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多功能可转化的生物合成用于PD-L1的下调

Yufei Di^1,2, Zhiwen Yang^1,2, Gang Song^1,2

¹Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. wangshu@iccas.ac.cn.

Chemical communications (Cambridge, England)

|September 11, 2024

概括

一种新的生物合成材料M1在瘤细胞内转化,阻断免疫检查点. 它向Mucin 1 (MUC1),降低PD-L1表达的调节,以加强癌症治疗.

科学领域:

生物材料科学生物材料科学
癌症免疫疗法癌症免疫疗法
药物输送系统药物输送系统

背景情况:

免疫检查点阻断疗法是一种有前途的癌症治疗策略.
蛋白1 (MUC1) 在瘤中经常过度表达,并与免疫逃避有关.
向MUC1和PD-L1是癌症免疫疗法的关键方法.

研究的目的:

开发一种新的生物合成材料 (M1) 用于在位免疫检查点阻断.
为了研究M1材料的转化和释放治疗性的能力.
通过MUC1向评估M1在降低PD-L1表达的有效性.

主要方法:

开发一种具有刺激反应性质的生物合成材料M1.
在瘤细胞内由甲素B (CtsB) 触发的M1的形态转化.
从M1中暴露GO203来结合MUC1并抑制其同体化.
评估MUC1结合,PD-L1表达下调和治疗潜力.

主要成果:

在遇到CtsB.时,M1经历了一个球状到纤维状的形态转变.
转变的M1暴露了GO203,这些有效地与MUC1结合.
抑制了MUC1的同质化,导致PD-L1表达的显著下调.

结论:

生物合成材料M1为向癌症免疫治疗提供了一个新的平台.
M1的in situ转换和MUC1向机制有效地降低了PD-L1.
这种方法有可能开发先进的免疫检查点阻断疗法.

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