基于1,2,4-oxadiazole的高度选择性和强大的S1PR1激动剂的发现和SAR研究
Tianyu Ye1, Jinling Yu1, Yuxian Fang1
1School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China.
研究人员开发了一种选择性Sphingosine-1-phosphate受体1 (S1PR1) 激动剂Y18,用于治疗免疫疾病. Y18具有很高的选择性,有可能减少与其他S1PR1药物发生的胸肌梗塞等副作用.
科学领域:
- 医学化学
- 免疫学
- 药理学
背景情况:
- 素-1-受体1 (S1PR1) 是淋巴细胞贩运的关键调节剂,使其成为免疫媒介疾病的治疗点.
- 目前的S1PR1激动剂可能会引起心血管副作用,如心肌梗塞,限制其临床使用.
- 提高S1PR1亚型的选择性是一种提高治疗安全性的策略.
研究的目的:
- 发现和优化针对S1PR1的基于1,2,4-oxadiazole的新型激动剂.
- 识别比其他S1PR亚型具有增强选择性的化合物.
- 评估优化S1PR1激动剂的功能特征和治疗潜力.
主要方法:
- 设计和合成一系列新的1,2,4-oxadiazole化合物.
- 生物化学测试以确定S1PR1的激应活性和亚型选择性 (S1PR1-5).
- 功能测定包括受体内化,循环抑制和下游信号 (ERK1/2酸化).
主要成果:
- 化合物Y18表现出强大的S1PR1激动作用 (EC50=0. 98nM).
- Y18对S1PR2,S1PR3,S1PR5具有很高的选择性 (>10,000倍),对S1PR4具有显著的选择性 (109倍).
- Y18诱导了S1PR1内部化,抑制了受体循环,并激活了ERK1/ 2酸化.
结论:
- 新的1,2,4-oxadiazole系列产生了Y18,一个高度选择性的S1PR1激动剂.
- Y18的强大活性和功能概况表明它克服了现有的S1PR1疗法的局限性.
- Y18 是一种有希望的药物候选药物,可用于治疗免疫媒介疾病,并具有潜在的安全性.
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