俄勒冈葡萄根提取物对P-糖蛋白中介传输在in vitro细胞系中的作用
概括
俄勒冈葡萄根提取物调节P-糖蛋白 (P-gp) 活性,可能影响药物的生物可用性. 这些提取物与柏柏林和柏巴胺一起,在细胞模型中抑制了P-gp流动,提取物上调调MDR1mRNA.
科学领域:
- 药理学 药理学是指药理学的学科.
- 自然产品 化学 化学
- 细胞生物学 细胞生物学
背景情况:
- P-glycoprotein (P-gp) 是一种关键的排泄物载体,参与药物吸收和生物可用性.
- 调节P-gp活性是提高各种药物的疗效的关键策略.
- 俄勒冈葡萄根是一种传统的草药,具有潜在的药理学作用.
研究的目的:
- 为了研究俄勒冈葡萄根提取物对P-糖蛋白 (P-gp) 活性的影响.
- 确定柏柏林和柏柏胺对P-gp介导药物运输的影响.
- 阐明俄勒冈葡萄根提取物调节P-gp的机制.
主要方法:
- 在Caco-2和MDCKII-MDR1细胞中进行了H-CsA和H-digoxin运输测定.
- 俄勒冈葡萄根提取物 (E1,E2),柏柏林和柏巴胺被用于评估P-gp抑制.
- 实时定量聚合酶链反应 (RT-PCR) 用于分析基因表达.
主要成果:
- 俄勒冈葡萄根提取物在Caco-2细胞中以剂量依赖的方式抑制了P-gp介导的CsA和狄戈辛的流出.
- 柏柏林和柏柏胺在Caco-2和MDCKII-MDR1细胞中显著降低了CsA流量.
- 俄勒冈葡萄根提取物上调了Caco-2和LS-180细胞中人类MDR1的mRNA水平.
结论:
- 俄勒冈葡萄根提取物调节P-葡萄蛋白活性.
- 这些调节效应可能会影响P-gp基质药物的生物可用性.
- 需要进一步的研究来探索俄勒冈葡萄根在药物输送系统中的治疗潜力.
相关概念视频
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01:16Methods for Studying Drug Absorption: In vitro
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01:17Pore Transport and Ion-Pair Transport
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