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基于生理学的建模和西斯普拉丁药理动力学的跨物种预测
1Department of Pharmaceutics and Center of Excellence for Pharmaceutical Translational Research and Education, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, United States.
一个新的生理学基础的药理动力学 (PBPK) 模型准确地预测了动物和人类中西斯的分布. 这一框架有助于理解的药理动力学和优化癌症治疗.
科学领域:
- 药理学 药理学是指药理学的学科.
- 毒理学 毒理学 毒理学
- 生物医学工程 生物医学工程
背景情况:
- 西斯是一种广泛使用的化疗药物.
- 了解西斯的药理动力学对于有效治疗和尽量减少毒性至关重要.
- 基于生理学的药理动力学 (PBPK) 模型为预测体内的药物行为提供了一个强大的工具.
研究的目的:
- 开发和验证cisplatin的PBPK建模框架.
- 预测在包括人类在内的各种物种的血和组织分布.
- 阐明西斯的生物转化途径和代谢过程.
主要方法:
- 使用11个动物数据集构建PBPK模型.
- 包括西斯的生物转化成移动 (k1) 和固定 (k2) 代谢物,以及随后的转化 (k3).
- 评估模型的预测性能,使用子,狗和人类数据,包括尸检组织样本.
主要成果:
- 该PBPK模型成功捕获了的复杂药理动力学在动物与精确的参数估计.
- 对于移动和固定代谢物形成率 (k1=k2·SF) 之间的关系,确定了一个缩放因子 (SF=0.74).
- 基于蛋白质周转率的k3的全米缩放使得准确的物种间预测成为可能,对于人体血和组织水平的良好协议.
结论:
- 开发的PBPK模型为跨物种预测西斯的药理动力学提供了一个强大的框架.
- 这种建模方法可以帮助理解的配置,并为临床应用提供信息.
- 这项研究强调了PBPK建模在药物开发和针对基化疗的个性化医学中的实用性.
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