伊诺诱导CAR-T细胞中的干性特征,并增强功效
Dorota D Klysz1, Carley Fowler1, Meena Malipatlolla1
1Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA.
Cancer cell
|January 26, 2024
概括
伊诺辛 (INO) 通过重新编程细胞代谢和表观遗传学来增强化学抗原受体T细胞 (CAR-T) 疗法,从而改善干细胞和抗瘤功能. 这为制造更强大的CAR-T细胞产品提供了新的平台.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 腺素 (Ado) 抑制了瘤微环境中的免疫反应.
- 耗尽的CD8+CAR-T细胞通过CD39和CD73酶产生Ado.
- 阻止Ado信号的策略在提高CAR-T细胞功效方面取得了有限的成功.
研究的目的:
- 研究调节腺代谢以增强CAR-T细胞功能的潜力.
- 探索氨酸 (INO) 对CAR-T细胞代谢,干细胞和疗效的影响.
主要方法:
- 基因修饰CAR-T细胞,包括基因淘汰和过度表达 (腺氨酸脱氨酶 - ADA-OE).
- 用氨酸 (INO) 治疗CAR-T细胞.
- 评估CAR-T细胞功能,新陈代谢,表观遗传学和干细胞特征.
- 临床规模制造INO处理的CAR-T细胞.
主要成果:
- 淘汰CD39,CD73或A2aR只显示了CAR-T细胞功效的适度改善.
- 过度表达ADA或直接接触INO显著增强CAR-T细胞功能和诱导干细胞.
- INO治疗诱导了大量的代谢重编程,包括降低了糖解和增加了线粒体容量.
- INO重新编程了表观基因组,使其具有更大的茎状性,并促进了强大的CAR-T产品的临床规模制造.
结论:
- 伊诺 (INO) 是CAR-T细胞代谢和表观遗传编程的强大调节剂.
- INO治疗增强了CAR-T细胞干细胞和抗瘤功能.
- 这种方法为制造用于临床应用的强效CAR-T细胞产品提供了一个新的平台.
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