不同激活的B细胞发展调控表型,并表现出不同的免疫抑制特征:一项比较研究
Elina A Zheremyan1, Alina S Ustiugova1, Aksinya N Uvarova1
1Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.
Frontiers in immunology
|September 21, 2023
概括
为治疗产生调节性B细胞 (Bregs) 是具有挑战性的,因为数量很少. 一个CD40L + CpG + IL21组合有效地诱导免疫抑制的Bregsex vivo对于潜在的细胞治疗应用.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞疗法细胞疗法
- 免疫抑制是一种免疫抑制.
背景情况:
- 调控性B淋巴细胞 (Bregs) 具有免疫抑制特性,有利于治疗与免疫相关的疾病.
- 目前使用Bregs的采用细胞疗法受到低细胞数量和体外生存率低下的限制.
- 从外围血液CD19+细胞生成Bregsex vivo提供了一个有前途的替代方案,以增加细胞产量.
研究的目的:
- 研究有效的体外方法来使初级B细胞分化为免疫抑制调节性B淋巴细胞 (Bregs).
- 为了比较各种刺激尾酒在产生功能性Bregs的有效性,以潜在的治疗用途.
主要方法:
- 主要B细胞使用CD40L,CpG,IL4,IL21,PMA和ionomycin的组合被活体刺激.
- 进行了功能性测试,以评估生成的B细胞的免疫抑制能力.
- 对不同的刺激方案进行比较分析,以确定最有效的方法.
主要成果:
- CD40L,CpG和IL21的组合在诱导B细胞中抑制表型方面被证明是最有效的.
- 这种特殊的治疗导致了功能活性调节性B淋巴细胞 (Bregs) 的产生.
- CD40L + CpG + IL21 协议显示了诱导免疫抑制性 Bregs 的高能力.
结论:
- CD40L + CpG + IL21刺激尾酒是一种高效的方法来产生免疫抑制的Bregs ex vivo.
- 这种方法增强了在免疫相关疾病的采用细胞疗法中使用扩展Bregs的潜力.
- 优化Bregs的ex vivo生成可以克服与细胞数量低和初级培养中的生存相关的局限性.
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