基于酸的刺痛抑制剂 酸的刺痛抑制剂
Leonard Barasa1,2, Leo DeOrsey1,2, Maeve D O'Reilly1,2
1Program in Chemical Biology, University of Massachusetts Chan Medical School, 364 Plantation Street, Worcester, Massachusetts 01605, United States.
ACS omega
|September 22, 2025
概括
新的STING抑制剂UM-242和UM-259被开发用于治疗依赖于STING的炎症性疾病. 这些化合物有效地阻断了STING信号传递,为ALS和狼等疾病提供了潜在的治疗益处.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 药物发现 药物发现 药物发现
背景情况:
- 循环GMP-AMP合成酶 (cGAS) 刺激干扰素基因 (STING) 途径对于对外来DNA的天生的免疫是至关重要的.
- 失调的STING激活与自身免疫和自身炎症性疾病有关,包括肌缩性侧面硬化症 (ALS),狼,艾卡迪-古提耶氏综合征 (AGS) 和在婴儿期发病的STING相关血管病变 (SAVI).
- 正在探索作为这些条件的潜在治疗方法的STING对抗剂.
研究的目的:
- 为了优化STING对抗剂LB244.4的功效.
- 开发新的STING抑制剂,以提高疗效和更广泛的适用性.
- 评估新化合物作为STING依赖性炎症性疾病的治疗剂的潜力.
主要方法:
- 进行了结构-活性关系 (SAR) 研究以优化LB244.4.
- 开发的化合物UM-242和UM-259被测试了它们在小鼠和人类细胞系统中抑制STING依赖信号传递的能力.
- 抑制在各种细胞类型中进行了评估,包括原发性人类CD14+单细胞,以及对常见的人类STING变异的抑制.
主要成果:
- 优化LB244导致发现UM-242和UM-259.
- UM-242和UM-259表现出对老鼠和人类STING信号的强烈抑制,与LB244相比.
- 这些新型抑制剂对人类常见的STING变异R232保持了有效性,并在人类初级单细胞中表现出活性.
结论:
- UM-242和UM-259是新型STING抗体,具有对人类和小鼠STING的强烈抑制活性.
- 这些化合物对常见的人类STING变体和人类原发性免疫细胞有效.
- UM-242和UM-259代表了开发针对STING依赖性炎症性疾病的治疗方法的有希望的支架.
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