同步编程的iPSC衍生的NK细胞夺了TIGIT和CD73活动,用于质母细胞瘤治疗
Kyle B Lupo1, Xue Yao1, Shambhavi Borde1
1Department of Industrial and Molecular Pharmaceutics, Purdue University, West Lafayette, IN, USA.
Nature communications
|March 1, 2024
概括
用工程NK细胞向TIGIT/CD155和CD73通路可以消除质母细胞瘤. 这种新的方法重编程瘤微环境,为质母细胞瘤提供了有前途的全基因治疗方法.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 生物技术是生物技术.
背景情况:
- 质母细胞瘤表现出严重的异质性,需要策略来克服免疫抑制以获得有效的抗瘤反应.
- 具有Ig和ITIM域的T细胞免疫受体 (TIGIT) 和其抗原CD155在质母细胞瘤中形成免疫抑制轴,但针对TIGIT的单一治疗已显示出有限的疗效.
- 破坏抑制性TIGIT网络对于实现可测量的抗质母细胞瘤反应至关重要.
研究的目的:
- 研究工程自然杀手 (NK) 细胞的有效性,这些细胞针对质母细胞瘤中的TIGIT/CD155和CD73通路.
- 确定是否破坏这种双轴可以克服瘤诱导的免疫抑制并增强抗瘤免疫力.
主要方法:
- 诱导多能干干细胞衍生NK细胞的工程化synNotch介导激活以准TIGIT/CD155和CD73.
- 通过将工程NK细胞移植到患者衍生的质母细胞瘤模型中.
- 分析NK细胞功能,瘤微环境调节和整体瘤根除.
主要成果:
- 工程NK细胞成功夺了TIGIT/CD155轴,并阻断了CD73,破坏了腺介导的免疫抑制.
- 准TIGIT/CD155和CD73促进了NK细胞的透,并增强了它们的细胞分解活性,从而完全消除了质母细胞瘤.
- 共同向通过招募T细胞和降低M2巨细胞的调节来重新编程瘤微环境.
结论:
- 在质母细胞瘤治疗中,TIGIT/CD155和CD73是可行的和可向的合作伙伴.
- 由SynNotch设计的多能干细胞衍生NK细胞是抗质母细胞瘤反应的有效媒介.
- 这种方法代表了质母细胞瘤的强大的全基因治疗选择.
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