刺痛途径抑制纳米颗粒 (SPIN) 作为治疗炎症疾病的平台
Lucinda E Pastora1, Neeraj S Namburu2, Karan Arora1
1Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37212, United States.
ACS applied bio materials
|April 2, 2024
概括
提供STING通路抑制剂的纳米粒子输送为炎症性疾病提供了一个有前途的新疗法. 刺道抑制纳米粒子 (SPINS) 提供持续的局部抑制,改善治疗潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 纳米医学是一种纳米医学.
- 药物运输 药物运输 药物运输
背景情况:
- 异常循环GMP-AMP合成酶 (cGAS) /干扰素基因刺激器 (STING) 路径激活驱动诸如结肠炎和ALS等炎症性疾病.
- 目前的cGAS/STING抑制剂 (RU.521,H-151) 显示出有前途的治疗效果,但由于系统管理而面临局限性,需要频繁高剂量,并带来感染和癌症的风险.
- 针对性或局部的STING通路抑制为治疗各种由STING驱动的炎症状况提供了可行的策略.
研究的目的:
- 开发和评估SING路径抑制纳米颗粒 (SPINS) 作为增强和持续cGAS/STING信号抑制的平台.
- 调查SPINS在提供cGAS (RU.521) 和STING (H-151) 抑制剂方面的疗效.
- 探索可调节的药物释放特征,并评估SPINS对巨细胞炎症标记物的影响.
主要方法:
- 配制的聚乳-co-甘油酸 (PLGA) 纳米颗粒载有cGAS抑制剂RU.521和STING抑制剂H-151 (SPINS).
- 将PLGA与聚乙烯基烯酸甲胺 (PHPMA-Bz) 同化,以改善药物负载,并使可调节的释放动力学成为可能.
- 在实验室中评估SPINS在抑制I型干扰素反应和评估炎症性M1样巨细胞标记物表达中的有效性.
主要成果:
- 与自由的RU.521或H-151相比,SPINS证明了I型干扰素反应的同等或更高的抑制.
- 这种P(HPMA-Bz) 共化SPIN配方显著增强了药物负载,并允许H-151在几天到一周以上的时间内持续释放.
- 所有的SPIN配方都有效地抑制了初级小鼠巨细胞中的cGAS/STING信号传递,导致M1-类巨细胞标记体的表达减少.
结论:
- SPINS代表了一种基于纳米粒子的新平台,可以有效和持续地抑制cGAS/STING通路.
- 这项研究为STING抑制剂的纳米粒子输送提供了体外概念验证,突出了它们治疗炎症状况的潜力.
- 在一系列由STING途径驱动的疾病中,SPINS为局部和有针对性的治疗干预提供了一个有希望的策略.
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