Absorption Mechanism of Palmatine Chloride Across Caco-2 Cell Monolayer Mode

XIE She-ping; TAN Xiao-jing; BI Kai-shun; ZHANG Lei; LIAO Qiong-feng

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Absorption Mechanism of Palmatine Chloride Across Caco-2 Cell Monolayer Mode

更新时间：2024-01-04

- Absorption Mechanism of Palmatine Chloride Across Caco-2 Cell Monolayer Mode
- Chinese Journal of Experimental Traditional Medical Formulae Vol. 17, Issue 3, Pages: 209-213(2011)
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- Published：2011
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XIE She-ping, TAN Xiao-jing, BI Kai-shun, et al. Absorption Mechanism of Palmatine Chloride Across Caco-2 Cell Monolayer Mode[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(3): 209-213.
DOI：

XIE She-ping, TAN Xiao-jing, BI Kai-shun, et al. Absorption Mechanism of Palmatine Chloride Across Caco-2 Cell Monolayer Mode[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(3): 209-213. DOI：

摘要

目的: 研究盐酸巴马汀在Caco-2细胞模型中的吸收机制。方法: 用Caco-2细胞单层模型研究盐酸巴马汀的双向转运

并考察时间、药物浓度、抑制剂、pH及温度对盐酸巴马汀吸收的影响。用高效液相色谱法检测药物浓度

计算其表观渗透系数。结果: 盐酸巴马汀在Caco-2细胞模型中

从单层细胞层顶端到基底端的转运大于基底端到顶端的转运

随时间和浓度的增加

药物吸收呈饱和趋势

且P-糖蛋白(P-glycoprotein

P-gp)抑制剂维拉帕米、pH和温度对它的转运有影响。结论: 盐酸巴马汀在Caco-2细胞模型中的吸收主要是由载体介导的主动转运

且该主动转运的载体位于Caco-2细胞单层的顶端。

Abstract

Objective: To investigate the absorption mechanism of palmatine chloride by using Caco-2 monolayer model. Method: A Caco-2 cell monolayer model was used to investigate the bi-directional transport of palmatine chloride. The effect of time

drug concentration

temperature

pH and inhibitors on the absorption of palmatine chloride was studied. Apparent permeability coefficient (Papp) of palmatine was calculated based on quantitation by HPLC. Result: Directional flux studies with palmatine chloride suggested transport with the permeability in the apical to basolateral direction higher than that in the basolateral to apical direction. Transport of palmatine chloride could be of saturation with time and concentration

and it was also effected by P-glycoprotein inhibitor

pH and temperature. Conclusion: The absorption of palmatine chloride in Caco-2 cell model was an active transportation mediated by transporter

which mainly located in the apical side of Caco-2 cell monolayer.

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