利古斯提利德通过在结肠组织中非共价激活TRPA1来改善功能性便秘
Kaixue Zhang1, Guoqing Luan1, Wenjuan Liu1
1State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300353, PR China.
Journal of ethnopharmacology
|November 3, 2024
概括
天 (AS) 通过激活TRPA1通道与ligustilide (Lig) 来治疗便秘,增加粘液分泌. 这项研究阐明了AS和Lig的机制,以缓解便秘.
科学领域:
- 药理学 药理学是指药理学的学科.
- 胃肠病学 胃肠病学
- 自然产品 化学 化学
背景情况:
- 天 (Angelica sinensis) 是一种传统的治疗便秘的草药,但其活性化合物和机制尚未完全理解.
- 暂时受体潜在 (TRP) 通道调节胃肠功能,包括粘液分泌和运动,但它们与AS的关键化合物ligustilide (Lig) 的联系尚不清楚.
研究的目的:
- 为了研究功能性便秘中AS的药理动力学.
- 为了评估ligustilide (Lig) 激活TRP通道的潜力.
- 阐明Lig在缓解便秘中的分子机制.
主要方法:
- 在洛佩拉胺诱导的便秘小鼠模型中评估AS疗效.
- 使用UPLC分析和PAS染色选的活性药物成分 (API).
- 通过目标捕捞确定了Lig的目标,并使用分子对接,MST和FQ测试来确定相互作用模式.
主要成果:
- 在小鼠中,AS改善了功能性便秘,而ligustilide (Lig) 被确定为关键的粘液诱导成分.
- Lig特别准并激活结肠中的TRPA1通道,导致流入和增加粘液分泌.
- 在TRPA1前S1区域,Lig与Thr684结合,触发通道激活并缓解便秘.
结论:
- 在AS中的活性药物成分 (API) Lig通过非共价相互作用激活TRPA1来治疗便秘.
- 这种激活会增加结肠粘液分泌,从而改善功能性便秘.
- 这些发现提供了关于AS和Lig治疗便秘的机制的洞察力,并表明TRPA1激动剂发展的潜力.
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