截断的4'-氨基核酸的结构-活性关系:腺素受体活性和结合选择性
Minjae Kim1, Hongseok Choi1, Akshata Nayak2
1Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Korea.
ACS medicinal chemistry letters
|October 18, 2024
概括
截断的4'-氨基核化物对A3腺受体 (AR) 具有选择性结合. 化合物6l和6m是强大的配体,6m作为部分激动剂,提供新的治疗潜力.
科学领域:
- 药用化学 医学化学
- 药理学 药理学是指药理学的学科.
- 计算化学的计算化学
背景情况:
- A3腺受体 (A3AR) 是各种疾病的治疗点.
- 核类比物被探索为它们作为受体连接体的潜力.
- 核酸的结构修改可以改变它们与目标受体的相互作用.
研究的目的:
- 为了研究作为A3AR连接体的4个截断的欧米诺-核酸的结构-活性关系 (SAR).
- 确定在A3AR.上具有高亲和力和特异性活性的新型化合物.
- 使用计算方法阐明这些化合物与A3AR的结合相互作用.
主要方法:
- 一系列被截断的4种欧米诺-核酸的合成.
- 对人类A3AR (hA3AR) 的结合亲和和和功能活动的评估.
- 计算对接研究来分析连接体-受体相互作用.
主要成果:
- 所有合成的化合物都显示出对H3AR具有选择性和显著的结合.
- 化合物6l (Ki = 5.2 nM) 和6m (Ki = 5.7 nM) 的结合亲和度最高.
- 化合物6m,一个代表性的N6-cyclopropyl模拟物,作为一个部分激动剂,不同于对手截断了4个欧米诺-oxo和4个欧米诺-thio核酸.
- 对接研究揭示了A3AR结合口袋中的6m与Thr94的独特相互作用.
结论:
- 截断的4欧米诺-核化物代表了一类有前途的选择性A3AR调节剂.
- 化合物6m显示独特的部分激素活性和特定的结合相互作用,表明治疗潜力.
- 这项研究加深了对A3AR联体设计的理解,并确定了用于药物开发的新型化合物.
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