›› 2017, Vol. 2 ›› Issue (4): 20-23.

• 药学 • 上一篇    下一篇

灯盏花素对Caco-2细胞中P-gp蛋白外排活性的影响

  

  1. (1. 大理大学药学与化学学院,云南大理671000;2. 云南省昆虫医药研发重点实验室,云南大理671000)
  • 收稿日期:2016-08-19 修回日期:2016-11-08 出版日期:2017-04-15 发布日期:2017-04-15
  • 作者简介:周玄,硕士研究生,主要从事体内药物分析研究.
  • 基金资助:

    国家自然科学基金资助项目(81241139;81360511);云南省教育厅科学研究基金资助项目(2013J118)

Effect of Breviscapin on the Efflux Activity of P-gp in Caco-2 Cells

  1. (1. College of Pharmacy and Chemistry, Dali University, Dali, Yunnan 671000, China; 2. Key Laboratory of Pharmaceutical R & D of
    Insects in Yunnan Province, Dali, Yunnan 671000, China)
  • Received:2016-08-19 Revised:2016-11-08 Online:2017-04-15 Published:2017-04-15

摘要:

目的:研究灯盏花素对Caco-2 细胞中P-糖蛋白(P-gp)外排活性的影响。方法:采用MTT法检测灯盏花素对Caco-2细
胞存活率的影响,以确定其试验剂量;通过BCA法测定灯盏花素对Caco-2 细胞中总蛋白量的影响,罗丹明123(Rh123)转运
试验评价灯盏花素作用后时间对P-gp外排活性的影响。结果:灯盏花素浓度< 577.95 μg/mL时,Caco-2 细胞的存活率> 90%;
灯盏花素能增加Caco-2 细胞中P-gp的外排活性,加入Rh123后,Rh123在Caco-2 细胞内的累积量先增加再减少;作用60 min
后,灯盏花素(120、240 μg/mL)对Caco-2 细胞内总蛋白量分别上调222.87%,154.23%。结论:灯盏花素能增加P-gp的外排活性,并
上调Caco-2 细胞中的总蛋白量。

关键词: 灯盏花素, P-糖蛋白, Caco-2细胞, 罗丹明123

Abstract:

Objective: To investigate the effect of breviscapin on the efflux activity of P-gp in Caco-2 cells. Methods: Cell survival
rate of Caco-2 cells with different breviscapin concentrations were measured by MTT assay. The BCA assay was used to determine the
total protein level of Caco-2 cells and the efflux activity of P-gp was determined by Rhodamine-123 assay after the incubation with
breviscapin. Results: The cell survival rate of Caco-2 cells was higher than 90% when the concentration of breviscapin was less than
577.95 μg/mL. The efflux activity of P-gp was increased by breviscapin(120 μg/mL, 240 μg/mL)in Caco-2 cells. The intracellular
accumulation of rhodamine-123 was increased and then decreased after the addition of rhodamine-123. After the incubation for 60
min with breviscapin(120 μg/mL, 240 μg/mL), total protein level in Caco-2 cells was up-regulated 222.87%, 154.23% respectively.
Conclusion: Breviscapin can up-regulate total protein level and increase the efflux activity of P-gp in Caco-2 cells.

Key words: Breviscapin, P-gp, Caco-2 cell, Rhodamine-123

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