Department of Biomedical Sciences, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, B-1090, Brussels, Belgium.
Journal of hematology & oncology
|November 14, 2025
概括
针对B7-H3的新CAR T细胞疗法对多发性骨髓瘤 (MM) 患者显示有前途,这些患者在BCMA向治疗后复发. 双重向BCMA和B7-H3可以克服抗原逃逸并改善MM的持久反应.
科学领域:
- 免疫治疗是一种免疫疗法.
- 在瘤学瘤学.
- 细胞疗法 细胞疗法
背景情况:
- 化学抗原受体 (CAR) 针对B细胞成熟抗原 (BCMA) 的T细胞疗法对多发性骨髓瘤 (MM) 有效.
- 在BCMA向治疗后MM复发是常见的,原因是T细胞耗尽和BCMA阴性瘤逃逸.
- 新的治疗点对于克服抗原逃逸和提高MM治疗耐久性至关重要.
研究的目的:
- 研究B7-H3作为多发性骨髓瘤新型免疫治疗点.
- 设计和评估针对B7-H3.3的基于纳米体的CAR T细胞 (纳米CARs).
- 评估双 BCMA/B7-H3 向策略对抗抗原逃逸的有效性.
主要方法:
- 在MM患者样本上评估了B7-H3表达.
- 开发了针对B7-H3的纳米CAR T细胞,并评估了它们在体外的细胞毒性和细胞因子产生.
- 在MM异种移植模型中测试了B7-H3纳米CAR和双重向策略 (BCMA/B7-H3 CAR T细胞和CARpooling) 的抗瘤活性.
主要成果:
- 在60%的MM患者中,B7-H3在血细胞上表达.
- B7-H3纳米CAR T细胞表现出强大的抗原特异性细胞毒性和细胞因子分泌对初级MM细胞.
- 在体内研究表明,B7-H3纳米CAR T细胞的瘤负担降低,生存率提高.
- 双重的BCMA/B7-H3向有效地消除了异质的MM种群,包括抗原逃逸变异.
结论:
- B7-H3代表了多发性骨髓瘤免疫治疗的有希望的目标.
- 具有B7-H3特异性和双向性的纳米CAR T细胞提供了一种防止抗原逃逸的潜在策略.
- 这些方法可能会为MM患者带来更持久和更有效的治疗结果.
关键词:
抗原逃逸的方法B7-H3 B7-H3 B7-H3 B7-H3 B7-H3 B7-H3 B7-H3 B7-H3 B7-H3 B7-H3 B7-H3 B7-H3这就是为什么BCMABCMABCMA.在CAR T细胞中,CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276 CD276多发性骨髓瘤是一种多发性骨髓瘤.更多相关视频
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