在人类小肠壁的微生理学体外模型中,对亲药代谢和药物透性动学的表征,包括产生粘液的细胞,并与LC-MS/MS分析相结合
Sultan K AlShmmari1,2, Roa S Fardous2,3, Mohammed A ALHamamah4
1Leibniz Institute of Photonic Technology, Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Albert-Einstein-Straße 9, 07745, Jena, Germany.
Advanced healthcare materials
|May 27, 2025
概括
创建了一个人类小肠的新型微流体模型,包括产生粘液的细胞. 这种模型准确地模拟了药物吸收和前药物代谢,揭示了粘液.
科学领域:
- * 药理学和药物输送
- * 微流体学和生物工程
- * 胃肠道生理学
背景情况:
- *精确预测小肠中药物吸收和新陈代谢对于治疗的发展至关重要.
- * 现有的体外模型往往缺乏原生小肠中存在的复杂的粘液层.
- * 粘液在调节药物透和生物可用性方面发挥着重要作用.
研究的目的:
- * 开发和验证基于微流体的人类小肠道屏障模型,该模型包含产生粘液的细胞.
- * 研究粘液层对治疗化合物的吸收动态的影响.
- * 评估该模型对评估前药物代谢及其对药物透的影响的有用性.
主要方法:
- *使用Caco-2 (吸收性肠细胞) 和HT-29 MTX (杯状细胞) 的共同培养系统,形成现场粘液层.
- *开发一种微流体装置来容纳细胞单层并模拟肠道条件.
- *液体染色学-并联质谱学 (LC-MS/MS) 用于量化药物度和评估吸收动力学.
- *测量体电阻 (TEER) 和FITC-dextran流量,以描述屏障的完整性.
主要成果:
- *与Caco-2单一培养相比,共同培养模型成功生成了一个功能性粘液层,导致屏障特性发生变化 (较低的TEER,更高的FITC-dextran流量).
- * 在含有粘液的共同培养模型中,多西环林,甘西克洛维尔和瓦尔甘西克洛维尔的药物透性显著更高.
- *从其前药瓦尔甘西克洛维尔产生的甘西克洛维尔的透性高于单独使用甘西克洛维尔的透性,这表明活性代谢物的运输增强.
- * 该模型证明了药物吸收和前药物代谢的可靠模拟,突出显示了粘液对肠道药物运输的影响.
结论:
- *开发的微流体肠道屏障模型有效地结合了产生粘液的细胞,为药物吸收研究提供了一个更具生理相关性的平台.
- * 粘液的存在显著影响治疗化合物的穿透动力学穿过肠道屏障.
- * 该模型是预测体内药物吸收,评估前药物策略和理解药物粘液相互作用的宝贵工具.
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