在B细胞淋巴瘤的临床前模型中,capivasertib增强了仿真抗原受体T细胞活性
Hui-Ju Hsieh1, Ryan Urak1, Mary C Clark2
1Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, Duarte, CA 91010, USA.
Molecular therapy. Methods & clinical development
|February 26, 2025
概括
全AKT抑制剂capivasertib通过改善抗瘤活性和持久性来增强仿真抗原受体 (CAR) T细胞疗法. 将capivasertib与CAR T细胞结合起来,有可能在某些癌症中改善患者的治疗结果.
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:
- 酸氨基3-激酶 (PI3K) /蛋白激酶B (AKT) 信号传递对于正常和癌细胞生长以及T细胞激活至关重要.
- 之前的研究表明,AKT 抑制剂 VIII 增强了仿真抗原受体 (CAR) T 细胞功能,但不是临床级.
- 像capivasertib这样的泛-AKT抑制剂在临床试验中用于PIK3CA/AKT/PTEN变异的癌症.
研究的目的:
- 评估capivasertib,一个泛-AKT抑制剂,用于增强CAR T细胞治疗效果,无论是ex vivo还是in vivo.
- 为了研究卡维萨塞蒂布对CAR T细胞功能和基因/蛋白质表达的机械效应.
- 评估将capivasertib与CAR T细胞疗法相结合的潜力,以改善患者的治疗结果.
主要方法:
- 在制造和刺激过程中用capivasertib对T细胞进行ex vivo治疗.
- 在B细胞淋巴瘤小鼠模型中使用capivasertib和CD19特异性的CAR T细胞进行体内组合疗法.
- 对CAR T细胞抗瘤活性,持久性和基因/蛋白质表达模式的分析.
主要成果:
- 在B细胞淋巴瘤小鼠模型中,ex vivo capivasertib治疗增强了CAR T细胞抗瘤活性.
- Capivasertib调节的基因和蛋白质表达与记忆和功效器CAR T细胞功能相关.
- 在体内组合疗法改善了PTEN缺陷淋巴瘤模型中的功能CAR T细胞的早期反应和持久性.
结论:
- 卡维萨塞蒂布有效地增强了CAR T细胞功能,类似于AKT抑制剂VIII,但是一种临床级化合物.
- 将capivasertib与CAR T细胞疗法结合使用,ex vivo和in vivo显示出改善治疗结果的潜力.
- 组合疗法可能为CAR T细胞疗法的挑战提供解决方案,特别是在PTEN缺乏的癌症中.
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