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反感性寡核酸治疗降低IL-1β表达并延长突变NLRP3小鼠的生存期

Benedikt Kaufmann^1,2, Marta de Los Reyes Jiménez³, Laela M Booshehri¹

¹Department of Pediatrics, University of California San Diego, La Jolla, CA.

Journal of immunology (Baltimore, Md. : 1950)

|May 31, 2023

概括

针对NLRP3基因的反感性寡核酸 (ASO) 能够有效地降低酸相关周期性综合征 (CAPS) 模型中的炎症. 这项研究表明,ASO疗法是对CAPS和其他NLRP3介导的炎症性疾病的有希望的治疗方法.

科学领域:

遗传学和分子生物学
免疫学免疫学免疫学
药理学药理学是指药理学的学科.

背景情况:

低氨酸相关周期性综合征 (CAPS) 是由NLRP3功能获取突变驱动的自身炎症性疾病.
通过NLRP3炎症酶激活,通过IL-1β释放导致全身和组织炎症.
反感性寡核酸 (ASO) 提供了向基因沉默治疗方法.

研究的目的:

评估一种Nlrp3特异性抗感性寡核酸 (ASO) 在治疗冷氨酸相关周期性综合征 (CAPS) 的疗效.
在临床前CAPS模型中评估NLRP3特异性ASO对NLRP3表达和IL-1β产生的影响.

主要方法:

在小鼠细胞系和骨髓衍生巨细胞 (BMDMs) 中设计和测试了一种Nlrp3特异性的ASO.
将Nlrp3特异性ASO给Nlrp3试验小鼠,并监测存活率,Nlrp3和IL-1β表达.
从Nlrp3突变BMDMs中评估IL-1β释放,这些BMDMs被用Nlrp3特异性ASO治疗.

主要成果:

特定于Nlrp3的ASO显著降低了Nlrp3和细胞系和BMDM中的成熟IL-1β表达.
活体治疗减少了Nlrp3突变BMDMs中的IL-1β释放.
在体内治疗延长了Nlrp3突变小鼠的生存时间,减少了全身炎症,降低了组织Nlrp3和IL-1β水平.

结论:

在CAPS模型中,NLRP3特定的ASO治疗有效抑制NLRP3表达和IL-1β释放.
ASO疗法为CAPS和其他由NLRP3炎症酶激活驱动的疾病提供了潜在的治疗策略.

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