人体肠单层:一种新的,功能稳定的模型,用于调查口服药物处置
Christopher Arian1, Eimear O'Mahony1, James W MacDonald2
1Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, Washington.
Drug metabolism and disposition: the biological fate of chemicals
|January 30, 2025
概括
人体肠单层为研究口服药物吸收和代谢提供了一个新的体外模型. 这种模型可以维持屏障功能和代谢活动长达42天,从而推进药物处置研究.
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
- 生物技术是生物技术.
背景情况:
- 开发准确的体外药物处置模型对于预测口服药物的疗效至关重要.
- 现有的模型往往缺乏结合肠道吸收和第一通代谢评估能力.
- 人体体对更全面的体外药物测试系统提供了潜在的解决方案.
研究的目的:
- 评估人类肠单层作为一种体外模型,用于同时评估肠道药物吸收和第一通代谢.
- 为了确定在培养中体单层的长期生存能力和功能.
- 在体模型中研究药物代谢酶的表达和活性.
主要方法:
- 人类十二指肠干细胞被培养在Transwell插件上形成体单层.
- 用RNA测序和免疫细胞化学来确认细胞分化和形态学.
- 通过体电阻和细胞透性测试来评估屏障完整性.
- 在42天的时间里,在各种条件下测量了P450 3A (CYP3A) 细胞染色体的活性.
主要成果:
- 体单层保持了屏障完整性,通过稳定的体电阻和低透性得到证实,长达42天.
- 药物代谢酶CYP3A在培养7,21和42天后在体单层中活跃.
- 这项研究是第一个在12天以上培养的体中证明药物代谢酶功能的研究.
结论:
- 人体肠单层是研究和预测口服药物吸收和代谢的有前途的ex vivo模型.
- 该模型的扩展可行性和同时评估屏障功能和代谢活性,比传统的体外系统提供了优势.
- 这种先进的模型可以为新药和个性化医疗方法的开发做出重大贡献.
相关概念视频
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01:20Factors Affecting Dissolution: Drug Permeability, Stability and Stereochemistry
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01:07Physiological Pharmacokinetic Models: Incorporating Hepatic Transporter-Mediated Clearance
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01:19One-Compartment Open Model for IV Bolus Administration: General Considerations
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01:27Factors Influencing Drug Absorption: Drug Dissolution
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01:09Methods for Studying Drug Absorption: In situ
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201