【中文摘要】 目的 通过试验观察人结肠癌细胞(the human colon carcinoma cell line,Caco-2)对酸枣仁皂苷A(Jujuboside A,JuA)摄取与转运过程,探明JuA在Caco-2细胞模型中的吸收特性,为深入研究JuA的药理学作用机制提供理论和试验依据。 方法 ① 建立并采用高效液相(High Pressure Liquid Chromatography,HPLC)方法检测JuA的浓度,评价Caco-2细胞吸收JuA的能力。 ② 建立与评估Caco-2细胞模型,由于Caco-2细胞来源和培养条件差异,不同克隆Caco-2细胞之间增殖和生化特性不尽相同。即使在相同的培养条件下,细胞模型的某些生物物理和生化特征也会有一定的差异,所以各实验间的数据只具参考价值,不可直接套用。因此本实验室在Caco-2细胞模型建立之初对一些参数如光镜检查,电镜检查,跨上皮细胞电阻(transepithelial elect rical resistance,TEER),葡聚糖的通透性等指标进行测定,以确证单层Caco-2细胞模型的特异性。 ... 【英文摘要】 OBJECTIVE To explore the absorption and transport mechanism of JuA in human intestinal by uptake and transport experiment in Caco-2 cell model and to offer the theoretics and experimental gist for lucubrate of pharmacological mechanism of JuA. METHODS ① Establishing the HPLC analyse method for JuA. ② The establishment and evaluation of Caco-2 cell model:Because of the difference between source and culture condition, different Caco-2 cell line have different characteristic in multiplication a...
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