AKT抑制产生强大的多功能临床级AUTO1 CAR T细胞,增强功能和生存能力
Vedika Mehra1, Giulia Agliardi1,2, Juliana Dias Alves Pinto1,2
1Research Department of Haematology, University College London, London, UK.
Journal for immunotherapy of cancer
|September 14, 2023
概括
一种AKT抑制剂 (VIII) 通过丰富Tscm/Tcm细胞来改善AUTO1 CAR-T细胞治疗成人淋巴细胞白血病. 这增强了CAR-T细胞的扩张,持久性和抗瘤活性,可能克服CD19+复发.
科学领域:
- 免疫治疗是一种免疫疗法.
- 细胞疗法细胞疗法
- 在瘤学瘤学.
背景情况:
- AUTO1是一种针对CD19的化学抗原受体 (CAR) T细胞疗法,有效治疗成人淋巴细胞白血病.
- 最佳的CAR-T细胞疗效依赖于Tscm/Tcm细胞种群,这在严重预治疗的成年患者中很少.
- 需要策略来增强Tscm/Tcm细胞数量和功能在CAR-T细胞制造.
研究的目的:
- 评估使用AKT抑制剂 (VIII) 来分离T细胞扩张与分化.
- 在AUTO1 CAR-T细胞产品中丰富Tscm/Tcm子集.
- 评估VIII对AUTO1细胞功能和制造可扩展性的影响.
主要方法:
- 将AKT抑制剂 (VIII) 纳入AUTO1制造过程中,使用CliniMACS Prodigy平台.
- 在体外评估Tscm/Tcm丰富,细胞扩张,细胞毒性和多功能性.
- 在体内抗瘤活性和代谢概况的评估.
- cGMP规模的制造验证. cGMP规模的制造验证.
主要成果:
- 用VIII制造的AUTO1在体外表现出显著的Tscm/Tcm丰富,改善扩张和增强的细胞毒性.
- 用VIII处理的AUTO1细胞在体内表现出优异的抗瘤活性,Th1/Th17倾斜,多功能性增加.
- 观察到一种独特的代谢特征和自的特征,支持增强的细胞功能.
- 基于VIII的制造可扩展到cGMP水平,并产生具有卓越表型和功能的AUTO1产品.
结论:
- 在制造过程中使用AKT抑制剂 (VIII) 提高了AUTO1 CAR-T细胞产品质量和抗瘤功效.
- VIII促进了Tscm/Tcm的丰富,并改善了关键的功能参数,解决了严重预治疗患者的局限性.
- 这种方法可能有助于克服与产品相关的因素,这些因素有助于在淋巴细胞白血病中导致CD19+复发.
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