通过 thiolated cyclodextrins 抑制 P-glycoprotein 介导的排泄物
Florina Veider1, Soheil Haddadzadegan1, Eva Sanchez Armengol1
1Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria.
Carbohydrate polymers
|January 3, 2024
概括
化β-环氧素 (β-CD-SHs) 有效抑制了Caco-2细胞中的P-glycoprotein (P-gp) 流量. 这项研究表明β-CD-SHs可以增强药物吸收并减少药物排放,从而提供潜在的制药应用.
科学领域:
- 药理学 药理学是指药理学的学科.
- 药物运输 药物运输 药物运输
- 生物化学 生物化学
背景情况:
- 通过P-glycoprotein (P-gp) 介导的排泄物是药物开发中的一个主要障碍,限制了治疗疗效.
- 开发有效的P-gp抑制剂对于克服多药耐药性至关重要.
研究的目的:
- 为了研究化β-环极素 (β-CD-SHs) 作为潜在的抑制P-gp介导的流量.
- 评估β-CD-SHs对Caco-2细胞中P-gp基质的运输的影响.
主要方法:
- 使用Caco-2细胞单层进行了运输测定.
- 罗达胺123 (Rh123) 和素-AM的细胞内积累和流量被测量有和没有β-CD-SHs.
- 通过光标记的抗P-gp的反应性来评估P-gp形状的变化.
主要成果:
- 同时服用β-CD-SHs显著增强了细胞对Rh123和calcein-AM的吸收 (分别高达7倍和3倍).
- 在存在β-CD-SHs时,观察到Rh123流量大幅减少 (高达2.5倍).
- β-CD-SHs降低了抗P-gp抗体的活性,表明P-gp构造的改变.
结论:
- 硫化β-环氧德克斯特林显示出作为P-gp介导药物流量的调节剂的显著潜力.
- β-CD-SHs可以通过抑制Caco-2细胞中的P-gp流动来提高药物的生物可用性.
- 对β-CD-SHs的进一步研究可能会导致改善药物输送和克服多药物耐药性的新策略.
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