工程T细胞分泌抗BCMAT细胞参与者控制多发性骨髓瘤,并在体内促进免疫记忆
Laura Díez-Alonso1,2,3, Aïda Falgas4,5, Javier Arroyo-Ródenas1,2,3
1Cancer Immunotherapy Unit (UNICA), Department of Immunology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain.
Science translational medicine
|February 14, 2024
概括
与CAR-T细胞相比,分泌双特异性抗体的工程T细胞 (STAb-T) 对多发性骨髓瘤具有更高的疗效. STAb-T细胞克服了耐药性并控制了疾病的进展,为复发性/耐药性多发性髓瘤提供了有前途的新疗法.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 血液学 血液学 血液学
背景情况:
- 多发性骨髓瘤是一种无法治愈的血液性恶性瘤.
- 像CAR-T和TCE这样的BCMA导向免疫疗法显示出临床活性,但面临抗药性.
- 对复发性/耐药性多发性骨髓瘤患者需要替代策略.
研究的目的:
- 将STAb-T细胞与CAR-T细胞的临床前治疗潜力进行比较.
- 在T细胞限制的环境中评估疗效,模仿复发性/耐药性多发性骨髓瘤.
- 评估STAb-T细胞在克服抵抗和免疫逃脱方面的优势.
主要方法:
- 临床前研究比较第二代抗BCMA CAR-T细胞和BCMAxCD3 STAb-T细胞.
- 在体外评估T细胞活性在低效应剂与标比率和耐溶性BCMA的耐药性.
- 在异种移植模型中对STAb-T细胞扩张,持久性和控制多发性髓瘤进展的体内评估.
主要成果:
- STAb-T细胞在非常低的效应因子与点比率下表现出强烈的活性.
- STAb-T细胞对可溶性BCMA介导的抑制具有抗性,增强了细胞毒性.
- 与CAR-T细胞相比,STAb-T细胞在体内表现出强大的扩张,持久性和对多发性髓瘤进展的优越控制.
结论:
- 工程T细胞分泌TCE抗体 (STAb-T) 是对多发性骨髓瘤的一种有前途的治疗策略.
- 与CAR-T细胞相比,STAb-T细胞具有优势,包括提高疗效和抵抗免疫逃逸的能力.
- 这些发现支持对BCMA-STAb-T细胞治疗复发性/耐药性多发性髓瘤的临床研究.
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