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制造用于免疫治疗的合成粘弹性抗原呈现细胞

Zeyang Liu¹, Yan-Ruide Li^1,2, Youcheng Yang¹

¹Department of Bioengineering, University of California Los Angeles, Los Angeles, CA, USA.

Nature protocols

|October 9, 2025

概括

研究人员使用微流体开发了可调节的合成抗原呈现细胞 (APC). 这些先进的APC有效地增强T细胞激活,改善癌症免疫治疗结果.

科学领域:

生物材料科学生物材料科学
免疫学免疫学免疫学
微流体学微流体学

背景情况:

自然抗原呈现细胞 (APC) 在免疫治疗中对T细胞激活至关重要.
现有的合成防护甲往往缺乏自然防护甲的可调的物理和生物化学特性.
模仿天然的APC是提高免疫治疗疗效的关键.

研究的目的:

详细说明制造和功能化粘弹性合成 APC 的协议.
为了创建细胞大小的微珠,具有可调节的刚性和粘性弹性.
优化合成APC,以增强T细胞激活和免疫治疗应用.

主要方法:

使用高通量微流体系统制造藻酸盐微珠.
采用交叉连接策略来控制机械性能 (刚性,粘性弹性).
通过点击化学来实现表面功能化,以附加激活分子和特性特征.

主要成果:

合成APC精确地模仿天然APC的物理和激活特性.
获得增强的T细胞激活,扩张和CD8/CD4T细胞比率.
证明了CAR T细胞转导效率的提高和优越的瘤杀伤疗效.
展示了在激活后有效地清除合成防护甲.

结论:

该协议提供了一个强大的平台,用于设计具有可调节性质的合成 APC.
开发的合成APC显著改善了T细胞介导的免疫反应和治疗潜力.
这种方法为免疫细胞工程和免疫疗法开发提供了一种多功能工具.

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