天然马卡朗B的类似物显示强大的抗病毒活性和更好的代谢稳定性
Gwenaëlle Jézéquel1, Jules Fargier1, Joëlle Bigay2
1Institut de Chimie des Substances Naturelles, Université Paris-Saclay, CNRS, 91198, Gif-sur-Yvette, France.
ChemMedChem
|February 12, 2025
概括
研究人员开发了稳定的macarangin B类似物,以氧化结合蛋白 (OSBP) 为目标,用于治疗寨卡病毒 (ZIKV). 这些化合物表现出强大的抗病毒活性和低毒性,提供新的治疗潜力.
科学领域:
- 药用化学 医学化学
- 病毒学 病毒学
- 药物发现 药物发现 药物发现
背景情况:
- 创新的抗病毒策略对于对抗像寨卡病毒 (ZIKV) 这样的RNA病毒至关重要.
- 氧化醇结合蛋白 (OSBP) 是病毒利用的关键宿主因子,也是有前途的抗病毒标.
- 马卡朗丁B具有强大的ZIKV抗病毒活性,但稳定性不佳.
研究的目的:
- 为了合成和评估麦卡拉B的简化类型,以提高稳定性.
- 为了研究这些类似物对OSBP抑制的结构-活性关系 (SAR).
- 评估它们作为针对ZIKV感染的新疗法的潜力.
主要方法:
- 合成具有黄核和六素 (HHX) 基因的麦卡拉B类型.
- 使用生物化学测定评估OSBP结合亲和力.
- 在体外对ZIKV抗病毒活性的评估.
- 化合物的稳定性和细胞毒性的确定.
主要成果:
- 类似物表现出增强的稳定性 (t1/2=16小时) 和高的OSBP结合亲和力 (4-69nM).
- 化合物表现出低细胞毒性 (>20μM) 和强大的ZIKV抗病毒活性,与现有抑制剂相当.
- 修改后的结构保留了有效性,同时改善了类似药物的特性.
结论:
- 简化的macarangin B类似物与黄核心是ZIKV治疗药物的有希望的化合物.
- 这些化合物提供了更好的稳定性和强大的抗病毒功效,向了必不可少的宿主因子OSBP.
- 进一步开发可能会导致对ZIKV和潜在的其他相关病毒感染的有效治疗方法.
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