通过改变其细胞外基质的粘性弹性来产生功能上不同的T细胞群体
Kwasi Adu-Berchie1,2, Yutong Liu1,2, David K Y Zhang1,2
1John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.
Nature biomedical engineering
|June 26, 2023
概括
改变细胞外矩阵 (ECM) 粘性弹性,周围环境的物质性质,可以产生不同的T细胞群. 这一发现为优化T细胞疗法提供了新的策略,通过控制T细胞功能通过矩阵属性来优化T细胞疗法.
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
- 细胞生物学 细胞生物学
背景情况:
- 采用T细胞疗法的疗效依赖于产生具有快速效应功能的T细胞和长期免疫力.
- T细胞的表型和功能与它们的组织定位密切相关.
- 组织微环境的机械特性越来越被认为是细胞行为的关键调节者.
研究的目的:
- 研究是否改变细胞外基质 (ECM) 的粘性弹性可以引导从相同刺激的T细胞生成功能上不同的T细胞群.
- 阐明ECM粘性弹性影响T细胞表型和功能的分子机制.
- 探索调节矩阵粘弹性的潜力,用于治疗性T细胞制造.
主要方法:
- 开发一种可调节的ECM模型,使用norbornene-modified I型原蛋白.
- 独立调整ECM粘弹性通过生物对等点击化学与四素部分.
- 评估T细胞表型,功能和相关的信号通路 (例如,激活蛋白-1),以应对不同的ECM粘性弹性.
主要成果:
- ECM粘弹性,独立于散装度调节,显著改变T细胞表型和功能.
- 激活蛋白-1 (AP-1) 信号通路被确定为ECM粘性弹性诱导的T细胞调节的关键媒介.
- 观察到的T细胞反应反映了从机械上不同的人体组织中分离的T细胞的基因表达特征.
结论:
- 矩阵粘弹性是一个关键的环境提示,它决定了T细胞的功能结果.
- 调节ECM粘性弹性提供了一种新的策略,用于设计具有所需特性的治疗T细胞产品.
- 这种方法有望在各种临床应用中提高采用T细胞疗法的疗效.
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