B细胞激活因子在CAR-T细胞相关的细胞因子释放综合征中发挥着关键作用
Claire Fritz1, Leland Metheny2, David Wald1,3
1Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA.
bioRxiv : the preprint server for biology
|December 17, 2025
概括
在CAR-T治疗中,B细胞激活因子 (BAFF) 驱动细胞因子释放综合征 (CRS). 用贝利马布中和BAFF降低了CRS和ICANS相关的细胞因子,提供了潜在的新治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 细胞因子释放综合征 (CRS) 是CAR-T细胞疗法的显著毒性.
- CRS的特点是免疫效应器状态的升高.
- 乙细胞激活因子 (BAFF) 是一种亲瘤性细胞因子,在CRS中发挥着不具特性的作用.
研究的目的:
- 研究BAFF在与CAR-T细胞相关的CRS病理生理学中的作用.
- 探索BAFF中和作为CRS和免疫效应细胞相关神经毒性综合征 (ICANS) 的治疗策略.
主要方法:
- 在患有CAR-T细胞相关CRS的患者中测量了血清BAFF和IL-6水平.
- 研究了从激活的CAR-T细胞中用IFN-γ刺激的单细胞 BAFF生产的机制.
- 评估了CRS患者单细胞上BCMA的表达.
- 评估了用贝利马布中和BAFF对细胞因子产生和CAR-T细胞功能的影响.
主要成果:
- 与CAR-T细胞相关的CRS患者表现出血清BAFF水平升高,与IL-6水平相关.
- 激活的CAR-T细胞产生IFN-γ,刺激单细胞释放BAFF.
- BAFF诱导单细胞中的CRS相关细胞因子的表达.
- 来自CRS患者的单细胞表达BCMA,进一步通过IFN-γ升调.
- 贝利马布治疗显著降低了与CRS和ICANS相关的细胞因子产生,而不会影响CAR-T细胞活性.
结论:
- BAFF在与CAR-T细胞相关的CRS的病理生理学中发挥着关键作用.
- BAFF 中和成为管理CRS和ICANS的有前途的治疗策略.
- 向BAFF可能是减轻CAR-T疗法毒性的方法,同时保持疗效.
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