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在现场用可注射核酸凝进行疫苗接种,用于协同癌症免疫疗法

Fujun Wang¹, Miao Xie¹, Yangyang Huang¹

¹School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai, 200240, China.

Angewandte Chemie (International ed. in English)

|November 30, 2023

概括

这项研究引入了一种新的核酸水凝疫苗,该疫苗结合了化疗药物,免疫激动剂和免疫检查点抑制剂. 这种创新的癌症疫苗有效触发强烈的抗瘤免疫反应,并在临床前模型中显示出显著的疗效.

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
癌症治疗癌症治疗

背景情况:

治疗性癌症疫苗看起来很有前途,但面临着诸如抗原输送不良和免疫抑制瘤微环境等挑战.
由于这些局限性,现有的癌症免疫疗法往往在有效性方面扎.

研究的目的:

开发一种新的多功能核酸水凝疫苗,用于增强癌症免疫治疗.
为了应对抗原封装,免疫激活和瘤微环境抑制方面的挑战.

主要方法:

使用核酸 (NA) 组装了一个三合一的水凝,与特定位点的7 - 乙烯 - 10 - 基丁 (SN38) 和非甲基化酸 - 瓜氨酸 (CpG) 片段接种.
利用编程细胞死亡干-1 (PD-L1) siRNA作为交叉连接剂,形成最终的NA水凝疫苗.
在黑色素瘤小鼠模型中评估了水凝在位免疫反应触发和抗瘤效应.

主要成果:

在NA水凝疫苗成功诱导免疫细胞死亡,增强抗原呈现.
证明促进树突细胞成熟和T淋巴细胞透.
在双接种疫苗后,在黑色素瘤小鼠模型中显示出显著的抗瘤作用.

结论:

开发的NA水凝疫苗有效地触发了针对癌症的强有力的免疫反应.
该平台通过克服常见的治疗障碍,展示了协同癌症免疫治疗的潜力.
三合一水凝方法为未来的癌症疫苗开发提供了一个有希望的策略.

关键词:

癌症疫苗癌症疫苗在CpG中使用.免疫治疗是一种免疫疗法.核酸水凝是核酸中的一种.在PD-L1 SiRNA中.

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