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通过瘤微环境调制,SMS2 siRNA 抑制了胰腺瘤的生长

Xin Jiang¹, Ziqing Yuan², Tingbo Ding²

¹Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, School of Pharmacy, Fudan University, China.

International immunopharmacology

|September 10, 2024

概括

通过siRNA基因疗法向基因合成酶2 (SMS2) 可以减少胰腺癌中免疫细胞的透. 这种方法抑制了瘤的生长,并改善了瘤的微环境,用于潜在的胰腺癌治疗.

科学领域:

在瘤学瘤学.
免疫学免疫学免疫学
分子生物学分子生物学

背景情况:

胰腺管道腺癌 (PDAC) 由于瘤微环境 (TME) 中的抑制免疫细胞透而表现出显著的治疗耐药性.
斯芬哥米林合成酶2 (SMS2) 在脂代谢和血膜完整性中起着关键作用.

研究的目的:

开发和评估一种自组装的SMS2 siRNA基因表达等离子体,用于体内输送.
在胰腺癌模型中研究SMS2抑制的治疗潜力.

主要方法:

开发一种编码SMS2siRNA的自组装等离子体,用于针对性基因沉默.
在小鼠Panc02胰腺癌模型中,SMS2 siRNA在体内给药.
对瘤生长,免疫细胞两极化 (TAMs),免疫细胞透 (TANs) 和相关信号通路 (NF-κB/CXCL5) 的分析.

主要成果:

SMS2 siRNA 特别抑制了 SMS2 的表达,同时节省了 SMS1.
在小鼠模型中,SMS2 siRNA的使用抑制了瘤生长.
SMS2 siRNA调节了与瘤相关的巨细胞两极分化,并减少了与瘤相关的中性粒细胞透.
NF-κB/CXCL5通路与观察到的免疫调节效应有关.

结论:

用siRNA准SMS2代表了克服胰腺癌治疗耐药性的可行策略.
通过SMS2抑制调节免疫抑制的TME对胰腺癌治疗具有前途.

关键词:

在CXCL5中,CXCL5是CXCL5的前身.胰腺癌是一种胰腺癌.这是SMS2SMS2 这就是SiRNA SiRNA.瘤微环境是一个微环境.

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